num_files.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include <dirent.h>
   3 #include <err.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)) == NULL) {
  17                 warn("Failed to get number of files in directory %s", dir);
  18                 return NULL;
  19         }
  20
  21         while ((dp = readdir(fd)) != NULL) {
  22                 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
  23                         continue; /* skip self and parent */
  24                 num++;
  25         }
  26
  27         closedir(fd);
  28
  29         return bprintf("%d", num);
  30 }