NAME

setruid, setrgid — set user and group ID

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <sys/types.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.