Fix checking the return value of getentropy()

Reviewed-by: N Andy Polyakov <appro@openssl.org> GH: #6405

Fix checking the return value of getentropy()
Reviewed-by: N Andy Polyakov <appro@openssl.org> GH: #6405
1e653d0f · Kurt Roeckx · 2545f944 · 1e653d0f
隐藏空白更改
内联并排

Showing with 1 addition and 1 deletion

crypto/rand/rand_unix.c crypto/rand/rand_unix.c +1 -1

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--- a/crypto/rand/rand_unix.c
+++ b/crypto/rand/rand_unix.c
@@ -249,7 +249,7 @@ int syscall_random(void *buf, size_t buflen)
     */
    p_getentropy.p = DSO_global_lookup("getentropy");
    if (p_getentropy.p != NULL)
-        return p_getentropy.f(buf, buflen);
+        return p_getentropy.f(buf, buflen) == 0 ? buflen : 0;

    /* Linux supports this since version 3.17 */
 #  if defined(__linux) && defined(SYS_getrandom)