SETRUID(3)

NAME
setruid, setrgid - set user and group ID

LIBRARY
libc

SYNOPSIS
#include <unistd.h>
int
setruid(uid_t ruid);
int
setrgid(gid_t rgid);

DESCRIPTION
The setruid() function (setrgid()) sets the real user ID (group ID) of the current process.

RETURN VALUES
Upon success, these functions return 0; otherwise -1 is returned.

If the user is not the super user, or the uid specified is not the real or effective ID, these functions return -1.

The use of these calls is not portable. Their use is discouraged; they will be removed in the future.

SEE ALSO
getgid(2), getuid(2), setegid(2), seteuid(2), setgid(2), setuid(2)

HISTORY
The setruid() and setrgid() syscalls appeared in 4.2BSD and were dropped in 4.4BSD.