netcdf-c/libdispatch/dreg.c

60 lines
1.5 KiB
C

/*
* Copyright 2018, University Corporation for Atmospheric Research
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <windows.h>
#include <io.h>
#include <wchar.h>
#include <locale.h>
//#include <direct.h>
#if defined(DLL_NETCDF) /* define when library is a DLL */
# if defined(DLL_EXPORT) /* define when building the library */
# define MSC_EXTRA __declspec(dllexport)
# else
# define MSC_EXTRA __declspec(dllimport)
# endif
#else
# define MSC_EXTRA
#endif /* defined(DLL_NETCDF) */
#ifndef EXTERNL
# define EXTERNL MSC_EXTRA extern
#endif
EXTERNL
int
getmountpoint(char* keyvalue, size_t size)
{
/* See if we can get the MSYS2|CYGWIN prefix from the registry */
LSTATUS stat;
const LPCSTR rpath = "SOFTWARE\\Cygwin\\setup\\";
const LPCSTR leaf = "rootdir";
HKEY key;
if(size == 0 || keyvalue == NULL)
return -1;
keyvalue[0] = '\0';
stat = RegOpenKeyA(HKEY_LOCAL_MACHINE, rpath, &key);
if(stat != ERROR_SUCCESS) {
// wprintf(L"RegOpenKeyA failed. Error code: %li\n", stat);
goto done;
}
stat = RegGetValueA(key, NULL, leaf, RRF_RT_REG_SZ, NULL, (PVOID)keyvalue, (LPDWORD)&size);
if(stat != ERROR_SUCCESS) {
// wprintf(L"RegGetValueA failed. Error code: %li\n", stat);
goto done;
}
done:
return (stat == ERROR_SUCCESS ? 0 : -1);
}