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Use rand_s for Windoze

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unsigned int is always 4 bytes on windows btw, so this should align properly.
This commit is contained in:
James R 2020-09-30 12:21:33 -07:00
parent b8bfe9b83a
commit 81a7103b73
1 changed files with 24 additions and 10 deletions
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34
src/stun.c
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@ -14,7 +14,7 @@
#if defined (__linux__)
#include <sys/random.h>
#elif defined (_WIN32)
//#include <ntsecapi.h>
#define _CRT_RAND_S
#elif defined (__APPLE__)
#include <CommonCrypto/CommonRandom.h>
#else
@ -85,6 +85,28 @@ STUN_node (void)
return node;
}
static void
csprng
(
void * const buffer,
const size_t size
){
#if defined (_WIN32)
size_t o;
for (o = 0; o < size; o += sizeof (unsigned int))
{
rand_s((unsigned int *)&((char *)buffer)[o]);
}
#elif defined (__linux__)
getrandom(buffer, size, 0U);
#elif defined (__APPLE__)
CCRandomGenerateBytes(buffer, size);
#elif defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__)
arc4random_buf(buffer, size);
#endif
}
void
STUN_bind (stun_callback_t callback)
{
@ -97,15 +119,7 @@ STUN_bind (stun_callback_t callback)
doomcom->remotenode = node;
doomcom->datalength = 20;
#if defined (__linux__)
getrandom(transaction_id, 12U, 0U);
#elif defined (_WIN32)
//RtlGenRandom(transaction_id, 12UL);
#elif defined (__APPLE__)
CCRandomGenerateBytes(stun_transcation_id, 12U);
#elif defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__)
arc4random_buf(transaction_id, 12U);
#endif
csprng(transaction_id, 12U);
memcpy(&doomcom->data[0], &type, 2U);
memset(&doomcom->data[2], 0, 2U);