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Diffstat (limited to 'src/UriSetHostIpFuture.c')
| -rw-r--r-- | src/UriSetHostIpFuture.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/UriSetHostIpFuture.c b/src/UriSetHostIpFuture.c new file mode 100644 index 0000000..c5044c4 --- /dev/null +++ b/src/UriSetHostIpFuture.c @@ -0,0 +1,157 @@ +/* + * 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. + */ + +/* 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 "UriSetHostIpFuture.c" +# undef URI_PASS_ANSI +# endif +# ifdef URI_ENABLE_UNICODE +# define URI_PASS_UNICODE 1 +# include "UriSetHostIpFuture.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 "UriMemory.h" +# include "UriSetHostBase.h" +# include "UriSetHostCommon.h" +# endif + +# include <assert.h> +# include <string.h> /* for memcpy */ + +int URI_FUNC(IsWellFormedHostIpFutureMm)(const URI_CHAR * first, + const URI_CHAR * afterLast, + UriMemoryManager * memory) { + if ((first == NULL) || (afterLast == NULL)) { + return URI_ERROR_NULL; + } + + URI_CHECK_MEMORY_MANAGER(memory); /* may return */ + + /* Are we dealing with potential IPv6 input? */ + if (first < afterLast) { + switch (first[0]) { + case _UT('v'): + case _UT('V'): + break; + default: + return URI_ERROR_SYNTAX; + } + } + + /* Are we dealing with IPvFuture input? */ + /* Assemble "//[..]" input wrap for upcoming parse as a URI + * NOTE: If the input contains closing "]" on its own, the resulting + * string will not be valid URI syntax, and hence there is + * no risk of false positives from "bracket injection". */ + const size_t inputLenChars = (afterLast - first); + const size_t MAX_SIZE_T = (size_t)-1; + + /* Detect overflow */ + if (MAX_SIZE_T - inputLenChars < 3 + 1 + 1) { + return URI_ERROR_MALLOC; + } + + const size_t candidateLenChars = 3 + inputLenChars + 1; + + /* Detect overflow */ + if (MAX_SIZE_T / sizeof(URI_CHAR) < candidateLenChars + 1) { + return URI_ERROR_MALLOC; + } + + URI_CHAR * const candidate = + memory->malloc(memory, (candidateLenChars + 1) * sizeof(URI_CHAR)); + + if (candidate == NULL) { + return URI_ERROR_MALLOC; + } + + memcpy(candidate, _UT("//["), 3 * sizeof(URI_CHAR)); + memcpy(candidate + 3, first, inputLenChars * sizeof(URI_CHAR)); + memcpy(candidate + 3 + inputLenChars, _UT("]"), + 2 * sizeof(URI_CHAR)); /* includes zero terminator */ + + /* Parse as an RFC 3986 URI */ + URI_TYPE(Uri) uri; + const int res = URI_FUNC(ParseSingleUriExMm)( + &uri, candidate, candidate + candidateLenChars, NULL, memory); + + assert((res == URI_SUCCESS) || (res == URI_ERROR_SYNTAX) + || (res == URI_ERROR_MALLOC)); + + if (res == URI_SUCCESS) { + assert(uri.hostData.ipFuture.first != NULL); + URI_FUNC(FreeUriMembersMm)(&uri, memory); + } + + memory->free(memory, candidate); + + return res; +} + +int URI_FUNC(IsWellFormedHostIpFuture)(const URI_CHAR * first, + const URI_CHAR * afterLast) { + return URI_FUNC(IsWellFormedHostIpFutureMm)(first, afterLast, NULL); +} + +int URI_FUNC(SetHostIpFutureMm)(URI_TYPE(Uri) * uri, const URI_CHAR * first, + const URI_CHAR * afterLast, UriMemoryManager * memory) { + return URI_FUNC(InternalSetHostMm)(uri, URI_HOST_TYPE_IPFUTURE, first, afterLast, + memory); +} + +int URI_FUNC(SetHostIpFuture)(URI_TYPE(Uri) * uri, const URI_CHAR * first, + const URI_CHAR * afterLast) { + return URI_FUNC(SetHostIpFutureMm)(uri, first, afterLast, NULL); +} + +#endif |