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[sysvinit-devel] [PATCH 2/6] contrib: Remove very obsolete start-stop-da
From: |
Guillem Jover |
Subject: |
[sysvinit-devel] [PATCH 2/6] contrib: Remove very obsolete start-stop-daemon embedded copy |
Date: |
Fri, 4 May 2018 23:31:41 +0200 |
The canonical and current version in dpkg, is already in C, it is far
more advanced containing many additional features and bug fixes, and
is way more portable.
Signed-off-by: Guillem Jover <address@hidden>
---
COPYRIGHT | 9 -
contrib/start-stop-daemon.README | 45 ----
contrib/start-stop-daemon.c | 429 -------------------------------
3 files changed, 483 deletions(-)
delete mode 100644 contrib/start-stop-daemon.README
delete mode 100644 contrib/start-stop-daemon.c
diff --git a/COPYRIGHT b/COPYRIGHT
index a208043..403259b 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -19,12 +19,3 @@ On Debian GNU/Linux systems, the complete text of the GNU
General
Public License can be found in `/usr/share/common-licenses/GPL-2'.
Send patches to address@hidden
-
-Regarding the start-stop-daemon located in the contrib directory:
-
- * A rewrite of the original Debian's start-stop-daemon Perl script
- * in C (faster - it is executed many times during system startup).
- *
- * Written by Marek Michalkiewicz <address@hidden>,
- * public domain.
-
diff --git a/contrib/start-stop-daemon.README b/contrib/start-stop-daemon.README
deleted file mode 100644
index 6ce7710..0000000
--- a/contrib/start-stop-daemon.README
+++ /dev/null
@@ -1,45 +0,0 @@
-Start-stop-daemon is the program that is used by the Debian style init
-scripts to start and stop services. This program is part of the "dpkg"
-package by Ian Jackson. However there is also a seperate C version (the
-original is in Perl) available written by Marek Michalkiewicz. I am including
-it for your convinience.
-
-Note that the latest Debian dpkg packages (4.0.18 and later) contain
-a much improved update-rc.d. This code is almost a year old.
-
-The original announcement follows:
-
-
-From: Marek Michalkiewicz <address@hidden>
-Message-Id: <address@hidden>
-Subject: Fast start-stop-daemon in C
-To: address@hidden
-Date: Thu, 6 Jun 1996 05:24:18 +0200 (MET DST)
-
-Some time ago I wrote a faster C replacement for the start-stop-daemon
-perl script. I use it for some time now (the most recent changes were
-just a nicer help screen; the code is quite stable).
-
-This makes the system boot faster (especially on low end machines),
-and important system startup scripts no longer depend on another big
-package (perl). Maybe in the future we can get to the point where
-a minimal system will work without perl installed at all (packages
-which need it in {pre,post}{inst,rm} scripts would depend on perl).
-
-The only problem known so far to me is that I have to reinstall this
-program after every dpkg upgrade which overwrites it with that nice
-slooow perl script :-).
-
-Just compile this program and drop the binary in /usr/sbin instead
-of the original /usr/sbin/start-stop-daemon perl script (make a copy
-of it first, just in case). See below for source code. I placed it
-in the public domain, but if it has to be GPL-ed to be included in
-dpkg, just tell me. Including it in dpkg would close Bug#1670.
-
-I am posting it here so that it can be tested by more people than
-just me. Bugs are unlikely though.
-
-Have fun,
-
-Marek
-
diff --git a/contrib/start-stop-daemon.c b/contrib/start-stop-daemon.c
deleted file mode 100644
index 838154b..0000000
--- a/contrib/start-stop-daemon.c
+++ /dev/null
@@ -1,429 +0,0 @@
-/*
- * A rewrite of the original Debian's start-stop-daemon Perl script
- * in C (faster - it is executed many times during system startup).
- *
- * Written by Marek Michalkiewicz <address@hidden>,
- * public domain.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdarg.h>
-#include <signal.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <pwd.h>
-
-#define VERSION "version 0.3, 1996-06-05"
-
-static int testmode = 0;
-static int quietmode = 0;
-static int exitnodo = 1;
-static int start = 0;
-static int stop = 0;
-static int signal_nr = 15;
-static int user_id = -1;
-static const char *userspec = NULL;
-static const char *cmdname = NULL;
-static char *execname = NULL;
-static char *startas = NULL;
-static const char *pidfile = NULL;
-static const char *progname = "";
-
-static struct stat exec_stat;
-
-struct pid_list {
- struct pid_list *next;
- int pid;
-};
-
-static struct pid_list *found = NULL;
-static struct pid_list *killed = NULL;
-
-static void *xmalloc(int size);
-static void push(struct pid_list **list, int pid);
-static void do_help(void);
-static void parse_options(int argc, char * const *argv);
-static int pid_is_exec(int pid, const struct stat *esb);
-static int pid_is_user(int pid, int uid);
-static int pid_is_cmd(int pid, const char *name);
-static void check(int pid);
-static void do_pidfile(const char *name);
-static void do_procfs(void);
-static void do_stop(void);
-
-#ifdef __GNUC__
-static void fatal(const char *format, ...)
- __attribute__((noreturn, format(printf, 1, 2)));
-static void badusage(const char *msg)
- __attribute__((noreturn));
-#else
-static void fatal(const char *format, ...);
-static void badusage(const char *msg);
-#endif
-
-static void
-fatal(const char *format, ...)
-{
- va_list arglist;
-
- fprintf(stderr, "%s: ", progname);
- va_start(arglist, format);
- vfprintf(stderr, format, arglist);
- va_end(arglist);
- putc('\n', stderr);
- exit(2);
-}
-
-
-static void *
-xmalloc(int size)
-{
- void *ptr;
-
- ptr = malloc(size);
- if (ptr)
- return ptr;
- fatal("malloc(%d) failed", size);
-}
-
-
-static void
-push(struct pid_list **list, int pid)
-{
- struct pid_list *p;
-
- p = xmalloc(sizeof(*p));
- p->next = *list;
- p->pid = pid;
- *list = p;
-}
-
-
-static void
-do_help(void)
-{
-printf("start-stop-daemon for Debian Linux - small and fast C version written
by\n"
-"Marek Michalkiewicz <address@hidden>, public domain. %s\n"
-"\n"
-"Usage:\n"
-" start-stop-daemon -S|--start options ... -- arguments ...\n"
-" start-stop-daemon -K|--stop options ...\n"
-" start-stop-daemon -H|--help\n"
-" start-stop-daemon -V|--version\n"
-"\n"
-"Options (at least one of --exec|--pidfile|--user is required):\n"
-" -x|--exec <executable> program to start/check if it is running\n"
-" -p|--pidfile <pid-file> pid file to check\n"
-" -u|--user <username>|<uid> stop this user's processes\n"
-" -n|--name <process-name> stop processes with this name\n"
-" -s|--signal <signal> signal to send (default 15)\n"
-" -a|--startas <pathname> program to start (default <executable>)\n"
-" -t|--test test mode, don't do anything\n"
-" -o|--oknodo exit status 0 (not 1) if nothing done\n"
-" -q|--quiet | -v, --verbose\n"
-"\n"
-"Exit status: 0 = done 1 = nothing done (=> 0 if --oknodo) 2 = trouble\n",
-VERSION);
-}
-
-
-static void
-badusage(const char *msg)
-{
- if (msg && *msg)
- fprintf(stderr, "%s: %s\n", progname, msg);
- fprintf(stderr, "Try `%s --help' for more information.\n", progname);
- exit(2);
-}
-
-
-static void
-parse_options(int argc, char * const *argv)
-{
- static struct option longopts[] = {
- { "help", 0, NULL, 'H'},
- { "stop", 0, NULL, 'K'},
- { "start", 0, NULL, 'S'},
- { "version", 0, NULL, 'V'},
- { "startas", 1, NULL, 'a'},
- { "name", 1, NULL, 'n'},
- { "oknodo", 0, NULL, 'o'},
- { "pidfile", 1, NULL, 'p'},
- { "quiet", 0, NULL, 'q'},
- { "signal", 1, NULL, 's'},
- { "test", 0, NULL, 't'},
- { "user", 1, NULL, 'u'},
- { "verbose", 0, NULL, 'v'},
- { "exec", 1, NULL, 'x'},
- { NULL, 0, NULL, 0}
- };
- int c;
-
- for (;;) {
- c = getopt_long(argc, argv, "HKSVa:n:op:qs:tu:vx:",
- longopts, (int *) 0);
- if (c == -1)
- break;
- switch (c) {
- case 'H': /* --help */
- do_help();
- exit(0);
- case 'K': /* --stop */
- stop = 1;
- break;
- case 'S': /* --start */
- start = 1;
- break;
- case 'V': /* --version */
- printf("start-stop-daemon " VERSION "\n");
- exit(0);
- case 'a': /* --startas <pathname> */
- startas = optarg;
- break;
- case 'n': /* --name <process-name> */
- cmdname = optarg;
- break;
- case 'o': /* --oknodo */
- exitnodo = 0;
- break;
- case 'p': /* --pidfile <pid-file> */
- pidfile = optarg;
- break;
- case 'q': /* --quiet */
- quietmode = 1;
- break;
- case 's': /* --signal <signal> */
- if (sscanf(optarg, "%d", &signal_nr) != 1)
- badusage("--signal takes a numeric argument");
- break;
- case 't': /* --test */
- testmode = 1;
- break;
- case 'u': /* --user <username>|<uid> */
- userspec = optarg;
- break;
- case 'v': /* --verbose */
- quietmode = -1;
- break;
- case 'x': /* --exec <executable> */
- execname = optarg;
- break;
- default:
- badusage(""); /* message printed by getopt */
- }
- }
-
- if (start == stop)
- badusage("need one of --start or --stop");
-
- if (!execname && !pidfile && !userspec)
- badusage("need at least one of --exec, --pidfile or --user");
-
- if (!startas)
- startas = execname;
-
- if (start && !startas)
- badusage("--start needs --exec or --startas");
-}
-
-
-static int
-pid_is_exec(int pid, const struct stat *esb)
-{
- struct stat sb;
- char buf[32];
-
- sprintf(buf, "/proc/%d/exe", pid);
- if (stat(buf, &sb) != 0)
- return 0;
- return (sb.st_dev == esb->st_dev && sb.st_ino == esb->st_ino);
-}
-
-
-static int
-pid_is_user(int pid, int uid)
-{
- struct stat sb;
- char buf[32];
-
- sprintf(buf, "/proc/%d", pid);
- if (stat(buf, &sb) != 0)
- return 0;
- return (sb.st_uid == uid);
-}
-
-
-static int
-pid_is_cmd(int pid, const char *name)
-{
- char buf[32];
- FILE *f;
- int c;
-
- sprintf(buf, "/proc/%d/stat", pid);
- f = fopen(buf, "r");
- if (!f)
- return 0;
- while ((c = getc(f)) != EOF && c != '(')
- ;
- if (c != '(') {
- fclose(f);
- return 0;
- }
- /* this hopefully handles command names containing ')' */
- while ((c = getc(f)) != EOF && c == *name)
- name++;
- fclose(f);
- return (c == ')' && *name == '\0');
-}
-
-
-static void
-check(int pid)
-{
- if (execname && !pid_is_exec(pid, &exec_stat))
- return;
- if (userspec && !pid_is_user(pid, user_id))
- return;
- if (cmdname && !pid_is_cmd(pid, cmdname))
- return;
- push(&found, pid);
-}
-
-
-static void
-do_pidfile(const char *name)
-{
- FILE *f;
- int pid;
-
- f = fopen(name, "r");
- if (f) {
- if (fscanf(f, "%d", &pid) == 1)
- check(pid);
- fclose(f);
- }
-}
-
-
-static void
-do_procfs(void)
-{
- DIR *procdir;
- struct dirent *entry;
- int foundany, pid;
-
- procdir = opendir("/proc");
- if (!procdir)
- fatal("opendir /proc: %s", strerror(errno));
-
- foundany = 0;
- while ((entry = readdir(procdir)) != NULL) {
- if (sscanf(entry->d_name, "%d", &pid) != 1)
- continue;
- foundany++;
- check(pid);
- }
- closedir(procdir);
- if (!foundany)
- fatal("nothing in /proc - not mounted?");
-}
-
-
-static void
-do_stop(void)
-{
- char what[1024];
- struct pid_list *p;
-
- if (cmdname)
- strcpy(what, cmdname);
- else if (execname)
- strcpy(what, execname);
- else if (pidfile)
- sprintf(what, "process in pidfile `%s'", pidfile);
- else if (userspec)
- sprintf(what, "process(es) owned by `%s'", userspec);
- else
- fatal("internal error, please report");
-
- if (!found) {
- if (quietmode <= 0)
- printf("no %s found; none killed.\n", what);
- exit(exitnodo);
- }
- for (p = found; p; p = p->next) {
- if (testmode)
- printf("would send signal %d to %d.\n",
- signal_nr, p->pid);
- else if (kill(p->pid, signal_nr) == 0)
- push(&killed, p->pid);
- else
- printf("%s: warning: failed to kill %d: %s\n",
- progname, p->pid, strerror(errno));
- }
- if (quietmode < 0 && killed) {
- printf("stopped %s (pid", what);
- for (p = killed; p; p = p->next)
- printf(" %d", p->pid);
- printf(").\n");
- }
-}
-
-
-int
-main(int argc, char **argv)
-{
- progname = argv[0];
-
- parse_options(argc, argv);
- argc -= optind;
- argv += optind;
-
- if (execname && stat(execname, &exec_stat))
- fatal("stat %s: %s", execname, strerror(errno));
-
- if (userspec && sscanf(userspec, "%d", &user_id) != 1) {
- struct passwd *pw;
-
- pw = getpwnam(userspec);
- if (!pw)
- fatal("user `%s' not found\n", userspec);
-
- user_id = pw->pw_uid;
- }
-
- if (pidfile)
- do_pidfile(pidfile);
- else
- do_procfs();
-
- if (stop) {
- do_stop();
- exit(0);
- }
-
- if (found) {
- if (quietmode <= 0)
- printf("%s already running.\n", execname);
- exit(exitnodo);
- }
- if (testmode) {
- printf("would start %s ", startas);
- while (argc-- > 0)
- printf("%s ", *argv++);
- printf(".\n");
- exit(0);
- }
- if (quietmode < 0)
- printf("starting %s ...\n", startas);
- *--argv = startas;
- execv(startas, argv);
- fatal("unable to start %s: %s", startas, strerror(errno));
-}
-
--
2.17.0.441.gb46fe60e1d
- [sysvinit-devel] [PATCH 0/6] Cleanups, Guillem Jover, 2018/05/04
- [sysvinit-devel] [PATCH 3/6] doc: Remove obsolete LSM file, Guillem Jover, 2018/05/04
- [sysvinit-devel] [PATCH 5/6] build: Refactor latest tarball name into a new variable, Guillem Jover, 2018/05/04
- [sysvinit-devel] [PATCH 2/6] contrib: Remove very obsolete start-stop-daemon embedded copy,
Guillem Jover <=
- [sysvinit-devel] [PATCH 1/6] Add new .gitignore files, Guillem Jover, 2018/05/04
- [sysvinit-devel] [PATCH 4/6] build: Fix dist targets, Guillem Jover, 2018/05/04