mirror of
https://github.com/sheumann/hush.git
synced 2024-08-26 12:29:04 +00:00
Wrote killall.
Adjusted mount, ps, utility.c, etc to handle my nifty new kernel patches the allow busybox to run perfectly without /proc. -Erik
This commit is contained in:
Erik Andersen
parent
e916d24805
commit
246cc6dddd
@ -1,5 +1,5 @@
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0.43
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* Wrote basename, and uptime.
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* Wrote basename, killall, and uptime.
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* Added freeramdisk, which will free up all memory associated
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with a ram disk. Contributed by Emanuele Caratti <wiz@iol.it>
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and then adjusted a bit by me.
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@ -35,8 +35,8 @@
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- Fixes to the makefile for handling "strip"
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* An initial telnet implementation was added by
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Randolph Chung <tausq@debian.org>.
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* Fixed a bug where "sed 's/foo/bar/g'" would go into an
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infinite loop.
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* Fixed a bug where "sed 's/foo/bar/g'" (i.e. a script w/o a "-e")
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would go into an infinite loop.
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-Erik Andersen
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@ -139,6 +139,9 @@ static const struct Applet applets[] = {
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#ifdef BB_KILL //bin
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{"kill", kill_main},
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#endif
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#ifdef BB_KILLALL //usr/bin
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{"killall", kill_main},
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#endif
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#ifdef BB_LENGTH //usr/bin
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{"length", length_main},
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#endif
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@ -139,6 +139,9 @@ static const struct Applet applets[] = {
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#ifdef BB_KILL //bin
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{"kill", kill_main},
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#endif
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#ifdef BB_KILLALL //usr/bin
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{"killall", kill_main},
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#endif
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#ifdef BB_LENGTH //usr/bin
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{"length", length_main},
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#endif
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@ -39,6 +39,7 @@
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// Don't turn BB_INSMOD on. It doesn't work.
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//#define BB_INSMOD
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#define BB_KILL
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#define BB_KILLALL
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#define BB_KLOGD
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//#define BB_LENGTH
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#define BB_LN
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@ -106,8 +107,17 @@
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// pretty/useful).
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//
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//
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// Turn this on to use Erik's very cool devps, devmtab,
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// etc. kernel drivers, thereby eliminating the need for
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// the /proc filesystem and thereby saving lots and lots
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// memory for more important things.
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// You can't use this and USE_PROCFS at the same time...
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//#define BB_FEATURE_USE_DEVPS_N_DEVMTAB
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//
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//
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// enable features that use the /proc filesystem (apps that
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// break without this will tell you on compile)...
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// You can't use this and DEVPS_N_DEVMTAB at the same time...
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#define BB_FEATURE_USE_PROCFS
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//
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// Use termios to manipulate the screen ('more' is prettier with this on)
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@ -161,6 +171,6 @@
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// just like an initrd does. Requires a kernel patch by Werner Almesberger.
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// ftp://icaftp.epfl.ch/pub/people/almesber/misc/umount-root-*.tar.gz
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#ifdef BB_MOUNT
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#define BB_FEATURE_INIT_CHROOT
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//#define BB_FEATURE_INIT_CHROOT
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#endif
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//
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@ -98,13 +98,11 @@ int chmod_chown_chgrp_main(int argc, char **argv)
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char *p;
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const char *appUsage;
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whichApp =
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(strcmp(*argv, "chown") == 0)?
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whichApp = (strcmp(*argv, "chown") == 0)?
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CHOWN_APP : (strcmp(*argv, "chmod") == 0)?
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CHMOD_APP : CHGRP_APP;
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appUsage =
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(whichApp == CHOWN_APP)?
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appUsage = (whichApp == CHOWN_APP)?
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chown_usage : (whichApp == CHMOD_APP) ? chmod_usage : chgrp_usage;
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if (argc < 2)
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2
halt.c
2
halt.c
@ -27,5 +27,5 @@
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extern int halt_main(int argc, char **argv)
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{
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/* don't assume init's pid == 1 */
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exit(kill(findInitPid(), SIGUSR1));
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exit(kill(findPidByName("init"), SIGUSR1));
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}
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@ -27,5 +27,5 @@
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extern int halt_main(int argc, char **argv)
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{
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/* don't assume init's pid == 1 */
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exit(kill(findInitPid(), SIGUSR1));
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exit(kill(findPidByName("init"), SIGUSR1));
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}
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@ -27,5 +27,5 @@
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extern int poweroff_main(int argc, char **argv)
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{
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/* don't assume init's pid == 1 */
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exit(kill(findInitPid(), SIGUSR2));
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exit(kill(findPidByName("init"), SIGUSR2));
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}
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@ -27,7 +27,7 @@
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extern int reboot_main(int argc, char **argv)
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{
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/* don't assume init's pid == 1 */
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exit(kill(findInitPid(), SIGINT));
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exit(kill(findPidByName("init"), SIGINT));
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}
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/*
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@ -203,7 +203,7 @@ extern char *mtab_next(void **iter);
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extern char *mtab_getinfo(const char *match, const char which);
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extern int check_wildcard_match(const char* text, const char* pattern);
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extern long getNum (const char *cp);
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extern pid_t findInitPid();
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extern pid_t findPidByName( char* pidName);
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extern void *xmalloc (size_t size);
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#if defined BB_INIT || defined BB_SYSLOGD
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extern int device_open(char *device, int mode);
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63
kill.c
63
kill.c
@ -24,6 +24,7 @@
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#include "internal.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <unistd.h>
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#include <signal.h>
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#include <ctype.h>
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@ -35,6 +36,14 @@ static const char *kill_usage =
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"Send a signal (default is SIGTERM) to the specified process(es).\n\n"
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"Options:\n" "\t-l\tList all signal names and numbers.\n\n";
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static const char *killall_usage =
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"killall [-signal] process-name [process-name ...]\n\n"
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"Send a signal (default is SIGTERM) to the specified process(es).\n\n"
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"Options:\n" "\t-l\tList all signal names and numbers.\n\n";
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#define KILL 0
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#define KILLALL 1
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struct signal_name {
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const char *name;
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@ -120,13 +129,19 @@ const struct signal_name signames[] = {
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extern int kill_main(int argc, char **argv)
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{
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int sig = SIGTERM;
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int whichApp, sig = SIGTERM;
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const char *appUsage;
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/* Figure out what we are trying to do here */
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whichApp = (strcmp(*argv, "killall") == 0)?
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KILLALL : KILL;
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appUsage = (whichApp == KILLALL)? killall_usage : kill_usage;
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argc--;
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argv++;
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/* Parse any options */
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if (argc < 1)
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usage(kill_usage);
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usage(appUsage);
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while (argc > 0 && **argv == '-') {
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while (*++(*argv)) {
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@ -150,7 +165,7 @@ extern int kill_main(int argc, char **argv)
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}
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break;
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case '-':
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usage(kill_usage);
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usage(appUsage);
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default:
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{
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if (isdigit(**argv)) {
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@ -186,32 +201,34 @@ extern int kill_main(int argc, char **argv)
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do_it_now:
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while (--argc >= 0) {
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int pid;
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struct stat statbuf;
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char pidpath[20] = "/proc/";
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if (whichApp == KILL) {
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/* Looks like they want to do a kill. Do that */
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while (--argc >= 0) {
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int pid;
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if (!isdigit(**argv)) {
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fprintf(stderr, "bad PID: %s\n", *argv);
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exit(FALSE);
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if (!isdigit(**argv))
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fatalError( "Bad PID: %s\n", strerror(errno));
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pid = strtol(*argv, NULL, 0);
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if (kill(pid, sig) != 0)
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fatalError( "Could not kill pid '%d': %s\n", pid, strerror(errno));
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argv++;
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}
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pid = atoi(*argv);
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snprintf(pidpath, 20, "/proc/%s/stat", *argv);
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if (stat(pidpath, &statbuf) != 0) {
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fprintf(stderr, "kill: (%d) - No such pid\n", pid);
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exit(FALSE);
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} else {
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/* Looks like they want to do a killall. Do that */
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while (--argc >= 0) {
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int pid;
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while((pid = findPidByName( *argv))) {
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if (kill(pid, sig) != 0)
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fatalError( "Could not kill pid '%d': %s\n", pid, strerror(errno));
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}
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argv++;
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}
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fprintf(stderr, "sig = %d\n", sig);
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if (kill(pid, sig) != 0) {
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perror(*argv);
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exit(FALSE);
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}
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argv++;
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}
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exit(TRUE);
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end:
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fprintf(stderr, "bad signal name: %s\n", *argv);
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exit(TRUE);
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fatalError( "bad signal name: %s\n", *argv);
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}
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86
mount.c
86
mount.c
@ -46,6 +46,10 @@
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#include <sys/mount.h>
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#include <ctype.h>
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#include <fstab.h>
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#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
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#include <linux/devmtab.h>
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#endif
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#if defined BB_FEATURE_MOUNT_LOOP
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#include <fcntl.h>
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@ -221,9 +225,8 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
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{
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int status = 0;
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char buf[255];
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#if defined BB_FEATURE_USE_PROCFS
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char buf[255];
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if (strcmp(filesystemType, "auto") == 0) {
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FILE *f = fopen("/proc/filesystems", "r");
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@ -251,6 +254,43 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
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}
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fclose(f);
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} else
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#endif
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#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
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if (strcmp(filesystemType, "auto") == 0) {
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int fd, i, numfilesystems;
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char device[] = "/dev/mtab";
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struct k_fstype *fslist;
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/* open device */
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fd = open(device, O_RDONLY);
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if (fd < 0)
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fatalError("open failed for `%s': %s\n", device, strerror (errno));
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/* How many filesystems? We need to know to allocate enough space */
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numfilesystems = ioctl (fd, DEVMTAB_COUNT_FILESYSTEMS);
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if (numfilesystems<0)
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fatalError("\nDEVMTAB_COUNT_FILESYSTEMS: %s\n", strerror (errno));
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fslist = (struct k_fstype *) calloc ( numfilesystems, sizeof(struct k_fstype));
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/* Grab the list of available filesystems */
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status = ioctl (fd, DEVMTAB_GET_FILESYSTEMS, fslist);
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if (status<0)
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fatalError("\nDEVMTAB_GET_FILESYSTEMS: %s\n", strerror (errno));
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/* Walk the list trying to mount filesystems
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* that do not claim to be nodev filesystems */
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for( i = 0 ; i < numfilesystems ; i++) {
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if (fslist[i].mnt_nodev)
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continue;
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status = do_mount(blockDevice, directory, fslist[i].mnt_type,
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flags | MS_MGC_VAL, string_flags,
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useMtab, fakeIt, mtab_opts);
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if (status == TRUE)
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break;
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}
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free( fslist);
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close(fd);
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} else
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#endif
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{
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status = do_mount(blockDevice, directory, filesystemType,
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@ -285,6 +325,39 @@ extern int mount_main(int argc, char **argv)
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/* Only compiled in if BB_MTAB is not defined */
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whine_if_fstab_is_missing();
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#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
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if (argc == 1) {
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int fd, i, numfilesystems;
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char device[] = "/dev/mtab";
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struct k_mntent *mntentlist;
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/* open device */
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fd = open(device, O_RDONLY);
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if (fd < 0)
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fatalError("open failed for `%s': %s\n", device, strerror (errno));
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/* How many mounted filesystems? We need to know to
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* allocate enough space for later... */
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numfilesystems = ioctl (fd, DEVMTAB_COUNT_MOUNTS);
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if (numfilesystems<0)
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fatalError( "\nDEVMTAB_COUNT_MOUNTS: %s\n", strerror (errno));
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mntentlist = (struct k_mntent *) calloc ( numfilesystems, sizeof(struct k_mntent));
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/* Grab the list of mounted filesystems */
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if (ioctl (fd, DEVMTAB_GET_MOUNTS, mntentlist)<0)
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fatalError( "\nDEVMTAB_GET_MOUNTS: %s\n", strerror (errno));
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for( i = 0 ; i < numfilesystems ; i++) {
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fprintf( stdout, "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname,
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mntentlist[i].mnt_dir, mntentlist[i].mnt_type,
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mntentlist[i].mnt_opts, mntentlist[i].mnt_freq,
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mntentlist[i].mnt_passno);
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}
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free( mntentlist);
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close(fd);
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exit(TRUE);
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}
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#else
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if (argc == 1) {
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FILE *mountTable = setmntent(mtab_file, "r");
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@ -310,7 +383,7 @@ extern int mount_main(int argc, char **argv)
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}
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exit(TRUE);
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}
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#endif
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/* Parse options */
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i = --argc;
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@ -372,10 +445,9 @@ extern int mount_main(int argc, char **argv)
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struct mntent *m;
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FILE *f = setmntent("/etc/fstab", "r");
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if (f == NULL) {
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perror("/etc/fstab");
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exit(FALSE);
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}
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if (f == NULL)
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fatalError( "\nCannot ream /etc/fstab: %s\n", strerror (errno));
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while ((m = getmntent(f)) != NULL) {
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// If the file system isn't noauto,
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// and isn't swap or nfs, then mount it
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@ -27,5 +27,5 @@
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extern int poweroff_main(int argc, char **argv)
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{
|
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/* don't assume init's pid == 1 */
|
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exit(kill(findInitPid(), SIGUSR2));
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exit(kill(findPidByName("init"), SIGUSR2));
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}
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@ -24,6 +24,7 @@
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#include "internal.h"
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#include <stdio.h>
|
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#include <stdlib.h>
|
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#include <errno.h>
|
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#include <unistd.h>
|
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#include <signal.h>
|
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#include <ctype.h>
|
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@ -35,6 +36,14 @@ static const char *kill_usage =
|
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"Send a signal (default is SIGTERM) to the specified process(es).\n\n"
|
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"Options:\n" "\t-l\tList all signal names and numbers.\n\n";
|
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|
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static const char *killall_usage =
|
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"killall [-signal] process-name [process-name ...]\n\n"
|
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"Send a signal (default is SIGTERM) to the specified process(es).\n\n"
|
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"Options:\n" "\t-l\tList all signal names and numbers.\n\n";
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|
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|
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#define KILL 0
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#define KILLALL 1
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|
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struct signal_name {
|
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const char *name;
|
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@ -120,13 +129,19 @@ const struct signal_name signames[] = {
|
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|
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extern int kill_main(int argc, char **argv)
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{
|
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int sig = SIGTERM;
|
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int whichApp, sig = SIGTERM;
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const char *appUsage;
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|
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/* Figure out what we are trying to do here */
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whichApp = (strcmp(*argv, "killall") == 0)?
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KILLALL : KILL;
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appUsage = (whichApp == KILLALL)? killall_usage : kill_usage;
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argc--;
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argv++;
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/* Parse any options */
|
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if (argc < 1)
|
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usage(kill_usage);
|
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usage(appUsage);
|
||||
|
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while (argc > 0 && **argv == '-') {
|
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while (*++(*argv)) {
|
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@ -150,7 +165,7 @@ extern int kill_main(int argc, char **argv)
|
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}
|
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break;
|
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case '-':
|
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usage(kill_usage);
|
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usage(appUsage);
|
||||
default:
|
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{
|
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if (isdigit(**argv)) {
|
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@ -186,32 +201,34 @@ extern int kill_main(int argc, char **argv)
|
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|
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do_it_now:
|
||||
|
||||
while (--argc >= 0) {
|
||||
int pid;
|
||||
struct stat statbuf;
|
||||
char pidpath[20] = "/proc/";
|
||||
if (whichApp == KILL) {
|
||||
/* Looks like they want to do a kill. Do that */
|
||||
while (--argc >= 0) {
|
||||
int pid;
|
||||
|
||||
if (!isdigit(**argv)) {
|
||||
fprintf(stderr, "bad PID: %s\n", *argv);
|
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exit(FALSE);
|
||||
if (!isdigit(**argv))
|
||||
fatalError( "Bad PID: %s\n", strerror(errno));
|
||||
pid = strtol(*argv, NULL, 0);
|
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if (kill(pid, sig) != 0)
|
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fatalError( "Could not kill pid '%d': %s\n", pid, strerror(errno));
|
||||
argv++;
|
||||
}
|
||||
pid = atoi(*argv);
|
||||
snprintf(pidpath, 20, "/proc/%s/stat", *argv);
|
||||
if (stat(pidpath, &statbuf) != 0) {
|
||||
fprintf(stderr, "kill: (%d) - No such pid\n", pid);
|
||||
exit(FALSE);
|
||||
} else {
|
||||
/* Looks like they want to do a killall. Do that */
|
||||
while (--argc >= 0) {
|
||||
int pid;
|
||||
|
||||
while((pid = findPidByName( *argv))) {
|
||||
if (kill(pid, sig) != 0)
|
||||
fatalError( "Could not kill pid '%d': %s\n", pid, strerror(errno));
|
||||
}
|
||||
argv++;
|
||||
}
|
||||
fprintf(stderr, "sig = %d\n", sig);
|
||||
if (kill(pid, sig) != 0) {
|
||||
perror(*argv);
|
||||
exit(FALSE);
|
||||
}
|
||||
argv++;
|
||||
}
|
||||
|
||||
exit(TRUE);
|
||||
|
||||
|
||||
end:
|
||||
fprintf(stderr, "bad signal name: %s\n", *argv);
|
||||
exit(TRUE);
|
||||
fatalError( "bad signal name: %s\n", *argv);
|
||||
}
|
||||
|
||||
150
procps/ps.c
150
procps/ps.c
@ -1,34 +1,47 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* Mini ps implementation for busybox
|
||||
* Mini ps implementation(s) for busybox
|
||||
*
|
||||
* Copyright (C) 1999 by Lineo, inc. Written by Erik Andersen
|
||||
* <andersen@lineo.com>, <andersee@debian.org>
|
||||
*
|
||||
*
|
||||
* Copyright (C) 1999 by Lineo, inc.
|
||||
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
|
||||
* This contains _two_ implementations of ps for Linux. One uses the
|
||||
* traditional /proc virtual filesystem, and the other use the devps kernel
|
||||
* driver (written by Erik Andersen to avoid using /proc thereby saving 100k+).
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the Free
|
||||
* Software Foundation; either version 2 of the License, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along with
|
||||
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
||||
* Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include "internal.h"
|
||||
#include <stdio.h>
|
||||
#include <unistd.h>
|
||||
#include <dirent.h>
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#if ! defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
|
||||
|
||||
/* The following is the first ps implementation --
|
||||
* the one using the /proc virtual filesystem.
|
||||
*/
|
||||
|
||||
#if ! defined BB_FEATURE_USE_PROCFS
|
||||
#error Sorry, I depend on the /proc filesystem right now.
|
||||
#endif
|
||||
@ -105,16 +118,12 @@ extern int ps_main(int argc, char **argv)
|
||||
char groupName[10] = "";
|
||||
int i, c;
|
||||
|
||||
if (argc > 1 && **(argv + 1) == '-') {
|
||||
usage
|
||||
("ps\n\nReport process status\n\nThis version of ps accepts no options.\n");
|
||||
}
|
||||
if (argc > 1 && **(argv + 1) == '-')
|
||||
usage ("ps\n\nReport process status\n\nThis version of ps accepts no options.\n");
|
||||
|
||||
dir = opendir("/proc");
|
||||
if (!dir) {
|
||||
perror("Can't open /proc");
|
||||
exit(FALSE);
|
||||
}
|
||||
if (!dir)
|
||||
fatalError("Can't open /proc");
|
||||
|
||||
fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid",
|
||||
"State", "Command");
|
||||
@ -131,9 +140,9 @@ extern int ps_main(int argc, char **argv)
|
||||
|
||||
/* Make some adjustments as needed */
|
||||
my_getpwuid(uidName, p.ruid);
|
||||
my_getgrgid(groupName, p.rgid);
|
||||
if (*uidName == '\0')
|
||||
sprintf(uidName, "%d", p.ruid);
|
||||
my_getgrgid(groupName, p.rgid);
|
||||
if (*groupName == '\0')
|
||||
sprintf(groupName, "%d", p.rgid);
|
||||
|
||||
@ -141,10 +150,8 @@ extern int ps_main(int argc, char **argv)
|
||||
p.state);
|
||||
sprintf(path, "/proc/%s/cmdline", entry->d_name);
|
||||
file = fopen(path, "r");
|
||||
if (file == NULL) {
|
||||
perror(path);
|
||||
exit(FALSE);
|
||||
}
|
||||
if (file == NULL)
|
||||
fatalError("Can't open %s: %s\n", path, strerror(errno));
|
||||
i = 0;
|
||||
while (((c = getc(file)) != EOF) && (i < 53)) {
|
||||
i++;
|
||||
@ -159,3 +166,90 @@ extern int ps_main(int argc, char **argv)
|
||||
closedir(dir);
|
||||
exit(TRUE);
|
||||
}
|
||||
|
||||
|
||||
#else /* BB_FEATURE_USE_DEVPS_N_DEVMTAB */
|
||||
|
||||
|
||||
/* The following is the second ps implementation --
|
||||
* this one uses the nifty new devps kernel device.
|
||||
*/
|
||||
|
||||
#include <sys/ioctl.h>
|
||||
#include <linux/devps.h>
|
||||
|
||||
|
||||
extern int ps_main(int argc, char **argv)
|
||||
{
|
||||
char device[] = "/dev/ps";
|
||||
int i, fd;
|
||||
pid_t num_pids;
|
||||
pid_t* pid_array = NULL;
|
||||
struct pid_info info;
|
||||
char uidName[10] = "";
|
||||
char groupName[10] = "";
|
||||
|
||||
if (argc > 1 && **(argv + 1) == '-')
|
||||
usage("ps-devps\n\nReport process status\n\nThis version of ps accepts no options.\n\n");
|
||||
|
||||
/* open device */
|
||||
fd = open(device, O_RDONLY);
|
||||
if (fd < 0)
|
||||
fatalError( "open failed for `%s': %s\n", device, strerror (errno));
|
||||
|
||||
/* Find out how many processes there are */
|
||||
if (ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids)<0)
|
||||
fatalError( "\nDEVPS_GET_PID_LIST: %s\n", strerror (errno));
|
||||
|
||||
/* Allocate some memory -- grab a few extras just in case
|
||||
* some new processes start up while we wait. The kernel will
|
||||
* just ignore any extras if we give it too many, and will trunc.
|
||||
* the list if we give it too few. */
|
||||
pid_array = (pid_t*) calloc( num_pids+10, sizeof(pid_t));
|
||||
pid_array[0] = num_pids+10;
|
||||
|
||||
/* Now grab the pid list */
|
||||
if (ioctl (fd, DEVPS_GET_PID_LIST, pid_array)<0)
|
||||
fatalError("\nDEVPS_GET_PID_LIST: %s\n", strerror (errno));
|
||||
|
||||
/* Print up a ps listing */
|
||||
fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid",
|
||||
"State", "Command");
|
||||
|
||||
for (i=1; i<pid_array[0] ; i++) {
|
||||
uidName[0] = '\0';
|
||||
groupName[0] = '\0';
|
||||
info.pid = pid_array[i];
|
||||
|
||||
if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0)
|
||||
fatalError("\nDEVPS_GET_PID_INFO: %s\n", strerror (errno));
|
||||
|
||||
/* Make some adjustments as needed */
|
||||
my_getpwuid(uidName, info.euid);
|
||||
if (*uidName == '\0')
|
||||
sprintf(uidName, "%ld", info.euid);
|
||||
my_getgrgid(groupName, info.egid);
|
||||
if (*groupName == '\0')
|
||||
sprintf(groupName, "%ld", info.egid);
|
||||
|
||||
fprintf(stdout, "%5d %-8s %-8s %c ", info.pid, uidName, groupName, info.state);
|
||||
|
||||
if (strlen(info.command_line) > 1)
|
||||
fprintf(stdout, "%s\n", info.command_line);
|
||||
else
|
||||
fprintf(stdout, "[%s]\n", info.name);
|
||||
|
||||
}
|
||||
|
||||
/* Free memory */
|
||||
free( pid_array);
|
||||
|
||||
/* close device */
|
||||
if (close (fd) != 0)
|
||||
fatalError("close failed for `%s': %s\n", device, strerror (errno));
|
||||
|
||||
exit (0);
|
||||
}
|
||||
|
||||
#endif /* BB_FEATURE_USE_DEVPS_N_DEVMTAB */
|
||||
|
||||
|
||||
150
ps.c
150
ps.c
@ -1,34 +1,47 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* Mini ps implementation for busybox
|
||||
* Mini ps implementation(s) for busybox
|
||||
*
|
||||
* Copyright (C) 1999 by Lineo, inc. Written by Erik Andersen
|
||||
* <andersen@lineo.com>, <andersee@debian.org>
|
||||
*
|
||||
*
|
||||
* Copyright (C) 1999 by Lineo, inc.
|
||||
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
|
||||
* This contains _two_ implementations of ps for Linux. One uses the
|
||||
* traditional /proc virtual filesystem, and the other use the devps kernel
|
||||
* driver (written by Erik Andersen to avoid using /proc thereby saving 100k+).
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the Free
|
||||
* Software Foundation; either version 2 of the License, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along with
|
||||
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
||||
* Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include "internal.h"
|
||||
#include <stdio.h>
|
||||
#include <unistd.h>
|
||||
#include <dirent.h>
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#if ! defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
|
||||
|
||||
/* The following is the first ps implementation --
|
||||
* the one using the /proc virtual filesystem.
|
||||
*/
|
||||
|
||||
#if ! defined BB_FEATURE_USE_PROCFS
|
||||
#error Sorry, I depend on the /proc filesystem right now.
|
||||
#endif
|
||||
@ -105,16 +118,12 @@ extern int ps_main(int argc, char **argv)
|
||||
char groupName[10] = "";
|
||||
int i, c;
|
||||
|
||||
if (argc > 1 && **(argv + 1) == '-') {
|
||||
usage
|
||||
("ps\n\nReport process status\n\nThis version of ps accepts no options.\n");
|
||||
}
|
||||
if (argc > 1 && **(argv + 1) == '-')
|
||||
usage ("ps\n\nReport process status\n\nThis version of ps accepts no options.\n");
|
||||
|
||||
dir = opendir("/proc");
|
||||
if (!dir) {
|
||||
perror("Can't open /proc");
|
||||
exit(FALSE);
|
||||
}
|
||||
if (!dir)
|
||||
fatalError("Can't open /proc");
|
||||
|
||||
fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid",
|
||||
"State", "Command");
|
||||
@ -131,9 +140,9 @@ extern int ps_main(int argc, char **argv)
|
||||
|
||||
/* Make some adjustments as needed */
|
||||
my_getpwuid(uidName, p.ruid);
|
||||
my_getgrgid(groupName, p.rgid);
|
||||
if (*uidName == '\0')
|
||||
sprintf(uidName, "%d", p.ruid);
|
||||
my_getgrgid(groupName, p.rgid);
|
||||
if (*groupName == '\0')
|
||||
sprintf(groupName, "%d", p.rgid);
|
||||
|
||||
@ -141,10 +150,8 @@ extern int ps_main(int argc, char **argv)
|
||||
p.state);
|
||||
sprintf(path, "/proc/%s/cmdline", entry->d_name);
|
||||
file = fopen(path, "r");
|
||||
if (file == NULL) {
|
||||
perror(path);
|
||||
exit(FALSE);
|
||||
}
|
||||
if (file == NULL)
|
||||
fatalError("Can't open %s: %s\n", path, strerror(errno));
|
||||
i = 0;
|
||||
while (((c = getc(file)) != EOF) && (i < 53)) {
|
||||
i++;
|
||||
@ -159,3 +166,90 @@ extern int ps_main(int argc, char **argv)
|
||||
closedir(dir);
|
||||
exit(TRUE);
|
||||
}
|
||||
|
||||
|
||||
#else /* BB_FEATURE_USE_DEVPS_N_DEVMTAB */
|
||||
|
||||
|
||||
/* The following is the second ps implementation --
|
||||
* this one uses the nifty new devps kernel device.
|
||||
*/
|
||||
|
||||
#include <sys/ioctl.h>
|
||||
#include <linux/devps.h>
|
||||
|
||||
|
||||
extern int ps_main(int argc, char **argv)
|
||||
{
|
||||
char device[] = "/dev/ps";
|
||||
int i, fd;
|
||||
pid_t num_pids;
|
||||
pid_t* pid_array = NULL;
|
||||
struct pid_info info;
|
||||
char uidName[10] = "";
|
||||
char groupName[10] = "";
|
||||
|
||||
if (argc > 1 && **(argv + 1) == '-')
|
||||
usage("ps-devps\n\nReport process status\n\nThis version of ps accepts no options.\n\n");
|
||||
|
||||
/* open device */
|
||||
fd = open(device, O_RDONLY);
|
||||
if (fd < 0)
|
||||
fatalError( "open failed for `%s': %s\n", device, strerror (errno));
|
||||
|
||||
/* Find out how many processes there are */
|
||||
if (ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids)<0)
|
||||
fatalError( "\nDEVPS_GET_PID_LIST: %s\n", strerror (errno));
|
||||
|
||||
/* Allocate some memory -- grab a few extras just in case
|
||||
* some new processes start up while we wait. The kernel will
|
||||
* just ignore any extras if we give it too many, and will trunc.
|
||||
* the list if we give it too few. */
|
||||
pid_array = (pid_t*) calloc( num_pids+10, sizeof(pid_t));
|
||||
pid_array[0] = num_pids+10;
|
||||
|
||||
/* Now grab the pid list */
|
||||
if (ioctl (fd, DEVPS_GET_PID_LIST, pid_array)<0)
|
||||
fatalError("\nDEVPS_GET_PID_LIST: %s\n", strerror (errno));
|
||||
|
||||
/* Print up a ps listing */
|
||||
fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid",
|
||||
"State", "Command");
|
||||
|
||||
for (i=1; i<pid_array[0] ; i++) {
|
||||
uidName[0] = '\0';
|
||||
groupName[0] = '\0';
|
||||
info.pid = pid_array[i];
|
||||
|
||||
if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0)
|
||||
fatalError("\nDEVPS_GET_PID_INFO: %s\n", strerror (errno));
|
||||
|
||||
/* Make some adjustments as needed */
|
||||
my_getpwuid(uidName, info.euid);
|
||||
if (*uidName == '\0')
|
||||
sprintf(uidName, "%ld", info.euid);
|
||||
my_getgrgid(groupName, info.egid);
|
||||
if (*groupName == '\0')
|
||||
sprintf(groupName, "%ld", info.egid);
|
||||
|
||||
fprintf(stdout, "%5d %-8s %-8s %c ", info.pid, uidName, groupName, info.state);
|
||||
|
||||
if (strlen(info.command_line) > 1)
|
||||
fprintf(stdout, "%s\n", info.command_line);
|
||||
else
|
||||
fprintf(stdout, "[%s]\n", info.name);
|
||||
|
||||
}
|
||||
|
||||
/* Free memory */
|
||||
free( pid_array);
|
||||
|
||||
/* close device */
|
||||
if (close (fd) != 0)
|
||||
fatalError("close failed for `%s': %s\n", device, strerror (errno));
|
||||
|
||||
exit (0);
|
||||
}
|
||||
|
||||
#endif /* BB_FEATURE_USE_DEVPS_N_DEVMTAB */
|
||||
|
||||
|
||||
2
reboot.c
2
reboot.c
@ -27,7 +27,7 @@
|
||||
extern int reboot_main(int argc, char **argv)
|
||||
{
|
||||
/* don't assume init's pid == 1 */
|
||||
exit(kill(findInitPid(), SIGINT));
|
||||
exit(kill(findPidByName("init"), SIGINT));
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -46,6 +46,10 @@
|
||||
#include <sys/mount.h>
|
||||
#include <ctype.h>
|
||||
#include <fstab.h>
|
||||
#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
|
||||
#include <linux/devmtab.h>
|
||||
#endif
|
||||
|
||||
|
||||
#if defined BB_FEATURE_MOUNT_LOOP
|
||||
#include <fcntl.h>
|
||||
@ -221,9 +225,8 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
|
||||
{
|
||||
int status = 0;
|
||||
|
||||
char buf[255];
|
||||
|
||||
#if defined BB_FEATURE_USE_PROCFS
|
||||
char buf[255];
|
||||
if (strcmp(filesystemType, "auto") == 0) {
|
||||
FILE *f = fopen("/proc/filesystems", "r");
|
||||
|
||||
@ -251,6 +254,43 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
|
||||
}
|
||||
fclose(f);
|
||||
} else
|
||||
#endif
|
||||
#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
|
||||
if (strcmp(filesystemType, "auto") == 0) {
|
||||
int fd, i, numfilesystems;
|
||||
char device[] = "/dev/mtab";
|
||||
struct k_fstype *fslist;
|
||||
|
||||
/* open device */
|
||||
fd = open(device, O_RDONLY);
|
||||
if (fd < 0)
|
||||
fatalError("open failed for `%s': %s\n", device, strerror (errno));
|
||||
|
||||
/* How many filesystems? We need to know to allocate enough space */
|
||||
numfilesystems = ioctl (fd, DEVMTAB_COUNT_FILESYSTEMS);
|
||||
if (numfilesystems<0)
|
||||
fatalError("\nDEVMTAB_COUNT_FILESYSTEMS: %s\n", strerror (errno));
|
||||
fslist = (struct k_fstype *) calloc ( numfilesystems, sizeof(struct k_fstype));
|
||||
|
||||
/* Grab the list of available filesystems */
|
||||
status = ioctl (fd, DEVMTAB_GET_FILESYSTEMS, fslist);
|
||||
if (status<0)
|
||||
fatalError("\nDEVMTAB_GET_FILESYSTEMS: %s\n", strerror (errno));
|
||||
|
||||
/* Walk the list trying to mount filesystems
|
||||
* that do not claim to be nodev filesystems */
|
||||
for( i = 0 ; i < numfilesystems ; i++) {
|
||||
if (fslist[i].mnt_nodev)
|
||||
continue;
|
||||
status = do_mount(blockDevice, directory, fslist[i].mnt_type,
|
||||
flags | MS_MGC_VAL, string_flags,
|
||||
useMtab, fakeIt, mtab_opts);
|
||||
if (status == TRUE)
|
||||
break;
|
||||
}
|
||||
free( fslist);
|
||||
close(fd);
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
status = do_mount(blockDevice, directory, filesystemType,
|
||||
@ -285,6 +325,39 @@ extern int mount_main(int argc, char **argv)
|
||||
/* Only compiled in if BB_MTAB is not defined */
|
||||
whine_if_fstab_is_missing();
|
||||
|
||||
#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
|
||||
if (argc == 1) {
|
||||
int fd, i, numfilesystems;
|
||||
char device[] = "/dev/mtab";
|
||||
struct k_mntent *mntentlist;
|
||||
|
||||
/* open device */
|
||||
fd = open(device, O_RDONLY);
|
||||
if (fd < 0)
|
||||
fatalError("open failed for `%s': %s\n", device, strerror (errno));
|
||||
|
||||
/* How many mounted filesystems? We need to know to
|
||||
* allocate enough space for later... */
|
||||
numfilesystems = ioctl (fd, DEVMTAB_COUNT_MOUNTS);
|
||||
if (numfilesystems<0)
|
||||
fatalError( "\nDEVMTAB_COUNT_MOUNTS: %s\n", strerror (errno));
|
||||
mntentlist = (struct k_mntent *) calloc ( numfilesystems, sizeof(struct k_mntent));
|
||||
|
||||
/* Grab the list of mounted filesystems */
|
||||
if (ioctl (fd, DEVMTAB_GET_MOUNTS, mntentlist)<0)
|
||||
fatalError( "\nDEVMTAB_GET_MOUNTS: %s\n", strerror (errno));
|
||||
|
||||
for( i = 0 ; i < numfilesystems ; i++) {
|
||||
fprintf( stdout, "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname,
|
||||
mntentlist[i].mnt_dir, mntentlist[i].mnt_type,
|
||||
mntentlist[i].mnt_opts, mntentlist[i].mnt_freq,
|
||||
mntentlist[i].mnt_passno);
|
||||
}
|
||||
free( mntentlist);
|
||||
close(fd);
|
||||
exit(TRUE);
|
||||
}
|
||||
#else
|
||||
if (argc == 1) {
|
||||
FILE *mountTable = setmntent(mtab_file, "r");
|
||||
|
||||
@ -310,7 +383,7 @@ extern int mount_main(int argc, char **argv)
|
||||
}
|
||||
exit(TRUE);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/* Parse options */
|
||||
i = --argc;
|
||||
@ -372,10 +445,9 @@ extern int mount_main(int argc, char **argv)
|
||||
struct mntent *m;
|
||||
FILE *f = setmntent("/etc/fstab", "r");
|
||||
|
||||
if (f == NULL) {
|
||||
perror("/etc/fstab");
|
||||
exit(FALSE);
|
||||
}
|
||||
if (f == NULL)
|
||||
fatalError( "\nCannot ream /etc/fstab: %s\n", strerror (errno));
|
||||
|
||||
while ((m = getmntent(f)) != NULL) {
|
||||
// If the file system isn't noauto,
|
||||
// and isn't swap or nfs, then mount it
|
||||
|
||||
105
utility.c
105
utility.c
@ -56,6 +56,13 @@
|
||||
#include <linux/loop.h>
|
||||
#endif
|
||||
|
||||
/* Busybox mount uses either /proc/filesystems or /dev/mtab to get the
|
||||
* list of available filesystems used for the -t auto option */
|
||||
#if defined BB_FEATURE_USE_PROCFS && defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
|
||||
//#error Sorry, but busybox can't use both /proc and /dev/ps at the same time -- Pick one and try again.
|
||||
#error "Sorry, but busybox can't use both /proc and /dev/ps at the same time -- Pick one and try again."
|
||||
#endif
|
||||
|
||||
|
||||
#if defined BB_MOUNT || defined BB_UMOUNT || defined BB_DF
|
||||
# if defined BB_FEATURE_USE_PROCFS
|
||||
@ -64,9 +71,13 @@ const char mtab_file[] = "/proc/mounts";
|
||||
# if defined BB_MTAB
|
||||
const char mtab_file[] = "/etc/mtab";
|
||||
# else
|
||||
# error With (BB_MOUNT||BB_UMOUNT||BB_DF) defined, you must define either BB_MTAB or BB_FEATURE_USE_PROCFS
|
||||
# if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
|
||||
const char mtab_file[] = "/dev/mtab";
|
||||
# else
|
||||
# error With (BB_MOUNT||BB_UMOUNT||BB_DF) defined, you must define either BB_MTAB or ( BB_FEATURE_USE_PROCFS | BB_FEATURE_USE_DEVPS_N_DEVMTAB)
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
|
||||
|
||||
@ -1238,29 +1249,96 @@ extern int device_open(char *device, int mode)
|
||||
|
||||
#if defined BB_INIT || defined BB_HALT || defined BB_REBOOT
|
||||
|
||||
#if ! defined BB_FEATURE_USE_PROCFS
|
||||
#error Sorry, I depend on the /proc filesystem right now.
|
||||
#ifdef BB_FEATURE_USE_DEVPS_N_DEVMTAB
|
||||
#include <linux/devps.h>
|
||||
#endif
|
||||
/* findInitPid()
|
||||
|
||||
#if defined BB_FEATURE_USE_DEVPS_N_DEVMTAB
|
||||
/* findPidByName()
|
||||
*
|
||||
* This finds the pid of init (which is not always 1).
|
||||
* Currently, it's implemented by rummaging through the proc filesystem.
|
||||
* This finds the pid of the specified process,
|
||||
* by using the /dev/ps device driver.
|
||||
*
|
||||
* [return]
|
||||
* 0 failure
|
||||
* pid when init's pid is found.
|
||||
* pid when the pid is found.
|
||||
*/
|
||||
extern pid_t findInitPid()
|
||||
extern pid_t findPidByName( char* pidName)
|
||||
{
|
||||
pid_t init_pid;
|
||||
int fd, i;
|
||||
char device[] = "/dev/ps";
|
||||
pid_t thePid = 0;
|
||||
pid_t num_pids;
|
||||
pid_t* pid_array = NULL;
|
||||
|
||||
/* open device */
|
||||
fd = open(device, O_RDONLY);
|
||||
if (fd < 0)
|
||||
fatalError( "open failed for `%s': %s\n", device, strerror (errno));
|
||||
|
||||
/* Find out how many processes there are */
|
||||
if (ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids)<0)
|
||||
fatalError( "\nDEVPS_GET_PID_LIST: %s\n", strerror (errno));
|
||||
|
||||
/* Allocate some memory -- grab a few extras just in case
|
||||
* some new processes start up while we wait. The kernel will
|
||||
* just ignore any extras if we give it too many, and will trunc.
|
||||
* the list if we give it too few. */
|
||||
pid_array = (pid_t*) calloc( num_pids+10, sizeof(pid_t));
|
||||
pid_array[0] = num_pids+10;
|
||||
|
||||
/* Now grab the pid list */
|
||||
if (ioctl (fd, DEVPS_GET_PID_LIST, pid_array)<0)
|
||||
fatalError( "\nDEVPS_GET_PID_LIST: %s\n", strerror (errno));
|
||||
|
||||
/* Now search for a match */
|
||||
for (i=1; i<pid_array[0] ; i++) {
|
||||
struct pid_info info;
|
||||
|
||||
info.pid = pid_array[i];
|
||||
if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0)
|
||||
fatalError( "\nDEVPS_GET_PID_INFO: %s\n", strerror (errno));
|
||||
|
||||
if ((strstr(info.command_line, pidName) != NULL)) {
|
||||
thePid = info.pid;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Free memory */
|
||||
free( pid_array);
|
||||
|
||||
/* close device */
|
||||
if (close (fd) != 0)
|
||||
fatalError( "close failed for `%s': %s\n",device, strerror (errno));
|
||||
|
||||
return thePid;
|
||||
}
|
||||
#else /* BB_FEATURE_USE_DEVPS_N_DEVMTAB */
|
||||
#if ! defined BB_FEATURE_USE_PROCFS
|
||||
#error Sorry, I depend on the /proc filesystem right now.
|
||||
#endif
|
||||
/* findPidByName()
|
||||
*
|
||||
* This finds the pid of the specified process.
|
||||
* Currently, it's implemented by rummaging through
|
||||
* the proc filesystem.
|
||||
*
|
||||
* [return]
|
||||
* 0 failure
|
||||
* pid when the pid is found.
|
||||
*/
|
||||
extern pid_t findPidByName( char* pidName)
|
||||
{
|
||||
pid_t thePid;
|
||||
char filename[256];
|
||||
char buffer[256];
|
||||
|
||||
/* no need to opendir ;) */
|
||||
for (init_pid = 1; init_pid < 65536; init_pid++) {
|
||||
for (thePid = 1; thePid < 65536; thePid++) {
|
||||
FILE *status;
|
||||
|
||||
sprintf(filename, "/proc/%d/cmdline", init_pid);
|
||||
sprintf(filename, "/proc/%d/cmdline", thePid);
|
||||
status = fopen(filename, "r");
|
||||
if (!status) {
|
||||
continue;
|
||||
@ -1268,12 +1346,13 @@ extern pid_t findInitPid()
|
||||
fgets(buffer, 256, status);
|
||||
fclose(status);
|
||||
|
||||
if ((strstr(buffer, "init") != NULL)) {
|
||||
return init_pid;
|
||||
if ((strstr(buffer, pidName) != NULL)) {
|
||||
return thePid;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
#endif /* BB_FEATURE_USE_DEVPS_N_DEVMTAB */
|
||||
#endif /* BB_INIT || BB_HALT || BB_REBOOT */
|
||||
|
||||
#if defined BB_GUNZIP \
|
||||
|
||||
Loading…
Reference in New Issue
Block a user