1 /*
2 * Copyright (c) 2001 Proofpoint, Inc. and its suppliers.
3 * All rights reserved.
4 *
5 * By using this file, you agree to the terms and conditions set
6 * forth in the LICENSE file which can be found at the top level of
7 * the sendmail distribution.
8 *
9 */
10
11 #include <sm/gen.h>
12 SM_RCSID("@(#)$Id: string.c,v 1.4 2013-11-22 20:51:43 ca Exp $")
13
14 #include <ctype.h>
15 #include <errno.h>
16
17 #include <sm/string.h>
18
19 /*
20 ** STRIPQUOTES -- Strip quotes & quote bits from a string.
21 **
22 ** Runs through a string and strips off unquoted quote
23 ** characters and quote bits. This is done in place.
24 **
25 ** Parameters:
26 ** s -- the string to strip.
27 **
28 ** Returns:
29 ** none.
30 */
31
32 void
33 stripquotes(s)
34 char *s;
35 {
36 register char *p;
37 register char *q;
38 register char c;
39
40 if (s == NULL)
41 return;
42
43 p = q = s;
44 do
45 {
46 c = *p++;
47 if (c == '\\')
48 c = *p++;
49 else if (c == '"')
50 continue;
51 *q++ = c;
52 } while (c != '\0');
53 }
54
55 /*
56 ** UNFOLDSTRIPQUOTES -- Strip quotes & quote bits from a string.
57 **
58 ** Parameters:
59 ** s -- the string to strip.
60 **
61 ** Returns:
62 ** none.
63 */
64
65 void
unfoldstripquotes(s)66 unfoldstripquotes(s)
67 char *s;
68 {
69 char *p, *q, c;
70
71 if (s == NULL)
72 return;
73
74 p = q = s;
75 do
76 {
77 c = *p++;
78 if (c == '\\' || c == '\n')
79 c = *p++;
80 else if (c == '"')
81 continue;
82 *q++ = c;
83 } while (c != '\0');
84 }
85