shithub: neatroff

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draw: handle invalid line characters

--- a/draw.c

+++ b/draw.c

@@ -41,8 +41,8 @@

 		wb_hmov(wb, l);

 		l = -l;

 	}

-	n = l / w;

-	rem = l % w;

+	n = w ? l / w : 0;

+	rem = w ? l % w : l;

 	/* length less than character width */

 	if (l < w) {

 		n = 1;

@@ -76,8 +76,8 @@

 		wb_vmov(wb, l);

 		l = -l;

 	}

-	n = l / w;

-	rem = l % w;

+	n = w ? l / w : 0;

+	rem = w ? l % w : l;

 	/* length less than character width */

 	if (l < w) {

 		n = 1;