components/num_files.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include <dirent.h>
   3 #include <errno.h>
   4 #include <stdio.h>
   5 #include <string.h>
   6
   7 #include "../util.h"
   8
   9 const char *
  10 num_files(const char *dir)
  11 {
  12         struct dirent *dp;
  13         DIR *fd;
  14         int num = 0;
  15
  16         if (!(fd = opendir(dir))) {
  17                 fprintf(stderr, "opendir '%s': %s\n", dir, strerror(errno));
  18                 return NULL;
  19         }
  20
  21         while ((dp = readdir(fd))) {
  22                 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) {
  23                         continue; /* skip self and parent */
  24                 }
  25                 num++;
  26         }
  27
  28         closedir(fd);
  29
  30         return bprintf("%d", num);
  31 }