/* Busyboxed by Denys Vlasenko <vda.linux@googlemail.com> */
//config:config SV
-//config: bool "sv (7.8 kb)"
+//config: bool "sv (8.5 kb)"
//config: default y
//config: help
//config: sv reports the current status and controls the state of services
//config:config SV_DEFAULT_SERVICE_DIR
//config: string "Default directory for services"
//config: default "/var/service"
-//config: depends on SV
+//config: depends on SV || SVC || SVOK
//config: help
//config: Default directory for services.
//config: Defaults to "/var/service"
//config:
//config:config SVC
-//config: bool "svc (7.8 kb)"
+//config: bool "svc (8.4 kb)"
//config: default y
//config: help
//config: svc controls the state of services monitored by the runsv supervisor.
-//config: It is comaptible with daemontools command with the same name.
+//config: It is compatible with daemontools command with the same name.
+//config:
+//config:config SVOK
+//config: bool "svok (1.5 kb)"
+//config: default y
+//config: help
+//config: svok checks whether runsv supervisor is running.
+//config: It is compatible with daemontools command with the same name.
-//applet:IF_SV( APPLET_NOEXEC(sv, sv, BB_DIR_USR_BIN, BB_SUID_DROP, sv ))
-//applet:IF_SVC(APPLET_NOEXEC(svc, svc, BB_DIR_USR_BIN, BB_SUID_DROP, svc))
+//applet:IF_SV( APPLET_NOEXEC(sv, sv, BB_DIR_USR_BIN, BB_SUID_DROP, sv ))
+//applet:IF_SVC( APPLET_NOEXEC(svc, svc, BB_DIR_USR_BIN, BB_SUID_DROP, svc ))
+//applet:IF_SVOK(APPLET_NOEXEC(svok, svok, BB_DIR_USR_BIN, BB_SUID_DROP, svok))
//kbuild:lib-$(CONFIG_SV) += sv.o
//kbuild:lib-$(CONFIG_SVC) += sv.o
+//kbuild:lib-$(CONFIG_SVOK) += sv.o
#include <sys/file.h>
#include "libbb.h"
#define str_equal(s,t) (strcmp((s), (t)) == 0)
+#if ENABLE_SV || ENABLE_SVC
static void fatal_cannot(const char *m1) NORETURN;
static void fatal_cannot(const char *m1)
{
service = argv;
while ((x = *service) != NULL) {
if (x[0] != '/' && x[0] != '.'
- && x[0] != '\0' && x[strlen(x) - 1] != '/'
+ && !last_char_is(x, '/')
) {
if (chdir(varservice) == -1)
goto chdir_failed_0;
}
return rc > 99 ? 99 : rc;
}
+#endif
#if ENABLE_SV
int sv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
return 0;
}
#endif
+
+//usage:#define svok_trivial_usage
+//usage: "SERVICE_DIR"
+//usage:#define svok_full_usage "\n\n"
+//usage: "Check whether runsv supervisor is running.\n"
+//usage: "Exit code is 0 if it does, 100 if it does not,\n"
+//usage: "111 (with error message) if SERVICE_DIR does not exist."
+#if ENABLE_SVOK
+int svok_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int svok_main(int argc UNUSED_PARAM, char **argv)
+{
+ const char *dir = argv[1];
+
+ if (!dir)
+ bb_show_usage();
+
+ xfunc_error_retval = 111;
+
+ /*
+ * daemontools has no concept of "default service dir", runit does.
+ * Let's act as runit.
+ */
+ if (dir[0] != '/' && dir[0] != '.'
+ && !last_char_is(dir, '/')
+ ) {
+ xchdir(CONFIG_SV_DEFAULT_SERVICE_DIR);
+ }
+
+ xchdir(dir);
+ if (open("supervise/ok", O_WRONLY) < 0) {
+ if (errno == ENOENT || errno == ENXIO)
+ return 100;
+ bb_perror_msg_and_die("can't open '%s'", "supervise/ok");
+ }
+
+ return 0;
+}
+#endif