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[BZ #1078]

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2005-09-27  Ulrich Drepper  <drepper@redhat.com>
	[BZ #1078]
	* libio/fileops.c (_IO_new_file_xsputn): Determine amount of
	available space in non-line-buffered buffer correctly.
	* libio/oldfileops.c (_IO_old_file_xsputn): Likewise.
	* stdio-common/Makefile (tests): Add tst-fwrite.
	* stdio-common/tst-fwrite.c: New file.
This commit is contained in:
Ulrich Drepper
2005-09-27 19:40:49 +00:00
parent 7dac9f3d90
commit cae6ebb2c9
5 changed files with 89 additions and 5 deletions
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6
libio/fileops.c
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@ -1281,7 +1281,7 @@ _IO_new_file_xsputn (f, data, n)
register const char *s = (const char *) data;
_IO_size_t to_do = n;
int must_flush = 0;
_IO_size_t count;
_IO_size_t count = 0;
if (n <= 0)
return 0;
@ -1290,7 +1290,6 @@ _IO_new_file_xsputn (f, data, n)
(or the filebuf is unbuffered), use sys_write directly. */
/* First figure out how much space is available in the buffer. */
count = f->_IO_write_end - f->_IO_write_ptr; /* Space available. */
if ((f->_flags & _IO_LINE_BUF) && (f->_flags & _IO_CURRENTLY_PUTTING))
{
count = f->_IO_buf_end - f->_IO_write_ptr;
@ -1308,6 +1307,9 @@ _IO_new_file_xsputn (f, data, n)
}
}
}
else if (f->_IO_write_end > f->_IO_write_ptr)
count = f->_IO_write_end - f->_IO_write_ptr; /* Space available. */
/* Then fill the buffer. */
if (count > 0)
{