Search for the owner and group of files (as a string)

Question

I am trying to get owner line C and file group. After I do stat(), I will get the user id and group id, but how do I get the name?

Answer 1

You can use getgrgid()to get the group name and getpwuid()to get the username:

#include <pwd.h>
#include <grp.h>

/* ... */

struct group *grp;
struct passwd *pwd;

grp = getgrgid(gid);
printf("group: %s\n", grp->gr_name);

pwd = getpwuid(uid);
printf("username: %s\n", pwd->pw_name);

Answer 2

Try using getpwuid ();

http://linux.die.net/man/3/getpwuid