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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>.
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2 changed files with 29 additions and 0 deletions
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@ -30,12 +30,21 @@
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#include <stdlib.h>
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#include <string.h>
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#include <openssl/err.h>
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#include <openssl/md5.h>
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#include <pulse/xmalloc.h>
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#include <pulsecore/macro.h>
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#include "raop_util.h"
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#ifndef MD5_DIGEST_LENGTH
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#define MD5_DIGEST_LENGTH 16
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#endif
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#define MD5_HASH_LENGTH (2*MD5_DIGEST_LENGTH)
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#define BASE64_DECODE_ERROR 0xffffffff
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static const char base64_chars[] =
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@ -141,3 +150,21 @@ int pa_raop_base64_decode(const char *str, void *data) {
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return q - (unsigned char *) data;
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}
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int pa_raop_md5_hash(const char *data, int len, char **str) {
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unsigned char d[MD5_DIGEST_LENGTH];
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char *s = NULL;
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int i;
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pa_assert(data);
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pa_assert(str);
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MD5((unsigned char*) data, len, d);
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s = pa_xnew(char, MD5_HASH_LENGTH);
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for (i = 0; i < MD5_DIGEST_LENGTH; i++)
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sprintf(&s[2*i], "%02x", (unsigned int) d[i]);
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*str = s;
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s[MD5_HASH_LENGTH] = 0;
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return strlen(s);
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}
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@ -30,4 +30,6 @@
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int pa_raop_base64_encode(const void *data, int len, char **str);
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int pa_raop_base64_decode(const char *str, void *data);
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int pa_raop_md5_hash(const char *data, int len, char **str);
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#endif
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