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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
#if defined(_WIN32)
/*
* winccld.c --- routine for dynamically loading the ccache DLL if
* it's present.
*/
#include <windows.h>
#include <stdio.h>
#include "k5-int.h"
#include "stdcc.h"
/* from fcc-proto.h */
extern const krb5_cc_ops krb5_fcc_ops;
#define KRB5_WINCCLD_C_
#include "winccld.h"
static int krb5_win_ccdll_loaded = 0;
extern void krb5_win_ccdll_load(krb5_context context);
extern int krb5_is_ccdll_loaded(void);
/*
* return codes
*/
#define LF_OK 0
#define LF_NODLL 1
#define LF_NOFUNC 2
#ifdef _WIN64
#define KRBCC_DLL "krbcc64.dll"
#else
#define KRBCC_DLL "krbcc32.dll"
#endif
static int LoadFuncs(const char* dll_name, FUNC_INFO fi[],
HINSTANCE* ph, int debug);
static int LoadFuncs(const char* dll_name, FUNC_INFO fi[],
HINSTANCE* ph, int debug)
{
HINSTANCE h;
int i, n;
int error = 0;
if (ph) *ph = 0;
for (n = 0; fi[n].func_ptr_var; n++) {
*(fi[n].func_ptr_var) = 0;
}
if (!(h = LoadLibrary(dll_name))) {
/* Get error for source debugging purposes. */
error = (int)GetLastError();
return LF_NODLL;
}
if (debug)
printf("Loaded %s\n", dll_name);
for (i = 0; !error && (i < n); i++) {
void* p = (void*)GetProcAddress(h, fi[i].func_name);
if (!p) {
if (debug)
printf("Could not get function: %s\n", fi[i].func_name);
error = 1;
} else {
*(fi[i].func_ptr_var) = p;
if (debug)
printf("Loaded function %s at 0x%08X\n", fi[i].func_name, p);
}
}
if (error) {
for (i = 0; i < n; i++) {
*(fi[i].func_ptr_var) = 0;
}
FreeLibrary(h);
return LF_NOFUNC;
}
if (ph) *ph = h;
return LF_OK;
}
void krb5_win_ccdll_load(krb5_context context)
{
krb5_cc_register(context, &krb5_fcc_ops, 0);
if (krb5_win_ccdll_loaded)
return;
if (LoadFuncs(KRBCC_DLL, krbcc_fi, 0, 0))
return; /* Error, give up */
krb5_win_ccdll_loaded = 1;
krb5_cc_dfl_ops = &krb5_cc_stdcc_ops; /* Use stdcc! */
}
int krb5_is_ccdll_loaded(void)
{
return krb5_win_ccdll_loaded;
}
#endif /* Windows */
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