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comparison src/core/ngx_string.c @ 1542:f5bd1a7ed2cd

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ngx_strstrn() and ngx_strcasestrn()
author Igor Sysoev <igor@sysoev.ru>
date Wed, 26 Sep 2007 19:25:52 +0000
parents 22629796df09
children 998c44b19e30
comparison
equal deleted inserted replaced
1541:22629796df09 1542:f5bd1a7ed2cd
501 501
502 return 0; 502 return 0;
503 } 503 }
504 504
505 505
506 u_char *
507 ngx_strstrn(u_char *s1, char *s2, size_t n)
508 {
509 u_char c1, c2;
510
511 c2 = *(u_char *) s2++;
512
513 do {
514 do {
515 c1 = *s1++;
516
517 if (c1 == 0) {
518 return NULL;
519 }
520
521 } while (c1 != c2);
522
523 } while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
524
525 return --s1;
526 }
527
528
529 u_char *
530 ngx_strcasestrn(u_char *s1, char *s2, size_t n)
531 {
532 ngx_uint_t c1, c2;
533
534 c2 = (ngx_uint_t) *s2++;
535 c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
536
537 do {
538 do {
539 c1 = (ngx_uint_t) *s1++;
540
541 if (c1 == 0) {
542 return NULL;
543 }
544
545 c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
546
547 } while (c1 != c2);
548
549 } while (ngx_strncasecmp(s1, (u_char *) s2, n) != 0);
550
551 return --s1;
552 }
553
554
506 ngx_int_t 555 ngx_int_t
507 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n) 556 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
508 { 557 {
509 if (n == 0) { 558 if (n == 0) {
510 return 0; 559 return 0;