security_cdsa_utils.c [plain text]
#include <security_cdsa_utils/cuEnc64.h>
#include <security_cdsa_utils/cuCdsaUtils.h>
#include <CFNetwork/CFNetworkInternal.h>
#include <sys/errno.h>
#include <mach-o/dyld.h>
#if DYNAMICALLY_LOAD_CDSA_UTILS
static const void* cdsa_utils = NULL;
static const char* const kCDSAUtilsPath = "/usr/local/SecurityPieces/Frameworks/security_cdsa_utils.framework/Versions/A/security_cdsa_utils";
static CSSM_HANDLE returns_CSSM_HANDLE(void) { return CSSM_INVALID_HANDLE; }
static CSSM_RETURN returns_CSSM_RETURN(void) { return -1; }
static unsigned char* returns_uchar(void) { return NULL; }
#define GET_DYNAMIC_SYMBOL(sym, rettype, arglist, alt) \
static rettype (* sym##_proc)arglist = NULL; \
if (sym##_proc == NULL) { \
if (cdsa_utils || (cdsa_utils = __CFNetworkLoadFramework(kCDSAUtilsPath))) \
sym##_proc = (rettype(*)arglist)NSAddressOfSymbol(NSLookupSymbolInImage(cdsa_utils, "_"#sym, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND)); \
if (! sym##_proc) sym##_proc = (rettype(*)arglist)alt; \
}
CSSM_CSP_HANDLE
cuCspStartup(CSSM_BOOL bareCsp) {
GET_DYNAMIC_SYMBOL(cuCspStartup, CSSM_CSP_HANDLE, (CSSM_BOOL), returns_CSSM_HANDLE);
return (*cuCspStartup_proc)(bareCsp);
}
CSSM_RETURN
cuCspDetachUnload(CSSM_CSP_HANDLE cspHand, CSSM_BOOL bareCsp) {
GET_DYNAMIC_SYMBOL(cuCspDetachUnload, CSSM_RETURN, (CSSM_CSP_HANDLE, CSSM_BOOL), returns_CSSM_RETURN);
return (*cuCspDetachUnload_proc)(cspHand, bareCsp);
}
unsigned char*
cuEnc64(const unsigned char *inbuf, unsigned inlen, unsigned *outlen) {
GET_DYNAMIC_SYMBOL(cuEnc64, unsigned char*, (const unsigned char*, unsigned, unsigned*), returns_uchar);
return (*cuEnc64_proc)(inbuf, inlen, outlen);
}
unsigned char*
cuDec64(const unsigned char *inbuf, unsigned inlen, unsigned *outlen) {
GET_DYNAMIC_SYMBOL(cuDec64, unsigned char*, (const unsigned char*, unsigned, unsigned*), returns_uchar);
return (*cuDec64_proc)(inbuf, inlen, outlen);
}
#undef GET_DYNAMIC_SYMBOL
#endif