Creating a new directory in C

Question

I want to write a program that checks for the existence of a directory; if that directory does not exist then it creates the directory and a log file inside of it, but if the directory already exists, then it just creates a new log file in that folder.

How would I do this in C with Linux?

Answer 1

Look at stat for checking if the directory exists,

And mkdir, to create a directory.

#include <sys/types.h> #include <sys/stat.h> #include <unistd.h>  struct stat st = {0};  if (stat("/some/directory", &st) == -1) {     mkdir("/some/directory", 0700); } 

You can see the manual of these functions with the man 2 stat and man 2 mkdir commands.

Answer 2

You can use mkdir:

$ man 2 mkdir

#include <sys/stat.h> #include <sys/types.h>  int result = mkdir("/home/me/test.txt", 0777);