Return -1/EINVAL when the buffer is too small.

[gnulib.git] / lib / getline.c

diff --git a/lib/getline.c b/lib/getline.c
index 8213a2e..896b6bb 100644 (file)
--- a/lib/getline.c
+++ b/lib/getline.c
@@ -1,20 +1,21 @@
 /* getline.c -- Replacement for GNU C library function getline
 
-Copyright (C) 1993, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1993, 1996, 1997, 1998, 2000, 2003 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 2 of the
-License, or (at your option) any later version.
+   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 2, 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.
+   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, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 /* Written by Jan Brittenson, bson@gnu.ai.mit.edu.  */
 
@@ -22,34 +23,36 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 # include <config.h>
 #endif
 
-/* The `getdelim' function is only declared if the following symbol
-   is defined.  */
-#ifndef _GNU_SOURCE
-# define _GNU_SOURCE 1
-#endif
+/* Specification.  */
+#include "getline.h"
 
+#include <stddef.h>
 #include <stdio.h>
+
+/* Get ssize_t.  */
 #include <sys/types.h>
 
 #if defined __GNU_LIBRARY__ && HAVE_GETDELIM
 
-int
-getline (char **lineptr, size_t *n, FILE *stream)
+ssize_t
+getline (char **lineptr, size_t *linesize, FILE *stream)
 {
-  return getdelim (lineptr, n, '\n', stream);
+  return getdelim (lineptr, linesize, '\n', stream);
 }
 
 #else /* ! have getdelim */
 
-int
-getline (char **lineptr, size_t *n, FILE *stream)
+# include "getndelim2.h"
+
+ssize_t
+getline (char **lineptr, size_t *linesize, FILE *stream)
 {
-  return getstr (lineptr, n, stream, '\n', 0, 0);
+  return getndelim2 (lineptr, linesize, (size_t)(-1), stream, '\n', 0, 0);
 }
 
-int
-getdelim (char **lineptr, size_t *n, int delimiter, FILE *stream)
+ssize_t
+getdelim (char **lineptr, size_t *linesize, int delimiter, FILE *stream)
 {
-  return getstr (lineptr, n, stream, delimiter, 0, 0);
+  return getndelim2 (lineptr, linesize, (size_t)(-1), stream, delimiter, 0, 0);
 }
 #endif