From: Jakub Jelinek <jakub@redhat.com>
To: Ulrich Drepper <drepper@redhat.com>
Cc: Glibc hackers <libc-hacker@sources.redhat.com>
Subject: [PATCH] Fix *scanf
Date: Mon, 19 Apr 2004 22:19:00 -0000 [thread overview]
Message-ID: <20040419200821.GT514@sunsite.ms.mff.cuni.cz> (raw)
Hi!
I'm not 100% sure this is correct, but certainly this patch
makes tst-sscanf behave like on Solaris.
The second hunk makes sure "x%%y" doesn't match "x %y"
and the first causes input_error if EOF is seen while skipping
whitespace.
2004-04-20 Jakub Jelinek <jakub@redhat.com>
* stdio-common/vfscanf.c (_IO_vfscanf): When skipping whitespace,
do input_error () instead of conv_error () and don't look at errno.
Don't eat any whitespace before %% if skip_space == 0.
* stdio-common/tst-sscanf.c (int_tests): New array.
(main): Run int_tests.
--- libc/stdio-common/vfscanf.c.jj 2004-04-19 23:31:19.613093185 +0200
+++ libc/stdio-common/vfscanf.c 2004-04-19 23:56:25.808163418 +0200
@@ -396,8 +396,8 @@ _IO_vfscanf (s, format, argptr, errp)
if (skip_space)
{
while (ISSPACE (c))
- if (inchar () == EOF && errno == EINTR)
- conv_error ();
+ if (inchar () == EOF)
+ input_error ();
skip_space = 0;
}
@@ -543,7 +543,8 @@ _IO_vfscanf (s, format, argptr, errp)
/* Find the conversion specifier. */
fc = *f++;
if (skip_space || (fc != L_('[') && fc != L_('c')
- && fc != L_('C') && fc != L_('n')))
+ && fc != L_('C') && fc != L_('n')
+ && fc != L_('%')))
{
/* Eat whitespace. */
int save_errno = errno;
--- libc/stdio-common/tst-sscanf.c.jj 2002-10-11 12:55:27.000000000 +0200
+++ libc/stdio-common/tst-sscanf.c 2004-04-19 23:58:39.702167869 +0200
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.
@@ -59,6 +59,39 @@ const long int val_long[] =
-12345678, 987654321, 123456789, 987654321, 123456789, 987654321
};
+struct int_test
+{
+ const char *str;
+ const char *fmt;
+ int retval;
+} int_tests[] =
+{
+ { "foo\n", "foo\nbar", -1 },
+ { "foo\n", "foo bar", -1 },
+ { "foo\n", "foo %d", -1 },
+ { "foo\n", "foo\n%d", -1 },
+ { "foon", "foonbar", -1 },
+ { "foon", "foon%d", -1 },
+ { "foo ", "foo bar", -1 },
+ { "foo ", "foo %d", -1 },
+ { "foo\t", "foo\tbar", -1 },
+ { "foo\t", "foo bar", -1 },
+ { "foo\t", "foo %d", -1 },
+ { "foo\t", "foo\t%d", -1 },
+ { "foo \t %bar1", "foo%%bar%d", 0 },
+ { "foo", "foo", 0 },
+ { "foon", "foo bar", 0 },
+ { "foon", "foo %d", 0 },
+ { "foo ", "fooxbar", 0 },
+ { "foo ", "foox%d", 0 },
+ { "foo bar", "foon", 0 },
+ { "foo bar", "foo bar", 0 },
+ { "foo bar", "foo %d", 0 },
+ { "foo bar", "foon%d", 0 },
+ { "foo ", "foo %n", 0 },
+ { "foo%bar1", "foo%%bar%d", 1 }
+};
+
int
main (void)
{
@@ -119,5 +152,18 @@ main (void)
break;
}
+ for (i = 0; i < sizeof (int_tests) / sizeof (int_tests[0]); ++i)
+ {
+ int dummy, ret;
+
+ if ((ret = sscanf (int_tests[i].str, int_tests[i].fmt,
+ &dummy)) != int_tests[i].retval)
+ {
+ printf ("int_tests[%d] returned %d != %d\n",
+ i, ret, int_tests[i].retval);
+ result = 1;
+ }
+ }
+
return result;
}
Jakub
next reply other threads:[~2004-04-19 22:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-19 22:19 Jakub Jelinek [this message]
2004-04-20 4:19 ` Ulrich Drepper
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