3 extern unsigned long tls_index;
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5 /* String function */
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6 int str_equiv(const char *a, const char *b) {
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9 if (tolower(b[i]) != tolower(a[i])) return 0;
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10 if (! a[i]) return 1;
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14 /* How to use me correctly */
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15 int usage(int ret) {
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16 fprintf(stderr, "NSSM: The non-sucking service manager\n");
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17 fprintf(stderr, "Version %s, %s\n", NSSM_VERSION, NSSM_DATE);
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18 fprintf(stderr, "Usage: nssm <option> [args]\n\n");
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19 fprintf(stderr, "To show service installation GUI:\n\n");
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20 fprintf(stderr, " nssm install [<servicename>]\n\n");
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21 fprintf(stderr, "To install a service without confirmation:\n\n");
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22 fprintf(stderr, " nssm install <servicename> <app> [<args>]\n\n");
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23 fprintf(stderr, "To show service removal GUI:\n\n");
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24 fprintf(stderr, " nssm remove [<servicename>]\n\n");
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25 fprintf(stderr, "To remove a service without confirmation:\n\n");
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26 fprintf(stderr, " nssm remove <servicename> confirm\n");
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30 int check_admin(char *action) {
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31 /* Lifted from MSDN examples */
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32 PSID AdministratorsGroup;
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33 SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;
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34 BOOL ok = AllocateAndInitializeSid(&NtAuthority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &AdministratorsGroup);
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36 if (! CheckTokenMembership(0, AdministratorsGroup, &ok)) ok = 0;
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37 FreeSid(AdministratorsGroup);
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41 fprintf(stderr, "Administator access is needed to %s a service.\n", action);
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45 /* Can't tell if we are admin or not; later operations may fail */
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49 int main(int argc, char **argv) {
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50 /* Require an argument since users may try to run nssm directly */
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51 if (argc == 1) exit(usage(1));
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54 if (str_equiv(argv[1], "install") || str_equiv(argv[1], "remove")) {
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55 if (check_admin(argv[1])) exit(100);
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58 /* Valid commands are install or remove */
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59 if (str_equiv(argv[1], "install")) {
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60 exit(pre_install_service(argc - 2, argv + 2));
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62 if (str_equiv(argv[1], "remove")) {
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63 exit(pre_remove_service(argc - 2, argv + 2));
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65 /* Undocumented: "run" is used to actually do service stuff */
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66 if (! str_equiv(argv[1], NSSM_RUN)) exit(usage(2));
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68 /* Thread local storage for error message buffer */
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69 tls_index = TlsAlloc();
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71 /* Register messages */
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74 /* Start service magic */
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75 SERVICE_TABLE_ENTRY table[] = { { NSSM, service_main }, { 0, 0 } };
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76 if (! StartServiceCtrlDispatcher(table)) {
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77 log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DISPATCHER_FAILED, error_string(GetLastError()), 0);
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81 /* And nothing more to do */
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