00001 /*
00002     inet_addr example
00003     AUP2, Sec. 8.02.3
00004 
00005     Copyright 2003 by Marc J. Rochkind. All rights reserved.
00006     May be copied only for purposes and under conditions described
00007     on the Web page www.basepath.com/aup/copyright.htm.
00008 
00009     The Example Files are provided "as is," without any warranty;
00010     without even the implied warranty of merchantability or fitness
00011     for a particular purpose. The author and his publisher are not
00012     responsible for any damages, direct or incidental, resulting
00013     from the use or non-use of these Example Files.
00014 
00015     The Example Files may contain defects, and some contain deliberate
00016     coding mistakes that were included for educational reasons.
00017     You are responsible for determining if and how the Example Files
00018     are to be used.
00019 
00020 */
00021 #include "defs.h"
00022 #include <sys/socket.h>
00023 #include <netinet/in.h>
00024 #include <arpa/inet.h>
00025 /*[pgm]*/
00026 #define REQUEST "GET / HTTP/1.0\r\n\r\n"
00027 
00028 int main(void)
00029 {
00030     struct sockaddr_in sa;
00031     int fd_skt;
00032     char buf[1000];
00033     ssize_t nread;
00034 
00035     sa.sin_family = AF_INET;
00036     sa.sin_port = htons(80);
00037     sa.sin_addr.s_addr =  inet_addr("216.109.125.70");
00038     ec_neg1( fd_skt = socket(AF_INET, SOCK_STREAM, 0) )
00039     ec_neg1( connect(fd_skt, (struct sockaddr *)&sa, sizeof(sa)) )
00040     ec_neg1( write(fd_skt, REQUEST, strlen(REQUEST) ) )
00041     ec_neg1( nread = read(fd_skt, buf, sizeof(buf)) )
00042     (void)write(STDOUT_FILENO, buf, nread);
00043     ec_neg1( close(fd_skt) )
00044     exit(EXIT_SUCCESS);
00045 
00046 EC_CLEANUP_BGN
00047     exit(EXIT_FAILURE);
00048 EC_CLEANUP_END
00049 }
00050 /*[]*/
00051 
00052 int main1(void)
00053 {
00054     struct sockaddr_in sa;
00055     int fd_skt;
00056     char buf[1000];
00057     ssize_t nread;
00058 
00059     sa.sin_family = AF_INET;
00060     sa.sin_port = htons(80);
00061     sa.sin_addr.s_addr =  htonl((216UL << 24) + (109UL << 16) +
00062       (125UL << 8) + 70UL); /* 216.109.125.70 */
00063 printf("%ld %lx\n", (long)sa.sin_addr.s_addr, (long)sa.sin_addr.s_addr);
00064     ec_neg1( fd_skt = socket(AF_INET, SOCK_STREAM, 0) )
00065     ec_neg1( connect(fd_skt, (struct sockaddr *)&sa, sizeof(sa)) )
00066     ec_neg1( write(fd_skt, REQUEST, strlen(REQUEST) ) )
00067     ec_neg1( nread = read(fd_skt, buf, sizeof(buf)) )
00068     (void)write(STDOUT_FILENO, buf, nread);
00069     ec_neg1( close(fd_skt) )
00070     exit(EXIT_SUCCESS);
00071 
00072 EC_CLEANUP_BGN
00073     exit(EXIT_FAILURE);
00074 EC_CLEANUP_END
00075 }
c8/sktcl.c
