From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Wed, 9 May 2007 21:57:23 +0000 (-0000)
Subject: awk: don't segfault on printf(%*s). Close 1337.
X-Git-Tag: 1_6_0~76
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=389f9d52d5520dea157fab474caacf3d8b1bde73;p=oweals%2Fbusybox.git

awk: don't segfault on printf(%*s). Close 1337.
---

diff --git a/editors/awk.c b/editors/awk.c
index bc9e99a6f..2e67f67fb 100644
--- a/editors/awk.c
+++ b/editors/awk.c
@@ -1756,8 +1756,11 @@ static char *awk_printf(node *n)
 		s = f;
 		while (*f && (*f != '%' || *(++f) == '%'))
 			f++;
-		while (*f && !isalpha(*f))
+		while (*f && !isalpha(*f)) {
+			if (*f == '*')
+				syntax_error("%*x formats are not supported");
 			f++;
+		}
 
 		incr = (f - s) + MAXVARFMT;
 		qrealloc(&b, incr + i, &bsize);