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/*
* The new sysinstall program.
*
* This is probably the last attempt in the `sysinstall' line, the next
* generation being slated for what's essentially a complete rewrite.
*
* $Id: main.c,v 1.49 1998/03/10 13:42:02 jkh Exp $
*
* Copyright (c) 1995
* Jordan Hubbard. 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,
* verbatim and that no modifications are made prior to this
* point in the file.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``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 JORDAN HUBBARD OR HIS PETS 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, LIFE 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 "sysinstall.h"
#include <sys/signal.h>
#include <sys/fcntl.h>
static void
screech(int sig)
{
msgDebug("\007Signal %d caught! That's bad!\n", sig);
longjmp(BailOut, sig);
}
int
main(int argc, char **argv)
{
int choice, scroll, curr, max, status;
/* Catch fatal signals and complain about them if running as init */
if (getpid() == 1) {
signal(SIGBUS, screech);
signal(SIGSEGV, screech);
}
/* We don't work too well when running as non-root anymore */
if (geteuid() != 0) {
fprintf(stderr, "Error: This utility should only be run as root.\n");
return 1;
}
/* Set up whatever things need setting up */
systemInitialize(argc, argv);
/* Set default flag and variable values */
installVarDefaults(NULL);
/* only when multi-user is it reasonable to do this here */
if (!RunningAsInit)
installEnvironment();
if (argc > 1 && !strcmp(argv[1], "-fake")) {
variable_set2(VAR_DEBUG, "YES");
Fake = TRUE;
msgConfirm("I'll be just faking it from here on out, OK?");
}
/* Try to preserve our scroll-back buffer */
if (OnVTY) {
for (curr = 0; curr < 25; curr++)
putchar('\n');
}
/* Move stderr aside */
if (DebugFD)
dup2(DebugFD, 2);
/* Probe for all relevant devices on the system */
deviceGetAll();
/* First, see if we have any arguments to process (and argv[0] counts if it's not "sysinstall") */
if (!RunningAsInit) {
int i, start_arg;
if (!strstr(argv[0], "sysinstall"))
start_arg = 0;
else if (Fake)
start_arg = 2;
else
start_arg = 1;
for (i = start_arg; i < argc; i++) {
if (DITEM_STATUS(dispatchCommand(argv[i])) != DITEM_SUCCESS)
systemShutdown(1);
}
if (argc > start_arg)
systemShutdown(0);
}
else
dispatch_load_file_int(TRUE);
status = setjmp(BailOut);
if (status) {
msgConfirm("A signal %d was caught - I'm saving what I can and shutting\n"
"If you can reproduce the problem, please turn Debug on in\n"
"the Options menu for the extra information it provides in\n"
"debugging problems like this.", status);
systemShutdown(status);
}
/* Begin user dialog at outer menu */
dialog_clear();
while (1) {
choice = scroll = curr = max = 0;
dmenuOpen(&MenuInitial, &choice, &scroll, &curr, &max, TRUE);
if (getpid() != 1
#ifdef __alpha__
|| !msgYesNo("Are you sure you wish to exit? The system will halt.")
#else
|| !msgYesNo("Are you sure you wish to exit? The system will reboot\n"
"(be sure to remove any floppies from the drives).")
#endif
)
break;
}
/* Say goodnight, Gracie */
systemShutdown(0);
return 0; /* We should never get here */
}
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