From: Pat Thoyts <patthoyts@users.sourceforge.net>
Date: Tue, 12 Aug 2014 12:36:54 +0000 (+0100)
Subject: Initial version imported to git.
X-Git-Url: http://privyetmir.co.uk/gitweb.cgi?a=commitdiff_plain;h=9e7ffb3c5cbd176645a997fe5a17995c0d0e69d3;p=lscomport.git

Initial version imported to git.
---

9e7ffb3c5cbd176645a997fe5a17995c0d0e69d3
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6467923
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/Build/
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..d0f8ec2
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,15 @@
+# CMake Makefile Generator:
+#
+# usage: mkdir build && cd build && cmake ..
+# note - rebuild can be done also as:
+#   cmake --build . --clean-first --target demo
+
+cmake_minimum_required(VERSION 2.8)
+project(lscomport)
+add_executable(lscomport  lscomport.c)
+
+if (MSVC)
+  add_definitions(-W3 -MD -D_CRT_SECURE_NO_WARNINGS)
+else()
+  add_definitions(-std=c99 -Wall)
+endif()
diff --git a/lscomport.c b/lscomport.c
new file mode 100644
index 0000000..e6589a8
--- /dev/null
+++ b/lscomport.c
@@ -0,0 +1,140 @@
+/* lscomport.c - Copyright (C) 2004 Pat Thoyts <patthoyts@users.sourceforge.net>
+ *
+ * List all COM ports (esp. including USB devices)
+ *
+ */
+
+#define STRICT
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <tchar.h>
+#include <setupapi.h>
+#include <stdio.h>
+
+#ifdef _MSC_VER
+#pragma comment(lib, "advapi32")
+#pragma comment(lib, "setupapi")
+#pragma comment(lib, "user32")
+#endif
+
+typedef struct tagSERIALPORTINFO
+{
+    int    nPortNumber;
+    LPTSTR pszPortName;
+    LPTSTR pszFriendlyName;
+    struct tagSERIALPORTINFO* next;
+} SERIALPORTINFO, *LPSERIALPORTINFO;
+
+BOOL  GetSerialPortInfo(LPSERIALPORTINFO *ppInfo);
+
+/* ---------------------------------------------------------------------- */
+
+int
+_tmain(int argc, TCHAR *argv[])
+{
+    LPSERIALPORTINFO pPortInfo = 0;
+    GetSerialPortInfo(&pPortInfo);
+    while (pPortInfo) {
+        LPSERIALPORTINFO p = pPortInfo;
+        pPortInfo = pPortInfo->next;
+        _tprintf(_T("Port %d '%s'\n"), p->nPortNumber, p->pszFriendlyName);
+        HeapFree(GetProcessHeap(), 0, p->pszPortName);
+        HeapFree(GetProcessHeap(), 0, p->pszFriendlyName);
+        HeapFree(GetProcessHeap(), 0, p);
+    }
+    return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+static HANDLE
+SetupEnumeratePorts()
+{
+    HDEVINFO hDevices = INVALID_HANDLE_VALUE;
+    DWORD dwGuids = 0;
+    BOOL br = SetupDiClassGuidsFromName(_T("Ports"), 0, 0, &dwGuids);
+    if (dwGuids) {
+        LPGUID pguids = (LPGUID)HeapAlloc(GetProcessHeap(), 0, sizeof(GUID) * dwGuids);
+        if (pguids) {
+            br = SetupDiClassGuidsFromName(_T("Ports"), pguids, dwGuids, &dwGuids);
+            if (br) {
+                hDevices = SetupDiGetClassDevs(pguids, NULL, NULL, DIGCF_PRESENT);
+            }
+            HeapFree(GetProcessHeap(), 0, pguids);
+        }
+    }
+    return hDevices;
+}
+
+static BOOL
+EndEnumeratePorts(HANDLE hDevices)
+{
+    if (SetupDiDestroyDeviceInfoList(hDevices)) {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+BOOL
+GetSerialPortInfo(LPSERIALPORTINFO *ppInfo)
+{
+    HANDLE hDevices = SetupEnumeratePorts();
+    BOOL br = TRUE;
+    LPSERIALPORTINFO pHead = 0, pTail = 0;
+    DWORD nDevice = 0;
+
+    for (nDevice = 0; br ; nDevice++)
+    {
+        DWORD cbData = 0;
+        SP_DEVINFO_DATA deviceData;
+
+        deviceData.cbSize = sizeof(SP_DEVINFO_DATA);
+        br = SetupDiEnumDeviceInfo(hDevices, nDevice, &deviceData);
+        if (br)
+        {
+            TCHAR sz[16] = {0};
+            HKEY hkey = SetupDiOpenDevRegKey(hDevices, &deviceData, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_READ);
+            if (hkey)
+            {
+                DWORD cbSize = 16 * sizeof(TCHAR);
+                RegQueryValueEx(hkey, _T("PortName"), NULL, NULL, (LPBYTE)sz, &cbSize);
+                RegCloseKey(hkey);
+            }
+            CharUpper(sz);
+            if (sz[0] == _T('C') && sz[1] == _T('O') && sz[2] == _T('M'))
+            {
+                LPSERIALPORTINFO pInfo =
+                    (LPSERIALPORTINFO)HeapAlloc(GetProcessHeap(), 0, sizeof(SERIALPORTINFO));
+                pInfo->next = 0;
+                pInfo->pszPortName =
+                    (LPTSTR)HeapAlloc(GetProcessHeap(), 0, sizeof(TCHAR) * (lstrlen(sz) + 1));
+                lstrcpy(pInfo->pszPortName, sz);
+                pInfo->nPortNumber = _ttoi(&sz[3]);
+
+                SetupDiGetDeviceRegistryProperty(hDevices, &deviceData, SPDRP_FRIENDLYNAME,
+                                                 NULL, NULL, 0, &cbData);
+                if (cbData)
+                {
+                    pInfo->pszFriendlyName =
+                        (LPTSTR)HeapAlloc(GetProcessHeap(), 0, cbData + sizeof(TCHAR));
+                    br = SetupDiGetDeviceRegistryProperty(hDevices, &deviceData, SPDRP_FRIENDLYNAME,
+                                                      NULL, (LPBYTE)pInfo->pszFriendlyName, cbData, NULL);
+                    pInfo->pszFriendlyName[cbData] = 0;
+                }
+
+                if (pTail == 0)
+                {
+                    pHead = pTail = pInfo;
+                }
+                else
+                {
+                    pTail->next = pInfo;
+                    pTail = pInfo;
+                }
+            }
+        }
+    }
+    EndEnumeratePorts(hDevices);
+    *ppInfo = pHead;
+    return br;
+}