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cunixworking-directory

How to get the current directory in a C program?

I'm making a C program where I need to get the directory that the program is started from. This program is written for UNIX computers. I've been looking at opendir() and telldir(), but telldir() returns a off_t (long int), so it really doesn't help me.

How can I get the current path in a string (char array)?

Solution

  • Have you had a look at getcwd()?

    #include <unistd.h>
char *getcwd(char *buf, size_t size);

    Simple example:

    #include <unistd.h>
#include <stdio.h>
#include <linux/limits.h>

int main() {
   char cwd[PATH_MAX];
   if (getcwd(cwd, sizeof(cwd)) != NULL) {
       printf("Current working dir: %s\n", cwd);
   } else {
       perror("getcwd() error");
       return 1;
   }
   return 0;
}