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/*
* uriparser - RFC 3986 URI parsing library
*
* Copyright (C) 2025, Sebastian Pipping <sebastian@pipping.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file UriSetHostCommon.c
* Holds code used by multiple SetHost* functions.
* NOTE: This source file includes itself twice.
*/
/* What encodings are enabled? */
#include <uriparser/UriDefsConfig.h>
#if (!defined(URI_PASS_ANSI) && !defined(URI_PASS_UNICODE))
/* Include SELF twice */
# ifdef URI_ENABLE_ANSI
# define URI_PASS_ANSI 1
# include "UriSetHostCommon.c"
# undef URI_PASS_ANSI
# endif
# ifdef URI_ENABLE_UNICODE
# define URI_PASS_UNICODE 1
# include "UriSetHostCommon.c"
# undef URI_PASS_UNICODE
# endif
#else
# ifdef URI_PASS_ANSI
# include <uriparser/UriDefsAnsi.h>
# else
# include <uriparser/UriDefsUnicode.h>
# include <wchar.h>
# endif
# ifndef URI_DOXYGEN
# include <uriparser/Uri.h>
# include <uriparser/UriIp4.h>
# include "UriCommon.h"
# include "UriMemory.h"
# include "UriSetHostBase.h"
# include "UriSetHostCommon.h"
# endif
# include <assert.h>
int URI_FUNC(InternalSetHostMm)(URI_TYPE(Uri) * uri, UriHostType hostType,
const URI_CHAR * first, const URI_CHAR * afterLast,
UriMemoryManager * memory) {
/* Superficial input validation (before making any changes) */
if ((uri == NULL) || ((first == NULL) != (afterLast == NULL))) {
return URI_ERROR_NULL;
}
URI_CHECK_MEMORY_MANAGER(memory); /* may return */
/* The RFC 3986 grammar reads:
* authority = [ userinfo "@" ] host [ ":" port ]
* So no user info or port without a host. */
if (first == NULL) {
if (uri->userInfo.first != NULL) {
return URI_ERROR_SETHOST_USERINFO_SET;
} else if (uri->portText.first != NULL) {
return URI_ERROR_SETHOST_PORT_SET;
}
}
/* Syntax-check the new value */
if (first != NULL) {
switch (hostType) {
case URI_HOST_TYPE_IP4:
if (URI_FUNC(IsWellFormedHostIp4)(first, afterLast) == URI_FALSE) {
return URI_ERROR_SYNTAX;
}
break;
case URI_HOST_TYPE_IP6: {
const int res = URI_FUNC(IsWellFormedHostIp6Mm)(first, afterLast, memory);
assert((res == URI_SUCCESS) || (res == URI_ERROR_SYNTAX)
|| (res == URI_ERROR_MALLOC));
if (res != URI_SUCCESS) {
return res;
}
} break;
case URI_HOST_TYPE_IPFUTURE: {
const int res =
URI_FUNC(IsWellFormedHostIpFutureMm)(first, afterLast, memory);
assert((res == URI_SUCCESS) || (res == URI_ERROR_SYNTAX)
|| (res == URI_ERROR_MALLOC));
if (res != URI_SUCCESS) {
return res;
}
} break;
case URI_HOST_TYPE_REGNAME:
if (URI_FUNC(IsWellFormedHostRegName)(first, afterLast) == URI_FALSE) {
return URI_ERROR_SYNTAX;
}
break;
default:
assert(0 && "Unsupported URI host type");
}
}
/* Clear old value */
const UriBool hadHostBefore = URI_FUNC(HasHost)(uri);
if (uri->hostData.ipFuture.first != NULL) {
/* NOTE: .hostData.ipFuture holds the very same range pointers
* as .hostText; we must not free memory twice. */
uri->hostText.first = NULL;
uri->hostText.afterLast = NULL;
if ((uri->owner == URI_TRUE)
&& (uri->hostData.ipFuture.first != uri->hostData.ipFuture.afterLast)) {
memory->free(memory, (URI_CHAR *)uri->hostData.ipFuture.first);
}
uri->hostData.ipFuture.first = NULL;
uri->hostData.ipFuture.afterLast = NULL;
} else if (uri->hostText.first != NULL) {
if ((uri->owner == URI_TRUE)
&& (uri->hostText.first != uri->hostText.afterLast)) {
memory->free(memory, (URI_CHAR *)uri->hostText.first);
}
uri->hostText.first = NULL;
uri->hostText.afterLast = NULL;
}
if (uri->hostData.ip4 != NULL) {
memory->free(memory, uri->hostData.ip4);
uri->hostData.ip4 = NULL;
} else if (uri->hostData.ip6 != NULL) {
memory->free(memory, uri->hostData.ip6);
uri->hostData.ip6 = NULL;
}
/* Already done setting? */
if (first == NULL) {
/* Yes, but disambiguate as needed */
if (hadHostBefore == URI_TRUE) {
if (uri->pathHead != NULL) {
uri->absolutePath = URI_TRUE;
}
const UriBool success =
URI_FUNC(EnsureThatPathIsNotMistakenForHost)(uri, memory);
return (success == URI_TRUE) ? URI_SUCCESS : URI_ERROR_MALLOC;
}
return URI_SUCCESS;
}
assert(first != NULL);
/* Ensure owned */
if (uri->owner == URI_FALSE) {
const int res = URI_FUNC(MakeOwnerMm)(uri, memory);
if (res != URI_SUCCESS) {
return res;
}
}
assert(uri->owner == URI_TRUE);
/* Apply new value; NOTE that .hostText is set for all four host types */
URI_TYPE(TextRange) sourceRange;
sourceRange.first = first;
sourceRange.afterLast = afterLast;
if (URI_FUNC(CopyRangeAsNeeded)(&uri->hostText, &sourceRange, memory) == URI_FALSE) {
return URI_ERROR_MALLOC;
}
uri->absolutePath = URI_FALSE; /* always URI_FALSE for URIs with host */
/* Fill .hostData as needed */
switch (hostType) {
case URI_HOST_TYPE_IP4: {
uri->hostData.ip4 = memory->malloc(memory, sizeof(UriIp4));
if (uri->hostData.ip4 == NULL) {
return URI_ERROR_MALLOC;
}
const int res =
URI_FUNC(ParseIpFourAddress)(uri->hostData.ip4->data, first, afterLast);
# if defined(NDEBUG)
(void)res; /* i.e. mark as unused */
# else
assert(res == URI_SUCCESS); /* because checked for well-formedness earlier */
# endif
} break;
case URI_HOST_TYPE_IP6: {
uri->hostData.ip6 = memory->malloc(memory, sizeof(UriIp6));
if (uri->hostData.ip6 == NULL) {
return URI_ERROR_MALLOC;
}
const int res =
URI_FUNC(ParseIpSixAddressMm)(uri->hostData.ip6, first, afterLast, memory);
assert((res == URI_SUCCESS)
|| (res == URI_ERROR_MALLOC)); /* because checked for
well-formedness earlier */
if (res != URI_SUCCESS) {
return res;
}
} break;
case URI_HOST_TYPE_IPFUTURE:
uri->hostData.ipFuture.first = uri->hostText.first;
uri->hostData.ipFuture.afterLast = uri->hostText.afterLast;
break;
case URI_HOST_TYPE_REGNAME:
break;
default:
assert(0 && "Unsupported URI host type");
}
return URI_SUCCESS;
}
#endif
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