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Check one and only one of start, stop are given.

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Remove some global variables.
#define some getopt values.
This commit is contained in:
Glenn L McGrath 2004-01-22 09:04:58 +00:00
parent 85c5152cb8
commit 8d44178381
1 changed files with 17 additions and 17 deletions
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34
debianutils/start_stop_daemon.c
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@ -21,15 +21,11 @@
#include "busybox.h" #include "busybox.h"
#include "pwd_.h" #include "pwd_.h"
static int start = 0;
static int stop = 0;
static int fork_before_exec = 0;
static int signal_nr = 15; static int signal_nr = 15;
static int user_id = -1; static int user_id = -1;
static char *userspec = NULL; static char *userspec = NULL;
static char *cmdname = NULL; static char *cmdname = NULL;
static char *execname = NULL; static char *execname = NULL;
static char *startas = NULL;
typedef struct pid_list { typedef struct pid_list {
struct pid_list *next; struct pid_list *next;
@ -195,35 +191,40 @@ static const struct option ssd_long_options[] = {
{ 0, 0, 0, 0 } { 0, 0, 0, 0 }
}; };
#define SSD_CTX_STOP 1
#define SSD_CTX_START 2
#define SSD_OPT_BACKGROUND 4
int int
start_stop_daemon_main(int argc, char **argv) start_stop_daemon_main(int argc, char **argv)
{ {
int flags; unsigned long opt;
char *signame = NULL; char *signame = NULL;
char *startas = NULL;
bb_applet_long_options = ssd_long_options; bb_applet_long_options = ssd_long_options;
flags = bb_getopt_ulflags(argc, argv, "KSba:n:s:u:x:", bb_opt_complementaly = "K~S";
opt = bb_getopt_ulflags(argc, argv, "KSba:n:s:u:x:",
&startas, &cmdname, &signame, &userspec, &execname); &startas, &cmdname, &signame, &userspec, &execname);
/* Be sneaky and avoid branching */ /* Check one and only one context option was given */
stop = (flags & 1); if ((opt & 0x80000000UL) ||
start = (flags & 2); (opt & (SSD_CTX_STOP | SSD_CTX_START)) == 0) {
fork_before_exec = (flags & 4); bb_show_usage();
}
if (signame) { if (signame) {
signal_nr = bb_xgetlarg(signame, 10, 0, NSIG); signal_nr = bb_xgetlarg(signame, 10, 0, NSIG);
} }
if (start == stop)
bb_error_msg_and_die ("need exactly one of -S or -K");
if (!execname && !userspec) if (!execname && !userspec)
bb_error_msg_and_die ("need at least one of -x or -u"); bb_error_msg_and_die ("need at least one of -x or -u");
if (!startas) if (!startas)
startas = execname; startas = execname;
if (start && !startas) if ((opt & SSD_CTX_START) && !startas)
bb_error_msg_and_die ("-S needs -x or -a"); bb_error_msg_and_die ("-S needs -x or -a");
argc -= optind; argc -= optind;
@ -234,7 +235,7 @@ start_stop_daemon_main(int argc, char **argv)
do_procfs(); do_procfs();
if (stop) { if (opt & SSD_CTX_STOP) {
do_stop(); do_stop();
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }
@ -244,7 +245,7 @@ start_stop_daemon_main(int argc, char **argv)
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }
*--argv = startas; *--argv = startas;
if (fork_before_exec) { if (opt & SSD_OPT_BACKGROUND) {
if (daemon(0, 0) == -1) if (daemon(0, 0) == -1)
bb_perror_msg_and_die ("unable to fork"); bb_perror_msg_and_die ("unable to fork");
} }
@ -252,4 +253,3 @@ start_stop_daemon_main(int argc, char **argv)
execv(startas, argv); execv(startas, argv);
bb_perror_msg_and_die ("unable to start %s", startas); bb_perror_msg_and_die ("unable to start %s", startas);
} }