raop: Add a MD5 hashing fuction

MD5 hashing will be needed during the authentication process.

Original patch by Martin Blanchard. Patch splitted by
Hajime Fujita <crisp.fujita@nifty.com>.
This commit is contained in:
Martin Blanchard 2016-11-06 12:54:05 -06:00 committed by Tanu Kaskinen
parent bac8a2ba66
commit a33c04c0cc
2 changed files with 29 additions and 0 deletions

View file

@ -30,12 +30,21 @@
#include <stdlib.h>
#include <string.h>
#include <openssl/err.h>
#include <openssl/md5.h>
#include <pulse/xmalloc.h>
#include <pulsecore/macro.h>
#include "raop_util.h"
#ifndef MD5_DIGEST_LENGTH
#define MD5_DIGEST_LENGTH 16
#endif
#define MD5_HASH_LENGTH (2*MD5_DIGEST_LENGTH)
#define BASE64_DECODE_ERROR 0xffffffff
static const char base64_chars[] =
@ -141,3 +150,21 @@ int pa_raop_base64_decode(const char *str, void *data) {
return q - (unsigned char *) data;
}
int pa_raop_md5_hash(const char *data, int len, char **str) {
unsigned char d[MD5_DIGEST_LENGTH];
char *s = NULL;
int i;
pa_assert(data);
pa_assert(str);
MD5((unsigned char*) data, len, d);
s = pa_xnew(char, MD5_HASH_LENGTH);
for (i = 0; i < MD5_DIGEST_LENGTH; i++)
sprintf(&s[2*i], "%02x", (unsigned int) d[i]);
*str = s;
s[MD5_HASH_LENGTH] = 0;
return strlen(s);
}

View file

@ -30,4 +30,6 @@
int pa_raop_base64_encode(const void *data, int len, char **str);
int pa_raop_base64_decode(const char *str, void *data);
int pa_raop_md5_hash(const char *data, int len, char **str);
#endif