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C Code > Recursive directory walk

Recursive directory walk

#include <ftw.h>
#include <stdio.h>
#include <sys/stat.h>

int list(const char *name, const struct stat *status, int type);

int main(int argc, char *argv[]) {
 if(argc == 1)
  ftw(".", list, 1);
 else
  ftw(argv[1], list, 1);

 return 0;
}

int list(const char *name, const struct stat *status, int type) {
 if(type == FTW_NS)
  return 0;

 if(type == FTW_F)
  printf("0%3o\t%s\n", status->st_mode&0777, name);
 
 if(type == FTW_D && strcmp(".", name) != 0)
  printf("0%3o\t%s/\n", status->st_mode&0777, name);

 return 0;
}

// FTW_F    The object is a  file
// FTW_D    ,,    ,,   ,, ,, directory
// FTW_DNR  ,,    ,,   ,, ,, directory that could not be read
// FTW_SL   ,,    ,,   ,, ,, symbolic link
// FTW_NS   The object is NOT a symbolic link and is one for 
//          which stat() could not be executed