xref: /titanic_50/usr/src/lib/pam_modules/authtok_check/stringlib.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244) 
1 /*
2  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
3  * Use is subject to license terms.
4  */
5 
6 #pragma ident	"%Z%%M%	%I%	%E% SMI"
7 
8 /*
9  * This program is copyright Alec Muffett 1993. The author disclaims all
10  * responsibility or liability with respect to it's usage or its effect
11  * upon hardware or computer systems, and maintains copyright as set out
12  * in the "LICENCE" document which accompanies distributions of Crack v4.0
13  * and upwards.
14  */
15 
16 #include "packer.h"
17 
18 
19 char
Chop(register char * string)20 Chop(register char *string)
21 {
22 	register char c;
23 	register char *ptr;
24 
25 	c = '\0';
26 
27 	for (ptr = string; *ptr; ptr++);
28 	if (ptr != string) {
29 		c = *(--ptr);
30 		*ptr = '\0';
31 	}
32 	return (c);
33 }
34 
35 char
Chomp(register char * string)36 Chomp(register char *string)
37 {
38 	register char c;
39 	register char *ptr;
40 
41 	c = '\0';
42 
43 	for (ptr = string; *ptr; ptr++)
44 		;
45 	if (ptr != string && isspace(*(--ptr))) {
46 		c = *ptr;
47 		*ptr = '\0';
48 	}
49 	return (c);
50 }
51 
52 
53 char *
Trim(register char * string)54 Trim(register char *string)
55 {
56 	register char *ptr;
57 
58 	for (ptr = string; *ptr; ptr++);
59 
60 	while ((--ptr >= string) && isspace(*ptr));
61 
62 	*(++ptr) = '\0';
63 
64 	return (ptr);
65 }
66