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/*
* Copyright (c) 1997 Cygnus Solutions
*
* Author: Michael Graff
*/
#include <stdlib.h>
#include <windows.h>
#include <windowsx.h>
#include "registry.h"
HKEY
registry_open(HKEY hkey, char *base, REGSAM sam)
{
HKEY k = INVALID_HANDLE_VALUE;
DWORD err;
/*
* if the base path is null, return the already open key in hkey
*/
if (base == NULL)
return hkey;
err = RegOpenKeyEx(hkey, base, 0, sam, &hkey);
if (err != ERROR_SUCCESS)
return INVALID_HANDLE_VALUE;
return hkey;
}
void
registry_close(HKEY hkey)
{
CloseHandle(hkey);
}
HKEY
registry_key_create(HKEY hkey, char *sub, REGSAM sam)
{
HKEY key;
DWORD err;
DWORD disp;
err = RegCreateKeyEx(hkey, sub, 0, 0, REG_OPTION_NON_VOLATILE, sam,
NULL, &key, &disp);
if (err != ERROR_SUCCESS)
return INVALID_HANDLE_VALUE;
return key;
}
int
registry_key_delete(HKEY hkey, char *sub)
{
DWORD err;
err = RegDeleteKey(hkey, sub);
if (err != ERROR_SUCCESS)
return -1;
return 0;
}
int
registry_string_get(HKEY hkey, char *sub, char **val)
{
DWORD err;
DWORD type;
DWORD datasize;
err = RegQueryValueEx(hkey, sub, 0, &type, 0, &datasize);
if (err != ERROR_SUCCESS || type != REG_SZ) {
*val = NULL;
return -1;
}
*val = malloc(datasize);
if (*val == NULL)
return -1;
err = RegQueryValueEx(hkey, sub, 0, &type, *val, &datasize);
if (err != ERROR_SUCCESS) {
free(*val);
*val = NULL;
return -1;
}
return 0;
}
int
registry_dword_get(HKEY hkey, char *sub, DWORD *val)
{
DWORD err;
DWORD type;
DWORD datasize;
err = RegQueryValueEx(hkey, sub, 0, &type, 0, &datasize);
if (err != ERROR_SUCCESS || type != REG_DWORD) {
*val = 0;
return -1;
}
err = RegQueryValueEx(hkey, sub, 0, &type, (BYTE *)val, &datasize);
if (err != ERROR_SUCCESS) {
*val = 0;
return -1;
}
return 0;
}
int
registry_string_set(HKEY hkey, char *sub, char *x)
{
DWORD err;
err = RegSetValueEx(hkey, sub, 0, REG_SZ, (BYTE *)x, (DWORD)strlen(x) + 1);
if (err != ERROR_SUCCESS)
return -1;
return 0;
}
int
registry_dword_set(HKEY hkey, char *sub, DWORD x)
{
DWORD err;
err = RegSetValueEx(hkey, sub, 0, REG_DWORD, (CONST BYTE *)&x, sizeof(DWORD));
if (err != ERROR_SUCCESS)
return -1;
return 0;
}
int
registry_keyval_dword_set(HKEY hkey, char *base, char *sub, DWORD val)
{
HKEY k;
int err;
k = registry_open(hkey, base, KEY_WRITE);
if (k == INVALID_HANDLE_VALUE)
return -1;
err = registry_dword_set(k, sub, val);
registry_close(k);
return err;
}
int
registry_keyval_dword_get(HKEY hkey, char *base, char *sub, DWORD *val)
{
HKEY k;
int err;
k = registry_open(hkey, base, KEY_READ);
if (k == INVALID_HANDLE_VALUE)
return -1;
err = registry_dword_get(k, sub, val);
registry_close(k);
return err;
}
int
registry_keyval_string_get(HKEY hkey, char *base, char *sub, char **val)
{
HKEY k;
int err;
k = registry_open(hkey, base, KEY_READ);
if (k == INVALID_HANDLE_VALUE) {
*val = NULL;
return -1;
}
err = registry_string_get(k, sub, val);
registry_close(k);
return err;
}
int
registry_keyval_string_set(HKEY hkey, char *base, char *sub, char *val)
{
HKEY k;
int err;
k = registry_open(hkey, base, KEY_WRITE);
if (k == INVALID_HANDLE_VALUE)
return -1;
err = registry_string_set(k, sub, val);
registry_close(k);
return err;
}
int
registry_value_delete(HKEY hkey, char *sub)
{
if (RegDeleteValue(hkey, sub))
return -1;
return 0;
}
int
registry_keyval_delete(HKEY hkey, char *base, char *sub)
{
HKEY k;
int err;
k = registry_open(hkey, base, KEY_WRITE);
if (k == INVALID_HANDLE_VALUE)
return -1;
err = registry_value_delete(k, sub);
registry_close(k);
return err;
}
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