-/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
-/* hack.unix.c - version 1.0.3 */
+/* $NetBSD: hack.unix.c,v 1.18 2019/02/03 10:48:46 mrg Exp $ */
+
+/*
+ * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
+ * Amsterdam
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Stichting Centrum voor Wiskunde en
+ * Informatica, nor the names of its contributors may be used to endorse or
+ * promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__RCSID("$NetBSD: hack.unix.c,v 1.18 2019/02/03 10:48:46 mrg Exp $");
+#endif /* not lint */
/* This file collects some Unix dependencies; hack.pager.c contains some more */
* - determination of what files are "very old"
*/
-#include <stdio.h>
#include <errno.h>
-#include "hack.h" /* mainly for index() which depends on BSD */
-
-#include <sys/types.h> /* for time_t and stat */
-#include <sys/stat.h>
+#include <sys/types.h> /* for time_t and stat */
+#include <sys/stat.h>
#ifdef BSD
-#include <sys/time.h>
+#include <sys/time.h>
#else
-#include <time.h>
-#endif BSD
+#include <time.h>
+#endif /* BSD */
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <fcntl.h>
+
+#include "hack.h" /* mainly for strchr() which depends on BSD */
+#include "extern.h"
+
+extern int locknum;
+
+static struct tm *getlt(void);
+static int veryold(int);
-extern char *getenv();
-extern time_t time();
-setrandom()
+void
+setrandom(void)
{
- (void) srandom((int) time ((time_t *) 0));
+ (void) srandom((int) time((time_t *) 0));
}
-struct tm *
-getlt()
+static struct tm *
+getlt(void)
{
- time_t date;
- struct tm *localtime();
+ time_t date;
(void) time(&date);
- return(localtime(&date));
+ return (localtime(&date));
}
-getyear()
+int
+getyear(void)
{
- return(1900 + getlt()->tm_year);
+ return (1900 + getlt()->tm_year);
}
-char *
-getdate()
+char *
+getdatestr(void)
{
- static char datestr[7];
- register struct tm *lt = getlt();
-
- (void) sprintf(datestr, "%2d%2d%2d",
- lt->tm_year, lt->tm_mon + 1, lt->tm_mday);
- if(datestr[2] == ' ') datestr[2] = '0';
- if(datestr[4] == ' ') datestr[4] = '0';
- return(datestr);
+ static char datestr[32];
+ struct tm *lt = getlt();
+
+ (void) snprintf(datestr, sizeof(datestr), "%02d%02d%02d",
+ lt->tm_year % 100, lt->tm_mon + 1, lt->tm_mday);
+ return (datestr);
}
-phase_of_the_moon() /* 0-7, with 0: new, 4: full */
-{ /* moon period: 29.5306 days */
- /* year: 365.2422 days */
- register struct tm *lt = getlt();
- register int epact, diy, golden;
+int
+phase_of_the_moon(void)
+{ /* 0-7, with 0: new, 4: full *//* moon
+ * period: 29.5306 days */
+ /* year: 365.2422 days */
+ struct tm *lt = getlt();
+ int epact, diy, golden;
diy = lt->tm_yday;
golden = (lt->tm_year % 19) + 1;
if ((epact == 25 && golden > 11) || epact == 24)
epact++;
- return( (((((diy + epact) * 6) + 11) % 177) / 22) & 7 );
+ return ((((((diy + epact) * 6) + 11) % 177) / 22) & 7);
}
-night()
+int
+night(void)
{
- register int hour = getlt()->tm_hour;
+ int hour = getlt()->tm_hour;
- return(hour < 6 || hour > 21);
+ return (hour < 6 || hour > 21);
}
-midnight()
+int
+midnight(void)
{
- return(getlt()->tm_hour == 0);
+ return (getlt()->tm_hour == 0);
}
-struct stat buf, hbuf;
+static struct stat buf, hbuf;
-gethdate(name) char *name; {
-/* old version - for people short of space */
-/*
-/* register char *np;
-/* if(stat(name, &hbuf))
-/* error("Cannot get status of %s.",
-/* (np = rindex(name, '/')) ? np+1 : name);
-/*
-/* version using PATH from: seismo!gregc@ucsf-cgl.ARPA (Greg Couch) */
+void
+gethdate(char *name)
+{
+#if 0
+ /* old version - for people short of space */
+ char *np;
-/*
- * The problem with #include <sys/param.h> is that this include file
- * does not exist on all systems, and moreover, that it sometimes includes
- * <sys/types.h> again, so that the compiler sees these typedefs twice.
- */
+ if(stat(name, &hbuf))
+ error("Cannot get status of %s.",
+ (np = strrchr(name, '/')) ? np+1 : name);
+#else
+ /* version using PATH from: seismo!gregc@ucsf-cgl.ARPA (Greg Couch) */
+
+
+ /*
+ * The problem with #include <sys/param.h> is that this include file
+ * does not exist on all systems, and moreover, that it sometimes includes
+ * <sys/types.h> again, so that the compiler sees these typedefs twice.
+ */
#define MAXPATHLEN 1024
-register char *np, *path;
-char filename[MAXPATHLEN+1];
- if (index(name, '/') != NULL || (path = getenv("PATH")) == NULL)
+ const char *np, *path;
+ char filename[MAXPATHLEN + 1];
+ if (strchr(name, '/') != NULL || (path = getenv("PATH")) == NULL)
path = "";
for (;;) {
- if ((np = index(path, ':')) == NULL)
+ if ((np = strchr(path, ':')) == NULL)
np = path + strlen(path); /* point to end str */
- if (np - path <= 1) /* %% */
- (void) strcpy(filename, name);
+ if (np - path <= 1) /* %% */
+ (void) strlcpy(filename, name, sizeof(filename));
else {
- (void) strncpy(filename, path, np - path);
- filename[np - path] = '/';
- (void) strcpy(filename + (np - path) + 1, name);
+ (void) snprintf(filename, sizeof(filename),
+ "%.*s/%s",
+ (int)(np - path), path, name);
}
if (stat(filename, &hbuf) == 0)
return;
path = np + 1;
}
error("Cannot get status of %s.",
- (np = rindex(name, '/')) ? np+1 : name);
+ (np = strrchr(name, '/')) ? np + 1 : name);
+#endif
}
-uptodate(fd) {
- if(fstat(fd, &buf)) {
+int
+uptodate(int fd)
+{
+ if (fstat(fd, &buf)) {
pline("Cannot get status of saved level? ");
- return(0);
+ return (0);
}
- if(buf.st_mtime < hbuf.st_mtime) {
+ if (buf.st_mtime < hbuf.st_mtime) {
pline("Saved level is out of date. ");
- return(0);
+ return (0);
}
- return(1);
+ return (1);
}
/* see whether we should throw away this xlock file */
-veryold(fd) {
- register int i;
- time_t date;
+static int
+veryold(int fd)
+{
+ int i;
+ time_t date;
- if(fstat(fd, &buf)) return(0); /* cannot get status */
- if(buf.st_size != sizeof(int)) return(0); /* not an xlock file */
+ if (fstat(fd, &buf))
+ return (0); /* cannot get status */
+ if (buf.st_size != sizeof(int))
+ return (0); /* not an xlock file */
(void) time(&date);
- if(date - buf.st_mtime < 3L*24L*60L*60L) { /* recent */
- extern int errno;
- int lockedpid; /* should be the same size as hackpid */
+ if (date - buf.st_mtime < 3L * 24L * 60L * 60L) { /* recent */
+ int lockedpid; /* should be the same size as
+ * hackpid */
- if(read(fd, (char *)&lockedpid, sizeof(lockedpid)) !=
- sizeof(lockedpid))
+ if (read(fd, &lockedpid, sizeof(lockedpid)) !=
+ sizeof(lockedpid))
/* strange ... */
- return(0);
-
- /* From: Rick Adams <seismo!rick>
- /* This will work on 4.1cbsd, 4.2bsd and system 3? & 5.
- /* It will do nothing on V7 or 4.1bsd. */
- if(!(kill(lockedpid, 0) == -1 && errno == ESRCH))
- return(0);
+ return (0);
+
+ /*
+ * From: Rick Adams <seismo!rick> This will work on
+ * 4.1cbsd, 4.2bsd and system 3? & 5. It will do nothing
+ * on V7 or 4.1bsd.
+ */
+ if (!(kill(lockedpid, 0) == -1 && errno == ESRCH))
+ return (0);
}
(void) close(fd);
- for(i = 1; i <= MAXLEVEL; i++) { /* try to remove all */
+ for (i = 1; i <= MAXLEVEL; i++) { /* try to remove all */
glo(i);
(void) unlink(lock);
}
glo(0);
- if(unlink(lock)) return(0); /* cannot remove it */
- return(1); /* success! */
+ if (unlink(lock))
+ return (0); /* cannot remove it */
+ return (1); /* success! */
}
-getlock()
+void
+getlock(void)
{
- extern int errno, hackpid, locknum;
- register int i = 0, fd;
+ int i = 0, fd;
(void) fflush(stdout);
/* we ignore QUIT and INT at this point */
if (link(HLOCK, LLOCK) == -1) {
- register int errnosv = errno;
+ int errnosv = errno;
perror(HLOCK);
printf("Cannot link %s to %s\n", LLOCK, HLOCK);
- switch(errnosv) {
+ switch (errnosv) {
case ENOENT:
- printf("Perhaps there is no (empty) file %s ?\n", HLOCK);
- break;
+ printf("Perhaps there is no (empty) file %s ?\n", HLOCK);
+ break;
case EACCES:
- printf("It seems you don't have write permission here.\n");
- break;
+ printf("It seems you don't have write permission here.\n");
+ break;
case EEXIST:
- printf("(Try again or rm %s.)\n", LLOCK);
- break;
+ printf("(Try again or rm %s.)\n", LLOCK);
+ break;
default:
- printf("I don't know what is wrong.");
+ printf("I don't know what is wrong.");
}
getret();
- error("");
- /*NOTREACHED*/
+ error("%s", "");
+ /* NOTREACHED */
}
-
regularize(lock);
glo(0);
- if(locknum > 25) locknum = 25;
+ if (locknum > 25)
+ locknum = 25;
do {
- if(locknum) lock[0] = 'a' + i++;
+ if (locknum)
+ lock[0] = 'a' + i++;
- if((fd = open(lock, 0)) == -1) {
- if(errno == ENOENT) goto gotlock; /* no such file */
+ if ((fd = open(lock, O_RDONLY)) == -1) {
+ if (errno == ENOENT)
+ goto gotlock; /* no such file */
perror(lock);
(void) unlink(LLOCK);
error("Cannot open %s", lock);
}
-
- if(veryold(fd)) /* if true, this closes fd and unlinks lock */
+ if (veryold(fd))/* if true, this closes fd and unlinks lock */
goto gotlock;
(void) close(fd);
- } while(i < locknum);
+ } while (i < locknum);
(void) unlink(LLOCK);
error(locknum ? "Too many hacks running now."
- : "There is a game in progress under your name.");
+ : "There is a game in progress under your name.");
gotlock:
fd = creat(lock, FMASK);
- if(unlink(LLOCK) == -1)
+ if (unlink(LLOCK) == -1)
error("Cannot unlink %s.", LLOCK);
- if(fd == -1) {
+ if (fd == -1) {
error("cannot creat lock file.");
} else {
- if(write(fd, (char *) &hackpid, sizeof(hackpid))
- != sizeof(hackpid)){
+ if (write(fd, &hackpid, sizeof(hackpid))
+ != sizeof(hackpid)) {
error("cannot write lock");
}
- if(close(fd) == -1) {
+ if (close(fd) == -1) {
error("cannot close lock");
}
}
-}
+}
#ifdef MAIL
* - Do something to the text when the scroll is enchanted or cancelled.
*/
#include "def.mkroom.h"
-static struct stat omstat,nmstat;
-static char *mailbox;
-static long laststattime;
+static struct stat omstat, nmstat;
+static char *mailbox;
+static long laststattime;
-getmailstatus() {
- if(!(mailbox = getenv("MAIL")))
+void
+getmailstatus(void)
+{
+ if (!(mailbox = getenv("MAIL")))
return;
- if(stat(mailbox, &omstat)){
+ if (stat(mailbox, &omstat)) {
#ifdef PERMANENT_MAILBOX
pline("Cannot get status of MAIL=%s .", mailbox);
mailbox = 0;
#else
omstat.st_mtime = 0;
-#endif PERMANENT_MAILBOX
+#endif /* PERMANENT_MAILBOX */
}
}
-ckmailstatus() {
- if(!mailbox
+void
+ckmailstatus(void)
+{
+ if (!mailbox
#ifdef MAILCKFREQ
- || moves < laststattime + MAILCKFREQ
-#endif MAILCKFREQ
- )
+ || moves < laststattime + MAILCKFREQ
+#endif /* MAILCKFREQ */
+ )
return;
laststattime = moves;
- if(stat(mailbox, &nmstat)){
+ if (stat(mailbox, &nmstat)) {
#ifdef PERMANENT_MAILBOX
pline("Cannot get status of MAIL=%s anymore.", mailbox);
mailbox = 0;
#else
nmstat.st_mtime = 0;
-#endif PERMANENT_MAILBOX
- } else if(nmstat.st_mtime > omstat.st_mtime) {
- if(nmstat.st_size)
+#endif /* PERMANENT_MAILBOX */
+ } else if (nmstat.st_mtime > omstat.st_mtime) {
+ if (nmstat.st_size)
newmail();
- getmailstatus(); /* might be too late ... */
+ getmailstatus();/* might be too late ... */
}
}
-newmail() {
+void
+newmail(void)
+{
/* produce a scroll of mail */
- register struct obj *obj;
- register struct monst *md;
- extern char plname[];
- extern struct obj *mksobj(), *addinv();
- extern struct monst *makemon();
- extern struct permonst pm_mail_daemon;
+ struct obj *obj;
+ struct monst *md;
obj = mksobj(SCR_MAIL);
- if(md = makemon(&pm_mail_daemon, u.ux, u.uy)) /* always succeeds */
- mdrush(md,0);
+ if (md = makemon(&pm_mail_daemon, u.ux, u.uy)) /* always succeeds */
+ mdrush(md, 0);
pline("\"Hello, %s! I have some mail for you.\"", plname);
- if(md) {
- if(dist(md->mx,md->my) > 2)
+ if (md) {
+ if (dist(md->mx, md->my) > 2)
pline("\"Catch!\"");
more();
/* let him disappear again */
- mdrush(md,1);
+ mdrush(md, 1);
mondead(md);
}
-
obj = addinv(obj);
- (void) identify(obj); /* set known and do prinv() */
+ (void) identify(obj); /* set known and do prinv() */
}
/* make md run through the cave */
-mdrush(md,away)
-register struct monst *md;
-boolean away;
+void
+mdrush(struct monst *md, boolean away)
{
- register int uroom = inroom(u.ux, u.uy);
- if(uroom >= 0) {
- register int tmp = rooms[uroom].fdoor;
- register int cnt = rooms[uroom].doorct;
- register int fx = u.ux, fy = u.uy;
- while(cnt--) {
- if(dist(fx,fy) < dist(doors[tmp].x, doors[tmp].y)){
+ int uroom = inroom(u.ux, u.uy);
+ if (uroom >= 0) {
+ int tmp = rooms[uroom].fdoor;
+ int cnt = rooms[uroom].doorct;
+ int fx = u.ux, fy = u.uy;
+ while (cnt--) {
+ if (dist(fx, fy) < dist(doors[tmp].x, doors[tmp].y)) {
fx = doors[tmp].x;
fy = doors[tmp].y;
}
tmp++;
}
tmp_at(-1, md->data->mlet); /* open call */
- if(away) { /* interchange origin and destination */
+ if (away) { /* interchange origin and destination */
unpmon(md);
- tmp = fx; fx = md->mx; md->mx = tmp;
- tmp = fy; fy = md->my; md->my = tmp;
+ tmp = fx;
+ fx = md->mx;
+ md->mx = tmp;
+ tmp = fy;
+ fy = md->my;
+ md->my = tmp;
}
- while(fx != md->mx || fy != md->my) {
- register int dx,dy,nfx = fx,nfy = fy,d1,d2;
-
- tmp_at(fx,fy);
- d1 = DIST(fx,fy,md->mx,md->my);
- for(dx = -1; dx <= 1; dx++) for(dy = -1; dy <= 1; dy++)
- if(dx || dy) {
- d2 = DIST(fx+dx,fy+dy,md->mx,md->my);
- if(d2 < d1) {
- d1 = d2;
- nfx = fx+dx;
- nfy = fy+dy;
- }
- }
- if(nfx != fx || nfy != fy) {
- fx = nfx;
- fy = nfy;
+ while (fx != md->mx || fy != md->my) {
+ int dx, dy, nfx = fx, nfy = fy, d1,
+ d2;
+
+ tmp_at(fx, fy);
+ d1 = DIST(fx, fy, md->mx, md->my);
+ for (dx = -1; dx <= 1; dx++)
+ for (dy = -1; dy <= 1; dy++)
+ if (dx || dy) {
+ d2 = DIST(fx + dx, fy + dy, md->mx, md->my);
+ if (d2 < d1) {
+ d1 = d2;
+ nfx = fx + dx;
+ nfy = fy + dy;
+ }
+ }
+ if (nfx != fx || nfy != fy) {
+ fx = nfx;
+ fy = nfy;
} else {
- if(!away) {
- md->mx = fx;
- md->my = fy;
- }
- break;
- }
+ if (!away) {
+ md->mx = fx;
+ md->my = fy;
+ }
+ break;
+ }
}
- tmp_at(-1,-1); /* close call */
+ tmp_at(-1, -1); /* close call */
}
- if(!away)
+ if (!away)
pmon(md);
}
-readmail() {
-#ifdef DEF_MAILREADER /* This implies that UNIX is defined */
- register char *mr = 0;
+void
+readmail(void)
+{
+#ifdef DEF_MAILREADER /* This implies that UNIX is defined */
+ char *mr = 0;
more();
- if(!(mr = getenv("MAILREADER")))
+ if (!(mr = getenv("MAILREADER")))
mr = DEF_MAILREADER;
- if(child(1)){
- execl(mr, mr, (char *) 0);
+ if (child(1)) {
+ execl(mr, mr, (char *)NULL);
exit(1);
}
-#else DEF_MAILREADER
+#else /* DEF_MAILREADER */
(void) page_file(mailbox, FALSE);
-#endif DEF_MAILREADER
- /* get new stat; not entirely correct: there is a small time
- window where we do not see new mail */
+#endif /* DEF_MAILREADER */
+ /*
+ * get new stat; not entirely correct: there is a small time window
+ * where we do not see new mail
+ */
getmailstatus();
}
-#endif MAIL
+#endif /* MAIL */
-regularize(s) /* normalize file name - we don't like ..'s or /'s */
-register char *s;
+/*
+ * normalize file name - we don't like ..'s or /'s
+ */
+void
+regularize(char *s)
{
- register char *lp;
+ char *lp;
- while((lp = index(s, '.')) || (lp = index(s, '/')))
+ while ((lp = strchr(s, '.')) || (lp = strchr(s, '/')))
*lp = '_';
}
git.ckatri.com / bsdgames-darwin.git / blobdiff