0
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #include <ngx_config.h>
|
|
8 #include <ngx_core.h>
|
|
9
|
|
10
|
|
11 u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n)
|
|
12 {
|
|
13 if (n == 0) {
|
|
14 return dst;
|
|
15 }
|
|
16
|
|
17 for (/* void */; --n; dst++, src++) {
|
|
18 *dst = *src;
|
|
19
|
|
20 if (*dst == '\0') {
|
|
21 return dst;
|
|
22 }
|
|
23 }
|
|
24
|
|
25 *dst = '\0';
|
|
26
|
|
27 return dst;
|
|
28 }
|
|
29
|
|
30
|
4
|
31 /*
|
|
32 * supported formats:
|
22
|
33 * %[0][width][x][X]O off_t
|
10
|
34 * %[0][width]T time_t
|
|
35 * %[0][width][u][x|X]z ssize_t/size_t
|
|
36 * %[0][width][u][x|X]d int/u_int
|
|
37 * %[0][width][u][x|X]l long
|
|
38 * %[0][width|m][u][x|X]i ngx_int_t/ngx_uint_t
|
|
39 * %[0][width][u][x|X]D int32_t/uint32_t
|
|
40 * %[0][width][u][x|X]L int64_t/uint64_t
|
|
41 * %P ngx_pid_t
|
|
42 * %r rlim_t
|
|
43 * %p pointer
|
|
44 * %V pointer to ngx_str_t
|
|
45 * %s null-terminated string
|
|
46 * %Z '\0'
|
|
47 * %c char
|
|
48 * %% %
|
4
|
49 *
|
10
|
50 * TODO:
|
|
51 * %M ngx_msec_t
|
|
52 * %A ngx_atomic_t
|
|
53 *
|
|
54 * reserved:
|
|
55 * %t ptrdiff_t
|
|
56 * %S null-teminated wchar string
|
|
57 * %C wchar
|
4
|
58 */
|
|
59
|
10
|
60
|
|
61 u_char *ngx_sprintf(u_char *buf, const char *fmt, ...)
|
|
62 {
|
|
63 u_char *p;
|
|
64 va_list args;
|
|
65
|
|
66 va_start(args, fmt);
|
|
67 p = ngx_vsnprintf(buf, /* STUB */ 65536, fmt, args);
|
|
68 va_end(args);
|
|
69
|
|
70 return p;
|
|
71 }
|
|
72
|
|
73
|
|
74 u_char *ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)
|
4
|
75 {
|
10
|
76 u_char *p;
|
|
77 va_list args;
|
|
78
|
|
79 va_start(args, fmt);
|
|
80 p = ngx_vsnprintf(buf, max, fmt, args);
|
|
81 va_end(args);
|
|
82
|
|
83 return p;
|
|
84 }
|
|
85
|
4
|
86
|
10
|
87 u_char *ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
|
|
88 {
|
28
|
89 u_char *p, zero, *last, temp[NGX_INT64_LEN + 1];
|
|
90 /*
|
|
91 * really we need temp[NGX_INT64_LEN] only,
|
|
92 * but icc shows the warning
|
|
93 */
|
10
|
94 int d;
|
|
95 size_t len;
|
|
96 uint32_t ui32;
|
|
97 int64_t i64;
|
|
98 uint64_t ui64;
|
|
99 ngx_str_t *s;
|
|
100 ngx_uint_t width, sign, hexadecimal;
|
|
101 static u_char hex[] = "0123456789abcdef";
|
|
102 static u_char HEX[] = "0123456789ABCDEF";
|
4
|
103
|
10
|
104 if (max == 0) {
|
|
105 return buf;
|
|
106 }
|
|
107
|
|
108 last = buf + max;
|
|
109
|
|
110 while (*fmt && buf < last) {
|
|
111
|
|
112 /*
|
|
113 * "buf < last" means that we could copy at least one character:
|
|
114 * the plain character, "%%", "%c", and minus without the checking
|
|
115 */
|
|
116
|
4
|
117 if (*fmt == '%') {
|
|
118
|
10
|
119 i64 = 0;
|
|
120 ui64 = 0;
|
|
121
|
|
122 zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
|
4
|
123 width = 0;
|
|
124 sign = 1;
|
|
125 hexadecimal = 0;
|
|
126
|
26
|
127 p = temp + NGX_INT64_LEN;
|
4
|
128
|
|
129 while (*fmt >= '0' && *fmt <= '9') {
|
|
130 width = width * 10 + *fmt++ - '0';
|
|
131 }
|
|
132
|
|
133
|
|
134 for ( ;; ) {
|
|
135 switch (*fmt) {
|
|
136
|
|
137 case 'u':
|
|
138 sign = 0;
|
|
139 fmt++;
|
|
140 continue;
|
|
141
|
16
|
142 case 'm':
|
|
143 width = NGX_INT_T_LEN;
|
|
144 fmt++;
|
|
145 continue;
|
|
146
|
10
|
147 case 'X':
|
|
148 hexadecimal = 2;
|
|
149 sign = 0;
|
|
150 fmt++;
|
|
151 continue;
|
|
152
|
4
|
153 case 'x':
|
|
154 hexadecimal = 1;
|
10
|
155 sign = 0;
|
4
|
156 fmt++;
|
|
157 continue;
|
|
158
|
|
159 default:
|
|
160 break;
|
|
161 }
|
|
162
|
|
163 break;
|
|
164 }
|
|
165
|
|
166
|
|
167 switch (*fmt) {
|
|
168
|
10
|
169 case 'V':
|
|
170 s = va_arg(args, ngx_str_t *);
|
4
|
171
|
10
|
172 len = (buf + s->len < last) ? s->len : (size_t) (last - buf);
|
|
173 buf = ngx_cpymem(buf, s->data, len);
|
|
174 fmt++;
|
4
|
175
|
10
|
176 continue;
|
4
|
177
|
|
178 case 's':
|
10
|
179 p = va_arg(args, u_char *);
|
4
|
180
|
10
|
181 while (*p && buf < last) {
|
4
|
182 *buf++ = *p++;
|
|
183 }
|
|
184 fmt++;
|
|
185
|
|
186 continue;
|
|
187
|
10
|
188 case 'O':
|
|
189 i64 = (int64_t) va_arg(args, off_t);
|
|
190 sign = 1;
|
|
191 break;
|
|
192
|
|
193 case 'P':
|
|
194 i64 = (int64_t) va_arg(args, ngx_pid_t);
|
|
195 sign = 1;
|
|
196 break;
|
|
197
|
|
198 case 'T':
|
|
199 i64 = (int64_t) va_arg(args, time_t);
|
|
200 sign = 1;
|
|
201 break;
|
|
202
|
|
203 case 'z':
|
|
204 if (sign) {
|
|
205 i64 = (int64_t) va_arg(args, ssize_t);
|
|
206 } else {
|
|
207 ui64 = (uint64_t) va_arg(args, size_t);
|
|
208 }
|
|
209 break;
|
|
210
|
|
211 case 'i':
|
|
212 if (sign) {
|
|
213 i64 = (int64_t) va_arg(args, ngx_int_t);
|
|
214 } else {
|
|
215 ui64 = (uint64_t) va_arg(args, ngx_uint_t);
|
|
216 }
|
|
217 break;
|
|
218
|
|
219 case 'd':
|
|
220 if (sign) {
|
|
221 i64 = (int64_t) va_arg(args, int);
|
|
222 } else {
|
|
223 ui64 = (uint64_t) va_arg(args, u_int);
|
|
224 }
|
|
225 break;
|
|
226
|
|
227 case 'l':
|
|
228 if (sign) {
|
|
229 i64 = (int64_t) va_arg(args, long);
|
|
230 } else {
|
|
231 ui64 = (uint64_t) va_arg(args, u_long);
|
|
232 }
|
|
233 break;
|
|
234
|
|
235 case 'D':
|
|
236 if (sign) {
|
|
237 i64 = (int64_t) va_arg(args, int32_t);
|
|
238 } else {
|
|
239 ui64 = (uint64_t) va_arg(args, uint32_t);
|
|
240 }
|
|
241 break;
|
|
242
|
|
243 case 'L':
|
|
244 if (sign) {
|
|
245 i64 = va_arg(args, int64_t);
|
|
246 } else {
|
|
247 ui64 = va_arg(args, uint64_t);
|
|
248 }
|
|
249 break;
|
|
250
|
|
251 #if !(NGX_WIN32)
|
|
252 case 'r':
|
|
253 i64 = (int64_t) va_arg(args, rlim_t);
|
|
254 sign = 1;
|
|
255 break;
|
|
256 #endif
|
|
257
|
|
258 case 'p':
|
|
259 ui64 = (uintptr_t) va_arg(args, void *);
|
|
260 hexadecimal = 2;
|
|
261 sign = 0;
|
|
262 zero = '0';
|
|
263 width = 8;
|
|
264 break;
|
|
265
|
6
|
266 case 'c':
|
10
|
267 d = va_arg(args, int);
|
6
|
268 *buf++ = (u_char) (d & 0xff);
|
|
269 fmt++;
|
|
270
|
|
271 continue;
|
|
272
|
10
|
273 case 'Z':
|
|
274 *buf++ = '\0';
|
|
275 fmt++;
|
|
276
|
|
277 continue;
|
|
278
|
4
|
279 case '%':
|
|
280 *buf++ = '%';
|
|
281 fmt++;
|
|
282
|
|
283 continue;
|
|
284
|
|
285 default:
|
|
286 *buf++ = *fmt++;
|
|
287
|
|
288 continue;
|
|
289 }
|
|
290
|
10
|
291 if (sign) {
|
|
292 if (i64 < 0) {
|
|
293 *buf++ = '-';
|
|
294 ui64 = (uint64_t) -i64;
|
|
295
|
|
296 } else {
|
|
297 ui64 = (uint64_t) i64;
|
|
298 }
|
|
299 }
|
|
300
|
|
301 if (hexadecimal == 1) {
|
|
302 do {
|
|
303
|
|
304 /* the "(uint32_t)" cast disables the BCC's warning */
|
|
305 *--p = hex[(uint32_t) (ui64 & 0xf)];
|
|
306
|
|
307 } while (ui64 >>= 4);
|
|
308
|
|
309 } else if (hexadecimal == 2) {
|
|
310 do {
|
|
311
|
|
312 /* the "(uint32_t)" cast disables the BCC's warning */
|
|
313 *--p = HEX[(uint32_t) (ui64 & 0xf)];
|
|
314
|
|
315 } while (ui64 >>= 4);
|
|
316
|
|
317 } else if (ui64 <= NGX_MAX_UINT32_VALUE) {
|
|
318
|
|
319 /*
|
|
320 * To divide 64-bit number and to find the remainder
|
|
321 * on the x86 platform gcc and icc call the libc functions
|
|
322 * [u]divdi3() and [u]moddi3(), they call another function
|
|
323 * in return. On FreeBSD it is the qdivrem() function,
|
|
324 * its source code is about 170 lines of the code.
|
|
325 * The glibc counterpart is about 150 lines of the code.
|
|
326 *
|
|
327 * For 32-bit numbers gcc and icc use the inlined
|
|
328 * multiplication and shifts. For example, unsigned
|
|
329 * "i32 / 10" is compiled to "(i32 * 0xCCCCCCCD) >> 35".
|
|
330 */
|
|
331
|
|
332 ui32 = (uint32_t) ui64;
|
|
333
|
|
334 do {
|
|
335 *--p = (u_char) (ui32 % 10 + '0');
|
|
336 } while (ui32 /= 10);
|
|
337
|
|
338 } else {
|
|
339 do {
|
|
340 *--p = (u_char) (ui64 % 10 + '0');
|
|
341 } while (ui64 /= 10);
|
|
342 }
|
|
343
|
26
|
344 len = (temp + NGX_INT64_LEN) - p;
|
4
|
345
|
10
|
346 while (len++ < width && buf < last) {
|
|
347 *buf++ = zero;
|
4
|
348 }
|
|
349
|
26
|
350 len = (temp + NGX_INT64_LEN) - p;
|
10
|
351 if (buf + len > last) {
|
|
352 len = last - buf;
|
|
353 }
|
|
354
|
|
355 buf = ngx_cpymem(buf, p, len);
|
4
|
356
|
|
357 fmt++;
|
|
358
|
|
359 } else {
|
|
360 *buf++ = *fmt++;
|
|
361 }
|
|
362 }
|
|
363
|
|
364 return buf;
|
|
365 }
|
|
366
|
|
367
|
0
|
368 ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
|
|
369 {
|
|
370 if (n == 0) {
|
|
371 return 0;
|
|
372 }
|
|
373
|
|
374 n--;
|
|
375
|
|
376 for ( ;; ) {
|
|
377 if (s1[n] != s2[n]) {
|
|
378 return s1[n] - s2[n];
|
|
379 }
|
|
380
|
|
381 if (n == 0) {
|
|
382 return 0;
|
|
383 }
|
|
384
|
|
385 n--;
|
|
386 }
|
|
387 }
|
|
388
|
|
389
|
4
|
390 ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
|
|
391 {
|
|
392 u_char c1, c2;
|
|
393
|
|
394 if (n == 0) {
|
|
395 return 0;
|
|
396 }
|
|
397
|
|
398 n--;
|
|
399
|
|
400 for ( ;; ) {
|
|
401 c1 = s1[n];
|
|
402 if (c1 >= 'a' && c1 <= 'z') {
|
|
403 c1 -= 'a' - 'A';
|
|
404 }
|
|
405
|
|
406 c2 = s2[n];
|
|
407 if (c2 >= 'a' && c2 <= 'z') {
|
|
408 c2 -= 'a' - 'A';
|
|
409 }
|
|
410
|
|
411 if (c1 != c2) {
|
|
412 return c1 - c2;
|
|
413 }
|
|
414
|
|
415 if (n == 0) {
|
|
416 return 0;
|
|
417 }
|
|
418
|
|
419 n--;
|
|
420 }
|
|
421 }
|
|
422
|
|
423
|
0
|
424 ngx_int_t ngx_atoi(u_char *line, size_t n)
|
|
425 {
|
|
426 ngx_int_t value;
|
|
427
|
|
428 if (n == 0) {
|
|
429 return NGX_ERROR;
|
|
430 }
|
|
431
|
|
432 for (value = 0; n--; line++) {
|
|
433 if (*line < '0' || *line > '9') {
|
|
434 return NGX_ERROR;
|
|
435 }
|
|
436
|
|
437 value = value * 10 + (*line - '0');
|
|
438 }
|
|
439
|
|
440 if (value < 0) {
|
|
441 return NGX_ERROR;
|
|
442
|
|
443 } else {
|
|
444 return value;
|
|
445 }
|
|
446 }
|
|
447
|
|
448
|
|
449 ngx_int_t ngx_hextoi(u_char *line, size_t n)
|
|
450 {
|
|
451 u_char ch;
|
|
452 ngx_int_t value;
|
|
453
|
|
454 if (n == 0) {
|
|
455 return NGX_ERROR;
|
|
456 }
|
|
457
|
|
458 for (value = 0; n--; line++) {
|
|
459 ch = *line;
|
|
460
|
|
461 if (ch >= '0' && ch <= '9') {
|
|
462 value = value * 16 + (ch - '0');
|
|
463 continue;
|
|
464 }
|
|
465
|
|
466 if (ch >= 'A' && ch <= 'F') {
|
|
467 value = value * 16 + (ch - 'A' + 10);
|
|
468 continue;
|
|
469 }
|
|
470
|
|
471 if (ch >= 'a' && ch <= 'f') {
|
|
472 value = value * 16 + (ch - 'a' + 10);
|
|
473 continue;
|
|
474 }
|
|
475
|
|
476 return NGX_ERROR;
|
|
477 }
|
|
478
|
|
479 if (value < 0) {
|
|
480 return NGX_ERROR;
|
|
481
|
|
482 } else {
|
|
483 return value;
|
|
484 }
|
|
485 }
|
|
486
|
|
487
|
|
488 void ngx_md5_text(u_char *text, u_char *md5)
|
|
489 {
|
|
490 int i;
|
|
491 static u_char hex[] = "0123456789abcdef";
|
|
492
|
|
493 for (i = 0; i < 16; i++) {
|
|
494 *text++ = hex[md5[i] >> 4];
|
|
495 *text++ = hex[md5[i] & 0xf];
|
|
496 }
|
|
497
|
|
498 *text = '\0';
|
|
499 }
|
|
500
|
|
501
|
2
|
502 void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
|
0
|
503 {
|
|
504 u_char *d, *s;
|
|
505 size_t len;
|
|
506 static u_char basis64[] =
|
|
507 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
508
|
|
509 len = src->len;
|
|
510 s = src->data;
|
|
511 d = dst->data;
|
|
512
|
|
513 while (len > 2) {
|
|
514 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
515 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
516 *d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
517 *d++ = basis64[s[2] & 0x3f];
|
|
518
|
|
519 s += 3;
|
|
520 len -= 3;
|
|
521 }
|
|
522
|
|
523 if (len) {
|
|
524 *d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
525
|
|
526 if (len == 1) {
|
|
527 *d++ = basis64[(s[0] & 3) << 4];
|
|
528 *d++ = '=';
|
|
529
|
|
530 } else {
|
|
531 *d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
532 *d++ = basis64[(s[1] & 0x0f) << 2];
|
|
533 }
|
|
534
|
|
535 *d++ = '=';
|
|
536 }
|
|
537
|
|
538 dst->len = d - dst->data;
|
|
539 }
|
|
540
|
|
541
|
2
|
542 ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
0
|
543 {
|
|
544 size_t len;
|
|
545 u_char *d, *s;
|
|
546 static u_char basis64[] =
|
|
547 { 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
548 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
549 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
550 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
551 77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
552 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
553 77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
554 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
555
|
|
556 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
557 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
558 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
559 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
560 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
561 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
562 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
563 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77 };
|
|
564
|
|
565 for (len = 0; len < src->len; len++) {
|
|
566 if (src->data[len] == '=') {
|
|
567 break;
|
|
568 }
|
|
569
|
|
570 if (basis64[src->data[len]] == 77) {
|
|
571 return NGX_ERROR;
|
|
572 }
|
|
573 }
|
|
574
|
|
575 if (len % 4 == 1) {
|
|
576 return NGX_ERROR;
|
|
577 }
|
|
578
|
|
579 s = src->data;
|
|
580 d = dst->data;
|
|
581
|
|
582 while (len > 3) {
|
|
583 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
584 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
585 *d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
|
586
|
|
587 s += 4;
|
|
588 len -= 4;
|
|
589 }
|
|
590
|
|
591 if (len > 1) {
|
|
592 *d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
593 }
|
|
594
|
|
595 if (len > 2) {
|
|
596 *d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
597 }
|
|
598
|
|
599 dst->len = d - dst->data;
|
|
600
|
|
601 return NGX_OK;
|
|
602 }
|
|
603
|
|
604
|
10
|
605 ngx_uint_t ngx_escape_uri(u_char *dst, u_char *src, size_t size,
|
|
606 ngx_uint_t type)
|
0
|
607 {
|
10
|
608 ngx_uint_t i, n;
|
|
609 uint32_t *escape;
|
2
|
610 static u_char hex[] = "0123456789abcdef";
|
10
|
611
|
|
612 static uint32_t uri[] =
|
2
|
613 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
0
|
614
|
2
|
615 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
616 0x80000021, /* 1000 0000 0000 0000 0000 0000 0010 0001 */
|
|
617
|
|
618 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
619 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
620
|
|
621 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
622 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
0
|
623
|
2
|
624 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
625 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
626 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
627 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
628
|
10
|
629 static uint32_t html[] =
|
|
630 { 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
631
|
|
632 /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
633 0x80000021, /* 0000 0000 0000 0000 0000 0000 1010 0101 */
|
|
634
|
|
635 /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
636 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
637
|
|
638 /* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
639 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
640
|
|
641 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
642 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
643 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
644 0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
645
|
|
646
|
|
647 if (type == NGX_ESCAPE_HTML) {
|
|
648 escape = html;
|
|
649
|
|
650 } else {
|
|
651 escape = uri;
|
|
652 }
|
|
653
|
2
|
654 if (dst == NULL) {
|
|
655
|
|
656 /* find the number of the characters to be escaped */
|
0
|
657
|
2
|
658 n = 0;
|
|
659
|
|
660 for (i = 0; i < size; i++) {
|
|
661 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
662 n++;
|
|
663 }
|
|
664 src++;
|
|
665 }
|
|
666
|
|
667 return n;
|
0
|
668 }
|
|
669
|
2
|
670 for (i = 0; i < size; i++) {
|
|
671 if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
672 *dst++ = '%';
|
|
673 *dst++ = hex[*src >> 4];
|
|
674 *dst++ = hex[*src & 0xf];
|
|
675 src++;
|
0
|
676
|
2
|
677 } else {
|
|
678 *dst++ = *src++;
|
|
679 }
|
0
|
680 }
|
|
681
|
10
|
682 return 0;
|
0
|
683 }
|