Mercurial > hg > nginx
diff src/core/ngx_inet.c @ 1647:c68477afa410
ngx_inet_addr()
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 23 Nov 2007 16:59:24 +0000 |
parents | fe11e2a3946d |
children | 8075179cae21 |
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--- a/src/core/ngx_inet.c +++ b/src/core/ngx_inet.c @@ -8,6 +8,51 @@ #include <ngx_core.h> +/* AF_INET only */ + +in_addr_t +ngx_inet_addr(u_char *text, size_t len) +{ + u_char *p, c; + in_addr_t addr; + ngx_uint_t octet, n; + + addr = 0; + octet = 0; + n = 0; + + for (p = text; p < text + len; p++) { + + c = *p; + + if (c >= '0' && c <= '9') { + octet = octet * 10 + (c - '0'); + continue; + } + + if (c == '.' && octet < 256) { + addr = (addr << 8) + octet; + octet = 0; + n++; + continue; + } + + return INADDR_NONE; + } + + if (n != 3) { + return INADDR_NONE; + } + + if (octet < 256) { + addr = (addr << 8) + octet; + return htonl(addr); + } + + return INADDR_NONE; +} + + /* * ngx_sock_ntop() and ngx_inet_ntop() may be implemented as * "ngx_sprintf(text, "%ud.%ud.%ud.%ud", p[0], p[1], p[2], p[3])", however,