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[PATCH] xfreopen: new module, from coreutils


From: Jim Meyering
Subject: [PATCH] xfreopen: new module, from coreutils
Date: Thu, 19 Nov 2009 15:57:15 +0100

I am about to use this from diff, so...
BTW, changed license from LGPL in coreutils to GPL here, since
it doesn't make sense to use error-generating code from a library.


>From ba4000b09804294e46373afb2003744612096a20 Mon Sep 17 00:00:00 2001
From: Jim Meyering <address@hidden>
Date: Thu, 19 Nov 2009 15:55:58 +0100
Subject: [PATCH] xfreopen: new module, from coreutils

* modules/xfreopen: New module.
* lib/xfreopen.c: New file.
* lib/xfreopen.h: New file.
* MODULES.html.sh (File stream based Input/Output"): Add it.
---
 ChangeLog        |    8 ++++++++
 MODULES.html.sh  |    1 +
 lib/xfreopen.c   |   42 ++++++++++++++++++++++++++++++++++++++++++
 lib/xfreopen.h   |    2 ++
 modules/xfreopen |   26 ++++++++++++++++++++++++++
 5 files changed, 79 insertions(+), 0 deletions(-)
 create mode 100644 lib/xfreopen.c
 create mode 100644 lib/xfreopen.h
 create mode 100644 modules/xfreopen

diff --git a/ChangeLog b/ChangeLog
index fb73cb4..b177d67 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2009-11-19  Jim Meyering  <address@hidden>
+
+       xfreopen: new module, from coreutils
+       * modules/xfreopen: New module.
+       * lib/xfreopen.c: New file.
+       * lib/xfreopen.h: New file.
+       * MODULES.html.sh (File stream based Input/Output"): Add it.
+
 2009-11-19  Eric Blake  <address@hidden>

        manywarnings: depend on warnings
diff --git a/MODULES.html.sh b/MODULES.html.sh
index cb791b8..7fc55dd 100755
--- a/MODULES.html.sh
+++ b/MODULES.html.sh
@@ -2568,6 +2568,7 @@ func_all_modules ()
   func_module popen-safer
   func_module stdlib-safer
   func_module tmpfile-safer
+  func_module xfreopen
   func_end_table

   element="Users and groups"
diff --git a/lib/xfreopen.c b/lib/xfreopen.c
new file mode 100644
index 0000000..32e68fa
--- /dev/null
+++ b/lib/xfreopen.c
@@ -0,0 +1,42 @@
+/* a wrapper for frepoen
+   Copyright (C) 2008-2009 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+#include "xfreopen.h"
+
+#include <errno.h>
+#include "error.h"
+#include "exitfail.h"
+#include "quote.h"
+#include "stdio--.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+void
+xfreopen (char const *filename, char const *mode, FILE *fp)
+{
+  if (!freopen (filename, mode, fp))
+    {
+      char const *f = (filename ? filename
+                       : (fp == stdin ? _("stdin")
+                          : (fp == stdout ? _("stdout")
+                             : (fp == stderr ? _("stderr")
+                                : _("unknown stream")))));
+      error (exit_failure, errno, _("failed to reopen %s with mode %s"),
+             quote_n (0, f), quote_n (1, mode));
+    }
+}
diff --git a/lib/xfreopen.h b/lib/xfreopen.h
new file mode 100644
index 0000000..2ce49b5
--- /dev/null
+++ b/lib/xfreopen.h
@@ -0,0 +1,2 @@
+#include <stdio.h>
+void xfreopen (char const *filename, char const *mode, FILE *fp);
diff --git a/modules/xfreopen b/modules/xfreopen
new file mode 100644
index 0000000..e41b2a6
--- /dev/null
+++ b/modules/xfreopen
@@ -0,0 +1,26 @@
+Description:
+a wrapper for frepoen
+
+Files:
+lib/xfreopen.c
+lib/xfreopen.h
+
+Depends-on:
+error
+exitfail
+freopen-safer
+quote
+
+configure.ac:
+
+Makefile.am:
+lib_SOURCES += xfreopen.c xfreopen.h
+
+Include:
+"xfreopen.h"
+
+License:
+GPL
+
+Maintainer:
+Jim Meyering
--
1.6.5.3.433.g11067




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