From: erg <devnull@localhost>
Date: Thu, 21 Apr 2005 01:39:14 +0000 (+0000)
Subject: Fix bug in sscanf - sometimes failed when couldn't scan complete format
X-Git-Tag: LAST_LIBGRAPH~32^2~7642
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b4c5d255c032478f19069adc8db5186b64aba888;p=graphviz

Fix bug in sscanf - sometimes failed when couldn't scan complete format
spec.
---

diff --git a/lib/expr/exeval.c b/lib/expr/exeval.c
index 7afc360c9..0b09ea02d 100644
--- a/lib/expr/exeval.c
+++ b/lib/expr/exeval.c
@@ -472,7 +472,7 @@ static int scan(Expr_t * ex, Exnode_t * expr, void *env, Sfio_t * sp)
     n = sp ? sfscanf(sp, "%!", &fmt) : sfsscanf(v.string, "%!", &fmt);
     if (fmt.tmp)
 	sfstrclose(fmt.tmp);
-    if (fmt.actuals)
+    if (fmt.actuals && !*fmt.fmt.form)
 	exerror("scanf: %s: too many arguments",
 		fmt.actuals->data.operand.left->data.variable.symbol->
 		name);