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This commit is contained in:
Eric Andersen 1999-10-19 00:27:50 +00:00
parent b0e9a709ba
commit abc7d597cb
3 changed files with 301 additions and 235 deletions
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2
chmod_chown_chgrp.c
View File

@ -71,7 +71,6 @@ int chmod_chown_chgrp_main(int argc, char **argv)
struct passwd *pwd; struct passwd *pwd;
int recursiveFlag=FALSE; int recursiveFlag=FALSE;
char *groupName; char *groupName;
mode_t andWithMode= S_ISVTX|S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
whichApp = (strcmp(*argv, "chown")==0)? CHOWN_APP : (strcmp(*argv, "chmod")==0)? CHMOD_APP : CHGRP_APP; whichApp = (strcmp(*argv, "chown")==0)? CHOWN_APP : (strcmp(*argv, "chmod")==0)? CHMOD_APP : CHGRP_APP;
@ -100,6 +99,7 @@ int chmod_chown_chgrp_main(int argc, char **argv)
if ( whichApp == CHMOD_APP ) { if ( whichApp == CHMOD_APP ) {
/* Find the specified modes */ /* Find the specified modes */
mode &= S_ISVTX|S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
if ( parse_mode(*argv, &mode) == FALSE ) { if ( parse_mode(*argv, &mode) == FALSE ) {
fprintf(stderr, "%s: Unknown mode: %s\n", invocationName, *argv); fprintf(stderr, "%s: Unknown mode: %s\n", invocationName, *argv);
exit( FALSE); exit( FALSE);

267
init.c
View File

@ -13,19 +13,21 @@
#include <sys/mount.h> #include <sys/mount.h>
#include <sys/reboot.h> #include <sys/reboot.h>
#include <sys/kdaemon.h> #include <sys/kdaemon.h>
#include <sys/swap.h>
#include <sys/sysmacros.h> #include <sys/sysmacros.h>
#include <linux/serial.h> /* for serial_struct */
#include <sys/vt.h> /* for vt_stat */
#include <sys/ioctl.h>
const char init_usage[] = "Used internally by the system."; static const char init_usage[] = "Used internally by the system.";
char console[16] = ""; static char console[16] = "";
const char * default_console = "/dev/tty1"; static const char* default_console = "/dev/tty2";
char * first_terminal = NULL; static char* first_terminal = NULL;
const char * second_terminal = "/dev/tty2"; static const char* second_terminal = "/dev/tty2";
const char log[] = "/dev/tty3"; static const char* log = "/dev/tty3";
char * term_ptr = NULL; static char* term_ptr = NULL;
static void static void
message(const char * terminal, const char * pattern, ...) message(const char* terminal, const char * pattern, ...)
{ {
int fd; int fd;
FILE * con = 0; FILE * con = 0;
@ -36,7 +38,8 @@ message(const char * terminal, const char * pattern, ...)
* has switched consoles, the open will get the new console. If we kept * has switched consoles, the open will get the new console. If we kept
* the console open, we'd always print to the same one. * the console open, we'd always print to the same one.
*/ */
if ( ((fd = open(terminal, O_WRONLY|O_NOCTTY)) < 0) if ( !terminal
|| ((fd = open(terminal, O_WRONLY|O_NOCTTY)) < 0)
|| ((con = fdopen(fd, "w")) == NULL) ) || ((con = fdopen(fd, "w")) == NULL) )
return; return;
@ -158,44 +161,59 @@ run(const char* program, const char* const* arguments,
static int static int
mem_total() mem_total()
{ {
char s[80]; char s[80];
char *p; char *p;
FILE *f; FILE *f;
const char pattern[]="MemTotal:"; const char pattern[]="MemTotal:";
f=fopen("/proc/meminfo","r"); f=fopen("/proc/meminfo","r");
while (NULL != fgets(s,79,f)) { while (NULL != fgets(s,79,f)) {
p=strstr(s, pattern); p=strstr(s, pattern);
if (NULL != p) { if (NULL != p) {
fclose(f); fclose(f);
return(atoi(p+strlen(pattern))); return(atoi(p+strlen(pattern)));
}
} }
} return -1;
return -1;
} }
static void static void
set_free_pages() set_free_pages()
{ {
char s[80]; char s[80];
FILE *f; FILE *f;
f=fopen("/proc/sys/vm/freepages","r"); f=fopen("/proc/sys/vm/freepages","r");
fgets(s,79,f); fgets(s,79,f);
if (atoi(s) < 32) { if (atoi(s) < 32) {
fclose(f);
f=fopen("/proc/sys/vm/freepages","w");
fprintf(f,"30\t40\t50\n");
printf("\nIncreased /proc/sys/vm/freepages values to 30/40/50\n");
}
fclose(f); fclose(f);
f=fopen("/proc/sys/vm/freepages","w");
fprintf(f,"30\t40\t50\n");
printf("\nIncreased /proc/sys/vm/freepages values to 30/40/50\n");
}
fclose(f);
} }
static int
get_kernel_revision()
{
FILE *f;
int major=0, minor=0, patch=0;
f = fopen("/proc/sys/kernel/osrelease","r");
fscanf(f,"%d.%d.%d",&major,&minor,&patch);
fclose(f);
return major*65536 + minor*256 + patch;
}
static void static void
shutdown_system(int do_reboot) shutdown_system(void)
{ {
static const char * const umount_args[] = {"/bin/umount", "-a", "-n", 0}; static const char * const umount_args[] = {"/bin/umount", "-a", "-n", 0};
static const char * const swapoff_args[] = {"/bin/swapoff", "-a", 0};
message(console, "The system is going down NOW !!");
sync(); sync();
/* Allow Ctrl-Alt-Del to reboot system. */ /* Allow Ctrl-Alt-Del to reboot system. */
reboot(RB_ENABLE_CAD); reboot(RB_ENABLE_CAD);
@ -208,59 +226,72 @@ shutdown_system(int do_reboot)
message(console, "Sending SIGKILL to all processes.\r\n"); message(console, "Sending SIGKILL to all processes.\r\n");
kill(-1, SIGKILL); kill(-1, SIGKILL);
sleep(1); sleep(1);
waitfor(run("/bin/swapoff", swapoff_args, console, 0));
waitfor(run("/bin/umount", umount_args, console, 0)); waitfor(run("/bin/umount", umount_args, console, 0));
sync(); sync();
bdflush(1, 0); if (get_kernel_revision() <= 2*65536+2*256+11) {
sync(); /* Removed bdflush call, kupdate in kernels >2.2.11 */
reboot(do_reboot ?RB_AUTOBOOT : RB_HALT_SYSTEM); bdflush(1, 0);
exit(0); sync();
}
} }
static void static void
halt_signal(int sig) halt_signal(int sig)
{ {
shutdown_system(0); shutdown_system();
message(console, "The system is halted. Press CTRL-ALT-DEL or turn off power\r\n");
reboot( RB_HALT_SYSTEM);
exit(0);
} }
static void static void
reboot_signal(int sig) reboot_signal(int sig)
{ {
shutdown_system(1); shutdown_system();
message(console, "Please stand by while rebooting the system.\r\n");
reboot( RB_AUTOBOOT);
exit(0);
} }
static void static void
exit_signal(int sig) configure_terminals( int serial_cons, int single_user_mode )
{ {
/* initrd doesn't work anyway */
shutdown_system(1);
/* This is used on the initial ramdisk */
/* message(log, "Init exiting.");
exit(0);
*/
}
void
configure_terminals( int serial_cons )
{
//struct stat statbuf;
char *tty; char *tty;
struct serial_struct sr;
struct vt_stat vt;
switch (serial_cons) { switch (serial_cons) {
case -1:
/* 2.2 kernels:
* identify the real console backend and try to make use of it */
if (ioctl(0,TIOCGSERIAL,&sr) == 0) {
sprintf( console, "/dev/ttyS%d", sr.line );
serial_cons = sr.line+1;
}
else if (ioctl(0, VT_GETSTATE, &vt) == 0) {
sprintf( console, "/dev/tty%d", vt.v_active );
serial_cons = 0;
}
else {
/* unknown backend: fallback to /dev/console */
strcpy( console, "/dev/console" );
serial_cons = 0;
}
break;
case 1: case 1:
strcpy( console, "/dev/ttyS0" ); strcpy( console, "/dev/cua0" );
break; break;
case 2: case 2:
strcpy( console, "/dev/ttyS1" ); strcpy( console, "/dev/cua1" );
break; break;
default: default:
tty = ttyname(0); tty = ttyname(0);
if (tty) { if (tty) {
strcpy( console, tty ); strcpy( console, tty );
if (!strncmp( tty, "/dev/ttyS", 9 )) if (!strncmp( tty, "/dev/cua", 8 ))
serial_cons=1; serial_cons=1;
} }
else else
@ -269,24 +300,33 @@ configure_terminals( int serial_cons )
} }
if (!first_terminal) if (!first_terminal)
first_terminal = console; first_terminal = console;
if (serial_cons && !strncmp(term_ptr,"TERM=linux",10)) #if #cpu (sparc)
term_ptr = "TERM=vt100"; if (serial_cons > 0 && !strncmp(term_ptr,"TERM=linux",10))
term_ptr = "TERM=vt100";
#endif
if (serial_cons) {
/* disable other but the first terminal:
* VT is not initialized anymore on 2.2 kernel when booting from
* serial console, therefore modprobe is flooding the display with
* "can't locate module char-major-4" messages. */
log = 0;
second_terminal = 0;
}
} }
extern int extern int
init_main(int argc, char * * argv) init_main(int argc, char * * argv)
{ {
static const char* const rc = "etc/rc"; const char * rc_arguments[100];
const char * arguments[100]; const char * arguments[100];
int run_rc = 1; int run_rc = TRUE;
int j; int j;
int pid1 = 0; int pid1 = 0;
int pid2 = 0; int pid2 = 0;
int create_swap= -1;
struct stat statbuf; struct stat statbuf;
const char * tty_commands[2] = { "bin/sh", "bin/sh"}; const char * tty_commands[3] = { "etc/init.d/rcS", "bin/sh"};
char swap[20];
int serial_console = 0; int serial_console = 0;
int retval;
/* /*
* If I am started as /linuxrc instead of /sbin/init, I don't have the * If I am started as /linuxrc instead of /sbin/init, I don't have the
@ -299,7 +339,7 @@ init_main(int argc, char * * argv)
signal(SIGUSR1, halt_signal); signal(SIGUSR1, halt_signal);
signal(SIGUSR2, reboot_signal); signal(SIGUSR2, reboot_signal);
signal(SIGINT, reboot_signal); signal(SIGINT, reboot_signal);
signal(SIGTERM, exit_signal); signal(SIGTERM, reboot_signal);
reboot(RB_DISABLE_CAD); reboot(RB_DISABLE_CAD);
@ -307,7 +347,7 @@ init_main(int argc, char * * argv)
for ( j = 1; j < argc; j++ ) { for ( j = 1; j < argc; j++ ) {
if ( strcmp(argv[j], "single") == 0 ) { if ( strcmp(argv[j], "single") == 0 ) {
run_rc = 0; run_rc = FALSE;
tty_commands[0] = "bin/sh"; tty_commands[0] = "bin/sh";
tty_commands[1] = 0; tty_commands[1] = 0;
} }
@ -341,7 +381,6 @@ init_main(int argc, char * * argv)
term_ptr=__environ[j]; term_ptr=__environ[j];
} }
} }
configure_terminals( serial_console );
printf("mounting /proc ...\n"); printf("mounting /proc ...\n");
if (mount("/proc","/proc","proc",0,0)) { if (mount("/proc","/proc","proc",0,0)) {
@ -349,81 +388,75 @@ init_main(int argc, char * * argv)
} }
printf("\tdone.\n"); printf("\tdone.\n");
if (get_kernel_revision() >= 2*65536+1*256+71) {
/* if >= 2.1.71 kernel, /dev/console is not a symlink anymore:
* use it as primary console */
serial_console=-1;
}
/* Make sure /etc/init.d/rc exists */
retval= stat(tty_commands[0],&statbuf);
if (retval)
run_rc = FALSE;
configure_terminals( serial_console, run_rc);
set_free_pages(); set_free_pages();
/* not enough memory to do anything useful*/ /* not enough memory to do anything useful*/
if (mem_total() < 2000) { if (mem_total() < 2000) {
int retval; retval= stat("/etc/fstab",&statbuf);
retval= stat("/etc/swappartition",&statbuf); if (retval) {
if (retval) { printf("You do not have enough RAM, sorry.\n");
printf("You do not have enough RAM, sorry.\n"); while (1) { sleep(1);}
while (1) { sleep(1);} } else {
} else { /* everything OK */ /* Try to turn on swap */
FILE *f; static const char * const swapon_args[] = {"/bin/swapon", "-a", 0};
waitfor(run("/bin/swapon", swapon_args, console, 0));
f=fopen("/etc/swappartition","r"); if (mem_total() < 2000) {
fgets(swap,19,f); printf("You do not have enough RAM, sorry.\n");
fclose(f); while (1) { sleep(1);}
*(strstr(swap,"\n"))='\0'; }
if (swapon(swap,0)) {
perror("swapon failed\n");
} else {
f=fopen("/etc/swaps","w");
fprintf(f,"%s none swap rw 0 0",swap);
fclose(f);
create_swap = 0;
} }
}
} }
/* /*
* Don't modify **argv directly, it would show up in the "ps" display. * Don't modify **argv directly, it would show up in the "ps" display.
* I don't want "init" to look like "rc". * I don't want "init" to look like "rc".
*/ */
arguments[0] = rc; rc_arguments[0] = tty_commands[0];
for ( j = 1; j < argc; j++ ) { for ( j = 1; j < argc; j++ ) {
arguments[j] = argv[j]; rc_arguments[j] = argv[j];
}
arguments[j] = 0;
if ( run_rc ) {
run(rc, arguments, console, 0);
//waitfor(run(rc, arguments, console, 0));
}
if ( 0 == create_swap) {
if (unlink("/etc/swappartition")) {
perror("unlinking /etc/swappartition");
}
} }
rc_arguments[j] = 0;
arguments[0] = "-sh"; arguments[0] = "-sh";
arguments[1] = 0; arguments[1] = 0;
/* Ok, now launch the rc script /etc/init.d/rcS and prepare to start up
* some VTs on tty1 and tty2 if somebody hits enter
*/
for ( ; ; ) { for ( ; ; ) {
int wpid; int wpid;
int status; int status;
if ( pid1 == 0 && tty_commands[0] ) { if ( pid1 == 0 && tty_commands[0] ) {
/* Ask before starting a shell */ if ( run_rc == TRUE ) {
/* pid1 = run(tty_commands[0], rc_arguments, first_terminal, 0);
arguments[0] = tty_commands[0]; } else {
*/ pid2 = run(tty_commands[1], arguments, first_terminal, 1);
pid1 = run(tty_commands[0], arguments, first_terminal, 1); }
} }
if ( pid2 == 0 && tty_commands[1] ) { if ( pid2 == 0 && second_terminal && tty_commands[1] ) {
pid2 = run(tty_commands[1], arguments, second_terminal, 1); pid2 = run(tty_commands[1], arguments, second_terminal, 1);
} }
wpid = wait(&status); wpid = wait(&status);
if ( wpid > 0 ) { if ( wpid > 0 && wpid != pid1) {
/* DEBUGGING */
message(log, "pid %d exited, status=%x.\n", wpid, status); message(log, "pid %d exited, status=%x.\n", wpid, status);
} }
if ( wpid == pid1 ) { if ( wpid == pid2 ) {
pid1 = 0;
}
if ( wpid == pid2 )
pid2 = 0; pid2 = 0;
}
} }
} }

267
init/init.c
View File

@ -13,19 +13,21 @@
#include <sys/mount.h> #include <sys/mount.h>
#include <sys/reboot.h> #include <sys/reboot.h>
#include <sys/kdaemon.h> #include <sys/kdaemon.h>
#include <sys/swap.h>
#include <sys/sysmacros.h> #include <sys/sysmacros.h>
#include <linux/serial.h> /* for serial_struct */
#include <sys/vt.h> /* for vt_stat */
#include <sys/ioctl.h>
const char init_usage[] = "Used internally by the system."; static const char init_usage[] = "Used internally by the system.";
char console[16] = ""; static char console[16] = "";
const char * default_console = "/dev/tty1"; static const char* default_console = "/dev/tty2";
char * first_terminal = NULL; static char* first_terminal = NULL;
const char * second_terminal = "/dev/tty2"; static const char* second_terminal = "/dev/tty2";
const char log[] = "/dev/tty3"; static const char* log = "/dev/tty3";
char * term_ptr = NULL; static char* term_ptr = NULL;
static void static void
message(const char * terminal, const char * pattern, ...) message(const char* terminal, const char * pattern, ...)
{ {
int fd; int fd;
FILE * con = 0; FILE * con = 0;
@ -36,7 +38,8 @@ message(const char * terminal, const char * pattern, ...)
* has switched consoles, the open will get the new console. If we kept * has switched consoles, the open will get the new console. If we kept
* the console open, we'd always print to the same one. * the console open, we'd always print to the same one.
*/ */
if ( ((fd = open(terminal, O_WRONLY|O_NOCTTY)) < 0) if ( !terminal
|| ((fd = open(terminal, O_WRONLY|O_NOCTTY)) < 0)
|| ((con = fdopen(fd, "w")) == NULL) ) || ((con = fdopen(fd, "w")) == NULL) )
return; return;
@ -158,44 +161,59 @@ run(const char* program, const char* const* arguments,
static int static int
mem_total() mem_total()
{ {
char s[80]; char s[80];
char *p; char *p;
FILE *f; FILE *f;
const char pattern[]="MemTotal:"; const char pattern[]="MemTotal:";
f=fopen("/proc/meminfo","r"); f=fopen("/proc/meminfo","r");
while (NULL != fgets(s,79,f)) { while (NULL != fgets(s,79,f)) {
p=strstr(s, pattern); p=strstr(s, pattern);
if (NULL != p) { if (NULL != p) {
fclose(f); fclose(f);
return(atoi(p+strlen(pattern))); return(atoi(p+strlen(pattern)));
}
} }
} return -1;
return -1;
} }
static void static void
set_free_pages() set_free_pages()
{ {
char s[80]; char s[80];
FILE *f; FILE *f;
f=fopen("/proc/sys/vm/freepages","r"); f=fopen("/proc/sys/vm/freepages","r");
fgets(s,79,f); fgets(s,79,f);
if (atoi(s) < 32) { if (atoi(s) < 32) {
fclose(f);
f=fopen("/proc/sys/vm/freepages","w");
fprintf(f,"30\t40\t50\n");
printf("\nIncreased /proc/sys/vm/freepages values to 30/40/50\n");
}
fclose(f); fclose(f);
f=fopen("/proc/sys/vm/freepages","w");
fprintf(f,"30\t40\t50\n");
printf("\nIncreased /proc/sys/vm/freepages values to 30/40/50\n");
}
fclose(f);
} }
static int
get_kernel_revision()
{
FILE *f;
int major=0, minor=0, patch=0;
f = fopen("/proc/sys/kernel/osrelease","r");
fscanf(f,"%d.%d.%d",&major,&minor,&patch);
fclose(f);
return major*65536 + minor*256 + patch;
}
static void static void
shutdown_system(int do_reboot) shutdown_system(void)
{ {
static const char * const umount_args[] = {"/bin/umount", "-a", "-n", 0}; static const char * const umount_args[] = {"/bin/umount", "-a", "-n", 0};
static const char * const swapoff_args[] = {"/bin/swapoff", "-a", 0};
message(console, "The system is going down NOW !!");
sync(); sync();
/* Allow Ctrl-Alt-Del to reboot system. */ /* Allow Ctrl-Alt-Del to reboot system. */
reboot(RB_ENABLE_CAD); reboot(RB_ENABLE_CAD);
@ -208,59 +226,72 @@ shutdown_system(int do_reboot)
message(console, "Sending SIGKILL to all processes.\r\n"); message(console, "Sending SIGKILL to all processes.\r\n");
kill(-1, SIGKILL); kill(-1, SIGKILL);
sleep(1); sleep(1);
waitfor(run("/bin/swapoff", swapoff_args, console, 0));
waitfor(run("/bin/umount", umount_args, console, 0)); waitfor(run("/bin/umount", umount_args, console, 0));
sync(); sync();
bdflush(1, 0); if (get_kernel_revision() <= 2*65536+2*256+11) {
sync(); /* Removed bdflush call, kupdate in kernels >2.2.11 */
reboot(do_reboot ?RB_AUTOBOOT : RB_HALT_SYSTEM); bdflush(1, 0);
exit(0); sync();
}
} }
static void static void
halt_signal(int sig) halt_signal(int sig)
{ {
shutdown_system(0); shutdown_system();
message(console, "The system is halted. Press CTRL-ALT-DEL or turn off power\r\n");
reboot( RB_HALT_SYSTEM);
exit(0);
} }
static void static void
reboot_signal(int sig) reboot_signal(int sig)
{ {
shutdown_system(1); shutdown_system();
message(console, "Please stand by while rebooting the system.\r\n");
reboot( RB_AUTOBOOT);
exit(0);
} }
static void static void
exit_signal(int sig) configure_terminals( int serial_cons, int single_user_mode )
{ {
/* initrd doesn't work anyway */
shutdown_system(1);
/* This is used on the initial ramdisk */
/* message(log, "Init exiting.");
exit(0);
*/
}
void
configure_terminals( int serial_cons )
{
//struct stat statbuf;
char *tty; char *tty;
struct serial_struct sr;
struct vt_stat vt;
switch (serial_cons) { switch (serial_cons) {
case -1:
/* 2.2 kernels:
* identify the real console backend and try to make use of it */
if (ioctl(0,TIOCGSERIAL,&sr) == 0) {
sprintf( console, "/dev/ttyS%d", sr.line );
serial_cons = sr.line+1;
}
else if (ioctl(0, VT_GETSTATE, &vt) == 0) {
sprintf( console, "/dev/tty%d", vt.v_active );
serial_cons = 0;
}
else {
/* unknown backend: fallback to /dev/console */
strcpy( console, "/dev/console" );
serial_cons = 0;
}
break;
case 1: case 1:
strcpy( console, "/dev/ttyS0" ); strcpy( console, "/dev/cua0" );
break; break;
case 2: case 2:
strcpy( console, "/dev/ttyS1" ); strcpy( console, "/dev/cua1" );
break; break;
default: default:
tty = ttyname(0); tty = ttyname(0);
if (tty) { if (tty) {
strcpy( console, tty ); strcpy( console, tty );
if (!strncmp( tty, "/dev/ttyS", 9 )) if (!strncmp( tty, "/dev/cua", 8 ))
serial_cons=1; serial_cons=1;
} }
else else
@ -269,24 +300,33 @@ configure_terminals( int serial_cons )
} }
if (!first_terminal) if (!first_terminal)
first_terminal = console; first_terminal = console;
if (serial_cons && !strncmp(term_ptr,"TERM=linux",10)) #if #cpu (sparc)
term_ptr = "TERM=vt100"; if (serial_cons > 0 && !strncmp(term_ptr,"TERM=linux",10))
term_ptr = "TERM=vt100";
#endif
if (serial_cons) {
/* disable other but the first terminal:
* VT is not initialized anymore on 2.2 kernel when booting from
* serial console, therefore modprobe is flooding the display with
* "can't locate module char-major-4" messages. */
log = 0;
second_terminal = 0;
}
} }
extern int extern int
init_main(int argc, char * * argv) init_main(int argc, char * * argv)
{ {
static const char* const rc = "etc/rc"; const char * rc_arguments[100];
const char * arguments[100]; const char * arguments[100];
int run_rc = 1; int run_rc = TRUE;
int j; int j;
int pid1 = 0; int pid1 = 0;
int pid2 = 0; int pid2 = 0;
int create_swap= -1;
struct stat statbuf; struct stat statbuf;
const char * tty_commands[2] = { "bin/sh", "bin/sh"}; const char * tty_commands[3] = { "etc/init.d/rcS", "bin/sh"};
char swap[20];
int serial_console = 0; int serial_console = 0;
int retval;
/* /*
* If I am started as /linuxrc instead of /sbin/init, I don't have the * If I am started as /linuxrc instead of /sbin/init, I don't have the
@ -299,7 +339,7 @@ init_main(int argc, char * * argv)
signal(SIGUSR1, halt_signal); signal(SIGUSR1, halt_signal);
signal(SIGUSR2, reboot_signal); signal(SIGUSR2, reboot_signal);
signal(SIGINT, reboot_signal); signal(SIGINT, reboot_signal);
signal(SIGTERM, exit_signal); signal(SIGTERM, reboot_signal);
reboot(RB_DISABLE_CAD); reboot(RB_DISABLE_CAD);
@ -307,7 +347,7 @@ init_main(int argc, char * * argv)
for ( j = 1; j < argc; j++ ) { for ( j = 1; j < argc; j++ ) {
if ( strcmp(argv[j], "single") == 0 ) { if ( strcmp(argv[j], "single") == 0 ) {
run_rc = 0; run_rc = FALSE;
tty_commands[0] = "bin/sh"; tty_commands[0] = "bin/sh";
tty_commands[1] = 0; tty_commands[1] = 0;
} }
@ -341,7 +381,6 @@ init_main(int argc, char * * argv)
term_ptr=__environ[j]; term_ptr=__environ[j];
} }
} }
configure_terminals( serial_console );
printf("mounting /proc ...\n"); printf("mounting /proc ...\n");
if (mount("/proc","/proc","proc",0,0)) { if (mount("/proc","/proc","proc",0,0)) {
@ -349,81 +388,75 @@ init_main(int argc, char * * argv)
} }
printf("\tdone.\n"); printf("\tdone.\n");
if (get_kernel_revision() >= 2*65536+1*256+71) {
/* if >= 2.1.71 kernel, /dev/console is not a symlink anymore:
* use it as primary console */
serial_console=-1;
}
/* Make sure /etc/init.d/rc exists */
retval= stat(tty_commands[0],&statbuf);
if (retval)
run_rc = FALSE;
configure_terminals( serial_console, run_rc);
set_free_pages(); set_free_pages();
/* not enough memory to do anything useful*/ /* not enough memory to do anything useful*/
if (mem_total() < 2000) { if (mem_total() < 2000) {
int retval; retval= stat("/etc/fstab",&statbuf);
retval= stat("/etc/swappartition",&statbuf); if (retval) {
if (retval) { printf("You do not have enough RAM, sorry.\n");
printf("You do not have enough RAM, sorry.\n"); while (1) { sleep(1);}
while (1) { sleep(1);} } else {
} else { /* everything OK */ /* Try to turn on swap */
FILE *f; static const char * const swapon_args[] = {"/bin/swapon", "-a", 0};
waitfor(run("/bin/swapon", swapon_args, console, 0));
f=fopen("/etc/swappartition","r"); if (mem_total() < 2000) {
fgets(swap,19,f); printf("You do not have enough RAM, sorry.\n");
fclose(f); while (1) { sleep(1);}
*(strstr(swap,"\n"))='\0'; }
if (swapon(swap,0)) {
perror("swapon failed\n");
} else {
f=fopen("/etc/swaps","w");
fprintf(f,"%s none swap rw 0 0",swap);
fclose(f);
create_swap = 0;
} }
}
} }
/* /*
* Don't modify **argv directly, it would show up in the "ps" display. * Don't modify **argv directly, it would show up in the "ps" display.
* I don't want "init" to look like "rc". * I don't want "init" to look like "rc".
*/ */
arguments[0] = rc; rc_arguments[0] = tty_commands[0];
for ( j = 1; j < argc; j++ ) { for ( j = 1; j < argc; j++ ) {
arguments[j] = argv[j]; rc_arguments[j] = argv[j];
}
arguments[j] = 0;
if ( run_rc ) {
run(rc, arguments, console, 0);
//waitfor(run(rc, arguments, console, 0));
}
if ( 0 == create_swap) {
if (unlink("/etc/swappartition")) {
perror("unlinking /etc/swappartition");
}
} }
rc_arguments[j] = 0;
arguments[0] = "-sh"; arguments[0] = "-sh";
arguments[1] = 0; arguments[1] = 0;
/* Ok, now launch the rc script /etc/init.d/rcS and prepare to start up
* some VTs on tty1 and tty2 if somebody hits enter
*/
for ( ; ; ) { for ( ; ; ) {
int wpid; int wpid;
int status; int status;
if ( pid1 == 0 && tty_commands[0] ) { if ( pid1 == 0 && tty_commands[0] ) {
/* Ask before starting a shell */ if ( run_rc == TRUE ) {
/* pid1 = run(tty_commands[0], rc_arguments, first_terminal, 0);
arguments[0] = tty_commands[0]; } else {
*/ pid2 = run(tty_commands[1], arguments, first_terminal, 1);
pid1 = run(tty_commands[0], arguments, first_terminal, 1); }
} }
if ( pid2 == 0 && tty_commands[1] ) { if ( pid2 == 0 && second_terminal && tty_commands[1] ) {
pid2 = run(tty_commands[1], arguments, second_terminal, 1); pid2 = run(tty_commands[1], arguments, second_terminal, 1);
} }
wpid = wait(&status); wpid = wait(&status);
if ( wpid > 0 ) { if ( wpid > 0 && wpid != pid1) {
/* DEBUGGING */
message(log, "pid %d exited, status=%x.\n", wpid, status); message(log, "pid %d exited, status=%x.\n", wpid, status);
} }
if ( wpid == pid1 ) { if ( wpid == pid2 ) {
pid1 = 0;
}
if ( wpid == pid2 )
pid2 = 0; pid2 = 0;
}
} }
} }