Is there a C function to get permissions of a file?

Question

I am writing a c program to be run on UNIX, and attempting to utilize the chmod command. After consulting the man pages, i know that chmod needs two parameters. first is the

Answer 1

The permission bits can be ascertained using the st_mode field of the struct returned by the stat function. The individual bits can be extracted using the constants S_IRUSR (User Read), S_IWUSR (User Write), S_IRGRP (Group Read) etc.

Example:

struct stat statRes;
if(stat(file, &statRes) < 0)return 1;
mode_t bits = statRes.st_mode;
if((bits & S_IRUSR) == 0){
    //User doesn't have read privilages
}

In terms of passing this to chmod, mode_t is just a typedef of a uint_32, so that should be simple enough.