This commit is contained in:
Eric Andersen 1999-12-07 08:37:31 +00:00
parent 0ecb54a0f3
commit d00c262847
9 changed files with 128 additions and 59 deletions

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@ -1,7 +1,7 @@
0.38 0.38
* Fixed a segfault in 'umount -a' when a badly formed /etc/fstab * Fixed a segfault in 'umount -a' when a badly formed /etc/fstab
file existed. file existed.
* df will not exit on error, but will try to stat all mounted filesystems. * df will not exit on error, but will stat all mounted filesystems.
* Fixed tar so uid/gid/permissions on extracted tarballs will be correct. * Fixed tar so uid/gid/permissions on extracted tarballs will be correct.
* Fixed find -name so it properly uses shell wildcard patterns * Fixed find -name so it properly uses shell wildcard patterns
(i.e. `*', `?', and `[]') instead of regular expressions, which (i.e. `*', `?', and `[]') instead of regular expressions, which
@ -10,11 +10,12 @@
kernel messages. kernel messages.
* syslogd now creates the /dev/log socket to make sure it is there, and * syslogd now creates the /dev/log socket to make sure it is there, and
is actually a socket with the right permissions. is actually a socket with the right permissions.
* I've taken a first step to making busybox not need the /proc filesystem. * I've taken a first step to making busybox not need the /proc
Most apps don't need it. Those that _require_ it, will complain filesystem. Most apps don't need it. Those that _require_ it,
if you enable them when you disable BB_FEATURE_USE_PROCFS. will complain if you enable them when you disable
BB_FEATURE_USE_PROCFS.
-Erik Andrsen -Erik Andrsen, Dec 5, 1999
0.37 0.37
* Wrote a micro syslogd, and a logger util (to log things to the syslog * Wrote a micro syslogd, and a logger util (to log things to the syslog

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@ -73,7 +73,7 @@ else
endif endif
ifndef $(PREFIX) ifndef $(PREFIX)
PREFIX=`pwd`/busybox_install PREFIX=`pwd`/_install
endif endif
LIBRARIES= LIBRARIES=
@ -95,7 +95,7 @@ busybox.links:
clean: clean:
- rm -f $(PROG) busybox.links *~ *.o core - rm -f $(PROG) busybox.links *~ *.o core
- rm -rf busybox_install - rm -rf _install
distclean: clean distclean: clean
- rm -f $(PROG) - rm -f $(PROG)

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@ -12,8 +12,7 @@ h=`sort busybox.links | uniq`
for i in $h ; do for i in $h ; do
echo " $1$i -> /bin/busybox" echo " $1$i -> /bin/busybox"
mkdir -p $1/`echo $i | sed -e 's/\/[^\/]*$//' ` mkdir -p $1/`echo $i | sed -e 's/\/[^\/]*$//' `
rm -f $1$i ln -fs /bin/busybox $1$i
ln -s /bin/busybox $1$i
done done
rm -f $1/bin/busybox rm -f $1/bin/busybox
install -m 755 busybox $1/bin/busybox install -m 755 busybox $1/bin/busybox

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@ -74,6 +74,8 @@
// pretty/useful). // pretty/useful).
// //
// //
// enable a second console on VT2 in init
#define BB_FEATURE_INIT_SECOND_CONSOLE
// enable features that use the /proc filesystem // enable features that use the /proc filesystem
#define BB_FEATURE_USE_PROCFS #define BB_FEATURE_USE_PROCFS
//Enable init being called as /linuxrc //Enable init being called as /linuxrc

76
init.c
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@ -55,6 +55,7 @@
#define VT_LOG "/dev/tty3" /* Virtual console */ #define VT_LOG "/dev/tty3" /* Virtual console */
#define SERIAL_CON0 "/dev/ttyS0" /* Primary serial console */ #define SERIAL_CON0 "/dev/ttyS0" /* Primary serial console */
#define SERIAL_CON1 "/dev/ttyS1" /* Serial console */ #define SERIAL_CON1 "/dev/ttyS1" /* Serial console */
#define GETTY "/sbin/getty" /* Default location of getty */
#define SHELL "/bin/sh" /* Default shell */ #define SHELL "/bin/sh" /* Default shell */
#define INITSCRIPT "/etc/init.d/rcS" /* Initscript. */ #define INITSCRIPT "/etc/init.d/rcS" /* Initscript. */
@ -446,15 +447,19 @@ static void reboot_signal(int sig)
extern int init_main(int argc, char **argv) extern int init_main(int argc, char **argv)
{ {
int run_rc = TRUE; int run_rc = FALSE;
int wait_for_enter = TRUE; int single = FALSE;
int wait_for_enter_tty1 = TRUE;
int wait_for_enter_tty2 = TRUE;
pid_t pid1 = 0; pid_t pid1 = 0;
pid_t pid2 = 0; pid_t pid2 = 0;
struct stat statbuf; struct stat statbuf;
const char* const rc_script_command[] = { INITSCRIPT, INITSCRIPT, 0}; const char* const rc_script_command[] = { INITSCRIPT, INITSCRIPT, 0};
const char* const getty1_command[] = { GETTY, GETTY, VT_PRIMARY, 0};
const char* const getty2_command[] = { GETTY, GETTY, VT_SECONDARY, 0};
const char* const shell_command[] = { SHELL, "-" SHELL, 0}; const char* const shell_command[] = { SHELL, "-" SHELL, 0};
const char* const* tty0_command = shell_command;
const char* const* tty1_command = shell_command; const char* const* tty1_command = shell_command;
const char* const* tty2_command = shell_command;
#ifdef BB_INIT_CMD_IF_RC_SCRIPT_EXITS #ifdef BB_INIT_CMD_IF_RC_SCRIPT_EXITS
const char* const rc_exit_command[] = { "BB_INIT_CMD_IF_RC_SCRIPT_EXITS", const char* const rc_exit_command[] = { "BB_INIT_CMD_IF_RC_SCRIPT_EXITS",
"BB_INIT_CMD_IF_RC_SCRIPT_EXITS", 0 }; "BB_INIT_CMD_IF_RC_SCRIPT_EXITS", 0 };
@ -477,13 +482,6 @@ extern int init_main(int argc, char **argv)
} }
#endif #endif
/* Check if we are supposed to be in single user mode */
if ( argc > 1 && (!strcmp(argv[1], "single") ||
!strcmp(argv[1], "-s") || !strcmp(argv[1], "1"))) {
run_rc = FALSE;
}
/* Set up sig handlers -- be sure to /* Set up sig handlers -- be sure to
* clear all of these in run() */ * clear all of these in run() */
signal(SIGUSR1, halt_signal); signal(SIGUSR1, halt_signal);
@ -529,27 +527,55 @@ extern int init_main(int argc, char **argv)
/* Make sure there is enough memory to do something useful. */ /* Make sure there is enough memory to do something useful. */
check_memory(); check_memory();
/* Check if we are supposed to be in single user mode */
/* Make sure an init script exists before trying to run it */ if ( argc > 1 && (!strcmp(argv[1], "single") ||
if (run_rc == TRUE && stat(INITSCRIPT, &statbuf)==0) { !strcmp(argv[1], "-s") || !strcmp(argv[1], "1"))) {
wait_for_enter = FALSE; single = TRUE;
tty0_command = rc_script_command; tty1_command = shell_command;
tty2_command = shell_command;
} }
/* Make sure an init script exists before trying to run it */
if (single==FALSE && stat(INITSCRIPT, &statbuf)==0) {
run_rc = TRUE;
wait_for_enter_tty1 = FALSE;
tty1_command = rc_script_command;
}
/* Make sure /sbin/getty exists before trying to run it */
if (stat(GETTY, &statbuf)==0) {
char* where;
wait_for_enter_tty2 = FALSE;
where = strrchr( console, '/');
if ( where != NULL) {
strcpy( (char*)getty2_command[2], where);
}
tty2_command = getty2_command;
/* Check on hooking a getty onto tty1 */
if (run_rc == FALSE && single==FALSE) {
wait_for_enter_tty1 = FALSE;
where = strrchr( second_console, '/');
if ( where != NULL) {
strcpy( (char*)getty1_command[2], where);
}
tty1_command = getty1_command;
}
}
/* Ok, now launch the rc script and/or prepare to /* Ok, now launch the tty1_command and tty2_command */
* start up some VTs if somebody hits enter...
*/
for (;;) { for (;;) {
pid_t wpid; pid_t wpid;
int status; int status;
if (pid1 == 0 && tty0_command) { if (pid1 == 0 && tty1_command) {
pid1 = run(tty0_command, console, wait_for_enter); pid1 = run(tty1_command, console, wait_for_enter_tty1);
} }
if (pid2 == 0 && tty1_command && second_console) { #ifdef BB_FEATURE_INIT_SECOND_CONSOLE
pid2 = run(tty1_command, second_console, TRUE); if (pid2 == 0 && tty2_command && second_console) {
pid2 = run(tty2_command, second_console, wait_for_enter_tty2);
} }
#endif
wpid = wait(&status); wpid = wait(&status);
if (wpid > 0 ) { if (wpid > 0 ) {
message(LOG, "pid %d exited, status=%x.\n", wpid, status); message(LOG, "pid %d exited, status=%x.\n", wpid, status);
@ -563,14 +589,16 @@ extern int init_main(int argc, char **argv)
else { else {
pid1 = 0; pid1 = 0;
run_rc=FALSE; run_rc=FALSE;
wait_for_enter=TRUE; wait_for_enter_tty1=TRUE;
tty0_command=rc_exit_command; tty1_command=rc_exit_command;
} }
#endif #endif
} }
#ifdef BB_FEATURE_INIT_SECOND_CONSOLE
if (wpid == pid2) { if (wpid == pid2) {
pid2 = 0; pid2 = 0;
} }
#endif
sleep(1); sleep(1);
} }
} }

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@ -55,6 +55,7 @@
#define VT_LOG "/dev/tty3" /* Virtual console */ #define VT_LOG "/dev/tty3" /* Virtual console */
#define SERIAL_CON0 "/dev/ttyS0" /* Primary serial console */ #define SERIAL_CON0 "/dev/ttyS0" /* Primary serial console */
#define SERIAL_CON1 "/dev/ttyS1" /* Serial console */ #define SERIAL_CON1 "/dev/ttyS1" /* Serial console */
#define GETTY "/sbin/getty" /* Default location of getty */
#define SHELL "/bin/sh" /* Default shell */ #define SHELL "/bin/sh" /* Default shell */
#define INITSCRIPT "/etc/init.d/rcS" /* Initscript. */ #define INITSCRIPT "/etc/init.d/rcS" /* Initscript. */
@ -446,15 +447,19 @@ static void reboot_signal(int sig)
extern int init_main(int argc, char **argv) extern int init_main(int argc, char **argv)
{ {
int run_rc = TRUE; int run_rc = FALSE;
int wait_for_enter = TRUE; int single = FALSE;
int wait_for_enter_tty1 = TRUE;
int wait_for_enter_tty2 = TRUE;
pid_t pid1 = 0; pid_t pid1 = 0;
pid_t pid2 = 0; pid_t pid2 = 0;
struct stat statbuf; struct stat statbuf;
const char* const rc_script_command[] = { INITSCRIPT, INITSCRIPT, 0}; const char* const rc_script_command[] = { INITSCRIPT, INITSCRIPT, 0};
const char* const getty1_command[] = { GETTY, GETTY, VT_PRIMARY, 0};
const char* const getty2_command[] = { GETTY, GETTY, VT_SECONDARY, 0};
const char* const shell_command[] = { SHELL, "-" SHELL, 0}; const char* const shell_command[] = { SHELL, "-" SHELL, 0};
const char* const* tty0_command = shell_command;
const char* const* tty1_command = shell_command; const char* const* tty1_command = shell_command;
const char* const* tty2_command = shell_command;
#ifdef BB_INIT_CMD_IF_RC_SCRIPT_EXITS #ifdef BB_INIT_CMD_IF_RC_SCRIPT_EXITS
const char* const rc_exit_command[] = { "BB_INIT_CMD_IF_RC_SCRIPT_EXITS", const char* const rc_exit_command[] = { "BB_INIT_CMD_IF_RC_SCRIPT_EXITS",
"BB_INIT_CMD_IF_RC_SCRIPT_EXITS", 0 }; "BB_INIT_CMD_IF_RC_SCRIPT_EXITS", 0 };
@ -477,13 +482,6 @@ extern int init_main(int argc, char **argv)
} }
#endif #endif
/* Check if we are supposed to be in single user mode */
if ( argc > 1 && (!strcmp(argv[1], "single") ||
!strcmp(argv[1], "-s") || !strcmp(argv[1], "1"))) {
run_rc = FALSE;
}
/* Set up sig handlers -- be sure to /* Set up sig handlers -- be sure to
* clear all of these in run() */ * clear all of these in run() */
signal(SIGUSR1, halt_signal); signal(SIGUSR1, halt_signal);
@ -529,27 +527,55 @@ extern int init_main(int argc, char **argv)
/* Make sure there is enough memory to do something useful. */ /* Make sure there is enough memory to do something useful. */
check_memory(); check_memory();
/* Check if we are supposed to be in single user mode */
/* Make sure an init script exists before trying to run it */ if ( argc > 1 && (!strcmp(argv[1], "single") ||
if (run_rc == TRUE && stat(INITSCRIPT, &statbuf)==0) { !strcmp(argv[1], "-s") || !strcmp(argv[1], "1"))) {
wait_for_enter = FALSE; single = TRUE;
tty0_command = rc_script_command; tty1_command = shell_command;
tty2_command = shell_command;
} }
/* Make sure an init script exists before trying to run it */
if (single==FALSE && stat(INITSCRIPT, &statbuf)==0) {
run_rc = TRUE;
wait_for_enter_tty1 = FALSE;
tty1_command = rc_script_command;
}
/* Make sure /sbin/getty exists before trying to run it */
if (stat(GETTY, &statbuf)==0) {
char* where;
wait_for_enter_tty2 = FALSE;
where = strrchr( console, '/');
if ( where != NULL) {
strcpy( (char*)getty2_command[2], where);
}
tty2_command = getty2_command;
/* Check on hooking a getty onto tty1 */
if (run_rc == FALSE && single==FALSE) {
wait_for_enter_tty1 = FALSE;
where = strrchr( second_console, '/');
if ( where != NULL) {
strcpy( (char*)getty1_command[2], where);
}
tty1_command = getty1_command;
}
}
/* Ok, now launch the rc script and/or prepare to /* Ok, now launch the tty1_command and tty2_command */
* start up some VTs if somebody hits enter...
*/
for (;;) { for (;;) {
pid_t wpid; pid_t wpid;
int status; int status;
if (pid1 == 0 && tty0_command) { if (pid1 == 0 && tty1_command) {
pid1 = run(tty0_command, console, wait_for_enter); pid1 = run(tty1_command, console, wait_for_enter_tty1);
} }
if (pid2 == 0 && tty1_command && second_console) { #ifdef BB_FEATURE_INIT_SECOND_CONSOLE
pid2 = run(tty1_command, second_console, TRUE); if (pid2 == 0 && tty2_command && second_console) {
pid2 = run(tty2_command, second_console, wait_for_enter_tty2);
} }
#endif
wpid = wait(&status); wpid = wait(&status);
if (wpid > 0 ) { if (wpid > 0 ) {
message(LOG, "pid %d exited, status=%x.\n", wpid, status); message(LOG, "pid %d exited, status=%x.\n", wpid, status);
@ -563,14 +589,16 @@ extern int init_main(int argc, char **argv)
else { else {
pid1 = 0; pid1 = 0;
run_rc=FALSE; run_rc=FALSE;
wait_for_enter=TRUE; wait_for_enter_tty1=TRUE;
tty0_command=rc_exit_command; tty1_command=rc_exit_command;
} }
#endif #endif
} }
#ifdef BB_FEATURE_INIT_SECOND_CONSOLE
if (wpid == pid2) { if (wpid == pid2) {
pid2 = 0; pid2 = 0;
} }
#endif
sleep(1); sleep(1);
} }
} }

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@ -12,8 +12,7 @@ h=`sort busybox.links | uniq`
for i in $h ; do for i in $h ; do
echo " $1$i -> /bin/busybox" echo " $1$i -> /bin/busybox"
mkdir -p $1/`echo $i | sed -e 's/\/[^\/]*$//' ` mkdir -p $1/`echo $i | sed -e 's/\/[^\/]*$//' `
rm -f $1$i ln -fs /bin/busybox $1$i
ln -s /bin/busybox $1$i
done done
rm -f $1/bin/busybox rm -f $1/bin/busybox
install -m 755 busybox $1/bin/busybox install -m 755 busybox $1/bin/busybox

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@ -107,6 +107,12 @@ umount_all(int useMtab)
extern int extern int
umount_main(int argc, char** argv) umount_main(int argc, char** argv)
{ {
int i=0;
char **foo=argv;
while(*foo) {
fprintf(stderr, "argv[%d]='%s'\n", i++, *foo);
foo++;
}
if (argc < 2) { if (argc < 2) {
usage( umount_usage); usage( umount_usage);

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@ -107,6 +107,12 @@ umount_all(int useMtab)
extern int extern int
umount_main(int argc, char** argv) umount_main(int argc, char** argv)
{ {
int i=0;
char **foo=argv;
while(*foo) {
fprintf(stderr, "argv[%d]='%s'\n", i++, *foo);
foo++;
}
if (argc < 2) { if (argc < 2) {
usage( umount_usage); usage( umount_usage);