X-Git-Url: http://git.iain.cx/?a=blobdiff_plain;f=nssm.cpp;h=1f9e0ed1376cfb0cd22b0917a183de6e92c3d8d6;hb=62f28c55d444d846579159133dbe091809a2c08b;hp=225d03811e737988eca89d5f18b8237e8063ddc0;hpb=d007ff22cecf2ce85cc68a1de81a010d4a65badc;p=nssm.git

diff --git a/nssm.cpp b/nssm.cpp
index 225d038..1f9e0ed 100644
--- a/nssm.cpp
+++ b/nssm.cpp
@@ -1,43 +1,312 @@
 #include "nssm.h"
 
-/* String function */
-int str_equiv(const char *a, const char *b) {
-  int i;
+extern unsigned long tls_index;
+extern bool is_admin;
+extern imports_t imports;
+
+static TCHAR unquoted_imagepath[PATH_LENGTH];
+static TCHAR imagepath[PATH_LENGTH];
+static TCHAR imageargv0[PATH_LENGTH];
+
+void nssm_exit(int status) {
+  free_imports();
+  unsetup_utf8();
+  exit(status);
+}
+
+/* Are two strings case-insensitively equivalent? */
+int str_equiv(const TCHAR *a, const TCHAR *b) {
+  size_t len = _tcslen(a);
+  if (_tcslen(b) != len) return 0;
+  if (_tcsnicmp(a, b, len)) return 0;
+  return 1;
+}
+
+/* Convert a string to a number. */
+int str_number(const TCHAR *string, unsigned long *number, TCHAR **bogus) {
+  if (! string) return 1;
+
+  *number = _tcstoul(string, bogus, 0);
+  if (**bogus) return 2;
+
+  return 0;
+}
+
+int str_number(const TCHAR *string, unsigned long *number) {
+  TCHAR *bogus;
+  return str_number(string, number, &bogus);
+}
+
+/* Does a char need to be escaped? */
+static bool needs_escape(const TCHAR c) {
+  if (c == _T('"')) return true;
+  if (c == _T('&')) return true;
+  if (c == _T('%')) return true;
+  if (c == _T('^')) return true;
+  if (c == _T('<')) return true;
+  if (c == _T('>')) return true;
+  if (c == _T('|')) return true;
+  return false;
+}
+
+/* Does a char need to be quoted? */
+static bool needs_quote(const TCHAR c) {
+  if (c == _T(' ')) return true;
+  if (c == _T('\t')) return true;
+  if (c == _T('\n')) return true;
+  if (c == _T('\v')) return true;
+  if (c == _T('"')) return true;
+  if (c == _T('*')) return true;
+  return needs_escape(c);
+}
+
+/* https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way/ */
+/* http://www.robvanderwoude.com/escapechars.php */
+int quote(const TCHAR *unquoted, TCHAR *buffer, size_t buflen) {
+  size_t i, j, n;
+  size_t len = _tcslen(unquoted);
+  if (len > buflen - 1) return 1;
+
+  bool escape = false;
+  bool quotes = false;
+
+  for (i = 0; i < len; i++) {
+    if (needs_escape(unquoted[i])) {
+      escape = quotes = true;
+      break;
+    }
+    if (needs_quote(unquoted[i])) quotes = true;
+  }
+  if (! quotes) {
+    memmove(buffer, unquoted, (len + 1) * sizeof(TCHAR));
+    return 0;
+  }
+
+  /* "" */
+  size_t quoted_len = 2;
+  if (escape) quoted_len += 2;
+  for (i = 0; ; i++) {
+    n = 0;
+
+    while (i != len && unquoted[i] == _T('\\')) {
+      i++;
+      n++;
+    }
+
+    if (i == len) {
+      quoted_len += n * 2;
+      break;
+    }
+    else if (unquoted[i] == _T('"')) quoted_len += n * 2 + 2;
+    else quoted_len += n + 1;
+    if (needs_escape(unquoted[i])) quoted_len += n;
+  }
+  if (quoted_len > buflen - 1) return 1;
+
+  TCHAR *s = buffer;
+  if (escape) *s++ = _T('^');
+  *s++ = _T('"');
+
   for (i = 0; ; i++) {
-    if (tolower(b[i]) != tolower(a[i])) return 0;
-    if (! a[i]) return 1;
+    n = 0;
+
+    while (i != len && unquoted[i] == _T('\\')) {
+      i++;
+      n++;
+    }
+
+    if (i == len) {
+      for (j = 0; j < n * 2; j++) {
+        if (escape) *s++ = _T('^');
+        *s++ = _T('\\');
+      }
+      break;
+    }
+    else if (unquoted[i] == _T('"')) {
+      for (j = 0; j < n * 2 + 1; j++) {
+        if (escape) *s++ = _T('^');
+        *s++ = _T('\\');
+      }
+      if (escape && needs_escape(unquoted[i])) *s++ = _T('^');
+      *s++ = unquoted[i];
+    }
+    else {
+      for (j = 0; j < n; j++) {
+        if (escape) *s++ = _T('^');
+        *s++ = _T('\\');
+      }
+      if (escape && needs_escape(unquoted[i])) *s++ = _T('^');
+      *s++ = unquoted[i];
+    }
   }
+  if (escape) *s++ = _T('^');
+  *s++ = _T('"');
+  *s++ = _T('\0');
+
+  return 0;
+}
+
+/* Remove basename of a path. */
+void strip_basename(TCHAR *buffer) {
+  size_t len = _tcslen(buffer);
+  size_t i;
+  for (i = len; i && buffer[i] != _T('\\') && buffer[i] != _T('/'); i--);
+  /* X:\ is OK. */
+  if (i && buffer[i - 1] == _T(':')) i++;
+  buffer[i] = _T('\0');
 }
 
 /* How to use me correctly */
 int usage(int ret) {
-  fprintf(stderr, "NSSM: The non-sucking service manager\n");
-  fprintf(stderr, "Version %s, %s\n", NSSM_VERSION, NSSM_DATE);
-  fprintf(stderr, "Usage: nssm option [args]\n");
-  fprintf(stderr, "To install a service: nssm install [servicename]\n");
-  fprintf(stderr, "To remove a service: nssm remove [servicename]\n");
-  exit(ret);
-}
-
-int main(int argc, char **argv) {
-  /* Require an argument since users may try to run nssm directly */
-  if (argc == 1) exit(usage(1));
-
-  /* Valid commands are install or remove */
-  if (str_equiv(argv[1], "install")) exit(install_service(argv[2]));
-  if (str_equiv(argv[1], "remove")) exit(remove_service(argv[2]));
-  /* Undocumented: "run" is used to actually do service stuff */
-  if (! str_equiv(argv[1], NSSM_RUN)) exit(usage(2));
-
-  /* Start service magic */
-  SERVICE_TABLE_ENTRY table[] = { { NSSM, service_main }, { 0, 0 } };
-  if (! StartServiceCtrlDispatcher(table)) {
-    char *message = error_string(GetLastError());
-    eventprintf(EVENTLOG_ERROR_TYPE, "StartServiceCtrlDispatcher() failed: %s", message);
-    if (message) LocalFree(message);
-    return 100;
+  if (GetConsoleWindow()) print_message(stderr, NSSM_MESSAGE_USAGE, NSSM_VERSION, NSSM_CONFIGURATION, NSSM_DATE);
+  else popup_message(0, MB_OK, NSSM_MESSAGE_USAGE, NSSM_VERSION, NSSM_CONFIGURATION, NSSM_DATE);
+  return(ret);
+}
+
+void check_admin() {
+  is_admin = false;
+
+  /* Lifted from MSDN examples */
+  PSID AdministratorsGroup;
+  SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;
+  if (! AllocateAndInitializeSid(&NtAuthority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &AdministratorsGroup)) return;
+  CheckTokenMembership(0, AdministratorsGroup, /*XXX*/(PBOOL) &is_admin);
+  FreeSid(AdministratorsGroup);
+}
+
+static int elevate(int argc, TCHAR **argv, unsigned long message) {
+  print_message(stderr, message);
+
+  SHELLEXECUTEINFO sei;
+  ZeroMemory(&sei, sizeof(sei));
+  sei.cbSize = sizeof(sei);
+  sei.lpVerb = _T("runas");
+  sei.lpFile = (TCHAR *) nssm_imagepath();
+
+  TCHAR *args = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, EXE_LENGTH * sizeof(TCHAR));
+  if (! args) {
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("GetCommandLine()"), _T("elevate()"));
+    return 111;
+  }
+
+  /* Get command line, which includes the path to NSSM, and skip that part. */
+  _sntprintf_s(args, EXE_LENGTH, _TRUNCATE, _T("%s"), GetCommandLine());
+  size_t s = _tcslen(argv[0]) + 1;
+  if (args[0] == _T('"')) s += 2;
+  while (isspace(args[s])) s++;
+
+  sei.lpParameters = args + s;
+  sei.nShow = SW_SHOW;
+
+  unsigned long exitcode = 0;
+  if (! ShellExecuteEx(&sei)) exitcode = 100;
+
+  HeapFree(GetProcessHeap(), 0, (void *) args);
+  return exitcode;
+}
+
+int num_cpus() {
+  DWORD_PTR i, affinity, system_affinity;
+  if (! GetProcessAffinityMask(GetCurrentProcess(), &affinity, &system_affinity)) return 64;
+  for (i = 0; system_affinity & (1LL << i); i++);
+  return (int) i;
+}
+
+const TCHAR *nssm_unquoted_imagepath() {
+  return unquoted_imagepath;
+}
+
+const TCHAR *nssm_imagepath() {
+  return imagepath;
+}
+
+const TCHAR *nssm_exe() {
+  return imageargv0;
+}
+
+int _tmain(int argc, TCHAR **argv) {
+  if (check_console()) setup_utf8();
+
+  /* Remember if we are admin */
+  check_admin();
+
+  /* Set up function pointers. */
+  if (get_imports()) nssm_exit(111);
+
+  /* Remember our path for later. */
+  _sntprintf_s(imageargv0, _countof(imageargv0), _TRUNCATE, _T("%s"), argv[0]);
+  PathQuoteSpaces(imageargv0);
+  GetModuleFileName(0, unquoted_imagepath, _countof(unquoted_imagepath));
+  GetModuleFileName(0, imagepath, _countof(imagepath));
+  PathQuoteSpaces(imagepath);
+
+  /* Elevate */
+  if (argc > 1) {
+    /*
+      Valid commands are:
+      start, stop, pause, continue, install, edit, get, set, reset, unset, remove
+    */
+    if (str_equiv(argv[1], _T("start"))) nssm_exit(control_service(NSSM_SERVICE_CONTROL_START, argc - 2, argv + 2));
+    if (str_equiv(argv[1], _T("stop"))) nssm_exit(control_service(SERVICE_CONTROL_STOP, argc - 2, argv + 2));
+    if (str_equiv(argv[1], _T("restart"))) {
+      int ret = control_service(SERVICE_CONTROL_STOP, argc - 2, argv + 2);
+      if (ret) nssm_exit(ret);
+      nssm_exit(control_service(NSSM_SERVICE_CONTROL_START, argc - 2, argv + 2));
+    }
+    if (str_equiv(argv[1], _T("pause"))) nssm_exit(control_service(SERVICE_CONTROL_PAUSE, argc - 2, argv + 2));
+    if (str_equiv(argv[1], _T("continue"))) nssm_exit(control_service(SERVICE_CONTROL_CONTINUE, argc - 2, argv + 2));
+    if (str_equiv(argv[1], _T("status"))) nssm_exit(control_service(SERVICE_CONTROL_INTERROGATE, argc - 2, argv + 2));
+    if (str_equiv(argv[1], _T("statuscode"))) nssm_exit(control_service(SERVICE_CONTROL_INTERROGATE, argc - 2, argv + 2, true));
+    if (str_equiv(argv[1], _T("rotate"))) nssm_exit(control_service(NSSM_SERVICE_CONTROL_ROTATE, argc - 2, argv + 2));
+    if (str_equiv(argv[1], _T("install"))) {
+      if (! is_admin) nssm_exit(elevate(argc, argv, NSSM_MESSAGE_NOT_ADMINISTRATOR_CANNOT_INSTALL));
+      create_messages();
+      nssm_exit(pre_install_service(argc - 2, argv + 2));
+    }
+    if (str_equiv(argv[1], _T("edit")) || str_equiv(argv[1], _T("get")) || str_equiv(argv[1], _T("set")) || str_equiv(argv[1], _T("reset")) || str_equiv(argv[1], _T("unset")) || str_equiv(argv[1], _T("dump"))) {
+      int ret = pre_edit_service(argc - 1, argv + 1);
+      if (ret == 3 && ! is_admin && argc == 3) nssm_exit(elevate(argc, argv, NSSM_MESSAGE_NOT_ADMINISTRATOR_CANNOT_EDIT));
+      /* There might be a password here. */
+      for (int i = 0; i < argc; i++) SecureZeroMemory(argv[i], _tcslen(argv[i]) * sizeof(TCHAR));
+      nssm_exit(ret);
+    }
+    if (str_equiv(argv[1], _T("list"))) nssm_exit(list_nssm_services(argc - 2, argv + 2));
+    if (str_equiv(argv[1], _T("processes"))) nssm_exit(service_process_tree(argc - 2, argv + 2));
+    if (str_equiv(argv[1], _T("remove"))) {
+      if (! is_admin) nssm_exit(elevate(argc, argv, NSSM_MESSAGE_NOT_ADMINISTRATOR_CANNOT_REMOVE));
+      nssm_exit(pre_remove_service(argc - 2, argv + 2));
+    }
+  }
+
+  /* Thread local storage for error message buffer */
+  tls_index = TlsAlloc();
+
+  /* Register messages */
+  if (is_admin) create_messages();
+
+  /*
+    Optimisation for Windows 2000:
+    When we're run from the command line the StartServiceCtrlDispatcher() call
+    will time out after a few seconds on Windows 2000.  On newer versions the
+    call returns instantly.  Check for stdin first and only try to call the
+    function if there's no input stream found.  Although it's possible that
+    we're running with input redirected it's much more likely that we're
+    actually running as a service.
+    This will save time when running with no arguments from a command prompt.
+  */
+  if (! GetStdHandle(STD_INPUT_HANDLE)) {
+    /* Start service magic */
+    SERVICE_TABLE_ENTRY table[] = { { NSSM, service_main }, { 0, 0 } };
+    if (! StartServiceCtrlDispatcher(table)) {
+      unsigned long error = GetLastError();
+      /* User probably ran nssm with no argument */
+      if (error == ERROR_FAILED_SERVICE_CONTROLLER_CONNECT) nssm_exit(usage(1));
+      log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DISPATCHER_FAILED, error_string(error), 0);
+      nssm_exit(100);
+    }
   }
+  else nssm_exit(usage(1));
 
   /* And nothing more to do */
-  return 0;
+  nssm_exit(0);
 }