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c8defa67df4cf6dde2d74dc3675cef22b2bcbabb
nethack/util/recover.c
Bart House 8944235282 Enforced the inclusion of windows headers before nethack headers. 
Moved the code page 437 mapping table to winnt.c so that it could be
used in window and console clients.
Added check that fonts support unicode values we use from code page 437.
Use unicode to draw text if font supports it otherwise use ASCII.
2018-11-12 01:58:56 -08:00

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/* NetHack 3.6 recover.c $NHDT-Date: 1501461282 2017/07/31 00:34:42 $ $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.16 $ */
/* Copyright (c) Janet Walz, 1992. */
/* NetHack may be freely redistributed. See license for details. */
/*
* Utility for reconstructing NetHack save file from a set of individual
* level files. Requires that the `checkpoint' option be enabled at the
* time NetHack creates those level files.
*/
#ifdef WIN32
#include <errno.h>
#include "win32api.h"
#endif
#include "config.h"
#if !defined(O_WRONLY) && !defined(LSC) && !defined(AZTEC_C)
#include <fcntl.h>
#endif
#ifdef VMS
extern int FDECL(vms_creat, (const char *, unsigned));
extern int FDECL(vms_open, (const char *, int, unsigned));
#endif /* VMS */
int FDECL(restore_savefile, (char *));
void FDECL(set_levelfile_name, (int));
int FDECL(open_levelfile, (int));
int NDECL(create_savefile);
void FDECL(copy_bytes, (int, int));
#ifndef WIN_CE
#define Fprintf (void) fprintf
#else
#define Fprintf (void) nhce_message
static void nhce_message(FILE *, const char *, ...);
#endif
#define Close (void) close
#ifdef UNIX
#define SAVESIZE (PL_NSIZ + 13) /* save/99999player.e */
#else
#ifdef VMS
#define SAVESIZE (PL_NSIZ + 22) /* [.save]<uid>player.e;1 */
#else
#ifdef WIN32
#define SAVESIZE (PL_NSIZ + 40) /* username-player.NetHack-saved-game */
#else
#define SAVESIZE FILENAME /* from macconf.h or pcconf.h */
#endif
#endif
#endif
#if defined(EXEPATH)
char *FDECL(exepath, (char *));
#endif
#if defined(__BORLANDC__) && !defined(_WIN32)
extern unsigned _stklen = STKSIZ;
#endif
char
savename[SAVESIZE]; /* holds relative path of save file from playground */
int
main(argc, argv)
int argc;
char *argv[];
{
int argno;
const char *dir = (char *) 0;
#ifdef AMIGA
char *startdir = (char *) 0;
#endif
if (!dir)
dir = getenv("NETHACKDIR");
if (!dir)
dir = getenv("HACKDIR");
#if defined(EXEPATH)
if (!dir)
dir = exepath(argv[0]);
#endif
if (argc == 1 || (argc == 2 && !strcmp(argv[1], "-"))) {
Fprintf(stderr, "Usage: %s [ -d directory ] base1 [ base2 ... ]\n",
argv[0]);
#if defined(WIN32) || defined(MSDOS)
if (dir) {
Fprintf(
stderr,
"\t(Unless you override it with -d, recover will look \n");
Fprintf(stderr, "\t in the %s directory on your system)\n", dir);
}
#endif
exit(EXIT_FAILURE);
}
argno = 1;
if (!strncmp(argv[argno], "-d", 2)) {
dir = argv[argno] + 2;
if (*dir == '=' || *dir == ':')
dir++;
if (!*dir && argc > argno) {
argno++;
dir = argv[argno];
}
if (!*dir) {
Fprintf(stderr,
"%s: flag -d must be followed by a directory name.\n",
argv[0]);
exit(EXIT_FAILURE);
}
argno++;
}
#if defined(SECURE) && !defined(VMS)
if (dir
#ifdef HACKDIR
&& strcmp(dir, HACKDIR)
#endif
) {
(void) setgid(getgid());
(void) setuid(getuid());
}
#endif /* SECURE && !VMS */
#ifdef HACKDIR
if (!dir)
dir = HACKDIR;
#endif
#ifdef AMIGA
startdir = getcwd(0, 255);
#endif
if (dir && chdir((char *) dir) < 0) {
Fprintf(stderr, "%s: cannot chdir to %s.\n", argv[0], dir);
exit(EXIT_FAILURE);
}
while (argc > argno) {
if (restore_savefile(argv[argno]) == 0)
Fprintf(stderr, "recovered \"%s\" to %s\n", argv[argno],
savename);
argno++;
}
#ifdef AMIGA
if (startdir)
(void) chdir(startdir);
#endif
exit(EXIT_SUCCESS);
/*NOTREACHED*/
return 0;
}
static char lock[256];
void
set_levelfile_name(lev)
int lev;
{
char *tf;
tf = rindex(lock, '.');
if (!tf)
tf = lock + strlen(lock);
(void) sprintf(tf, ".%d", lev);
#ifdef VMS
(void) strcat(tf, ";1");
#endif
}
int
open_levelfile(lev)
int lev;
{
int fd;
set_levelfile_name(lev);
#if defined(MICRO) || defined(WIN32) || defined(MSDOS)
fd = open(lock, O_RDONLY | O_BINARY);
#else
fd = open(lock, O_RDONLY, 0);
#endif
return fd;
}
int
create_savefile()
{
int fd;
#if defined(MICRO) || defined(WIN32) || defined(MSDOS)
fd = open(savename, O_WRONLY | O_BINARY | O_CREAT | O_TRUNC, FCMASK);
#else
fd = creat(savename, FCMASK);
#endif
return fd;
}
void
copy_bytes(ifd, ofd)
int ifd, ofd;
{
char buf[BUFSIZ];
int nfrom, nto;
do {
nfrom = read(ifd, buf, BUFSIZ);
nto = write(ofd, buf, nfrom);
if (nto != nfrom) {
Fprintf(stderr, "file copy failed!\n");
exit(EXIT_FAILURE);
}
} while (nfrom == BUFSIZ);
}
int
restore_savefile(basename)
char *basename;
{
int gfd, lfd, sfd;
int lev, savelev, hpid, pltmpsiz;
xchar levc;
struct version_info version_data;
struct savefile_info sfi;
char plbuf[PL_NSIZ];
/* level 0 file contains:
* pid of creating process (ignored here)
* level number for current level of save file
* name of save file nethack would have created
* savefile info
* player name
* and game state
*/
(void) strcpy(lock, basename);
gfd = open_levelfile(0);
if (gfd < 0) {
#if defined(WIN32) && !defined(WIN_CE)
if (errno == EACCES) {
Fprintf(
stderr,
"\nThere are files from a game in progress under your name.");
Fprintf(stderr, "\nThe files are locked or inaccessible.");
Fprintf(stderr, "\nPerhaps the other game is still running?\n");
} else
Fprintf(stderr, "\nTrouble accessing level 0 (errno = %d).\n",
errno);
#endif
Fprintf(stderr, "Cannot open level 0 for %s.\n", basename);
return -1;
}
if (read(gfd, (genericptr_t) &hpid, sizeof hpid) != sizeof hpid) {
Fprintf(
stderr, "%s\n%s%s%s\n",
"Checkpoint data incompletely written or subsequently clobbered;",
"recovery for \"", basename, "\" impossible.");
Close(gfd);
return -1;
}
if (read(gfd, (genericptr_t) &savelev, sizeof(savelev))
!= sizeof(savelev)) {
Fprintf(stderr, "Checkpointing was not in effect for %s -- recovery "
"impossible.\n",
basename);
Close(gfd);
return -1;
}
if ((read(gfd, (genericptr_t) savename, sizeof savename)
!= sizeof savename)
|| (read(gfd, (genericptr_t) &version_data, sizeof version_data)
!= sizeof version_data)
|| (read(gfd, (genericptr_t) &sfi, sizeof sfi) != sizeof sfi)
|| (read(gfd, (genericptr_t) &pltmpsiz, sizeof pltmpsiz)
!= sizeof pltmpsiz) || (pltmpsiz > PL_NSIZ)
|| (read(gfd, (genericptr_t) &plbuf, pltmpsiz) != pltmpsiz)) {
Fprintf(stderr, "Error reading %s -- can't recover.\n", lock);
Close(gfd);
return -1;
}
/* save file should contain:
* version info
* savefile info
* player name
* current level (including pets)
* (non-level-based) game state
* other levels
*/
sfd = create_savefile();
if (sfd < 0) {
Fprintf(stderr, "Cannot create savefile %s.\n", savename);
Close(gfd);
return -1;
}
lfd = open_levelfile(savelev);
if (lfd < 0) {
Fprintf(stderr, "Cannot open level of save for %s.\n", basename);
Close(gfd);
Close(sfd);
return -1;
}
if (write(sfd, (genericptr_t) &version_data, sizeof version_data)
!= sizeof version_data) {
Fprintf(stderr, "Error writing %s; recovery failed.\n", savename);
Close(gfd);
Close(sfd);
Close(lfd);
return -1;
}
if (write(sfd, (genericptr_t) &sfi, sizeof sfi) != sizeof sfi) {
Fprintf(stderr,
"Error writing %s; recovery failed (savefile_info).\n",
savename);
Close(gfd);
Close(sfd);
Close(lfd);
return -1;
}
if (write(sfd, (genericptr_t) &pltmpsiz, sizeof pltmpsiz)
!= sizeof pltmpsiz) {
Fprintf(stderr,
"Error writing %s; recovery failed (player name size).\n",
savename);
Close(gfd);
Close(sfd);
Close(lfd);
return -1;
}
if (write(sfd, (genericptr_t) &plbuf, pltmpsiz) != pltmpsiz) {
Fprintf(stderr, "Error writing %s; recovery failed (player name).\n",
savename);
Close(gfd);
Close(sfd);
Close(lfd);
return -1;
}
copy_bytes(lfd, sfd);
Close(lfd);
(void) unlink(lock);
copy_bytes(gfd, sfd);
Close(gfd);
set_levelfile_name(0);
(void) unlink(lock);
for (lev = 1; lev < 256; lev++) {
/* level numbers are kept in xchars in save.c, so the
* maximum level number (for the endlevel) must be < 256
*/
if (lev != savelev) {
lfd = open_levelfile(lev);
if (lfd >= 0) {
/* any or all of these may not exist */
levc = (xchar) lev;
write(sfd, (genericptr_t) &levc, sizeof(levc));
copy_bytes(lfd, sfd);
Close(lfd);
(void) unlink(lock);
}
}
}
Close(sfd);
#if 0 /* OBSOLETE, HackWB is no longer in use */
#ifdef AMIGA
{
/* we need to create an icon for the saved game
* or HackWB won't notice the file.
*/
char iconfile[FILENAME];
int in, out;
(void) sprintf(iconfile, "%s.info", savename);
in = open("NetHack:default.icon", O_RDONLY);
out = open(iconfile, O_WRONLY | O_TRUNC | O_CREAT);
if (in > -1 && out > -1) {
copy_bytes(in, out);
}
if (in > -1)
close(in);
if (out > -1)
close(out);
}
#endif /*AMIGA*/
#endif
return 0;
}
#ifdef EXEPATH
#ifdef __DJGPP__
#define PATH_SEPARATOR '/'
#else
#define PATH_SEPARATOR '\\'
#endif
#define EXEPATHBUFSZ 256
char exepathbuf[EXEPATHBUFSZ];
char *
exepath(str)
char *str;
{
char *tmp, *tmp2;
int bsize;
if (!str)
return (char *) 0;
bsize = EXEPATHBUFSZ;
tmp = exepathbuf;
#if !defined(WIN32)
strcpy(tmp, str);
#else
#if defined(WIN_CE)
{
TCHAR wbuf[EXEPATHBUFSZ];
GetModuleFileName((HANDLE) 0, wbuf, EXEPATHBUFSZ);
NH_W2A(wbuf, tmp, bsize);
}
#else
*(tmp + GetModuleFileName((HANDLE) 0, tmp, bsize)) = '\0';
#endif
#endif
tmp2 = strrchr(tmp, PATH_SEPARATOR);
if (tmp2)
*tmp2 = '\0';
return tmp;
}
#endif /* EXEPATH */
#ifdef AMIGA
#include "date.h"
const char amiga_version_string[] = AMIGA_VERSION_STRING;
#endif
#ifdef WIN_CE
void
nhce_message(FILE *f, const char *str, ...)
{
va_list ap;
TCHAR wbuf[NHSTR_BUFSIZE];
char buf[NHSTR_BUFSIZE];
va_start(ap, str);
vsprintf(buf, str, ap);
va_end(ap);
MessageBox(NULL, NH_A2W(buf, wbuf, NHSTR_BUFSIZE), TEXT("Recover"),
MB_OK);
}
#endif
/*recover.c*/
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