From: Glenn Burkhardt <glenn@aoi.ultranet.com>
Date: Tue, 30 Sep 2003 14:36:04 +0000 (+0000)
Subject: [bug #4297] The strlen mh-format function can crash if 'str' is null.
X-Git-Url: https://diplodocus.org/git/nmh/commitdiff_plain/0e02bd46c1b4931073f3e865bbad4deb15691fd7?ds=sidebyside

[bug #4297] The strlen mh-format function can crash if 'str' is null.
---

diff --git a/sbr/fmt_scan.c b/sbr/fmt_scan.c
index 0a2397ba..4f79bf6a 100644
--- a/sbr/fmt_scan.c
+++ b/sbr/fmt_scan.c
@@ -511,7 +511,10 @@ fmt_scan (struct format *format, char *scanl, int width, int *dat)
 	    value = dat[fmt->f_value];
 	    break;
 	case FT_LV_STRLEN:
-	    value = strlen(str);
+	    if (str != NULL)
+		    value = strlen(str);
+	    else
+		    value = 0;
 	    break;
 	case FT_LV_CHAR_LEFT:
 	    value = width - (cp - scanl);