From: Jim Meyering <jim@meyering.net>
Date: Tue, 22 Jan 2002 17:50:41 +0000 (+0000)
Subject: (save_stdin): Report proper errno value after
X-Git-Tag: TEXTUTILS-2_0_20~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d283021a71673ff1a13c2954aa2cf781391d99fd;p=thirdparty%2Fcoreutils.git

(save_stdin): Report proper errno value after
fwrite failures.  Do not bother to rewind the temp file, as
it'll be read backwards anyway.
---

diff --git a/src/tac.c b/src/tac.c
index de85794516..6e75aa357a 100644
--- a/src/tac.c
+++ b/src/tac.c
@@ -1,5 +1,5 @@
 /* tac - concatenate and print files in reverse
-   Copyright (C) 1988-1991, 1995-2001 Free Software Foundation, Inc.
+   Copyright (C) 1988-1991, 1995-2002 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
@@ -453,15 +453,13 @@ save_stdin (FILE **g_tmp, char **g_tempfile)
       if (bytes_read < 0)
 	error (EXIT_FAILURE, errno, _("stdin: read error"));
 
-      /* Don't bother checking for failure inside the loop -- check after.  */
-      fwrite (G_buffer, 1, bytes_read, tmp);
+      if (fwrite (G_buffer, 1, bytes_read, tmp) != bytes_read)
+	break;
     }
 
   if (ferror (tmp) || fflush (tmp) == EOF)
     error (EXIT_FAILURE, errno, "%s", tempfile);
 
-  rewind (tmp);
-
   SET_BINARY (fileno (tmp));
   *g_tmp = tmp;
   *g_tempfile = tempfile;