wine/programs/net/net.c
Rob Shearman e4c8d763c9 net: Display a more specific error message when a service command fails.
Use FormatMessage to get the message for the Win32 error.
2008-04-02 11:23:01 +02:00

231 lines
6.5 KiB
C

/*
* Copyright 2007 Tim Schwartz
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <lm.h>
#include "resources.h"
#define NET_START 0001
#define NET_STOP 0002
int output_string(int msg, ...)
{
char msg_buffer[8192];
va_list arguments;
LoadString(GetModuleHandle(NULL), msg, msg_buffer, sizeof(msg_buffer));
va_start(arguments, msg);
vprintf(msg_buffer, arguments);
va_end(arguments);
return 0;
}
BOOL output_error_string(DWORD error)
{
LPSTR pBuffer;
if (FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_ALLOCATE_BUFFER,
NULL, error, 0, (LPSTR)&pBuffer, 0, NULL))
{
fputs(pBuffer, stdout);
LocalFree(pBuffer);
return TRUE;
}
return FALSE;
}
static BOOL net_use(int argc, char *argv[])
{
USE_INFO_2 *buffer, *connection;
DWORD read, total, resume_handle, rc, i;
const char *status_description[] = { "OK", "Paused", "Disconnected", "An error occurred",
"A network error occurred", "Connection is being made",
"Reconnecting" };
resume_handle = 0;
buffer = NULL;
if(argc<3)
{
do {
rc = NetUseEnum(NULL, 2, (BYTE **) &buffer, 2048, &read, &total, &resume_handle);
if (rc != ERROR_MORE_DATA && rc != ERROR_SUCCESS)
{
break;
}
if(total == 0)
{
output_string(STRING_NO_ENTRIES);
break;
}
output_string(STRING_USE_HEADER);
for (i = 0, connection = buffer; i < read; ++i, ++connection)
output_string(STRING_USE_ENTRY, status_description[connection->ui2_status], connection->ui2_local,
connection->ui2_remote, connection->ui2_refcount);
if (buffer != NULL) NetApiBufferFree(buffer);
} while (rc == ERROR_MORE_DATA);
return TRUE;
}
return FALSE;
}
static BOOL StopService(SC_HANDLE SCManager, SC_HANDLE serviceHandle)
{
LPENUM_SERVICE_STATUS dependencies = NULL;
DWORD buffer_size = 0;
DWORD count = 0, counter;
BOOL result;
SC_HANDLE dependent_serviceHandle;
SERVICE_STATUS_PROCESS ssp;
result = EnumDependentServices(serviceHandle, SERVICE_ACTIVE, dependencies, buffer_size, &buffer_size, &count);
if(!result && (GetLastError() == ERROR_MORE_DATA))
{
dependencies = HeapAlloc(GetProcessHeap(), 0, buffer_size);
if(EnumDependentServices(serviceHandle, SERVICE_ACTIVE, dependencies, buffer_size, &buffer_size, &count))
{
for(counter = 0; counter < count; counter++)
{
output_string(STRING_STOP_DEP, dependencies[counter].lpDisplayName);
dependent_serviceHandle = OpenService(SCManager, dependencies[counter].lpServiceName, SC_MANAGER_ALL_ACCESS);
if(dependent_serviceHandle) result = StopService(SCManager, dependent_serviceHandle);
CloseServiceHandle(dependent_serviceHandle);
if(!result) output_string(STRING_CANT_STOP, dependencies[counter].lpDisplayName);
}
}
}
if(result) result = ControlService(serviceHandle, SERVICE_CONTROL_STOP, (LPSERVICE_STATUS)&ssp);
HeapFree(GetProcessHeap(), 0, dependencies);
return result;
}
static BOOL net_service(int operation, char *service_name)
{
SC_HANDLE SCManager, serviceHandle;
BOOL result = 0;
char service_display_name[4096];
DWORD buffer_size = sizeof(service_display_name);
SCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
if(!SCManager)
{
output_string(STRING_NO_SCM);
return FALSE;
}
serviceHandle = OpenService(SCManager, service_name, SC_MANAGER_ALL_ACCESS);
if(!serviceHandle)
{
output_string(STRING_NO_SVCHANDLE);
CloseServiceHandle(SCManager);
return FALSE;
}
GetServiceDisplayName(SCManager, service_name, service_display_name, &buffer_size);
if (!service_display_name[0]) strcpy(service_display_name, service_name);
switch(operation)
{
case NET_START:
output_string(STRING_START_SVC, service_display_name);
result = StartService(serviceHandle, 0, NULL);
if(result) output_string(STRING_START_SVC_SUCCESS, service_display_name);
else
{
if (!output_error_string(GetLastError()))
output_string(STRING_START_SVC_FAIL, service_display_name);
}
break;
case NET_STOP:
output_string(STRING_STOP_SVC, service_display_name);
result = StopService(SCManager, serviceHandle);
if(result) output_string(STRING_STOP_SVC_SUCCESS, service_display_name);
else
{
if (!output_error_string(GetLastError()))
output_string(STRING_STOP_SVC_FAIL, service_display_name);
}
break;
}
CloseServiceHandle(serviceHandle);
CloseServiceHandle(SCManager);
return result;
}
int main(int argc, char *argv[])
{
if (argc < 2)
{
output_string(STRING_USAGE);
return 1;
}
if(!strcasecmp(argv[1], "help"))
{
output_string(STRING_HELP_USAGE);
}
if(!strcasecmp(argv[1], "start"))
{
if(argc < 3)
{
output_string(STRING_START_USAGE);
return 1;
}
if(!net_service(NET_START, argv[2]))
{
return 1;
}
return 0;
}
if(!strcasecmp(argv[1], "stop"))
{
if(argc < 3)
{
output_string(STRING_STOP_USAGE);
return 1;
}
if(!net_service(NET_STOP, argv[2]))
{
return 1;
}
return 0;
}
if(!strcasecmp(argv[1], "use"))
{
if(!net_use(argc, argv)) return 1;
}
return 0;
}