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/setegid.htm | 98 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 reference/C/MAN/setegid.htm (limited to 'reference/C/MAN/setegid.htm') diff --git a/reference/C/MAN/setegid.htm b/reference/C/MAN/setegid.htm new file mode 100644 index 0000000..d1dd511 --- /dev/null +++ b/reference/C/MAN/setegid.htm @@ -0,0 +1,98 @@ +setegid + +
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SETREGID(2)         Linux Programmer's Manual         SETREGID(2)
+

+
+
NAME
+
       setregid, setegid - set real and / or effective group ID
+
+
SYNOPSIS
+
       #include <unistd.h>
+
+       int setregid(gid_t rgid, gid_t egid);
+       int setegid(gid_t egid);
+
+
DESCRIPTION
+
       setregid sets real and effective group ID's of the current
+       process.  Un-privileged users may change the real group ID
+       to the effective group ID and vice-versa.
+
+       Prior  to  Linux  1.1.38, the saved ID paradigm, when used
+       with setregid or setegid was broken.  Starting at  1.1.38,
+       it is also possible to set the effective group 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
+       group ID forces the system to leave that ID unchanged.
+
+       Currently   (libc-4.x.x),  setegid(egid)  is  functionally
+       equivalent to setregid(-1, egid).
+
+       If the real group ID is changed or the effective group  ID
+       is set to a value not equal to the previous real group ID,
+       the saved group ID will be set to the new effective  group
+       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
+               group ID with the real group ID  or  (ii)  setting
+               one to the value of the other or (iii) setting the
+               effective group ID to the value of the saved group
+               ID was specified.
+
+
HISTORY
+
       The setregid function call appeared in BSD 4.2.
+
+
CONFORMING TO
+
       BSD 4.3
+
+
+
+

SEE ALSO +

+getgid, +setgid, +

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+
Linux 1.1.38             2nd August 1994                        1
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