Fix another crash bug with bogus data (Issue #431)

michaelrsweet · michaelrsweet · commit 85fa76d77ed6 · 2021-05-17T09:10:37.000-04:00
diff --git a/CHANGES.md b/CHANGES.md
@@ -8,7 +8,7 @@
 - Fixed a crash bug with malformed URIs (Issue #418)
 - Fixed a crash bug with malformed GIF files (Issue #423)
 - Fixed a crash bug with empty titles (Issue #425)
-- Fixed a crash bug with bogus text (Issue #426)
+- Fixed a crash bug with bogus text (Issue #426, Issue #431)
 - Fixed some issues reported by Coverity.
 - Removed the bundled libjpeg, libpng, and zlib.
 
diff --git a/htmldoc/ps-pdf.cxx b/htmldoc/ps-pdf.cxx
@@ -5010,7 +5010,7 @@ parse_paragraph(tree_t *t,	/* I - Tree to parse */
 	{
 	  break;
 	}
-	else if (prev->markup == MARKUP_NONE)
+	else if (prev->markup == MARKUP_NONE && *(prev->data))
 	{
 	  int	ch = prev->data[strlen((char *)prev->data) - 1];
 

Original file line number	Diff line number	Diff line change
`@@ -5010,7 +5010,7 @@ parse_paragraph(tree_t t, / I - Tree to parse */`
`5010`	`5010`	`{`
`5011`	`5011`	`break;`
`5012`	`5012`	`}`
`5013`		`- else if (prev->markup == MARKUP_NONE)`
	`5013`	`+ else if (prev->markup == MARKUP_NONE && *(prev->data))`
`5014`	`5014`	`{`
`5015`	`5015`	`int ch = prev->data[strlen((char *)prev->data) - 1];`
`5016`	`5016`