qga: save state directory in ga_install_service()

If the user selects a non-default state directory at service installation
time, we should remember it in the registered service.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

qga/main.c

@@ -1022,7 +1022,16 @@ int main(int argc, char **argv)
         case 's':
             service = optarg;
             if (strcmp(service, "install") == 0) {
-                return ga_install_service(path, log_filepath);
+                const char *fixed_state_dir;
+
+                /* If the user passed the "-t" option, we save that state dir
+                 * in the service. Otherwise we let the service fetch the state
+                 * dir from the environment when it starts.
+                 */
+                fixed_state_dir = (state_dir == dfl_pathnames.state_dir) ?
+                                  NULL :
+                                  state_dir;
+                return ga_install_service(path, log_filepath, fixed_state_dir);
             } else if (strcmp(service, "uninstall") == 0) {
                 return ga_uninstall_service();
             } else {

qga/service-win32.c

@@ -35,7 +35,8 @@ static int printf_win_error(const char *text)
     return n;
 }
 
-int ga_install_service(const char *path, const char *logfile)
+int ga_install_service(const char *path, const char *logfile,
+                       const char *state_dir)
 {
     SC_HANDLE manager;
     SC_HANDLE service;
@@ -56,6 +57,9 @@ int ga_install_service(const char *path, const char *logfile)
     if (logfile) {
         g_string_append_printf(cmdline, " -l %s -v", logfile);
     }
+    if (state_dir) {
+        g_string_append_printf(cmdline, " -t %s", state_dir);
+    }
 
     g_debug("service's cmdline: %s", cmdline->str);
 

qga/service-win32.h

@@ -24,7 +24,8 @@ typedef struct GAService {
     SERVICE_STATUS_HANDLE status_handle;
 } GAService;
 
-int ga_install_service(const char *path, const char *logfile);
+int ga_install_service(const char *path, const char *logfile,
+                       const char *state_dir);
 int ga_uninstall_service(void);
 
 #endif