strings.c

又一开源的解压缩chm格式文件的代码

/***************************************************************************
 *   Copyright (C) 2003 by zhong                                           *
 *   [e-mail]                                                        *
 *                                                                         *
 *   This program 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.                                   *
 ***************************************************************************/

#include <stdio.h>
#include <sys/types.h>
//#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>
#include "interface.h"
#include "strings.h"

// 此函数是为了一些不带“.hhc”文件的CHM文件而生。
// 函数读取#strings文件，取得第一个HTML文件后返回。
// 这个函数还在测试，结果可能不正确!

gchar *
get_topurl (ChmSee *window)
{
	int c;
	gchar *get_name_c = NULL;
	gchar *get_name = NULL;
	gchar *s;
	gchar *strings_file;
	FILE *strings;
	

	strings_file = g_strdup_printf("%s/#strings", window->tmpdir);

	strings = fopen( strings_file, "rb" );
	
	if (strings) {

		while(!feof(strings)) {
			c = fgetc(strings);
		
			if (c) {
				get_name_c = g_strdup_printf ("%c", c);
			
				if (get_name) {
					get_name = g_strdup_printf("%s%s", get_name, get_name_c);
				} else {
					get_name = g_strdup_printf("%s", get_name_c);
				}
			} else {
				if (get_name_c) {
					if ((s = g_strrstr(g_strdown(get_name) , "."))) {
						if (g_strcasecmp(".htm", s) == 0 || g_strcasecmp(".html", s) == 0) {
							fclose(strings);
							g_free(strings_file);
							g_free(get_name_c);
							return (get_name);
						}
					}

					get_name = NULL;
					get_name_c = NULL;
				}
			}
		}
		g_free(get_name_c);
		g_free(get_name);
		fclose(strings);
	}	
	
	g_free(strings_file);
	return (NULL);
}