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.

3 files changed, 46 insertions, 3 deletions

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"