jehanne/sys/src/lib/c/port/getuser.c

30 lines
691 B
C

/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
#include <u.h>
#include <libc.h>
char *
jehanne_getuser(void)
{
static char user[64];
int fd;
int n;
fd = open("/dev/user", OREAD);
if(fd < 0)
return "none";
n = read(fd, user, (sizeof user)-1);
close(fd);
if(n <= 0)
return "none";
user[n] = '\0';
return user;
}