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authorUlrich Drepper <drepper@redhat.com>2005-09-04 20:10:35 +0000
committerUlrich Drepper <drepper@redhat.com>2005-09-04 20:10:35 +0000
commit34c5e4a1f1de2e755311855c1b15d1f35a1bd61f (patch)
treecbc269d34a1496450decab9563c1fcd087b98f03 /libio
parentf2cd432663701ce4d346b7b3232ad74e98c90aab (diff)
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* stdio-common/Makefile (tests): Add tst-put-error.
* stdio-common/tst-put-error.c: New file. * libio/fileops.c (_IO_new_file_xsputn): If overflow fails and no more data would have to be written signal error. * libio/oldfileops.c (_IO_old_file_xsputn): Likewise. * libio/fileops.c (_IO_new_file_overflow): Use NULL not 0.
Diffstat (limited to 'libio')
-rw-r--r--libio/fileops.c10
-rw-r--r--libio/oldfileops.c4
2 files changed, 8 insertions, 6 deletions
diff --git a/libio/fileops.c b/libio/fileops.c
index 19151cf188..3ad9b74011 100644
--- a/libio/fileops.c
+++ b/libio/fileops.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1995, 1997-2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1995, 1997-2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Per Bothner <bothner@cygnus.com>.
@@ -826,10 +826,10 @@ _IO_new_file_overflow (f, ch)
return EOF;
}
/* If currently reading or no buffer allocated. */
- if ((f->_flags & _IO_CURRENTLY_PUTTING) == 0 || f->_IO_write_base == 0)
+ if ((f->_flags & _IO_CURRENTLY_PUTTING) == 0 || f->_IO_write_base == NULL)
{
/* Allocate a buffer if needed. */
- if (f->_IO_write_base == 0)
+ if (f->_IO_write_base == NULL)
{
INTUSE(_IO_doallocbuf) (f);
_IO_setg (f, f->_IO_buf_base, f->_IO_buf_base, f->_IO_buf_base);
@@ -1338,7 +1338,9 @@ _IO_new_file_xsputn (f, data, n)
_IO_size_t block_size, do_write;
/* Next flush the (full) buffer. */
if (_IO_OVERFLOW (f, EOF) == EOF)
- return n - to_do;
+ /* If nothing else has to be written we must not signal the
+ caller that everything has been written. */
+ return to_do == 0 ? EOF : n - to_do;
/* Try to maintain alignment: write a whole number of blocks.
dont_write is what gets left over. */
diff --git a/libio/oldfileops.c b/libio/oldfileops.c
index b9efca7aa8..2dd618215b 100644
--- a/libio/oldfileops.c
+++ b/libio/oldfileops.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1995, 1997-2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1995, 1997-2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Per Bothner <bothner@cygnus.com>.
@@ -752,7 +752,7 @@ _IO_old_file_xsputn (f, data, n)
_IO_size_t block_size, do_write;
/* Next flush the (full) buffer. */
if (__overflow (f, EOF) == EOF)
- return n - to_do;
+ return to_do == 0 ? 0 : n - to_do;
/* Try to maintain alignment: write a whole number of blocks.
dont_write is what gets left over. */