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SUS_Summary File Reference

Detailed Description

Summary of Standard UNIX Functions, Structures, and Unions.

This page summarizes the 307 functions, 38 structures, and 2 unions included in Advanced UNIX Programming, 2nd Edition.

Note that signal and sigset are listed as variables due to a parsing problem with Doxygen, which was used to generate this page.

Definition in file SUS_Summary.

Go to the source code of this file.

Compounds

struct addrinfo

struct aiocb

struct dirent

struct flock

struct group

struct hostent

struct if_nameindex

struct iovec

struct ipc_perm

struct itimerspec

struct itimerval

struct mq_attr

struct msg

struct msghdr

struct msqid_ds

struct netent

struct passwd

struct pollfd

struct protoent

struct rlimit

struct rusage

struct sembuf

struct semid_ds

union semun

struct servent

struct sigaction

struct sigevent

struct siginfo_t

union sigval

struct SimpleSem

struct sockaddr_in

struct sockaddr_in6

struct sockaddr_un

struct stat

struct statvfs

struct termios

struct timespec

struct timeval

struct tm

struct tms

struct utimbuf

Functions

void FD_CLR (int fd, fd_set *fdset)

int FD_ISSET (int fd, fd_set *fdset)

void FD_SET (int fd, fd_set *fdset)

void FD_ZERO (fd_set *fdset)

void _Exit (int status)

void _exit (int status)

void _longjmp (jmp_buf loc_info, int val)

int _setjmp (jmp_buf loc_info)

void abort (void)

int accept (int socket_fd, struct sockaddr *sa, socklen_t *sa_len)

int access (const char *path, int what)

int aio_cancel (int fd, struct aiocb *aiocbp)

int aio_error (const struct aiocb *aiocbp)

int aio_fsync (int op, struct aiocb *aiocbp)

int aio_read (struct aiocb *aiocbp)

ssize_t aio_return (struct aiocb *aiocbp)

int aio_suspend (const struct aiocb *const list[], int cbcnt, const struct timespec *timeout)

int aio_write (struct aiocb *aiocbp)

unsigned alarm (unsigned secs)

char * asctime (const struct tm *tmbuf)

int atexit (void(*fcn)(void))

int bind (int socket_fd, const struct sockaddr *sa, socklen_t sa_len)

speed_t cfgetispeed (const struct termios *tp)

speed_t cfgetospeed (const struct termios *tp)

int cfsetispeed (struct termios *tp, speed_t speed)

int cfsetospeed (struct termios *tp, speed_t speed)

int chdir (const char *path)

int chmod (const char *path, mode_t mode)

int chown (const char *path, uid_t uid, gid_t gid)

int chroot (const char *path)

clock_t clock (void)

int clock_getcpuclockid (pid_t pid, clockid_t *clock_id)

int clock_getres (clockid_t clock_id, struct timespec *res)

int clock_gettime (clockid_t clock_id, struct timespec *tp)

int clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *nsecs, struct timespec *remain)

int clock_settime (clockid_t clock_id, const struct timespec *tp)

int close (int fd)

int closedir (DIR *dirp)

size_t confstr (int name, char *buf, size_t len)

int connect (int socket_fd, const struct sockaddr *sa, socklen_t sa_len)

int creat (const char *path, mode_t perms)

char * ctermid (char *buf)

char * ctime (const time_t *t)

double difftime (time_t time1, time_t time0)

int dup (int fd)

int dup2 (int fd, int fd2)

void endhostent (void)

void endnetent (void)

void endprotoent (void)

void endservent (void)

int execl (const char *path, const char *arg0, const char *arg1,..., (char *)NULL)

int execle (const char *path, const char *arg0, const char *arg1,..., (char *)NULL, char *const envv[])

int execlp (const char *file, const char *arg0, const char *arg1,..., (char *)NULL)

int execv (const char *path, char *const argv[])

int execve (const char *path, char *const argv[], char *const envv[])

int execvp (const char *file, char *const argv[])

void exit (int status)

int fchdir (int fd)

int fchmod (int fd, mode_t mode)

int fchown (int fd, uid_t uid, gid_t gid)

int fcntl (int fd, int op,...)

int fdatasync (int fd)

pid_t fork (void)

long fpathconf (int fd, int name)

void freeaddrinfo (struct addrinfo *infop)

int fstat (int fd, struct stat *buf)

int fstatvfs (int fd, struct statvfs *buf)

int fsync (int fd)

key_t ftok (const char *path, int id)

int ftruncate (int fd, off_t length)

const char * gai_strerror (int code)

int getaddrinfo (const char *nodename, const char *servname, const struct addrinfo *hint, struct addrinfo **infop)

char * getcwd (char *buf, size_t bufsize)

tm * getdate (const char *s)

gid_t getegid (void)

char * getenv (const char *var)

uid_t geteuid (void)

gid_t getgid (void)

group * getgrgid (gid_t gid)

hostent * gethostbyaddr (const void *addr, socklen_t len, int family)

hostent * gethostbyname (const char *nodename,)

hostent * gethostent (void)

long gethostid (void)

int gethostname (char *name, size_t namelen)

int getitimer (int which, struct itimerval *val)

char * getlogin (void)

int getnameinfo (const struct sockaddr *sa, socklen_t sa_len, char *nodename, socklen_t nodelen, char *servname, socklen_t servlen, unsigned flags)

netent * getnetbyaddr (uint32_t net, int type)

netent * getnetbyname (const char *name)

netent * getnetent (void)

int getpeername (int socket_fd, struct sockaddr *sa, socklen_t *sa_len)

pid_t getpgid (pid_t pid)

pid_t getpid (void)

pid_t getppid (void)

protoent * getprotobyname (const char *name)

protoent * getprotobynumber (int proto)

protoent * getprotoent (void)

passwd * getpwuid (uid_t uid)

int getrlimit (int resource, struct rlimit *rlp)

int getrusage (int who, struct rusage *r_usage)

servent * getservbyname (const char *name, const char *proto)

servent * getservbyport (int port, const char *proto)

servent * getservent (void)

pid_t getsid (pid_t pid)

int getsockname (int socket_fd, struct sockaddr *sa, socklen_t *sa_len)

int getsockopt (int socket, int level, int option, const void *value, socklen_t *value_len)

int gettimeofday (struct timeval *tvalbuf, void *dummy)

uid_t getuid (void)

tm * gmtime (const time_t *t)

int grantpt (int fd)

uint32_t htonl (uint32_t hostnum)

uint16_t htons (uint16_t hostnum)

void if_freenameindex (struct if_nameindex *ptr)

char * if_indextoname (unsigned ifindex, char *ifname)

if_nameindex * if_nameindex (void)

unsigned if_nametoindex (const char *ifname)

in_addr_t inet_addr (const char *cp)

char * inet_ntoa (struct in_addr in)

const char * inet_ntop (int domain, const void *src, char *dst, socklen_t dst_len)

int inet_pton (int domain, const char *src, void *dst)

int ioctl (int fd, int req,...)

int isatty (int fd)

int kill (pid_t pid, int signum)

int killpg (pid_t pgrp, int signum)

int lchown (const char *path, uid_t uid, gid_t gid)

int link (const char *oldpath, const char *newpath)

int lio_listio (int mode, struct aiocb *const list[], int cbcnt, struct sigevent *sig)

int listen (int socket_fd, int backlog)

tm * localtime (const time_t *t)

int lockf (int fd, int op, off_t len)

void longjmp (jmp_buf loc_info, int val)

off_t lseek (int fd, off_t pos, int whence)

int lstat (const char *path, struct stat *buf)

int mkdir (const char *path, mode_t perms)

int mkfifo (const char *path, mode_t perms)

int mknod (const char *path, mode_t perms, dev_t dev)

int mkstemp (char *template)

time_t mktime (struct tm *tmbuf)

void * mmap (void *addr, size_t len, int prot, int flags, int fd, off_t off)

int mount (const char *source, const char *target, const char *type, unsigned long flags, const void *data)

int mq_close (mqd_t mqd)

int mq_getattr (mqd_t mqd, struct mq_attr *attr)

int mq_notify (mqd_t mqd, const struct sigevent *ep)

mqd_t mq_open (const char *name, int flags)

ssize_t mq_receive (mqd_t mqd, char *msg, size_t msgsize, unsigned *priorityp)

int mq_send (mqd_t mqd, const char *msg, size_t msgsize, unsigned priority)

int mq_setattr (mqd_t mqd, const struct mq_attr *attr, struct mq_attr *oldattr)

ssize_t mq_timedreceive (mqd_t mqd, char *msg, size_t msgsize, unsigned *priorityp const struct timespec *tmout)

int mq_timedsend (mqd_t mqd, const char *msg, size_t msgsize, unsigned priority const struct timespec *tmout)

int mq_unlink (const char *name)

int msgctl (int msqid, int cmd, struct msqid_ds *data)

int msgget (key_t key, int flags)

ssize_t msgrcv (int msqid, const void *msgp, size_t mtextsize, long msgtype, int flags)

int msgsnd (int msqid, const void *msgp, size_t msgsize, int flags)

int munmap (void *addr, size_t len)

int nanosleep (const struct timespec *nsecs, struct timespec *remain)

int nice (int incr)

uint32_t ntohl (uint32_t netnum)

uint16_t ntohs (uint16_t netnum)

int open (const char *path, int flags, mode_t perms)

DIR * opendir (const char *path)

long pathconf (const char *path, int name)

int pause (void)

int pipe (int pfd[2])

int poll (struct pollfd fdinfo[], nfds_t nfds, int timeout)

int posix_openpt (int oflag)

ssize_t pread (int fd, void *buf, size_t nbytes off_t offset)

int pselect (int nfds, fd_set *readset, fd_set *writeset, fd_set *errorset, const struct timespec *timeout, const sigset_t *sigmask)

int pthread_cancel (pthread_t thread_id)

void pthread_cleanup_pop (int execute)

void pthread_cleanup_push (void(*handler)(void *), void *arg)

int pthread_cond_signal (pthread_cond_t *cond)

int pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex)

int pthread_create (pthread_t *thread_id, const pthread_attr_t *attr, void *(*start_fcn)(void *), void *arg)

int pthread_join (pthread_t thread_id, void **status_ptr)

int pthread_kill (pthread_t thread_id, int signum)

int pthread_mutex_lock (pthread_mutex_t *mutex)

int pthread_mutex_unlock (pthread_mutex_t *mutex)

int pthread_sigmask (int how, const sigset_t *set, sigset_t *oset)

void pthread_testcancel (void)

char * ptsname (int fd)

int putenv (char *string)

ssize_t pwrite (int fd, const void *buf, size_t nbytes off_t offset)

int raise (int signum)

ssize_t read (int fd, void *buf, size_t nbytes)

dirent * readdir (DIR *dirp)

int readdir_r (DIR *restrict dirp, struct dirent *entry, struct dirent **result)

ssize_t readlink (const char *path, char *buf, size_t bufsize)

ssize_t readv (int fd, const struct iovec *iov, int iovcnt)

ssize_t recv (int socket_fd, void *buffer, size_t length, int flags)

ssize_t recvfrom (int socket_fd, void *buffer, size_t length, int flags, struct sockaddr *sa, socklen_t *sa_len)

ssize_t recvmsg (int socket_fd, struct msghdr *message, int flags)

int rename (const char *oldpath, const char *newpath)

void rewinddir (DIR *dirp)

int rmdir (const char *path)

void seekdir (DIR *dirp, long loc)

int select (int nfds, fd_set *readset, fd_set *writeset, fd_set *errorset, struct timeval *timeout)

int sem_close (sem_t *sem)

int sem_destroy (sem_t *sem)

int sem_getvalue (sem_t *restrict sem, int *valuep)

int sem_init (sem_t *sem, int pshared, unsigned value)

sem_t * sem_open (const char *name, int flags)

int sem_post (sem_t *sem)

int sem_timedwait (sem_t *restrict sem, const struct timespec *time)

int sem_trywait (sem_t *sem)

int sem_unlink (const char *name)

int sem_wait (sem_t *sem)

int semctl (int semid, int semnum, int cmd, union semun arg)

int semget (key_t key, int nsems, int flags)

int semop (int semid, struct sembuf *sops, size_t nsops)

ssize_t send (int socket_fd, const void *data, size_t length, int flags)

ssize_t sendmsg (int socket_fd, const struct msghdr *message, int flags)

ssize_t sendto (int socket_fd, const void *message, size_t length, int flags, const struct sockaddr *sa, socklen_t sa_len)

int setegid (gid_t gid)

int setenv (const char *var, const char *val, int overwrite)

int seteuid (uid_t uid)

int setgid (gid_t gid)

void sethostent (int stayopen)

int setitimer (int which, const struct itimerval *val, struct itimerval *oval)

int setjmp (jmp_buf loc_info)

void setnetent (int stayopen)

int setpgid (pid_t pid, pid_t pgid)

void setprotoent (int stayopen)

int setrlimit (int resource, const struct rlimit *rlp)

void setservent (int stayopen)

pid_t setsid (void)

int setsockopt (int socket_fd, int level, int option, const void *value, socklen_t value_len)

int setuid (uid_t uid)

int shm_open (const char *name, int flags, mode_t perms)

int shm_unlink (const char *name)

void * shmat (int shmid, const void *shmaddr, int flags)

int shmctl (int shmid, int cmd, struct shmid_ds *data)

int shmdt (const void *shmaddr)

int shmget (key_t key, size_t size, int flags)

int shutdown (int socket_fd, int how)

int sigaction (int signum, const struct sigaction *act, struct sigaction *oact)

int sigaddset (sigset_t *set, int signum)

int sigaltstack (const stack_t *stack, stack_t *ostack)

int sigdelset (sigset_t *set, int signum)

int sigemptyset (sigset_t *set)

int sigfillset (sigset_t *set)

int sighold (int signum,)

int sigignore (int signum,)

int siginterrupt (int signum, int flag)

int sigismember (const sigset_t *set, int signum)

void siglongjmp (sigjmp_buf loc_info, int val)

int sigpause (int signum,)

int sigpending (sigset_t *set)

int sigprocmask (int how, const sigset_t *set, sigset_t *oset)

int sigqueue (pid_t pid, int signum, const union sigval value)

int sigrelse (int signum,)

int sigsetjmp (sigjmp_buf loc_info, int savemask)

int sigsuspend (const sigset_t *sigmask)

int sigtimedwait (const sigset_t *set, siginfo_t *info, const struct timespec *ts)

int sigwait (const sigset_t *set, int *signum)

int sigwaitinfo (const sigset_t *set, siginfo_t *info)

unsigned sleep (unsigned secs)

int sockatmark (int socket_fd,)

int socket (int domain, int type, int protocol)

int socketpair (int domain, int type, int protocol int socket_vector[2])

int stat (const char *path, struct stat *buf)

int statvfs (const char *path struct statvfs *buf)

size_t strftime (char *buf, size_t bufsize, const char *format, const struct tm *tmbuf)

char * strptime (const char *s, const char *format, struct tm *tmbuf)

int symlink (const char *oldpath, const char *newpath)

void sync (void)

long sysconf (int name)

int system (const char *command)

int tcdrain (int fd)

int tcflow (int fd, int action)

int tcflush (int fd, int queue)

int tcgetattr (int fd, struct termios *tp)

pid_t tcgetpgrp (int fd)

pid_t tcgetsid (int fd)

int tcsendbreak (int fd, int duration)

int tcsetattr (int fd, int actions, const struct termios *tp)

int tcsetpgrp (int fd, pid_t pgid)

long telldir (DIR *dirp)

time_t time (time_t *t)

int timer_create (clockid_t clockid, struct sigevent *sig, timer_t *timer_id)

int timer_delete (timer_t timer_id)

int timer_getoverrun (timer_t timer_id)

int timer_gettime (timer_t timer_id, struct itimerspec *val)

int timer_settime (timer_t timer_id, int flags, const struct itimerspec *val, struct itimerspec *oval)

clock_t times (struct tms *buffer)

int truncate (const char *path, off_t length)

char * ttyname (int fd)

int ttyname_r (int fd, char *buf, size_t bufsize)

void tzset (void)

long ulimit (int cmd,...)

mode_t umask (mode_t cmask)

int umount (const char *target)

int uname (struct utsname *name)

int unlink (const char *path)

int unlockpt (int fd)

int unsetenv (const char *var)

int usleep (useconds_t usecs)

int utime (const char *path, const struct utimbuf *timbuf)

pid_t vfork (void)

pid_t wait (int *statusp,)

int waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options)

pid_t waitpid (pid_t pid, int *statusp, int options)

size_t wcsftime (wchar_t *buf, size_t bufsize, const wchar_t *format, const struct tm *tmbuf)

ssize_t write (int fd, const void *buf, size_t nbytes)

ssize_t writev (int fd, const struct iovec *iov, int iovcnt)

Variables

void(*)(int) signal (int signum, void(*act)(int))

void(*)(int) sigset (int signum, void(*act)(int))

int daylight

long timezone

char * tzname [2]

Function Documentation

void _exit ( int status )

Description:
Terminate process without clean-up (Std. UNIX; see AUP2 Sec. 5.7)

Headers:
unistd.h

Returns:
Does not return

Parameters:

status exit status

Referenced by edinvoke(), execute3(), fcn(), fd_check(), handler(), invoke(), main(), redirect(), and sig_thread().

void _Exit ( int status )

Description:
Terminate process without clean-up (Std. UNIX; see AUP2 Sec. 5.7)

Headers:
stdlib.h

Returns:
Does not return

Parameters:

status exit status

void _longjmp ( jmp_buf loc_info,

int val

)

Description:
Jump to jump point without restoring signal mask (Std. UNIX; see AUP2 Sec. 9.6)

Headers:
setjmp.h

Parameters:

loc_info saved location information

val value for setjmp to return

int _setjmp ( jmp_buf loc_info )

Description:
Set jump point (Std. UNIX; see AUP2 Sec. 9.6)

Headers:
setjmp.h

Returns:
0 if called directly, non-zero if from longjmp (no error return)

Parameters:

loc_info saved location information

void abort ( void )

Description:
Generate SIGABRT (Std. UNIX; see AUP2 Sec. 9.1.9)

Headers:
stdlib.h

Returns:
Does not return

int accept ( int socket_fd,

struct sockaddr * sa,

socklen_t * sa_len

)

Description:
Accept new connection on socket and create new socket (Std. UNIX; see AUP2 Sec. 8.1.2)

Headers:
sys/socket.h

Returns:
file descriptor or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

sa socket address or NULL

sa_len address length

Referenced by main(), run_server(), and ssi_wait_server().

int access ( const char * path,

int what

)

Description:
Determine accessibility of file (Std. UNIX; see AUP2 Sec. 3.8.1)
R_OK read permission
W_OK write permission
X_OK execute (search) permission
F_OK test for existence
Headers:
unistd.h

Returns:
0 if allowed or -1 if not or on error (sets errno)

Parameters:

path pathname

what permission to be tested

Referenced by access_test(), find_and_open_master(), and main().

int aio_cancel ( int fd,

struct aiocb * aiocbp

)

Description:
Cancel asynchronous I/O request (Std. UNIX; see AUP2 Sec. 3.9.5)

Headers:
aio.h

Returns:
result code or -1 on error (sets errno)

Parameters:

fd file descriptor

aiocbp control block

int aio_error ( const struct aiocb * aiocbp )

Description:
Retrieve error status for asynchronous I/O operation (Std. UNIX; see AUP2 Sec. 3.9.4)

Headers:
aio.h

Returns:
0, errno value, or EINPROGRESS (does not set errno)

Parameters:

aiocbp control block

Referenced by asynchronous(), and Ux::Aio::error().

int aio_fsync ( int op,

struct aiocb * aiocbp

)

Description:
Initiate buffer-cache flushing for one file (Std. UNIX; see AUP2 Sec. 3.9.6)

Headers:
aio.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

op O_SYNC or O_DSYNC

aiocbp control block

int aio_read ( struct aiocb * aiocbp )

Description:
Asynchronous read from file (Std. UNIX; see AUP2 Sec. 3.9.3)

Headers:
aio.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

aiocbp control block

Referenced by asynchronous().

ssize_t aio_return ( struct aiocb * aiocbp )

Description:
Retrieve return status of asynchronous I/O operation (Std. UNIX; see AUP2 Sec. 3.9.4)

Headers:
aio.h

Returns:
operation return value or -1 on error (sets errno)

Parameters:

aiocbp control block

int aio_suspend ( const struct aiocb *const list[],

int cbcnt,

const struct timespec * timeout

)

Description:
Wait for asynchronous I/O request (Std. UNIX; see AUP2 Sec. 3.9.7)

Headers:
aio.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

list array of control blocks

cbcnt number of elements in array

timeout max time to wait

Referenced by asynchronous().

int aio_write ( struct aiocb * aiocbp )

Description:
Asynchronous write to file (Std. UNIX; see AUP2 Sec. 3.9.3)

Headers:
aio.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

aiocbp control block

unsigned alarm ( unsigned secs )

Description:
Schedule an alarm signal (Std. UNIX; see AUP2 Sec. 9.7.1)

Headers:
unistd.h

Returns:
seconds left on previous alarm or zero if none (no error return)

Parameters:

secs seconds until signal

Referenced by Ux::Timer::alarm(), aup_sleep(), main(), posixsem_test(), and sysvsem_test().

char* asctime ( const struct tm * tmbuf )

Description:
Convert broken-down time to local-time string (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
string or NULL on error (errno not set)

Parameters:

tmbuf broken-down time

int atexit ( void(* fcn)(void) )

Description:
Register function to be called when process exits (Std. UNIX; see AUP2 Sec. 1.3.4)

Headers:
stdlib.h

Returns:
0 on success, non-zero on error (errno not set)

Parameters:

fcn function to be called

Referenced by ec_push(), and process_test().

int bind ( int socket_fd,

const struct sockaddr * sa,

socklen_t sa_len

)

Description:
Bind name to socket (Std. UNIX; see AUP2 Sec. 8.1.2)

Headers:
sys/socket.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

sa socket address

sa_len address length

Referenced by main(), run_client(), run_server(), and ssi_open().

speed_t cfgetispeed ( const struct termios * tp )

Description:
Get input speed from termios structure (Std. UNIX; see AUP2 Sec. 4.5.3)

Headers:
termios.h

Returns:
speed (no error return)

Parameters:

tp attributes

Referenced by Ux::Termios::cfgetispeed().

speed_t cfgetospeed ( const struct termios * tp )

Description:
Get output speed from termios structure (Std. UNIX; see AUP2 Sec. 4.5.3)

Headers:
termios.h

Returns:
speed (no error return)

Parameters:

tp attributes

Referenced by Ux::Termios::cfgetospeed().

int cfsetispeed ( struct termios * tp,

speed_t speed

)

Description:
Set input speed in termios structure (Std. UNIX; see AUP2 Sec. 4.5.3)

Headers:
termios.h

Returns:
0 on success or -1 on error (may set errno)

Parameters:

tp attributes

speed speed

int cfsetospeed ( struct termios * tp,

speed_t speed

)

Description:
Set output speed in termios structure (Std. UNIX; see AUP2 Sec. 4.5.3)

Headers:
termios.h

Returns:
0 on success or -1 on error (may set errno)

Parameters:

tp attributes

speed speed

int chdir ( const char * path )

Description:
Change current directory by path (Std. UNIX; see AUP2 Sec. 3.6.2)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

Referenced by builtin(), do_dir(), getcwdx(), main(), and process_test().

int chmod ( const char * path,

mode_t mode

)

Description:
Change mode of file by path (Std. UNIX; see AUP2 Sec. 3.7.1)

Headers:
sys/stat.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

mode new mode

int chown ( const char * path,

uid_t uid,

gid_t gid

)

Description:
Change owner and group of file by path (Std. UNIX; see AUP2 Sec. 3.7.2)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

uid new user ID

gid new group ID

int chroot ( const char * path )

Description:
Change root directory (Std. UNIX; see AUP2 Sec. 5.14)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path path name

Referenced by process_test().

clock_t clock ( void )

Description:
Get execution time (Std. UNIX; see AUP2 Sec. 1.7.2)

Headers:
time.h

Returns:
time in CLOCKS_PER_SEC or -1 on error (errno not set)

Referenced by Ux::RealtimeTimer::create(), getaddr(), Ux::Clock::getcpuclockid(), and main().

int clock_getcpuclockid ( pid_t pid,

clockid_t * clock_id

)

Description:
Get process CPU-time clock (Std. UNIX; see AUP2 Sec. 9.7.5)

Headers:
time.h

Returns:
0 on success or error number on error

Parameters:

pid process ID

clock_id returned clock ID

int clock_getres ( clockid_t clock_id,

struct timespec * res

)

Description:
Get clock resolution (Std. UNIX; see AUP2 Sec. 9.7.5)

Headers:
time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

clock_id clock ID

res resolution

int clock_gettime ( clockid_t clock_id,

struct timespec * tp

)

Description:
Get time from clock (Std. UNIX; see AUP2 Sec. 9.7.5)

Headers:
time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

clock_id clock ID (CLOCK_REALTIME, etc.)

tp time

int clock_nanosleep ( clockid_t clock_id,

int flags,

const struct timespec * nsecs,

struct timespec * remain

)

Description:
Suspend execution for nanoseconds or until signal (Std. UNIX; see AUP2 Sec. 9.7.5)

Headers:
time.h

Returns:
0 on success or error number on error

Parameters:

clock_id clock ID

flags TIMER_ABSTIME or zero

nsecs nanoseconds to sleep

remain remaining time

int clock_settime ( clockid_t clock_id,

const struct timespec * tp

)

Description:
Set clock (Std. UNIX; see AUP2 Sec. 9.7.5)

Headers:
time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

clock_id clock ID

tp time

int close ( int fd )

Description:
Close file descriptor (Std. UNIX; see AUP2 Sec. 2.11)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

Referenced by backward(), backward0(), backward2(), Bclose(), clients_close_all(), copy(), copy2(), copy2a(), do_dir(), edinvoke(), ev_close(), exec_redirected(), fcn(), fcntl_example(), file_ctime_test(), find_and_open_master(), fsort(), fsort0(), ftruncate_test(), getaddr(), getcwdx(), invoke(), junk(), lock(), main(), main1(), pcsync_end(), pipewrite(), pipewrite2(), pipewrite2bug(), process1(), process2(), pt_close_master(), pt_close_slave(), pt_open_master(), pt_open_slave(), pwrite_test(), readany_test(), readany_test2(), readany_test3(), redirect(), rmdir_test(), run_client(), run_server(), scatter(), setup_fdset(), showpginfo(), SimpleSemOpen(), smi_close_fifo(), smi_close_pshm(), smi_open_pshm(), smi_open_shm(), ssi_close(), ssi_close_fd(), synctest(), try6(), who_wc(), and who_wc2().

int closedir ( DIR * dirp )

Description:
Close directory (Std. UNIX; see AUP2 Sec. 3.6.1)

Headers:
dirent.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

dirp DIR pointer from opendir

Referenced by do_dir(), getcwdx(), readdir_r_test(), and readdir_test().

size_t confstr ( int name,

char * buf,

size_t len

)

Description:
Get configuration string (Std. UNIX; see AUP2 Sec. 1.5.7)

Headers:
unistd.h

Returns:
size of value or 0 on error (sets errno on error)

Parameters:

name option or limit name

buf returned string value

len size of buf

Referenced by main().

int connect ( int socket_fd,

const struct sockaddr * sa,

socklen_t sa_len

)

Description:
Connect socket (Std. UNIX; see AUP2 Sec. 8.1.2)

Headers:
sys/socket.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

sa socket address

sa_len address length

Referenced by main(), main1(), run_client(), and ssi_open().

int creat ( const char * path,

mode_t perms

)

Description:
Create or truncate a file for writing (Std. UNIX; see AUP2 Sec. 2.4.2)

Headers:
sys/stat.h , fcntl.h

Returns:
file descriptor or -1 on error (sets errno)

Parameters:

path pathname

perms permissions

Referenced by junk(), and main().

char* ctermid ( char * buf )

Description:
Get pathname for controlling terminal (Std. UNIX; see AUP2 Sec. 4.7)

Headers:
stdio.h

Returns:
pathname or empty string on error (errno not set)

Parameters:

buf buffer of size L_ctermid or NULL

char* ctime ( const time_t * t )

Description:
Convert time_t to local-time string (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
string or NULL on error (errno not set)

Parameters:

t time

Referenced by file_ctime_test(), and send_header_OK().

double difftime ( time_t time1,

time_t time0

)

Description:
Subtract two time_t values (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
time1 - time0 in seconds (no error return)

Parameters:

time1 time

time0 time

Referenced by Ux::TimeSec::diff(), Ux::Timet::difftime(), print_date(), and test_setblock().

int dup ( int fd )

Description:
Duplicate file descriptor (Std. UNIX; see AUP2 Sec. 6.3)

Headers:
unistd.h

Returns:
new file descriptor or -1 on error (sets errno)

Parameters:

fd file descriptor to duplicate

int dup2 ( int fd,

int fd2

)

Description:
Duplicate file descriptor (Std. UNIX; see AUP2 Sec. 6.3)

Headers:
unistd.h

Returns:
new file descriptor or -1 on error (sets errno)

Parameters:

fd file descriptor to duplicate

fd2 file descriptor to use

Referenced by edinvoke(), exec_redirected(), fsort(), fsort0(), pipewrite2(), pipewrite2bug(), redirect(), who_wc(), and who_wc2().

void endhostent ( void )

Description:
End host-database scan (Std. UNIX; see AUP2 Sec. 8.8.1)

Headers:
netdb.h

Referenced by hostdb().

void endnetent ( void )

Description:
End network-database scan (Std. UNIX; see AUP2 Sec. 8.8.2)

Headers:
netdb.h

Referenced by netdb().

void endprotoent ( void )

Description:
End protocol-database scan (Std. UNIX; see AUP2 Sec. 8.8.3)

Headers:
netdb.h

Referenced by main(), and protodb().

void endservent ( void )

Description:
End service-database scan (Std. UNIX; see AUP2 Sec. 8.8.4)

Headers:
netdb.h

Referenced by servdb().

int execl ( const char * path,

const char * arg0,

const char * arg1,

... ,

(char *)NULL

)

Description:
Execute file with argument list (Std. UNIX; see AUP2 Sec. 5.3)

Headers:
unistd.h

Returns:
-1 on error (sets errno)

Parameters:

path program pathname

arg0 first arg (file name)

arg1 second arg

Referenced by exectest(), and junk().

int execle ( const char * path,

const char * arg0,

const char * arg1,

... ,

(char *)NULL ,

char *const envv []

)

Description:
Execute file with argument list and environment (Std. UNIX; see AUP2 Sec. 5.3)

Headers:
unistd.h

Returns:
-1 on error (sets errno)

Parameters:

path program pathname

arg0 first arg (file name)

arg1 second arg

int execlp ( const char * file,

const char * arg0,

const char * arg1,

... ,

(char *)NULL

)

Description:
Execute file with argument list and PATH search (Std. UNIX; see AUP2 Sec. 5.3)

Headers:
unistd.h

Returns:
-1 on error (sets errno)

Parameters:

file program file name

arg0 first arg (file name)

arg1 second arg

Referenced by edinvoke(), fsort(), fsort0(), pipewrite(), pipewrite2(), pipewrite2bug(), process_test(), who_wc(), and who_wc2().

int execv ( const char * path,

char *const argv[]

)

Description:
Execute file with argument vector (Std. UNIX; see AUP2 Sec. 5.3)

Headers:
unistd.h

Returns:
-1 on error (sets errno)

Parameters:

path program pathname

argv argument vector

Referenced by exec_path().

int execve ( const char * path,

char *const argv[],

char *const envv[]

)

Description:
Execute file with argument vector and environment (Std. UNIX; see AUP2 Sec. 5.3)

Headers:
unistd.h

Returns:
-1 on error (sets errno)

Parameters:

path program pathname

argv argument vector

envv environment vector

int execvp ( const char * file,

char *const argv[]

)

Description:
Execute file with argument vector and PATH search (Std. UNIX; see AUP2 Sec. 5.3)

Headers:
unistd.h

Returns:
-1 on error (sets errno)

Parameters:

file program file name

argv argument vector

Referenced by exec_redirected(), execute3(), Ux::Process::execvpe(), invoke(), and main().

void exit ( int status )

Description:
Terminate process with clean-up (Std. UNIX; see AUP2 Sec. 5.7)

Headers:
stdlib.h

Returns:
Does not return

Parameters:

status exit status

Referenced by a1(), a3(), command(), display(), ec_mutex(), forkbuf(), get_and_incr_x(), init(), main(), main1(), process(), process1(), process2(), run_client(), run_server(), setup_fdset(), setup_posix_msg(), setup_posix_sem(), setup_process(), setup_signal(), setup_systemv_msg(), setup_systemv_sem(), socket_test_inet(), socket_test_unix(), sorter(), syserr(), tc_keystroke(), try1(), try2(), try3(), try4(), try5(), and try6().

int fchdir ( int fd )

Description:
Change current directory by file descriptor (Std. UNIX; see AUP2 Sec. 3.6.2)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

Referenced by do_dir(), and getcwdx().

int fchmod ( int fd,

mode_t mode

)

Description:
Change mode of file by file descriptor (Std. UNIX; see AUP2 Sec. 3.7.1)

Headers:
sys/stat.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

mode new mode

Referenced by pt_open_slave().

int fchown ( int fd,

uid_t uid,

gid_t gid

)

Description:
Change owner and group of file by file descriptor (Std. UNIX; see AUP2 Sec. 3.7.2)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

uid new user ID

gid new group ID

int fcntl ( int fd,

int op,

...

)

Description:
Control open file (Std. UNIX; see AUP2 Sec. 3.8.3)

Headers:
unistd.h , fcntl.h

Returns:
result depending on op or -1 on error (sets errno)

Parameters:

fd file descriptor

op operation

Referenced by fcntl_example(), fd_check(), init(), junk(), pipe_access_mode(), and setblock().

void FD_CLR ( int fd,

fd_set * fdset

)

Description:
Clear fd_set bit (Std. UNIX; see AUP2 Sec. 4.2.3)

Headers:
sys/select.h

Parameters:

fd file descriptor to clear

fdset fd_set

Referenced by run_server(), and ssi_close_fd().

int FD_ISSET ( int fd,

fd_set * fdset

)

Description:
Test fd_set bit (Std. UNIX; see AUP2 Sec. 4.2.3)

Headers:
sys/select.h

Returns:
1 if set or 0 if clear (no error return)

Parameters:

fd file descriptor to test

fdset fd_set

Referenced by main(), readany2(), readbuf(), run_server(), ssi_close(), ssi_wait_server(), and thread_fdset().

void FD_SET ( int fd,

fd_set * fdset

)

Description:
Set fd_set bit (Std. UNIX; see AUP2 Sec. 4.2.3)

Headers:
sys/select.h

Parameters:

fd file descriptor to set

fdset fd_set

Referenced by main(), pcsync_wait_for_parent(), pt_wait_master(), readany2(), readbuf(), run_server(), setup_fdset(), ssi_open(), and ssi_wait_server().

void FD_ZERO ( fd_set * fdset )

Description:
Clear entire fd_set (Std. UNIX; see AUP2 Sec. 4.2.3)

Headers:
sys/select.h

Parameters:

fdset fd_set to clear

Referenced by main(), pcsync_wait_for_parent(), pt_wait_master(), readany2(), readbuf(), run_server(), setup_fdset(), and ssi_open().

int fdatasync ( int fd )

Description:
Force buffer-cache flushing for one files data (Std. UNIX; see AUP2 Sec. 2.16.2)

Headers:
unistd.h

Returns:
0 or -1 on error (sets errno)

Parameters:

fd file descriptor

Referenced by main().

pid_t fork ( void )

Description:
Create new process (Std. UNIX; see AUP2 Sec. 5.5)

Headers:
unistd.h

Returns:
childs process-ID and 0 on success or -1 on error (sets errno)

Referenced by edinvoke(), execute3(), forkbuf(), forktest(), fsort(), fsort0(), invoke(), main(), pipewrite(), pipewrite2(), pipewrite2bug(), process_test(), run_client(), setup_fdset(), setup_posix_msg(), setup_posix_sem(), setup_process(), setup_signal(), setup_systemv_msg(), setup_systemv_sem(), socket_test_inet(), socket_test_unix(), try1(), try2(), try3(), try4(), try5(), try6(), who_wc(), and who_wc2().

long fpathconf ( int fd,

int name

)

Description:
Get system option or limit by file descriptor (Std. UNIX; see AUP2 Sec. 1.5.6)

Headers:
unistd.h

Returns:
option/limit value or -1 (sets errno on error)

Parameters:

fd file descriptor

name option or limit name

Referenced by fpathconf_test(), and tc_setraw().

void freeaddrinfo ( struct addrinfo * infop )

Description:
Free socket-address information (Std. UNIX; see AUP2 Sec. 8.2.6)

Headers:
sys/socket.h , netdb.h

Parameters:

infop list to free

Referenced by make_sockaddr().

int fstat ( int fd,

struct stat * buf

)

Description:
Get file info by file descriptor (Std. UNIX; see AUP2 Sec. 3.5.1)

Headers:
sys/stat.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

buf returned information

Referenced by check_parent(), and file_ctime_test().

int fstatvfs ( int fd,

struct statvfs * buf

)

Description:
Get file system information by file descriptor (Std. UNIX; see AUP2 Sec. 3.2.3)

Headers:
sys/statvfs.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

buf returned info

int fsync ( int fd )

Description:
Schedule or force buffer-cache flushing for one file (Std. UNIX; see AUP2 Sec. 2.16.2)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

Referenced by main().

key_t ftok ( const char * path,

int id

)

Description:
Generate System V IPC key (Std. UNIX; see AUP2 Sec. 7.4.2)

Headers:
sys/ipc.h

Returns:
key on success or -1 on error (sets errno)

Parameters:

path pathname of existing file

id desired key number

Referenced by getaddr(), main(), setup_systemv_msg(), setup_systemv_sem(), SimpleSemOpen(), SimpleSemRemove(), smi_open_shm(), sysvmsg_test(), sysvsem_test(), and sysvshm_test().

int ftruncate ( int fd,

off_t length

)

Description:
Truncate or stretch file by file descriptor (Std. UNIX; see AUP2 Sec. 2.17)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

length new length

Referenced by ftruncate_test(), main(), and smi_open_pshm().

const char* gai_strerror ( int code )

Description:
Get error-code description (Std. UNIX; see AUP2 Sec. 8.2.6)

Headers:
netdb.h

Returns:
string (no error return)

Parameters:

code error code

Referenced by a3(), syserrmsgline(), syserrmsgtype(), and Ux::Error::what().

int getaddrinfo ( const char * nodename,

const char * servname,

const struct addrinfo * hint,

struct addrinfo ** infop

)

Description:
Get socket-address information (Std. UNIX; see AUP2 Sec. 8.2.6)

Headers:
sys/socket.h , netdb.h

Returns:
0 on success or error number on error (errno not set)

Parameters:

nodename node name

servname service name

hint hint

infop returned info as linked list

Referenced by a1(), a3(), main(), and make_sockaddr().

char* getcwd ( char * buf,

size_t bufsize

)

Description:
Get current directory pathname (Std. UNIX; see AUP2 Sec. 3.4.2)

Headers:
unistd.h

Returns:
pathname or NULL on error (sets errno)

Parameters:

buf returned pathname

bufsize size of buf

Referenced by get_cwd(), main(), and process_test().

struct tm* getdate ( const char * s )

Description:
Convert string to broken-down time with rules (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
broken-down time or NULL on error (sets getdate_err)

Parameters:

s string to convert

gid_t getegid ( void )

Description:
Get effective group ID (Std. UNIX; see AUP2 Sec. 5.11)

Headers:
unistd.h

Returns:
group ID (no error return)

Referenced by Ux::Process::getegid(), and main().

char* getenv ( const char * var )

Description:
Get value of environment variable (Std. UNIX; see AUP2 Sec. 5.2)

Headers:
stdlib.h

Returns:
value or NULL if not found (errno not set)

Parameters:

var variable to find

Referenced by builtin(), execvp2(), Ux::Process::getenv(), and process_env_test().

uid_t geteuid ( void )

Description:
Get effective user ID (Std. UNIX; see AUP2 Sec. 5.11)

Headers:
unistd.h

Returns:
user ID (no error return)

Referenced by Ux::Process::geteuid(), and main().

gid_t getgid ( void )

Description:
Get real group ID (Std. UNIX; see AUP2 Sec. 5.11)

Headers:
unistd.h

Returns:
group ID (no error return)

Referenced by Ux::Process::getgid(), and main().

struct group* getgrgid ( gid_t gid )

Description:
Get group-file entry (Std. UNIX; see AUP2 Sec. 3.5.2)

Headers:
grp.h

Returns:
pointer to structure or NULL on error (sets errno)

Parameters:

gid group ID

Referenced by Ux::System::getgrgid(), main(), and print_group().

struct hostent* gethostbyaddr ( const void * addr,

socklen_t len,

int family

)

Description:
Lookup host by address (Std. UNIX; see AUP2 Sec. 8.8.1)

Headers:
netdb.h

Returns:
pointer to hostent or NULL on error (sets h_errno)

Parameters:

addr IP address

len length of address

family family (called type in SUS)

Referenced by gethostbyaddr_ex().

struct hostent* gethostbyname ( const char * nodename )

Description:
Lookup host by name (Std. UNIX; see AUP2 Sec. 8.8.1)

Headers:
netdb.h

Returns:
pointer to hostent or NULL on error (sets h_errno)

Parameters:

nodename node name

Referenced by gethostbyname_ex().

struct hostent* gethostent ( void )

Description:
Get next host-database entry (Std. UNIX; see AUP2 Sec. 8.8.1)

Headers:
netdb.h

Returns:
next entry or NULL on end of database (errno not set)

Referenced by Ux::Netdb::gethostent(), and hostdb().

long gethostid ( void )

Description:
Get identifier for local host (Std. UNIX; see AUP2 Sec. 8.8.1)

Headers:
unistd.h

Returns:
identifier (no error return)

Referenced by Ux::System::gethostid(), and main().

int gethostname ( char * name,

size_t namelen

)

Description:
Get name of host (Std. UNIX; see AUP2 Sec. 8.2.7)

Headers:
unistd.h

Returns:
0 on success or -1 on error (errno not set)

Parameters:

name returned name

namelen size of name buffer

Referenced by main().

int getitimer ( int which,

struct itimerval * val

)

Description:
Get value of interval timer (Std. UNIX; see AUP2 Sec. 9.7.4)

Headers:
sys/time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

which timer to get

val returned value

char* getlogin ( void )

Description:
Get login name (Std. UNIX; see AUP2 Sec. 3.5.2)

Headers:
unistd.h

Returns:
name or NULL on error (sets errno)

int getnameinfo ( const struct sockaddr * sa,

socklen_t sa_len,

char * nodename,

socklen_t nodelen,

char * servname,

socklen_t servlen,

unsigned flags

)

Description:
Get name information (Std. UNIX; see AUP2 Sec. 8.8.1)

Headers:
sys/socket.h , netdb.h

Returns:
0 on success or error number on error

Parameters:

sa socket address

sa_len socket-address length

nodename node name

nodelen node-name buffer length

servname service name

servlen service-name buffer length

flags flags

Referenced by getnameinfo_ex().

struct netent* getnetbyaddr ( uint32_t net,

int type

)

Description:
Lookup network by number (Std. UNIX; see AUP2 Sec. 8.8.2)

Headers:
netdb.h

Returns:
pointer to netent or NULL if not found (errno not set)

Parameters:

net network number (to match n_net member)

type family (to match n_addrtype member)

Referenced by Ux::Netdb::getnetbyaddr().

struct netent* getnetbyname ( const char * name )

Description:
Lookup network by name (Std. UNIX; see AUP2 Sec. 8.8.2)

Headers:
netdb.h

Returns:
pointer to netent or NULL if not found (errno not set)

Parameters:

name network name (to match n_name member)

Referenced by Ux::Netdb::getnetbyname().

struct netent* getnetent ( void )

Description:
Get network-database entry (Std. UNIX; see AUP2 Sec. 8.8.2)

Headers:
netdb.h

Returns:
pointer to netent or NULL end of database (errno not set)

Referenced by Ux::Netdb::getnetent(), and netdb().

int getpeername ( int socket_fd,

struct sockaddr * sa,

socklen_t * sa_len

)

Description:
Get socket address of connected socket (Std. UNIX; see AUP2 Sec. 8.9.2)

Headers:
sys/socket.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

sa socket address

sa_len address length

pid_t getpgid ( pid_t pid )

Description:
Get process-group ID (Std. UNIX; see AUP2 Sec. 4.3.3)

Headers:
unistd.h

Returns:
process-group ID or -1 on error (sets errno)

Parameters:

pid process ID or 0 for calling process

Referenced by showpginfo().

pid_t getpid ( void )

Description:
Get process ID (Std. UNIX; see AUP2 Sec. 5.13)

Headers:
unistd.h

Returns:
process ID (no error return)

Referenced by Ux::Process::getpid(), gp(), logfmt(), main(), msg_check(), run_client(), setup_fdset(), setup_posix_msg(), setup_posix_sem(), setup_signal(), setup_systemv_msg(), setup_systemv_sem(), showpginfo(), smi_close_fifo(), smi_open_fifo(), smi_open_mq(), smi_open_pshm(), smi_send_getaddr_pshm(), smi_send_release_fifo(), and testlock().

pid_t getppid ( void )

Description:
Get parent process ID (Std. UNIX; see AUP2 Sec. 5.13)

Headers:
unistd.h

Returns:
parent process ID (no error return)

Referenced by Ux::Process::getppid(), setup_signal(), and showpginfo().

struct protoent* getprotobyname ( const char * name )

Description:
Lookup protocol by name (Std. UNIX; see AUP2 Sec. 8.8.3)

Headers:
netdb.h

Returns:
pointer to protoent or NULL if not found (errno not set)

Parameters:

name protocol name

Referenced by Ux::Netdb::getprotobyname().

struct protoent* getprotobynumber ( int proto )

Description:
Lookup protocol by number (Std. UNIX; see AUP2 Sec. 8.8.3)

Headers:
netdb.h

Returns:
pointer to protoent or NULL if not found (errno not set)

Parameters:

proto protocol number

Referenced by Ux::Netdb::getprotobynumber().

struct protoent* getprotoent ( void )

Description:
Get protocol-database entry (Std. UNIX; see AUP2 Sec. 8.8.3)

Headers:
netdb.h

Returns:
pointer to protoent or NULL end of database (errno not set)

Referenced by Ux::Netdb::getprotoent(), main(), and protodb().

struct passwd* getpwuid ( uid_t uid )

Description:
Get password-file entry (Std. UNIX; see AUP2 Sec. 3.5.2)

Headers:
pwd.h

Returns:
pointer to structure or NULL on error (sets errno)

Parameters:

uid user ID

Referenced by Ux::System::getpwuid(), main(), and print_owner().

int getrlimit ( int resource,

struct rlimit * rlp

)

Description:
Get resource limits (Std. UNIX; see AUP2 Sec. 5.16)

Headers:
sys/resource.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

resource resource

rlp returned limits

Referenced by main(), process_test(), and showlimit().

int getrusage ( int who,

struct rusage * r_usage

)

Description:
Get resource usage (Std. UNIX; see AUP2 Sec. 5.16)

Headers:
sys/resource.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

who RUSAGE_SELF or RUSAGE_CHILDREN

r_usage returned usage information

Referenced by process_test().

struct servent* getservbyname ( const char * name,

const char * proto

)

Description:
Lookup service by name (Std. UNIX; see AUP2 Sec. 8.8.4)

Headers:
netdb.h

Returns:
pointer to protoent or NULL if not found (errno not set)

Referenced by Ux::Netdb::getservbyname().

struct servent* getservbyport ( int port,

const char * proto

)

Description:
Lookup service by port (Std. UNIX; see AUP2 Sec. 8.8.4)

Headers:
netdb.h

Returns:
pointer to protoent or NULL if not found (errno not set)

Referenced by Ux::Netdb::getservbyport().

struct servent* getservent ( void )

Description:
Get service-database entry (Std. UNIX; see AUP2 Sec. 8.8.4)

Headers:
netdb.h

Returns:
pointer to servent or NULL end of database (errno not set)

Referenced by Ux::Netdb::getservent(), and servdb().

pid_t getsid ( pid_t pid )

Description:
Get session ID (Std. UNIX; see AUP2 Sec. 4.3.2)

Headers:
unistd.h

Returns:
session ID or -1 on error (sets errno)

Parameters:

pid process ID or 0 for calling process

Referenced by showpginfo().

int getsockname ( int socket_fd,

struct sockaddr * sa,

socklen_t * sa_len

)

Description:
Get socket address (Std. UNIX; see AUP2 Sec. 8.9.2)

Headers:
sys/socket.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

sa socket address

sa_len address length

int getsockopt ( int socket,

int level,

int option,

const void * value,

socklen_t * value_len

)

Description:
Get the socket options (Std. UNIX; see AUP2 Sec. 8.3)

Headers:
sys/socket.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

socket socket

level level to be accessed

option option to set

value value to set

value_len length of value

Referenced by show().

int gettimeofday ( struct timeval * tvalbuf,

void * dummy

)

Description:
Get current date and time as timeval (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
sys/time.h

Returns:
0 on success or -1 (maybe) on error (may set errno)

Parameters:

tvalbuf returned time

dummy always NULL

Referenced by get_rel_time(), and main().

uid_t getuid ( void )

Description:
Get real user ID (Std. UNIX; see AUP2 Sec. 5.11)

Headers:
unistd.h

Returns:
user ID (no error return)

Referenced by Ux::Process::getuid(), and main().

struct tm* gmtime ( const time_t * t )

Description:
Convert time_t to UTC broken-down time (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
broken-down time (no error return)

Parameters:

t time

int grantpt ( int fd )

Description:
Get access to slave side of pty (Std. UNIX; see AUP2 Sec. 4.10.1)

Headers:
stdlib.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

Referenced by pt_open_master().

uint32_t htonl ( uint32_t hostnum )

Description:
Convert 32-bit value from host to network byte order (Std. UNIX; see AUP2 Sec. 8.1.4)

Headers:
arpa/inet.h

Returns:
number in network byte order (no error return)

Parameters:

hostnum 32-bit number in host byte order

Referenced by Ux::Netdb::htonl(), main1(), and msg_check().

uint16_t htons ( uint16_t hostnum )

Description:
Convert 16-bit value from host to network byte order (Std. UNIX; see AUP2 Sec. 8.1.4)

Headers:
arpa/inet.h

Returns:
number in network byte order (no error return)

Parameters:

hostnum 16-bit number in host byte order

Referenced by getnameinfo_ex(), Ux::Netdb::htons(), main(), and main1().

void if_freenameindex ( struct if_nameindex * ptr )

Description:
Free array allocated by if_nameindex (Std. UNIX; see AUP2 Sec. 8.8.5)

Headers:
net/if.h

Parameters:

ptr pointer to array

Referenced by ifdb().

char* if_indextoname ( unsigned ifindex,

char * ifname

)

Description:
Map network interface index to name (Std. UNIX; see AUP2 Sec. 8.8.5)

Headers:
net/if.h

Returns:
name or NULL on error (sets errno)

Parameters:

ifindex interface index

ifname interface name

struct if_nameindex* if_nameindex ( void )

Description:
Get all network interface names and indexes (Std. UNIX; see AUP2 Sec. 8.8.5)

Headers:
net/if.h

Returns:
array or NULL on error (sets errno)

Referenced by ifdb().

unsigned if_nametoindex ( const char * ifname )

Description:
Map network interface name to index (Std. UNIX; see AUP2 Sec. 8.8.5)

Headers:
net/if.h

Returns:
index or 0 on error (errno not set)

Parameters:

ifname interface name

in_addr_t inet_addr ( const char * cp )

Description:
Convert dotted IPv4 address string to integer (Std. UNIX; see AUP2 Sec. 8.2.3)

Headers:
arpa/inet.h

Returns:
IP address or (in_addr_t)-1 on error (errno not set)

Parameters:

cp dotted IP address

Referenced by gethostbyaddr_ex(), getnameinfo_ex(), and main().

char* inet_ntoa ( struct in_addr in )

Description:
Convert integer IPv4 address to dotted string (Std. UNIX; see AUP2 Sec. 8.2.3)

Headers:
arpa/inet.h

Returns:
string (no error return)

Parameters:

in integer address

Referenced by display_hostent(), and main().

const char* inet_ntop ( int domain,

const void * src,

char * dst,

socklen_t dst_len

)

Description:
Convert IPv4 or IPv6 binary addresses to string (Std. UNIX; see AUP2 Sec. 8.9.5)

Headers:
arpa/inet.h

Returns:
string or NULL on error (sets errno)

Parameters:

domain AF_INET or AF_INET6

src pointer to binary address (input)

dst string (output)

dst_len length of dst buffer

Referenced by cvt().

int inet_pton ( int domain,

const char * src,

void * dst

)

Description:
Convert IPv4 or IPv6 string addresses to binary (Std. UNIX; see AUP2 Sec. 8.9.5)

Headers:
arpa/inet.h

Returns:
1 on success, 0 on invalid string, or -1 on error (sets errno)

Parameters:

domain AF_INET or AF_INET6

src string (input)

dst buffer for binary address (output)

Referenced by cvt().

int ioctl ( int fd,

int req,

...

)

Description:
Control a character device (Std. UNIX; see AUP2 Sec. 4.4)

Headers:
...

Returns:
-1 on error (sets errno); some other value on success

Parameters:

fd file descriptor

req request

Referenced by pt_open_slave().

int isatty ( int fd )

Description:
Test for a terminal (Std. UNIX; see AUP2 Sec. 4.7)

Headers:
unistd.h

Returns:
1 if a terminal and 0 if not (may set errno on 0 return)

Parameters:

fd file descriptor

Referenced by Ux::Terminal::isatty().

int kill ( pid_t pid,

int signum

)

Description:
Generate signal for processes (Std. UNIX; see AUP2 Sec. 9.1.9)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

pid process ID or other specification

signum signal

Referenced by main(), pcsync_unblock_children(), setup_signal(), try2(), try3(), try4(), and try5().

int killpg ( pid_t pgrp,

int signum

)

Description:
Generate signal for process group (Std. UNIX; see AUP2 Sec. 9.1.9)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

pgrp process-group ID

signum signal

int lchown ( const char * path,

uid_t uid,

gid_t gid

)

Description:
Change owner and group of symbolic link by path (Std. UNIX; see AUP2 Sec. 3.7.2)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

uid user ID

gid group ID

int link ( const char * oldpath,

const char * newpath

)

Description:
Create hard link (Std. UNIX; see AUP2 Sec. 3.3.1)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

oldpath old pathname

newpath new pathname

Referenced by add_link(), display(), and main().

int lio_listio ( int mode,

struct aiocb *const list[],

int cbcnt,

struct sigevent * sig

)

Description:
List-directed I/O (Std. UNIX; see AUP2 Sec. 3.9.9)

Headers:
aio.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

mode LIO_WAIT or LIO_NOWAIT

list array of control blocks

cbcnt number of elements in array

sig NULL or signal to generate

int listen ( int socket_fd,

int backlog

)

Description:
Mark socket for accepting and set queue limit (Std. UNIX; see AUP2 Sec. 8.1.2)

Headers:
sys/socket.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

backlog maximum connection queue length

Referenced by main(), run_server(), and ssi_open().

struct tm* localtime ( const time_t * t )

Description:
Convert time_t to local broken-down time (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
broken-down time (no error return)

Parameters:

t time

Referenced by logfmt(), and print_date().

int lockf ( int fd,

int op,

off_t len

)

Description:
Lock section of file (Std. UNIX; see AUP2 Sec. 7.11.3)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

op operation

len length of section

Referenced by main(), process2(), and store().

void longjmp ( jmp_buf loc_info,

int val

)

Description:
Jump to jump point (Std. UNIX; see AUP2 Sec. 9.6)

Headers:
setjmp.h

Parameters:

loc_info saved location information

val value for setjmp to return

Referenced by fcn2().

off_t lseek ( int fd,

off_t pos,

int whence

)

Description:
Set and get file offset (Std. UNIX; see AUP2 Sec. 2.13)

Headers:
unistd.h

Returns:
new file offset or -1 on error (sets errno)

Parameters:

fd file descriptor

pos position

whence interpretation

Referenced by backward(), backward0(), backward2(), file_ctime_test(), junk(), main(), process2(), pwrite_test(), scatter(), and store().

int lstat ( const char * path,

struct stat * buf

)

Description:
Get file info by path without following symbolic link (Std. UNIX; see AUP2 Sec. 3.5.1)

Headers:
sys/stat.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

buf returned information

Referenced by check_parent(), do_entry(), getcwdx(), ls_one(), main(), and runtest().

int mkdir ( const char * path,

mode_t perms

)

Description:
Make directory (Std. UNIX; see AUP2 Sec. 3.6.3)

Headers:
sys/stat.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

perms permissions

Referenced by main(), and rmdir_test().

int mkfifo ( const char * path,

mode_t perms

)

Description:
Make a FIFO (Std. UNIX; see AUP2 Sec. 7.2.1)

Headers:
sys/stat.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

perms permissions

Referenced by main(), and smi_open_fifo().

int mknod ( const char * path,

mode_t perms,

dev_t dev

)

Description:
Make file (Std. UNIX; see AUP2 Sec. 3.8.2)

Headers:
sys/stat.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

perms mode

dev device-ID

int mkstemp ( char * template )

Description:
Create and open file with unique name (Std. UNIX; see AUP2 Sec. 2.7)

Headers:
stdlib.h

Returns:
open file descriptor or -1 on error (may not set errno)

Parameters:

template template for file name

Referenced by junk().

time_t mktime ( struct tm * tmbuf )

Description:
Convert local broken-down time to time_t (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
time or -1 on error (errno not set)

Parameters:

tmbuf broken-down time

void* mmap ( void * addr,

size_t len,

int prot,

int flags,

int fd,

off_t off

)

Description:
Map pages of memory (Std. UNIX; see AUP2 Sec. 7.14.1)

Headers:
sys/mman.h

Returns:
pointer to segment or MAP_FAILED on error (sets errno)

Parameters:

addr desired address or NULL

len length of segment

prot protection (see below)

flags flags

fd file descriptor

off offset in file or shared-memory object

Referenced by get_client(), and smi_open_pshm().

int mount ( const char * source,

const char * target,

const char * type,

unsigned long flags,

const void * data

)

Description:
Mount file system (non-standard) (Std. UNIX; see AUP2 Sec. 3.2.4)

Headers:
sys/mount.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

source device

target directory

type type (e.g., ext2)

flags mount flags (e.g., MS_RDONLY)

data file-system-dependent data

int mq_close ( mqd_t mqd )

Description:
Close message queue (Std. UNIX; see AUP2 Sec. 7.7.1)

Headers:
mqueue.h

Returns:
zero on success or -1 on error (sets errno)

Parameters:

mqd message-queue descriptor

int mq_getattr ( mqd_t mqd,

struct mq_attr * attr

)

Description:
Get message-queue attributes (Std. UNIX; see AUP2 Sec. 7.7.1)

Headers:
mqueue.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

mqd message-queue descriptor

attr attributes

int mq_notify ( mqd_t mqd,

const struct sigevent * ep

)

Description:
Register or unregister for message notification (Std. UNIX; see AUP2 Sec. 7.7.1)

Headers:
mqueue.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

mqd message-queue descriptor

ep notification

mqd_t mq_open ( const char * name,

int flags

)

Description:
Open message-queue (Std. UNIX; see AUP2 Sec. 7.7.1)
mqd_t mq_open(
const char *name, POSIX IPC name
int flags, flags (including O_CREAT)
mode_t perms, permissions
struct mq_attr *attr attributes (or NULL)
);
Headers:
mqueue.h

Returns:
message-queue descriptor or -1 on error (sets errno)

Parameters:

name POSIX IPC name

flags flags (excluding O_CREAT)

ssize_t mq_receive ( mqd_t mqd,

char * msg,

size_t msgsize,

unsigned * priorityp

)

Description:
Receive message (Std. UNIX; see AUP2 Sec. 7.7.1)

Headers:
mqueue.h

Returns:
size of message or -1 on error (sets errno)

Parameters:

mqd message-queue descriptor

msg message buffer

msgsize size of message buffer

priorityp returned priority or NULL

int mq_send ( mqd_t mqd,

const char * msg,

size_t msgsize,

unsigned priority

)

Description:
Send message (Std. UNIX; see AUP2 Sec. 7.7.1)

Headers:
mqueue.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

mqd message-queue descriptor

msg message

msgsize size of message

priority priority

int mq_setattr ( mqd_t mqd,

const struct mq_attr * attr,

struct mq_attr * oldattr

)

Description:
Set message queue attributes (REALTIME) (Std. UNIX; see AUP2 Sec. 7.7.1)

Headers:
mqueue.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

mqd message-queue descriptor

attr new attributes

oldattr old attributes

ssize_t mq_timedreceive ( mqd_t mqd,

char * msg,

size_t msgsize,

unsigned *priorityp const struct timespec * tmout

)

Description:
Receive message with timeout (Std. UNIX; see AUP2 Sec. 7.7.1)

Headers:
mqueue.h , mqueue.h , time.h

Returns:
size of message or -1 on error (sets errno)

Parameters:

mqd message-queue descriptor

msg message buffer

msgsize size of message buffer

tmout returned priority or NULL timeout

int mq_timedsend ( mqd_t mqd,

const char * msg,

size_t msgsize,

unsigned priority const struct timespec * tmout

)

Description:
Send message with timeout (Std. UNIX; see AUP2 Sec. 7.7.1)

Headers:
mqueue.h , mqueue.h , time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

mqd message-queue descriptor

msg message

msgsize size of message

tmout priority timeout

int mq_unlink ( const char * name )

Description:
Remove message queue (Std. UNIX; see AUP2 Sec. 7.7.1)

Headers:
mqueue.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

name POSIX IPC name

int msgctl ( int msqid,

int cmd,

struct msqid_ds * data

)

Description:
Control message queue (Std. UNIX; see AUP2 Sec. 7.5.1)

Headers:
sys/msg.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

msqid identifier

cmd command

data data for command

Referenced by main(), and setup_systemv_msg().

int msgget ( key_t key,

int flags

)

Description:
Get message-queue identifier (Std. UNIX; see AUP2 Sec. 7.5.1)

Headers:
sys/msg.h

Returns:
identifier or -1 on error (sets errno)

Parameters:

key key

flags creation flags

Referenced by main(), and setup_systemv_msg().

ssize_t msgrcv ( int msqid,

const void * msgp,

size_t mtextsize,

long msgtype,

int flags

)

Description:
Receive message (Std. UNIX; see AUP2 Sec. 7.5.1)

Headers:
sys/msg.h

Returns:
number of bytes placed in mtext or -1 on error (sets errno)

Parameters:

msqid identifier

msgp message

mtextsize size of mtext buffer

msgtype message type requested

flags flags

Referenced by thread_svmsg().

int msgsnd ( int msqid,

const void * msgp,

size_t msgsize,

int flags

)

Description:
Send message (Std. UNIX; see AUP2 Sec. 7.5.1)

Headers:
sys/msg.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

msqid identifier

msgp message

msgsize size of message

flags flags

Referenced by main(), and setup_systemv_msg().

int munmap ( void * addr,

size_t len

)

Description:
Unmap pages of memory (Std. UNIX; see AUP2 Sec. 7.14.1)

Headers:
sys/mman.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

addr pointer to segment

len length of segment

Referenced by smi_close_pshm().

int nanosleep ( const struct timespec * nsecs,

struct timespec * remain

)

Description:
Suspend execution for nanoseconds or until signal (Std. UNIX; see AUP2 Sec. 9.7.3)

Headers:
time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

nsecs nanoseconds to sleep

remain remaining time

Referenced by thread_heartbeat().

int nice ( int incr )

Description:
Change nice value (Std. UNIX; see AUP2 Sec. 5.15)

Headers:
unistd.h

Returns:
old nice value - NZERO or -1 on error (sets errno)

Parameters:

incr increment

Referenced by main(), and process_test().

uint32_t ntohl ( uint32_t netnum )

Description:
Convert 32-bit value from network to host byte order (Std. UNIX; see AUP2 Sec. 8.1.4)

Headers:
arpa/inet.h

Returns:
number in host byte order (no error return)

Parameters:

netnum 32-bit number in network byte order

Referenced by msg_check(), and Ux::Netdb::ntohl().

uint16_t ntohs ( uint16_t netnum )

Description:
Convert 16-bit value from network to host byte order (Std. UNIX; see AUP2 Sec. 8.1.4)

Headers:
arpa/inet.h

Returns:
number in host byte order (no error return)

Parameters:

netnum 16-bit number in network byte order

Referenced by main(), and Ux::Netdb::ntohs().

int open ( const char * path,

int flags,

mode_t perms

)

Description:
Open or create a file (Std. UNIX; see AUP2 Sec. 2.4)

Headers:
sys/stat.h , fcntl.h

Returns:
file descriptor or -1 on error (sets errno)

Parameters:

path pathname

flags flags

perms permissions (when creating)

Referenced by asynchronous(), backward(), backward0(), backward2(), Bopen_internal(), buildfile(), copy(), copy2(), copy2a(), dir_read_test(), do_dir(), ev_creat(), ev_open(), fcn(), fcntl_example(), file_ctime_test(), find_and_open_master(), fsort(), fsort0(), ftruncate_test(), getaddr(), getcwdx(), gp(), junk(), lock(), main(), process1(), process2(), pt_open_slave(), pwrite_test(), readany_test(), readany_test2(), readany_test3(), redirect(), rmdir_test(), scatter(), showpginfo(), SimpleSemOpen(), smi_open_fifo(), smi_open_shm(), smi_receive_getaddr_fifo(), synchronous(), synctest(), and temp_open().

DIR* opendir ( const char * path )

Description:
Open directory (Std. UNIX; see AUP2 Sec. 3.6.1)

Headers:
dirent.h

Returns:
DIR pointer or NULL on error (sets errno)

Parameters:

path directory pathname

Referenced by do_dir(), getcwdx(), readdir_r_test(), and readdir_test().

long pathconf ( const char * path,

int name

)

Description:
Get system option or limit by path (Std. UNIX; see AUP2 Sec. 1.5.6)

Headers:
unistd.h

Returns:
option/limit value or -1 (sets errno on error)

Parameters:

path pathname

name option or limit name

Referenced by get_max_pathname(), main(), option_async_io(), option_sync_io(), and readdir_r_test().

int pause ( void )

Description:
Wait for signal (Std. UNIX; see AUP2 Sec. 9.2.1)

Headers:
unistd.h

Returns:
-1 on error (sets errno)

Referenced by aup_sleep(), main(), process_test(), try2(), and try3().

int pipe ( int pfd[2] )

Description:
Create pipe (Std. UNIX; see AUP2 Sec. 6.2.1)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

pfd file descriptors

Referenced by command(), edinvoke(), fpathconf_test(), fsort(), fsort0(), pcsync_init(), pipe_access_mode(), pipe_test(), pipetest(), pipewrite(), pipewrite2(), pipewrite2bug(), setup_fdset(), socket_test_inet(), socket_test_unix(), try6(), who_wc(), and who_wc2().

int poll ( struct pollfd fdinfo[],

nfds_t nfds,

int timeout

)

Calls poll.
Parameters:

fdinfo info on file descriptors to be tested

nfds number of elements in fdinfo array

timeout time-out (milliseconds)

Definition at line 276 of file uxfile.cpp.
References errno.
Referenced by readany3().

int posix_openpt ( int oflag )

Description:
Open pty (Std. UNIX; see AUP2 Sec. 4.10.1)

Headers:
stdlib.h , fcntl.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

oflag O_RDWR optionally ORed with O_NOCTTY

Referenced by find_and_open_master().

ssize_t pread ( int fd,

void * buf,

size_t nbytes off_t offset

)

Description:
Read from file descriptor at offset (Std. UNIX; see AUP2 Sec. 2.14)

Headers:
unistd.h

Returns:
number of bytes read or -1 on error (sets errno)

Parameters:

fd file descriptor

buf address to receive data

offset amount to read where to read

Referenced by backward2(), and readrec().

int pselect ( int nfds,

fd_set * readset,

fd_set * writeset,

fd_set * errorset,

const struct timespec * timeout,

const sigset_t * sigmask

)

Calls pselect.
Parameters:

nfds highest fd + 1

readset read set or NULL

writeset write set or NULL

errorset error set or NULL

timeout time-out (nanoseconds) or NULL

sigmask signal mask

Definition at line 288 of file uxfile.cpp.
References errno.

int pthread_cancel ( pthread_t thread_id )

Description:
Cancel thread (Std. UNIX; see AUP2 Sec. 5.17.5)

Headers:
pthread.h

Returns:
0 on success, error number on failure

Parameters:

thread_id ID of thread to cancel

Referenced by main(), and uem_unregister().

void pthread_cleanup_pop ( int execute )

Description:
Uninstall cleanup handler (Std. UNIX; see AUP2 Sec. 5.17.5)

Headers:
pthread.h

Parameters:

execute execute handler?

Referenced by thread_fdset(), thread_func(), thread_heartbeat(), thread_process(), thread_signal(), thread_svmsg(), and thread_svsem().

void pthread_cleanup_push ( void(* handler)(void *),

void * arg

)

Description:
Install cleanup handler (Std. UNIX; see AUP2 Sec. 5.17.5)

Headers:
pthread.h

Parameters:

handler pointer to cleanup-handler function

arg data to pass to function

Referenced by thread_fdset(), thread_func(), thread_heartbeat(), thread_process(), thread_signal(), thread_svmsg(), and thread_svsem().

int pthread_cond_signal ( pthread_cond_t * cond )

Description:
Signal condition (Std. UNIX; see AUP2 Sec. 5.17.4)

Headers:
pthread.h

Returns:
0 on success, error number on failure

Parameters:

cond condition variable

Referenced by main(), and queue_event().

int pthread_cond_wait ( pthread_cond_t * cond,

pthread_mutex_t * mutex

)

Description:
Wait for condition (Std. UNIX; see AUP2 Sec. 5.17.4)

Headers:
pthread.h

Returns:
0 on success, error number on failure

Parameters:

cond condition variable

Referenced by thread_func(), and uem_wait().

int pthread_create ( pthread_t * thread_id,

const pthread_attr_t * attr,

void *(* start_fcn)(void *),

void * arg

)

Description:
Create a thread (Std. UNIX; see AUP2 Sec. 5.17.1)

Headers:
pthread.h

Returns:
0 on success, error number on failure

Parameters:

thread_id new threads ID

attr attributes (or NULL)

start_fcn starting function

arg arg to starting function

Referenced by handle_signals(), main(), uem_register_fdset(), uem_register_heartbeat(), uem_register_process(), uem_register_signal(), uem_register_svmsg(), and uem_register_svsem().

int pthread_join ( pthread_t thread_id,

void ** status_ptr

)

Description:
Wait for thread to terminate (Std. UNIX; see AUP2 Sec. 5.17.2)

Headers:
pthread.h

Returns:
0 on success, error number on failure

Parameters:

thread_id ID of thread to join

status_ptr NULL or returned exit status

Referenced by main().

int pthread_kill ( pthread_t thread_id,

int signum

)

Description:
Generate signal for thread (Std. UNIX; see AUP2 Sec. 9.1.9)

Headers:
signal.h

Returns:
0 on success, error number on failure (errno not set)

Parameters:

thread_id thread ID

signum signal

int pthread_mutex_lock ( pthread_mutex_t * mutex )

Description:
Lock mutex (Std. UNIX; see AUP2 Sec. 5.17.3)

Headers:
pthread.h

Returns:
0 on success, error number on failure

Parameters:

mutex mutex to lock

Definition at line 24 of file pthreadstub.c.
Referenced by dequeue_event(), ec_mutex(), get_and_incr_x(), main(), queue_event(), sorter(), thread_fdset(), thread_func(), and uem_wait().

int pthread_mutex_unlock ( pthread_mutex_t * mutex )

Description:
Unlock mutex (Std. UNIX; see AUP2 Sec. 5.17.3)

Headers:
pthread.h

Returns:
0 on success, error number on failure

Parameters:

mutex mutex to unlock

Definition at line 34 of file pthreadstub.c.
Referenced by cleanup_handler(), dequeue_event(), ec_mutex(), get_and_incr_x(), main(), queue_event(), sorter(), thread_fdset(), thread_func(), and uem_wait().

int pthread_sigmask ( int how,

const sigset_t * set,

sigset_t * oset

)

Description:
Change threads signal mask (Std. UNIX; see AUP2 Sec. 9.1.5)

Headers:

Returns:
0 on success, error number on failure (errno not set)

Parameters:

how how signal mask is to be changed

set input set

oset previous signal mask

Referenced by handle_signals(), uem_bgn(), and uem_register_signal().

void pthread_testcancel ( void )

Description:
Test for cancellation (Std. UNIX; see AUP2 Sec. 5.17.5)

Headers:
pthread.h

char* ptsname ( int fd )

Description:
Get name of slave side of pty (Std. UNIX; see AUP2 Sec. 4.10.1)

Headers:
stdlib.h

Returns:
name or NULL on error (errno not set)

Parameters:

fd file descriptor

Referenced by pt_open_master().

int putenv ( char * string )

Description:
Change or add to environment (Std. UNIX; see AUP2 Sec. 5.2)

Headers:
stdlib.h

Returns:
0 on success or non-zero on error (sets errno)

Parameters:

string string of form name=value

Referenced by process_env_test().

ssize_t pwrite ( int fd,

const void * buf,

size_t nbytes off_t offset

)

Description:
Write to file descriptor at offset (Std. UNIX; see AUP2 Sec. 2.14)

Headers:
unistd.h

Returns:
number of bytes written or -1 on error (sets errno)

Parameters:

fd file descriptor

buf data to write

offset amount to write where to write

Referenced by pwrite_test(), and writerec().

int raise ( int signum )

Description:
Generate signal for process (Std. UNIX; see AUP2 Sec. 9.1.9)

Headers:
signal.h

Returns:
0 on success or non-zero on error (sets errno)

Parameters:

signum signal

ssize_t read ( int fd,

void * buf,

size_t nbytes

)

Description:
Read from file descriptor (Std. UNIX; see AUP2 Sec. 2.10)

Headers:
unistd.h

Returns:
number of bytes read or -1 on error (sets errno)

Parameters:

fd file descriptor

buf address to receive data

nbytes amount to read

Referenced by asynchronous(), backward(), backward0(), cget(), copy(), copy2(), copy2a(), cready(), dir_read_test(), ev_read(), fsort(), fsort0(), getch(), getln(), getln2(), junk(), main(), main1(), pcsync_unblock_children(), pipetest(), readall(), readany(), readany2(), readany3(), readbuf(), run_client(), run_server(), scatter(), setup_fdset(), smi_receive_getaddr_fifo(), synchronous(), tc_keystroke(), test_setblock(), and try6().

struct dirent* readdir ( DIR * dirp )

Description:
Read directory (Std. UNIX; see AUP2 Sec. 3.6.1)

Headers:
dirent.h

Returns:
structure or NULL on EOF or error (sets errno)

Parameters:

dirp DIR pointer from opendir

Referenced by do_dir(), getcwdx(), and readdir_test().

int readdir_r ( DIR *restrict dirp,

struct dirent * entry,

struct dirent ** result

)

Description:
Read a directory (Std. UNIX; see AUP2 Sec. 3.6.1)

Headers:
dirent.h

Returns:
0 on success or error number on error (sets errno)

Parameters:

dirp DIR pointer from opendir

entry structure to hold entry

result result (pointer or NULL)

Referenced by readdir_r_test().

ssize_t readlink ( const char * path,

char * buf,

size_t bufsize

)

Description:
Read a symbolic link (Std. UNIX; see AUP2 Sec. 3.3.3)

Headers:
unistd.h

Returns:
byte count or -1 on error (sets errno)

Parameters:

path pathname

buf returned text

bufsize buffer size

Referenced by print_name().

ssize_t readv ( int fd,

const struct iovec * iov,

int iovcnt

)

Description:
Scatter read (Std. UNIX; see AUP2 Sec. 2.15)

Headers:
sys/uio.h

Returns:
number of bytes read or -1 on error (sets errno)

Parameters:

fd file descriptor

iov vector of data buffers

iovcnt number of elements

Referenced by main().

ssize_t recv ( int socket_fd,

void * buffer,

size_t length,

int flags

)

Description:
Receive data from socket (Std. UNIX; see AUP2 Sec. 8.9.1)

Headers:
sys/socket.h

Returns:
number of bytes received, 0, or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

buffer buffer to receive data

length length of buffer

flags flags

ssize_t recvfrom ( int socket_fd,

void * buffer,

size_t length,

int flags,

struct sockaddr * sa,

socklen_t * sa_len

)

Description:
Receive message from socket (Std. UNIX; see AUP2 Sec. 8.6.2)

Headers:
sys/socket.h

Returns:
number of bytes received, 0, or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

buffer buffer for received message

length length of buffer

flags flags

sa address of sender

sa_len address length

Referenced by run_server().

ssize_t recvmsg ( int socket_fd,

struct msghdr * message,

int flags

)

Description:
Receive a message from a socket (Std. UNIX; see AUP2 Sec. 8.6.3)

Headers:
sys/socket.h

Returns:
number of bytes received, 0, or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

message message

flags flags

Referenced by run_server().

int rename ( const char * oldpath,

const char * newpath

)

Description:
Rename a file (Std. UNIX; see AUP2 Sec. 3.3.2)

Headers:
stdio.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

oldpath old pathname

newpath new pathname

void rewinddir ( DIR * dirp )

Description:
Rewind directory (Std. UNIX; see AUP2 Sec. 3.6.1)

Headers:
dirent.h

Parameters:

dirp DIR pointer from opendir

Referenced by do_dir().

int rmdir ( const char * path )

Description:
Remove directory (Std. UNIX; see AUP2 Sec. 3.6.3)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

Referenced by rmdir_test().

void seekdir ( DIR * dirp,

long loc

)

Description:
Seek directory (Std. UNIX; see AUP2 Sec. 3.6.1)

Headers:
dirent.h

Parameters:

dirp DIR pointer from opendir

loc location

int select ( int nfds,

fd_set * readset,

fd_set * writeset,

fd_set * errorset,

struct timeval * timeout

)

Calls select.
Parameters:

nfds highest fd + 1

readset read set or NULL

writeset write set or NULL

errorset error set or NULL

timeout time-out (microseconds) or NULL

Definition at line 361 of file uxfile.cpp.
References errno.
Referenced by main(), pcsync_wait_for_parent(), pt_wait_master(), readany2(), readbuf(), run_server(), ssi_wait_server(), and thread_fdset().

int sem_close ( sem_t * sem )

Description:
Close named semaphore (Std. UNIX; see AUP2 Sec. 7.10.1)

Headers:
semaphore.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

sem semaphore

Referenced by SimpleSemClose().

int sem_destroy ( sem_t * sem )

Description:
Destroy unnamed semaphore (Std. UNIX; see AUP2 Sec. 7.10.2)

Headers:
semaphore.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

sem semaphore

Referenced by op_semi().

int sem_getvalue ( sem_t *restrict sem,

int * valuep

)

Description:
Get value of semaphore (Std. UNIX; see AUP2 Sec. 7.10.1)

Headers:
semaphore.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

sem semaphpre

valuep returned value

Referenced by main().

int sem_init ( sem_t * sem,

int pshared,

unsigned value

)

Description:
Initialize unnamed semaphore (Std. UNIX; see AUP2 Sec. 7.10.2)

Headers:
semaphore.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

sem semaphore

pshared shared between processes?

value initial value

Referenced by smi_open_pshm().

sem_t* sem_open ( const char * name,

int flags

)

Description:
Open named semaphore (Std. UNIX; see AUP2 Sec. 7.10.1)
sem_t *sem_open(
const char *name, POSIX IPC name
int flags, flags (including O_CREAT)
mode_t perms, permissions
unsigned value initial value
);
Headers:
semaphore.h

Returns:
pointer to semaphore or SEM_FAILED on error (sets errno)

Parameters:

name POSIX IPC name

flags flags (excluding O_CREAT)

Referenced by main(), setup_posix_sem(), and SimpleSemOpen().

int sem_post ( sem_t * sem )

Description:
Increment semaphore (Std. UNIX; see AUP2 Sec. 7.10.1)

Headers:
semaphore.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

sem semaphore

Referenced by main(), op_semi(), setup_posix_sem(), and SimpleSemPost().

int sem_timedwait ( sem_t *restrict sem,

const struct timespec * time

)

Description:
Decrement semaphore (Std. UNIX; see AUP2 Sec. 7.10.1)

Headers:
semaphore.h , time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

sem semaphore

time absolute time

int sem_trywait ( sem_t * sem )

Description:
Decrement semaphore if possible (Std. UNIX; see AUP2 Sec. 7.10.1)

Headers:
semaphore.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

sem semaphore

int sem_unlink ( const char * name )

Description:
Remove named semaphore (Std. UNIX; see AUP2 Sec. 7.10.1)

Headers:
semaphore.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

name POSIX IPC name

Referenced by main().

int sem_wait ( sem_t * sem )

Description:
Decrement semaphore (Std. UNIX; see AUP2 Sec. 7.10.1)

Headers:
semaphore.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

sem semaphore

Referenced by main(), op_semi(), and SimpleSemWait().

int semctl ( int semid,

int semnum,

int cmd,

union semun arg

)

Description:
Control semaphore set (Std. UNIX; see AUP2 Sec. 7.9.1)

Headers:
sys/sem.h

Returns:
value or 0 on success; -1 on error (sets errno)

Parameters:

semid identifier

semnum semaphore number

cmd command

arg argument for command

Referenced by init_semi(), setup_systemv_sem(), SimpleSemOpen(), SimpleSemRemove(), smi_close_shm(), and smi_open_shm().

int semget ( key_t key,

int nsems,

int flags

)

Description:
Get semaphore-set identifier (Std. UNIX; see AUP2 Sec. 7.9.1)

Headers:
sys/sem.h

Returns:
identifier or -1 on error (sets errno)

Parameters:

key key

nsems size of set

flags flags

Referenced by main(), setup_systemv_sem(), SimpleSemOpen(), SimpleSemRemove(), and smi_open_shm().

int semop ( int semid,

struct sembuf * sops,

size_t nsops

)

Description:
Operate on semaphore set (Std. UNIX; see AUP2 Sec. 7.9.2)

Headers:
sys/sem.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

semid identifier

sops operations

nsops number of operations

Referenced by op_semi(), setup_systemv_sem(), SimpleSemOpen(), SimpleSemPost(), SimpleSemWait(), and thread_svsem().

ssize_t send ( int socket_fd,

const void * data,

size_t length,

int flags

)

Description:
Send data to socket (Std. UNIX; see AUP2 Sec. 8.9.1)

Headers:
sys/socket.h

Returns:
number of bytes sent or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

data data to send

length length of data

flags flags

ssize_t sendmsg ( int socket_fd,

const struct msghdr * message,

int flags

)

Description:
Send a message on a socket using a message structure (Std. UNIX; see AUP2 Sec. 8.6.3)

Headers:
sys/socket.h

Returns:
number of bytes sent or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

message message

flags flags

Referenced by run_server().

ssize_t sendto ( int socket_fd,

const void * message,

size_t length,

int flags,

const struct sockaddr * sa,

socklen_t sa_len

)

Description:
Send message to socket (Std. UNIX; see AUP2 Sec. 8.6.2)

Headers:
sys/socket.h

Returns:
number of bytes sent or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

message message to send

length length of message

flags flags

sa target address

sa_len length of target address

Referenced by main(), run_client(), and run_server().

int setegid ( gid_t gid )

Description:
Set effective group ID (Std. UNIX; see AUP2 Sec. 5.12)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

gid effective group ID

int setenv ( const char * var,

const char * val,

int overwrite

)

Description:
Change or add to environment (Std. UNIX; see AUP2 Sec. 5.2)

Headers:
stdlib.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

var variable to be changed or added

val value

overwrite overwrite?

Definition at line 43 of file setenv.c.
References environ, errno, setnew(), and val.

int seteuid ( uid_t uid )

Description:
Set effective user ID (Std. UNIX; see AUP2 Sec. 5.12)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

uid effective user ID

int setgid ( gid_t gid )

Description:
Set real, effective, and saved group ID (Std. UNIX; see AUP2 Sec. 5.12)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

gid real and saved group ID

void sethostent ( int stayopen )

Description:
Start host-database scan (Std. UNIX; see AUP2 Sec. 8.8.1)

Headers:
netdb.h

Parameters:

stayopen leave connection open?

Referenced by hostdb().

int setitimer ( int which,

const struct itimerval * val,

struct itimerval * oval

)

Description:
Set value of interval timer (Std. UNIX; see AUP2 Sec. 9.7.4)

Headers:
sys/time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

which timer to set

val value to set

oval returned old value

int setjmp ( jmp_buf loc_info )

Description:
Set jump point (Std. UNIX; see AUP2 Sec. 9.6)

Headers:
setjmp.h

Returns:
0 if called directly, non-zero if from longjmp (no error return)

Parameters:

loc_info saved location information

Referenced by main().

void setnetent ( int stayopen )

Description:
Start network-database scan (Std. UNIX; see AUP2 Sec. 8.8.2)

Headers:
netdb.h

Parameters:

stayopen leave connection open?

Referenced by netdb().

int setpgid ( pid_t pid,

pid_t pgid

)

Description:
Set or create process-group (Std. UNIX; see AUP2 Sec. 4.3.3)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

pid process ID or 0 for calling process

pgid process-group ID

void setprotoent ( int stayopen )

Description:
Start protocol-database scan (Std. UNIX; see AUP2 Sec. 8.8.3)

Headers:
netdb.h

Parameters:

stayopen leave connection open?

Referenced by main(), and protodb().

int setrlimit ( int resource,

const struct rlimit * rlp

)

Description:
Set resource limits (Std. UNIX; see AUP2 Sec. 5.16)

Headers:
sys/resource.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

resource resource

rlp limits to set

Referenced by main(), and process_test().

void setservent ( int stayopen )

Description:
Start service-database scan (Std. UNIX; see AUP2 Sec. 8.8.4)

Headers:
netdb.h

Parameters:

stayopen leave connection open?

Referenced by servdb().

pid_t setsid ( void )

Description:
Create session and process group (Std. UNIX; see AUP2 Sec. 4.3.2)

Headers:
unistd.h

Returns:
process-group ID or -1 on error (sets errno)

Referenced by pt_open_slave().

int setsockopt ( int socket_fd,

int level,

int option,

const void * value,

socklen_t value_len

)

Description:
Set the socket options (Std. UNIX; see AUP2 Sec. 8.3)

Headers:
sys/socket.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

level level to be accessed

option option to set

value value to set

value_len length of value

Referenced by ssi_open().

int setuid ( uid_t uid )

Description:
Set real, effective, and saved user ID (Std. UNIX; see AUP2 Sec. 5.12)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

uid real and saved user ID

int shm_open ( const char * name,

int flags,

mode_t perms

)

Description:
Open shared-memory object (Std. UNIX; see AUP2 Sec. 7.14.1)

Headers:
sys/mman.h

Returns:
file descriptor or -1 on error (sets errno)

Parameters:

name POSIX IPC name

flags flags

perms permissions

Referenced by get_client(), and smi_open_pshm().

int shm_unlink ( const char * name )

Description:
Remove shared-memory object (Std. UNIX; see AUP2 Sec. 7.14.1)

Headers:
sys/mman.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

name POSIX IPC name

Referenced by smi_close_pshm(), and smi_open_pshm().

void* shmat ( int shmid,

const void * shmaddr,

int flags

)

Description:
Attach shared memory segment (Std. UNIX; see AUP2 Sec. 7.13.1)

Headers:
sys/shm.h

Returns:
pointer or -1 on error (sets errno)

Parameters:

shmid identifier

shmaddr desired address or NULL

flags attachment flags

Referenced by getaddr(), and smi_open_shm().

int shmctl ( int shmid,

int cmd,

struct shmid_ds * data

)

Description:
Control shared memory segment (Std. UNIX; see AUP2 Sec. 7.13.1)

Headers:
sys/shm.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

shmid identifier

cmd command

data data for command

Referenced by smi_close_shm(), and smi_open_shm().

int shmdt ( const void * shmaddr )

Description:
Detach shared memory segment (Std. UNIX; see AUP2 Sec. 7.13.1)

Headers:
sys/shm.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

shmaddr pointer to segment

Referenced by getaddr(), and smi_close_shm().

int shmget ( key_t key,

size_t size,

int flags

)

Description:
Get shared memory segment (Std. UNIX; see AUP2 Sec. 7.13.1)

Headers:
sys/shm.h

Returns:
shared-memory identifier or -1 on error (sets errno)

Parameters:

key key

size size of segment

flags creation flags

Referenced by getaddr(), and smi_open_shm().

int shutdown ( int socket_fd,

int how

)

Description:
Shut down socket send and/or receive operations (Std. UNIX; see AUP2 Sec. 8.9.4)

Headers:
sys/socket.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

how SHUT_RD, SHUT_WR, or SHUT_RDWR

int sigaction ( int signum,

const struct sigaction * act,

struct sigaction * oact

)

Description:
Set signal action (Std. UNIX; see AUP2 Sec. 9.1.6)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

signum signal

act new action

oact old action

Referenced by aup_sleep(), entry_sig(), handle_signals(), ignore_sig(), main(), pcsync_wait_for_parent(), posixsem_test(), sysvsem_test(), try2(), try3(), and try4().

int sigaddset ( sigset_t * set,

int signum

)

Description:
Add signal to signal set (Std. UNIX; see AUP2 Sec. 9.1.5)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

set signal set

signum signal

Referenced by aup_sleep(), handle_signals(), pcsync_init(), thread_signal(), try3(), try4(), try5(), and uem_register_signal().

int sigaltstack ( const stack_t * stack,

stack_t * ostack

)

Description:
Set and get alternate stack context (Std. UNIX; see AUP2 Sec. 9.3)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

stack new stack

ostack old stack

int sigdelset ( sigset_t * set,

int signum

)

Description:
Delete a signal from a signal set (Std. UNIX; see AUP2 Sec. 9.1.5)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

set signal set

signum signal

Referenced by aup_sleep(), pcsync_wait_for_parent(), try3(), try4(), and uem_bgn().

int sigemptyset ( sigset_t * set )

Description:
Initialize empty signal set (Std. UNIX; see AUP2 Sec. 9.1.5)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

set signal set

Referenced by aup_sleep(), handle_signals(), pcsync_init(), thread_signal(), try3(), try4(), try5(), uem_bgn(), and uem_register_signal().

int sigfillset ( sigset_t * set )

Description:
Initialize full signal set (Std. UNIX; see AUP2 Sec. 9.1.5)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

set signal set

Referenced by handle_signals(), main(), pcsync_wait_for_parent(), try3(), try4(), and uem_bgn().

int sighold ( int signum )

Description:
Block a signal (Std. UNIX; see AUP2 Sec. 9.4)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

signum signal

int sigignore ( int signum )

Description:
Ignore signal (Std. UNIX; see AUP2 Sec. 9.4)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

signum signal

int siginterrupt ( int signum,

int on

)

Description:
Set or clear SA_RESTART flag (Std. UNIX; see AUP2 Sec. 9.3)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

signum signal

on non-zero to set, zero to clear

int sigismember ( const sigset_t * set,

int signum

)

Description:
Test for signal in signal set (Std. UNIX; see AUP2 Sec. 9.1.5)

Headers:
signal.h

Returns:
1 if member, 0 if not, or -1 on error (sets errno)

Parameters:

set signal set

signum signal

void siglongjmp ( sigjmp_buf loc_info,

int val

)

Description:
Jump to jump point, restore signal mask if saved (Std. UNIX; see AUP2 Sec. 9.6)

Headers:
setjmp.h

Parameters:

loc_info saved location information

val value for sigsetjmp to return

int sigpause ( int signum )

Description:
Change signal mask and wait for signal (Std. UNIX; see AUP2 Sec. 9.4)

Headers:
signal.h

Returns:
-1 on error, always (sets errno)

Parameters:

signum signal

int sigpending ( sigset_t * set )

Description:
Examine pending signals (Std. UNIX; see AUP2 Sec. 9.3)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

set returned set of pending signals

int sigprocmask ( int how,

const sigset_t * set,

sigset_t * oset

)

Description:
Change threads signal mask (single thread only) (Std. UNIX; see AUP2 Sec. 9.1.5)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

how how signal mask is to be changed

set input set

oset previous signal mask

Referenced by aup_sleep(), handle_signals(), main(), pcsync_init(), pcsync_unblock_children(), pcsync_wait_for_parent(), try3(), try4(), and try5().

int sigqueue ( pid_t pid,

int signum,

const union sigval value

)

Description:
Generate signal for process (Std. UNIX; see AUP2 Sec. 9.5.4)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

pid process ID

signum signal

value value

Referenced by main().

int sigrelse ( int signum )

Description:
Unblock signal (Std. UNIX; see AUP2 Sec. 9.4)

Headers:
signal.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

signum signal

int sigsetjmp ( sigjmp_buf loc_info,

int savemask

)

Description:
Set jump point (Std. UNIX; see AUP2 Sec. 9.6)

Headers:
setjmp.h

Returns:
0 if called directly, non-zero if from siglongjmp (no error return)

Parameters:

loc_info saved location information

savemask non-zero to save signal mask

int sigsuspend ( const sigset_t * sigmask )

Description:
Change signal mask and wait for signal (Std. UNIX; see AUP2 Sec. 9.2.3)

Headers:
signal.h

Returns:
-1 on error, always (sets errno)

Parameters:

sigmask temporary signal mask

Referenced by aup_sleep(), pcsync_wait_for_parent(), and try4().

int sigtimedwait ( const sigset_t * set,

siginfo_t * info,

const struct timespec * ts

)

Description:
Wait for signal (Std. UNIX; see AUP2 Sec. 9.5.5)

Headers:
signal.h

Returns:
signal number or -1 on error (sets errno)

Parameters:

set signals to wait for

info returned info

ts max. time to wait

int sigwait ( const sigset_t * set,

int * signum

)

Description:
Wait for signal (Std. UNIX; see AUP2 Sec. 9.2.2)

Headers:
signal.h

Returns:
0 on success or error number on error

Parameters:

set signals to wait for

signum signal that was delivered

Referenced by sig_thread(), thread_signal(), and try5().

int sigwaitinfo ( const sigset_t * set,

siginfo_t * info

)

Description:
Wait for signal (Std. UNIX; see AUP2 Sec. 9.5.5)

Headers:
signal.h

Returns:
signal number or -1 on error (sets errno)

Parameters:

set signals to wait for

info returned info

unsigned sleep ( unsigned secs )

Description:
Suspend execution for seconds or until signal (Std. UNIX; see AUP2 Sec. 9.7.2)

Headers:
unistd.h

Returns:
unslept amount

Parameters:

secs seconds to sleep

Referenced by ev_sleep(), file_ctime_test(), lock(), main(), playback(), process(), process_test(), readany(), run_client(), setup_fdset(), setup_posix_msg(), setup_posix_sem(), setup_process(), setup_signal(), setup_systemv_msg(), setup_systemv_sem(), SimpleSemOpen(), Ux::Clock::sleep(), smi_open_shm(), sorter(), test_setblock(), testlock(), thread1_func(), and thread_func().

int sockatmark ( int socket_fd )

Description:
Test presence of out-of-band mark (Std. UNIX; see AUP2 Sec. 8.7)

Headers:
sys/socket.h

Returns:
1 if at mark, 0 if not, or -1 on error (sets errno)

Parameters:

socket_fd socket file descriptor

int socket ( int domain,

int type,

int protocol

)

Description:
Create endpoint for communication (Std. UNIX; see AUP2 Sec. 8.1.2)

Headers:
sys/socket.h

Returns:
file descriptor or -1 on error (sets errno)

Parameters:

domain domain (AF_UNIX, AF_INET, etc.)

type SOCK_STREAM, SOCK_DGRAM, etc.

protocol specific to type; usually zero

Referenced by main(), main1(), run_client(), run_server(), and ssi_open().

int socketpair ( int domain,

int type,

int protocol int socket_vector[2]

)

Description:
Create pair of sockets (Std. UNIX; see AUP2 Sec. 8.9.3)

Headers:
sys/socket.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

domain domain (AF_UNIX, AF_INET, etc.)

type SOCK_STREAM, SOCK_DGRAM, etc.

socket_vector specific to type; usually zero returned socket file descriptors

int stat ( const char * path,

struct stat * buf

)

Description:
Get file info by path (Std. UNIX; see AUP2 Sec. 3.5.1)

Headers:
sys/stat.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

buf returned information

Referenced by handle_request(), and main().

int statvfs ( const char *path struct statvfs * buf )

Description:
Get file system information by path (Std. UNIX; see AUP2 Sec. 3.2.3)

Headers:
sys/statvfs.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

buf pathname returned info

size_t strftime ( char * buf,

size_t bufsize,

const char * format,

const struct tm * tmbuf

)

Description:
Convert broken-down time to string with format (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
byte count or 0 on error (errno not set)

Parameters:

buf output buffer

bufsize size of buffer

format format

tmbuf broken-down time

Referenced by logfmt(), and print_date().

char* strptime ( const char * s,

const char * format,

struct tm * tmbuf

)

Description:
Convert string to broken-down time with format (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
? or NULL on error (errno not set)

Parameters:

s string to convert

format format

tmbuf broken-down time (output)

int symlink ( const char * oldpath,

const char * newpath

)

Description:
Create a symbolic link (Std. UNIX; see AUP2 Sec. 3.3.3)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

oldpath old pathname

newpath possible new pathname

Referenced by main().

void sync ( void )

Description:
Schedule buffer-cache flushing (Std. UNIX; see AUP2 Sec. 2.16.2)

Headers:
unistd.h

Referenced by main().

long sysconf ( int name )

Description:
Get system option or limit (Std. UNIX; see AUP2 Sec. 1.5.5)

Headers:
unistd.h

Returns:
option/limit value or -1 (sets errno on error)

Parameters:

name option or limit name

Referenced by junk(), main(), and timestart().

int system ( const char * command )

Description:
Run command (Std. UNIX; see AUP2 Sec. 5.5)

Headers:
stdlib.h

Returns:
exit status or -1 on error (sets errno)

Parameters:

command command

Referenced by ftruncate_test(), junk(), main(), pwrite_test(), readdir_test(), rmdir_test(), and runtest().

int tcdrain ( int fd )

Description:
Drain (wait for) terminal output (Std. UNIX; see AUP2 Sec. 4.6)

Headers:
termios.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

Referenced by playback().

int tcflow ( int fd,

int action

)

Description:
Suspend or restart flow of terminal input or output (Std. UNIX; see AUP2 Sec. 4.6)

Headers:
termios.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

action direction and suspend/restart

int tcflush ( int fd,

int queue

)

Description:
Flush (throw away) terminal output, input, or both (Std. UNIX; see AUP2 Sec. 4.6)

Headers:
termios.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

queue queue to be affected

int tcgetattr ( int fd,

struct termios * tp

)

Description:
Get terminal attributes (Std. UNIX; see AUP2 Sec. 4.5.1)

Headers:
termios.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

tp attributes

Referenced by playback(), tc_keystroke(), and tc_setraw().

pid_t tcgetpgrp ( int fd )

Description:
Get foreground process-group ID (Std. UNIX; see AUP2 Sec. 4.3.4)

Headers:
unistd.h

Returns:
process-group ID or -1 on error (sets errno)

Parameters:

fd file descriptor

Referenced by showpginfo().

pid_t tcgetsid ( int fd )

Description:
Get session ID (Std. UNIX; see AUP2 Sec. 4.3.4)

Headers:
termios.h

Returns:
session ID or -1 on error (sets errno)

Parameters:

fd file descriptor

Referenced by showpginfo().

int tcsendbreak ( int fd,

int duration

)

Description:
Send break to terminal (Std. UNIX; see AUP2 Sec. 4.6)

Headers:
termios.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

duration duration of break

int tcsetattr ( int fd,

int actions,

const struct termios * tp

)

Description:
Set terminal attributes (Std. UNIX; see AUP2 Sec. 4.5.1)

Headers:
termios.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

actions actions on setting

tp attributes

Referenced by playback(), tc_keystroke(), tc_restore(), and tc_setraw().

int tcsetpgrp ( int fd,

pid_t pgid

)

Description:
Set foreground process-group ID (Std. UNIX; see AUP2 Sec. 4.3.4)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

pgid process-group ID

long telldir ( DIR * dirp )

Description:
Get directory location (Std. UNIX; see AUP2 Sec. 3.6.1)

Headers:
dirent.h

Returns:
location (no error return)

Parameters:

dirp DIR pointer from opendir

Referenced by Ux::DirStream::tell().

time_t time ( time_t * t )

Description:
Get current date and time as time_t (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
time.h

Returns:
time or -1 on error (errno not set)

Parameters:

t NULL or returned time

Referenced by Ux::Timestr::ctime(), getaddr(), Ux::Timetm::gmtime(), Ux::Timetm::localtime(), logfmt(), main(), print_date(), send_header_OK(), test_setblock(), and Ux::PosixSem::timedwait().

int timer_create ( clockid_t clockid,

struct sigevent * sig,

timer_t * timer_id

)

Description:
Create per-process timer (Std. UNIX; see AUP2 Sec. 9.7.6)

Headers:
signal.h , time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

clockid clock ID

sig NULL or signal to generate

timer_id returned timer ID

int timer_delete ( timer_t timer_id )

Description:
Delete per-process timer (Std. UNIX; see AUP2 Sec. 9.7.6)

Headers:
time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

timer_id timer ID

int timer_getoverrun ( timer_t timer_id )

Description:
Get per-process timer overrun count (Std. UNIX; see AUP2 Sec. 9.7.6)

Headers:
time.h

Returns:
overrun count or -1 on error (sets errno)

Parameters:

timer_id timer ID

int timer_gettime ( timer_t timer_id,

struct itimerspec * val

)

Description:
Get value of per-process timer (Std. UNIX; see AUP2 Sec. 9.7.6)

Headers:
time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

timer_id timer ID

val returned value

int timer_settime ( timer_t timer_id,

int flags,

const struct itimerspec * val,

struct itimerspec * oval

)

Description:
Set value of per-process timer (Std. UNIX; see AUP2 Sec. 9.7.6)

Headers:
time.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

timer_id timer ID

flags flags

val value to set

oval returned old value

clock_t times ( struct tms * buffer )

Description:
Get process and child-process execution times (Std. UNIX; see AUP2 Sec. 1.7.2)

Headers:
sys/times.h

Returns:
time in clock ticks or -1 on error (sets errno)

Referenced by timestart(), and timestop().

int truncate ( const char * path,

off_t length

)

Description:
Truncate or stretch file by path (Std. UNIX; see AUP2 Sec. 2.17)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

length new length

char* ttyname ( int fd )

Description:
Find pathname of terminal (Std. UNIX; see AUP2 Sec. 4.7)

Headers:
unistd.h

Returns:
string or NULL on error (sets errno)

Parameters:

fd file descriptor

Referenced by main().

int ttyname_r ( int fd,

char * buf,

size_t bufsize

)

Description:
Find pathname of terminal (Std. UNIX; see AUP2 Sec. 4.7)

Headers:
unistd.h

Returns:
0 on success or error number on error (sets errno)

Parameters:

fd file descriptor

buf buffer for pathname

bufsize size of buffer

void tzset ( void )

long ulimit ( int cmd,

...

)

Description:
Get and set process limits (Std. UNIX; see AUP2 Sec. 5.16)

Headers:
ulimit.h

Returns:
limit or -1 with errno changed on error (sets errno)

Parameters:

cmd command

mode_t umask ( mode_t cmask )

Description:
Set and get file mode creation mask (Std. UNIX; see AUP2 Sec. 2.5)

Headers:
sys/stat.h

Returns:
previous mask (no error return)

Parameters:

cmask new mask

Referenced by Ux::Process::umask().

int umount ( const char * target )

Description:
Unmount file system (non-standard) (Std. UNIX; see AUP2 Sec. 3.2.4)

Headers:
sys/mount.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

target directory

int uname ( struct utsname * name )

Description:
Get the name of the current system (Std. UNIX; see AUP2 Sec. 8.8.1)

Headers:
sys/utsname.h

Returns:
? or -1 on error (sets errno)

Referenced by main().

int unlink ( const char * path )

Description:
Remove directory entry (Std. UNIX; see AUP2 Sec. 2.6)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

Referenced by backward_test(), cleanup_previous_run(), fcntl_example(), junk(), main(), run_client(), SimpleSemRemove(), smi_close_fifo(), smi_close_shm(), smi_open_fifo(), ssi_close(), ssi_open(), and unlock().

int unlockpt ( int fd )

Description:
Unlock pty (Std. UNIX; see AUP2 Sec. 4.10.1)

Headers:
stdlib.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

fd file descriptor

Referenced by pt_open_master().

int unsetenv ( const char * var )

Description:
Remove environment variable (Std. UNIX; see AUP2 Sec. 5.2)

Headers:
stdlib.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

var variable to be removed

Definition at line 80 of file setenv.c.
References environ, and errno.

int usleep ( useconds_t usecs )

Description:
Suspend execution for microseconds or until signal (Std. UNIX; see AUP2 Sec. 9.7.3)

Headers:
unistd.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

usecs microseconds to sleep

Referenced by ev_sleep(), process_test(), and store().

int utime ( const char * path,

const struct utimbuf * timbuf

)

Description:
Set file access and modification times (Std. UNIX; see AUP2 Sec. 3.7.3)

Headers:
utime.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

path pathname

timbuf new times

pid_t vfork ( void )

Description:
Create new process; share memory (obsolete) (Std. UNIX; see AUP2 Sec. 5.5)

Headers:
unistd.h

Returns:
childs process-ID and 0 on success or -1 on error (sets errno)

pid_t wait ( int * statusp )

Description:
Wait for child process to terminate (Std. UNIX; see AUP2 Sec. 5.8)

Headers:
sys/wait.h

Returns:
process ID or -1 on error (sets errno)

Parameters:

statusp pointer to status or NULL

Referenced by main().

int waitid ( idtype_t idtype,

id_t id,

siginfo_t * infop,

int options

)

Description:
Wait for child process to change state [X/Open] (Std. UNIX; see AUP2 Sec. 5.8)

Headers:
sys/wait.h

Returns:
0 on success or -1 on error (sets errno)

Parameters:

idtype interpretation of id

id process or process-group ID

infop returned info

options options

pid_t waitpid ( pid_t pid,

int * statusp,

int options

)

Description:
Wait for child process to change state (Std. UNIX; see AUP2 Sec. 5.8)

Headers:
sys/wait.h

Returns:
process ID or 0 on success or -1 on error (sets errno)

Parameters:

pid process or process-group ID

statusp pointer to status or NULL

options options (see below)

Referenced by execute3(), fsort(), fsort0(), main(), pipewrite2(), pipewrite2bug(), thread_process(), Ux::Process::wait(), wait_and_display(), Ux::Process::waitpid(), who_wc(), and who_wc2().

size_t wcsftime ( wchar_t * buf,

size_t bufsize,

const wchar_t * format,

const struct tm * tmbuf

)

Description:
Convert broken-down time to wide-character string with format (Std. UNIX; see AUP2 Sec. 1.7.1)

Headers:
wchar.h

Returns:
wchar_t count or zero on error (errno not set)

Parameters:

buf output buffer

bufsize size of buffer

format format

tmbuf broken-down time

ssize_t write ( int fd,

const void * buf,

size_t nbytes

)

Description:
Write to file descriptor (Std. UNIX; see AUP2 Sec. 2.9)

Headers:
unistd.h

Returns:
number of bytes written or -1 on error (sets errno)

Parameters:

fd file descriptor

buf data to write

nbytes amount to write

Referenced by alarm_handler(), buildfile(), copy(), copy2(), copy2a(), fcn(), file_ctime_test(), fsort(), fsort0(), ftruncate_test(), handler(), junk(), main(), main1(), pcsync_unblock_children(), pcsync_wait_for_parent(), pipetest(), pipewrite(), pipewrite2(), pipewrite2bug(), playback(), pwrite_test(), run_client(), run_server(), setup_fdset(), smi_send_release_fifo(), synctest(), time_traffic(), writeall(), and writebuf().

ssize_t writev ( int fd,

const struct iovec * iov,

int iovcnt

)

Description:
Gather write (Std. UNIX; see AUP2 Sec. 2.15)

Headers:
sys/uio.h

Returns:
number of bytes written or -1 on error (sets errno)

Parameters:

fd file descriptor

iov vector of data buffers

iovcnt number of elements

Referenced by main(), and scatter().

Variable Documentation

int daylight

DST? (not in FreeBSD)
Definition at line 3957 of file SUS_Summary.

void(*)(int) signal( int signum, void (*act)(int) )

Description:
Set signal action (Std. UNIX; see AUP2 Sec. 9.4)

Headers:
signal.h

Returns:
old action or SIG_ERR on error (sets errno)

Definition at line 2944 of file SUS_Summary.
Referenced by setup_fdset().

void(*)(int) sigset( int signum, void (*act)(int) )

Description:
Signal management (Std. UNIX; see AUP2 Sec. 9.4)

Headers:
signal.h

Returns:
old action or SIG_ERR on error (sets errno)

Definition at line 3015 of file SUS_Summary.

long timezone

timezone in secs (not in FreeBSD)
Definition at line 3958 of file SUS_Summary.

char* tzname[2]

timezone strings (not in FreeBSD)
Definition at line 3959 of file SUS_Summary.

Generated on Fri Apr 23 10:57:12 2004 for AUP2 Example Source by

1.3.1


Compounds
struct	addrinfo
struct	aiocb
struct	dirent
struct	flock
struct	group
struct	hostent
struct	if_nameindex
struct	iovec
struct	ipc_perm
struct	itimerspec
struct	itimerval
struct	mq_attr
struct	msg
struct	msghdr
struct	msqid_ds
struct	netent
struct	passwd
struct	pollfd
struct	protoent
struct	rlimit
struct	rusage
struct	sembuf
struct	semid_ds
union	semun
struct	servent
struct	sigaction
struct	sigevent
struct	siginfo_t
union	sigval
struct	SimpleSem
struct	sockaddr_in
struct	sockaddr_in6
struct	sockaddr_un
struct	stat
struct	statvfs
struct	termios
struct	timespec
struct	timeval
struct	tm
struct	tms
struct	utimbuf
Functions
void	FD_CLR (int fd, fd_set *fdset)
int	FD_ISSET (int fd, fd_set *fdset)
void	FD_SET (int fd, fd_set *fdset)
void	FD_ZERO (fd_set *fdset)
void	_Exit (int status)
void	_exit (int status)
void	_longjmp (jmp_buf loc_info, int val)
int	_setjmp (jmp_buf loc_info)
void	abort (void)
int	accept (int socket_fd, struct sockaddr sa, socklen_t sa_len)
int	access (const char *path, int what)
int	aio_cancel (int fd, struct aiocb *aiocbp)
int	aio_error (const struct aiocb *aiocbp)
int	aio_fsync (int op, struct aiocb *aiocbp)
int	aio_read (struct aiocb *aiocbp)
ssize_t	aio_return (struct aiocb *aiocbp)
int	aio_suspend (const struct aiocb const list[], int cbcnt, const struct timespec timeout)
int	aio_write (struct aiocb *aiocbp)
unsigned	alarm (unsigned secs)
char *	asctime (const struct tm *tmbuf)
int	atexit (void(*fcn)(void))
int	bind (int socket_fd, const struct sockaddr *sa, socklen_t sa_len)
speed_t	cfgetispeed (const struct termios *tp)
speed_t	cfgetospeed (const struct termios *tp)
int	cfsetispeed (struct termios *tp, speed_t speed)
int	cfsetospeed (struct termios *tp, speed_t speed)
int	chdir (const char *path)
int	chmod (const char *path, mode_t mode)
int	chown (const char *path, uid_t uid, gid_t gid)
int	chroot (const char *path)
clock_t	clock (void)
int	clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
int	clock_getres (clockid_t clock_id, struct timespec *res)
int	clock_gettime (clockid_t clock_id, struct timespec *tp)
int	clock_nanosleep (clockid_t clock_id, int flags, const struct timespec nsecs, struct timespec remain)
int	clock_settime (clockid_t clock_id, const struct timespec *tp)
int	close (int fd)
int	closedir (DIR *dirp)
size_t	confstr (int name, char *buf, size_t len)
int	connect (int socket_fd, const struct sockaddr *sa, socklen_t sa_len)
int	creat (const char *path, mode_t perms)
char *	ctermid (char *buf)
char *	ctime (const time_t *t)
double	difftime (time_t time1, time_t time0)
int	dup (int fd)
int	dup2 (int fd, int fd2)
void	endhostent (void)
void	endnetent (void)
void	endprotoent (void)
void	endservent (void)
int	execl (const char path, const char arg0, const char arg1,..., (char )NULL)
int	execle (const char path, const char arg0, const char arg1,..., (char )NULL, char *const envv[])
int	execlp (const char file, const char arg0, const char arg1,..., (char )NULL)
int	execv (const char path, char const argv[])
int	execve (const char path, char const argv[], char *const envv[])
int	execvp (const char file, char const argv[])
void	exit (int status)
int	fchdir (int fd)
int	fchmod (int fd, mode_t mode)
int	fchown (int fd, uid_t uid, gid_t gid)
int	fcntl (int fd, int op,...)
int	fdatasync (int fd)
pid_t	fork (void)
long	fpathconf (int fd, int name)
void	freeaddrinfo (struct addrinfo *infop)
int	fstat (int fd, struct stat *buf)
int	fstatvfs (int fd, struct statvfs *buf)
int	fsync (int fd)
key_t	ftok (const char *path, int id)
int	ftruncate (int fd, off_t length)
const char *	gai_strerror (int code)
int	getaddrinfo (const char nodename, const char servname, const struct addrinfo hint, struct addrinfo *infop)
char *	getcwd (char *buf, size_t bufsize)
tm *	getdate (const char *s)
gid_t	getegid (void)
char *	getenv (const char *var)
uid_t	geteuid (void)
gid_t	getgid (void)
group *	getgrgid (gid_t gid)
hostent *	gethostbyaddr (const void *addr, socklen_t len, int family)
hostent *	gethostbyname (const char *nodename,)
hostent *	gethostent (void)
long	gethostid (void)
int	gethostname (char *name, size_t namelen)
int	getitimer (int which, struct itimerval *val)
char *	getlogin (void)
int	getnameinfo (const struct sockaddr sa, socklen_t sa_len, char nodename, socklen_t nodelen, char *servname, socklen_t servlen, unsigned flags)
netent *	getnetbyaddr (uint32_t net, int type)
netent *	getnetbyname (const char *name)
netent *	getnetent (void)
int	getpeername (int socket_fd, struct sockaddr sa, socklen_t sa_len)
pid_t	getpgid (pid_t pid)
pid_t	getpid (void)
pid_t	getppid (void)
protoent *	getprotobyname (const char *name)
protoent *	getprotobynumber (int proto)
protoent *	getprotoent (void)
passwd *	getpwuid (uid_t uid)
int	getrlimit (int resource, struct rlimit *rlp)
int	getrusage (int who, struct rusage *r_usage)
servent *	getservbyname (const char name, const char proto)
servent *	getservbyport (int port, const char *proto)
servent *	getservent (void)
pid_t	getsid (pid_t pid)
int	getsockname (int socket_fd, struct sockaddr sa, socklen_t sa_len)
int	getsockopt (int socket, int level, int option, const void value, socklen_t value_len)
int	gettimeofday (struct timeval tvalbuf, void dummy)
uid_t	getuid (void)
tm *	gmtime (const time_t *t)
int	grantpt (int fd)
uint32_t	htonl (uint32_t hostnum)
uint16_t	htons (uint16_t hostnum)
void	if_freenameindex (struct if_nameindex *ptr)
char *	if_indextoname (unsigned ifindex, char *ifname)
if_nameindex *	if_nameindex (void)
unsigned	if_nametoindex (const char *ifname)
in_addr_t	inet_addr (const char *cp)
char *	inet_ntoa (struct in_addr in)
const char *	inet_ntop (int domain, const void src, char dst, socklen_t dst_len)
int	inet_pton (int domain, const char src, void dst)
int	ioctl (int fd, int req,...)
int	isatty (int fd)
int	kill (pid_t pid, int signum)
int	killpg (pid_t pgrp, int signum)
int	lchown (const char *path, uid_t uid, gid_t gid)
int	link (const char oldpath, const char newpath)
int	lio_listio (int mode, struct aiocb const list[], int cbcnt, struct sigevent sig)
int	listen (int socket_fd, int backlog)
tm *	localtime (const time_t *t)
int	lockf (int fd, int op, off_t len)
void	longjmp (jmp_buf loc_info, int val)
off_t	lseek (int fd, off_t pos, int whence)
int	lstat (const char path, struct stat buf)
int	mkdir (const char *path, mode_t perms)
int	mkfifo (const char *path, mode_t perms)
int	mknod (const char *path, mode_t perms, dev_t dev)
int	mkstemp (char *template)
time_t	mktime (struct tm *tmbuf)
void *	mmap (void *addr, size_t len, int prot, int flags, int fd, off_t off)
int	mount (const char source, const char target, const char type, unsigned long flags, const void data)
int	mq_close (mqd_t mqd)
int	mq_getattr (mqd_t mqd, struct mq_attr *attr)
int	mq_notify (mqd_t mqd, const struct sigevent *ep)
mqd_t	mq_open (const char *name, int flags)
ssize_t	mq_receive (mqd_t mqd, char msg, size_t msgsize, unsigned priorityp)
int	mq_send (mqd_t mqd, const char *msg, size_t msgsize, unsigned priority)
int	mq_setattr (mqd_t mqd, const struct mq_attr attr, struct mq_attr oldattr)
ssize_t	mq_timedreceive (mqd_t mqd, char msg, size_t msgsize, unsigned priorityp const struct timespec *tmout)
int	mq_timedsend (mqd_t mqd, const char msg, size_t msgsize, unsigned priority const struct timespec tmout)
int	mq_unlink (const char *name)
int	msgctl (int msqid, int cmd, struct msqid_ds *data)
int	msgget (key_t key, int flags)
ssize_t	msgrcv (int msqid, const void *msgp, size_t mtextsize, long msgtype, int flags)
int	msgsnd (int msqid, const void *msgp, size_t msgsize, int flags)
int	munmap (void *addr, size_t len)
int	nanosleep (const struct timespec nsecs, struct timespec remain)
int	nice (int incr)
uint32_t	ntohl (uint32_t netnum)
uint16_t	ntohs (uint16_t netnum)
int	open (const char *path, int flags, mode_t perms)
DIR *	opendir (const char *path)
long	pathconf (const char *path, int name)
int	pause (void)
int	pipe (int pfd[2])
int	poll (struct pollfd fdinfo[], nfds_t nfds, int timeout)
int	posix_openpt (int oflag)
ssize_t	pread (int fd, void *buf, size_t nbytes off_t offset)
int	pselect (int nfds, fd_set readset, fd_set writeset, fd_set errorset, const struct timespec timeout, const sigset_t *sigmask)
int	pthread_cancel (pthread_t thread_id)
void	pthread_cleanup_pop (int execute)
void	pthread_cleanup_push (void(handler)(void ), void *arg)
int	pthread_cond_signal (pthread_cond_t *cond)
int	pthread_cond_wait (pthread_cond_t cond, pthread_mutex_t mutex)
int	pthread_create (pthread_t thread_id, const pthread_attr_t attr, void (start_fcn)(void ), void arg)
int	pthread_join (pthread_t thread_id, void **status_ptr)
int	pthread_kill (pthread_t thread_id, int signum)
int	pthread_mutex_lock (pthread_mutex_t *mutex)
int	pthread_mutex_unlock (pthread_mutex_t *mutex)
int	pthread_sigmask (int how, const sigset_t set, sigset_t oset)
void	pthread_testcancel (void)
char *	ptsname (int fd)
int	putenv (char *string)
ssize_t	pwrite (int fd, const void *buf, size_t nbytes off_t offset)
int	raise (int signum)
ssize_t	read (int fd, void *buf, size_t nbytes)
dirent *	readdir (DIR *dirp)
int	readdir_r (DIR restrict dirp, struct dirent entry, struct dirent **result)
ssize_t	readlink (const char path, char buf, size_t bufsize)
ssize_t	readv (int fd, const struct iovec *iov, int iovcnt)
ssize_t	recv (int socket_fd, void *buffer, size_t length, int flags)
ssize_t	recvfrom (int socket_fd, void buffer, size_t length, int flags, struct sockaddr sa, socklen_t *sa_len)
ssize_t	recvmsg (int socket_fd, struct msghdr *message, int flags)
int	rename (const char oldpath, const char newpath)
void	rewinddir (DIR *dirp)
int	rmdir (const char *path)
void	seekdir (DIR *dirp, long loc)
int	select (int nfds, fd_set readset, fd_set writeset, fd_set errorset, struct timeval timeout)
int	sem_close (sem_t *sem)
int	sem_destroy (sem_t *sem)
int	sem_getvalue (sem_t restrict sem, int valuep)
int	sem_init (sem_t *sem, int pshared, unsigned value)
sem_t *	sem_open (const char *name, int flags)
int	sem_post (sem_t *sem)
int	sem_timedwait (sem_t restrict sem, const struct timespec time)
int	sem_trywait (sem_t *sem)
int	sem_unlink (const char *name)
int	sem_wait (sem_t *sem)
int	semctl (int semid, int semnum, int cmd, union semun arg)
int	semget (key_t key, int nsems, int flags)
int	semop (int semid, struct sembuf *sops, size_t nsops)
ssize_t	send (int socket_fd, const void *data, size_t length, int flags)
ssize_t	sendmsg (int socket_fd, const struct msghdr *message, int flags)
ssize_t	sendto (int socket_fd, const void message, size_t length, int flags, const struct sockaddr sa, socklen_t sa_len)
int	setegid (gid_t gid)
int	setenv (const char var, const char val, int overwrite)
int	seteuid (uid_t uid)
int	setgid (gid_t gid)
void	sethostent (int stayopen)
int	setitimer (int which, const struct itimerval val, struct itimerval oval)
int	setjmp (jmp_buf loc_info)
void	setnetent (int stayopen)
int	setpgid (pid_t pid, pid_t pgid)
void	setprotoent (int stayopen)
int	setrlimit (int resource, const struct rlimit *rlp)
void	setservent (int stayopen)
pid_t	setsid (void)
int	setsockopt (int socket_fd, int level, int option, const void *value, socklen_t value_len)
int	setuid (uid_t uid)
int	shm_open (const char *name, int flags, mode_t perms)
int	shm_unlink (const char *name)
void *	shmat (int shmid, const void *shmaddr, int flags)
int	shmctl (int shmid, int cmd, struct shmid_ds *data)
int	shmdt (const void *shmaddr)
int	shmget (key_t key, size_t size, int flags)
int	shutdown (int socket_fd, int how)
int	sigaction (int signum, const struct sigaction act, struct sigaction oact)
int	sigaddset (sigset_t *set, int signum)
int	sigaltstack (const stack_t stack, stack_t ostack)
int	sigdelset (sigset_t *set, int signum)
int	sigemptyset (sigset_t *set)
int	sigfillset (sigset_t *set)
int	sighold (int signum,)
int	sigignore (int signum,)
int	siginterrupt (int signum, int flag)
int	sigismember (const sigset_t *set, int signum)
void	siglongjmp (sigjmp_buf loc_info, int val)
int	sigpause (int signum,)
int	sigpending (sigset_t *set)
int	sigprocmask (int how, const sigset_t set, sigset_t oset)
int	sigqueue (pid_t pid, int signum, const union sigval value)
int	sigrelse (int signum,)
int	sigsetjmp (sigjmp_buf loc_info, int savemask)
int	sigsuspend (const sigset_t *sigmask)
int	sigtimedwait (const sigset_t set, siginfo_t info, const struct timespec *ts)
int	sigwait (const sigset_t set, int signum)
int	sigwaitinfo (const sigset_t set, siginfo_t info)
unsigned	sleep (unsigned secs)
int	sockatmark (int socket_fd,)
int	socket (int domain, int type, int protocol)
int	socketpair (int domain, int type, int protocol int socket_vector[2])
int	stat (const char path, struct stat buf)
int	statvfs (const char path struct statvfs buf)
size_t	strftime (char buf, size_t bufsize, const char format, const struct tm *tmbuf)
char *	strptime (const char s, const char format, struct tm *tmbuf)
int	symlink (const char oldpath, const char newpath)
void	sync (void)
long	sysconf (int name)
int	system (const char *command)
int	tcdrain (int fd)
int	tcflow (int fd, int action)
int	tcflush (int fd, int queue)
int	tcgetattr (int fd, struct termios *tp)
pid_t	tcgetpgrp (int fd)
pid_t	tcgetsid (int fd)
int	tcsendbreak (int fd, int duration)
int	tcsetattr (int fd, int actions, const struct termios *tp)
int	tcsetpgrp (int fd, pid_t pgid)
long	telldir (DIR *dirp)
time_t	time (time_t *t)
int	timer_create (clockid_t clockid, struct sigevent sig, timer_t timer_id)
int	timer_delete (timer_t timer_id)
int	timer_getoverrun (timer_t timer_id)
int	timer_gettime (timer_t timer_id, struct itimerspec *val)
int	timer_settime (timer_t timer_id, int flags, const struct itimerspec val, struct itimerspec oval)
clock_t	times (struct tms *buffer)
int	truncate (const char *path, off_t length)
char *	ttyname (int fd)
int	ttyname_r (int fd, char *buf, size_t bufsize)
void	tzset (void)
long	ulimit (int cmd,...)
mode_t	umask (mode_t cmask)
int	umount (const char *target)
int	uname (struct utsname *name)
int	unlink (const char *path)
int	unlockpt (int fd)
int	unsetenv (const char *var)
int	usleep (useconds_t usecs)
int	utime (const char path, const struct utimbuf timbuf)
pid_t	vfork (void)
pid_t	wait (int *statusp,)
int	waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options)
pid_t	waitpid (pid_t pid, int *statusp, int options)
size_t	wcsftime (wchar_t buf, size_t bufsize, const wchar_t format, const struct tm *tmbuf)
ssize_t	write (int fd, const void *buf, size_t nbytes)
ssize_t	writev (int fd, const struct iovec *iov, int iovcnt)
Variables
void(*)(int)	signal (int signum, void(*act)(int))
void(*)(int)	sigset (int signum, void(*act)(int))
int	daylight
long	timezone
char *	tzname [2]