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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 2005 Novell, Inc.
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, 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 char *filename)
{
xmlDocPtr result = NULL;
#if GLIB_CHECK_VERSION (2, 8, 0)
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));
g_mapped_file_free (mapped_file);
}
#else
result = xmlParseFile (filename);
#endif
return result;
}
int
e_xml_save_file (const char *filename, xmlDocPtr doc)
{
char *filesave, *xmlbuf;
size_t n, written = 0;
int ret, fd, size;
int errnosave;
ssize_t 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, (xmlChar **) &xmlbuf, &size, TRUE);
if (size <= 0) {
close (fd);
g_unlink (filesave);
g_free (filesave);
errno = ENOMEM;
return -1;
}
n = (size_t) 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;
}
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