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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU Lesser General Public
* License as published by the Free Software Foundation.
*
* This program 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 Lesser General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#ifndef O_BINARY
#define O_BINARY 0
#endif
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <glib.h>
#include <glib/gstdio.h>
#include "e-xml-utils.h"
#ifdef G_OS_WIN32
#define fsync(fd) 0
#endif
xmlDocPtr
e_xml_parse_file (const gchar *filename)
{
xmlDocPtr result = NULL;
GMappedFile *mapped_file;
mapped_file = g_mapped_file_new (filename, FALSE, NULL);
if (mapped_file) {
result = xmlParseMemory (g_mapped_file_get_contents (mapped_file),
g_mapped_file_get_length (mapped_file));
#if GLIB_CHECK_VERSION(2,21,3)
g_mapped_file_unref (mapped_file);
#else
g_mapped_file_free (mapped_file);
#endif
}
return result;
}
gint
e_xml_save_file (const gchar *filename, xmlDocPtr doc)
{
gchar *filesave;
xmlChar *xmlbuf;
gsize n, written = 0;
gint ret, fd, size;
gint errnosave;
gssize w;
gchar *dirname = g_path_get_dirname (filename);
gchar *basename = g_path_get_basename (filename);
gchar *savebasename = g_strconcat (".#", basename, NULL);
g_free (basename);
filesave = g_build_filename (dirname, savebasename, NULL);
g_free (savebasename);
g_free (dirname);
fd = g_open (filesave, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0600);
if (fd == -1) {
g_free (filesave);
return -1;
}
xmlDocDumpFormatMemory (doc, &xmlbuf, &size, TRUE);
if (size <= 0) {
close (fd);
g_unlink (filesave);
g_free (filesave);
errno = ENOMEM;
return -1;
}
n = (gsize) size;
do {
do {
w = write (fd, xmlbuf + written, n - written);
} while (w == -1 && errno == EINTR);
if (w > 0)
written += w;
} while (w != -1 && written < n);
xmlFree (xmlbuf);
if (written < n || fsync (fd) == -1) {
errnosave = errno;
close (fd);
g_unlink (filesave);
g_free (filesave);
errno = errnosave;
return -1;
}
while ((ret = close (fd)) == -1 && errno == EINTR)
;
if (ret == -1) {
g_free (filesave);
return -1;
}
if (g_rename (filesave, filename) == -1) {
errnosave = errno;
g_unlink (filesave);
g_free (filesave);
errno = errnosave;
return -1;
}
g_free (filesave);
return 0;
}
xmlNode *
e_xml_get_child_by_name (const xmlNode *parent, const xmlChar *child_name)
{
xmlNode *child;
g_return_val_if_fail (parent != NULL, NULL);
g_return_val_if_fail (child_name != NULL, NULL);
for (child = parent->xmlChildrenNode; child != NULL; child = child->next) {
if (xmlStrcmp (child->name, child_name) == 0) {
return child;
}
}
return NULL;
}
|
