Fix setinfo.

[xonotic/darkplaces.git] / hmac.c

diff --git a/hmac.c b/hmac.c
index bd97ba43fd2c7321d6d5229e80c98c4c0a27b01e..e740632df4884cd0789cbfbc80e04962eff00a5e 100644 (file)
--- 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;
 }