From 5c25449dd9fd706f79ee6d92019f28044d9270fa Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Wed, 5 Mar 2008 09:37:45 +0000 Subject: Updated to fedora-glibc-20080305T0857 --- debug/obprintf_chk.c | 117 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 debug/obprintf_chk.c (limited to 'debug/obprintf_chk.c') diff --git a/debug/obprintf_chk.c b/debug/obprintf_chk.c new file mode 100644 index 0000000000..8e7014f394 --- /dev/null +++ b/debug/obprintf_chk.c @@ -0,0 +1,117 @@ +/* Print output of stream to given obstack. + Copyright (C) 1996,1997,1999,2000,2001,2002,2003,2004,2005,2006,2008 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + + +#include +#include +#include "../libio/strfile.h" +#include +#include +#include +#include +#include +#include + + +struct _IO_obstack_file +{ + struct _IO_FILE_plus file; + struct obstack *obstack; +}; + +extern const struct _IO_jump_t _IO_obstack_jumps attribute_hidden; + +int +__obstack_vprintf_chk (struct obstack *obstack, int flags, const char *format, + va_list args) +{ + struct obstack_FILE + { + struct _IO_obstack_file ofile; + } new_f; + int result; + int size; + int room; + +#ifdef _IO_MTSAFE_IO + new_f.ofile.file.file._lock = NULL; +#endif + + _IO_no_init (&new_f.ofile.file.file, _IO_USER_LOCK, -1, NULL, NULL); + _IO_JUMPS (&new_f.ofile.file) = &_IO_obstack_jumps; + room = obstack_room (obstack); + size = obstack_object_size (obstack) + room; + if (size == 0) + { + /* We have to handle the allocation a bit different since the + `_IO_str_init_static' function would handle a size of zero + different from what we expect. */ + + /* Get more memory. */ + obstack_make_room (obstack, 64); + + /* Recompute how much room we have. */ + room = obstack_room (obstack); + size = room; + + assert (size != 0); + } + + _IO_str_init_static_internal ((struct _IO_strfile_ *) &new_f.ofile, + obstack_base (obstack), + size, obstack_next_free (obstack)); + /* Now allocate the rest of the current chunk. */ + assert (size == (new_f.ofile.file.file._IO_write_end + - new_f.ofile.file.file._IO_write_base)); + assert (new_f.ofile.file.file._IO_write_ptr + == (new_f.ofile.file.file._IO_write_base + + obstack_object_size (obstack))); + obstack_blank_fast (obstack, room); + + new_f.ofile.obstack = obstack; + + /* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n + can only come from read-only format strings. */ + if (flags > 0) + new_f.ofile.file.file._flags2 |= _IO_FLAGS2_FORTIFY; + + result = INTUSE(_IO_vfprintf) (&new_f.ofile.file.file, format, args); + + /* Shrink the buffer to the space we really currently need. */ + obstack_blank_fast (obstack, (new_f.ofile.file.file._IO_write_ptr + - new_f.ofile.file.file._IO_write_end)); + + return result; +} +libc_hidden_def (__obstack_vprintf_chk) + + +int +__obstack_printf_chk (struct obstack *obstack, int flags, const char *format, + ...) +{ + int result; + va_list ap; + va_start (ap, format); + result = __obstack_vprintf_chk (obstack, flags, format, ap); + va_end (ap); + return result; +} -- cgit v1.2.3