gentoo-overlay/dev-util/bdelta/files/bdelta-0.2.3-fix-stack-smash.patch

commit 817cc738815542a1435d98c557954fad91fc9451
Author: jjw <jjw@0b3c7260-62b7-4bd3-8502-661595b7e89c>
Date:   Wed Dec 7 15:53:20 2011 +0000

    Use heap allocation to prevent the stack from overflowing on large diffs.
    
    git-svn-id: svn://deltup.org/bdelta@41 0b3c7260-62b7-4bd3-8502-661595b7e89c

Upstream: yes
Reported-by: Artem S. Tashkinov
Gentoo-bug: https://bugs.gentoo.org/show_bug.cgi?id=338327

diff --git a/trunk/src/bdelta.cpp b/trunk/src/bdelta.cpp
index 4eaaec7..8460451 100644
--- a/trunk/src/bdelta.cpp
+++ b/trunk/src/bdelta.cpp
@@ -45,9 +45,9 @@ int main(int argc, char **argv) {
 	for (int i = 512; i >= 16; i /= 2)
 		nummatches = bdelta_pass(b, i);
 
-	STACK_ALLOC(copyloc1, unsigned, nummatches + 1);
-	STACK_ALLOC(copyloc2, unsigned, nummatches + 1);
-	STACK_ALLOC(copynum, unsigned, nummatches + 1);
+	unsigned * copyloc1 = new unsigned[nummatches + 1];
+	unsigned * copyloc2 = new unsigned[nummatches + 1];
+	unsigned *  copynum = new unsigned[nummatches + 1];
 
 	FILE *fout = fopen(argv[3], "wb");
 	if (!fout) {
@@ -114,4 +114,10 @@ int main(int argc, char **argv) {
 
 	fclose(f1);
 	fclose(f2);
+
+	delete [] copynum;
+	delete [] copyloc2;
+	delete [] copyloc1;
+
+	return 0;
 }
diff --git a/trunk/src/bpatch.cpp b/trunk/src/bpatch.cpp
index 0da02a8..8d6706b 100644
--- a/trunk/src/bpatch.cpp
+++ b/trunk/src/bpatch.cpp
@@ -67,9 +67,9 @@ int main(int argc, char **argv) {
 
 	unsigned nummatches = read_dword(patchfile);
 
-	STACK_ALLOC(copyloc1, unsigned, nummatches + 1);
-	STACK_ALLOC(copyloc2, unsigned, nummatches + 1);
-	STACK_ALLOC(copynum, unsigned, nummatches + 1);
+	unsigned * copyloc1 = new unsigned[nummatches + 1];
+	unsigned * copyloc2 = new unsigned[nummatches + 1];
+	unsigned *  copynum = new unsigned[nummatches + 1];
 
 	for (unsigned i = 0; i < nummatches; ++i) {
 		copyloc1[i] = read_dword(patchfile);
@@ -100,5 +100,10 @@ int main(int argc, char **argv) {
 			return -1;
 		}
 	}
+
+	delete [] copynum;
+	delete [] copyloc2;
+	delete [] copyloc1;
+
 	return 0;  
 }