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authorLaszlo Ersek <lersek@redhat.com>2013-07-03 15:14:09 +0200
committerMichael Roth <mdroth@linux.vnet.ibm.com>2013-07-25 14:49:04 -0500
commit108365fdb0042454413d2610ffe7194003ba4ae9 (patch)
treef77c23bf135727e0593ac7519f9f6d45df770e98 /qga
parentfebf1c49be1bd80d7c95653fc0caa87d250b2c72 (diff)
ga_install_service(): nest error paths more idiomatically
Acked-by: Michael Roth <mdroth@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'qga')
-rw-r--r--qga/service-win32.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/qga/service-win32.c b/qga/service-win32.c
index 6de8be46be..1cf81fc96d 100644
--- a/qga/service-win32.c
+++ b/qga/service-win32.c
@@ -38,10 +38,12 @@ static int printf_win_error(const char *text)
int ga_install_service(const char *path, const char *logfile,
const char *state_dir)
{
+ int ret = EXIT_FAILURE;
SC_HANDLE manager;
SC_HANDLE service;
TCHAR module_fname[MAX_PATH];
GString *cmdline;
+ SERVICE_DESCRIPTION desc = { (char *)QGA_SERVICE_DESCRIPTION };
if (GetModuleFileName(NULL, module_fname, MAX_PATH) == 0) {
printf_win_error("No full path to service's executable");
@@ -66,28 +68,28 @@ int ga_install_service(const char *path, const char *logfile,
manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
if (manager == NULL) {
printf_win_error("No handle to service control manager");
- g_string_free(cmdline, TRUE);
- return EXIT_FAILURE;
+ goto out_strings;
}
service = CreateService(manager, QGA_SERVICE_NAME, QGA_SERVICE_DISPLAY_NAME,
SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START,
SERVICE_ERROR_NORMAL, cmdline->str, NULL, NULL, NULL, NULL, NULL);
-
- if (service) {
- SERVICE_DESCRIPTION desc = { (char *)QGA_SERVICE_DESCRIPTION };
- ChangeServiceConfig2(service, SERVICE_CONFIG_DESCRIPTION, &desc);
-
- fprintf(stderr, "Service was installed successfully.\n");
- } else {
+ if (service == NULL) {
printf_win_error("Failed to install service");
+ goto out_manager;
}
+ ChangeServiceConfig2(service, SERVICE_CONFIG_DESCRIPTION, &desc);
+ fprintf(stderr, "Service was installed successfully.\n");
+ ret = EXIT_SUCCESS;
CloseServiceHandle(service);
+
+out_manager:
CloseServiceHandle(manager);
+out_strings:
g_string_free(cmdline, TRUE);
- return (service == NULL);
+ return ret;
}
int ga_uninstall_service(void)