1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 2006-2013 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
26 /* {{{ utf8 functions */
check_mb_utf8mb3_sequence(const char * start,const char * end)27 static unsigned int check_mb_utf8mb3_sequence(const char *start, const char *end)
28 {
29 zend_uchar c;
30
31 if (start >= end) {
32 return 0;
33 }
34
35 c = (zend_uchar) start[0];
36
37 if (c < 0x80) {
38 return 1; /* single byte character */
39 }
40 if (c < 0xC2) {
41 return 0; /* invalid mb character */
42 }
43 if (c < 0xE0) {
44 if (start + 2 > end) {
45 return 0; /* too small */
46 }
47 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40)) {
48 return 0;
49 }
50 return 2;
51 }
52 if (c < 0xF0) {
53 if (start + 3 > end) {
54 return 0; /* too small */
55 }
56 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40 && ((zend_uchar)start[2] ^ 0x80) < 0x40 &&
57 (c >= 0xE1 || (zend_uchar)start[1] >= 0xA0))) {
58 return 0; /* invalid utf8 character */
59 }
60 return 3;
61 }
62 return 0;
63 }
64
65
check_mb_utf8_sequence(const char * start,const char * end)66 static unsigned int check_mb_utf8_sequence(const char *start, const char *end)
67 {
68 zend_uchar c;
69
70 if (start >= end) {
71 return 0;
72 }
73
74 c = (zend_uchar) start[0];
75
76 if (c < 0x80) {
77 return 1; /* single byte character */
78 }
79 if (c < 0xC2) {
80 return 0; /* invalid mb character */
81 }
82 if (c < 0xE0) {
83 if (start + 2 > end) {
84 return 0; /* too small */
85 }
86 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40)) {
87 return 0;
88 }
89 return 2;
90 }
91 if (c < 0xF0) {
92 if (start + 3 > end) {
93 return 0; /* too small */
94 }
95 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40 && ((zend_uchar)start[2] ^ 0x80) < 0x40 &&
96 (c >= 0xE1 || (zend_uchar)start[1] >= 0xA0))) {
97 return 0; /* invalid utf8 character */
98 }
99 return 3;
100 }
101 if (c < 0xF5) {
102 if (start + 4 > end) { /* We need 4 characters */
103 return 0; /* too small */
104 }
105
106 /*
107 UTF-8 quick four-byte mask:
108 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
109 Encoding allows to encode U+00010000..U+001FFFFF
110
111 The maximum character defined in the Unicode standard is U+0010FFFF.
112 Higher characters U+00110000..U+001FFFFF are not used.
113
114 11110000.10010000.10xxxxxx.10xxxxxx == F0.90.80.80 == U+00010000 (min)
115 11110100.10001111.10111111.10111111 == F4.8F.BF.BF == U+0010FFFF (max)
116
117 Valid codes:
118 [F0][90..BF][80..BF][80..BF]
119 [F1][80..BF][80..BF][80..BF]
120 [F2][80..BF][80..BF][80..BF]
121 [F3][80..BF][80..BF][80..BF]
122 [F4][80..8F][80..BF][80..BF]
123 */
124
125 if (!(((zend_uchar)start[1] ^ 0x80) < 0x40 &&
126 ((zend_uchar)start[2] ^ 0x80) < 0x40 &&
127 ((zend_uchar)start[3] ^ 0x80) < 0x40 &&
128 (c >= 0xf1 || (zend_uchar)start[1] >= 0x90) &&
129 (c <= 0xf3 || (zend_uchar)start[1] <= 0x8F)))
130 {
131 return 0; /* invalid utf8 character */
132 }
133 return 4;
134 }
135 return 0;
136 }
137
check_mb_utf8mb3_valid(const char * start,const char * end)138 static unsigned int check_mb_utf8mb3_valid(const char *start, const char *end)
139 {
140 unsigned int len = check_mb_utf8mb3_sequence(start, end);
141 return (len > 1)? len:0;
142 }
143
check_mb_utf8_valid(const char * start,const char * end)144 static unsigned int check_mb_utf8_valid(const char *start, const char *end)
145 {
146 unsigned int len = check_mb_utf8_sequence(start, end);
147 return (len > 1)? len:0;
148 }
149
150
mysqlnd_mbcharlen_utf8mb3(unsigned int utf8)151 static unsigned int mysqlnd_mbcharlen_utf8mb3(unsigned int utf8)
152 {
153 if (utf8 < 0x80) {
154 return 1; /* single byte character */
155 }
156 if (utf8 < 0xC2) {
157 return 0; /* invalid multibyte header */
158 }
159 if (utf8 < 0xE0) {
160 return 2; /* double byte character */
161 }
162 if (utf8 < 0xF0) {
163 return 3; /* triple byte character */
164 }
165 return 0;
166 }
167
168
mysqlnd_mbcharlen_utf8(unsigned int utf8)169 static unsigned int mysqlnd_mbcharlen_utf8(unsigned int utf8)
170 {
171 if (utf8 < 0x80) {
172 return 1; /* single byte character */
173 }
174 if (utf8 < 0xC2) {
175 return 0; /* invalid multibyte header */
176 }
177 if (utf8 < 0xE0) {
178 return 2; /* double byte character */
179 }
180 if (utf8 < 0xF0) {
181 return 3; /* triple byte character */
182 }
183 if (utf8 < 0xF8) {
184 return 4; /* four byte character */
185 }
186 return 0;
187 }
188 /* }}} */
189
190
191 /* {{{ big5 functions */
192 #define valid_big5head(c) (0xA1 <= (unsigned int)(c) && (unsigned int)(c) <= 0xF9)
193 #define valid_big5tail(c) ((0x40 <= (unsigned int)(c) && (unsigned int)(c) <= 0x7E) || \
194 (0xA1 <= (unsigned int)(c) && (unsigned int)(c) <= 0xFE))
195
196 #define isbig5code(c,d) (isbig5head(c) && isbig5tail(d))
197
check_mb_big5(const char * start,const char * end)198 static unsigned int check_mb_big5(const char *start, const char *end)
199 {
200 return (valid_big5head(*(start)) && (end - start) > 1 && valid_big5tail(*(start + 1)) ? 2 : 0);
201 }
202
203
mysqlnd_mbcharlen_big5(unsigned int big5)204 static unsigned int mysqlnd_mbcharlen_big5(unsigned int big5)
205 {
206 return (valid_big5head(big5)) ? 2 : 1;
207 }
208 /* }}} */
209
210
211 /* {{{ cp932 functions */
212 #define valid_cp932head(c) ((0x81 <= (c) && (c) <= 0x9F) || (0xE0 <= (c) && c <= 0xFC))
213 #define valid_cp932tail(c) ((0x40 <= (c) && (c) <= 0x7E) || (0x80 <= (c) && c <= 0xFC))
214
215
check_mb_cp932(const char * start,const char * end)216 static unsigned int check_mb_cp932(const char *start, const char *end)
217 {
218 return (valid_cp932head((zend_uchar)start[0]) && (end - start > 1) &&
219 valid_cp932tail((zend_uchar)start[1])) ? 2 : 0;
220 }
221
222
mysqlnd_mbcharlen_cp932(unsigned int cp932)223 static unsigned int mysqlnd_mbcharlen_cp932(unsigned int cp932)
224 {
225 return (valid_cp932head((zend_uchar)cp932)) ? 2 : 1;
226 }
227 /* }}} */
228
229
230 /* {{{ euckr functions */
231 #define valid_euckr(c) ((0xA1 <= (zend_uchar)(c) && (zend_uchar)(c) <= 0xFE))
232
check_mb_euckr(const char * start,const char * end)233 static unsigned int check_mb_euckr(const char *start, const char *end)
234 {
235 if (end - start <= 1) {
236 return 0; /* invalid length */
237 }
238 if (*(zend_uchar *)start < 0x80) {
239 return 0; /* invalid euckr character */
240 }
241 if (valid_euckr(start[1])) {
242 return 2;
243 }
244 return 0;
245 }
246
247
mysqlnd_mbcharlen_euckr(unsigned int kr)248 static unsigned int mysqlnd_mbcharlen_euckr(unsigned int kr)
249 {
250 return (valid_euckr(kr)) ? 2 : 1;
251 }
252 /* }}} */
253
254
255 /* {{{ eucjpms functions */
256 #define valid_eucjpms(c) (((c) & 0xFF) >= 0xA1 && ((c) & 0xFF) <= 0xFE)
257 #define valid_eucjpms_kata(c) (((c) & 0xFF) >= 0xA1 && ((c) & 0xFF) <= 0xDF)
258 #define valid_eucjpms_ss2(c) (((c) & 0xFF) == 0x8E)
259 #define valid_eucjpms_ss3(c) (((c) & 0xFF) == 0x8F)
260
check_mb_eucjpms(const char * start,const char * end)261 static unsigned int check_mb_eucjpms(const char *start, const char *end)
262 {
263 if (*((zend_uchar *)start) < 0x80) {
264 return 0; /* invalid eucjpms character */
265 }
266 if (valid_eucjpms(start[0]) && (end - start) > 1 && valid_eucjpms(start[1])) {
267 return 2;
268 }
269 if (valid_eucjpms_ss2(start[0]) && (end - start) > 1 && valid_eucjpms_kata(start[1])) {
270 return 2;
271 }
272 if (valid_eucjpms_ss3(start[0]) && (end - start) > 2 && valid_eucjpms(start[1]) &&
273 valid_eucjpms(start[2])) {
274 return 2;
275 }
276 return 0;
277 }
278
279
mysqlnd_mbcharlen_eucjpms(unsigned int jpms)280 static unsigned int mysqlnd_mbcharlen_eucjpms(unsigned int jpms)
281 {
282 if (valid_eucjpms(jpms) || valid_eucjpms_ss2(jpms)) {
283 return 2;
284 }
285 if (valid_eucjpms_ss3(jpms)) {
286 return 3;
287 }
288 return 1;
289 }
290 /* }}} */
291
292
293 /* {{{ gb2312 functions */
294 #define valid_gb2312_head(c) (0xA1 <= (zend_uchar)(c) && (zend_uchar)(c) <= 0xF7)
295 #define valid_gb2312_tail(c) (0xA1 <= (zend_uchar)(c) && (zend_uchar)(c) <= 0xFE)
296
297
check_mb_gb2312(const char * start,const char * end)298 static unsigned int check_mb_gb2312(const char *start, const char *end)
299 {
300 return (valid_gb2312_head((unsigned int)start[0]) && end - start > 1 &&
301 valid_gb2312_tail((unsigned int)start[1])) ? 2 : 0;
302 }
303
304
mysqlnd_mbcharlen_gb2312(unsigned int gb)305 static unsigned int mysqlnd_mbcharlen_gb2312(unsigned int gb)
306 {
307 return (valid_gb2312_head(gb)) ? 2 : 1;
308 }
309 /* }}} */
310
311
312 /* {{{ gbk functions */
313 #define valid_gbk_head(c) (0x81<=(zend_uchar)(c) && (zend_uchar)(c)<=0xFE)
314 #define valid_gbk_tail(c) ((0x40<=(zend_uchar)(c) && (zend_uchar)(c)<=0x7E) || (0x80<=(zend_uchar)(c) && (zend_uchar)(c)<=0xFE))
315
check_mb_gbk(const char * start,const char * end)316 static unsigned int check_mb_gbk(const char *start, const char *end)
317 {
318 return (valid_gbk_head(start[0]) && (end) - (start) > 1 && valid_gbk_tail(start[1])) ? 2 : 0;
319 }
320
mysqlnd_mbcharlen_gbk(unsigned int gbk)321 static unsigned int mysqlnd_mbcharlen_gbk(unsigned int gbk)
322 {
323 return (valid_gbk_head(gbk) ? 2 : 1);
324 }
325 /* }}} */
326
327
328 /* {{{ functions */
329 #define valid_sjis_head(c) ((0x81 <= (c) && (c) <= 0x9F) || (0xE0 <= (c) && (c) <= 0xFC))
330 #define valid_sjis_tail(c) ((0x40 <= (c) && (c) <= 0x7E) || (0x80 <= (c) && (c) <= 0xFC))
331
332
check_mb_sjis(const char * start,const char * end)333 static unsigned int check_mb_sjis(const char *start, const char *end)
334 {
335 return (valid_sjis_head((zend_uchar)start[0]) && (end - start) > 1 && valid_sjis_tail((zend_uchar)start[1])) ? 2 : 0;
336 }
337
338
mysqlnd_mbcharlen_sjis(unsigned int sjis)339 static unsigned int mysqlnd_mbcharlen_sjis(unsigned int sjis)
340 {
341 return (valid_sjis_head((zend_uchar)sjis)) ? 2 : 1;
342 }
343 /* }}} */
344
345
346 /* {{{ ucs2 functions */
check_mb_ucs2(const char * start __attribute ((unused)),const char * end __attribute ((unused)))347 static unsigned int check_mb_ucs2(const char *start __attribute((unused)), const char *end __attribute((unused)))
348 {
349 return 2; /* always 2 */
350 }
351
mysqlnd_mbcharlen_ucs2(unsigned int ucs2 __attribute ((unused)))352 static unsigned int mysqlnd_mbcharlen_ucs2(unsigned int ucs2 __attribute((unused)))
353 {
354 return 2; /* always 2 */
355 }
356 /* }}} */
357
358
359 /* {{{ ujis functions */
360 #define valid_ujis(c) ((0xA1 <= ((c)&0xFF) && ((c)&0xFF) <= 0xFE))
361 #define valid_ujis_kata(c) ((0xA1 <= ((c)&0xFF) && ((c)&0xFF) <= 0xDF))
362 #define valid_ujis_ss2(c) (((c)&0xFF) == 0x8E)
363 #define valid_ujis_ss3(c) (((c)&0xFF) == 0x8F)
364
check_mb_ujis(const char * start,const char * end)365 static unsigned int check_mb_ujis(const char *start, const char *end)
366 {
367 if (*(zend_uchar*)start < 0x80) {
368 return 0; /* invalid ujis character */
369 }
370 if (valid_ujis(*(start)) && valid_ujis(*((start)+1))) {
371 return 2;
372 }
373 if (valid_ujis_ss2(*(start)) && valid_ujis_kata(*((start)+1))) {
374 return 2;
375 }
376 if (valid_ujis_ss3(*(start)) && (end-start) > 2 && valid_ujis(*((start)+1)) && valid_ujis(*((start)+2))) {
377 return 3;
378 }
379 return 0;
380 }
381
382
mysqlnd_mbcharlen_ujis(unsigned int ujis)383 static unsigned int mysqlnd_mbcharlen_ujis(unsigned int ujis)
384 {
385 return (valid_ujis(ujis)? 2: valid_ujis_ss2(ujis)? 2: valid_ujis_ss3(ujis)? 3: 1);
386 }
387 /* }}} */
388
389
390
391 /* {{{ utf16 functions */
392 #define UTF16_HIGH_HEAD(x) ((((zend_uchar) (x)) & 0xFC) == 0xD8)
393 #define UTF16_LOW_HEAD(x) ((((zend_uchar) (x)) & 0xFC) == 0xDC)
394
check_mb_utf16(const char * start,const char * end)395 static unsigned int check_mb_utf16(const char *start, const char *end)
396 {
397 if (start + 2 > end) {
398 return 0;
399 }
400
401 if (UTF16_HIGH_HEAD(*start)) {
402 return (start + 4 <= end) && UTF16_LOW_HEAD(start[2]) ? 4 : 0;
403 }
404
405 if (UTF16_LOW_HEAD(*start)) {
406 return 0;
407 }
408 return 2;
409 }
410
411
mysqlnd_mbcharlen_utf16(unsigned int utf16)412 static uint mysqlnd_mbcharlen_utf16(unsigned int utf16)
413 {
414 return UTF16_HIGH_HEAD(utf16) ? 4 : 2;
415 }
416 /* }}} */
417
418
419 /* {{{ utf32 functions */
420 static uint
check_mb_utf32(const char * start __attribute ((unused)),const char * end __attribute ((unused)))421 check_mb_utf32(const char *start __attribute((unused)), const char *end __attribute((unused)))
422 {
423 return 4;
424 }
425
426
427 static uint
mysqlnd_mbcharlen_utf32(unsigned int utf32 __attribute ((unused)))428 mysqlnd_mbcharlen_utf32(unsigned int utf32 __attribute((unused)))
429 {
430 return 4;
431 }
432 /* }}} */
433
434 /*
435 The server compiles sometimes the full utf-8 (the mb4) as utf8m4, and the old as utf8,
436 for BC reasons. Sometimes, utf8mb4 is just utf8 but the old charsets are utf8mb3.
437 Change easily now, with a macro, could be made compilastion dependable.
438 */
439
440 #define UTF8_MB4 "utf8mb4"
441 #define UTF8_MB3 "utf8"
442
443 /* {{{ mysqlnd_charsets */
444 const MYSQLND_CHARSET mysqlnd_charsets[] =
445 {
446 { 1, "big5","big5_chinese_ci", 1, 2, "", mysqlnd_mbcharlen_big5, check_mb_big5},
447 { 3, "dec8", "dec8_swedisch_ci", 1, 1, "", NULL, NULL},
448 { 4, "cp850", "cp850_general_ci", 1, 1, "", NULL, NULL},
449 { 6, "hp8", "hp8_english_ci", 1, 1, "", NULL, NULL},
450 { 7, "koi8r", "koi8r_general_ci", 1, 1, "", NULL, NULL},
451 { 8, "latin1", "latin1_swedish_ci", 1, 1, "", NULL, NULL},
452 { 5, "latin1", "latin1_german_ci", 1, 1, "", NULL, NULL}, /* should be after 0x9 because swedish_ci is the default collation */
453 { 9, "latin2", "latin2_general_ci", 1, 1, "", NULL, NULL},
454 { 2, "latin2", "latin2_czech_cs", 1, 1, "", NULL, NULL}, /* should be after 0x9 because general_ci is the default collation */
455 { 10, "swe7", "swe7_swedish_ci", 1, 1, "", NULL, NULL},
456 { 11, "ascii", "ascii_general_ci", 1, 1, "", NULL, NULL},
457 { 12, "ujis", "ujis_japanese_ci", 1, 3, "", mysqlnd_mbcharlen_ujis, check_mb_ujis},
458 { 13, "sjis", "sjis_japanese_ci", 1, 2, "", mysqlnd_mbcharlen_sjis, check_mb_sjis},
459 { 16, "hebrew", "hebrew_general_ci", 1, 1, "", NULL, NULL},
460 { 17, "filename", "filename", 1, 5, "", NULL, NULL},
461 { 18, "tis620", "tis620_thai_ci", 1, 1, "", NULL, NULL},
462 { 19, "euckr", "euckr_korean_ci", 1, 2, "", mysqlnd_mbcharlen_euckr, check_mb_euckr},
463 { 21, "latin2", "latin2_hungarian_ci", 1, 1, "", NULL, NULL},
464 { 27, "latin2", "latin2_croatian_ci", 1, 1, "", NULL, NULL},
465 { 22, "koi8u", "koi8u_general_ci", 1, 1, "", NULL, NULL},
466 { 24, "gb2312", "gb2312_chinese_ci", 1, 2, "", mysqlnd_mbcharlen_gb2312, check_mb_gb2312},
467 { 25, "greek", "greek_general_ci", 1, 1, "", NULL, NULL},
468 { 26, "cp1250", "cp1250_general_ci", 1, 1, "", NULL, NULL},
469 { 28, "gbk", "gbk_chinese_ci", 1, 2, "", mysqlnd_mbcharlen_gbk, check_mb_gbk},
470 { 30, "latin5", "latin5_turkish_ci", 1, 1, "", NULL, NULL},
471 { 31, "latin1", "latin1_german2_ci", 1, 1, "", NULL, NULL},
472 { 15, "latin1", "latin1_danish_ci", 1, 1, "", NULL, NULL},
473 { 32, "armscii8", "armscii8_general_ci", 1, 1, "", NULL, NULL},
474 { 33, UTF8_MB3, UTF8_MB3"_general_ci", 1, 3, "UTF-8 Unicode", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
475 { 35, "ucs2", "ucs2_general_ci", 2, 2, "UCS-2 Unicode", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
476 { 36, "cp866", "cp866_general_ci", 1, 1, "", NULL, NULL},
477 { 37, "keybcs2", "keybcs2_general_ci", 1, 1, "", NULL, NULL},
478 { 38, "macce", "macce_general_ci", 1, 1, "", NULL, NULL},
479 { 39, "macroman", "macroman_general_ci", 1, 1, "", NULL, NULL},
480 { 40, "cp852", "cp852_general_ci", 1, 1, "", NULL, NULL},
481 { 41, "latin7", "latin7_general_ci", 1, 1, "", NULL, NULL},
482 { 20, "latin7", "latin7_estonian_cs", 1, 1, "", NULL, NULL},
483 { 57, "cp1256", "cp1256_general_ci", 1, 1, "", NULL, NULL},
484 { 59, "cp1257", "cp1257_general_ci", 1, 1, "", NULL, NULL},
485 { 63, "binary", "binary", 1, 1, "", NULL, NULL},
486 { 97, "eucjpms", "eucjpms_japanese_ci", 1, 3, "", mysqlnd_mbcharlen_eucjpms, check_mb_eucjpms},
487 { 29, "cp1257", "cp1257_lithunian_ci", 1, 1, "", NULL, NULL},
488 { 31, "latin1", "latin1_german2_ci", 1, 1, "", NULL, NULL},
489 { 34, "cp1250", "cp1250_czech_cs", 1, 1, "", NULL, NULL},
490 { 42, "latin7", "latin7_general_cs", 1, 1, "", NULL, NULL},
491 { 43, "macce", "macce_bin", 1, 1, "", NULL, NULL},
492 { 44, "cp1250", "cp1250_croatian_ci", 1, 1, "", NULL, NULL},
493 { 45, UTF8_MB4, UTF8_MB4"_general_ci", 1, 3, "UTF-8 Unicode", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
494 { 46, UTF8_MB4, UTF8_MB4"_bin", 1, 3, "UTF-8 Unicode", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
495 { 47, "latin1", "latin1_bin", 1, 1, "", NULL, NULL},
496 { 48, "latin1", "latin1_general_ci", 1, 1, "", NULL, NULL},
497 { 49, "latin1", "latin1_general_cs", 1, 1, "", NULL, NULL},
498 { 51, "cp1251", "cp1251_general_ci", 1, 1, "", NULL, NULL},
499 { 14, "cp1251", "cp1251_bulgarian_ci", 1, 1, "", NULL, NULL},
500 { 23, "cp1251", "cp1251_ukrainian_ci", 1, 1, "", NULL, NULL},
501 { 50, "cp1251", "cp1251_bin", 1, 1, "", NULL, NULL},
502 { 52, "cp1251", "cp1251_general_cs", 1, 1, "", NULL, NULL},
503 { 53, "macroman", "macroman_bin", 1, 1, "", NULL, NULL},
504 { 54, "utf16", "utf16_general_ci", 2, 4, "UTF-16 Unicode", mysqlnd_mbcharlen_utf16, check_mb_utf16},
505 { 55, "utf16", "utf16_bin", 2, 4, "UTF-16 Unicode", mysqlnd_mbcharlen_utf16, check_mb_utf16},
506 { 58, "cp1257", "cp1257_bin", 1, 1, "", NULL, NULL},
507 #ifdef USED_TO_BE_SO_BEFORE_MYSQL_5_5
508 { 60, "armascii8", "armascii8_bin", 1, 1, "", NULL, NULL},
509 #endif
510 /*55*/{ 60, "utf32", "utf32_general_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
511 /*55*/{ 61, "utf32", "utf32_bin", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
512 { 65, "ascii", "ascii_bin", 1, 1, "", NULL, NULL},
513 { 66, "cp1250", "cp1250_bin", 1, 1, "", NULL, NULL},
514 { 67, "cp1256", "cp1256_bin", 1, 1, "", NULL, NULL},
515 { 68, "cp866", "cp866_bin", 1, 1, "", NULL, NULL},
516 { 69, "dec8", "dec8_bin", 1, 1, "", NULL, NULL},
517 { 70, "greek", "greek_bin", 1, 1, "", NULL, NULL},
518 { 71, "hebew", "hebrew_bin", 1, 1, "", NULL, NULL},
519 { 72, "hp8", "hp8_bin", 1, 1, "", NULL, NULL},
520 { 73, "keybcs2", "keybcs2_bin", 1, 1, "", NULL, NULL},
521 { 74, "koi8r", "koi8r_bin", 1, 1, "", NULL, NULL},
522 { 75, "koi8u", "koi8u_bin", 1, 1, "", NULL, NULL},
523 { 77, "latin2", "latin2_bin", 1, 1, "", NULL, NULL},
524 { 78, "latin5", "latin5_bin", 1, 1, "", NULL, NULL},
525 { 79, "latin7", "latin7_bin", 1, 1, "", NULL, NULL},
526 { 80, "cp850", "cp850_bin", 1, 1, "", NULL, NULL},
527 { 81, "cp852", "cp852_bin", 1, 1, "", NULL, NULL},
528 { 82, "swe7", "swe7_bin", 1, 1, "", NULL, NULL},
529 { 83, UTF8_MB3, UTF8_MB3"_bin", 1, 3, "UTF-8 Unicode", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
530 { 84, "big5", "big5_bin", 1, 2, "", mysqlnd_mbcharlen_big5, check_mb_big5},
531 { 85, "euckr", "euckr_bin", 1, 2, "", mysqlnd_mbcharlen_euckr, check_mb_euckr},
532 { 86, "gb2312", "gb2312_bin", 1, 2, "", mysqlnd_mbcharlen_gb2312, check_mb_gb2312},
533 { 87, "gbk", "gbk_bin", 1, 2, "", mysqlnd_mbcharlen_gbk, check_mb_gbk},
534 { 88, "sjis", "sjis_bin", 1, 2, "", mysqlnd_mbcharlen_sjis, check_mb_sjis},
535 { 89, "tis620", "tis620_bin", 1, 1, "", NULL, NULL},
536 { 90, "ucs2", "ucs2_bin", 2, 2, "UCS-2 Unicode", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
537 { 91, "ujis", "ujis_bin", 1, 3, "", mysqlnd_mbcharlen_ujis, check_mb_ujis},
538 { 92, "geostd8", "geostd8_general_ci", 1, 1, "", NULL, NULL},
539 { 93, "geostd8", "geostd8_bin", 1, 1, "", NULL, NULL},
540 { 94, "latin1", "latin1_spanish_ci", 1, 1, "", NULL, NULL},
541 { 95, "cp932", "cp932_japanese_ci", 1, 2, "", mysqlnd_mbcharlen_cp932, check_mb_cp932},
542 { 96, "cp932", "cp932_bin", 1, 2, "", mysqlnd_mbcharlen_cp932, check_mb_cp932},
543 { 97, "eucjpms", "eucjpms_japanese_ci", 1, 3, "", mysqlnd_mbcharlen_eucjpms, check_mb_eucjpms},
544 { 98, "eucjpms", "eucjpms_bin", 1, 3, "", mysqlnd_mbcharlen_eucjpms, check_mb_eucjpms},
545 { 99, "cp1250", "cp1250_polish_ci", 1, 1, "", NULL, NULL},
546 { 128, "ucs2", "ucs2_unicode_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
547 { 129, "ucs2", "ucs2_icelandic_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
548 { 130, "ucs2", "ucs2_latvian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
549 { 131, "ucs2", "ucs2_romanian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
550 { 132, "ucs2", "ucs2_slovenian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
551 { 133, "ucs2", "ucs2_polish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
552 { 134, "ucs2", "ucs2_estonian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
553 { 135, "ucs2", "ucs2_spanish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
554 { 136, "ucs2", "ucs2_swedish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
555 { 137, "ucs2", "ucs2_turkish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
556 { 138, "ucs2", "ucs2_czech_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
557 { 139, "ucs2", "ucs2_danish_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
558 { 140, "ucs2", "ucs2_lithunian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
559 { 141, "ucs2", "ucs2_slovak_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
560 { 142, "ucs2", "ucs2_spanish2_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
561 { 143, "ucs2", "ucs2_roman_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
562 { 144, "ucs2", "ucs2_persian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
563 { 145, "ucs2", "ucs2_esperanto_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
564 { 146, "ucs2", "ucs2_hungarian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
565 { 147, "ucs2", "ucs2_sinhala_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
566 { 148, "ucs2", "ucs2_german2_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
567 { 149, "ucs2", "ucs2_croatian_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
568 { 150, "ucs2", "ucs2_unicode_520_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
569 { 151, "ucs2", "ucs2_vietnamese_ci", 2, 2, "", mysqlnd_mbcharlen_ucs2, check_mb_ucs2},
570
571 /*56*/{160, "utf32", "utf32_unicode_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
572 /*56*/{161, "utf32", "utf32_icelandic_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
573 /*56*/{162, "utf32", "utf32_latvian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
574 /*56*/{163, "utf32", "utf32_romanian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
575 /*56*/{164, "utf32", "utf32_slovenian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
576 /*56*/{165, "utf32", "utf32_polish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
577 /*56*/{166, "utf32", "utf32_estonian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
578 /*56*/{167, "utf32", "utf32_spanish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
579 /*56*/{168, "utf32", "utf32_swedish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
580 /*56*/{169, "utf32", "utf32_turkish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
581 /*56*/{170, "utf32", "utf32_czech_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
582 /*56*/{171, "utf32", "utf32_danish_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
583 /*56*/{172, "utf32", "utf32_lithuanian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
584 /*56*/{173, "utf32", "utf32_slovak_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
585 /*56*/{174, "utf32", "utf32_spanish2_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
586 /*56*/{175, "utf32", "utf32_roman_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
587 /*56*/{176, "utf32", "utf32_persian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
588 /*56*/{177, "utf32", "utf32_esperanto_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
589 /*56*/{178, "utf32", "utf32_hungarian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
590 /*56*/{179, "utf32", "utf32_sinhala_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
591 /*56*/{180, "utf32", "utf32_german2_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
592 /*56*/{181, "utf32", "utf32_croatian_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
593 /*56*/{182, "utf32", "utf32_unicode_520_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
594 /*56*/{183, "utf32", "utf32_vietnamese_ci", 4, 4, "UTF-32 Unicode", mysqlnd_mbcharlen_utf32, check_mb_utf32},
595
596 { 192, UTF8_MB3, UTF8_MB3"_general_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
597 { 193, UTF8_MB3, UTF8_MB3"_icelandic_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
598 { 194, UTF8_MB3, UTF8_MB3"_latvian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
599 { 195, UTF8_MB3, UTF8_MB3"_romanian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
600 { 196, UTF8_MB3, UTF8_MB3"_slovenian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
601 { 197, UTF8_MB3, UTF8_MB3"_polish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
602 { 198, UTF8_MB3, UTF8_MB3"_estonian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
603 { 199, UTF8_MB3, UTF8_MB3"_spanish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
604 { 200, UTF8_MB3, UTF8_MB3"_swedish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
605 { 201, UTF8_MB3, UTF8_MB3"_turkish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
606 { 202, UTF8_MB3, UTF8_MB3"_czech_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
607 { 203, UTF8_MB3, UTF8_MB3"_danish_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid },
608 { 204, UTF8_MB3, UTF8_MB3"_lithunian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid },
609 { 205, UTF8_MB3, UTF8_MB3"_slovak_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
610 { 206, UTF8_MB3, UTF8_MB3"_spanish2_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
611 { 207, UTF8_MB3, UTF8_MB3"_roman_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
612 { 208, UTF8_MB3, UTF8_MB3"_persian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
613 { 209, UTF8_MB3, UTF8_MB3"_esperanto_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
614 { 210, UTF8_MB3, UTF8_MB3"_hungarian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
615 { 211, UTF8_MB3, UTF8_MB3"_sinhala_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
616 { 211, UTF8_MB3, UTF8_MB3"_german2_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
617 { 213, UTF8_MB3, UTF8_MB3"_croatian_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
618 { 214, UTF8_MB3, UTF8_MB3"_unicode_520_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
619 { 215, UTF8_MB3, UTF8_MB3"_vietnamese_ci", 1, 3, "", mysqlnd_mbcharlen_utf8mb3, check_mb_utf8mb3_valid},
620
621 { 224, UTF8_MB4, UTF8_MB4"_unicode_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
622 { 225, UTF8_MB4, UTF8_MB4"_icelandic_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
623 { 226, UTF8_MB4, UTF8_MB4"_latvian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
624 { 227, UTF8_MB4, UTF8_MB4"_romanian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
625 { 228, UTF8_MB4, UTF8_MB4"_slovenian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
626 { 229, UTF8_MB4, UTF8_MB4"_polish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
627 { 230, UTF8_MB4, UTF8_MB4"_estonian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
628 { 231, UTF8_MB4, UTF8_MB4"_spanish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
629 { 232, UTF8_MB4, UTF8_MB4"_swedish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
630 { 233, UTF8_MB4, UTF8_MB4"_turkish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
631 { 234, UTF8_MB4, UTF8_MB4"_czech_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
632 { 235, UTF8_MB4, UTF8_MB4"_danish_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
633 { 236, UTF8_MB4, UTF8_MB4"_lithuanian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
634 { 237, UTF8_MB4, UTF8_MB4"_slovak_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
635 { 238, UTF8_MB4, UTF8_MB4"_spanish2_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
636 { 239, UTF8_MB4, UTF8_MB4"_roman_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
637 { 240, UTF8_MB4, UTF8_MB4"_persian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
638 { 241, UTF8_MB4, UTF8_MB4"_esperanto_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
639 { 242, UTF8_MB4, UTF8_MB4"_hungarian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
640 { 243, UTF8_MB4, UTF8_MB4"_sinhala_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
641 { 244, UTF8_MB4, UTF8_MB4"_german2_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
642 { 245, UTF8_MB4, UTF8_MB4"_croatian_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
643 { 246, UTF8_MB4, UTF8_MB4"_unicode_520_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
644 { 247, UTF8_MB4, UTF8_MB4"_vietnamese_ci", 1, 4, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
645
646 { 254, UTF8_MB3, UTF8_MB3"_general_cs", 1, 3, "", mysqlnd_mbcharlen_utf8, check_mb_utf8_valid},
647 { 0, NULL, NULL, 0, 0, NULL, NULL, NULL}
648 };
649 /* }}} */
650
651
652 /* {{{ mysqlnd_find_charset_nr */
mysqlnd_find_charset_nr(unsigned int charsetnr)653 PHPAPI const MYSQLND_CHARSET * mysqlnd_find_charset_nr(unsigned int charsetnr)
654 {
655 const MYSQLND_CHARSET * c = mysqlnd_charsets;
656
657 do {
658 if (c->nr == charsetnr) {
659 return c;
660 }
661 ++c;
662 } while (c[0].nr != 0);
663 return NULL;
664 }
665 /* }}} */
666
667
668 /* {{{ mysqlnd_find_charset_name */
mysqlnd_find_charset_name(const char * const name)669 PHPAPI const MYSQLND_CHARSET * mysqlnd_find_charset_name(const char * const name)
670 {
671 const MYSQLND_CHARSET *c = mysqlnd_charsets;
672
673 do {
674 if (!strcasecmp(c->name, name)) {
675 return c;
676 }
677 ++c;
678 } while (c[0].nr != 0);
679 return NULL;
680 }
681 /* }}} */
682
683
684 /* {{{ mysqlnd_cset_escape_quotes */
mysqlnd_cset_escape_quotes(const MYSQLND_CHARSET * const cset,char * newstr,const char * escapestr,size_t escapestr_len TSRMLS_DC)685 PHPAPI ulong mysqlnd_cset_escape_quotes(const MYSQLND_CHARSET * const cset, char *newstr,
686 const char * escapestr, size_t escapestr_len TSRMLS_DC)
687 {
688 const char *newstr_s = newstr;
689 const char *newstr_e = newstr + 2 * escapestr_len;
690 const char *end = escapestr + escapestr_len;
691 zend_bool escape_overflow = FALSE;
692
693 DBG_ENTER("mysqlnd_cset_escape_quotes");
694
695 for (;escapestr < end; escapestr++) {
696 unsigned int len = 0;
697 /* check unicode characters */
698
699 if (cset->char_maxlen > 1 && (len = cset->mb_valid(escapestr, end))) {
700
701 /* check possible overflow */
702 if ((newstr + len) > newstr_e) {
703 escape_overflow = TRUE;
704 break;
705 }
706 /* copy mb char without escaping it */
707 while (len--) {
708 *newstr++ = *escapestr++;
709 }
710 escapestr--;
711 continue;
712 }
713 if (*escapestr == '\'') {
714 if (newstr + 2 > newstr_e) {
715 escape_overflow = TRUE;
716 break;
717 }
718 *newstr++ = '\'';
719 *newstr++ = '\'';
720 } else {
721 if (newstr + 1 > newstr_e) {
722 escape_overflow = TRUE;
723 break;
724 }
725 *newstr++ = *escapestr;
726 }
727 }
728 *newstr = '\0';
729
730 if (escape_overflow) {
731 DBG_RETURN((ulong)~0);
732 }
733 DBG_RETURN((ulong)(newstr - newstr_s));
734 }
735 /* }}} */
736
737
738 /* {{{ mysqlnd_cset_escape_slashes */
mysqlnd_cset_escape_slashes(const MYSQLND_CHARSET * const cset,char * newstr,const char * escapestr,size_t escapestr_len TSRMLS_DC)739 PHPAPI ulong mysqlnd_cset_escape_slashes(const MYSQLND_CHARSET * const cset, char *newstr,
740 const char * escapestr, size_t escapestr_len TSRMLS_DC)
741 {
742 const char *newstr_s = newstr;
743 const char *newstr_e = newstr + 2 * escapestr_len;
744 const char *end = escapestr + escapestr_len;
745 zend_bool escape_overflow = FALSE;
746
747 DBG_ENTER("mysqlnd_cset_escape_slashes");
748 DBG_INF_FMT("charset=%s", cset->name);
749
750 for (;escapestr < end; escapestr++) {
751 char esc = '\0';
752 unsigned int len = 0;
753
754 /* check unicode characters */
755 if (cset->char_maxlen > 1 && (len = cset->mb_valid(escapestr, end))) {
756 /* check possible overflow */
757 if ((newstr + len) > newstr_e) {
758 escape_overflow = TRUE;
759 break;
760 }
761 /* copy mb char without escaping it */
762 while (len--) {
763 *newstr++ = *escapestr++;
764 }
765 escapestr--;
766 continue;
767 }
768 if (cset->char_maxlen > 1 && cset->mb_charlen(*escapestr) > 1) {
769 esc = *escapestr;
770 } else {
771 switch (*escapestr) {
772 case 0:
773 esc = '0';
774 break;
775 case '\n':
776 esc = 'n';
777 break;
778 case '\r':
779 esc = 'r';
780 break;
781 case '\\':
782 case '\'':
783 case '"':
784 esc = *escapestr;
785 break;
786 case '\032':
787 esc = 'Z';
788 break;
789 }
790 }
791 if (esc) {
792 if (newstr + 2 > newstr_e) {
793 escape_overflow = TRUE;
794 break;
795 }
796 /* copy escaped character */
797 *newstr++ = '\\';
798 *newstr++ = esc;
799 } else {
800 if (newstr + 1 > newstr_e) {
801 escape_overflow = TRUE;
802 break;
803 }
804 /* copy non escaped character */
805 *newstr++ = *escapestr;
806 }
807 }
808 *newstr = '\0';
809
810 if (escape_overflow) {
811 DBG_RETURN((ulong)~0);
812 }
813 DBG_RETURN((ulong)(newstr - newstr_s));
814 }
815 /* }}} */
816
817 /*
818 * Local variables:
819 * tab-width: 4
820 * c-basic-offset: 4
821 * End:
822 * vim600: noet sw=4 ts=4 fdm=marker
823 * vim<600: noet sw=4 ts=4
824 */
825
