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[enum] populate the device list

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This commit is contained in:
Pete Batard 2011-11-17 01:43:06 +00:00
parent 7b84a6adff
commit e041eea1df
3 changed files with 241 additions and 15 deletions
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8
.msvc/usbdos_2010.vcxproj
View file

@ -78,7 +78,7 @@
<WarningLevel>Level3</WarningLevel>
</ClCompile>
<Link>
<AdditionalDependencies>comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>setupapi.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<UACExecutionLevel>HighestAvailable</UACExecutionLevel>
<GenerateDebugInformation>true</GenerateDebugInformation>
<SubSystem>Windows</SubSystem>
@ -98,7 +98,7 @@
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
</ClCompile>
<Link>
<AdditionalDependencies>comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>setupapi.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<UACExecutionLevel>HighestAvailable</UACExecutionLevel>
<GenerateDebugInformation>true</GenerateDebugInformation>
<SubSystem>Windows</SubSystem>
@ -113,7 +113,7 @@
<WarningLevel>Level3</WarningLevel>
</ClCompile>
<Link>
<AdditionalDependencies>comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>setupapi.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<UACExecutionLevel>HighestAvailable</UACExecutionLevel>
<GenerateDebugInformation>false</GenerateDebugInformation>
<SubSystem>Windows</SubSystem>
@ -131,7 +131,7 @@
<WarningLevel>Level3</WarningLevel>
</ClCompile>
<Link>
<AdditionalDependencies>comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>setupapi.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<UACExecutionLevel>HighestAvailable</UACExecutionLevel>
<GenerateDebugInformation>false</GenerateDebugInformation>
<SubSystem>Windows</SubSystem>

224
usbdos.c
View file

@ -22,6 +22,8 @@
#include <stdio.h>
#include <string.h>
#include <commctrl.h>
#include <setupapi.h>
#include <ntddscsi.h>
#include "msapi_utf8.h"
#include "resource.h"
@ -30,19 +32,234 @@
/*
* Globals
*/
HINSTANCE main_instance;
static HINSTANCE main_instance;
static HWND hDeviceList;
#ifdef USBDOS_DEBUG
static void _uprintf(const char *format, ...)
{
char buf[4096], *p = buf;
va_list args;
int n;
va_start(args, format);
n = safe_vsnprintf(p, sizeof(buf)-3, format, args); // buf-3 is room for CR/LF/NUL
va_end(args);
p += (n < 0)?sizeof(buf)-3:n;
while((p>buf) && (isspace(p[-1])))
*--p = '\0';
*p++ = '\r';
*p++ = '\n';
*p = '\0';
OutputDebugStringA(buf);
}
#define uprintf(...) _uprintf(__VA_ARGS__)
#else
#define uprintf(...)
#endif
/*
* Main dialog callback
* Converts a windows error to human readable string
* uses retval as errorcode, or, if 0, use GetLastError()
*/
static char *WindowsErrorString(DWORD retval)
{
static char err_string[256];
DWORD size;
DWORD error_code, format_error;
error_code = retval?retval:GetLastError();
safe_sprintf(err_string, sizeof(err_string), "[%d] ", error_code);
size = FormatMessageU(FORMAT_MESSAGE_FROM_SYSTEM, NULL, error_code,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), &err_string[strlen(err_string)],
sizeof(err_string)-(DWORD)strlen(err_string), NULL);
if (size == 0) {
format_error = GetLastError();
if (format_error)
safe_sprintf(err_string, sizeof(err_string),
"Windows error code %u (FormatMessage error code %u)", error_code, format_error);
else
safe_sprintf(err_string, sizeof(err_string), "Unknown error code %u", error_code);
}
return err_string;
}
/*
* Returns the drive letter (0 if error) and fills the drive label
*/
char GetDriveInfo(DWORD num, char** label)
{
BOOL r, ret = FALSE;
DWORD size;
HANDLE hDrive;
STORAGE_DEVICE_NUMBER sdn = {0};
static char volume_label[MAX_PATH];
static char drives[26*2];
char *drive = drives;
char drive_name[] = "\\\\.\\#:";
*label = "NO_LABEL";
size = GetLogicalDriveStringsA(sizeof(drives), drives);
if (size == 0) {
uprintf("GetLogicalDriveStrings failed: %s\n", WindowsErrorString(0));
return 0;
}
if (size > sizeof(drives)) {
uprintf("GetLogicalDriveStrings: buffer too small (required %d vs %d)\n", size, sizeof(drives));
return FALSE;
}
for ( ;*drive; drive += safe_strlen(drive)+1) {
if (*drive < 'C') {
continue;
}
safe_sprintf(drive_name, sizeof(drive_name), "\\\\.\\%c:", drive[0]);
hDrive = CreateFileA(drive_name, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0);
if (hDrive == INVALID_HANDLE_VALUE) {
uprintf("Could not open drive %c: %s\n", WindowsErrorString(0));
continue;
}
r = DeviceIoControl(hDrive, IOCTL_STORAGE_GET_DEVICE_NUMBER, NULL,
0, &sdn, sizeof(sdn), &size, NULL);
if ((!r) || (size <= 0)) {
uprintf("IOCTL_STORAGE_GET_DEVICE_NUMBER failed: %s\n", WindowsErrorString(0));
CloseHandle(hDrive);
return 0;
}
if (sdn.DeviceNumber == num)
break;
CloseHandle(hDrive);
}
if (*drive && GetVolumeInformationA(drive, volume_label, sizeof(volume_label), NULL, NULL, NULL, NULL, 0)) {
*label = volume_label;
}
return *drive;
}
/*
* Refreshes the list of USB devices
*/
static BOOL GetUSBDevices(void)
{
BOOL r;
HDEVINFO dev_info = NULL;
SP_DEVINFO_DATA dev_info_data;
SP_DEVICE_INTERFACE_DATA devint_data;
PSP_DEVICE_INTERFACE_DETAIL_DATA_A devint_detail_data;
STORAGE_DEVICE_NUMBER storage_device;
DWORD size, i, j, datatype;
HANDLE hDrive;
char drive_letter;
char *label, entry[MAX_PATH], buffer[MAX_PATH];
IGNORE_RETVAL(ComboBox_ResetContent(hDeviceList));
dev_info = SetupDiGetClassDevsA(&GUID_DEVINTERFACE_DISK, NULL, NULL, DIGCF_PRESENT|DIGCF_DEVICEINTERFACE);
if (dev_info == INVALID_HANDLE_VALUE) {
uprintf("SetupDiGetClassDevs (Interface) failed: %d\n", WindowsErrorString(0));
return FALSE;
}
dev_info_data.cbSize = sizeof(dev_info_data);
for (i=0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
memset(buffer, 0, sizeof(buffer));
if (!SetupDiGetDeviceRegistryPropertyA(dev_info, &dev_info_data, SPDRP_ENUMERATOR_NAME,
&datatype, (LPBYTE)buffer, sizeof(buffer), &size)) {
uprintf("SetupDiGetDeviceRegistryProperty (Enumerator Name) failed: %d\n", WindowsErrorString(0));
continue;
}
if (safe_strcmp(buffer, "USBSTOR") != 0)
continue;
memset(buffer, 0, sizeof(buffer));
if (!SetupDiGetDeviceRegistryPropertyA(dev_info, &dev_info_data, SPDRP_FRIENDLYNAME,
&datatype, (LPBYTE)buffer, sizeof(buffer), &size)) {
uprintf("SetupDiGetDeviceRegistryProperty (Friendly Name) failed: %d\n", WindowsErrorString(0));
continue;
}
uprintf("found drive '%s'\n", buffer);
devint_data.cbSize = sizeof(devint_data);
devint_detail_data = NULL;
for (j=0;;j++) {
if (!SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data, &GUID_DEVINTERFACE_DISK, j, &devint_data)) {
if(GetLastError() != ERROR_NO_MORE_ITEMS) {
uprintf("SetupDiEnumDeviceInterfaces failed: %s\n", WindowsErrorString(0));
}
break;
}
if (!SetupDiGetDeviceInterfaceDetailA(dev_info, &devint_data, NULL, 0, &size, NULL)) {
if(GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
devint_detail_data = (PSP_DEVICE_INTERFACE_DETAIL_DATA_A)calloc(1, size);
if (devint_detail_data == NULL) {
uprintf("unable to allocate data for SP_DEVICE_INTERFACE_DETAIL_DATA\n");
return FALSE;
}
devint_detail_data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_A);
} else {
uprintf("SetupDiGetDeviceInterfaceDetail (dummy) failed: %s\n", WindowsErrorString(0));
continue;
}
}
if(!SetupDiGetDeviceInterfaceDetailA(dev_info, &devint_data, devint_detail_data, size, &size, NULL)) {
uprintf("SetupDiGetDeviceInterfaceDetail (actual) failed: %s\n", WindowsErrorString(0));
continue;
}
hDrive = CreateFileA(devint_detail_data->DevicePath, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if(hDrive == INVALID_HANDLE_VALUE) {
uprintf("could not open '%s': %s\n", devint_detail_data->DevicePath, WindowsErrorString(0));
continue;
}
safe_free(devint_detail_data);
memset(&storage_device, 0, sizeof(storage_device));
r = DeviceIoControl(hDrive, IOCTL_STORAGE_GET_DEVICE_NUMBER,
NULL, 0, &storage_device, sizeof(storage_device), &size, NULL );
if (!r || size <= 0) {
uprintf("IOCTL_STORAGE_GET_DEVICE_NUMBER failed: %s\n", WindowsErrorString(0));
CloseHandle(hDrive);
continue;
}
CloseHandle(hDrive);
drive_letter = GetDriveInfo(storage_device.DeviceNumber, &label);
if (drive_letter) {
safe_sprintf(entry, sizeof(entry), "%s (%c:)\n", label, drive_letter);
IGNORE_RETVAL(ComboBox_AddStringU(hDeviceList, entry));
}
}
}
IGNORE_RETVAL(ComboBox_SetCurSel(hDeviceList, 0));
return TRUE;
}
/*
* Main dialog callback
*/
static INT_PTR CALLBACK main_callback(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message) {
case WM_DEVICECHANGE:
GetUSBDevices();
return (INT_PTR)TRUE;
case WM_INITDIALOG:
hDeviceList = GetDlgItem(hDlg, IDC_DEVICE);
GetUSBDevices();
return (INT_PTR)TRUE;
case WM_COMMAND:
@ -111,6 +328,8 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
HWND hDlg = NULL;
MSG msg;
uprintf("*** USBDOS INIT ***\n");
// Prevent 2 applications from running at the same time
mutex = CreateMutexA(NULL, TRUE, "Global/USBDOS");
if ((mutex == NULL) || (GetLastError() == ERROR_ALREADY_EXISTS))
@ -144,6 +363,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
out:
CloseHandle(mutex);
uprintf("*** USBDOS EXIT ***\n");
return 0;
}

24
usbdos.h
View file

@ -18,17 +18,10 @@
#pragma once
#if !defined(bool)
#define bool BOOL
#endif
#if !defined(true)
#define true TRUE
#endif
#if !defined(false)
#define false FALSE
#endif
#define USBDOS_DEBUG
#define APP_VERSION "USBDOS v0.1.0.1"
#define IGNORE_RETVAL(expr) do { (void)(expr); } while(0)
#define safe_free(p) do {free((void*)p); p = NULL;} while(0)
#define safe_min(a, b) min((size_t)(a), (size_t)(b))
@ -44,3 +37,16 @@
#define safe_sprintf _snprintf
#define safe_strlen(str) ((((char*)str)==NULL)?0:strlen(str))
#define safe_strdup _strdup
#if defined(_MSC_VER)
#define safe_vsnprintf(buf, size, format, arg) _vsnprintf_s(buf, size, _TRUNCATE, format, arg)
#else
#define safe_vsnprintf vsnprintf
#endif
typedef struct _SCSI_PASS_THROUGH_WITH_BUFFERS {
SCSI_PASS_THROUGH Spt;
ULONG Filler;
UCHAR SenseBuf[32];
UCHAR DataBuf[512];
} SCSI_PASS_THROUGH_WITH_BUFFERS, *PSCSI_PASS_THROUGH_WITH_BUFFERS;