fileops/listdir.c

   1 /*
   2  * Compile with:
   3  * gcc listdir.c -o listdir -Wall -W -Wextra -ansi -pedantic
   4  */
   5
   6 #include <dirent.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 int main(int argc, char *argv[])
  11 {
  12     struct dirent *pdent;
  13     DIR *pdir;
  14
  15     /* Check argument count */
  16     if (argc != 2) {
  17         fprintf(stderr, "Usage: %s directory\n", argv[0]);
  18         exit(EXIT_FAILURE);
  19     }
  20
  21     /*
  22      * Open directory named by argv[1], associate a directory stream
  23      * with it and return a pointer to it
  24      */
  25     if ((pdir = opendir(argv[1])) == NULL) {
  26         perror("opendir");
  27         exit(EXIT_FAILURE);
  28     }
  29
  30     /* Get all directory entries */
  31     while((pdent = readdir(pdir)) != NULL)
  32         printf("%s\n", pdent->d_name);
  33
  34     closedir(pdir);
  35     return EXIT_SUCCESS;
  36 }