tools/tests/unit_tests/pipe_test_10807398_src/child.c

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include <stdlib.h>
   4
   5 int main(int argc, char **argv)
   6 {
   7         int fd, r;
   8         char buf[32];
   9
  10         if (argc != 2) {
  11                 fprintf(stderr, "Usage: %s fd\n", argv[0]);
  12                 return 1;
  13         }
  14         fd = atoi(argv[1]);
  15
  16         printf("child read(%d)...\n", fd);
  17         r = read(fd, buf, sizeof buf - 1);
  18         if (r < 0)
  19                 perror("read");
  20         else {
  21                 buf[r] = 0;
  22                 printf("child read(%d) = \"%s\"\n", fd, buf);
  23         }
  24         close(fd);
  25         printf("child done\n");
  26         return 0;
  27 }