freebsd-dev/usr.sbin/sysinstall/dispatch.c
John Baldwin e364f0da42 Fix handling of the 'noError' variable. According to the code comments,
one can set the 'noError' variable to ignore any errors that occur for the
next command.  However, the code was only unsetting 'noError' when an error
actually occurred, so if you set 'noError', the next command completed ok,
and the command after that failed, the second command's failure would be
ignored.  This fixes this by performing the 'noError' check earlier and
then unsetting 'noError' after every command that is run.

Sponsored by:	The Weather Channel
2002-06-03 19:42:49 +00:00

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/*
* The new sysinstall program.
*
* This is probably the last program in the `sysinstall' line - the next
* generation being essentially a complete rewrite.
*
* $FreeBSD$
*
* 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 <ctype.h>
#include <errno.h>
#include <sys/signal.h>
#include <sys/fcntl.h>
#include "list.h"
static int dispatch_shutdown(dialogMenuItem *unused);
static int dispatch_systemExecute(dialogMenuItem *unused);
static int dispatch_msgConfirm(dialogMenuItem *unused);
static int dispatch_mediaClose(dialogMenuItem *unused);
static struct _word {
char *name;
int (*handler)(dialogMenuItem *self);
} resWords[] = {
{ "configAnonFTP", configAnonFTP },
{ "configRouter", configRouter },
{ "configInetd", configInetd },
{ "configNFSServer", configNFSServer },
{ "configNTP", configNTP },
{ "configPCNFSD", configPCNFSD },
{ "configPackages", configPackages },
{ "configUsers", configUsers },
{ "configXSetup", configXSetup },
{ "configXDesktop", configXDesktop },
{ "diskPartitionEditor", diskPartitionEditor },
{ "diskPartitionWrite", diskPartitionWrite },
{ "diskLabelEditor", diskLabelEditor },
{ "diskLabelCommit", diskLabelCommit },
{ "distReset", distReset },
{ "distSetCustom", distSetCustom },
{ "distUnsetCustom", distUnsetCustom },
{ "distSetDeveloper", distSetDeveloper },
{ "distSetXDeveloper", distSetXDeveloper },
{ "distSetKernDeveloper", distSetKernDeveloper },
{ "distSetUser", distSetUser },
{ "distSetXUser", distSetXUser },
{ "distSetMinimum", distSetMinimum },
{ "distSetEverything", distSetEverything },
{ "distSetSrc", distSetSrc },
{ "distSetXF86", distSetXF86 },
{ "distExtractAll", distExtractAll },
{ "docBrowser", docBrowser },
{ "docShowDocument", docShowDocument },
{ "installCommit", installCommit },
{ "installExpress", installExpress },
{ "installStandard", installStandard },
{ "installUpgrade", installUpgrade },
{ "installFixupBin", installFixupBin },
#ifndef X_AS_PKG
{ "installFixupXFree", installFixupXFree },
#endif
{ "installFixitHoloShell", installFixitHoloShell },
{ "installFixitCDROM", installFixitCDROM },
{ "installFixitFloppy", installFixitFloppy },
{ "installFilesystems", installFilesystems },
{ "installVarDefaults", installVarDefaults },
{ "loadConfig", dispatch_load_file },
{ "loadFloppyConfig", dispatch_load_floppy },
{ "mediaClose", dispatch_mediaClose },
{ "mediaSetCDROM", mediaSetCDROM },
{ "mediaSetFloppy", mediaSetFloppy },
{ "mediaSetDOS", mediaSetDOS },
{ "mediaSetTape", mediaSetTape },
{ "mediaSetFTP", mediaSetFTP },
{ "mediaSetFTPActive", mediaSetFTPActive },
{ "mediaSetFTPPassive", mediaSetFTPPassive },
{ "mediaSetHTTP", mediaSetHTTP },
{ "mediaSetUFS", mediaSetUFS },
{ "mediaSetNFS", mediaSetNFS },
{ "mediaSetFTPUserPass", mediaSetFTPUserPass },
{ "mediaSetCPIOVerbosity", mediaSetCPIOVerbosity },
{ "mediaGetType", mediaGetType },
{ "msgConfirm", dispatch_msgConfirm },
{ "optionsEditor", optionsEditor },
{ "packageAdd", packageAdd },
{ "addGroup", userAddGroup },
{ "addUser", userAddUser },
{ "shutdown", dispatch_shutdown },
{ "system", dispatch_systemExecute },
{ "dumpVariables", dump_variables },
{ "tcpMenuSelect", tcpMenuSelect },
{ NULL, NULL },
};
/*
* Helper routines for buffering data.
*
* We read an entire configuration into memory before executing it
* so that we are truely standalone and can do things like nuke the
* file or disk we're working on.
*/
typedef struct command_buffer_ {
qelement queue;
char * string;
} command_buffer;
static void
dispatch_free_command(command_buffer *item)
{
REMQUE(item);
free(item->string);
free(item);
}
static void
dispatch_free_all(qelement *head)
{
command_buffer *item;
while (!EMPTYQUE(*head)) {
item = (command_buffer *) head->q_forw;
dispatch_free_command(item);
}
}
static command_buffer *
dispatch_add_command(qelement *head, char *string)
{
command_buffer *new;
new = malloc(sizeof(command_buffer));
if (!new)
return NULL;
new->string = strdup(string);
INSQUEUE(new, head->q_back);
return new;
}
/*
* Command processing
*/
/* Just convenience */
static int
dispatch_shutdown(dialogMenuItem *unused)
{
systemShutdown(0);
return DITEM_FAILURE;
}
static int
dispatch_systemExecute(dialogMenuItem *unused)
{
char *cmd = variable_get(VAR_COMMAND);
if (cmd)
return systemExecute(cmd) ? DITEM_FAILURE : DITEM_SUCCESS;
else
msgDebug("_systemExecute: No command passed in `command' variable.\n");
return DITEM_FAILURE;
}
static int
dispatch_msgConfirm(dialogMenuItem *unused)
{
char *msg = variable_get(VAR_COMMAND);
if (msg) {
msgConfirm("%s", msg);
return DITEM_SUCCESS;
}
msgDebug("_msgConfirm: No message passed in `command' variable.\n");
return DITEM_FAILURE;
}
static int
dispatch_mediaClose(dialogMenuItem *unused)
{
mediaClose();
return DITEM_SUCCESS;
}
static int
call_possible_resword(char *name, dialogMenuItem *value, int *status)
{
int i, rval;
rval = 0;
for (i = 0; resWords[i].name; i++) {
if (!strcmp(name, resWords[i].name)) {
*status = resWords[i].handler(value);
rval = 1;
break;
}
}
return rval;
}
/* For a given string, call it or spit out an undefined command diagnostic */
int
dispatchCommand(char *str)
{
int i;
char *cp;
if (!str || !*str) {
msgConfirm("Null or zero-length string passed to dispatchCommand");
return DITEM_FAILURE;
}
/* If it's got a newline, trim it */
if ((cp = index(str, '\n')) != NULL)
*cp = '\0';
/* If it's got a `=' sign in there, assume it's a variable setting */
if (index(str, '=')) {
if (isDebug())
msgDebug("dispatch: setting variable `%s'\n", str);
variable_set(str, 0);
i = DITEM_SUCCESS;
}
else {
/* A command might be a pathname if it's encoded in argv[0], which
we also support */
if ((cp = rindex(str, '/')) != NULL)
str = cp + 1;
if (isDebug())
msgDebug("dispatch: calling resword `%s'\n", str);
if (!call_possible_resword(str, NULL, &i)) {
msgNotify("Warning: No such command ``%s''", str);
i = DITEM_FAILURE;
}
/*
* Allow a user to prefix a command with "noError" to cause
* us to ignore any errors for that one command.
*/
if (i != DITEM_SUCCESS && variable_get(VAR_NO_ERROR))
i = DITEM_SUCCESS;
variable_unset(VAR_NO_ERROR);
}
return i;
}
/*
* File processing
*/
static qelement *
dispatch_load_fp(FILE *fp)
{
qelement *head;
char buf[BUFSIZ], *cp;
head = malloc(sizeof(qelement));
if (!head)
return NULL;
INITQUE(*head);
while (fgets(buf, sizeof buf, fp)) {
if ((cp = strchr(buf, '\n')) != NULL)
*cp = '\0';
if (*buf == '\0' || *buf == '#')
continue;
if (!dispatch_add_command(head, buf))
return NULL;
}
return head;
}
static int
dispatch_execute(qelement *head)
{
int result = DITEM_SUCCESS;
command_buffer *item;
char *old_interactive;
if (!head)
return result | DITEM_FAILURE;
old_interactive = variable_get(VAR_NONINTERACTIVE);
if (old_interactive)
old_interactive = strdup(old_interactive); /* save copy */
/* Hint to others that we're running from a script, should they care */
variable_set2(VAR_NONINTERACTIVE, "yes", 0);
while (!EMPTYQUE(*head)) {
item = (command_buffer *) head->q_forw;
if (DITEM_STATUS(dispatchCommand(item->string)) != DITEM_SUCCESS) {
msgConfirm("Command `%s' failed - rest of script aborted.\n",
item->string);
result |= DITEM_FAILURE;
break;
}
dispatch_free_command(item);
}
dispatch_free_all(head);
if (!old_interactive)
variable_unset(VAR_NONINTERACTIVE);
else {
variable_set2(VAR_NONINTERACTIVE, old_interactive, 0);
free(old_interactive);
}
return result;
}
int
dispatch_load_file_int(int quiet)
{
FILE *fp;
char *cp;
int i;
qelement *list;
static const char *names[] = {
"install.cfg",
"/stand/install.cfg",
"/tmp/install.cfg",
NULL
};
fp = NULL;
cp = variable_get(VAR_CONFIG_FILE);
if (!cp) {
for (i = 0; names[i]; i++)
if ((fp = fopen(names[i], "r")) != NULL)
break;
} else
fp = fopen(cp, "r");
if (!fp) {
if (!quiet)
msgConfirm("Unable to open %s: %s", cp, strerror(errno));
return DITEM_FAILURE;
}
list = dispatch_load_fp(fp);
fclose(fp);
return dispatch_execute(list);
}
int
dispatch_load_file(dialogMenuItem *self)
{
return dispatch_load_file_int(FALSE);
}
int
dispatch_load_floppy(dialogMenuItem *self)
{
int what = DITEM_SUCCESS;
extern char *distWanted;
char *cp;
FILE *fp;
qelement *list;
mediaClose();
cp = variable_get_value(VAR_INSTALL_CFG,
"Specify the name of a configuration file\n"
"residing on a MSDOS or UFS floppy.", 0);
if (!cp || !*cp) {
variable_unset(VAR_INSTALL_CFG);
what |= DITEM_FAILURE;
return what;
}
distWanted = cp;
/* Try to open the floppy drive */
if (DITEM_STATUS(mediaSetFloppy(NULL)) == DITEM_FAILURE) {
msgConfirm("Unable to set media device to floppy.");
what |= DITEM_FAILURE;
mediaClose();
return what;
}
if (!DEVICE_INIT(mediaDevice)) {
msgConfirm("Unable to mount floppy filesystem.");
what |= DITEM_FAILURE;
mediaClose();
return what;
}
fp = DEVICE_GET(mediaDevice, cp, TRUE);
if (fp) {
list = dispatch_load_fp(fp);
fclose(fp);
mediaClose();
what |= dispatch_execute(list);
}
else {
if (!variable_get(VAR_NO_ERROR))
msgConfirm("Configuration file '%s' not found.", cp);
variable_unset(VAR_INSTALL_CFG);
what |= DITEM_FAILURE;
mediaClose();
}
return what;
}