142 lines
4.5 KiB
C
Executable File
142 lines
4.5 KiB
C
Executable File
/*************************************************************************
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* Derived from code by Zach Gorman with the following license:
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*
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* Serial port enumeration routines
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*
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* The EnumSerialPort function will populate an array of SSerInfo structs,
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* each of which contains information about one serial port present in
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* the system. Note that this code must be linked with setupapi.lib,
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* which is included with the Win32 SDK.
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*
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* by Zach Gorman <gormanjz@hotmail.com>
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*
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* Copyright (c) 2002 Archetype Auction Software, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following condition is
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* met: Redistributions of source code must retain the above copyright
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* notice, this condition and the following disclaimer.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL ARCHETYPE AUCTION SOFTWARE OR ITS
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* AFFILIATES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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************************************************************************/
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#define INITGUID
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#include <stdio.h>
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#include <string.h>
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#include <windows.h>
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#include <initguid.h>
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#include <objbase.h>
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#include <setupapi.h>
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DEFINE_GUID(GUID_DEVINTERFACE_COMPORT, 0x86e0d1e0L, 0x8089, 0x11d0, 0x9c, 0xe4, 0x08, 0x00, 0x3e, 0x30, 0x1f, 0x73);
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#ifdef MAIN
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int CheckPort(const char* port, void* data)
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{
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printf("Found %s\n", port);
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return 0;
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}
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int main(void)
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{
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printf("serial_file returned %d\n", serial_find(NULL, CheckPort, NULL));
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return 0;
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}
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#endif
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int serial_find(const char* prefix, int (*check)(const char* port, void* data), void* data)
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{
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GUID *guidDev = (GUID *) &GUID_DEVINTERFACE_COMPORT;
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HDEVINFO hDevInfo = INVALID_HANDLE_VALUE;
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SP_DEVICE_INTERFACE_DETAIL_DATA *pDetData = NULL;
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SP_DEVICE_INTERFACE_DATA ifcData;
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DWORD dwDetDataSize;
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int rc = -1;
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BOOL bOk;
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DWORD i;
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hDevInfo = SetupDiGetClassDevs( guidDev,
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NULL,
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NULL,
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DIGCF_PRESENT | DIGCF_DEVICEINTERFACE
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);
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if(hDevInfo == INVALID_HANDLE_VALUE) {
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printf("error: SetupDiGetClassDevs failed. (err=%lx)\n", GetLastError());
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goto done;
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}
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// Enumerate the serial ports
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dwDetDataSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA) + 256;
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pDetData = (SP_DEVICE_INTERFACE_DETAIL_DATA *)malloc(dwDetDataSize);
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ifcData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
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pDetData->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
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for (i = 0, bOk = TRUE; bOk; ++i) {
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// get the next device
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bOk = SetupDiEnumDeviceInterfaces(hDevInfo, NULL, guidDev, i, &ifcData);
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if (bOk) {
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// get the device details
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SP_DEVINFO_DATA devdata = {sizeof(SP_DEVINFO_DATA)};
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bOk = SetupDiGetDeviceInterfaceDetail(hDevInfo, &ifcData, pDetData, dwDetDataSize, NULL, &devdata);
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if (bOk) {
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TCHAR fname[256], desc[256];
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// get some additional info
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BOOL bSuccess = SetupDiGetDeviceRegistryProperty(hDevInfo, &devdata, SPDRP_FRIENDLYNAME, NULL, (PBYTE)fname, sizeof(fname), NULL)
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&& SetupDiGetDeviceRegistryProperty(hDevInfo, &devdata, SPDRP_DEVICEDESC, NULL, (PBYTE)desc, sizeof(desc), NULL);
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if (bSuccess) {
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char *comx, *p;
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//printf("Device path: %s\n", pDetData->DevicePath);
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//printf("Friendly name: %s\n", fname);
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//printf("Description: %s\n", desc);
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if ((comx = strchr(fname, '(')) != NULL)
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++comx;
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else
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comx = fname;
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if ((p = strchr(comx, ')')) != NULL)
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*p = '\0';
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if ((*check)(comx, data) == 0) {
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rc = 0;
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goto done;
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}
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}
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}
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else {
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printf("error: SetupDiGetDeviceInterfaceDetail failed. (err=%lx)\n", GetLastError());
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return 1;
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}
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}
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else {
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DWORD err = GetLastError();
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if (err != ERROR_NO_MORE_ITEMS) {
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printf("error: SetupDiEnumDeviceInterfaces failed. (err=%lx)\n", err);
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goto done;
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}
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}
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}
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done:
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if (pDetData != NULL)
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free(pDetData);
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if (hDevInfo != INVALID_HANDLE_VALUE)
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SetupDiDestroyDeviceInfoList(hDevInfo);
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return rc;
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}
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