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authorEric Andersen <andersen@codepoet.org>2001-10-24 05:00:29 +0000
committerEric Andersen <andersen@codepoet.org>2001-10-24 05:00:29 +0000
commitbdfd0d78bc44e73d693510e70087857785b3b521 (patch)
tree153a573095afac8d8d0ea857759ecabd77fb28b7 /start_stop_daemon.c
parent9260fc5552a3ee52eb95823aa6689d52a1ffd33c (diff)
downloadbusybox-bdfd0d78bc44e73d693510e70087857785b3b521.tar.gz
Major rework of the directory structure and the entire build system.
-Erik
Diffstat (limited to 'start_stop_daemon.c')
-rw-r--r--start_stop_daemon.c271
1 files changed, 0 insertions, 271 deletions
diff --git a/start_stop_daemon.c b/start_stop_daemon.c
deleted file mode 100644
index 0152283ad..000000000
--- a/start_stop_daemon.c
+++ /dev/null
@@ -1,271 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Mini start-stop-daemon implementation(s) for busybox
- *
- * Written by Marek Michalkiewicz <marekm@i17linuxb.ists.pwr.wroc.pl>,
- * public domain.
- * Adapted for busybox David Kimdon <dwhedon@gordian.com>
- */
-
-#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 <pwd.h>
-
-#include "busybox.h"
-
-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 *progname = "";
-
-struct pid_list {
- struct pid_list *next;
- int pid;
-};
-
-static struct pid_list *found = NULL;
-static struct pid_list *killed = NULL;
-
-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
-parse_options(int argc, char * const *argv)
-{
-
- int c;
-
- for (;;) {
- c = getopt (argc, argv, "a:n:s:u:x:KS");
- if (c == EOF)
- break;
- switch (c) {
- case 'K':
- stop = 1;
- break;
- case 'S':
- start = 1;
- break;
- case 'a':
- startas = optarg;
- break;
- case 'n':
- cmdname = optarg;
- break;
- case 's':
- if (sscanf(optarg, "%d", &signal_nr) != 1)
- error_msg_and_die ("-s takes a numeric argument");
- break;
- case 'u':
- userspec = optarg;
- break;
- case 'x':
- execname = optarg;
- break;
- default:
- show_usage();
- exit(1);
- }
- }
-
- if (start == stop)
- error_msg_and_die ("need one of -S or -K");
-
- if (!execname && !userspec)
- error_msg_and_die ("need at least one of -x or -u");
-
- if (!startas)
- startas = execname;
-
- if (start && !startas)
- error_msg_and_die ("-S needs -x or -a");
-}
-
-
-static int
-pid_is_exec(int pid, const char *exec)
-{
- char buf[PATH_MAX];
- FILE *fp;
-
- sprintf(buf, "/proc/%d/cmdline", pid);
- fp = fopen(buf, "r");
- if (fp && fgets (buf, sizeof (buf), fp) ) {
- if (strncmp (buf, exec, strlen(exec)) == 0)
- return 1;
- }
- return 0;
-}
-
-
-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, execname)) {
- return;
- }
- if (userspec && !pid_is_user(pid, user_id)) {
- return;
- }
- if (cmdname && !pid_is_cmd(pid, cmdname)) {
- return;
- }
- push(&found, pid);
-}
-
-
-
-static void
-do_procfs(void)
-{
- DIR *procdir;
- struct dirent *entry;
- int foundany, pid;
-
- procdir = opendir("/proc");
- if (!procdir)
- perror_msg_and_die ("opendir /proc");
-
- foundany = 0;
- while ((entry = readdir(procdir)) != NULL) {
- if (sscanf(entry->d_name, "%d", &pid) != 1)
- continue;
- foundany++;
- check(pid);
- }
- closedir(procdir);
- if (!foundany)
- error_msg_and_die ("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 (userspec)
- sprintf(what, "process(es) owned by `%s'", userspec);
- else
- error_msg_and_die ("internal error, please report");
-
- if (!found) {
- printf("no %s found; none killed.\n", what);
- exit(0);
- }
- for (p = found; p; p = p->next) {
- 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 (killed) {
- printf("stopped %s (pid", what);
- for (p = killed; p; p = p->next)
- printf(" %d", p->pid);
- printf(").\n");
- }
-}
-
-
-int
-start_stop_daemon_main(int argc, char **argv)
-{
- progname = argv[0];
-
- parse_options(argc, argv);
- argc -= optind;
- argv += optind;
-
- if (userspec && sscanf(userspec, "%d", &user_id) != 1) {
- struct passwd *pw;
-
- pw = getpwnam(userspec);
- if (!pw)
- error_msg_and_die ("user `%s' not found\n", userspec);
-
- user_id = pw->pw_uid;
- }
-
- do_procfs();
-
- if (stop) {
- do_stop();
- exit(0);
- }
-
- if (found) {
- printf("%s already running.\n", execname);
- printf("%d\n",found->pid);
- exit(0);
- }
- *--argv = startas;
- execv(startas, argv);
- perror_msg_and_die ("unable to start %s", startas);
-}
-