From 73b16af8feec390afbabd9356d6e5e83c0390838 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Fri, 15 May 2015 10:20:47 +0200 Subject: busybox: imported from http://www.busybox.net/downloads/busybox-1.13.3.tar.bz2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Bjørn Mork --- debianutils/Config.in | 84 ++++++++ debianutils/Kbuild | 12 ++ debianutils/mktemp.c | 69 +++++++ debianutils/pipe_progress.c | 39 ++++ debianutils/run_parts.c | 173 ++++++++++++++++ debianutils/start_stop_daemon.c | 447 ++++++++++++++++++++++++++++++++++++++++ debianutils/which.c | 90 ++++++++ 7 files changed, 914 insertions(+) create mode 100644 debianutils/Config.in create mode 100644 debianutils/Kbuild create mode 100644 debianutils/mktemp.c create mode 100644 debianutils/pipe_progress.c create mode 100644 debianutils/run_parts.c create mode 100644 debianutils/start_stop_daemon.c create mode 100644 debianutils/which.c (limited to 'debianutils') diff --git a/debianutils/Config.in b/debianutils/Config.in new file mode 100644 index 0000000..8deb38f --- /dev/null +++ b/debianutils/Config.in @@ -0,0 +1,84 @@ +# +# For a description of the syntax of this configuration file, +# see scripts/kbuild/config-language.txt. +# + +menu "Debian Utilities" + +config MKTEMP + bool "mktemp" + default n + help + mktemp is used to create unique temporary files + +config PIPE_PROGRESS + bool "pipe_progress" + default n + help + Display a dot to indicate pipe activity. + +config RUN_PARTS + bool "run-parts" + default n + help + run-parts is a utility designed to run all the scripts in a directory. + + It is useful to set up a directory like cron.daily, where you need to + execute all the scripts in that directory. + + In this implementation of run-parts some features (such as report + mode) are not implemented. + + Unless you know that run-parts is used in some of your scripts + you can safely say N here. + +config FEATURE_RUN_PARTS_LONG_OPTIONS + bool "Enable long options" + default n + depends on RUN_PARTS && GETOPT_LONG + help + Support long options for the run-parts applet. + +config FEATURE_RUN_PARTS_FANCY + bool "Support additional arguments" + default n + depends on RUN_PARTS + help + Support additional options: + -l --list print the names of the all matching files (not + limited to executables), but don't actually run them. + +config START_STOP_DAEMON + bool "start-stop-daemon" + default n + help + start-stop-daemon is used to control the creation and + termination of system-level processes, usually the ones + started during the startup of the system. + +config FEATURE_START_STOP_DAEMON_FANCY + bool "Support additional arguments" + default n + depends on START_STOP_DAEMON + help + Support additional arguments. + -o|--oknodo ignored since we exit with 0 anyway + -v|--verbose + -N|--nicelevel N + +config FEATURE_START_STOP_DAEMON_LONG_OPTIONS + bool "Enable long options" + default n + depends on START_STOP_DAEMON && GETOPT_LONG + help + Support long options for the start-stop-daemon applet. + +config WHICH + bool "which" + default n + help + which is used to find programs in your PATH and + print out their pathnames. + +endmenu + diff --git a/debianutils/Kbuild b/debianutils/Kbuild new file mode 100644 index 0000000..bcf6126 --- /dev/null +++ b/debianutils/Kbuild @@ -0,0 +1,12 @@ +# Makefile for busybox +# +# Copyright (C) 1999-2005 by Erik Andersen +# +# Licensed under the GPL v2, see the file LICENSE in this tarball. + +lib-y:= +lib-$(CONFIG_MKTEMP) += mktemp.o +lib-$(CONFIG_PIPE_PROGRESS) += pipe_progress.o +lib-$(CONFIG_RUN_PARTS) += run_parts.o +lib-$(CONFIG_START_STOP_DAEMON) += start_stop_daemon.o +lib-$(CONFIG_WHICH) += which.o diff --git a/debianutils/mktemp.c b/debianutils/mktemp.c new file mode 100644 index 0000000..0dcb1e8 --- /dev/null +++ b/debianutils/mktemp.c @@ -0,0 +1,69 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini mktemp implementation for busybox + * + * + * Copyright (C) 2000 by Daniel Jacobowitz + * Written by Daniel Jacobowitz + * + * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. + */ + +/* Coreutils 6.12 man page says: + * mktemp [OPTION]... [TEMPLATE] + * Create a temporary file or directory, safely, and print its name. If + * TEMPLATE is not specified, use tmp.XXXXXXXXXX. + * -d, --directory + * create a directory, not a file + * -q, --quiet + * suppress diagnostics about file/dir-creation failure + * -u, --dry-run + * do not create anything; merely print a name (unsafe) + * --tmpdir[=DIR] + * interpret TEMPLATE relative to DIR. If DIR is not specified, + * use $TMPDIR if set, else /tmp. With this option, TEMPLATE must + * not be an absolute name. Unlike with -t, TEMPLATE may contain + * slashes, but even here, mktemp still creates only the final com- + * ponent. + * -p DIR use DIR as a prefix; implies -t [deprecated] + * -t interpret TEMPLATE as a single file name component, relative to + * a directory: $TMPDIR, if set; else the directory specified via + * -p; else /tmp [deprecated] + */ + + +#include "libbb.h" + +int mktemp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int mktemp_main(int argc UNUSED_PARAM, char **argv) +{ + const char *path; + char *chp; + unsigned opt; + + opt_complementary = "?1"; /* 1 argument max */ + opt = getopt32(argv, "dqtp:", &path); + chp = argv[optind] ? argv[optind] : xstrdup("tmp.XXXXXX"); + + if (opt & (4|8)) { /* -t and/or -p */ + const char *dir = getenv("TMPDIR"); + if (dir && *dir != '\0') + path = dir; + else if (!(opt & 8)) /* no -p */ + path = "/tmp/"; + /* else path comes from -p DIR */ + chp = concat_path_file(path, chp); + } + + if (opt & 1) { /* -d */ + if (mkdtemp(chp) == NULL) + return EXIT_FAILURE; + } else { + if (mkstemp(chp) < 0) + return EXIT_FAILURE; + } + + puts(chp); + + return EXIT_SUCCESS; +} diff --git a/debianutils/pipe_progress.c b/debianutils/pipe_progress.c new file mode 100644 index 0000000..fa98e8b --- /dev/null +++ b/debianutils/pipe_progress.c @@ -0,0 +1,39 @@ +/* vi: set sw=4 ts=4: */ +/* + * Monitor a pipe with a simple progress display. + * + * Copyright (C) 2003 by Rob Landley , Joey Hess + * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. + */ + +#include "libbb.h" + +#define PIPE_PROGRESS_SIZE 4096 + +/* Read a block of data from stdin, write it to stdout. + * Activity is indicated by a '.' to stderr + */ +int pipe_progress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int pipe_progress_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) +{ + RESERVE_CONFIG_BUFFER(buf, PIPE_PROGRESS_SIZE); + time_t t = time(NULL); + size_t len; + + while ((len = fread(buf, 1, PIPE_PROGRESS_SIZE, stdin)) > 0) { + time_t new_time = time(NULL); + if (new_time != t) { + t = new_time; + fputc('.', stderr); + } + fwrite(buf, len, 1, stdout); + } + + fputc('\n', stderr); + + if (ENABLE_FEATURE_CLEAN_UP) + RELEASE_CONFIG_BUFFER(buf); + + return 0; +} diff --git a/debianutils/run_parts.c b/debianutils/run_parts.c new file mode 100644 index 0000000..7c38fa1 --- /dev/null +++ b/debianutils/run_parts.c @@ -0,0 +1,173 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini run-parts implementation for busybox + * + * Copyright (C) 2007 Bernhard Reutner-Fischer + * + * Based on a older version that was in busybox which was 1k big.. + * Copyright (C) 2001 by Emanuele Aina + * + * Based on the Debian run-parts program, version 1.15 + * Copyright (C) 1996 Jeff Noxon , + * Copyright (C) 1996-1999 Guy Maor + * + * + * Licensed under GPL v2 or later, see file LICENSE in this tarball for details. + */ + +/* This is my first attempt to write a program in C (well, this is my first + * attempt to write a program! :-) . */ + +/* This piece of code is heavily based on the original version of run-parts, + * taken from debian-utils. I've only removed the long options and a the + * report mode. As the original run-parts support only long options, I've + * broken compatibility because the BusyBox policy doesn't allow them. + * The supported options are: + * -t test. Print the name of the files to be executed, without + * execute them. + * -a ARG argument. Pass ARG as an argument the program executed. It can + * be repeated to pass multiple arguments. + * -u MASK umask. Set the umask of the program executed to MASK. + */ + +#include "libbb.h" + +struct globals { + char **names; + int cur; + char *cmd[1]; +}; +#define G (*(struct globals*)&bb_common_bufsiz1) +#define names (G.names) +#define cur (G.cur ) +#define cmd (G.cmd ) + +enum { NUM_CMD = (COMMON_BUFSIZE - sizeof(G)) / sizeof(cmd[0]) - 1 }; + +enum { + OPT_r = (1 << 0), + OPT_a = (1 << 1), + OPT_u = (1 << 2), + OPT_t = (1 << 3), + OPT_l = (1 << 4) * ENABLE_FEATURE_RUN_PARTS_FANCY, +}; + +#if ENABLE_FEATURE_RUN_PARTS_FANCY +#define list_mode (option_mask32 & OPT_l) +#else +#define list_mode 0 +#endif + +/* Is this a valid filename (upper/lower alpha, digits, + * underscores, and hyphens only?) + */ +static bool invalid_name(const char *c) +{ + c = bb_basename(c); + + while (*c && (isalnum(*c) || *c == '_' || *c == '-')) + c++; + + return *c; /* TRUE (!0) if terminating NUL is not reached */ +} + +static int bb_alphasort(const void *p1, const void *p2) +{ + int r = strcmp(*(char **) p1, *(char **) p2); + return (option_mask32 & OPT_r) ? -r : r; +} + +static int FAST_FUNC act(const char *file, struct stat *statbuf, void *args UNUSED_PARAM, int depth) +{ + if (depth == 1) + return TRUE; + + if (depth == 2 + && ( !(statbuf->st_mode & (S_IFREG | S_IFLNK)) + || invalid_name(file) + || (!list_mode && access(file, X_OK) != 0)) + ) { + return SKIP; + } + + names = xrealloc_vector(names, 4, cur); + names[cur++] = xstrdup(file); + /*names[cur] = NULL; - xrealloc_vector did it */ + + return TRUE; +} + +#if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS +static const char runparts_longopts[] ALIGN1 = + "arg\0" Required_argument "a" + "umask\0" Required_argument "u" + "test\0" No_argument "t" +#if ENABLE_FEATURE_RUN_PARTS_FANCY + "list\0" No_argument "l" + "reverse\0" No_argument "r" +//TODO: "verbose\0" No_argument "v" +#endif + ; +#endif + +int run_parts_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int run_parts_main(int argc UNUSED_PARAM, char **argv) +{ + const char *umask_p = "22"; + llist_t *arg_list = NULL; + unsigned n; + int ret; + +#if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS + applet_long_options = runparts_longopts; +#endif + /* We require exactly one argument: the directory name */ + /* We require exactly one argument: the directory name */ + opt_complementary = "=1:a::"; + getopt32(argv, "ra:u:t"USE_FEATURE_RUN_PARTS_FANCY("l"), &arg_list, &umask_p); + + umask(xstrtou_range(umask_p, 8, 0, 07777)); + + n = 1; + while (arg_list && n < NUM_CMD) { + cmd[n++] = llist_pop(&arg_list); + } + /* cmd[n] = NULL; - is already zeroed out */ + + /* run-parts has to sort executables by name before running them */ + + recursive_action(argv[optind], + ACTION_RECURSE|ACTION_FOLLOWLINKS, + act, /* file action */ + act, /* dir action */ + NULL, /* user data */ + 1 /* depth */ + ); + + if (!names) + return 0; + + qsort(names, cur, sizeof(char *), bb_alphasort); + + n = 0; + while (1) { + char *name = *names++; + if (!name) + break; + if (option_mask32 & (OPT_t | OPT_l)) { + puts(name); + continue; + } + cmd[0] = name; + ret = wait4pid(spawn(cmd)); + if (ret == 0) + continue; + n = 1; + if (ret < 0) + bb_perror_msg("can't exec %s", name); + else /* ret > 0 */ + bb_error_msg("%s exited with code %d", name, ret); + } + + return n; +} diff --git a/debianutils/start_stop_daemon.c b/debianutils/start_stop_daemon.c new file mode 100644 index 0000000..ab607bd --- /dev/null +++ b/debianutils/start_stop_daemon.c @@ -0,0 +1,447 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini start-stop-daemon implementation(s) for busybox + * + * Written by Marek Michalkiewicz , + * Adapted for busybox David Kimdon + * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. + */ + +/* +This is how it is supposed to work: + +start-stop-daemon [OPTIONS] [--start|--stop] [[--] arguments...] + +One (only) of these must be given: + -S,--start Start + -K,--stop Stop + +Search for matching processes. +If --stop is given, stop all matching processes (by sending a signal). +If --start is given, start a new process unless a matching process was found. + +Options controlling process matching +(if multiple conditions are specified, all must match): + -u,--user USERNAME|UID Only consider this user's processes + -n,--name PROCESS_NAME Look for processes by matching PROCESS_NAME + with comm field in /proc/$PID/stat. + Only basename is compared: + "ntpd" == "./ntpd" == "/path/to/ntpd". +[TODO: can PROCESS_NAME be a full pathname? Should we require full match then +with /proc/$PID/exe or argv[0] (comm can't be matched, it never contains path)] + -x,--exec EXECUTABLE Look for processes that were started with this + command in /proc/$PID/cmdline. + Unlike -n, we match against the full path: + "ntpd" != "./ntpd" != "/path/to/ntpd" + -p,--pidfile PID_FILE Look for processes with PID from this file + +Options which are valid for --start only: + -x,--exec EXECUTABLE Program to run (1st arg of execvp). Mandatory. + -a,--startas NAME argv[0] (defaults to EXECUTABLE) + -b,--background Put process into background + -N,--nicelevel N Add N to process' nice level + -c,--chuid USER[:[GRP]] Change to specified user [and group] + -m,--make-pidfile Write PID to the pidfile + (both -m and -p must be given!) + +Options which are valid for --stop only: + -s,--signal SIG Signal to send (default:TERM) + -t,--test Exit with status 0 if process is found + (we don't actually start or stop daemons) + +Misc options: + -o,--oknodo Exit with status 0 if nothing is done + -q,--quiet Quiet + -v,--verbose Verbose +*/ + +#include + +/* Override ENABLE_FEATURE_PIDFILE */ +#define WANT_PIDFILE 1 +#include "libbb.h" + +struct pid_list { + struct pid_list *next; + pid_t pid; +}; + +enum { + CTX_STOP = (1 << 0), + CTX_START = (1 << 1), + OPT_BACKGROUND = (1 << 2), // -b + OPT_QUIET = (1 << 3), // -q + OPT_TEST = (1 << 4), // -t + OPT_MAKEPID = (1 << 5), // -m + OPT_a = (1 << 6), // -a + OPT_n = (1 << 7), // -n + OPT_s = (1 << 8), // -s + OPT_u = (1 << 9), // -u + OPT_c = (1 << 10), // -c + OPT_x = (1 << 11), // -x + OPT_p = (1 << 12), // -p + OPT_OKNODO = (1 << 13) * ENABLE_FEATURE_START_STOP_DAEMON_FANCY, // -o + OPT_VERBOSE = (1 << 14) * ENABLE_FEATURE_START_STOP_DAEMON_FANCY, // -v + OPT_NICELEVEL = (1 << 15) * ENABLE_FEATURE_START_STOP_DAEMON_FANCY, // -N +}; +#define QUIET (option_mask32 & OPT_QUIET) +#define TEST (option_mask32 & OPT_TEST) + +struct globals { + struct pid_list *found; + char *userspec; + char *cmdname; + char *execname; + char *pidfile; + int user_id; + smallint signal_nr; +}; +#define G (*(struct globals*)&bb_common_bufsiz1) +#define found (G.found ) +#define userspec (G.userspec ) +#define cmdname (G.cmdname ) +#define execname (G.execname ) +#define pidfile (G.pidfile ) +#define user_id (G.user_id ) +#define signal_nr (G.signal_nr ) +#define INIT_G() do { \ + user_id = -1; \ + signal_nr = 15; \ +} while (0) + +#ifdef OLDER_VERSION_OF_X +/* -x,--exec EXECUTABLE + * Look for processes with matching /proc/$PID/exe. + * Match is performed using device+inode. + */ +static int pid_is_exec(pid_t pid) +{ + struct stat st; + char buf[sizeof("/proc//exe") + sizeof(int)*3]; + + sprintf(buf, "/proc/%u/exe", (unsigned)pid); + if (stat(buf, &st) < 0) + return 0; + if (st.st_dev == execstat.st_dev + && st.st_ino == execstat.st_ino) + return 1; + return 0; +} +#endif + +static int pid_is_exec(pid_t pid) +{ + ssize_t bytes; + char buf[PATH_MAX]; + + sprintf(buf, "/proc/%u/cmdline", (unsigned)pid); + bytes = open_read_close(buf, buf, sizeof(buf) - 1); + if (bytes > 0) { + buf[bytes] = '\0'; + return strcmp(buf, execname) == 0; + } + return 0; +} + +static int pid_is_name(pid_t pid) +{ + /* /proc/PID/stat is "PID (comm_15_bytes_max) ..." */ + char buf[32]; /* should be enough */ + char *p, *pe; + + sprintf(buf, "/proc/%u/stat", (unsigned)pid); + if (open_read_close(buf, buf, sizeof(buf) - 1) < 0) + return 0; + buf[sizeof(buf) - 1] = '\0'; /* paranoia */ + p = strchr(buf, '('); + if (!p) + return 0; + pe = strrchr(++p, ')'); + if (!pe) + return 0; + *pe = '\0'; + /* we require comm to match and to not be truncated */ + /* in Linux, if comm is 15 chars, it may be a truncated + * name, so we don't allow that to match */ + if (strlen(p) >= COMM_LEN - 1) /* COMM_LEN is 16 */ + return 0; + return strcmp(p, cmdname) == 0; +} + +static int pid_is_user(int pid) +{ + struct stat sb; + char buf[sizeof("/proc/") + sizeof(int)*3]; + + sprintf(buf, "/proc/%u", (unsigned)pid); + if (stat(buf, &sb) != 0) + return 0; + return (sb.st_uid == (uid_t)user_id); +} + +static void check(int pid) +{ + struct pid_list *p; + + if (execname && !pid_is_exec(pid)) { + return; + } + if (cmdname && !pid_is_name(pid)) { + return; + } + if (userspec && !pid_is_user(pid)) { + return; + } + p = xmalloc(sizeof(*p)); + p->next = found; + p->pid = pid; + found = p; +} + +static void do_pidfile(void) +{ + FILE *f; + unsigned pid; + + f = fopen_for_read(pidfile); + if (f) { + if (fscanf(f, "%u", &pid) == 1) + check(pid); + fclose(f); + } else if (errno != ENOENT) + bb_perror_msg_and_die("open pidfile %s", pidfile); +} + +static void do_procinit(void) +{ + DIR *procdir; + struct dirent *entry; + int pid; + + if (pidfile) { + do_pidfile(); + return; + } + + procdir = xopendir("/proc"); + + pid = 0; + while (1) { + errno = 0; /* clear any previous error */ + entry = readdir(procdir); +// TODO: this check is too generic, it's better +// to check for exact errno(s) which mean that we got stale entry + if (errno) /* Stale entry, process has died after opendir */ + continue; + if (!entry) /* EOF, no more entries */ + break; + pid = bb_strtou(entry->d_name, NULL, 10); + if (errno) /* NaN */ + continue; + check(pid); + } + closedir(procdir); + if (!pid) + bb_error_msg_and_die("nothing in /proc - not mounted?"); +} + +static int do_stop(void) +{ + char *what; + struct pid_list *p; + int killed = 0; + + if (cmdname) { + if (ENABLE_FEATURE_CLEAN_UP) what = xstrdup(cmdname); + if (!ENABLE_FEATURE_CLEAN_UP) what = cmdname; + } else if (execname) { + if (ENABLE_FEATURE_CLEAN_UP) what = xstrdup(execname); + if (!ENABLE_FEATURE_CLEAN_UP) what = execname; + } else if (pidfile) { + what = xasprintf("process in pidfile '%s'", pidfile); + } else if (userspec) { + what = xasprintf("process(es) owned by '%s'", userspec); + } else { + bb_error_msg_and_die("internal error, please report"); + } + + if (!found) { + if (!QUIET) + printf("no %s found; none killed\n", what); + killed = -1; + goto ret; + } + for (p = found; p; p = p->next) { + if (TEST || kill(p->pid, signal_nr) == 0) { + killed++; + } else { + p->pid = 0; + bb_perror_msg("warning: killing process %u", (unsigned)p->pid); + } + } + if (!QUIET && killed) { + printf("stopped %s (pid", what); + for (p = found; p; p = p->next) + if (p->pid) + printf(" %u", (unsigned)p->pid); + puts(")"); + } + ret: + if (ENABLE_FEATURE_CLEAN_UP) + free(what); + return killed; +} + +#if ENABLE_FEATURE_START_STOP_DAEMON_LONG_OPTIONS +static const char start_stop_daemon_longopts[] ALIGN1 = + "stop\0" No_argument "K" + "start\0" No_argument "S" + "background\0" No_argument "b" + "quiet\0" No_argument "q" + "test\0" No_argument "t" + "make-pidfile\0" No_argument "m" +#if ENABLE_FEATURE_START_STOP_DAEMON_FANCY + "oknodo\0" No_argument "o" + "verbose\0" No_argument "v" + "nicelevel\0" Required_argument "N" +#endif + "startas\0" Required_argument "a" + "name\0" Required_argument "n" + "signal\0" Required_argument "s" + "user\0" Required_argument "u" + "chuid\0" Required_argument "c" + "exec\0" Required_argument "x" + "pidfile\0" Required_argument "p" +#if ENABLE_FEATURE_START_STOP_DAEMON_FANCY + "retry\0" Required_argument "R" +#endif + ; +#endif + +int start_stop_daemon_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int start_stop_daemon_main(int argc UNUSED_PARAM, char **argv) +{ + unsigned opt; + char *signame; + char *startas; + char *chuid; +#ifdef OLDER_VERSION_OF_X + struct stat execstat; +#endif +#if ENABLE_FEATURE_START_STOP_DAEMON_FANCY +// char *retry_arg = NULL; +// int retries = -1; + char *opt_N; +#endif + + INIT_G(); + +#if ENABLE_FEATURE_START_STOP_DAEMON_LONG_OPTIONS + applet_long_options = start_stop_daemon_longopts; +#endif + + /* -K or -S is required; they are mutually exclusive */ + /* -p is required if -m is given */ + /* -xpun (at least one) is required if -K is given */ + /* -xa (at least one) is required if -S is given */ + /* -q turns off -v */ + opt_complementary = "K:S:K--S:S--K:m?p:K?xpun:S?xa" + USE_FEATURE_START_STOP_DAEMON_FANCY("q-v"); + opt = getopt32(argv, "KSbqtma:n:s:u:c:x:p:" + USE_FEATURE_START_STOP_DAEMON_FANCY("ovN:R:"), + &startas, &cmdname, &signame, &userspec, &chuid, &execname, &pidfile + USE_FEATURE_START_STOP_DAEMON_FANCY(,&opt_N) + /* We accept and ignore -R / --retry */ + USE_FEATURE_START_STOP_DAEMON_FANCY(,NULL) + ); + + if (opt & OPT_s) { + signal_nr = get_signum(signame); + if (signal_nr < 0) bb_show_usage(); + } + + if (!(opt & OPT_a)) + startas = execname; + if (!execname) /* in case -a is given and -x is not */ + execname = startas; + +// USE_FEATURE_START_STOP_DAEMON_FANCY( +// if (retry_arg) +// retries = xatoi_u(retry_arg); +// ) + //argc -= optind; + argv += optind; + + if (userspec) { + user_id = bb_strtou(userspec, NULL, 10); + if (errno) + user_id = xuname2uid(userspec); + } + /* Both start and stop need to know current processes */ + do_procinit(); + + if (opt & CTX_STOP) { + int i = do_stop(); + return (opt & OPT_OKNODO) ? 0 : (i <= 0); + } + + if (found) { + if (!QUIET) + printf("%s is already running\n%u\n", execname, (unsigned)found->pid); + return !(opt & OPT_OKNODO); + } + +#ifdef OLDER_VERSION_OF_X + if (execname) + xstat(execname, &execstat); +#endif + + *--argv = startas; + if (opt & OPT_BACKGROUND) { +#if BB_MMU + bb_daemonize(DAEMON_DEVNULL_STDIO + DAEMON_CLOSE_EXTRA_FDS); + /* DAEMON_DEVNULL_STDIO is superfluous - + * it's always done by bb_daemonize() */ +#else + pid_t pid = vfork(); + if (pid < 0) /* error */ + bb_perror_msg_and_die("vfork"); + if (pid != 0) { + /* parent */ + /* why _exit? the child may have changed the stack, + * so "return 0" may do bad things */ + _exit(EXIT_SUCCESS); + } + /* Child */ + setsid(); /* detach from controlling tty */ + /* Redirect stdio to /dev/null, close extra FDs. + * We do not actually daemonize because of DAEMON_ONLY_SANITIZE */ + bb_daemonize_or_rexec(DAEMON_DEVNULL_STDIO + + DAEMON_CLOSE_EXTRA_FDS + + DAEMON_ONLY_SANITIZE, + NULL /* argv, unused */ ); +#endif + } + if (opt & OPT_MAKEPID) { + /* User wants _us_ to make the pidfile */ + write_pidfile(pidfile); + } + if (opt & OPT_c) { + struct bb_uidgid_t ugid = { -1, -1 }; + parse_chown_usergroup_or_die(&ugid, chuid); + if (ugid.gid != (gid_t) -1) xsetgid(ugid.gid); + if (ugid.uid != (uid_t) -1) xsetuid(ugid.uid); + } +#if ENABLE_FEATURE_START_STOP_DAEMON_FANCY + if (opt & OPT_NICELEVEL) { + /* Set process priority */ + int prio = getpriority(PRIO_PROCESS, 0) + xatoi_range(opt_N, INT_MIN/2, INT_MAX/2); + if (setpriority(PRIO_PROCESS, 0, prio) < 0) { + bb_perror_msg_and_die("setpriority(%d)", prio); + } + } +#endif + execvp(startas, argv); + bb_perror_msg_and_die("cannot start %s", startas); +} diff --git a/debianutils/which.c b/debianutils/which.c new file mode 100644 index 0000000..748e6dc --- /dev/null +++ b/debianutils/which.c @@ -0,0 +1,90 @@ +/* vi: set sw=4 ts=4: */ +/* + * Which implementation for busybox + * + * Copyright (C) 1999-2004 by Erik Andersen + * Copyright (C) 2006 Gabriel Somlo + * + * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. + * + * Based on which from debianutils + */ + +#include "libbb.h" + +int which_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int which_main(int argc UNUSED_PARAM, char **argv) +{ + USE_DESKTOP(int opt;) + int status = EXIT_SUCCESS; + char *path; + char *p; + + opt_complementary = "-1"; /* at least one argument */ + USE_DESKTOP(opt =) getopt32(argv, "a"); + argv += optind; + + /* This matches what is seen on e.g. ubuntu. + * "which" there is a shell script. */ + path = getenv("PATH"); + if (!path) { + path = (char*)bb_PATH_root_path; + putenv(path); + path += 5; /* skip "PATH=" */ + } + + do { +#if ENABLE_DESKTOP +/* Much bloat just to support -a */ + if (strchr(*argv, '/')) { + if (execable_file(*argv)) { + puts(*argv); + continue; + } + status = EXIT_FAILURE; + } else { + char *path2 = xstrdup(path); + char *tmp = path2; + + p = find_execable(*argv, &tmp); + if (!p) + status = EXIT_FAILURE; + else { + print: + puts(p); + free(p); + if (opt) { + /* -a: show matches in all PATH components */ + if (tmp) { + p = find_execable(*argv, &tmp); + if (p) + goto print; + } + } + } + free(path2); + } +#else +/* Just ignoring -a */ + if (strchr(*argv, '/')) { + if (execable_file(*argv)) { + puts(*argv); + continue; + } + } else { + char *path2 = xstrdup(path); + char *tmp = path2; + p = find_execable(*argv, &tmp); + free(path2); + if (p) { + puts(p); + free(p); + continue; + } + } + status = EXIT_FAILURE; +#endif + } while (*(++argv) != NULL); + + fflush_stdout_and_exit(status); +} -- cgit v1.2.3