source: trunk/minix/lib/posix/_geteuid.c@ 20

Last change on this file since 20 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a

File size: 442 bytes
Line 
1#include <lib.h>
2#define geteuid _geteuid
3#include <unistd.h>
4
5PUBLIC uid_t geteuid()
6{
7 message m;
8
9 /* POSIX says that this function is always successful and that no
10 * return value is reserved to indicate an error. Minix syscalls
11 * are not always successful and Minix returns the unreserved value
12 * (uid_t) -1 when there is an error.
13 */
14 if (_syscall(MM, GETUID, &m) < 0) return ( (uid_t) -1);
15 return( (uid_t) m.m2_i1);
16}
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