blob: e3b8ed302156dd30cd9247faf68a4805c81de3bb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/*
* libdpkg - Debian packaging suite library routines
* string.c - string handling routines
*
* Copyright © 1995 Ian Jackson <ian@chiark.greenend.org.uk>
* Copyright © 2008, 2009 Guillem Jover <guillem@debian.org>
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <compat.h>
#include <string.h>
#include <dpkg/string.h>
/**
* Escape format characters from a string.
*
* @param dst The destination string.
* @param src The source string.
* @param n The size of the destination buffer.
*
* @return The end of the destination string.
*/
char *
str_escape_fmt(char *dst, const char *src, size_t n)
{
char *d = dst;
const char *s = src;
if (n == 0)
return d;
while (*s) {
if (*s == '%') {
if (n-- <= 2)
break;
*d++ = '%';
}
if (n-- <= 1)
break;
*d++ = *s++;
}
*d = '\0';
return d;
}
/**
* Check and strip possible surrounding quotes in string.
*
* @param str The string to act on.
*
* @return A pointer to str or NULL if the quotes were unbalanced.
*/
char *
str_strip_quotes(char *str)
{
if (str[0] == '"' || str[0] == '\'') {
size_t str_len = strlen(str);
if (str[0] != str[str_len - 1])
return NULL;
/* Remove surrounding quotes. */
str[str_len - 1] = '\0';
str++;
}
return str;
}
|
