src/t_readdir_1.c

   1 #include <unistd.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <dirent.h>
   6 #include <fcntl.h>
   7 #include <sys/stat.h>
   8 #include <sys/types.h>
   9
  10 int main(int argc, char *argv[])
  11 {
  12         int fd;
  13         int ret;
  14         DIR *dir;
  15         struct dirent *ptr;
  16
  17         dir = opendir(argv[1]);
  18
  19         fd = dirfd(dir);
  20         if (fd < 0) {
  21                 perror("Failed to get dirfd!");
  22                 exit(EXIT_FAILURE);
  23         }
  24         ret = fork();
  25
  26         if (ret == 0) {
  27                 char buf[100];
  28
  29                 while(1)
  30                         read(fd, buf, 100);
  31
  32         } else {
  33                 while (1) {
  34                         int ret2 = lseek(fd, 0, SEEK_SET);
  35                         if (ret2 == -1) {
  36                                 perror("Seek failed!");
  37                                 exit(EXIT_FAILURE);
  38                         }
  39                         while ((ptr = readdir(dir)))
  40                                         ;
  41                 }
  42         }
  43
  44         closedir(dir);
  45         exit(EXIT_SUCCESS);
  46 }