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Patch from Tim Riker to allow tty* in inittab if the tty

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actually exists -- serial console is not the issue...
This commit is contained in:
Eric Andersen 2002-07-29 06:39:58 +00:00
parent aead70b4d1
commit 3bc2b206b0
2 changed files with 16 additions and 46 deletions
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3
Changelog
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@ -33,7 +33,8 @@
uClibc, fix route crashe 'route add', fix warnings compile
networking and pwd_grp applets
* Tim Riker <Tim@Rikers.org>
-- fix and shrink uuencode
-- fix and shrink uuencode
-- allow tty* in inittab if exist, serial console is not the issue
-Erik Andersen, --not yet released--

59
init/init.c
View File

@ -159,13 +159,10 @@ struct init_action {
/* Static variables */
static struct init_action *init_action_list = NULL;
static char *secondConsole = VC_2;
static char *thirdConsole = VC_3;
static char *fourthConsole = VC_4;
static char *log = VC_5;
static int kernelVersion = 0;
static char termType[32] = "TERM=linux";
static char console[32] = _PATH_CONSOLE;
static char *log = VC_5;
static sig_atomic_t got_cont = 0;
static const int LOG = 0x1;
static const int CONSOLE = 0x2;
@ -223,15 +220,9 @@ static void message(int device, char *fmt, ...)
/* Take full control of the log tty, and never close it.
* It's mine, all mine! Muhahahaha! */
if (log_fd < 0) {
if (log == NULL) {
/* don't even try to log, because there is no such console */
log_fd = -2;
/* log to main console instead */
device = CONSOLE;
} else if ((log_fd = device_open(log, O_RDWR|O_NDELAY)) < 0) {
if ((log_fd = device_open(log, O_RDWR|O_NDELAY)) < 0) {
log_fd = -2;
fprintf(stderr, "Bummer, can't write to log on %s!\n", log);
log = NULL;
device = CONSOLE;
}
}
@ -381,19 +372,12 @@ static void console_init(void)
/* Perhaps we should panic here? */
safe_strncpy(console, "/dev/null", sizeof(console));
} else {
/* check for serial console and disable logging to tty5 &
* running a shell to tty2-4 */
/* check for serial console */
if (ioctl(0, TIOCGSERIAL, &sr) == 0) {
log = NULL;
secondConsole = NULL;
thirdConsole = NULL;
fourthConsole = NULL;
/* Force the TERM setting to vt102 for serial console --
* iff TERM is set to linux (the default) */
* if TERM is set to linux (the default) */
if (strcmp( termType, "TERM=linux" ) == 0)
safe_strncpy(termType, "TERM=vt102", sizeof(termType));
message(LOG | CONSOLE,
"\rserial console detected. Disabling virtual terminals.\n");
}
close(fd);
}
@ -802,9 +786,7 @@ static void halt_signal(int sig)
/* Seems the s390 console is Wierd(tm). */
"\rThe system is halted. You may reboot now.\n"
#else
/* secondConsole is NULL for a serial console */
"\rThe system is halted. Press %s or turn off power\n",
(secondConsole == NULL)? "Reset" : "CTRL-ALT-DEL"
"\rThe system is halted. Press Reset or turn off power\n"
#endif
);
sync();
@ -865,12 +847,8 @@ static void new_init_action(int action, char *command, char *cons)
if (*cons == '\0')
cons = console;
/* If BusyBox detects that a serial console is in use, then entries
* not refering to the console or null devices will _not_ be run.
* The exception to this rule is the null device.
*/
if (secondConsole == NULL && strcmp(cons, console)
&& strcmp(cons, "/dev/null"))
/* do not run entries if console device is not available */
if (access(cons, R_OK|W_OK))
return;
if (strcmp(cons, "/dev/null") == 0 && (action & ASKFIRST))
return;
@ -944,17 +922,11 @@ static void parse_inittab(void)
#endif
/* Prepare to restart init when a HUP is received */
new_init_action(RESTART, "/sbin/init", console);
/* Askfirst shell on tty1 */
/* Askfirst shell on tty1-4 */
new_init_action(ASKFIRST, LOGIN_SHELL, console);
/* Askfirst shell on tty2 */
if (secondConsole != NULL)
new_init_action(ASKFIRST, LOGIN_SHELL, secondConsole);
/* Askfirst shell on tty3 */
if (thirdConsole != NULL)
new_init_action(ASKFIRST, LOGIN_SHELL, thirdConsole);
/* Askfirst shell on tty4 */
if (fourthConsole != NULL)
new_init_action(ASKFIRST, LOGIN_SHELL, fourthConsole);
new_init_action(ASKFIRST, LOGIN_SHELL, VC_2);
new_init_action(ASKFIRST, LOGIN_SHELL, VC_3);
new_init_action(ASKFIRST, LOGIN_SHELL, VC_4);
/* sysinit */
new_init_action(SYSINIT, INIT_SCRIPT, console);
@ -1113,12 +1085,9 @@ extern int init_main(int argc, char **argv)
if (argc > 1 && (!strcmp(argv[1], "single") ||
!strcmp(argv[1], "-s") || !strcmp(argv[1], "1"))) {
/* Ask first then start a shell on tty2-4 */
if (secondConsole != NULL)
new_init_action(ASKFIRST, LOGIN_SHELL, secondConsole);
if (thirdConsole != NULL)
new_init_action(ASKFIRST, LOGIN_SHELL, thirdConsole);
if (fourthConsole != NULL)
new_init_action(ASKFIRST, LOGIN_SHELL, fourthConsole);
new_init_action(ASKFIRST, LOGIN_SHELL, VC_2);
new_init_action(ASKFIRST, LOGIN_SHELL, VC_3);
new_init_action(ASKFIRST, LOGIN_SHELL, VC_4);
/* Start a shell on tty1 */
new_init_action(RESPAWN, LOGIN_SHELL, console);
} else {