setruid, setrgid -- set user and group ID
Standard C Library (libc, -lc)
#include <unistd.h>
int
setruid(uid_t ruid);
int
setrgid(gid_t rgid);
The setruid() function (setrgid()) sets the real user ID (group ID) of
the current process.
Upon successful completion, the value 0 is returned; otherwise the
value -1 is returned and the global variable errno is set to indicate the
error.
The functions fail if:
[EPERM] The user is not the super user and the ID specified is
not the real or effective ID.
The use of these calls is not portable. Their use is discouraged; they
will be removed in the future.
getgid(2), getuid(2), setegid(2), seteuid(2), setgid(2), setuid(2)
The setruid() and setrgid() syscalls appeared in 4.2BSD and were dropped
in 4.4BSD.
FreeBSD 5.2.1 June 2, 1993 FreeBSD 5.2.1 [ Back ] |