shithub: sce

Info  •  Files  •  Log

bmap: fix oob from assumed max unit size

detected because it messed up execution depending on the order of
linked objects, crazy

--- a/bmap.c

+++ b/bmap.c

@@ -5,7 +5,7 @@

 #include "fns.h"

 enum{

-	Nmaxsize = 4,

+	Nmaxsize = 4*4,	/* FIXME: seems like a shitty assumption to make */

 	Npad = 1,

 };

@@ -93,6 +93,7 @@

 	int i, j;

 	u64int u, m;

+	memset(row, 0xfe, sizeof row);

 	m = (1 << sz.x - 1) - 1;

 	if(left){

 		ofs = 64 - sz.x - Δsz.x - ofs;

@@ -100,6 +101,7 @@

 	}

 	m = ~m;

 	for(i=0; i<sz.y+Δsz.y; i++, b+=Δb){

+		assert(i < nelem(row));

 		u = b[0];

 		if(ofs > 0){

 			if(left){