RetroArch/libretro-common/net/net_http_parse.c
2020-01-31 15:43:42 +01:00

87 lines
2.9 KiB
C

/* Copyright (C) 2010-2020 The RetroArch team
*
* ---------------------------------------------------------------------------------------
* The following license statement only applies to this file (net_http_parse.c).
* ---------------------------------------------------------------------------------------
*
* Permission is hereby granted, free of charge,
* to any person obtaining a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdio.h>
#include <compat/strcasestr.h>
/**
* string_parse_html_anchor:
* @line : Buffer where the <a> tag is stored
* @link : Buffer to store the link URL in
* @name : Buffer to store the link URL in
* @link_size : Size of the link buffer including the NUL-terminator
* @name_size : Size of the name buffer including the NUL-terminator
*
* Parses an HTML anchor link stored in @line in the form of: <a href="/path/to/url">Title</a>
* The buffer pointed to by @link is filled with the URL path the link points to,
* and @name is filled with the title portion of the link.
*
* Returns: 0 if URL was parsed completely, otherwise 1.
**/
int string_parse_html_anchor(const char *line, char *link, char *name,
size_t link_size, size_t name_size)
{
if (!line || !link || !name)
return 1;
memset(link, 0, link_size);
memset(name, 0, name_size);
line = strcasestr(line, "<a href=\"");
if (!line)
return 1;
line += 9;
if (line && *line)
{
if (!*link)
{
const char *end = strstr(line, "\"");
if (!end)
return 1;
memcpy(link, line, end - line);
*(link + (end - line)) = '\0';
line += end - line;
}
if (!*name)
{
const char *start = strstr(line, "\">");
const char *end = start ? strstr(start, "</a>") : NULL;
if (!start || !end)
return 1;
memcpy(name, start + 2, end - start - 2);
*(name + (end - start - 2)) = '\0';
}
}
return 0;
}