X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=hmac.c;h=e740632df4884cd0789cbfbc80e04962eff00a5e;hp=bd97ba43fd2c7321d6d5229e80c98c4c0a27b01e;hb=ce130c7da8ce2c1cdf5e19d1823276c5ca5e83b5;hpb=01b29650876b1f991ac2e8fe0c0a54b73c43204e

diff --git a/hmac.c b/hmac.c
index bd97ba43..e740632d 100644
--- a/hmac.c
+++ b/hmac.c
@@ -4,14 +4,14 @@
 qboolean hmac(
 	hashfunc_t hfunc, int hlen, int hblock,
 	unsigned char *out,
-	unsigned char *in, int n,
-	unsigned char *key, int k
+	const unsigned char *in, int n,
+	const unsigned char *key, int k
 )
 {
-	static unsigned char hashbuf[32];
-	static unsigned char k_xor_ipad[128];
-	static unsigned char k_xor_opad[128];
-	static unsigned char catbuf[4096];
+	unsigned char hashbuf[32];
+	unsigned char k_xor_ipad[128];
+	unsigned char k_xor_opad[128];
+	unsigned char *catbuf;
 	int i;
 
 	if(sizeof(hashbuf) < (size_t) hlen)
@@ -20,10 +20,8 @@ qboolean hmac(
 		return false;
 	if(sizeof(k_xor_ipad) < (size_t) hlen)
 		return false;
-	if(sizeof(catbuf) < (size_t) hblock + (size_t) hlen)
-		return false;
-	if(sizeof(catbuf) < (size_t) hblock + (size_t) n)
-		return false;
+
+	catbuf = (unsigned char *)Mem_Alloc(tempmempool, (size_t) hblock + max((size_t) hlen, (size_t) n));
 
 	if(k > hblock)
 	{
@@ -56,5 +54,8 @@ qboolean hmac(
 	memcpy(catbuf, k_xor_opad, hblock);
 	memcpy(catbuf + hblock, hashbuf, hlen);
 	hfunc(out, catbuf, hblock + hlen);
+
+	Mem_Free(catbuf);
+
 	return true;
 }