Add continuous RNG test to entropy source. Entropy callbacks now need

[oweals/openssl.git] / crypto / rand / rand_egd.c

diff --git a/crypto/rand/rand_egd.c b/crypto/rand/rand_egd.c
index e34f07c5e8307a8123ec646f77a167f0f85eebfa..9674219769e1f1c7228adc92acfce1fc491d776f 100644 (file)
--- a/crypto/rand/rand_egd.c
+++ b/crypto/rand/rand_egd.c
@@ -54,6 +54,7 @@
  *
  */
 
+#include <openssl/crypto.h>
 #include <openssl/e_os2.h>
 #include <openssl/rand.h>
 #include <openssl/buffer.h>
@@ -95,7 +96,7 @@
  *   RAND_egd() is a wrapper for RAND_egd_bytes() with numbytes=255.
  */
 
-#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_VOS)
+#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_VOS) || defined(OPENSSL_SYS_BEOS)
 int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes)
        {
        return(-1);
@@ -216,7 +217,9 @@ int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes)
            while (numbytes != 1)
                {
                num = read(fd, egdbuf, 1);
-               if (num >= 0)
+               if (num == 0)
+                       goto err;       /* descriptor closed */
+               else if (num > 0)
                    numbytes += num;
                else
                    {
@@ -246,7 +249,9 @@ int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes)
            while (numbytes != egdbuf[0])
                {
                num = read(fd, retrievebuf + numbytes, egdbuf[0] - numbytes);
-               if (num >= 0)
+               if (num == 0)
+                       goto err;       /* descriptor closed */
+               else if (num > 0)
                    numbytes += num;
                else
                    {