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Make the use of logstream thread-safe.

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This commit is contained in:
Richard Levitte 2000-06-29 16:32:34 +00:00
parent 5971d37400
commit 70d03c4f59
1 changed files with 16 additions and 2 deletions
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18
crypto/engine/hw_ncipher.c
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@ -451,7 +451,8 @@ static int hwcrhk_finish()
goto err;
}
err:
logstream = NULL;
if (logstream)
BIO_free(logstream);
hwcrhk_dso = NULL;
p_hwcrhk_Init = NULL;
p_hwcrhk_Finish = NULL;
@ -470,7 +471,15 @@ static int hwcrhk_ctrl(int cmd, long i, void *p, void (*f)())
switch(cmd)
{
case ENGINE_CTRL_SET_LOGSTREAM:
logstream = (BIO *)p;
if (logstream)
{
BIO_free(logstream);
logstream = NULL;
}
if (CRYPTO_add(&bio->references,1,CRYPTO_LOCK_BIO) > 1)
logstream = (BIO *)p;
else
ENGINEerr(ENGINE_F_HWCRHK_CTRL,ENGINE_R_BIO_WAS_FREED);
break;
default:
ENGINEerr(ENGINE_F_HWCRHK_CTRL,
@ -748,10 +757,15 @@ static void hwcrhk_mutex_destroy(HWCryptoHook_Mutex *mt)
static void log_message(void *logstream, const char *message)
{
BIO *lstream = NULL;
CRYPTO_w_lock(CRYPTO_LOCK_BIO);
if (logstream)
lstream=*(BIO **)logstream;
if (lstream)
{
BIO_write(lstream, message, strlen(message));
}
CRYPTO_w_unlock(CRYPTO_LOCK_BIO);
}
#endif /* HW_NCIPHER */