From 6ecec3b616aeaf121c68c1053cd17fdcf0cdb5a2 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Mon, 14 Jan 2013 17:32:20 +0100 Subject: Don't accept exp char without preceding digits in scanf float parsing --- stdio-common/bug26.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 stdio-common/bug26.c (limited to 'stdio-common/bug26.c') diff --git a/stdio-common/bug26.c b/stdio-common/bug26.c new file mode 100644 index 0000000..a4c6bce --- /dev/null +++ b/stdio-common/bug26.c @@ -0,0 +1,37 @@ +/* Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include + +int +main (void) +{ + FILE *f; + int lost = 0; + int c; + double d; + char s[] = "+.e"; + + f = fmemopen (s, strlen (s), "r"); + /* This should fail to parse a float and leave 'e' in the input. */ + lost |= (fscanf (f, "%f", &d) != 0); + c = fgetc (f); + lost |= c != 'e'; + puts (lost ? "Test FAILED!" : "Test succeeded."); + return lost; +} -- cgit v1.1