diff options
author | Igor Sysoev <igor@sysoev.ru> | 2008-08-26 18:19:37 +0400 |
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committer | Igor Sysoev <igor@sysoev.ru> | 2008-08-26 18:19:37 +0400 |
commit | 9c388c0a7fc86beeb584744b5bd5884884111732 (patch) | |
tree | 10aabef8f9f453f5ab7880123dccdae3e41b29c9 /src/core | |
parent | caa4a45c0f7e885460fdca075b32b44c8cf0eae2 (diff) |
*) refactor ngx_ptocidr()
*) allow address without bitmask
*) thus now ngx_http_geo_module accepts addresses without bitmask
Diffstat (limited to 'src/core')
-rw-r--r-- | src/core/ngx_inet.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/src/core/ngx_inet.c b/src/core/ngx_inet.c index 1d2987d62..e7b49821a 100644 --- a/src/core/ngx_inet.c +++ b/src/core/ngx_inet.c @@ -102,43 +102,48 @@ ngx_inet_ntop(int family, void *addr, u_char *text, size_t len) ngx_int_t ngx_ptocidr(ngx_str_t *text, void *cidr) { - ngx_int_t m; - ngx_uint_t i; + u_char *addr, *mask, *last; + ngx_int_t shift; ngx_inet_cidr_t *in_cidr; in_cidr = cidr; + addr = text->data; + last = addr + text->len; - for (i = 0; i < text->len; i++) { - if (text->data[i] == '/') { - break; - } - } + mask = ngx_strlchr(addr, last, '/'); - if (i == text->len) { - return NGX_ERROR; - } + in_cidr->addr = ngx_inet_addr(addr, (mask ? mask : last) - addr); - text->data[i] = '\0'; - in_cidr->addr = inet_addr((char *) text->data); - text->data[i] = '/'; if (in_cidr->addr == INADDR_NONE) { return NGX_ERROR; } - m = ngx_atoi(&text->data[i + 1], text->len - (i + 1)); - if (m == NGX_ERROR) { + if (mask == NULL) { + in_cidr->mask = 0xffffffff; + return NGX_OK; + } + + mask++; + + shift = ngx_atoi(mask, last - mask); + if (shift == NGX_ERROR) { return NGX_ERROR; } - if (m == 0) { + if (shift == 0) { /* the x86 compilers use the shl instruction that shifts by modulo 32 */ in_cidr->mask = 0; - return NGX_OK; + + if (in_cidr->addr == 0) { + return NGX_OK; + } + + return NGX_DONE; } - in_cidr->mask = htonl((ngx_uint_t) (0 - (1 << (32 - m)))); + in_cidr->mask = htonl((ngx_uint_t) (0 - (1 << (32 - shift)))); if (in_cidr->addr == (in_cidr->addr & in_cidr->mask)) { return NGX_OK; |