X-Git-Url: http://de.git.xonotic.org/?a=blobdiff_plain;f=mdfour.c;h=e057a94bde771a84ad1d21331893b406ce5bd344;hb=97118366ca807adfaa9bb45eed6266eb514b41b7;hp=cd0ce05a65c4ebdf16bf1a74396187af9b199a2a;hpb=9e279d8ea4a631713d98132cd1b01338e81f5c0b;p=xonotic%2Fdarkplaces.git

diff --git a/mdfour.c b/mdfour.c
index cd0ce05a..e057a94b 100644
--- a/mdfour.c
+++ b/mdfour.c
@@ -27,6 +27,8 @@
 	$Id$
 */
 
+#include "quakedef.h"
+
 #include <string.h>		/* XoXus: needed for memset call */
 #include "mdfour.h"
 
@@ -104,7 +106,7 @@ static void mdfour64(uint32 *M)
 	m->A = A; m->B = B; m->C = C; m->D = D;
 }
 
-static void copy64(uint32 *M, unsigned char *in)
+static void copy64(uint32 *M, const unsigned char *in)
 {
 	int i;
 
@@ -131,7 +133,7 @@ void mdfour_begin(struct mdfour *md)
 }
 
 
-static void mdfour_tail(unsigned char *in, int n)
+static void mdfour_tail(const unsigned char *in, int n)
 {
 	unsigned char buf[128];
 	uint32 M[16];
@@ -158,11 +160,14 @@ static void mdfour_tail(unsigned char *in, int n)
 	}
 }
 
-void mdfour_update(struct mdfour *md, unsigned char *in, int n)
+void mdfour_update(struct mdfour *md, const unsigned char *in, int n)
 {
 	uint32 M[16];
 
-	if (n == 0) mdfour_tail(in, n);
+// start of edit by Forest 'LordHavoc' Hale
+// commented out to prevent crashing when length is 0
+//	if (n == 0) mdfour_tail(in, n);
+// end of edit by Forest 'LordHavoc' Hale
 
 	m = md;
 
@@ -189,7 +194,7 @@ void mdfour_result(struct mdfour *md, unsigned char *out)
 }
 
 
-void mdfour(unsigned char *out, unsigned char *in, int n)
+void mdfour(unsigned char *out, const unsigned char *in, int n)
 {
 	struct mdfour md;
 	mdfour_begin(&md);