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comparison src/core/ngx_inet.c @ 1647:c68477afa410

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ngx_inet_addr()
author Igor Sysoev <igor@sysoev.ru>
date Fri, 23 Nov 2007 16:59:24 +0000
parents fe11e2a3946d
children 8075179cae21
comparison
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1646:9638a809d3cd 1647:c68477afa410
4 */ 4 */
5 5
6 6
7 #include <ngx_config.h> 7 #include <ngx_config.h>
8 #include <ngx_core.h> 8 #include <ngx_core.h>
9
10
11 /* AF_INET only */
12
13 in_addr_t
14 ngx_inet_addr(u_char *text, size_t len)
15 {
16 u_char *p, c;
17 in_addr_t addr;
18 ngx_uint_t octet, n;
19
20 addr = 0;
21 octet = 0;
22 n = 0;
23
24 for (p = text; p < text + len; p++) {
25
26 c = *p;
27
28 if (c >= '0' && c <= '9') {
29 octet = octet * 10 + (c - '0');
30 continue;
31 }
32
33 if (c == '.' && octet < 256) {
34 addr = (addr << 8) + octet;
35 octet = 0;
36 n++;
37 continue;
38 }
39
40 return INADDR_NONE;
41 }
42
43 if (n != 3) {
44 return INADDR_NONE;
45 }
46
47 if (octet < 256) {
48 addr = (addr << 8) + octet;
49 return htonl(addr);
50 }
51
52 return INADDR_NONE;
53 }
9 54
10 55
11 /* 56 /*
12 * ngx_sock_ntop() and ngx_inet_ntop() may be implemented as 57 * ngx_sock_ntop() and ngx_inet_ntop() may be implemented as
13 * "ngx_sprintf(text, "%ud.%ud.%ud.%ud", p[0], p[1], p[2], p[3])", however, 58 * "ngx_sprintf(text, "%ud.%ud.%ud.%ud", p[0], p[1], p[2], p[3])", however,