From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 8 May 2007 07:27:20 +0000 (-0700)
Subject: fix sscanf %n match at end of input string
X-Git-Tag: v2.6.22-rc1~715
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c6b40d16d1cfa1a01158049bb887a9bbe48ef7ba;p=pandora-kernel.git

fix sscanf %n match at end of input string

I was playing with some code that sometimes got a string where a %n
match should have been done where the input string ended, for example
like this:

  sscanf("abc123", "abc%d%n", &a, &n);  /* doesn't work */
  sscanf("abc123a", "abc%d%n", &a, &n); /* works */

However, the scanf function in the kernel doesn't convert the %n in that
case because it has already matched the complete input after %d and just
completely stops matching then. This patch fixes that.

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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