From 7e0f021a9aec35fd8e6725e87e3313b101d26f5e Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Sun, 27 Jan 2008 11:37:44 +0100 Subject: Initial import (2.0.2-6) --- reference/C/MAN/seteuid.htm | 98 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 reference/C/MAN/seteuid.htm (limited to 'reference/C/MAN/seteuid.htm') diff --git a/reference/C/MAN/seteuid.htm b/reference/C/MAN/seteuid.htm new file mode 100644 index 0000000..de43dee --- /dev/null +++ b/reference/C/MAN/seteuid.htm @@ -0,0 +1,98 @@ +setreuid + +
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SETREUID(2)         Linux Programmer's Manual         SETREUID(2)
+

+
+
NAME
+
       setreuid, seteuid - set real and / or effective user ID
+
+
SYNOPSIS
+
       #include <unistd.h>
+
+       int setreuid(uid_t ruid, uid_t euid);
+       int seteuid(uid_t euid);
+
+
DESCRIPTION
+
       setreuid  sets real and effective user ID's of the current
+       process.  Un-privileged users may change the real user  ID
+       to the effective user ID and vice-versa.
+
+       Prior  to  Linux  1.1.37, the saved ID paradigm, when used
+       with setreuid or seteuid was broken.
+
+       Starting at 1.1.37, it is also possible to set the  effec-
+       tive user ID from the saved user ID.
+
+       Only the super-user may make other changes.
+
+       Supplying  a  value of -1 for either the real or effective
+       user ID forces the system to leave that ID unchanged.
+
+       Currently  (libc-4.x.x),  seteuid(euid)  is   functionally
+       equivalent to setreuid(-1, euid).
+
+       If the real user ID is changed or the effective user ID is
+       set to a value not equal to the previous real user ID, the
+       saved user ID will be set to the new effective user ID.
+
+
RETURN VALUE
+
       On  success,  zero is returned.  On error, -1 is returned,
+       and errno is set appropriately.
+
+
ERRORS
+
       EPERM   The current process  is  not  the  super-user  and
+               changes other than (i) swapping the effective user
+               ID with the real user ID or (ii)  setting  one  to
+               the value of the other or (iii) setting the effec-
+               tive user ID to the value of the saved user ID was
+               specified.
+
+
HISTORY
+
       The setreuid function call appeared in BSD 4.2.
+
+
CONFORMING TO
+
       BSD 4.3
+
+
+
+

SEE ALSO +

+getuid, +setuid, +

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+
Linux 1.1.38             2nd August 1994                        1
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