Consistently use ISSPACE to check for whitespace

Resolves #14888.

This only really manifests itself when there are no spaces between
format specifiers, which is not allowed by POSIX, but is allowed by
the glibc implementation.

5 files changed, 58 insertions, 7 deletions

diff --git a/ChangeLog b/ChangeLog
index 9a54ec7..164026b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2013-04-23  Siddhesh Poyarekar  <siddhesh@redhat.com>
+
+	[BZ #14888]
+	* time/Makefile (tests): Add tst-strptime-whitespace.
+	* time/strptime_l.c (get_number): Use ISSPACE.
+	(__strptime_internal): Likewise.
+	* time/tst-strptime-whitespace.c: New test case.
+
 2013-04-23  Andreas Schwab  <schwab@linux-m68k.org>
 
 	* nss/nss_files/files-init.c (TF): Don't initialize flexible array
diff --git a/NEWS b/NEWS
index e2d71be..a1aeb42 100644
--- a/NEWS
+++ b/NEWS
@@ -11,10 +11,10 @@ Version 2.18
 
   10060, 10062, 10357, 11120, 11561, 12723, 13550, 13889, 13951, 13988,
   14142, 14176, 14200, 14293, 14317, 14327, 14478, 14496, 14686, 14812,
-  14920, 14964, 14981, 14982, 14985, 14994, 14996, 15003, 15006, 15020,
-  15023, 15036, 15054, 15055, 15062, 15078, 15160, 15214, 15232, 15234,
-  15283, 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335,
-  15336, 15337, 15342, 15346, 15361.
+  14888, 14920, 14964, 14981, 14982, 14985, 14994, 14996, 15003, 15006,
+  15020, 15023, 15036, 15054, 15055, 15062, 15078, 15160, 15214, 15232,
+  15234, 15283, 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330,
+  15335, 15336, 15337, 15342, 15346, 15361.
 
 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
   #15078).
diff --git a/time/Makefile b/time/Makefile
index a230268..7f4a7fc 100644
--- a/time/Makefile
+++ b/time/Makefile
@@ -35,7 +35,7 @@ aux :=	    era alt_digit lc-time-cleanup
 tests	:= test_time clocktest tst-posixtz tst-strptime tst_wcsftime \
 	   tst-getdate tst-mktime tst-mktime2 tst-ftime_l tst-strftime \
 	   tst-mktime3 tst-strptime2 bug-asctime bug-asctime_r bug-mktime1 \
-	   tst-strptime3 bug-getdate1
+	   tst-strptime3 bug-getdate1 tst-strptime-whitespace
 
 include ../Rules
 
diff --git a/time/strptime_l.c b/time/strptime_l.c
index 89daffa..1f2e8b6 100644
--- a/time/strptime_l.c
+++ b/time/strptime_l.c
@@ -72,7 +72,7 @@ localtime_r (t, tp)
   do {									      \
     int __n = n;							      \
     val = 0;								      \
-    while (*rp == ' ')							      \
+    while (ISSPACE (*rp))						      \
       ++rp;								      \
     if (*rp < '0' || *rp > '9')						      \
       return NULL;							      \
@@ -752,7 +752,7 @@ __strptime_internal (rp, fmt, tmp, statep LOCALE_PARAM)
 	     also specified.  */
 	  {
 	    val = 0;
-	    while (*rp == ' ')
+	    while (ISSPACE (*rp))
 	      ++rp;
 	    if (*rp != '+' && *rp != '-')
 	      return NULL;
diff --git a/time/tst-strptime-whitespace.c b/time/tst-strptime-whitespace.c
new file mode 100644
index 0000000..d2ceca3
--- /dev/null
+++ b/time/tst-strptime-whitespace.c
@@ -0,0 +1,43 @@
+/* Verify that strptime accepts arbitrary whitespace between tokens.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#define _XOPEN_SOURCE
+#include <time.h>
+#include <stdio.h>
+#include <string.h>
+
+int
+do_test (void)
+{
+  struct tm t;
+  const char *in = "Tuesday \t 22 \t July\t1942";
+
+  char *r = strptime (in, "%A%d %b%Y", &t);
+
+  if (r == NULL || r != in + strlen (in))
+    {
+      printf ("strptime failed\n");
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"