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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/* libguestfs
* Copyright (C) 2013 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* An expandable NULL-terminated vector of strings (like C<argv>).
*
* Use the C<DECLARE_STRINGSBUF> macro to declare the stringsbuf.
*
* Note: Don't confuse this with stringsbuf in the daemon which
* is a different type with different methods.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include "guestfs.h"
#include "guestfs-internal.h"
/**
* Add a string to the end of the list.
*
* This doesn't call L<strdup(3)> on the string, so the string itself
* is stored inside the vector.
*/
void
guestfs_int_add_string_nodup (guestfs_h *g, struct stringsbuf *sb, char *str)
{
if (sb->size >= sb->alloc) {
sb->alloc += 64;
sb->argv = safe_realloc (g, sb->argv, sb->alloc * sizeof (char *));
}
sb->argv[sb->size] = str;
sb->size++;
}
/**
* Add a string to the end of the list.
*
* This makes a copy of the string.
*/
void
guestfs_int_add_string (guestfs_h *g, struct stringsbuf *sb, const char *str)
{
guestfs_int_add_string_nodup (g, sb, safe_strdup (g, str));
}
/**
* Add a string to the end of the list.
*
* Uses an sprintf-like format string when creating the string.
*/
void
guestfs_int_add_sprintf (guestfs_h *g, struct stringsbuf *sb,
const char *fs, ...)
{
va_list args;
char *str;
int r;
va_start (args, fs);
r = vasprintf (&str, fs, args);
va_end (args);
if (r == -1)
g->abort_cb ();
guestfs_int_add_string_nodup (g, sb, str);
}
/**
* Finish the string buffer.
*
* This adds the terminating NULL to the end of the vector.
*/
void
guestfs_int_end_stringsbuf (guestfs_h *g, struct stringsbuf *sb)
{
guestfs_int_add_string_nodup (g, sb, NULL);
}
/**
* Free the string buffer and the strings.
*/
void
guestfs_int_free_stringsbuf (struct stringsbuf *sb)
{
size_t i;
if (sb->argv) {
for (i = 0; i < sb->size; ++i)
free (sb->argv[i]);
}
free (sb->argv);
}
void
guestfs_int_cleanup_free_stringsbuf (struct stringsbuf *sb)
{
guestfs_int_free_stringsbuf (sb);
}
|
