- fprintf(stderr, "Usage: nssm option [args]\n");\r
- fprintf(stderr, "To install a service: nssm install [servicename]\n");\r
- fprintf(stderr, "To remove a service: nssm remove [servicename]\n");\r
- exit(ret);\r
+ fprintf(stderr, "Usage: nssm <option> [args]\n\n");\r
+ fprintf(stderr, "To show service installation GUI:\n\n");\r
+ fprintf(stderr, " nssm install [<servicename>]\n\n");\r
+ fprintf(stderr, "To install a service without confirmation:\n\n");\r
+ fprintf(stderr, " nssm install <servicename> <app> [<args>]\n\n");\r
+ fprintf(stderr, "To show service removal GUI:\n\n");\r
+ fprintf(stderr, " nssm remove [<servicename>]\n\n");\r
+ fprintf(stderr, "To remove a service without confirmation:\n\n");\r
+ fprintf(stderr, " nssm remove <servicename> confirm\n");\r
+ return(ret);\r
+}\r
+\r
+int check_admin(char *action) {\r
+ /* Lifted from MSDN examples */\r
+ PSID AdministratorsGroup;\r
+ SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;\r
+ BOOL ok = AllocateAndInitializeSid(&NtAuthority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &AdministratorsGroup);\r
+ if (ok) {\r
+ if (! CheckTokenMembership(0, AdministratorsGroup, &ok)) ok = 0;\r
+ FreeSid(AdministratorsGroup);\r
+\r
+ if (ok) return 0;\r
+\r
+ fprintf(stderr, "Administator access is needed to %s a service.\n", action);\r
+ return 1;\r
+ }\r
+\r
+ /* Can't tell if we are admin or not; later operations may fail */\r
+ return 0;\r