Compile with -pedantic.

[libserialport.git] / windows.c

diff --git a/windows.c b/windows.c
index 13be8f5827794a810285bd335ae7f387f189de19..78b6ce9babf6685bed794b17bf974e09084c829f 100644 (file)
--- a/windows.c
+++ b/windows.c
@@ -1,6 +1,7 @@
 /*
  * This file is part of the libserialport project.
  *
+ * Copyright (C) 2013-2014 Martin Ling <martin-libserialport@earth.li>
  * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org>
  *
  * This program is free software: you can redistribute it and/or modify
@@ -330,7 +331,7 @@ static void get_usb_details(struct sp_port *port, DEVINST dev_inst_match)
        return;
 }
 
-enum sp_return get_port_details(struct sp_port *port)
+SP_PRIV enum sp_return get_port_details(struct sp_port *port)
 {
        /* Description limited to 127 char,
           anything longer would not be user friendly anyway */
@@ -454,3 +455,77 @@ enum sp_return get_port_details(struct sp_port *port)
        RETURN_OK();
 }
 
+SP_PRIV enum sp_return list_ports(struct sp_port ***list)
+{
+       HKEY key;
+       TCHAR *value, *data;
+       DWORD max_value_len, max_data_size, max_data_len;
+       DWORD value_len, data_size, data_len;
+       DWORD type, index = 0;
+       char *name;
+       int name_len;
+       int ret = SP_OK;
+
+       DEBUG("Opening registry key");
+       if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"),
+                       0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) {
+               SET_FAIL(ret, "RegOpenKeyEx() failed");
+               goto out_done;
+       }
+       DEBUG("Querying registry key value and data sizes");
+       if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+                               &max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) {
+               SET_FAIL(ret, "RegQueryInfoKey() failed");
+               goto out_close;
+       }
+       max_data_len = max_data_size / sizeof(TCHAR);
+       if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR)))) {
+               SET_ERROR(ret, SP_ERR_MEM, "registry value malloc failed");
+               goto out_close;
+       }
+       if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR)))) {
+               SET_ERROR(ret, SP_ERR_MEM, "registry data malloc failed");
+               goto out_free_value;
+       }
+       DEBUG("Iterating over values");
+       while (
+               value_len = max_value_len + 1,
+               data_size = max_data_size,
+               RegEnumValue(key, index, value, &value_len,
+                       NULL, &type, (LPBYTE)data, &data_size) == ERROR_SUCCESS)
+       {
+               data_len = data_size / sizeof(TCHAR);
+               data[data_len] = '\0';
+#ifdef UNICODE
+               name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL);
+#else
+               name_len = data_len + 1;
+#endif
+               if (!(name = malloc(name_len))) {
+                       SET_ERROR(ret, SP_ERR_MEM, "registry port name malloc failed");
+                       goto out;
+               }
+#ifdef UNICODE
+               WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL);
+#else
+               strcpy(name, data);
+#endif
+               if (type == REG_SZ) {
+                       DEBUG("Found port %s", name);
+                       if (!(*list = list_append(*list, name))) {
+                               SET_ERROR(ret, SP_ERR_MEM, "list append failed");
+                               goto out;
+                       }
+               }
+               index++;
+       }
+out:
+       free(data);
+out_free_value:
+       free(value);
+out_close:
+       RegCloseKey(key);
+out_done:
+
+       return ret;
+}