Mercurial > hg > nginx
diff src/core/ngx_inet.c @ 291:117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 16 Mar 2004 13:35:20 +0000 |
parents | 87e73f067470 |
children | 0bf903191ceb |
line wrap: on
line diff
--- a/src/core/ngx_inet.c +++ b/src/core/ngx_inet.c @@ -3,14 +3,62 @@ #include <ngx_core.h> +ngx_inline static size_t ngx_sprint_uchar(u_char *text, u_char c, size_t len) +{ + size_t n; + ngx_uint_t c1, c2; + + n = 0; + + if (len == n) { + return n; + } + + c1 = c / 100; + + if (c1) { + *text++ = (u_char) (c1 + '0'); + n++; + + if (len == n) { + return n; + } + } + + c2 = (c % 100) / 10; + + if (c1 || c2) { + *text++ = (u_char) (c2 + '0'); + n++; + + if (len == n) { + return n; + } + } + + c2 = c % 10; + + *text++ = (u_char) (c2 + '0'); + n++; + + return n; +} + + /* AF_INET only */ size_t ngx_sock_ntop(int family, struct sockaddr *addr, u_char *text, size_t len) { u_char *p; + size_t n; + ngx_uint_t i; struct sockaddr_in *addr_in; + if (len == 0) { + return 0; + } + if (family != AF_INET) { return 0; } @@ -18,19 +66,101 @@ size_t ngx_sock_ntop(int family, struct addr_in = (struct sockaddr_in *) addr; p = (u_char *) &addr_in->sin_addr; + if (len > INET_ADDRSTRLEN) { + len = INET_ADDRSTRLEN; + } + + n = ngx_sprint_uchar(text, p[0], len); + + i = 1; + + do { + if (len == n) { + text[n - 1] = '\0'; + return n; + } + + text[n++] = '.'; + + if (len == n) { + text[n - 1] = '\0'; + return n; + } + + n += ngx_sprint_uchar(&text[n], p[i++], len - n); + + } while (i < 4); + + if (len == n) { + text[n] = '\0'; + return n; + } + + text[n] = '\0'; + + return n; + +#if 0 return ngx_snprintf((char *) text, len > INET_ADDRSTRLEN ? INET_ADDRSTRLEN : len, "%u.%u.%u.%u", p[0], p[1], p[2], p[3]); +#endif } -size_t ngx_inet_ntop(int family, u_char *addr, u_char *text, size_t len) +size_t ngx_inet_ntop(int family, void *addr, u_char *text, size_t len) { + u_char *p; + size_t n; + ngx_uint_t i; + + if (len == 0) { + return 0; + } + if (family != AF_INET) { return 0; } + p = (u_char *) addr; + + if (len > INET_ADDRSTRLEN) { + len = INET_ADDRSTRLEN; + } + + n = ngx_sprint_uchar(text, p[0], len); + + i = 1; + + do { + if (len == n) { + text[n - 1] = '\0'; + return n; + } + + text[n++] = '.'; + + if (len == n) { + text[n - 1] = '\0'; + return n; + } + + n += ngx_sprint_uchar(&text[n], p[i++], len - n); + + } while (i < 4); + + if (len == n) { + text[n] = '\0'; + return n; + } + + text[n] = '\0'; + + return n; + +#if 0 return ngx_snprintf((char *) text, len > INET_ADDRSTRLEN ? INET_ADDRSTRLEN : len, - "%u.%u.%u.%u", addr[0], addr[1], addr[2], addr[3]); + "%u.%u.%u.%u", p[0], p[1], p[2], p[3]); +#endif }