view src/os_amiga.h @ 33262:6eac4f616293 v9.0.1899

patch 9.0.1899: potential buffer overflow in PBYTE macro Commit: https://github.com/vim/vim/commit/ffb13674d1af1c90beb229867ec989e4fb232df3 Author: Christian Brabandt <cb@256bit.org> Date: Fri Sep 15 20:22:02 2023 +0200 patch 9.0.1899: potential buffer overflow in PBYTE macro Problem: potential buffer overflow in PBYTE macro Solution: Check returned memline length closes: #13083 the PBYTE macro is used to put byte c at a position lp of the returned memline. However, in case of unexpected errors ml_get_buf() may return either "???" or an empty line in which case it is quite likely that we are causing a buffer overrun. Therefore, switch the macro PBYTE (which is only used in ops.c anyhow) to a function, that verifies that we will only try to access within the given length of the buffer. Also, since the macro is only used in ops.c, move the definition from macros.h to ops.c Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Fri, 15 Sep 2023 20:30:07 +0200
parents 695b50472e85
children
line wrap: on
line source

/* vi:set ts=8 sts=4 sw=4 noet:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 */

/*
 * Amiga Machine-dependent things
 */

#define CASE_INSENSITIVE_FILENAME   // ignore case when comparing file names
#define SPACE_IN_FILENAME
#define USE_FNAME_CASE		    // adjust case of file names
#define USE_TERM_CONSOLE
#define HAVE_AVAIL_MEM

#ifndef HAVE_CONFIG_H
# if defined(AZTEC_C) || defined(__amigaos4__)
#  define HAVE_STAT_H
# endif
# define HAVE_STDLIB_H
# define HAVE_STRING_H
# define HAVE_FCNTL_H
# define HAVE_STRCSPN
# define HAVE_STRICMP
# define HAVE_STRNICMP
# define HAVE_STRFTIME	    // guessed
# define HAVE_SETENV
# define HAVE_MEMSET
# define HAVE_QSORT
# if defined(__DATE__) && defined(__TIME__)
#  define HAVE_DATE_TIME
# endif

#endif // HAVE_CONFIG_H

#ifndef	DFLT_ERRORFILE
# define DFLT_ERRORFILE		"AztecC.Err"	// Should this change?
#endif

#ifndef	DFLT_RUNTIMEPATH
# define DFLT_RUNTIMEPATH "home:vimfiles,$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after,home:vimfiles/after"
#endif
#ifndef	CLEAN_RUNTIMEPATH
# define CLEAN_RUNTIMEPATH "$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after"
#endif

#ifndef	BASENAMELEN
# define BASENAMELEN	26	// Amiga
#endif

#ifndef	TEMPNAME
# define TEMPNAME	"t:v?XXXXXX"
# define TEMPNAMELEN	12
#endif

// cproto fails on missing include files
#ifndef PROTO

#include <exec/types.h>
#include <libraries/dos.h>
#include <libraries/dosextens.h>

// Currently, all Amiga compilers except AZTEC C have these...
#ifndef AZTEC_C
# include <proto/exec.h>
# include <proto/dos.h>
# include <proto/intuition.h>
#endif

#endif // PROTO

#define FNAME_ILLEGAL ";*?`#%" // illegal characters in a file name

/*
 * Manx doesn't have off_t, define it here.
 */
#ifdef AZTEC_C
typedef long off_t;
#endif

#ifdef LATTICE
# define USE_TMPNAM	// use tmpnam() instead of mktemp()
#endif

#ifdef __GNUC__
# include <sys/stat.h>
# include <unistd.h>
# include <limits.h>
# include <errno.h>
# include <pwd.h>
# include <grp.h>
# include <dirent.h>
#endif

#include <time.h>	// for strftime() and others

#ifndef PROTO
/*
 * arpbase.h must be included before functions.h
 */
#ifdef FEAT_ARP
# include <libraries/arpbase.h>
#endif

#endif // PROTO

/*
 * This won't be needed if you have a version of Lattice 4.01 without broken
 * break signal handling.
 */
#include <signal.h>

/*
 * Names for the EXRC, HELP and temporary files.
 * Some of these may have been defined in the makefile.
 */
#ifndef SYS_VIMRC_FILE
# define SYS_VIMRC_FILE "$VIM/vimrc"
#endif
#ifndef SYS_GVIMRC_FILE
# define SYS_GVIMRC_FILE "$VIM/gvimrc"
#endif
#ifndef SYS_MENU_FILE
# define SYS_MENU_FILE	"$VIMRUNTIME/menu.vim"
#endif
#ifndef DFLT_HELPFILE
# define DFLT_HELPFILE	"$VIMRUNTIME/doc/help.txt"
#endif
#ifndef SYNTAX_FNAME
# define SYNTAX_FNAME	"$VIMRUNTIME/syntax/%s.vim"
#endif

#ifndef USR_EXRC_FILE
# define USR_EXRC_FILE	"s:.exrc"
#endif
#ifndef USR_EXRC_FILE2
# define USR_EXRC_FILE2	"home:.exrc"
#endif

#ifndef USR_VIMRC_FILE
# define USR_VIMRC_FILE	"s:.vimrc"
#endif
#ifndef USR_VIMRC_FILE2
# define USR_VIMRC_FILE2 "home:.vimrc"
#endif
#ifndef USR_VIMRC_FILE3
# define USR_VIMRC_FILE3 "home:vimfiles:vimrc"
#endif
#ifndef USR_VIMRC_FILE4
# define USR_VIMRC_FILE4 "$VIM/.vimrc"
#endif
#ifndef VIM_DEFAULTS_FILE
# define VIM_DEFAULTS_FILE "$VIMRUNTIME/defaults.vim"
#endif
#ifndef EVIM_FILE
# define EVIM_FILE	"$VIMRUNTIME/evim.vim"
#endif

#ifndef USR_GVIMRC_FILE
# define USR_GVIMRC_FILE "s:.gvimrc"
#endif
#ifndef USR_GVIMRC_FILE2
# define USR_GVIMRC_FILE2 "home:.gvimrc"
#endif
#ifndef USR_GVIMRC_FILE3
# define USR_GVIMRC_FILE3 "home:vimfiles:gvimrc"
#endif
#ifndef USR_GVIMRC_FILE4
# define USR_GVIMRC_FILE4 "$VIM/.gvimrc"
#endif

#ifdef FEAT_VIMINFO
# ifndef VIMINFO_FILE
#  define VIMINFO_FILE	"s:.viminfo"
# endif
#endif

#ifndef EXRC_FILE
# define EXRC_FILE	".exrc"
#endif

#ifndef VIMRC_FILE
# define VIMRC_FILE	".vimrc"
#endif

#ifndef GVIMRC_FILE
# define GVIMRC_FILE	".gvimrc"
#endif

#ifndef DFLT_BDIR
# define DFLT_BDIR	".,t:"		// default for 'backupdir'
#endif

#ifndef DFLT_DIR
# define DFLT_DIR	".,t:"		// default for 'directory'
#endif

#ifndef DFLT_VDIR
# define DFLT_VDIR	"home:vimfiles/view"	// default for 'viewdir'
#endif

#ifndef DFLT_MAXMEM
# define DFLT_MAXMEM	256		// use up to 256Kbyte for buffer
#endif
#ifndef DFLT_MAXMEMTOT
# define DFLT_MAXMEMTOT	0		// decide in set_init
#endif

#if defined(SASC)
int setenv(const char *, const char *);
#endif

#define mch_remove(x) remove((char *)(x))
#define mch_rename(src, dst) rename(src, dst)
#define mch_chdir(s) chdir(s)
#define vim_mkdir(x, y) mch_mkdir(x)