1 /* vi: set sw=4 ts=4: */
2 /*
3  * getlogin for uClibc
4  * Copyright (C) 2000-2006 by Erik Andersen <andersen@uclibc.org>
5  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
6  */
7 
8 #include <stdlib.h>
9 #include <string.h>
10 #include <unistd.h>
11 #include <stdio.h>
12 
13 
14 /* uClibc makes it policy to not mess with the utmp file whenever
15  * possible, since I consider utmp a complete waste of time.  Since
16  * getlogin() should never be used for security purposes, we kindly let
17  * the user specify whatever they want via the LOGNAME environment
18  * variable, or we return NULL if getenv() fails to find anything */
19 
getlogin(void)20 char * getlogin(void)
21 {
22 	return (getenv("LOGNAME"));
23 }
libc_hidden_def(getlogin)24 libc_hidden_def(getlogin)
25 
26 int getlogin_r(char *name, size_t len)
27 {
28 	char * foo = getenv("LOGNAME");
29 
30 	if (! foo)
31 		return -1;
32 
33 	strncpy(name, foo, len);
34 	name[len-1] = '\0';
35 	return 0;
36 }
37 
cuserid(char * s)38 char *cuserid(char *s)
39 {
40 	char *name = getlogin();
41 	if (s) {
42 		return(strcpy(s, name ? name : ""));
43 	}
44 	return name;
45 }
46