view lwar/lwar.h @ 577:e49d24f4a9a5

Correct bug in the object file output code leading to stack corruption It turns out leaving a pointer to a stack allocated temporary in a persistent data structure is not conducive to correct program operation. Undo the export check setup in the object file output sequence so a pointer to stack allocated memory is not left hanging when the function returns. This seems to correct at least one mysterious crash bug, and possibly others. Thanks to Boisy Pitre for reporting the crash bug that led to this discovery, as well as a previous crash bug that likely has the same root cause. Additional thanks to Ciaran Anscomb whose debugger wielding wizardry revealed the exact location of this particular bit of unbrilliance.
author William Astle <lost@l-w.ca>
date Sat, 03 Aug 2024 14:30:06 -0600
parents 45df37e81741
children
line wrap: on
line source

/*
lwar.h
Copyright © 2009 William Astle

This file is part of LWAR.

LWAR is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.

This program 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 General Public License for
more details.

You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.

Contains the main defs used by the linker
*/


#define LWAR_OP_LIST	1
#define LWAR_OP_ADD		2
#define LWAR_OP_REMOVE	3
#define LWAR_OP_CREATE	4
#define LWAR_OP_EXTRACT	5
#define LWAR_OP_REPLACE	6

#ifndef __lwar_h_seen__
#define __lwar_h_seen__

#ifndef __lwar_c_seen__

extern char *archive_file;
extern int debug_level;
extern int operation;
extern int nfiles;
extern char **files;
extern int mergeflag;
extern int filename_flag;

//typedef void * ARHANDLE;

#define AR_MODE_RD		1
#define AR_MODE_WR		2
#define AR_MODE_RW		3
#define AR_MODE_CREATE	4


#define __lwar_E__ extern
#else
#define __lwar_E__
#endif // __lwar_c_seen__

__lwar_E__ void add_file_name(char *fn);

__lwar_E__ char *get_file_name(char *fn);

//__lwar_E__ ARHANDLE open_archive(char *fn, int mode);

#undef __lwar_E__

#endif //__lwar_h_seen__