update-utmp: use _cleanup_ attribute to finalize process
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d850ad9a30
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3664cbabdd
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@ -30,6 +30,17 @@ typedef struct Context {
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#endif
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#endif
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} Context;
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} Context;
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static void context_clear(Context *c) {
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assert(c);
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c->bus = sd_bus_flush_close_unref(c->bus);
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#if HAVE_AUDIT
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if (c->audit_fd >= 0)
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audit_close(c->audit_fd);
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c->audit_fd = -1;
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#endif
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}
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static usec_t get_startup_time(Context *c) {
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static usec_t get_startup_time(Context *c) {
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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usec_t t = 0;
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usec_t t = 0;
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@ -205,7 +216,7 @@ static int on_runlevel(Context *c) {
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}
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}
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int main(int argc, char *argv[]) {
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int main(int argc, char *argv[]) {
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Context c = {
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_cleanup_(context_clear) Context c = {
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#if HAVE_AUDIT
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#if HAVE_AUDIT
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.audit_fd = -1
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.audit_fd = -1
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#endif
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#endif
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@ -236,8 +247,7 @@ int main(int argc, char *argv[]) {
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r = bus_connect_system_systemd(&c.bus);
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r = bus_connect_system_systemd(&c.bus);
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if (r < 0) {
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if (r < 0) {
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log_error_errno(r, "Failed to get D-Bus connection: %m");
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log_error_errno(r, "Failed to get D-Bus connection: %m");
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r = -EIO;
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return EXIT_FAILURE;
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goto finish;
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}
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}
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log_debug("systemd-update-utmp running as pid "PID_FMT, getpid_cached());
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log_debug("systemd-update-utmp running as pid "PID_FMT, getpid_cached());
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@ -250,17 +260,10 @@ int main(int argc, char *argv[]) {
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r = on_runlevel(&c);
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r = on_runlevel(&c);
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else {
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else {
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log_error("Unknown command %s", argv[1]);
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log_error("Unknown command %s", argv[1]);
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r = -EINVAL;
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return EXIT_FAILURE;
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}
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}
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log_debug("systemd-update-utmp stopped as pid "PID_FMT, getpid_cached());
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log_debug("systemd-update-utmp stopped as pid "PID_FMT, getpid_cached());
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finish:
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#if HAVE_AUDIT
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if (c.audit_fd >= 0)
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audit_close(c.audit_fd);
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#endif
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sd_bus_flush_close_unref(c.bus);
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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}
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