100 lines
2.9 KiB
Groff
100 lines
2.9 KiB
Groff
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.\" Copyright (c) 1983, 1991 Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)setuid.3 6.4 (Berkeley) 4/19/91
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.\"
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.Dd April 19, 1991
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.Dt SETUID 3
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.Os BSD 4.2
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.Sh NAME
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.Nm setuid ,
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.Nm seteuid ,
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.Nm setruid ,
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.Nm setgid ,
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.Nm setegid ,
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.Nm setrgid
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.Nd set user and group ID
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.Sh SYNOPSIS
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.Fd #include <sys/types.h>
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.Ft int
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.Fn setuid "uid_t uid"
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.Ft int
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.Fn seteuid "uid_t euid"
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.Ft int
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.Fn setruid "uid_t ruid"
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.Ft int
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.Fn setgid "gid_t gid"
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.Ft int
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.Fn setegid "gid_t egid"
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.Ft int
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.Fn setrgid "gid_t rgid"
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.Sh DESCRIPTION
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The
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.Fn setuid
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function
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.Pq Fn setgid
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sets both the real and effective
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user ID (group ID) of the current process
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as specified.
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.Pp
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The
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.Fn seteuid
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function
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.Pq Fn setegid
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sets the effective user ID (group ID) of the
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current process.
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.Pp
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The
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.Fn setruid
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function
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.Pq Fn setrgid
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sets the real user ID (group ID) of the
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current process.
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.Sh RETURN VALUES
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Upon success, these functions return 0;
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otherwise \-1 is returned.
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.Pp
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If the user is not the super user, or the uid
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specified is not the real or effective ID, these
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functions return \-1.
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.Sh SEE ALSO
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.Xr setreuid 2 ,
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.Xr setregid 2 ,
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.Xr getuid 2 ,
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.Xr getgid 2
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.Sh HISTORY
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A
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.Fn setuid
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and
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.Fn setgid
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syscall appeared in
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.At v6 .
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