minix/lib/libc/sys-minix/geteuid.c
Lionel Sambuc ba70f58845 Message type for PM_GETUID
Change-Id: I9a04f5a8b0e9099e0df543bcf76b2610a8803b9a
2014-07-28 17:05:36 +02:00

20 lines
515 B
C

#include <sys/cdefs.h>
#include "namespace.h"
#include <lib.h>
#include <string.h>
#include <unistd.h>
uid_t geteuid(void)
{
message m;
memset(&m, 0, sizeof(m));
/* POSIX says that this function is always successful and that no
* return value is reserved to indicate an error. Minix syscalls
* are not always successful and Minix returns the unreserved value
* (uid_t) -1 when there is an error.
*/
if (_syscall(PM_PROC_NR, PM_GETUID, &m) < 0) return(-1);
return(m.m_pm_lc_getuid.euid);
}