61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
#include "first.h"
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#include "http_auth.h"
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#include <string.h>
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static http_auth_backend_t http_auth_backends[8];
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const http_auth_backend_t * http_auth_backend_get (const buffer *name)
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{
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int i = 0;
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while (NULL != http_auth_backends[i].name
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&& 0 != strcmp(http_auth_backends[i].name, name->ptr)) {
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++i;
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}
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return http_auth_backends+i;
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}
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void http_auth_backend_set (const http_auth_backend_t *backend)
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{
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unsigned int i = 0;
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while (NULL != http_auth_backends[i].name) ++i;
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/*(must resize http_auth_backends[] if too many different auth backends)*/
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force_assert(i<(sizeof(http_auth_backends)/sizeof(http_auth_backend_t))-1);
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memcpy(http_auth_backends+i, backend, sizeof(http_auth_backend_t));
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}
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int http_auth_md5_hex2bin (const char *md5hex, size_t len, unsigned char md5bin[16])
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{
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/* validate and transform 32-byte MD5 hex string to 16-byte binary MD5 */
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if (32 != len) return -1; /*(Note: char *md5hex must be a 32-char string)*/
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for (int i = 0; i < 32; i+=2) {
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int hi = md5hex[i];
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int lo = md5hex[i+1];
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if ('0' <= hi && hi <= '9') hi -= '0';
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else if ((hi |= 0x20), 'a' <= hi && hi <= 'f') hi += -'a' + 10;
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else return -1;
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if ('0' <= lo && lo <= '9') lo -= '0';
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else if ((lo |= 0x20), 'a' <= lo && lo <= 'f') lo += -'a' + 10;
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else return -1;
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md5bin[(i >> 1)] = (unsigned char)((hi << 4) | lo);
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}
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return 0;
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}
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#if 0
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int http_auth_md5_hex2lc (char *md5hex)
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{
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/* validate and transform 32-byte MD5 hex string to lowercase */
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int i;
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for (i = 0; md5hex[i]; ++i) {
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int c = md5hex[i];
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if ('0' <= c && c <= '9') continue;
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else if ((c |= 0x20), 'a' <= c && c <= 'f') md5hex[i] = c;
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else return -1;
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}
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return (32 == i) ? 0 : -1; /*(Note: char *md5hex must be a 32-char string)*/
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}
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#endif
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