nginx-quic: src/core/ngx_string.c comparison

r1542, r1543, r1544, r1549, r1550, r1551, r1555 merge: *) ngx_strstrn() and ngx_strcasestrn() *) fix memcached END test

comparison

equal deleted inserted replaced

-:f5e9d597a751
+:d5db0e96bcc6
 return buf;
 }
 /*
-* We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII string only,
+* We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII strings only,
 * and implement our own ngx_strcasecmp()/ngx_strncasecmp()
 * to avoid libc locale overhead.  Besides, we use the ngx_uint_t's
 * instead of the u_char's, because they are slightly faster.
 */
 return c1 - c2;
 }
 return 0;
+}
+/*
+* ngx_strstrn() and ngx_strcasestrn() are intended to search for static
+* substring with known length in null-terminated string. The argument n
+* must be length of the second substring - 1.
+*/
+u_char *
+ngx_strstrn(u_char *s1, char *s2, size_t n)
+{
+u_char  c1, c2;
+c2 = *(u_char *) s2++;
+do {
+do {
+c1 = *s1++;
+if (c1 == 0) {
+return NULL;
+}
+} while (c1 != c2);
+} while (ngx_strncmp(s1, (u_char *) s2, n) != 0);
+return --s1;
+}
+u_char *
+ngx_strcasestrn(u_char *s1, char *s2, size_t n)
+{
+ngx_uint_t  c1, c2;
+c2 = (ngx_uint_t) *s2++;
+c2  = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
+do {
+do {
+c1 = (ngx_uint_t) *s1++;
+if (c1 == 0) {
+return NULL;
+}
+c1  = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
+} while (c1 != c2);
+} while (ngx_strncasecmp(s1, (u_char *) s2, n) != 0);
+return --s1;
 }
 ngx_int_t
 ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)

Mercurial > hg > nginx-quic