--- README.swsusp
+++ README.swsusp	2005-10-19 13:52:54.000000000 +0200
@@ -0,0 +1,5 @@
+ This version of sysvinit contains a patch for supporting the
+ Software suspend feature for Linux.
+ In order to really use it, you need to patch your kernel
+ with Gabor Kuti's software-suspend patch:
+ http://falcon.sch.bme.hu/~seasons/linux/
--- man/halt.8
+++ man/halt.8	2005-10-19 13:52:54.000000000 +0200
@@ -4,7 +4,7 @@
 .\"}}}
 .\"{{{  Name
 .SH NAME
-halt, reboot, poweroff \- stop the system.
+halt, reboot, poweroff, suspend \- stop the system.
 .\"}}}
 .\"{{{  Synopsis
 .SH SYNOPSIS
@@ -31,12 +31,16 @@
 .RB [ \-f ]
 .RB [ \-i ]
 .RB [ \-h ]
+.br
+.B /sbin/swsusp
+.RB [ \-w ]
+.RB [ \-d ]
 .\"}}}
 .\"{{{  Description
 .SH DESCRIPTION
 \fBHalt\fP notes that the system is being brought down in the file
-\fI/var/log/wtmp\fP, and then either tells the kernel to halt, reboot or
-poweroff the system.
+\fI/var/log/wtmp\fP, and then either tells the kernel to halt, reboot, poweroff,
+or suspend the system.
 .PP
 If \fBhalt\fP or \fBreboot\fP is called when the system is
 \fInot\fP in runlevel \fB0\fP or \fB6\fP, in other words when it's running
--- man/inittab.5
+++ man/inittab.5	2005-10-19 13:52:54.000000000 +0200
@@ -137,6 +137,13 @@
 the external UPS is almost empty and the power is failing (provided that the
 external UPS and the monitoring process are able to detect this condition).
 .\"}}}
+.\"{{{  resume
+.IP \fBresume\fP
+This process will be executed when \fBinit\fP is told by the kernel that
+Software Suspend has resumed the machine. This way you may specify userland
+programs what can restore hardware states the kernel cannot (for example
+svgatextmode and hdparm).
+.\"}}}
 .\"{{{  ctrlaltdel
 .IP \fBctrlaltdel\fP
 The process will be executed when \fBinit\fP receives the SIGINT signal.
--- man/shutdown.8
+++ man/shutdown.8	2005-10-19 13:52:54.000000000 +0200
@@ -11,7 +11,7 @@
 .B /sbin/shutdown
 .RB [ \-t
 .IR sec ]
-.RB [ \-arkhncfFHP ]
+.RB [ \-arkhzncfFHP ]
 .I time
 .RI [ warning-message ]
 .\"}}}
@@ -71,6 +71,12 @@
 The use of this option is discouraged, and its results are not always what
 you'd expect.
 .\"}}}
+.\"{{{  -z
+.IP \fB\-z\fP
+Shutdown using software suspend. Using this option will not kill processes
+but pass the control to the kernel what makes the proper steps to stop and
+save processes to swaps. 'Software\ Suspend' needs to be compiled in.
+.\"}}}
 .\"{{{  -f
 .IP \fB\-f\fP
 Skip fsck on reboot.
--- man/swsusp.8
+++ man/swsusp.8	2005-10-19 13:52:54.000000000 +0200
@@ -0,0 +1 @@
+.so man8/halt.8
--- src/Makefile
+++ src/Makefile	2005-10-19 13:54:38.000000000 +0200
@@ -52,7 +52,7 @@
 SBIN	+= sulogin
 USRBIN	+= utmpdump
 MAN1	+= mountpoint.1
-MAN8	+= sulogin.8
+MAN8	+= sulogin.8 swsusp.8
 endif
 
 BIN_OWNER	= root
@@ -131,6 +131,7 @@
 		for i in $(USRBIN); do \
 			$(INSTALL) -m 755 $$i $(ROOT)/usr/bin/; \
 		done
+		ln -sf halt	$(ROOT)/sbin/swsusp
 		ln -sf halt	$(ROOT)/sbin/reboot
 		ln -sf halt	$(ROOT)/sbin/poweroff
 		ln -sf init	$(ROOT)/sbin/telinit
--- src/dowall.c
+++ src/dowall.c	2005-10-19 13:52:54.000000000 +0200
@@ -27,6 +27,7 @@
 #include <fcntl.h>
 #include <signal.h>
 #include <setjmp.h>
+#include <sched.h>
 
 static sigjmp_buf jbuf;
 
@@ -214,6 +215,7 @@
 		if (tp != NULL) fclose(tp);
 	}
 	endutent();
+	sched_yield();
 
 	exit(0);
 }
--- src/halt.c
+++ src/halt.c	2005-10-19 13:52:54.000000000 +0200
@@ -172,6 +172,7 @@
 	int do_ifdown = 0;
 	int do_hddown = 0;
 	int do_poweroff = 0;
+	int do_swsusp = 0;
 	int c;
 	char *tm = NULL;
 
@@ -185,6 +186,7 @@
 
 	if (!strcmp(progname, "reboot")) do_reboot = 1;
 	if (!strcmp(progname, "poweroff")) do_poweroff = 1;
+	if (!strcmp(progname, "swsusp")) do_swsusp = 1;
 
 	/*
 	 *	Get flags
@@ -220,6 +222,14 @@
 				usage();
 		}
 	 }
+	if(do_swsusp) { /* This implies some flags.. */
+		do_sync = 0;
+		do_ifdown = 0;
+		do_poweroff = 0;
+		do_reboot = 0;
+		do_hard = 1;
+	}
+
 	if (argc != optind) usage();
 
 	if (geteuid() != 0) {
@@ -264,6 +274,8 @@
 
 	if (do_reboot) {
 		init_reboot(BMAGIC_REBOOT);
+	} else if(do_swsusp) {
+		init_reboot(BMAGIC_SWSUSP);
 	} else {
 		/*
 		 *	Turn on hard reboot, CTRL-ALT-DEL will reboot now
--- src/init.c
+++ src/init.c	2005-10-19 13:52:54.000000000 +0200
@@ -85,6 +85,10 @@
 #  define CBAUDEX	0
 #endif
 
+#ifndef SIGRESUME
+#  define SIGRESUME SIGXCPU
+#endif
+
 /* Set a signal handler. */
 #define SETSIG(sa, sig, fun, flags) \
 		do { \
@@ -143,7 +147,7 @@
 /* Macro to see if this is a special action */
 #define ISPOWER(i) ((i) == POWERWAIT || (i) == POWERFAIL || \
 		    (i) == POWEROKWAIT || (i) == POWERFAILNOW || \
-		    (i) == CTRLALTDEL)
+		    (i) == CTRLALTDEL || (i) == RESUME)
 
 /* ascii values for the `action' field. */
 struct actions {
@@ -165,6 +169,7 @@
   { "initdefault", INITDEFAULT	},
   { "sysinit",	   SYSINIT	},
   { "kbrequest",   KBREQUEST    },
+  { "resume",      RESUME       },
   { NULL,	   0		},
 };
 
@@ -1129,6 +1134,7 @@
 		case POWERWAIT:
 		case POWERFAILNOW:
 		case POWEROKWAIT:
+		case RESUME:
 		case CTRLALTDEL:
 			if (!(ch->flags & XECUTED)) ch->flags |= WAITING;
 		case KBREQUEST:
@@ -1822,6 +1828,22 @@
 }
 
 /*
+ *	Start up userland hwstate restoring.
+ */
+void do_hwstate_restore(void)
+{
+	CHILD *ch;
+
+	/*
+	 *	Tell resume entries to start up
+	 */
+	for (ch = family; ch; ch = ch->next) {
+		if (ch->action == RESUME)
+			ch->flags &= ~XECUTED;
+	}
+}
+
+/*
  *	Start up powerfail entries.
  */
 static
@@ -2318,6 +2340,14 @@
   int		fd;
   char		c;
 
+  if (ISMEMBER(got_signals, SIGRESUME)) {
+#if DEBUG
+	log(L_VB, "got SIGRESUME");
+#endif
+	do_hwstate_restore();
+	DELSET(got_signals, SIGRESUME);
+  }
+  
   if (ISMEMBER(got_signals, SIGPWR)) {
 	INITDBG(L_VB, "got SIGPWR");
 	/* See _what_ kind of SIGPWR this is. */
@@ -2474,6 +2504,7 @@
   SETSIG(sa, SIGPWR,   signal_handler, 0);
   SETSIG(sa, SIGWINCH, signal_handler, 0);
   SETSIG(sa, SIGUSR1,  signal_handler, 0);
+  SETSIG(sa, SIGRESUME,signal_handler, 0);
   SETSIG(sa, SIGSTOP,  stop_handler, SA_RESTART);
   SETSIG(sa, SIGTSTP,  stop_handler, SA_RESTART);
   SETSIG(sa, SIGCONT,  cont_handler, SA_RESTART);
--- src/init.h
+++ src/init.h	2005-10-19 13:52:54.000000000 +0200
@@ -53,6 +53,7 @@
 #define SYSINIT		       13
 #define POWERFAILNOW           14
 #define KBREQUEST               15
+#define RESUME                 16
 
 /* Information about a process in the in-core inittab */
 typedef struct _child_ {
--- src/reboot.h
+++ src/reboot.h	2005-10-19 13:52:54.000000000 +0200
@@ -32,5 +32,9 @@
 #  define BMAGIC_POWEROFF	BMAGIC_HALT
 #endif
 
+#ifndef BMAGIC_SWSUSP
+#  define BMAGIC_SWSUSP		0xd000fce2
+#endif
+
 #define init_reboot(magic)	reboot(magic)
 
--- src/shutdown.c
+++ src/shutdown.c	2005-10-19 13:52:54.000000000 +0200
@@ -1,10 +1,11 @@
 /*
  * shutdown.c	Shut the system down.
  *
- * Usage:	shutdown [-krhfnc] time [warning message]
+ * Usage:	shutdown [-krhzfnc] time [warning message]
  *		  -k: don't really shutdown, only warn.
  *		  -r: reboot after shutdown.
  *		  -h: halt after shutdown.
+ *		  -z: shutdown using software suspend.
  *		  -f: do a 'fast' reboot (skip fsck).
  *		  -F: Force fsck on reboot.
  *		  -n: do not go through init but do it ourselves.
@@ -113,6 +114,7 @@
 	"\t\t  -f:      do a 'fast' reboot (skip fsck).\n"
 	"\t\t  -F:      Force fsck on reboot.\n"
 	"\t\t  -n:      do not go through \"init\" but go down real fast.\n"
+	"\t\t  -z:      shutdown using software suspend.\n"
 	"\t\t  -c:      cancel a running shutdown.\n"
 	"\t\t  -t secs: delay between warning and kill signal.\n"
 	"\t\t  ** the \"time\" argument is mandatory! (try \"now\") **\n");
@@ -271,6 +273,7 @@
 void fastdown()
 {
 	int do_halt = (down_level[0] == '0');
+	int do_swsusp = (down_level[0] == 'z');
 	int i;
 #if 0
 	char cmd[128];
@@ -293,6 +296,8 @@
 			script = REBOOTSCRIPT2;
 	}
 #endif
+	if(do_swsusp)
+		init_reboot(BMAGIC_SWSUSP);
 
 	/* First close all files. */
 	for(i = 0; i < 3; i++)
@@ -364,7 +369,9 @@
 	int	do_halt = (down_level[0] == '0');
 
 	/* Warn for the last time */
-	warn(0);
+	/* I don't want to mess up the later resumed screen */
+	if(down_level[0] != 'z')
+		warn(0);
 	if (dontshut) {
 		hardsleep(1);
 		stopit(0);
@@ -467,7 +474,7 @@
 	halttype = NULL;
 
 	/* Process the options. */
-	while((c = getopt(argc, argv, "HPacqkrhnfFyt:g:i:")) != EOF) {
+	while((c = getopt(argc, argv, "HPacqkrhnzfFyt:g:i:")) != EOF) {
   		switch(c) {
 			case 'H':
 				halttype = "HALT";
@@ -499,6 +506,9 @@
 			case 'n': /* Don't switch runlevels. */
 				doself = 1;
 				break;
+			case 'z': /* Shutdown using software suspend */
+				down_level[0] = 'z';
+				break;
 			case 't': /* Delay between TERM and KILL */
 				sltime = optarg;
 				break;
@@ -592,6 +602,18 @@
 	}
 	if (message[0]) strcat(message, "\r\n");
 
+	if(down_level[0] == 'z') {
+		doself = 1;
+		if(fastboot) {
+			fprintf(stderr, "shutdown: -f option ignored");
+			fastboot = 0;
+		}
+		if(forcefsck) {
+			fprintf(stderr, "shutdown: -F option ignored");
+			forcefsck = 0;
+		}
+	}
+
 	/* See if we want to run or cancel. */
 	if (cancel) {
 		if (pid <= 0) {
@@ -621,7 +643,8 @@
 	}
 
 	/* Extra check. */
-	if (doself && down_level[0] != '0' && down_level[0] != '6') {
+	if (doself && down_level[0] != '0' && down_level[0] != '6' &&
+	    down_level[0] != 'z') {
 		fprintf(stderr,
 		"shutdown: can use \"-n\" for halt or reboot only.\r\n");
 		exit(1);
@@ -638,6 +661,9 @@
 		case '1':
 			strcpy(newstate, "to maintenance mode");
 			break;
+		case 'z':
+			strcpy(newstate, "for system suspend");
+			break;
 		default:
 			sprintf(newstate, "to runlevel %s", down_level);
 			break;