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emscripten doesnt have arc4random but wasi does?

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lizzie 2026-06-08 23:33:26 +00:00
parent 4b3b735486
commit 7bf1ed8ce6
1 changed files with 12 additions and 8 deletions
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20
.patch/openssl/0002-wasm-support.patch
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@ -30,16 +30,18 @@ index e62721e..6fcea0d 100644
"uClinux-dist" => {
inherit_from => [ "BASE_unix" ],
diff --git a/crypto/rand/rand_lib.c b/crypto/rand/rand_lib.c
index d9e8f02..0bd63b0 100644
index d9e8f02..7faf347 100644
--- a/crypto/rand/rand_lib.c
+++ b/crypto/rand/rand_lib.c
@@ -379,17 +379,25 @@ void RAND_add(const void *buf, int num, double randomness)
@@ -379,17 +379,27 @@ void RAND_add(const void *buf, int num, double randomness)
#if !defined(OPENSSL_NO_DEPRECATED_1_1_0)
int RAND_pseudo_bytes(unsigned char *buf, int num)
{
+#ifdef __EMSCRIPTEN__
+#if defined(__wasi__)
+ arc4random_buf(buf, num);
+ return 1;
+#elif defined(__EMSCRIPTEN__)
+ return 1;
+#else
const RAND_METHOD *meth = RAND_get_rand_method();
@ -53,13 +55,13 @@ index d9e8f02..0bd63b0 100644
int RAND_status(void)
{
+#ifdef __EMSCRIPTEN__
+#if defined(__EMSCRIPTEN__) || defined(__wasi__)
+ return 1;
+#else
EVP_RAND_CTX *rand;
#ifndef OPENSSL_NO_DEPRECATED_3_0
const RAND_METHOD *meth = RAND_get_rand_method();
@@ -401,6 +409,7 @@ int RAND_status(void)
@@ -401,6 +411,7 @@ int RAND_status(void)
if ((rand = RAND_get0_primary(NULL)) == NULL)
return 0;
return EVP_RAND_get_state(rand) == EVP_RAND_STATE_READY;
@ -67,18 +69,20 @@ index d9e8f02..0bd63b0 100644
}
#else /* !FIPS_MODULE */
@@ -420,6 +429,10 @@ const RAND_METHOD *RAND_get_rand_method(void)
@@ -420,6 +431,12 @@ const RAND_METHOD *RAND_get_rand_method(void)
int RAND_priv_bytes_ex(OSSL_LIB_CTX *ctx, unsigned char *buf, size_t num,
unsigned int strength)
{
+#ifdef __EMSCRIPTEN__
+#if defined(__wasi__)
+ arc4random_buf(buf, num);
+ return 1;
+#elif defined(__EMSCRIPTEN__)
+ return 1;
+#else
RAND_GLOBAL *dgbl;
EVP_RAND_CTX *rand;
#if !defined(OPENSSL_NO_DEPRECATED_3_0) && !defined(FIPS_MODULE)
@@ -451,6 +464,7 @@ int RAND_priv_bytes_ex(OSSL_LIB_CTX *ctx, unsigned char *buf, size_t num,
@@ -451,6 +468,7 @@ int RAND_priv_bytes_ex(OSSL_LIB_CTX *ctx, unsigned char *buf, size_t num,
return EVP_RAND_generate(rand, buf, num, strength, 0, NULL, 0);
return 0;