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1999-04-13  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* libio/obprintf.c (_IO_obstack_overflow): Put the write end at
	the real end of the chunk, not some random point inbetween.
	(_IO_obstack_xsputn): Likewise.  Actually copy the data into the
	obstack when growing.  Use fast version of obstack_blank when
	shrinking.
	(struct _IO_obstack_file): Use _IO_FILE_plus instead of explicitly
	allocating the vtable pointer.
	(_IO_obstack_vprintf): Adjust for above change and avoid
	unnecessary casts.  Use fast version of obstack_blank when
	shrinking.
	Fixes PR libc/1075.
This commit is contained in:
Ulrich Drepper 1999-04-12 23:00:37 +00:00
parent 9711986096
commit 2799531132
3 changed files with 37 additions and 20 deletions
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14
ChangeLog
View File

@ -1,3 +1,17 @@
1999-04-13 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* libio/obprintf.c (_IO_obstack_overflow): Put the write end at
the real end of the chunk, not some random point inbetween.
(_IO_obstack_xsputn): Likewise. Actually copy the data into the
obstack when growing. Use fast version of obstack_blank when
shrinking.
(struct _IO_obstack_file): Use _IO_FILE_plus instead of explicitly
allocating the vtable pointer.
(_IO_obstack_vprintf): Adjust for above change and avoid
unnecessary casts. Use fast version of obstack_blank when
shrinking.
Fixes PR libc/1075.
1999-04-12 Ulrich Drepper <drepper@cygnus.com>
* iconvdata/gconv-modules: Fix typo. Add UJIS alias.

6
NEWS
View File

@ -9,7 +9,11 @@ Please send GNU C library bug reports using the `glibcbug' script to
Version 2.1.1
* New ISO C 9x function _exit, imaxabs, and imaxdiv are added.
* New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
* New xdr functions are added.
* Fixed a number of bugs and incompatibilities with glibc 2.0.
Version 2.1

37
libio/obprintf.c
View File

@ -1,5 +1,5 @@
/* Print output of stream to given obstack.
Copyright (C) 1996, 1997 Free Software Foundation, Inc.
Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -31,8 +31,7 @@
struct _IO_obstack_file
{
struct _IO_FILE file;
const void *vtable;
struct _IO_FILE_plus file;
struct obstack *obstack;
};
@ -50,7 +49,7 @@ _IO_obstack_overflow (_IO_FILE *fp, int c)
/* Setup the buffer pointers again. */
fp->_IO_write_base = obstack_base (obstack);
fp->_IO_write_ptr = obstack_next_free (obstack);
fp->_IO_write_end = fp->_IO_write_base + obstack_room (obstack);
fp->_IO_write_end = fp->_IO_write_ptr + obstack_room (obstack);
/* Now allocate the rest of the current chunk. */
obstack_blank_fast (obstack, fp->_IO_write_end - fp->_IO_write_ptr);
@ -67,15 +66,15 @@ _IO_obstack_xsputn (_IO_FILE *fp, const void *data, _IO_size_t n)
{
/* We need some more memory. First shrink the buffer to the
space we really currently need. */
obstack_blank (obstack, fp->_IO_write_ptr - fp->_IO_write_end);
obstack_blank_fast (obstack, fp->_IO_write_ptr - fp->_IO_write_end);
/* Now grow for N bytes. */
obstack_blank (obstack, n);
/* Now grow for N bytes, and put the data there. */
obstack_grow (obstack, data, n);
/* Setup the buffer pointers again. */
fp->_IO_write_base = obstack_base (obstack);
fp->_IO_write_ptr = obstack_next_free (obstack);
fp->_IO_write_end = (fp->_IO_write_base + obstack_room (obstack));
fp->_IO_write_end = (fp->_IO_write_ptr + obstack_room (obstack));
/* Now allocate the rest of the current chunk. */
obstack_blank_fast (obstack, fp->_IO_write_end - fp->_IO_write_ptr);
}
@ -125,25 +124,25 @@ _IO_obstack_vprintf (struct obstack *obstack, const char *format, va_list args)
int result;
#ifdef _IO_MTSAFE_IO
new_f.ofile.file._lock = &new_f.lock;
new_f.ofile.file.file._lock = &new_f.lock;
#endif
_IO_init ((_IO_FILE *) &new_f.ofile, 0);
_IO_JUMPS (&new_f.ofile.file) = &_IO_obstack_jumps;
_IO_str_init_static (&new_f.ofile.file, obstack_base (obstack),
(obstack_object_size (obstack) +
obstack_room (obstack)), obstack_next_free (obstack));
_IO_init (&new_f.ofile.file.file, 0);
_IO_JUMPS (&new_f.ofile.file.file) = &_IO_obstack_jumps;
_IO_str_init_static (&new_f.ofile.file.file, obstack_base (obstack),
obstack_object_size (obstack) + obstack_room (obstack),
obstack_next_free (obstack));
/* Now allocate the rest of the current chunk. */
obstack_blank_fast (obstack,
(new_f.ofile.file._IO_write_end
- new_f.ofile.file._IO_write_ptr));
(new_f.ofile.file.file._IO_write_end
- new_f.ofile.file.file._IO_write_ptr));
new_f.ofile.obstack = obstack;
result = _IO_vfprintf ((_IO_FILE *) &new_f, format, args);
result = _IO_vfprintf (&new_f.ofile.file.file, format, args);
/* Shrink the buffer to the space we really currently need. */
obstack_blank (obstack, (new_f.ofile.file._IO_write_ptr
- new_f.ofile.file._IO_write_end));
obstack_blank_fast (obstack, (new_f.ofile.file.file._IO_write_ptr
- new_f.ofile.file.file._IO_write_end));
return result;
}