44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#define _XOPEN_SOURCE
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#include <sys/types.h>
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#ifdef __dietlibc__
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#include <md5.h>
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#else
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#include <openssl/md5.h>
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#define MD5Init MD5_Init
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#define MD5Update MD5_Update
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#define MD5Final MD5_Final
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#endif
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#include <unistd.h>
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#include <stdlib.h>
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#include <alloca.h>
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#include <string.h>
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#include "ldap.h"
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#include "auth.h"
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#include <libowfat/str.h>
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#include <libowfat/textcode.h>
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#include <libowfat/byte.h>
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int check_password(const char* fromdb,struct string* plaintext) {
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if (str_start(fromdb,"{MD5}")) {
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unsigned char digest[17];
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char md5[40];
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MD5_CTX c;
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MD5Init(&c);
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MD5Update(&c,(unsigned char*)plaintext->s,plaintext->l);
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MD5Final(digest,&c);
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digest[16]=0;
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md5[fmt_base64(md5,(char*)digest,16)]=0;
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if (str_equal(md5,fromdb+5))
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return 1;
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}
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if (plaintext->l<100 && (str_start(fromdb,"$1$") || strlen(fromdb)==13)) {
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char* c=alloca(plaintext->l+1);
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byte_copy(c,plaintext->l,plaintext->s);
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c[plaintext->l]=0;
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if (str_equal(crypt(c,fromdb),fromdb)) return 1;
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}
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if (plaintext->l == strlen(fromdb) && byte_equal(plaintext->s,plaintext->l,fromdb))
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return 1;
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return 0;
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}
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