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;
  15
  16         if (!(fd = opendir(dir))) {
  17                 fprintf(stderr, "opendir '%s': %s\n", dir, strerror(errno));
  18                 return NULL;
  19         }
  20
  21         num = 0;
  22         while ((dp = readdir(fd))) {
  23                 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) {
  24                         continue; /* skip self and parent */
  25                 }
  26                 num++;
  27         }
  28
  29         closedir(fd);
  30
  31         return bprintf("%d", num);
  32 }