00001 #include <sys/types.h>
00002 #include <stdio.h>
00003 #include <stdlib.h>
00004 #include <unistd.h>
00005 
00006 int main()
00007 {
00008         char c;
00009         int descfich[2];
00010         if (pipe(descfich))   return EXIT_FAILURE;
00011 
00012         switch (fork()) {
00013         case -1:
00014                 return EXIT_FAILURE;
00015         case 0: /* fils */
00016                 close(descfich[1]);
00017                 while(read(descfich[0], &c, 1) == 1) {
00018                         putchar(c);
00019                 }
00020                 return 0;
00021         default: /* père */
00022                 close(descfich[0]);
00023                 while (read(STDIN_FILENO, &c, 1) == 1) {
00024                         write(descfich[1], &c, 1);
00025                 }
00026                 return 0;
00027         }
00028 }