Module Name:    src
Committed By:   christos
Date:           Sun May 19 17:07:05 UTC 2013

Modified Files:
        src/lib/libc/stdio: stdio.c

Log Message:
from kre: Don't fail if we are seeking on a pipe, clear the append bit
since we always append.


To generate a diff of this commit:
cvs rdiff -u -r1.21 -r1.22 src/lib/libc/stdio/stdio.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/lib/libc/stdio/stdio.c
diff -u src/lib/libc/stdio/stdio.c:1.21 src/lib/libc/stdio/stdio.c:1.22
--- src/lib/libc/stdio/stdio.c:1.21	Tue Mar 27 11:05:42 2012
+++ src/lib/libc/stdio/stdio.c	Sun May 19 13:07:04 2013
@@ -1,4 +1,4 @@
-/*	$NetBSD: stdio.c,v 1.21 2012/03/27 15:05:42 christos Exp $	*/
+/*	$NetBSD: stdio.c,v 1.22 2013/05/19 17:07:04 christos Exp $	*/
 
 /*-
  * Copyright (c) 1990, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)stdio.c	8.1 (Berkeley) 6/4/93";
 #else
-__RCSID("$NetBSD: stdio.c,v 1.21 2012/03/27 15:05:42 christos Exp $");
+__RCSID("$NetBSD: stdio.c,v 1.22 2013/05/19 17:07:04 christos Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -86,8 +86,12 @@ __swrite(void *cookie, const void *buf, 
 	_DIAGASSERT(buf != NULL);
 
 	if (fp->_flags & __SAPP)
-		if (lseek(__sfileno(fp), (off_t)0, SEEK_END) == (off_t)-1)
-			return -1;
+		if (lseek(__sfileno(fp), (off_t)0, SEEK_END) == (off_t)-1) {
+			if (errno == ESPIPE)            /* if unseekable, OK, */
+				fp->_flags &= ~__SAPP;  /* all writes append. */
+			else
+				return -1;
+		}
 	fp->_flags &= ~__SOFF;	/* in case FAPPEND mode is set */
 	return write(__sfileno(fp), buf, n);
 }

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