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php-src/ext/mysqlnd/mysqlnd_charset.c
Andrey Hristov 69f4a40d99 Merge with internal version
2008-01-23 19:09:33 +00:00

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/*
+----------------------------------------------------------------------+
| PHP Version 6 |
+----------------------------------------------------------------------+
| Copyright (c) 2006-2008 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Georg Richter <georg@mysql.com> |
| Andrey Hristov <andrey@mysql.com> |
| Ulf Wendel <uwendel@mysql.com> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "php_globals.h"
#include "mysqlnd.h"
#include "mysqlnd_priv.h"
#include "mysqlnd_debug.h"
/* {{{ utf8 functions */
static uint check_mb_utf8_sequence(const char *start, const char *end)
{
zend_uchar c;
if (start >= end) {
return 0;
}
c = (zend_uchar) start[0];
if (c < 0x80) {
return 1; /* single byte character */
}
if (c < 0xC2) {
return 0; /* invalid mb character */
}
if (c < 0xE0) {
if (start + 2 > end) {
return 0; /* too small */
}
if (!(((zend_uchar)start[1] ^ 0x80) < 0x40)) {
return 0;
}
return 2;
}
if (c < 0xF0) {
if (start + 3 > end) {
return 0; /* too small */
}
if (!(((zend_uchar)start[1] ^ 0x80) < 0x40 && ((zend_uchar)start[2] ^ 0x80) < 0x40 &&
(c >= 0xE1 || (zend_uchar)start[1] >= 0xA0))) {
return 0; /* invalid utf8 character */
}
return 3;
}
return 0;
}
static uint check_mb_utf8_valid(const char *start, const char *end)
{
uint len = check_mb_utf8_sequence(start, end);
return (len > 1)? len:0;
}
static uint mysqlnd_mbcharlen_utf8(uint utf8)
{
if (utf8 < 0x80) {
return 1; /* single byte character */
}
if (utf8 < 0xC2) {
return 0; /* invalid multibyte header */
}
if (utf8 < 0xE0) {
return 2; /* double byte character */
}
if (utf8 < 0xF0) {
return 3; /* triple byte character */
}
/* We still don't support characters out of the BMP */
return 0;
}
/* }}} */
/* {{{ big5 functions */
#define valid_big5head(c) (0xA1 <= (uint)(c) && (uint)(c) <= 0xF9)
#define valid_big5tail(c) ((0x40 <= (uint)(c) && (uint)(c) <= 0x7E) || \
(0xA1 <= (uint)(c) && (uint)(c) <= 0xFE))
#define isbig5code(c,d) (isbig5head(c) && isbig5tail(d))
static uint check_mb_big5(const char *start, const char *end)
{
return (valid_big5head(*(start)) && (end - start) > 1 && valid_big5tail(*(start + 1)) ? 2 : 0);
}
static uint mysqlnd_mbcharlen_big5(uint big5)
{
return (valid_big5head(big5)) ? 2 : 1;
}
/* }}} */
/* {{{ cp932 functions */
#define valid_cp932head(c) ((0x81 <= (c) && (c) <= 0x9F) || (0xE0 <= (c) && c <= 0xFC))
#define valid_cp932tail(c) ((0x40 <= (c) && (c) <= 0x7E) || (0x80 <= (c) && c <= 0xFC))
static uint check_mb_cp932(const char *start, const char *end)
{
return (valid_cp932head((zend_uchar)start[0]) && (end - start > 1) &&
valid_cp932tail((zend_uchar)start[1])) ? 2 : 0;
}
static uint mysqlnd_mbcharlen_cp932(uint cp932)
{
return (valid_cp932head((zend_uchar)cp932)) ? 2 : 1;
}
/* }}} */
/* {{{ euckr functions */
#define valid_euckr(c) ((0xA1 <= (zend_uchar)(c) && (zend_uchar)(c) <= 0xFE))
static uint check_mb_euckr(const char *start, const char *end)
{
if (end - start <= 1) {
return 0; /* invalid length */
}
if (*(zend_uchar *)start < 0x80) {
return 0; /* invalid euckr character */
}
if (valid_euckr(start[1])) {
return 2;
}
return 0;
}
static uint mysqlnd_mbcharlen_euckr(uint kr)
{
return (valid_euckr(kr)) ? 2 : 1;
}
/* }}} */
/* {{{ eucjpms functions */
#define valid_eucjpms(c) (((c) & 0xFF) >= 0xA1 && ((c) & 0xFF) <= 0xFE)
#define valid_eucjpms_kata(c) (((c) & 0xFF) >= 0xA1 && ((c) & 0xFF) <= 0xDF)
#define valid_eucjpms_ss2(c) (((c) & 0xFF) == 0x8E)
#define valid_eucjpms_ss3(c) (((c) & 0xFF) == 0x8F)
static uint check_mb_eucjpms(const char *start, const char *end)
{
if (*((zend_uchar *)start) < 0x80) {
return 0; /* invalid eucjpms character */
}
if (valid_eucjpms(start[0]) && (end - start) > 1 && valid_eucjpms(start[1])) {
return 2;
}
if (valid_eucjpms_ss2(start[0]) && (end - start) > 1 && valid_eucjpms_kata(start[1])) {
return 2;
}
if (valid_eucjpms_ss3(start[0]) && (end - start) > 2 && valid_eucjpms(start[1]) &&
valid_eucjpms(start[2])) {
return 2;
}
return 0;
}
static uint mysqlnd_mbcharlen_eucjpms(uint jpms)
{
if (valid_eucjpms(jpms) || valid_eucjpms_ss2(jpms)) {
return 2;
}
if (valid_eucjpms_ss3(jpms)) {
return 3;
}
return 1;
}
/* }}} */
/* {{{ gb2312 functions */
#define valid_gb2312_head(c) (0xA1 <= (zend_uchar)(c) && (zend_uchar)(c) <= 0xF7)
#define valid_gb2312_tail(c) (0xA1 <= (zend_uchar)(c) && (zend_uchar)(c) <= 0xFE)
static uint check_mb_gb2312(const char *start, const char *end)
{
return (valid_gb2312_head((uint)start[0]) && end - start > 1 &&
valid_gb2312_tail((uint)start[1])) ? 2 : 0;
}
static uint mysqlnd_mbcharlen_gb2312(uint gb)
{
return (valid_gb2312_head(gb)) ? 2 : 1;
}
/* }}} */
/* {{{ gbk functions */
#define valid_gbk_head(c) (0x81<=(zend_uchar)(c) && (zend_uchar)(c)<=0xFE)
#define valid_gbk_tail(c) ((0x40<=(zend_uchar)(c) && (zend_uchar)(c)<=0x7E) || (0x80<=(zend_uchar)(c) && (zend_uchar)(c)<=0xFE))
static uint check_mb_gbk(const char *start, const char *end)
{
return (valid_gbk_head(start[0]) && (end) - (start) > 1 && valid_gbk_tail(start[1])) ? 2 : 0;
}
static uint mysqlnd_mbcharlen_gbk(uint gbk)
{
return (valid_gbk_head(gbk) ? 2 : 1);
}
/* }}} */
/* {{{ sjis functions */
#define valid_sjis_head(c) ((0x81 <= (c) && (c) <= 0x9F) && \
(0xE0 <= (c) && (c) <= 0xFC))
#define valid_sjis_tail(c) ((0x40 <= (c) && (c) <= 0x7E) && \
(0x80 <= (c) && (c) <= 0x7C))
static uint check_mb_sjis(const char *start, const char *end)
{
return (valid_sjis_head((zend_uchar)start[0]) && (end - start) > 1 && valid_sjis_tail((zend_uchar)start[1])) ? 2 : 0;
}
static uint mysqlnd_mbcharlen_sjis(uint sjis)
{
return (valid_sjis_head((zend_uchar)sjis)) ? 2 : 1;
}
/* }}} */
/* {{{ ucs2 functions */
static uint check_mb_ucs2(const char *start __attribute((unused)), const char *end __attribute((unused)))
{
return 2; /* always 2 */
}
static uint mysqlnd_mbcharlen_ucs2(uint ucs2 __attribute((unused)))
{
return 2; /* always 2 */
}
/* }}} */
/* {{{ ujis functions */
#define valid_ujis(c) ((0xA1 <= ((c)&0xFF) && ((c)&0xFF) <= 0xFE))
#define valid_ujis_kata(c) ((0xA1 <= ((c)&0xFF) && ((c)&0xFF) <= 0xDF))
#define valid_ujis_ss2(c) (((c)&0xFF) == 0x8E)
#define valid_ujis_ss3(c) (((c)&0xFF) == 0x8F)
static uint check_mb_ujis(const char *start, const char *end)
{
if (*(uchar*)start < 0x80) {
return 0; /* invalid ujis character */
}
if (valid_ujis(*(start)) && valid_ujis(*((start)+1))) {
return 2;
}
if (valid_ujis_ss2(*(start)) && valid_ujis_kata(*((start)+1))) {
return 2;
}
if (valid_ujis_ss3(*(start)) && (end-start) > 2 && valid_ujis(*((start)+1)) && valid_ujis(*((start)+2))) {
return 3;
}
return 0;
}
static uint mysqlnd_mbcharlen_ujis(uint ujis)
{
return (valid_ujis(ujis)? 2: valid_ujis_ss2(ujis)? 2: valid_ujis_ss3(ujis)? 3: 1);
}
/* }}} */
/* {{{ mysqlnd_charsets */
const MYSQLND_CHARSET mysqlnd_charsets[] =
{
{ 1, "big5","big5_chinese_ci", 1, 2, mysqlnd_mbcharlen_big5, check_mb_big5},
{ 3, "dec8", "dec8_swedisch_ci", 1, 1, NULL, NULL},
{ 4, "cp850", "cp850_general_ci", 1, 1, NULL, NULL},
{ 6, "hp8", "hp8_english_ci", 1, 1, NULL, NULL},
{ 7, "koi8r", "koi8r_general_ci", 1, 1, NULL, NULL},
{ 8, "latin1", "latin1_swedish_ci", 1, 1, NULL, NULL},
{ 9, "latin2", "latin2_general_ci", 1, 1, NULL, NULL},
{ 10, "swe7", "swe7_swedish_ci", 1, 1, NULL, NULL},
{ 11, "ascii", "ascii_general_ci", 1, 1, NULL, NULL},
{ 12, "ujis", "ujis_japanese_ci", 1, 3, mysqlnd_mbcharlen_ujis, check_mb_ujis},
{ 13, "sjis", "sjis_japanese_ci", 1, 2, mysqlnd_mbcharlen_sjis, check_mb_sjis},
{ 16, "hebrew", "hebrew_general_ci", 1, 1, NULL, NULL},
{ 18, "tis620", "tis620_thai_ci", 1, 1, NULL, NULL},
{ 19, "euckr", "euckr_korean_ci", 1, 2, mysqlnd_mbcharlen_euckr, check_mb_euckr},
{ 22, "koi8u", "koi8u_general_ci", 1, 1, NULL, NULL},
{ 24, "gb2312", "gb2312_chinese_ci", 1, 2, mysqlnd_mbcharlen_gb2312, check_mb_gb2312},
{ 25, "greek", "greek_general_ci", 1, 1, NULL, NULL},
{ 26, "cp1250", "cp1250_general_ci", 1, 1, NULL, NULL},
{ 28, "gbk", "gbk_chinese_ci", 1, 2, mysqlnd_mbcharlen_gbk, check_mb_gbk},
{ 30, "latin5", "latin5_turkish_ci", 1, 1, NULL, NULL},
{ 32, "armscii8", "armscii8_general_ci", 1, 1, NULL, NULL},
{ 33, "utf8", "utf8_general_ci", 1, 2, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 35, "ucs2", "ucs2_general_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 36, "cp866", "cp866_general_ci", 1, 1, NULL, NULL},
{ 37, "keybcs2", "keybcs2_general_ci", 1, 1, NULL, NULL},
{ 38, "macce", "macce_general_ci", 1, 1, NULL, NULL},
{ 39, "macroman", "macroman_general_ci", 1, 1, NULL, NULL},
{ 40, "cp852", "cp852_general_ci", 1, 1, NULL, NULL},
{ 41, "latin7", "latin7_general_ci", 1, 1, NULL, NULL},
{ 51, "cp1251", "cp1251_general_ci", 1, 1, NULL, NULL},
{ 57, "cp1256", "cp1256_general_ci", 1, 1, NULL, NULL},
{ 59, "cp1257", "cp1257_general_ci", 1, 1, NULL, NULL},
{ 63, "binary", "binary", 1, 1, NULL, NULL},
{ 92, "geostd8", "geostd8_general_ci", 1, 1, NULL, NULL},
{ 95, "cp932", "cp932_japanese_ci", 1, 2, mysqlnd_mbcharlen_cp932, check_mb_cp932},
{ 97, "eucjpms", "eucjpms_japanese_ci", 1, 3, mysqlnd_mbcharlen_eucjpms, check_mb_eucjpms},
{ 2, "latin2", "latin2_czech_cs", 1, 1, NULL, NULL},
{ 5, "latin1", "latin1_german_ci", 1, 1, NULL, NULL},
{ 14, "cp1251", "cp1251_bulgarian_ci", 1, 1, NULL, NULL},
{ 15, "latin1", "latin1_danish_ci", 1, 1, NULL, NULL},
{ 17, "filename", "filename", 1, 5, NULL, NULL},
{ 20, "latin7", "latin7_estonian_cs", 1, 1, NULL, NULL},
{ 21, "latin2", "latin2_hungarian_ci", 1, 1, NULL, NULL},
{ 23, "cp1251", "cp1251_ukrainian_ci", 1, 1, NULL, NULL},
{ 27, "latin2", "latin2_croatian_ci", 1, 1, NULL, NULL},
{ 29, "cp1257", "cp1257_lithunian_ci", 1, 1, NULL, NULL},
{ 31, "latin1", "latin1_german2_ci", 1, 1, NULL, NULL},
{ 34, "cp1250", "cp1250_czech_cs", 1, 1, NULL, NULL},
{ 42, "latin7", "latin7_general_cs", 1, 1, NULL, NULL},
{ 43, "macce", "macce_bin", 1, 1, NULL, NULL},
{ 44, "cp1250", "cp1250_croatian_ci", 1, 1, NULL, NULL},
{ 47, "latin1", "latin1_bin", 1, 1, NULL, NULL},
{ 48, "latin1", "latin1_general_ci", 1, 1, NULL, NULL},
{ 49, "latin1", "latin1_general_cs", 1, 1, NULL, NULL},
{ 50, "cp1251", "cp1251_bin", 1, 1, NULL, NULL},
{ 52, "cp1251", "cp1251_general_cs", 1, 1, NULL, NULL},
{ 53, "macroman", "macroman_bin", 1, 1, NULL, NULL},
{ 58, "cp1257", "cp1257_bin", 1, 1, NULL, NULL},
{ 60, "armascii8", "armascii8_bin", 1, 1, NULL, NULL},
{ 65, "ascii", "ascii_bin", 1, 1, NULL, NULL},
{ 66, "cp1250", "cp1250_bin", 1, 1, NULL, NULL},
{ 67, "cp1256", "cp1256_bin", 1, 1, NULL, NULL},
{ 68, "cp866", "cp866_bin", 1, 1, NULL, NULL},
{ 69, "dec8", "dec8_bin", 1, 1, NULL, NULL},
{ 70, "greek", "greek_bin", 1, 1, NULL, NULL},
{ 71, "hebew", "hebrew_bin", 1, 1, NULL, NULL},
{ 72, "hp8", "hp8_bin", 1, 1, NULL, NULL},
{ 73, "keybcs2", "keybcs2_bin", 1, 1, NULL, NULL},
{ 74, "koi8r", "koi8r_bin", 1, 1, NULL, NULL},
{ 75, "koi8u", "koi8u_bin", 1, 1, NULL, NULL},
{ 77, "latin2", "latin2_bin", 1, 1, NULL, NULL},
{ 78, "latin5", "latin5_bin", 1, 1, NULL, NULL},
{ 79, "latin7", "latin7_bin", 1, 1, NULL, NULL},
{ 80, "cp850", "cp850_bin", 1, 1, NULL, NULL},
{ 81, "cp852", "cp852_bin", 1, 1, NULL, NULL},
{ 82, "swe7", "swe7_bin", 1, 1, NULL, NULL},
{ 93, "geostd8", "geostd8_bin", 1, 1, NULL, NULL},
{ 83, "utf8", "utf8_bin", 1, 2, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 84, "big5", "big5_bin", 1, 2, mysqlnd_mbcharlen_big5, check_mb_big5},
{ 85, "euckr", "euckr_bin", 1, 2, mysqlnd_mbcharlen_euckr, check_mb_euckr},
{ 86, "gb2312", "gb2312_bin", 1, 2, mysqlnd_mbcharlen_gb2312, check_mb_gb2312},
{ 87, "gbk", "gbk_bin", 1, 2, mysqlnd_mbcharlen_gbk, check_mb_gbk},
{ 88, "sjis", "sjis_bin", 1, 2, mysqlnd_mbcharlen_sjis, check_mb_sjis},
{ 89, "tis620", "tis620_bin", 1, 1, NULL, NULL},
{ 90, "ucs2", "ucs2_bin", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 91, "ujis", "ujis_bin", 1, 3, mysqlnd_mbcharlen_ujis, check_mb_ujis},
{ 94, "latin1", "latin1_spanish_ci", 1, 1, NULL, NULL},
{ 96, "cp932", "cp932_bin", 1, 2, mysqlnd_mbcharlen_cp932, check_mb_cp932},
{ 99, "cp1250", "cp1250_polish_ci", 1, 1, NULL, NULL},
{ 98, "eucjpms", "eucjpms_bin", 1, 3, mysqlnd_mbcharlen_eucjpms, check_mb_eucjpms},
{ 128, "ucs2", "ucs2_unicode_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 129, "ucs2", "ucs2_icelandic_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 130, "ucs2", "ucs2_latvian_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 131, "ucs2", "ucs2_romanian_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 132, "ucs2", "ucs2_slovenian_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 133, "ucs2", "ucs2_polish_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 134, "ucs2", "ucs2_estonian_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 135, "ucs2", "ucs2_spanish_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 136, "ucs2", "ucs2_swedish_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 137, "ucs2", "ucs2_turkish_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 138, "ucs2", "ucs2_czech_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 139, "ucs2", "ucs2_danish_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 140, "ucs2", "ucs2_lithunian_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 141, "ucs2", "ucs2_slovak_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 142, "ucs2", "ucs2_spanish2_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 143, "ucs2", "ucs2_roman_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 144, "ucs2", "ucs2_persian_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 145, "ucs2", "ucs2_esperanto_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 146, "ucs2", "ucs2_hungarian_ci", 2, 2, mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
{ 192, "utf8", "utf8_general_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 193, "utf8", "utf8_icelandic_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 194, "utf8", "utf8_latvian_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 195, "utf8", "utf8_romanian_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 196, "utf8", "utf8_slovenian_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 197, "utf8", "utf8_polish_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 198, "utf8", "utf8_estonian_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 119, "utf8", "utf8_spanish_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 200, "utf8", "utf8_swedish_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 201, "utf8", "utf8_turkish_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 202, "utf8", "utf8_czech_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 203, "utf8", "utf8_danish_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid },
{ 204, "utf8", "utf8_lithunian_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid },
{ 205, "utf8", "utf8_slovak_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 206, "utf8", "utf8_spanish2_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 207, "utf8", "utf8_roman_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 208, "utf8", "utf8_persian_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 209, "utf8", "utf8_esperanto_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 210, "utf8", "utf8_hungarian_ci", 1, 3, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
{ 254, "utf8", "utf8_general_cs", 1, 2, mysqlnd_mbcharlen_utf8, check_mb_utf8_valid },
{ 0, NULL, NULL, 0, 0, NULL, NULL}
};
/* }}} */
/* {{{ mysqlnd_find_charset_nr */
PHPAPI const MYSQLND_CHARSET * mysqlnd_find_charset_nr(uint charsetnr)
{
const MYSQLND_CHARSET * c = mysqlnd_charsets;
do {
if (c->nr == charsetnr) {
return c;
}
++c;
} while (c[0].nr != 0);
return NULL;
}
/* }}} */
/* {{{ mysqlnd_find_charset_name */
PHPAPI const MYSQLND_CHARSET * mysqlnd_find_charset_name(const char * const name)
{
const MYSQLND_CHARSET *c = mysqlnd_charsets;
do {
if (!strcasecmp(c->name, name)) {
return c;
}
++c;
} while (c[0].nr != 0);
return NULL;
}
/* }}} */
/* {{{ mysqlnd_cset_escape_quotes */
PHPAPI ulong mysqlnd_cset_escape_quotes(const MYSQLND_CHARSET * const cset, char *newstr,
const char *escapestr, size_t escapestr_len TSRMLS_DC)
{
const char *newstr_s = newstr;
const char *newstr_e = newstr + 2 * escapestr_len;
const char *end = escapestr + escapestr_len;
zend_bool escape_overflow = FALSE;
DBG_ENTER("mysqlnd_cset_escape_quotes");
for (;escapestr < end; escapestr++) {
uint len = 0;
/* check unicode characters */
if (cset->char_maxlen > 1 && (len = cset->mb_valid(escapestr, end))) {
/* check possible overflow */
if ((newstr + len) > newstr_e) {
escape_overflow = TRUE;
break;
}
/* copy mb char without escaping it */
while (len--) {
*newstr++ = *escapestr++;
}
escapestr--;
continue;
}
if (*escapestr == '\'') {
if (newstr + 2 > newstr_e) {
escape_overflow = TRUE;
break;
}
*newstr++ = '\'';
*newstr++ = '\'';
} else {
if (newstr + 1 > newstr_e) {
escape_overflow = TRUE;
break;
}
*newstr++ = *escapestr;
}
}
*newstr = '\0';
if (escape_overflow) {
DBG_RETURN((ulong)~0);
}
DBG_RETURN((ulong)(newstr - newstr_s));
}
/* }}} */
/* {{{ mysqlnd_cset_escape_slashes */
PHPAPI ulong mysqlnd_cset_escape_slashes(const MYSQLND_CHARSET * const cset, char *newstr,
const char *escapestr, size_t escapestr_len TSRMLS_DC)
{
const char *newstr_s = newstr;
const char *newstr_e = newstr + 2 * escapestr_len;
const char *end = escapestr + escapestr_len;
zend_bool escape_overflow = FALSE;
DBG_ENTER("mysqlnd_cset_escape_slashes");
for (;escapestr < end; escapestr++) {
char esc = '\0';
uint len = 0;
/* check unicode characters */
if (cset->char_maxlen > 1 && (len = cset->mb_valid(escapestr, end))) {
/* check possible overflow */
if ((newstr + len) > newstr_e) {
escape_overflow = TRUE;
break;
}
/* copy mb char without escaping it */
while (len--) {
*newstr++ = *escapestr++;
}
escapestr--;
continue;
}
if (cset->char_maxlen > 1 && cset->mb_charlen(*escapestr) > 1) {
esc = *escapestr;
} else {
switch (*escapestr) {
case 0:
esc = '0';
break;
case '\n':
esc = 'n';
break;
case '\r':
esc = 'r';
break;
case '\\':
case '\'':
case '"':
esc = *escapestr;
break;
case '\032':
esc = 'Z';
break;
}
}
if (esc) {
if (newstr + 2 > newstr_e) {
escape_overflow = TRUE;
break;
}
/* copy escaped character */
*newstr++ = '\\';
*newstr++ = esc;
} else {
if (newstr + 1 > newstr_e) {
escape_overflow = TRUE;
break;
}
/* copy non escaped character */
*newstr++ = *escapestr;
}
}
*newstr = '\0';
if (escape_overflow) {
DBG_RETURN((ulong)~0);
}
DBG_RETURN((ulong)(newstr - newstr_s));
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
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