1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 2006-2015 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Georg Richter <georg@mysql.com> |
16 | Andrey Hristov <andrey@mysql.com> |
17 | Ulf Wendel <uwendel@mysql.com> |
18 +----------------------------------------------------------------------+
19 */
20 #include "php.h"
21 #include "php_globals.h"
22 #include "mysqlnd.h"
23 #include "mysqlnd_priv.h"
24 #include "mysqlnd_debug.h"
25 #include "mysqlnd_charset.h"
26
27 /* {{{ utf8 functions */
check_mb_utf8mb3_sequence(const char * start,const char * end)28 static unsigned int check_mb_utf8mb3_sequence(const char *start, const char *end)
29 {
30 zend_uchar c;
31
32 if (start >= end) {
33 return 0;
34 }
35
36 c = (zend_uchar) start[0];
37
38 if (c < 0x80) {
39 return 1; /* single byte character */
40 }
41 if (c < 0xC2) {
42 return 0; /* invalid mb character */
43 }
44 if (c < 0xE0) {
45 if (start + 2 > end) {
46 return 0; /* too small */
47 }
48 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40)) {
49 return 0;
50 }
51 return 2;
52 }
53 if (c < 0xF0) {
54 if (start + 3 > end) {
55 return 0; /* too small */
56 }
57 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40 && ((zend_uchar)start[2] ^ 0x80) < 0x40 &&
58 (c >= 0xE1 || (zend_uchar)start[1] >= 0xA0))) {
59 return 0; /* invalid utf8 character */
60 }
61 return 3;
62 }
63 return 0;
64 }
65
66
check_mb_utf8_sequence(const char * start,const char * end)67 static unsigned int check_mb_utf8_sequence(const char *start, const char *end)
68 {
69 zend_uchar c;
70
71 if (start >= end) {
72 return 0;
73 }
74
75 c = (zend_uchar) start[0];
76
77 if (c < 0x80) {
78 return 1; /* single byte character */
79 }
80 if (c < 0xC2) {
81 return 0; /* invalid mb character */
82 }
83 if (c < 0xE0) {
84 if (start + 2 > end) {
85 return 0; /* too small */
86 }
87 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40)) {
88 return 0;
89 }
90 return 2;
91 }
92 if (c < 0xF0) {
93 if (start + 3 > end) {
94 return 0; /* too small */
95 }
96 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40 && ((zend_uchar)start[2] ^ 0x80) < 0x40 &&
97 (c >= 0xE1 || (zend_uchar)start[1] >= 0xA0))) {
98 return 0; /* invalid utf8 character */
99 }
100 return 3;
101 }
102 if (c < 0xF5) {
103 if (start + 4 > end) { /* We need 4 characters */
104 return 0; /* too small */
105 }
106
107 /*
108 UTF-8 quick four-byte mask:
109 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
110 Encoding allows to encode U+00010000..U+001FFFFF
111
112 The maximum character defined in the Unicode standard is U+0010FFFF.
113 Higher characters U+00110000..U+001FFFFF are not used.
114
115 11110000.10010000.10xxxxxx.10xxxxxx == F0.90.80.80 == U+00010000 (min)
116 11110100.10001111.10111111.10111111 == F4.8F.BF.BF == U+0010FFFF (max)
117
118 Valid codes:
119 [F0][90..BF][80..BF][80..BF]
120 [F1][80..BF][80..BF][80..BF]
121 [F2][80..BF][80..BF][80..BF]
122 [F3][80..BF][80..BF][80..BF]
123 [F4][80..8F][80..BF][80..BF]
124 */
125
126 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40 &&
127 ((zend_uchar)start[2] ^ 0x80) < 0x40 &&
128 ((zend_uchar)start[3] ^ 0x80) < 0x40 &&
129 (c >= 0xf1 || (zend_uchar)start[1] >= 0x90) &&
130 (c <= 0xf3 || (zend_uchar)start[1] <= 0x8F)))
131 {
132 return 0; /* invalid utf8 character */
133 }
134 return 4;
135 }
136 return 0;
137 }
138
check_mb_utf8mb3_valid(const char * start,const char * end)139 static unsigned int check_mb_utf8mb3_valid(const char *start, const char *end)
140 {
141 unsigned int len = check_mb_utf8mb3_sequence(start, end);
142 return (len > 1)? len:0;
143 }
144
check_mb_utf8_valid(const char * start,const char * end)145 static unsigned int check_mb_utf8_valid(const char *start, const char *end)
146 {
147 unsigned int len = check_mb_utf8_sequence(start, end);
148 return (len > 1)? len:0;
149 }
150
151
mysqlnd_mbcharlen_utf8mb3(unsigned int utf8)152 static unsigned int mysqlnd_mbcharlen_utf8mb3(unsigned int utf8)
153 {
154 if (utf8 < 0x80) {
155 return 1; /* single byte character */
156 }
157 if (utf8 < 0xC2) {
158 return 0; /* invalid multibyte header */
159 }
160 if (utf8 < 0xE0) {
161 return 2; /* double byte character */
162 }
163 if (utf8 < 0xF0) {
164 return 3; /* triple byte character */
165 }
166 return 0;
167 }
168
169
mysqlnd_mbcharlen_utf8(unsigned int utf8)170 static unsigned int mysqlnd_mbcharlen_utf8(unsigned int utf8)
171 {
172 if (utf8 < 0x80) {
173 return 1; /* single byte character */
174 }
175 if (utf8 < 0xC2) {
176 return 0; /* invalid multibyte header */
177 }
178 if (utf8 < 0xE0) {
179 return 2; /* double byte character */
180 }
181 if (utf8 < 0xF0) {
182 return 3; /* triple byte character */
183 }
184 if (utf8 < 0xF8) {
185 return 4; /* four byte character */
186 }
187 return 0;
188 }
189 /* }}} */
190
191
192 /* {{{ big5 functions */
193 #define valid_big5head(c) (0xA1 <= (unsigned int)(c) && (unsigned int)(c) <= 0xF9)
194 #define valid_big5tail(c) ((0x40 <= (unsigned int)(c) && (unsigned int)(c) <= 0x7E) || \
195 (0xA1 <= (unsigned int)(c) && (unsigned int)(c) <= 0xFE))
196
197 #define isbig5code(c,d) (isbig5head(c) && isbig5tail(d))
198
check_mb_big5(const char * start,const char * end)199 static unsigned int check_mb_big5(const char *start, const char *end)
200 {
201 return (valid_big5head(*(start)) && (end - start) > 1 && valid_big5tail(*(start + 1)) ? 2 : 0);
202 }
203
204
mysqlnd_mbcharlen_big5(unsigned int big5)205 static unsigned int mysqlnd_mbcharlen_big5(unsigned int big5)
206 {
207 return (valid_big5head(big5)) ? 2 : 1;
208 }
209 /* }}} */
210
211
212 /* {{{ cp932 functions */
213 #define valid_cp932head(c) ((0x81 <= (c) && (c) <= 0x9F) || (0xE0 <= (c) && c <= 0xFC))
214 #define valid_cp932tail(c) ((0x40 <= (c) && (c) <= 0x7E) || (0x80 <= (c) && c <= 0xFC))
215
216
check_mb_cp932(const char * start,const char * end)217 static unsigned int check_mb_cp932(const char *start, const char *end)
218 {
219 return (valid_cp932head((zend_uchar)start[0]) && (end - start > 1) &&
220 valid_cp932tail((zend_uchar)start[1])) ? 2 : 0;
221 }
222
223
mysqlnd_mbcharlen_cp932(unsigned int cp932)224 static unsigned int mysqlnd_mbcharlen_cp932(unsigned int cp932)
225 {
226 return (valid_cp932head((zend_uchar)cp932)) ? 2 : 1;
227 }
228 /* }}} */
229
230
231 /* {{{ euckr functions */
232 #define valid_euckr(c) ((0xA1 <= (zend_uchar)(c) && (zend_uchar)(c) <= 0xFE))
233
check_mb_euckr(const char * start,const char * end)234 static unsigned int check_mb_euckr(const char *start, const char *end)
235 {
236 if (end - start <= 1) {
237 return 0; /* invalid length */
238 }
239 if (*(zend_uchar *)start < 0x80) {
240 return 0; /* invalid euckr character */
241 }
242 if (valid_euckr(start[1])) {
243 return 2;
244 }
245 return 0;
246 }
247
248
mysqlnd_mbcharlen_euckr(unsigned int kr)249 static unsigned int mysqlnd_mbcharlen_euckr(unsigned int kr)
250 {
251 return (valid_euckr(kr)) ? 2 : 1;
252 }
253 /* }}} */
254
255
256 /* {{{ eucjpms functions */
257 #define valid_eucjpms(c) (((c) & 0xFF) >= 0xA1 && ((c) & 0xFF) <= 0xFE)
258 #define valid_eucjpms_kata(c) (((c) & 0xFF) >= 0xA1 && ((c) & 0xFF) <= 0xDF)
259 #define valid_eucjpms_ss2(c) (((c) & 0xFF) == 0x8E)
260 #define valid_eucjpms_ss3(c) (((c) & 0xFF) == 0x8F)
261
check_mb_eucjpms(const char * start,const char * end)262 static unsigned int check_mb_eucjpms(const char *start, const char *end)
263 {
264 if (*((zend_uchar *)start) < 0x80) {
265 return 0; /* invalid eucjpms character */
266 }
267 if (valid_eucjpms(start[0]) && (end - start) > 1 && valid_eucjpms(start[1])) {
268 return 2;
269 }
270 if (valid_eucjpms_ss2(start[0]) && (end - start) > 1 && valid_eucjpms_kata(start[1])) {
271 return 2;
272 }
273 if (valid_eucjpms_ss3(start[0]) && (end - start) > 2 && valid_eucjpms(start[1]) &&
274 valid_eucjpms(start[2])) {
275 return 2;
276 }
277 return 0;
278 }
279
280
mysqlnd_mbcharlen_eucjpms(unsigned int jpms)281 static unsigned int mysqlnd_mbcharlen_eucjpms(unsigned int jpms)
282 {
283 if (valid_eucjpms(jpms) || valid_eucjpms_ss2(jpms)) {
284 return 2;
285 }
286 if (valid_eucjpms_ss3(jpms)) {
287 return 3;
288 }
289 return 1;
290 }
291 /* }}} */
292
293
294 /* {{{ gb2312 functions */
295 #define valid_gb2312_head(c) (0xA1 <= (zend_uchar)(c) && (zend_uchar)(c) <= 0xF7)
296 #define valid_gb2312_tail(c) (0xA1 <= (zend_uchar)(c) && (zend_uchar)(c) <= 0xFE)
297
298
check_mb_gb2312(const char * start,const char * end)299 static unsigned int check_mb_gb2312(const char *start, const char *end)
300 {
301 return (valid_gb2312_head((unsigned int)start[0]) && end - start > 1 &&
302 valid_gb2312_tail((unsigned int)start[1])) ? 2 : 0;
303 }
304
305
mysqlnd_mbcharlen_gb2312(unsigned int gb)306 static unsigned int mysqlnd_mbcharlen_gb2312(unsigned int gb)
307 {
308 return (valid_gb2312_head(gb)) ? 2 : 1;
309 }
310 /* }}} */
311
312
313 /* {{{ gbk functions */
314 #define valid_gbk_head(c) (0x81<=(zend_uchar)(c) && (zend_uchar)(c)<=0xFE)
315 #define valid_gbk_tail(c) ((0x40<=(zend_uchar)(c) && (zend_uchar)(c)<=0x7E) || (0x80<=(zend_uchar)(c) && (zend_uchar)(c)<=0xFE))
316
check_mb_gbk(const char * start,const char * end)317 static unsigned int check_mb_gbk(const char *start, const char *end)
318 {
319 return (valid_gbk_head(start[0]) && (end) - (start) > 1 && valid_gbk_tail(start[1])) ? 2 : 0;
320 }
321
mysqlnd_mbcharlen_gbk(unsigned int gbk)322 static unsigned int mysqlnd_mbcharlen_gbk(unsigned int gbk)
323 {
324 return (valid_gbk_head(gbk) ? 2 : 1);
325 }
326 /* }}} */
327
328
329 /* {{{ sjis functions */
330 #define valid_sjis_head(c) ((0x81 <= (c) && (c) <= 0x9F) || (0xE0 <= (c) && (c) <= 0xFC))
331 #define valid_sjis_tail(c) ((0x40 <= (c) && (c) <= 0x7E) || (0x80 <= (c) && (c) <= 0xFC))
332
333
check_mb_sjis(const char * start,const char * end)334 static unsigned int check_mb_sjis(const char *start, const char *end)
335 {
336 return (valid_sjis_head((zend_uchar)start[0]) && (end - start) > 1 && valid_sjis_tail((zend_uchar)start[1])) ? 2 : 0;
337 }
338
339
mysqlnd_mbcharlen_sjis(unsigned int sjis)340 static unsigned int mysqlnd_mbcharlen_sjis(unsigned int sjis)
341 {
342 return (valid_sjis_head((zend_uchar)sjis)) ? 2 : 1;
343 }
344 /* }}} */
345
346
347 /* {{{ ucs2 functions */
check_mb_ucs2(const char * start __attribute ((unused)),const char * end __attribute ((unused)))348 static unsigned int check_mb_ucs2(const char *start __attribute((unused)), const char *end __attribute((unused)))
349 {
350 return 2; /* always 2 */
351 }
352
mysqlnd_mbcharlen_ucs2(unsigned int ucs2 __attribute ((unused)))353 static unsigned int mysqlnd_mbcharlen_ucs2(unsigned int ucs2 __attribute((unused)))
354 {
355 return 2; /* always 2 */
356 }
357 /* }}} */
358
359
360 /* {{{ ujis functions */
361 #define valid_ujis(c) ((0xA1 <= ((c)&0xFF) && ((c)&0xFF) <= 0xFE))
362 #define valid_ujis_kata(c) ((0xA1 <= ((c)&0xFF) && ((c)&0xFF) <= 0xDF))
363 #define valid_ujis_ss2(c) (((c)&0xFF) == 0x8E)
364 #define valid_ujis_ss3(c) (((c)&0xFF) == 0x8F)
365
check_mb_ujis(const char * start,const char * end)366 static unsigned int check_mb_ujis(const char *start, const char *end)
367 {
368 if (*(zend_uchar*)start < 0x80) {
369 return 0; /* invalid ujis character */
370 }
371 if (valid_ujis(*(start)) && valid_ujis(*((start)+1))) {
372 return 2;
373 }
374 if (valid_ujis_ss2(*(start)) && valid_ujis_kata(*((start)+1))) {
375 return 2;
376 }
377 if (valid_ujis_ss3(*(start)) && (end-start) > 2 && valid_ujis(*((start)+1)) && valid_ujis(*((start)+2))) {
378 return 3;
379 }
380 return 0;
381 }
382
383
mysqlnd_mbcharlen_ujis(unsigned int ujis)384 static unsigned int mysqlnd_mbcharlen_ujis(unsigned int ujis)
385 {
386 return (valid_ujis(ujis)? 2: valid_ujis_ss2(ujis)? 2: valid_ujis_ss3(ujis)? 3: 1);
387 }
388 /* }}} */
389
390
391
392 /* {{{ utf16 functions */
393 #define UTF16_HIGH_HEAD(x) ((((zend_uchar) (x)) & 0xFC) == 0xD8)
394 #define UTF16_LOW_HEAD(x) ((((zend_uchar) (x)) & 0xFC) == 0xDC)
395
check_mb_utf16(const char * start,const char * end)396 static unsigned int check_mb_utf16(const char *start, const char *end)
397 {
398 if (start + 2 > end) {
399 return 0;
400 }
401
402 if (UTF16_HIGH_HEAD(*start)) {
403 return (start + 4 <= end) && UTF16_LOW_HEAD(start[2]) ? 4 : 0;
404 }
405
406 if (UTF16_LOW_HEAD(*start)) {
407 return 0;
408 }
409 return 2;
410 }
411
412
mysqlnd_mbcharlen_utf16(unsigned int utf16)413 static uint mysqlnd_mbcharlen_utf16(unsigned int utf16)
414 {
415 return UTF16_HIGH_HEAD(utf16) ? 4 : 2;
416 }
417 /* }}} */
418
419
420 /* {{{ utf32 functions */
421 static uint
check_mb_utf32(const char * start __attribute ((unused)),const char * end __attribute ((unused)))422 check_mb_utf32(const char *start __attribute((unused)), const char *end __attribute((unused)))
423 {
424 return 4;
425 }
426
427
428 static uint
mysqlnd_mbcharlen_utf32(unsigned int utf32 __attribute ((unused)))429 mysqlnd_mbcharlen_utf32(unsigned int utf32 __attribute((unused)))
430 {
431 return 4;
432 }
433 /* }}} */
434
435 /*
436 The server compiles sometimes the full utf-8 (the mb4) as utf8m4, and the old as utf8,
437 for BC reasons. Sometimes, utf8mb4 is just utf8 but the old charsets are utf8mb3.
438 Change easily now, with a macro, could be made compilastion dependable.
439 */
440
441 #define UTF8_MB4 "utf8mb4"
442 #define UTF8_MB3 "utf8"
443
444 /* {{{ mysqlnd_charsets */
445 const MYSQLND_CHARSET mysqlnd_charsets[] =
446 {
447 { 1, "big5","big5_chinese_ci", 1, 2, "", mysqlnd_mbcharlen_big5, check_mb_big5},
448 { 3, "dec8", "dec8_swedish_ci", 1, 1, "", NULL, NULL},
449 { 4, "cp850", "cp850_general_ci", 1, 1, "", NULL, NULL},
450 { 6, "hp8", "hp8_english_ci", 1, 1, "", NULL, NULL},
451 { 7, "koi8r", "koi8r_general_ci", 1, 1, "", NULL, NULL},
452 { 8, "latin1", "latin1_swedish_ci", 1, 1, "", NULL, NULL},
453 { 5, "latin1", "latin1_german1_ci", 1, 1, "", NULL, NULL}, /* should be after 0x8 because swedish_ci is the default collation */
454 { 9, "latin2", "latin2_general_ci", 1, 1, "", NULL, NULL},
455 { 2, "latin2", "latin2_czech_cs", 1, 1, "", NULL, NULL}, /* should be after 0x9 because general_ci is the default collation */
456 { 10, "swe7", "swe7_swedish_ci", 1, 1, "", NULL, NULL},
457 { 11, "ascii", "ascii_general_ci", 1, 1, "", NULL, NULL},
458 { 12, "ujis", "ujis_japanese_ci", 1, 3, "", mysqlnd_mbcharlen_ujis, check_mb_ujis},
459 { 13, "sjis", "sjis_japanese_ci", 1, 2, "", mysqlnd_mbcharlen_sjis, check_mb_sjis},
460 { 16, "hebrew", "hebrew_general_ci", 1, 1, "", NULL, NULL},
461 { 17, "filename", "filename", 1, 5, "", NULL, NULL},
462 { 18, "tis620", "tis620_thai_ci", 1, 1, "", NULL, NULL},
463 { 19, "euckr", "euckr_korean_ci", 1, 2, "", mysqlnd_mbcharlen_euckr, check_mb_euckr},
464 { 21, "latin2", "latin2_hungarian_ci", 1, 1, "", NULL, NULL},
465 { 27, "latin2", "latin2_croatian_ci", 1, 1, "", NULL, NULL},
466 { 22, "koi8u", "koi8u_general_ci", 1, 1, "", NULL, NULL},
467 { 24, "gb2312", "gb2312_chinese_ci", 1, 2, "", mysqlnd_mbcharlen_gb2312, check_mb_gb2312},
468 { 25, "greek", "greek_general_ci", 1, 1, "", NULL, NULL},
469 { 26, "cp1250", "cp1250_general_ci", 1, 1, "", NULL, NULL},
470 { 28, "gbk", "gbk_chinese_ci", 1, 2, "", mysqlnd_mbcharlen_gbk, check_mb_gbk},
471 { 30, "latin5", "latin5_turkish_ci", 1, 1, "", NULL, NULL},
472 { 31, "latin1", "latin1_german2_ci", 1, 1, "", NULL, NULL},
473 { 15, "latin1", "latin1_danish_ci", 1, 1, "", NULL, NULL},
474 { 32, "armscii8", "armscii8_general_ci", 1, 1, "", NULL, NULL},
475 { 33, UTF8_MB3, UTF8_MB3"_general_ci", 1, 3, "UTF-8 Unicode", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
476 { 35, "ucs2", "ucs2_general_ci", 2, 2, "UCS-2 Unicode", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
477 { 36, "cp866", "cp866_general_ci", 1, 1, "", NULL, NULL},
478 { 37, "keybcs2", "keybcs2_general_ci", 1, 1, "", NULL, NULL},
479 { 38, "macce", "macce_general_ci", 1, 1, "", NULL, NULL},
480 { 39, "macroman", "macroman_general_ci", 1, 1, "", NULL, NULL},
481 { 40, "cp852", "cp852_general_ci", 1, 1, "", NULL, NULL},
482 { 41, "latin7", "latin7_general_ci", 1, 1, "", NULL, NULL},
483 { 20, "latin7", "latin7_estonian_cs", 1, 1, "", NULL, NULL},
484 { 57, "cp1256", "cp1256_general_ci", 1, 1, "", NULL, NULL},
485 { 59, "cp1257", "cp1257_general_ci", 1, 1, "", NULL, NULL},
486 { 63, "binary", "binary", 1, 1, "", NULL, NULL},
487 { 97, "eucjpms", "eucjpms_japanese_ci", 1, 3, "", mysqlnd_mbcharlen_eucjpms, check_mb_eucjpms},
488 { 29, "cp1257", "cp1257_lithuanian_ci", 1, 1, "", NULL, NULL},
489 { 31, "latin1", "latin1_german2_ci", 1, 1, "", NULL, NULL},
490 { 34, "cp1250", "cp1250_czech_cs", 1, 1, "", NULL, NULL},
491 { 42, "latin7", "latin7_general_cs", 1, 1, "", NULL, NULL},
492 { 43, "macce", "macce_bin", 1, 1, "", NULL, NULL},
493 { 44, "cp1250", "cp1250_croatian_ci", 1, 1, "", NULL, NULL},
494 { 45, UTF8_MB4, UTF8_MB4"_general_ci", 1, 4, "UTF-8 Unicode", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
495 { 46, UTF8_MB4, UTF8_MB4"_bin", 1, 4, "UTF-8 Unicode", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
496 { 47, "latin1", "latin1_bin", 1, 1, "", NULL, NULL},
497 { 48, "latin1", "latin1_general_ci", 1, 1, "", NULL, NULL},
498 { 49, "latin1", "latin1_general_cs", 1, 1, "", NULL, NULL},
499 { 51, "cp1251", "cp1251_general_ci", 1, 1, "", NULL, NULL},
500 { 14, "cp1251", "cp1251_bulgarian_ci", 1, 1, "", NULL, NULL},
501 { 23, "cp1251", "cp1251_ukrainian_ci", 1, 1, "", NULL, NULL},
502 { 50, "cp1251", "cp1251_bin", 1, 1, "", NULL, NULL},
503 { 52, "cp1251", "cp1251_general_cs", 1, 1, "", NULL, NULL},
504 { 53, "macroman", "macroman_bin", 1, 1, "", NULL, NULL},
505 { 54, "utf16", "utf16_general_ci", 2, 4, "UTF-16 Unicode", mysqlnd_mbcharlen_utf16, check_mb_utf16},
506 { 55, "utf16", "utf16_bin", 2, 4, "UTF-16 Unicode", mysqlnd_mbcharlen_utf16, check_mb_utf16},
507 { 56, "utf16le", "utf16le_general_ci", 2, 4, "UTF-16LE Unicode", mysqlnd_mbcharlen_utf16, check_mb_utf16},
508 { 58, "cp1257", "cp1257_bin", 1, 1, "", NULL, NULL},
509 /*55*/{ 60, "utf32", "utf32_general_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
510 /*55*/{ 61, "utf32", "utf32_bin", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
511 { 62, "utf16le", "utf16le_bin", 2, 4, "UTF-16LE Unicode", mysqlnd_mbcharlen_utf16, check_mb_utf16},
512 { 64, "armscii8", "armscii8_bin", 1, 1, "", NULL, NULL},
513 { 65, "ascii", "ascii_bin", 1, 1, "", NULL, NULL},
514 { 66, "cp1250", "cp1250_bin", 1, 1, "", NULL, NULL},
515 { 67, "cp1256", "cp1256_bin", 1, 1, "", NULL, NULL},
516 { 68, "cp866", "cp866_bin", 1, 1, "", NULL, NULL},
517 { 69, "dec8", "dec8_bin", 1, 1, "", NULL, NULL},
518 { 70, "greek", "greek_bin", 1, 1, "", NULL, NULL},
519 { 71, "hebrew", "hebrew_bin", 1, 1, "", NULL, NULL},
520 { 72, "hp8", "hp8_bin", 1, 1, "", NULL, NULL},
521 { 73, "keybcs2", "keybcs2_bin", 1, 1, "", NULL, NULL},
522 { 74, "koi8r", "koi8r_bin", 1, 1, "", NULL, NULL},
523 { 75, "koi8u", "koi8u_bin", 1, 1, "", NULL, NULL},
524 { 77, "latin2", "latin2_bin", 1, 1, "", NULL, NULL},
525 { 78, "latin5", "latin5_bin", 1, 1, "", NULL, NULL},
526 { 79, "latin7", "latin7_bin", 1, 1, "", NULL, NULL},
527 { 80, "cp850", "cp850_bin", 1, 1, "", NULL, NULL},
528 { 81, "cp852", "cp852_bin", 1, 1, "", NULL, NULL},
529 { 82, "swe7", "swe7_bin", 1, 1, "", NULL, NULL},
530 { 83, UTF8_MB3, UTF8_MB3"_bin", 1, 3, "UTF-8 Unicode", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
531 { 84, "big5", "big5_bin", 1, 2, "", mysqlnd_mbcharlen_big5, check_mb_big5},
532 { 85, "euckr", "euckr_bin", 1, 2, "", mysqlnd_mbcharlen_euckr, check_mb_euckr},
533 { 86, "gb2312", "gb2312_bin", 1, 2, "", mysqlnd_mbcharlen_gb2312, check_mb_gb2312},
534 { 87, "gbk", "gbk_bin", 1, 2, "", mysqlnd_mbcharlen_gbk, check_mb_gbk},
535 { 88, "sjis", "sjis_bin", 1, 2, "", mysqlnd_mbcharlen_sjis, check_mb_sjis},
536 { 89, "tis620", "tis620_bin", 1, 1, "", NULL, NULL},
537 { 90, "ucs2", "ucs2_bin", 2, 2, "UCS-2 Unicode", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
538 { 91, "ujis", "ujis_bin", 1, 3, "", mysqlnd_mbcharlen_ujis, check_mb_ujis},
539 { 92, "geostd8", "geostd8_general_ci", 1, 1, "", NULL, NULL},
540 { 93, "geostd8", "geostd8_bin", 1, 1, "", NULL, NULL},
541 { 94, "latin1", "latin1_spanish_ci", 1, 1, "", NULL, NULL},
542 { 95, "cp932", "cp932_japanese_ci", 1, 2, "", mysqlnd_mbcharlen_cp932, check_mb_cp932},
543 { 96, "cp932", "cp932_bin", 1, 2, "", mysqlnd_mbcharlen_cp932, check_mb_cp932},
544 { 97, "eucjpms", "eucjpms_japanese_ci", 1, 3, "", mysqlnd_mbcharlen_eucjpms, check_mb_eucjpms},
545 { 98, "eucjpms", "eucjpms_bin", 1, 3, "", mysqlnd_mbcharlen_eucjpms, check_mb_eucjpms},
546 { 99, "cp1250", "cp1250_polish_ci", 1, 1, "", NULL, NULL},
547 { 128, "ucs2", "ucs2_unicode_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
548 { 129, "ucs2", "ucs2_icelandic_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
549 { 130, "ucs2", "ucs2_latvian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
550 { 131, "ucs2", "ucs2_romanian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
551 { 132, "ucs2", "ucs2_slovenian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
552 { 133, "ucs2", "ucs2_polish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
553 { 134, "ucs2", "ucs2_estonian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
554 { 135, "ucs2", "ucs2_spanish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
555 { 136, "ucs2", "ucs2_swedish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
556 { 137, "ucs2", "ucs2_turkish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
557 { 138, "ucs2", "ucs2_czech_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
558 { 139, "ucs2", "ucs2_danish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
559 { 140, "ucs2", "ucs2_lithuanian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
560 { 141, "ucs2", "ucs2_slovak_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
561 { 142, "ucs2", "ucs2_spanish2_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
562 { 143, "ucs2", "ucs2_roman_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
563 { 144, "ucs2", "ucs2_persian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
564 { 145, "ucs2", "ucs2_esperanto_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
565 { 146, "ucs2", "ucs2_hungarian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
566 { 147, "ucs2", "ucs2_sinhala_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
567 { 148, "ucs2", "ucs2_german2_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
568 { 149, "ucs2", "ucs2_croatian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
569 { 150, "ucs2", "ucs2_unicode_520_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
570 { 151, "ucs2", "ucs2_vietnamese_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
571
572 /*56*/{160, "utf32", "utf32_unicode_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
573 /*56*/{161, "utf32", "utf32_icelandic_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
574 /*56*/{162, "utf32", "utf32_latvian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
575 /*56*/{163, "utf32", "utf32_romanian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
576 /*56*/{164, "utf32", "utf32_slovenian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
577 /*56*/{165, "utf32", "utf32_polish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
578 /*56*/{166, "utf32", "utf32_estonian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
579 /*56*/{167, "utf32", "utf32_spanish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
580 /*56*/{168, "utf32", "utf32_swedish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
581 /*56*/{169, "utf32", "utf32_turkish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
582 /*56*/{170, "utf32", "utf32_czech_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
583 /*56*/{171, "utf32", "utf32_danish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
584 /*56*/{172, "utf32", "utf32_lithuanian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
585 /*56*/{173, "utf32", "utf32_slovak_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
586 /*56*/{174, "utf32", "utf32_spanish2_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
587 /*56*/{175, "utf32", "utf32_roman_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
588 /*56*/{176, "utf32", "utf32_persian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
589 /*56*/{177, "utf32", "utf32_esperanto_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
590 /*56*/{178, "utf32", "utf32_hungarian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
591 /*56*/{179, "utf32", "utf32_sinhala_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
592 /*56*/{180, "utf32", "utf32_german2_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
593 /*56*/{181, "utf32", "utf32_croatian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
594 /*56*/{182, "utf32", "utf32_unicode_520_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
595 /*56*/{183, "utf32", "utf32_vietnamese_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
596
597 { 192, UTF8_MB3, UTF8_MB3"_unicode_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
598 { 193, UTF8_MB3, UTF8_MB3"_icelandic_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
599 { 194, UTF8_MB3, UTF8_MB3"_latvian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
600 { 195, UTF8_MB3, UTF8_MB3"_romanian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
601 { 196, UTF8_MB3, UTF8_MB3"_slovenian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
602 { 197, UTF8_MB3, UTF8_MB3"_polish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
603 { 198, UTF8_MB3, UTF8_MB3"_estonian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
604 { 199, UTF8_MB3, UTF8_MB3"_spanish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
605 { 200, UTF8_MB3, UTF8_MB3"_swedish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
606 { 201, UTF8_MB3, UTF8_MB3"_turkish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
607 { 202, UTF8_MB3, UTF8_MB3"_czech_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
608 { 203, UTF8_MB3, UTF8_MB3"_danish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid },
609 { 204, UTF8_MB3, UTF8_MB3"_lithuanian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid },
610 { 205, UTF8_MB3, UTF8_MB3"_slovak_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
611 { 206, UTF8_MB3, UTF8_MB3"_spanish2_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
612 { 207, UTF8_MB3, UTF8_MB3"_roman_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
613 { 208, UTF8_MB3, UTF8_MB3"_persian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
614 { 209, UTF8_MB3, UTF8_MB3"_esperanto_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
615 { 210, UTF8_MB3, UTF8_MB3"_hungarian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
616 { 211, UTF8_MB3, UTF8_MB3"_sinhala_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
617 { 212, UTF8_MB3, UTF8_MB3"_german2_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
618 { 213, UTF8_MB3, UTF8_MB3"_croatian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
619 { 214, UTF8_MB3, UTF8_MB3"_unicode_520_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
620 { 215, UTF8_MB3, UTF8_MB3"_vietnamese_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
621
622 { 224, UTF8_MB4, UTF8_MB4"_unicode_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
623 { 225, UTF8_MB4, UTF8_MB4"_icelandic_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
624 { 226, UTF8_MB4, UTF8_MB4"_latvian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
625 { 227, UTF8_MB4, UTF8_MB4"_romanian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
626 { 228, UTF8_MB4, UTF8_MB4"_slovenian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
627 { 229, UTF8_MB4, UTF8_MB4"_polish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
628 { 230, UTF8_MB4, UTF8_MB4"_estonian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
629 { 231, UTF8_MB4, UTF8_MB4"_spanish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
630 { 232, UTF8_MB4, UTF8_MB4"_swedish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
631 { 233, UTF8_MB4, UTF8_MB4"_turkish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
632 { 234, UTF8_MB4, UTF8_MB4"_czech_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
633 { 235, UTF8_MB4, UTF8_MB4"_danish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
634 { 236, UTF8_MB4, UTF8_MB4"_lithuanian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
635 { 237, UTF8_MB4, UTF8_MB4"_slovak_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
636 { 238, UTF8_MB4, UTF8_MB4"_spanish2_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
637 { 239, UTF8_MB4, UTF8_MB4"_roman_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
638 { 240, UTF8_MB4, UTF8_MB4"_persian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
639 { 241, UTF8_MB4, UTF8_MB4"_esperanto_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
640 { 242, UTF8_MB4, UTF8_MB4"_hungarian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
641 { 243, UTF8_MB4, UTF8_MB4"_sinhala_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
642 { 244, UTF8_MB4, UTF8_MB4"_german2_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
643 { 245, UTF8_MB4, UTF8_MB4"_croatian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
644 { 246, UTF8_MB4, UTF8_MB4"_unicode_520_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
645 { 247, UTF8_MB4, UTF8_MB4"_vietnamese_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
646
647 { 254, UTF8_MB3, UTF8_MB3"_general_cs", 1, 3, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
648 { 0, NULL, NULL, 0, 0, NULL, NULL, NULL}
649 };
650 /* }}} */
651
652
653 /* {{{ mysqlnd_find_charset_nr */
mysqlnd_find_charset_nr(unsigned int charsetnr)654 PHPAPI const MYSQLND_CHARSET * mysqlnd_find_charset_nr(unsigned int charsetnr)
655 {
656 const MYSQLND_CHARSET * c = mysqlnd_charsets;
657
658 do {
659 if (c->nr == charsetnr) {
660 return c;
661 }
662 ++c;
663 } while (c[0].nr != 0);
664 return NULL;
665 }
666 /* }}} */
667
668
669 /* {{{ mysqlnd_find_charset_name */
mysqlnd_find_charset_name(const char * const name)670 PHPAPI const MYSQLND_CHARSET * mysqlnd_find_charset_name(const char * const name)
671 {
672 if (name) {
673 const MYSQLND_CHARSET * c = mysqlnd_charsets;
674 do {
675 if (!strcasecmp(c->name, name)) {
676 return c;
677 }
678 ++c;
679 } while (c[0].nr != 0);
680 }
681 return NULL;
682 }
683 /* }}} */
684
685
686 /* {{{ mysqlnd_cset_escape_quotes */
mysqlnd_cset_escape_quotes(const MYSQLND_CHARSET * const cset,char * newstr,const char * escapestr,size_t escapestr_len TSRMLS_DC)687 PHPAPI ulong mysqlnd_cset_escape_quotes(const MYSQLND_CHARSET * const cset, char *newstr,
688 const char * escapestr, size_t escapestr_len TSRMLS_DC)
689 {
690 const char *newstr_s = newstr;
691 const char *newstr_e = newstr + 2 * escapestr_len;
692 const char *end = escapestr + escapestr_len;
693 zend_bool escape_overflow = FALSE;
694
695 DBG_ENTER("mysqlnd_cset_escape_quotes");
696
697 for (;escapestr < end; escapestr++) {
698 unsigned int len = 0;
699 /* check unicode characters */
700
701 if (cset->char_maxlen > 1 && (len = cset->mb_valid(escapestr, end))) {
702
703 /* check possible overflow */
704 if ((newstr + len) > newstr_e) {
705 escape_overflow = TRUE;
706 break;
707 }
708 /* copy mb char without escaping it */
709 while (len--) {
710 *newstr++ = *escapestr++;
711 }
712 escapestr--;
713 continue;
714 }
715 if (*escapestr == '\'') {
716 if (newstr + 2 > newstr_e) {
717 escape_overflow = TRUE;
718 break;
719 }
720 *newstr++ = '\'';
721 *newstr++ = '\'';
722 } else {
723 if (newstr + 1 > newstr_e) {
724 escape_overflow = TRUE;
725 break;
726 }
727 *newstr++ = *escapestr;
728 }
729 }
730 *newstr = '\0';
731
732 if (escape_overflow) {
733 DBG_RETURN((ulong)~0);
734 }
735 DBG_RETURN((ulong)(newstr - newstr_s));
736 }
737 /* }}} */
738
739
740 /* {{{ mysqlnd_cset_escape_slashes */
mysqlnd_cset_escape_slashes(const MYSQLND_CHARSET * const cset,char * newstr,const char * escapestr,size_t escapestr_len TSRMLS_DC)741 PHPAPI ulong mysqlnd_cset_escape_slashes(const MYSQLND_CHARSET * const cset, char *newstr,
742 const char * escapestr, size_t escapestr_len TSRMLS_DC)
743 {
744 const char *newstr_s = newstr;
745 const char *newstr_e = newstr + 2 * escapestr_len;
746 const char *end = escapestr + escapestr_len;
747 zend_bool escape_overflow = FALSE;
748
749 DBG_ENTER("mysqlnd_cset_escape_slashes");
750 DBG_INF_FMT("charset=%s", cset->name);
751
752 for (;escapestr < end; escapestr++) {
753 char esc = '\0';
754 unsigned int len = 0;
755
756 /* check unicode characters */
757 if (cset->char_maxlen > 1 && (len = cset->mb_valid(escapestr, end))) {
758 /* check possible overflow */
759 if ((newstr + len) > newstr_e) {
760 escape_overflow = TRUE;
761 break;
762 }
763 /* copy mb char without escaping it */
764 while (len--) {
765 *newstr++ = *escapestr++;
766 }
767 escapestr--;
768 continue;
769 }
770 if (cset->char_maxlen > 1 && cset->mb_charlen(*escapestr) > 1) {
771 esc = *escapestr;
772 } else {
773 switch (*escapestr) {
774 case 0:
775 esc = '0';
776 break;
777 case '\n':
778 esc = 'n';
779 break;
780 case '\r':
781 esc = 'r';
782 break;
783 case '\\':
784 case '\'':
785 case '"':
786 esc = *escapestr;
787 break;
788 case '\032':
789 esc = 'Z';
790 break;
791 }
792 }
793 if (esc) {
794 if (newstr + 2 > newstr_e) {
795 escape_overflow = TRUE;
796 break;
797 }
798 /* copy escaped character */
799 *newstr++ = '\\';
800 *newstr++ = esc;
801 } else {
802 if (newstr + 1 > newstr_e) {
803 escape_overflow = TRUE;
804 break;
805 }
806 /* copy non escaped character */
807 *newstr++ = *escapestr;
808 }
809 }
810 *newstr = '\0';
811
812 if (escape_overflow) {
813 DBG_RETURN((ulong)~0);
814 }
815 DBG_RETURN((ulong)(newstr - newstr_s));
816 }
817 /* }}} */
818
819
820 static struct st_mysqlnd_plugin_charsets mysqlnd_plugin_charsets_plugin =
821 {
822 {
823 MYSQLND_PLUGIN_API_VERSION,
824 "charsets",
825 MYSQLND_VERSION_ID,
826 MYSQLND_VERSION,
827 "PHP License 3.01",
828 "Andrey Hristov <andrey@mysql.com>, Ulf Wendel <uwendel@mysql.com>, Georg Richter <georg@mysql.com>",
829 {
830 NULL, /* no statistics , will be filled later if there are some */
831 NULL, /* no statistics */
832 },
833 {
834 NULL /* plugin shutdown */
835 }
836 },
837 {/* methods */
838 mysqlnd_find_charset_nr,
839 mysqlnd_find_charset_name,
840 mysqlnd_cset_escape_quotes,
841 mysqlnd_cset_escape_slashes
842 }
843 };
844
845
846 /* {{{ mysqlnd_charsets_plugin_register */
847 void
mysqlnd_charsets_plugin_register(TSRMLS_D)848 mysqlnd_charsets_plugin_register(TSRMLS_D)
849 {
850 mysqlnd_plugin_register_ex((struct st_mysqlnd_plugin_header *) &mysqlnd_plugin_charsets_plugin TSRMLS_CC);
851 }
852 /* }}} */
853
854
855 /*
856 * Local variables:
857 * tab-width: 4
858 * c-basic-offset: 4
859 * End:
860 * vim600: noet sw=4 ts=4 fdm=marker
861 * vim<600: noet sw=4 ts=4
862 */
863
