int
command_boot(int argc, char *argv[])
{
struct preloaded_file *fp;
/*
* See if the user has specified an explicit kernel to boot.
*/
if ((argc > 1) && (argv[1][0] != '-')) {
/* XXX maybe we should discard everything and start again? */
if (file_findfile(NULL, NULL) != NULL) {
command_seterr("can't boot '%s', kernel module already loaded",
argv[1]);
return(CMD_ERROR);
}
/* find/load the kernel module */
if (file_loadkernel(argv[1], argc - 2, argv + 2) != 0)
return(CMD_ERROR);
/* we have consumed all arguments */
argc = 1;
}
/*
* See if there is a kernel module already loaded
*/
if (file_findfile(NULL, NULL) == NULL)
if (loadakernel(0, argc - 1, argv + 1))
/* we have consumed all arguments */
argc = 1;
/*
* Loaded anything yet?
*/
if ((fp = file_findfile(NULL, NULL)) == NULL) {
command_seterr("no bootable kernel");
return(CMD_ERROR);
}
/*
* If we were given arguments, discard any previous.
* XXX should we merge arguments? Hard to DWIM.
*/
if (argc > 1) {
if (fp->f_args != NULL)
free(fp->f_args);
fp->f_args = unargv(argc - 1, argv + 1);
}
/* Hook for platform-specific autoloading of modules */
if (archsw.arch_autoload() != 0)
return(CMD_ERROR);
/* Call the exec handler from the loader matching the kernel */
command_seterr("%s", strerror(file_formats[fp->f_loader]->l_exec(fp)));
return(CMD_ERROR);
}
int
autoboot(int timeout, char *prompt)
{
time_t when, otime, ntime;
int c, yes;
char *argv[2], *cp, *ep;
char *kernelname;
#ifdef BOOT_PROMPT_123
const char *seq = "123", *p = seq;
#endif
autoboot_tried = 1;
if (timeout == -1) {
timeout = 10;
/* try to get a delay from the environment */
if ((cp = getenv("autoboot_delay"))) {
timeout = strtol(cp, &ep, 0);
if (cp == ep)
timeout = 10; /* Unparseable? Set default! */
}
}
kernelname = getenv("kernelname");
if (kernelname == NULL) {
argv[0] = NULL;
loadakernel(0, 0, argv);
kernelname = getenv("kernelname");
if (kernelname == NULL) {
command_errmsg = "no valid kernel found";
return(CMD_ERROR);
}
}
if (timeout >= 0) {
otime = time(NULL);
when = otime + timeout; /* when to boot */
yes = 0;
#ifdef BOOT_PROMPT_123
printf("%s\n", (prompt == NULL) ? "Hit [Enter] to boot immediately, or "
"1 2 3 sequence for command prompt." : prompt);
#else
printf("%s\n", (prompt == NULL) ? "Hit [Enter] to boot immediately, or any other key for command prompt." : prompt);
#endif
for (;;) {
if (ischar()) {
c = getchar();
#ifdef BOOT_PROMPT_123
if ((c == '\r') || (c == '\n')) {
yes = 1;
break;
} else if (c != *p++)
p = seq;
if (*p == 0)
break;
#else
if ((c == '\r') || (c == '\n'))
yes = 1;
break;
#endif
}
ntime = time(NULL);
if (ntime >= when) {
yes = 1;
break;
}
if (ntime != otime) {
printf("\rBooting [%s] in %d second%s... ",
kernelname, (int)(when - ntime),
(when-ntime)==1?"":"s");
otime = ntime;
}
}
} else {
yes = 1;
}
if (yes)
printf("\rBooting [%s]... ", kernelname);
putchar('\n');
if (yes) {
argv[0] = "boot";
argv[1] = NULL;
return(command_boot(1, argv));
}
return(CMD_OK);
}
int
autoboot(int timeout, char *prompt)
{
time_t when, otime, ntime;
int c, yes;
char *argv[2], *cp, *ep;
char *kernelname;
autoboot_tried = 1;
if (timeout == -1) {
/* try to get a delay from the environment */
if ((cp = getenv("autoboot_delay"))) {
timeout = strtol(cp, &ep, 0);
if (cp == ep)
timeout = -1;
}
}
if (timeout == -1) /* all else fails */
timeout = 10;
kernelname = getenv("kernelname");
if (kernelname == NULL) {
argv[0] = NULL;
loadakernel(0, 0, argv);
kernelname = getenv("kernelname");
if (kernelname == NULL) {
command_seterr("no valid kernel found");
return(CMD_ERROR);
}
}
otime = time(NULL);
when = otime + timeout; /* when to boot */
yes = 0;
printf("%s\n", (prompt == NULL) ? "Hit [Enter] to boot immediately, or any other key for command prompt." : prompt);
for (;;) {
if (ischar()) {
c = getchar();
if ((c == '\r') || (c == '\n'))
yes = 1;
break;
}
ntime = time(NULL);
if (ntime >= when) {
yes = 1;
break;
}
if (ntime != otime) {
printf("\rBooting [%s] in %d second%s... ",
kernelname, (int)(when - ntime),
(when-ntime)==1?"":"s");
otime = ntime;
}
}
if (yes)
printf("\rBooting [%s]... ", kernelname);
putchar('\n');
if (yes) {
argv[0] = "boot";
argv[1] = NULL;
return(command_boot(1, argv));
}
return(CMD_OK);
}
static int
command_boot(int argc, char *argv[])
{
struct preloaded_file *fp;
char *local_module_path;
char *exported_module_path;
/*
* See if the user has specified an explicit kernel to boot.
*/
if ((argc > 1) && (argv[1][0] != '-')) {
/* XXX maybe we should discard everything and start again? */
if (file_findfile(NULL, NULL) != NULL) {
sprintf(command_errbuf, "can't boot '%s', kernel module already loaded", argv[1]);
return(CMD_ERROR);
}
/* find/load the kernel module */
if (mod_loadkld(argv[1], argc - 2, argv + 2) != 0)
return(CMD_ERROR);
/* we have consumed all arguments */
argc = 1;
}
/*
* See if there is a kernel module already loaded
*/
if (file_findfile(NULL, NULL) == NULL)
if (loadakernel(0, argc - 1, argv + 1))
/* we have consumed all arguments */
argc = 1;
/*
* Loaded anything yet?
*/
if ((fp = file_findfile(NULL, NULL)) == NULL) {
command_errmsg = "no bootable kernel";
return(CMD_ERROR);
}
/*
* If we were given arguments, discard any previous.
* XXX should we merge arguments? Hard to DWIM.
*/
if (argc > 1) {
if (fp->f_args != NULL)
free(fp->f_args);
fp->f_args = unargv(argc - 1, argv + 1);
}
/* Hook for platform-specific autoloading of modules */
if (archsw.arch_autoload() != 0)
return(CMD_ERROR);
/*
* Exec the kernel. We have to shift our exported_module_path
* (which has the correct /boot prefix for the kernel) over to
* module_path. If the exec fails we switch it back.
*/
exported_module_path = getenv("exported_module_path");
if (exported_module_path) {
exported_module_path = strdup(exported_module_path);
local_module_path = getenv("module_path");
if (local_module_path)
local_module_path = strdup(local_module_path);
setenv("module_path", exported_module_path, 1);
unsetenv("exported_module_path");
}
/* Call the exec handler from the loader matching the kernel */
file_formats[fp->f_loader]->l_exec(fp);
if (exported_module_path) {
if (local_module_path) {
setenv("module_path", local_module_path, 1);
free(local_module_path);
} else {
unsetenv("module_path");
}
setenv("exported_module_path", exported_module_path, 1);
free(exported_module_path);
}
return(CMD_ERROR);
}
