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Re: [PATCH v4][BZ #12685] Allow arbitrary number of modes in fopen.


On Wed, May 15, 2013 at 04:47:31PM -0400, Carlos O'Donell wrote:
> 
> Please use test-skeleton.c for your test.
> 
Here is v4.

	* libio/fileops.c (_IO_new_file_fopen): Allow arbitrary number of modes.
	* libio/iofdopen.c (_IO_new_fdopen): Likewise.                          
	* libio/test-fopen-bz12685.c: New file.
	* libio/Makefile (tests): Updated.


---
 libio/Makefile             |    2 +-
 libio/fileops.c            |    6 ++----
 libio/iofdopen.c           |    6 ++----
 libio/test-fopen-bz12685.c |   43 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 48 insertions(+), 9 deletions(-)
 create mode 100644 libio/test-fopen-bz12685.c

diff --git a/libio/Makefile b/libio/Makefile
index e15cd40..8892305 100644
--- a/libio/Makefile
+++ b/libio/Makefile
@@ -54,7 +54,7 @@ tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc   \
 	tst-mmap-setvbuf bug-ungetwc1 bug-ungetwc2 tst-atime tst-eof          \
 	tst-freopen bug-rewind bug-rewind2 bug-ungetc bug-fseek \
 	tst-mmap-eofsync tst-mmap-fflushsync bug-mmap-fflush \
-	tst-mmap2-eofsync tst-mmap-offend bug-fopena+ bug-wfflush \
+	tst-mmap2-eofsync tst-mmap-offend test-fopen-bz12685 bug-fopena+ bug-wfflush \
 	bug-ungetc2 bug-ftell bug-ungetc3 bug-ungetc4 tst-fopenloc2 \
 	tst-memstream1 tst-memstream2 \
 	tst-wmemstream1 tst-wmemstream2 \
diff --git a/libio/fileops.c b/libio/fileops.c
index 61b61b3..78a269a 100644
--- a/libio/fileops.c
+++ b/libio/fileops.c
@@ -286,12 +286,10 @@ _IO_new_file_fopen (fp, filename, mode, is32not64)
 #ifdef _LIBC
   last_recognized = mode;
 #endif
-  for (i = 1; i < 7; ++i)
+  while (*++mode != '\0' && *mode != ',')
     {
-      switch (*++mode)
+      switch (*mode)
 	{
-	case '\0':
-	  break;
 	case '+':
 	  omode = O_RDWR;
 	  read_write &= _IO_IS_APPENDING;
diff --git a/libio/iofdopen.c b/libio/iofdopen.c
index a65a5a6..10db2e0 100644
--- a/libio/iofdopen.c
+++ b/libio/iofdopen.c
@@ -75,12 +75,10 @@ _IO_new_fdopen (fd, mode)
       MAYBE_SET_EINVAL;
       return NULL;
   }
-  for (i = 1; i < 5; ++i)
+  while (*++mode != '\0' && *mode != ',')
     {
-      switch (*++mode)
+      switch (*mode)
 	{
-	case '\0':
-	  break;
 	case '+':
 	  read_write &= _IO_IS_APPENDING;
 	  break;
diff --git a/libio/test-fopen-bz12685.c b/libio/test-fopen-bz12685.c
new file mode 100644
index 0000000..510c1fb
--- /dev/null
+++ b/libio/test-fopen-bz12685.c
@@ -0,0 +1,43 @@
+/* Test for fopen and fdopen modes, see bug 12685.
+   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/>.  */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+int
+do_test (int argc, char *argv)
+{
+  int i;
+  FILE *stream, *stream2;
+
+  /* Test if fopen mode e that sets FD_CLOEXEC is recognized.  */
+  stream = fopen ("/dev/null", "rccccccccccccccccccccce");
+
+  if ((fcntl (fileno (stream), F_GETFD) & FD_CLOEXEC) == 0)
+    {
+		  printf("no FD_CLOEXEC on fopen\n");
+      return 1;
+    }
+	/* In fdopen e flag is ignored.  */
+
+  return 0;
+}
+
+#include "../test-skeleton.c"
-- 
1.7.4.4


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