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authorUlrich Drepper <drepper@redhat.com>1998-07-05 11:57:59 +0000
committerUlrich Drepper <drepper@redhat.com>1998-07-05 11:57:59 +0000
commit77ccaba1fa58f871e797ced648c2966842e477db (patch)
treefec432e9338d6956a0a9b6e5a03d330ff580bb06 /libio/iofgets_u.c
parenteb27c43f02ec7890c19f424de458df903745db5d (diff)
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Update.
1998-07-05 11:54  Ulrich Drepper  <drepper@cygnus.com>

	* Versions: Add pthread_attr_init ti GLIBC_2.1 version in libc.
Diffstat (limited to 'libio/iofgets_u.c')
-rw-r--r--libio/iofgets_u.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/libio/iofgets_u.c b/libio/iofgets_u.c
new file mode 100644
index 0000000000..1eb98bd542
--- /dev/null
+++ b/libio/iofgets_u.c
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+/* Copyright (C) 1993, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU IO Library.
+
+   This library 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 2, or (at
+   your option) any later version.
+
+   This 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this library; see the file COPYING.  If not, write to
+   the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+   MA 02111-1307, USA.
+
+   As a special exception, if you link this library with files
+   compiled with a GNU compiler to produce an executable, this does
+   not cause the resulting executable to be covered by the GNU General
+   Public License.  This exception does not however invalidate any
+   other reasons why the executable file might be covered by the GNU
+   General Public License.  */
+
+#include "libioP.h"
+#include <stdio.h>
+
+char *
+fgets_unlocked (buf, n, fp)
+     char *buf;
+     int n;
+     _IO_FILE *fp;
+{
+  _IO_size_t count;
+  char *result;
+  int old_error;
+  CHECK_FILE (fp, NULL);
+  if (n <= 0)
+    return NULL;
+  /* This is very tricky since a file descriptor may be in the
+     non-blocking mode. The error flag doesn't mean much in this
+     case. We return an error only when there is a new error. */
+  old_error = fp->_IO_file_flags & _IO_ERR_SEEN;
+  fp->_IO_file_flags &= ~_IO_ERR_SEEN;
+  count = _IO_getline (fp, buf, n - 1, '\n', 1);
+  if (count == 0 || (fp->_IO_file_flags & _IO_ERR_SEEN))
+    result = NULL;
+  else
+    {
+      buf[count] = '\0';
+      result = buf;
+    }
+  fp->_IO_file_flags |= old_error;
+  return result;
+}