NAME

setuid, seteuid, setruid, setgid, setegid, setrgid − set user and group ID

SYNOPSIS

setuid(uid)
seteuid(euid)
setruid(ruid)

setgid(gid)
setegid(egid)
setrgid(rgid)

DESCRIPTION

Setuid (setgid) sets both the real and effective user ID (group ID) of the current process to as specified.

Seteuid (setegid) sets the effective user ID (group ID) of the current process.

Setruid (setrgid) sets the real user ID (group ID) of the current process.

These calls are only permitted to the super-user or if the argument is the real or effective ID. 

SEE ALSO

setreuid(2), setregid(2), getuid(2), getgid(2)

DIAGNOSTICS

Zero is returned if the user (group) ID is set; −1 is returned otherwise, with the global variable errno set as for setreuid or setregid. 

Sun Release 3.2  —  Last change: 17 July 1986