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comparison src/core/ngx_inet.c @ 368:15c84a40e87d

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nginx-0.0.7-2004-06-24-20:07:04 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 24 Jun 2004 16:07:04 +0000
parents 0bf903191ceb
children 37b5381fb6d8
comparison
equal deleted inserted replaced
367:ceec87d1c2b3 368:15c84a40e87d
168 168
169 /* AF_INET only */ 169 /* AF_INET only */
170 170
171 ngx_int_t ngx_ptocidr(ngx_str_t *text, void *cidr) 171 ngx_int_t ngx_ptocidr(ngx_str_t *text, void *cidr)
172 { 172 {
173 ngx_int_t m;
173 ngx_uint_t i; 174 ngx_uint_t i;
174 ngx_inet_cidr_t *in_cidr; 175 ngx_inet_cidr_t *in_cidr;
175 176
176 in_cidr = cidr; 177 in_cidr = cidr;
177 178
190 text->data[i] = '/'; 191 text->data[i] = '/';
191 if (in_cidr->addr == INADDR_NONE) { 192 if (in_cidr->addr == INADDR_NONE) {
192 return NGX_ERROR; 193 return NGX_ERROR;
193 } 194 }
194 195
195 in_cidr->mask = ngx_atoi(&text->data[i + 1], text->len - (i + 1)); 196 m = ngx_atoi(&text->data[i + 1], text->len - (i + 1));
196 if (in_cidr->mask == (in_addr_t) NGX_ERROR) { 197 if (m == NGX_ERROR) {
197 return NGX_ERROR; 198 return NGX_ERROR;
198 } 199 }
199 200
201 if (m == 0) {
202
203 /* the x86 compilers use the shl instruction that shifts by modulo 32 */
204
205 in_cidr->mask = 0;
206 return NGX_OK;
207 }
208
209 in_cidr->mask = (ngx_uint_t) (0 - (1 << (32 - m)));
210
200 return NGX_OK; 211 return NGX_OK;
201 } 212 }