Corrigindo erro no gerenciamento de memoria

perry.werneck@gmail.com
1 parent 75e79e39
Showing 1 changed file with 8 additions and 3 deletions Show diff stats
selection.c
@@ -428,24 +428,29 @@ LIB3270_EXPORT char * lib3270_get_text(H3270 *h, int offset, int len)
 	buffer	= malloc(len+1);
 	ptr		= buffer;
  
-	while(len-- > 0)
+	trace("len=%d buffer=%p",len,buffer);
+
+	while(len > 0)
 	{
 		if(h->text[offset].attr & LIB3270_ATTR_CG)
 			*ptr = ' ';
 		else if(h->text[offset].chr)
 			*ptr = h->text[offset].chr;
 		else
-			*ptr = " ";
+			*ptr = ' ';
  
 		ptr++;
 		offset++;
+		len--;
  
-		if((offset%h->cols) == 0)
+		if((offset%h->cols) == 0 && len > 0)
 		{
 			*(ptr++) = '\n';
 			len--;
 		}
 	}
+	trace("len=%d buffer=%p pos=%d",len,buffer,ptr-buffer);
+
 	*ptr = 0;
  
 	return buffer;
...	...	@@ -428,24 +428,29 @@ LIB3270_EXPORT char * lib3270_get_text(H3270 *h, int offset, int len)
428	428	buffer = malloc(len+1);
429	429	ptr = buffer;
430	430
431		- while(len-- > 0)
	431	+ trace("len=%d buffer=%p",len,buffer);
	432	+
	433	+ while(len > 0)
432	434	{
433	435	if(h->text[offset].attr & LIB3270_ATTR_CG)
434	436	*ptr = ' ';
435	437	else if(h->text[offset].chr)
436	438	*ptr = h->text[offset].chr;
437	439	else
438		- *ptr = " ";
	440	+ *ptr = ' ';
439	441
440	442	ptr++;
441	443	offset++;
	444	+ len--;
442	445
443		- if((offset%h->cols) == 0)
	446	+ if((offset%h->cols) == 0 && len > 0)
444	447	{
445	448	*(ptr++) = '\n';
446	449	len--;
447	450	}
448	451	}
	452	+ trace("len=%d buffer=%p pos=%d",len,buffer,ptr-buffer);
	453	+
449	454	*ptr = 0;
450	455
451	456	return buffer;
...	...