(utime_null): Don't pass 0666 to open; it's not needed and isn't

[gnulib.git] / lib / linebuffer.c

diff --git a/lib/linebuffer.c b/lib/linebuffer.c
index 7f53aed..c1a696a 100644 (file)
--- a/lib/linebuffer.c
+++ b/lib/linebuffer.c
@@ -1,5 +1,5 @@
 /* linebuffer.c -- read arbitrarily long lines
-   Copyright (C) 1986, 1991 Free Software Foundation, Inc.
+   Copyright (C) 1986, 1991, 1998 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
@@ -12,11 +12,15 @@
    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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+   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 Richard Stallman. */
 \f
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
 #include <stdio.h>
 #include "linebuffer.h"
 
@@ -27,8 +31,7 @@ void free ();
 /* Initialize linebuffer LINEBUFFER for use. */
 
 void
-initbuffer (linebuffer)
-     struct linebuffer *linebuffer;
+initbuffer (struct linebuffer *linebuffer)
 {
   linebuffer->length = 0;
   linebuffer->size = 200;
@@ -37,19 +40,18 @@ initbuffer (linebuffer)
 
 /* Read an arbitrarily long line of text from STREAM into LINEBUFFER.
    Remove any newline.  Does not null terminate.
-   Return LINEBUFFER, except at end of file return 0.  */
+   Return zero upon error or upon end of file.
+   Otherwise, return LINEBUFFER.  */
 
 struct linebuffer *
-readline (linebuffer, stream)
-     struct linebuffer *linebuffer;
-     FILE *stream;
+readline (struct linebuffer *linebuffer, FILE *stream)
 {
   int c;
   char *buffer = linebuffer->buffer;
   char *p = linebuffer->buffer;
   char *end = buffer + linebuffer->size; /* Sentinel. */
 
-  if (feof (stream))
+  if (feof (stream) || ferror (stream))
     {
       linebuffer->length = 0;
       return 0;
@@ -83,8 +85,7 @@ readline (linebuffer, stream)
 /* Free linebuffer LINEBUFFER and its data, all allocated with malloc. */
 
 void
-freebuffer (linebuffer)
-     struct linebuffer *linebuffer;
+freebuffer (struct linebuffer *linebuffer)
 {
   free (linebuffer->buffer);
   free (linebuffer);