60 lines
1.3 KiB
Groff
60 lines
1.3 KiB
Groff
|
|
|
|
SETUID(2) Minix Programmer's Manual SETUID(2)
|
|
|
|
|
|
NAME
|
|
setuid, setgid - set user or group ID's
|
|
|
|
SYNOPSIS
|
|
#include <sys/types.h>
|
|
|
|
int setuid(uid_t uid)
|
|
int setgid(gid_t gid)
|
|
|
|
DESCRIPTION
|
|
Setuid sets the real and effective user ID's of the current process to
|
|
uid. Unprivileged users may only change both user ID's to the real user
|
|
ID; only the super-user may make other changes. Setgid does the same for
|
|
the real and effective group ID's.
|
|
|
|
Minix-vmd allows an unprivileged user to change ID's to the original real
|
|
or effective ID as they were at the time the process was executed.
|
|
Setgid may also set the group ID's to any of the additional group ID's.
|
|
If one of the remembered user ID's was 0 then any user or group ID may be
|
|
chosen.
|
|
|
|
RETURN VALUE
|
|
Upon successful completion, a value of 0 is returned. Otherwise, a value
|
|
of -1 is returned and errno is set to indicate the error.
|
|
|
|
ERRORS
|
|
|
|
[EPERM] The current process is not the super-user and a change
|
|
other than one of the allowed changes was attempted.
|
|
|
|
SEE ALSO
|
|
getuid(2), getgid(2).
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4BSD May 9, 1985 1
|
|
|