netsurf/monkey/utils.c
2013-09-02 16:19:16 +01:00

140 lines
2.9 KiB
C

/*
* Copyright 2011 Daniel Silverstone <dsilvers@digital-scurf.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "utils/config.h"
#include "utils/utils.h"
#include "utils/url.h"
#include "utils/utf8.h"
char *path_to_url(const char *path)
{
int urllen;
char *url;
if (path == NULL) {
return NULL;
}
urllen = strlen(path) + FILE_SCHEME_PREFIX_LEN + 1;
url = malloc(urllen);
if (url == NULL) {
return NULL;
}
if (*path == '/') {
path++; /* file: paths are already absolute */
}
snprintf(url, urllen, "%s%s", FILE_SCHEME_PREFIX, path);
return url;
}
char *url_to_path(const char *url)
{
char *path;
char *respath;
url_func_result res; /* result from url routines */
res = url_path(url, &path);
if (res != URL_FUNC_OK) {
return NULL;
}
res = url_unescape(path, &respath);
free(path);
if (res != URL_FUNC_OK) {
return NULL;
}
return respath;
}
/**
* Return the filename part of a full path
*
* \param path full path and filename
* \return filename (will be freed with free())
*/
char *filename_from_path(char *path)
{
char *leafname;
leafname = strrchr(path, '/');
if (!leafname)
leafname = path;
else
leafname += 1;
return strdup(leafname);
}
/**
* Add a path component/filename to an existing path
*
* \param path buffer containing path + free space
* \param length length of buffer "path"
* \param newpart string containing path component to add to path
* \return true on success
*/
bool path_add_part(char *path, int length, const char *newpart)
{
if(path[strlen(path) - 1] != '/')
strncat(path, "/", length);
strncat(path, newpart, length);
return true;
}
void warn_user(const char *warning, const char *detail)
{
fprintf(stderr, "WARN %s %s\n", warning, detail);
}
void die(const char * const error)
{
fprintf(stderr, "DIE %s\n", error);
exit(EXIT_FAILURE);
}
utf8_convert_ret
utf8_to_local_encoding(const char *string, size_t len,
char **result)
{
*result = strndup(string, len);
return (*result == NULL) ? UTF8_CONVERT_NOMEM : UTF8_CONVERT_OK;
}
utf8_convert_ret
utf8_from_local_encoding(const char *string, size_t len,
char **result)
{
*result = strndup(string, len);
return (*result == NULL) ? UTF8_CONVERT_NOMEM : UTF8_CONVERT_OK;
}