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[bsdgames-darwin.git] / larn / signal.c

diff --git a/larn/signal.c b/larn/signal.c
index 3b4e2f396ddaaec588ddc8e10c14370a6291980e..42493424a6764d3251359e1680ec6eb7515920d0 100644 (file)
--- a/larn/signal.c
+++ b/larn/signal.c
@@ -1,86 +1,142 @@
+/*     $NetBSD: signal.c,v 1.8 2004/01/27 20:30:30 jsm Exp $   */
+
+/* "Larn is copyrighted 1986 by Noah Morgan.\n" */
+
+#include <sys/cdefs.h>
 #ifndef lint
-static char rcsid[] = "$NetBSD: signal.c,v 1.5 1995/12/21 11:27:51 mycroft Exp $";
-#endif /* not lint */
+__RCSID("$NetBSD: signal.c,v 1.8 2004/01/27 20:30:30 jsm Exp $");
+#endif /* not lint */
 
 #include <signal.h>
-#include "header.h"                    /* "Larn is copyrighted 1986 by Noah Morgan.\n" */
+#include <stdio.h>
 #include <string.h>
+#include <unistd.h>
+#include "header.h"
+#include "extern.h"
+
+static void s2choose(void);
+static void cntlc(int);
+static void sgam(int);
+static void tstop(int);
+static void sigpanic(int);
 
 #define BIT(a) (1<<((a)-1))
-extern char savefilename[],wizard,predostuff,nosignal;
-static s2choose()      /* text to be displayed if ^C during intro screen */
-       {
-       cursor(1,24); lprcat("Press "); setbold(); lprcat("return"); resetbold();
-       lprcat(" to continue: ");   lflush(); 
-       }
 
 static void
-cntlc()        /* what to do for a ^C */
-       {
-       if (nosignal) return;   /* don't do anything if inhibited */
-       signal(SIGQUIT,SIG_IGN);        signal(SIGINT,SIG_IGN);
-       quit(); if (predostuff==1) s2choose(); else showplayer();
+s2choose()
+{                              /* text to be displayed if ^C during intro
+                                * screen */
+       cursor(1, 24);
+       lprcat("Press ");
+       setbold();
+       lprcat("return");
+       resetbold();
+       lprcat(" to continue: ");
+       lflush();
+}
+
+static void
+cntlc(n)
+       int n;
+{                              /* what to do for a ^C */
+       if (nosignal)
+               return;         /* don't do anything if inhibited */
+       signal(SIGQUIT, SIG_IGN);
+       signal(SIGINT, SIG_IGN);
+       quit();
+       if (predostuff == 1)
+               s2choose();
+       else
+               showplayer();
        lflush();
-       signal(SIGQUIT,cntlc);  signal(SIGINT,cntlc);
-       }
+       signal(SIGQUIT, cntlc);
+       signal(SIGINT, cntlc);
+}
 
 /*
  *     subroutine to save the game if a hangup signal
  */
 static void
-sgam()
-       {
-       savegame(savefilename);  wizard=1;  died(-257); /* hangup signal */
-       }
+sgam(n)
+       int n;
+{
+       savegame(savefilename);
+       wizard = 1;
+       died(-257);             /* hangup signal */
+}
 
 #ifdef SIGTSTP
 static void
-tstop() /* control Y   */
-       {
-       if (nosignal)   return;  /* nothing if inhibited */
-       lcreat((char*)0);  clearvt100();        lflush();         signal(SIGTSTP,SIG_DFL);
+tstop(n)
+       int n;
+{                              /* control Y     */
+       if (nosignal)
+               return;         /* nothing if inhibited */
+       lcreat((char *) 0);
+       clearvt100();
+       lflush();
+       signal(SIGTSTP, SIG_DFL);
 #ifdef SIGVTALRM
-       /* looks like BSD4.2 or higher - must clr mask for signal to take effect*/
-       sigsetmask(sigblock(0)& ~BIT(SIGTSTP));
+       /*
+        * looks like BSD4.2 or higher - must clr mask for signal to take
+        * effect
+        */
+       sigsetmask(sigblock(0) & ~BIT(SIGTSTP));
 #endif
-       kill(getpid(),SIGTSTP);
+       kill(getpid(), SIGTSTP);
 
-       setupvt100();  signal(SIGTSTP,tstop);
-       if (predostuff==1) s2choose(); else drawscreen();
-       showplayer();   lflush();
-       }
-#endif SIGTSTP
+       setupvt100();
+       signal(SIGTSTP, tstop);
+       if (predostuff == 1)
+               s2choose();
+       else
+               drawscreen();
+       showplayer();
+       lflush();
+}
+#endif /* SIGTSTP */
 
 /*
  *     subroutine to issue the needed signal traps  called from main()
  */
-static void sigpanic();
+void
 sigsetup()
-       {
-       signal(SIGQUIT, cntlc);                 signal(SIGINT,  cntlc); 
-       signal(SIGKILL, SIG_IGN);               signal(SIGHUP,  sgam);
-       signal(SIGILL,  sigpanic);              signal(SIGTRAP, sigpanic);
-       signal(SIGIOT,  sigpanic);              signal(SIGEMT,  sigpanic);
-       signal(SIGFPE,  sigpanic);              signal(SIGBUS,  sigpanic);
-       signal(SIGSEGV, sigpanic);              signal(SIGSYS,  sigpanic);
-       signal(SIGPIPE, sigpanic);              signal(SIGTERM, sigpanic);
+{
+       signal(SIGQUIT, cntlc);
+       signal(SIGINT, cntlc);
+       signal(SIGKILL, SIG_IGN);
+       signal(SIGHUP, sgam);
+       signal(SIGILL, sigpanic);
+       signal(SIGTRAP, sigpanic);
+       signal(SIGIOT, sigpanic);
+       signal(SIGEMT, sigpanic);
+       signal(SIGFPE, sigpanic);
+       signal(SIGBUS, sigpanic);
+       signal(SIGSEGV, sigpanic);
+       signal(SIGSYS, sigpanic);
+       signal(SIGPIPE, sigpanic);
+       signal(SIGTERM, sigpanic);
 #ifdef SIGTSTP
-       signal(SIGTSTP,tstop);          signal(SIGSTOP,tstop);
-#endif SIGTSTP
-       }
+       signal(SIGTSTP, tstop);
+       signal(SIGSTOP, tstop);
+#endif /* SIGTSTP */
+}
 
 /*
  *     routine to process a fatal error signal
  */
 static void
 sigpanic(sig)
-       int sig;
-       {
-       char buf[128];
-       signal(sig,SIG_DFL);
-       sprintf(buf,"\nLarn - Panic! Signal %d received [SIG%s]",sig,sys_signame[sig]);
-       write(2,buf,strlen(buf));  sleep(2);
+       int             sig;
+{
+       char            buf[128];
+       signal(sig, SIG_DFL);
+       snprintf(buf, sizeof(buf),
+           "\nLarn - Panic! Signal %d received [SIG%s]", sig,
+           sys_signame[sig]);
+       write(2, buf, strlen(buf));
+       sleep(2);
        sncbr();
-       savegame(savefilename); 
-       kill(getpid(),sig); /* this will terminate us */
-       }
+       savegame(savefilename);
+       kill(getpid(), sig);    /* this will terminate us */
+}