diff options
Diffstat (limited to 'plugins/Pcre16/src/pcre_byte_order.c')
-rw-r--r-- | plugins/Pcre16/src/pcre_byte_order.c | 319 |
1 files changed, 0 insertions, 319 deletions
diff --git a/plugins/Pcre16/src/pcre_byte_order.c b/plugins/Pcre16/src/pcre_byte_order.c deleted file mode 100644 index cf5f12b04e..0000000000 --- a/plugins/Pcre16/src/pcre_byte_order.c +++ /dev/null @@ -1,319 +0,0 @@ -/************************************************* -* Perl-Compatible Regular Expressions * -*************************************************/ - -/* PCRE is a library of functions to support regular expressions whose syntax -and semantics are as close as possible to those of the Perl 5 language. - - Written by Philip Hazel - Copyright (c) 1997-2014 University of Cambridge - ------------------------------------------------------------------------------ -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - - * 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. - - * Neither the name of the University of Cambridge 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 OWNER 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. ------------------------------------------------------------------------------ -*/ - - -/* This module contains an internal function that tests a compiled pattern to -see if it was compiled with the opposite endianness. If so, it uses an -auxiliary local function to flip the appropriate bytes. */ - - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "pcre_internal.h" - - -/************************************************* -* Swap byte functions * -*************************************************/ - -/* The following functions swap the bytes of a pcre_uint16 -and pcre_uint32 value. - -Arguments: - value any number - -Returns: the byte swapped value -*/ - -static pcre_uint32 -swap_uint32(pcre_uint32 value) -{ -return ((value & 0x000000ff) << 24) | - ((value & 0x0000ff00) << 8) | - ((value & 0x00ff0000) >> 8) | - (value >> 24); -} - -static pcre_uint16 -swap_uint16(pcre_uint16 value) -{ -return (value >> 8) | (value << 8); -} - - -/************************************************* -* Test for a byte-flipped compiled regex * -*************************************************/ - -/* This function swaps the bytes of a compiled pattern usually -loaded form the disk. It also sets the tables pointer, which -is likely an invalid pointer after reload. - -Arguments: - argument_re points to the compiled expression - extra_data points to extra data or is NULL - tables points to the character tables or NULL - -Returns: 0 if the swap is successful, negative on error -*/ - -#if defined COMPILE_PCRE8 -PCRE_EXP_DECL int pcre_pattern_to_host_byte_order(pcre *argument_re, - pcre_extra *extra_data, const unsigned char *tables) -#elif defined COMPILE_PCRE16 -PCRE_EXP_DECL int pcre16_pattern_to_host_byte_order(pcre16 *argument_re, - pcre16_extra *extra_data, const unsigned char *tables) -#elif defined COMPILE_PCRE32 -PCRE_EXP_DECL int pcre32_pattern_to_host_byte_order(pcre32 *argument_re, - pcre32_extra *extra_data, const unsigned char *tables) -#endif -{ -REAL_PCRE *re = (REAL_PCRE *)argument_re; -pcre_study_data *study; -#ifndef COMPILE_PCRE8 -pcre_uchar *ptr; -int length; -#if defined SUPPORT_UTF && defined COMPILE_PCRE16 -BOOL utf; -BOOL utf16_char; -#endif /* SUPPORT_UTF && COMPILE_PCRE16 */ -#endif /* !COMPILE_PCRE8 */ - -if (re == NULL) return PCRE_ERROR_NULL; -if (re->magic_number == MAGIC_NUMBER) - { - if ((re->flags & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE; - re->tables = tables; - return 0; - } - -if (re->magic_number != REVERSED_MAGIC_NUMBER) return PCRE_ERROR_BADMAGIC; -if ((swap_uint32(re->flags) & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE; - -re->magic_number = MAGIC_NUMBER; -re->size = swap_uint32(re->size); -re->options = swap_uint32(re->options); -re->flags = swap_uint32(re->flags); -re->limit_match = swap_uint32(re->limit_match); -re->limit_recursion = swap_uint32(re->limit_recursion); - -#if defined COMPILE_PCRE8 || defined COMPILE_PCRE16 -re->first_char = swap_uint16(re->first_char); -re->req_char = swap_uint16(re->req_char); -#elif defined COMPILE_PCRE32 -re->first_char = swap_uint32(re->first_char); -re->req_char = swap_uint32(re->req_char); -#endif - -re->max_lookbehind = swap_uint16(re->max_lookbehind); -re->top_bracket = swap_uint16(re->top_bracket); -re->top_backref = swap_uint16(re->top_backref); -re->name_table_offset = swap_uint16(re->name_table_offset); -re->name_entry_size = swap_uint16(re->name_entry_size); -re->name_count = swap_uint16(re->name_count); -re->ref_count = swap_uint16(re->ref_count); -re->tables = tables; - -if (extra_data != NULL && (extra_data->flags & PCRE_EXTRA_STUDY_DATA) != 0) - { - study = (pcre_study_data *)extra_data->study_data; - study->size = swap_uint32(study->size); - study->flags = swap_uint32(study->flags); - study->minlength = swap_uint32(study->minlength); - } - -#ifndef COMPILE_PCRE8 -ptr = (pcre_uchar *)re + re->name_table_offset; -length = re->name_count * re->name_entry_size; -#if defined SUPPORT_UTF && defined COMPILE_PCRE16 -utf = (re->options & PCRE_UTF16) != 0; -utf16_char = FALSE; -#endif /* SUPPORT_UTF && COMPILE_PCRE16 */ - -while(TRUE) - { - /* Swap previous characters. */ - while (length-- > 0) - { -#if defined COMPILE_PCRE16 - *ptr = swap_uint16(*ptr); -#elif defined COMPILE_PCRE32 - *ptr = swap_uint32(*ptr); -#endif - ptr++; - } -#if defined SUPPORT_UTF && defined COMPILE_PCRE16 - if (utf16_char) - { - if (HAS_EXTRALEN(ptr[-1])) - { - /* We know that there is only one extra character in UTF-16. */ - *ptr = swap_uint16(*ptr); - ptr++; - } - } - utf16_char = FALSE; -#endif /* SUPPORT_UTF */ - - /* Get next opcode. */ - length = 0; -#if defined COMPILE_PCRE16 - *ptr = swap_uint16(*ptr); -#elif defined COMPILE_PCRE32 - *ptr = swap_uint32(*ptr); -#endif - switch (*ptr) - { - case OP_END: - return 0; - -#if defined SUPPORT_UTF && defined COMPILE_PCRE16 - case OP_CHAR: - case OP_CHARI: - case OP_NOT: - case OP_NOTI: - case OP_STAR: - case OP_MINSTAR: - case OP_PLUS: - case OP_MINPLUS: - case OP_QUERY: - case OP_MINQUERY: - case OP_UPTO: - case OP_MINUPTO: - case OP_EXACT: - case OP_POSSTAR: - case OP_POSPLUS: - case OP_POSQUERY: - case OP_POSUPTO: - case OP_STARI: - case OP_MINSTARI: - case OP_PLUSI: - case OP_MINPLUSI: - case OP_QUERYI: - case OP_MINQUERYI: - case OP_UPTOI: - case OP_MINUPTOI: - case OP_EXACTI: - case OP_POSSTARI: - case OP_POSPLUSI: - case OP_POSQUERYI: - case OP_POSUPTOI: - case OP_NOTSTAR: - case OP_NOTMINSTAR: - case OP_NOTPLUS: - case OP_NOTMINPLUS: - case OP_NOTQUERY: - case OP_NOTMINQUERY: - case OP_NOTUPTO: - case OP_NOTMINUPTO: - case OP_NOTEXACT: - case OP_NOTPOSSTAR: - case OP_NOTPOSPLUS: - case OP_NOTPOSQUERY: - case OP_NOTPOSUPTO: - case OP_NOTSTARI: - case OP_NOTMINSTARI: - case OP_NOTPLUSI: - case OP_NOTMINPLUSI: - case OP_NOTQUERYI: - case OP_NOTMINQUERYI: - case OP_NOTUPTOI: - case OP_NOTMINUPTOI: - case OP_NOTEXACTI: - case OP_NOTPOSSTARI: - case OP_NOTPOSPLUSI: - case OP_NOTPOSQUERYI: - case OP_NOTPOSUPTOI: - if (utf) utf16_char = TRUE; -#endif - /* Fall through. */ - - default: - length = PRIV(OP_lengths)[*ptr] - 1; - break; - - case OP_CLASS: - case OP_NCLASS: - /* Skip the character bit map. */ - ptr += 32/sizeof(pcre_uchar); - length = 0; - break; - - case OP_XCLASS: - /* Reverse the size of the XCLASS instance. */ - ptr++; -#if defined COMPILE_PCRE16 - *ptr = swap_uint16(*ptr); -#elif defined COMPILE_PCRE32 - *ptr = swap_uint32(*ptr); -#endif -#ifndef COMPILE_PCRE32 - if (LINK_SIZE > 1) - { - /* LINK_SIZE can be 1 or 2 in 16 bit mode. */ - ptr++; - *ptr = swap_uint16(*ptr); - } -#endif - ptr++; - length = (GET(ptr, -LINK_SIZE)) - (1 + LINK_SIZE + 1); -#if defined COMPILE_PCRE16 - *ptr = swap_uint16(*ptr); -#elif defined COMPILE_PCRE32 - *ptr = swap_uint32(*ptr); -#endif - if ((*ptr & XCL_MAP) != 0) - { - /* Skip the character bit map. */ - ptr += 32/sizeof(pcre_uchar); - length -= 32/sizeof(pcre_uchar); - } - break; - } - ptr++; - } -/* Control should never reach here in 16/32 bit mode. */ -#else /* In 8-bit mode, the pattern does not need to be processed. */ -return 0; -#endif /* !COMPILE_PCRE8 */ -} - -/* End of pcre_byte_order.c */ |