fork(2) download 
  1. #define _DEFAULT_SOURCE
  2. #define _BSD_SOURCE
  3. #include <stdio.h>
  4. #include <string.h>
  5. #include <fcntl.h>
  6. #include <dirent.h>
  7. #include <errno.h>
  8.  
  9. void
  10. dir_recurse (DIR *parent, int level)
  11. {
  12.     struct dirent *ent;
  13.     DIR *child;
  14.     int fd;
  15.  
  16.     while ((ent = readdir(parent)) != NULL) {
  17.         if ((strcmp(ent->d_name, ".") == 0) ||
  18.             (strcmp(ent->d_name, "..") == 0)) {
  19.             continue;
  20.         }
  21.         fd = openat(dirfd(parent), ent->d_name, O_RDONLY | O_DIRECTORY);
  22.         if (fd != -1) {
  23.             printf("%*s%s/\n", level, "", ent->d_name);
  24.             child = fdopendir(fd);
  25.             dir_recurse(child, level + 1);
  26.             closedir(child);
  27.         } else if (errno == ENOTDIR) {
  28.             printf("%*s%s\n", level, "", ent->d_name);
  29.         } else {
  30.             perror("open");
  31.         }
  32.     }
  33. }
  34.  
  35. int
  36. main (int argc, char *argv)
  37. {
  38.     DIR *root;
  39.  
  40.     root = opendir("..");
  41.     dir_recurse(root, 0);
  42.     closedir(root);
  43.  
  44.     return 0;
  45. }
Success #stdin #stdout 0s 5456KB
comments (?)
stdin 
Standard input is empty
stdout 
0al86f/
phRGOH/
 prog
T3gMUQ/
kJ1psI/
 prog
kQh2Pk/
 prog
PxAEbf/
 prog
QKT9Gv/
https://ideone.com/kJwvA2
language:
C (gcc 8.3)
created:
1 year ago
visibility:
public

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