nice/readline.c

   1 /*
   2  * This file is part of the Nice GLib ICE library.
   3  *
   4  * (C) 2006, 2007 Collabora Ltd.
   5  *  Contact: Dafydd Harries
   6  * (C) 2006, 2007 Nokia Corporation. All rights reserved.
   7  *  Contact: Kai Vehmanen
   8  *
   9  * The contents of this file are subject to the Mozilla Public License Version
  10  * 1.1 (the "License"); you may not use this file except in compliance with
  11  * the License. You may obtain a copy of the License at
  12  * http://www.mozilla.org/MPL/
  13  *
  14  * Software distributed under the License is distributed on an "AS IS" basis,
  15  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  16  * for the specific language governing rights and limitations under the
  17  * License.
  18  *
  19  * The Original Code is the Nice GLib ICE library.
  20  *
  21  * The Initial Developers of the Original Code are Collabora Ltd and Nokia
  22  * Corporation. All Rights Reserved.
  23  *
  24  * Contributors:
  25  *   Dafydd Harries, Collabora Ltd.
  26  *
  27  * Alternatively, the contents of this file may be used under the terms of the
  28  * the GNU Lesser General Public License Version 2.1 (the "LGPL"), in which
  29  * case the provisions of LGPL are applicable instead of those above. If you
  30  * wish to allow use of your version of this file only under the terms of the
  31  * LGPL and not to allow others to use your version of this file under the
  32  * MPL, indicate your decision by deleting the provisions above and replace
  33  * them with the notice and other provisions required by the LGPL. If you do
  34  * not delete the provisions above, a recipient may use your version of this
  35  * file under either the MPL or the LGPL.
  36  */
  37 #ifdef HAVE_CONFIG_H
  38 # include "config.h"
  39 #endif
  40
  41 #include <unistd.h>
  42
  43 #include <glib.h>
  44
  45 #include "readline.h"
  46
  47 gchar *
  48 readline (guint fileno)
  49 {
  50   gchar buf[1024];
  51   guint i;
  52
  53   for (i = 0; i < sizeof (buf); i++)
  54     {
  55       gint ret;
  56
  57       ret = read (fileno, buf + i, 1);
  58
  59       if (ret == -1)
  60         break;
  61
  62       if (ret == 0 && i == 0)
  63         {
  64           /* EOF on first read */
  65           break;
  66         }
  67       else if (ret == 0 || buf[i] == '\n')
  68         {
  69           buf[i] = '\0';
  70           return g_strdup (buf);
  71         }
  72     }
  73
  74   return NULL;
  75 }
  76