gnustep/libs-base
0
0
Fork 0
mirror of https://github.com/gnustep/libs-base.git synced 2025-04-22 16:33:29 +00:00
Code Issues Projects Releases Packages Wiki Activity

get random value on mingw

Browse source 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@37486 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 2013-12-20 17:06:30 +00:00
parent ee8b3b987c
commit 50098a7d50
1 changed files with 29 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

31
Source/NSUUID.m
View file

@ -27,7 +27,11 @@
#import "Foundation/NSCoder.h"
#import "Foundation/NSUUID.h"
#if defined(__MINGW32__)
#include <wincrypt.h>
#else
#include <fcntl.h>
#endif
static int uuid_from_string(const char *string, unsigned char *uuid);
static void string_from_uuid(const unsigned char *uuid, char *string);
@ -256,8 +260,6 @@ static void string_from_uuid(const unsigned char *uuid, char *string)
static int random_uuid(unsigned char *uuid)
{
int devUrandom;
ssize_t bytesRead;
unsigned char timeByte;
unsigned char sequenceByte;
@ -265,6 +267,29 @@ static int random_uuid(unsigned char *uuid)
* consistent with Apple. Other variants suffer from privacy
* problems (and are more work...)
*/
#if defined(__MINGW32__)
HCRYPTPROV hProvider = 0;
if (!CryptAcquireContextW(&hProvider, 0, 0,
PROV_RSA_FULL, CRYPT_VERIFYCONTEXT | CRYPT_SILENT))
{
return -1;
}
if (!CryptGenRandom(hProvider, kUUIDByteCount, uuid))
{
CryptReleaseContext(hProvider, 0);
return -1;
}
CryptReleaseContext(hProvider, 0);
#else
int devUrandom;
ssize_t bytesRead;
devUrandom = open("/dev/urandom", O_RDONLY);
if (devUrandom == -1)
{
@ -276,6 +301,8 @@ static int random_uuid(unsigned char *uuid)
{
return -1;
}
#endif
/* as required by the RFC, bits 48-51 should contain 0b0100 (4)
* and bits 64-65 should contain 0b01 (1)
*/