C traverse directory with callback

traverse_dir.c

#include <stdio.h>
#include <stdio.h>
#include <string.h>
#include <sys/dir.h>
#include <dirent.h>

int traverse_dir(char *path, int level, int (*callback)(struct dirent *, int))
{
  DIR *handle = opendir(path);
  int path_len;
  struct dirent *dp;
  while ((dp = readdir(handle)) != 0) {
    if (strcmp(".", dp->d_name) == 0 || strcmp("..", dp->d_name) == 0) continue;
    if (callback(dp, level) == 0) goto LEAVE_FAILED;
    if (dp->d_type == DT_DIR) {
      path_len = strlen(path);
      snprintf(path, 1024, "%s/%s", path, dp->d_name);
      if (traverse_dir(path, level + 1, callback) == 0) goto LEAVE_FAILED;
      path[path_len] = '\0';
    }
  }
LEAVE_SUCCESS:
  closedir(handle);
  return 1;
LEAVE_FAILED:
  closedir(handle);
  return 0;
}


int print_dir(struct dirent *dp, int level)
{
  printf("->%s\n", dp->d_name);
  return 1;
}


int main(int argc, char **argv)
{
  char path[1024] = {0};
  strcpy(path, ".");
  traverse_dir(path, 0, print_dir);

  return 0;
}