- Changed the used random function pointer to more flexible format. Renamed havege_rand() to havege_random() to prevent mistakes. Lots of changes as a consequence in library code and programs

diff --git a/programs/pkey/dh_client.c b/programs/pkey/dh_client.c
index ab7b9a6..7b13e91 100644
--- a/programs/pkey/dh_client.c
+++ b/programs/pkey/dh_client.c
@@ -207,7 +207,7 @@
 
     n = dhm.len;
     if( ( ret = dhm_make_public( &dhm, 256, buf, n,
-                                 havege_rand, &hs ) ) != 0 )
+                                 havege_random, &hs ) ) != 0 )
     {
         printf( " failed\n  ! dhm_make_public returned %d\n\n", ret );
         goto exit;
diff --git a/programs/pkey/dh_genprime.c b/programs/pkey/dh_genprime.c
index f6ae03f..ae31a1e 100644
--- a/programs/pkey/dh_genprime.c
+++ b/programs/pkey/dh_genprime.c
@@ -80,7 +80,7 @@
      * This can take a long time...
      */
     if( ( ret = mpi_gen_prime( &P, DH_P_SIZE, 1,
-                               havege_rand, &hs ) ) != 0 )
+                               havege_random, &hs ) ) != 0 )
     {
         printf( " failed\n  ! mpi_gen_prime returned %d\n\n", ret );
         goto exit;
@@ -101,7 +101,7 @@
         goto exit;
     }
 
-    if( ( ret = mpi_is_prime( &Q, havege_rand, &hs ) ) != 0 )
+    if( ( ret = mpi_is_prime( &Q, havege_random, &hs ) ) != 0 )
     {
         printf( " failed\n  ! mpi_is_prime returned %d\n\n", ret );
         goto exit;
diff --git a/programs/pkey/dh_server.c b/programs/pkey/dh_server.c
index de2ce97..70af54c 100644
--- a/programs/pkey/dh_server.c
+++ b/programs/pkey/dh_server.c
@@ -172,7 +172,7 @@
     memset( buf, 0, sizeof( buf ) );
 
     if( ( ret = dhm_make_params( &dhm, 256, buf, &n,
-                                 havege_rand, &hs ) ) != 0 )
+                                 havege_random, &hs ) ) != 0 )
     {
         printf( " failed\n  ! dhm_make_params returned %d\n\n", ret );
         goto exit;
diff --git a/programs/pkey/rsa_encrypt.c b/programs/pkey/rsa_encrypt.c
index 0b54a17..63e2f13 100644
--- a/programs/pkey/rsa_encrypt.c
+++ b/programs/pkey/rsa_encrypt.c
@@ -110,7 +110,7 @@
     printf( "\n  . Generating the RSA encrypted value" );
     fflush( stdout );
 
-    if( ( ret = rsa_pkcs1_encrypt( &rsa, havege_rand, &hs, RSA_PUBLIC, strlen( argv[1] ), input, buf ) ) != 0 )
+    if( ( ret = rsa_pkcs1_encrypt( &rsa, havege_random, &hs, RSA_PUBLIC, strlen( argv[1] ), input, buf ) ) != 0 )
     {
         printf( " failed\n  ! rsa_pkcs1_encrypt returned %d\n\n", ret );
         goto exit;
diff --git a/programs/pkey/rsa_genkey.c b/programs/pkey/rsa_genkey.c
index d7158b4..e2d06fa 100644
--- a/programs/pkey/rsa_genkey.c
+++ b/programs/pkey/rsa_genkey.c
@@ -74,7 +74,7 @@
 
     rsa_init( &rsa, RSA_PKCS_V15, 0 );
     
-    if( ( ret = rsa_gen_key( &rsa, havege_rand, &hs, KEY_SIZE, EXPONENT ) ) != 0 )
+    if( ( ret = rsa_gen_key( &rsa, havege_random, &hs, KEY_SIZE, EXPONENT ) ) != 0 )
     {
         printf( " failed\n  ! rsa_gen_key returned %d\n\n", ret );
         goto exit;
diff --git a/programs/pkey/rsa_sign_pss.c b/programs/pkey/rsa_sign_pss.c
index e33cead..3174599 100644
--- a/programs/pkey/rsa_sign_pss.c
+++ b/programs/pkey/rsa_sign_pss.c
@@ -105,7 +105,7 @@
         goto exit;
     }
 
-    if( ( ret = rsa_pkcs1_sign( &rsa, havege_rand, &hs, RSA_PRIVATE, SIG_RSA_SHA1,
+    if( ( ret = rsa_pkcs1_sign( &rsa, havege_random, &hs, RSA_PRIVATE, SIG_RSA_SHA1,
                                 20, hash, buf ) ) != 0 )
     {
         printf( " failed\n  ! rsa_pkcs1_sign returned %d\n\n", ret );
diff --git a/programs/random/gen_random.c b/programs/random/gen_random.c
index 6a7aa3a..20246fe 100644
--- a/programs/random/gen_random.c
+++ b/programs/random/gen_random.c
@@ -44,7 +44,7 @@
 {
     FILE *f;
     time_t t;
-    int i, j, k;
+    int i, k;
     havege_state hs;
     unsigned char buf[1024];
 
@@ -66,8 +66,12 @@
 
     for( i = 0, k = 768; i < k; i++ )
     {
-        for( j = 0; j < (int) sizeof( buf ); j++ )
-            buf[j] = havege_rand( &hs );
+        if( havege_random( &hs, buf, sizeof( buf ) ) != 0 )
+        {
+            printf( "Failed to get random from source.\n" );
+            fclose( f );
+            return( 1 );
+        }
 
         fwrite( buf, sizeof( buf ), 1, f );
 
diff --git a/programs/ssl/ssl_client1.c b/programs/ssl/ssl_client1.c
index b57fe8d..0bfad1f 100644
--- a/programs/ssl/ssl_client1.c
+++ b/programs/ssl/ssl_client1.c
@@ -35,6 +35,7 @@
 #include "polarssl/net.h"
 #include "polarssl/ssl.h"
 #include "polarssl/havege.h"
+#include "polarssl/error.h"
 
 #define SERVER_PORT 4433
 #define SERVER_NAME "localhost"
@@ -116,7 +117,7 @@
     ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
     ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
 
-    ssl_set_rng( &ssl, havege_rand, &hs );
+    ssl_set_rng( &ssl, havege_random, &hs );
     ssl_set_dbg( &ssl, my_debug, stdout );
     ssl_set_bio( &ssl, net_recv, &server_fd,
                        net_send, &server_fd );
@@ -183,6 +184,15 @@
 
 exit:
 
+#ifdef POLARSSL_ERROR_C
+    if( ret != 0 )
+    {
+        char error_buf[100];
+        error_strerror( ret, error_buf, 100 );
+        printf("Last error was: %d - %s\n\n", ret, error_buf );
+    }
+#endif
+
     net_close( server_fd );
     ssl_free( &ssl );
 
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index de0af25..3825106 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -38,6 +38,7 @@
 #include "polarssl/havege.h"
 #include "polarssl/certs.h"
 #include "polarssl/x509.h"
+#include "polarssl/error.h"
 
 #define DFL_SERVER_NAME         "localhost"
 #define DFL_SERVER_PORT         4433
@@ -328,7 +329,7 @@
     ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
     ssl_set_authmode( &ssl, SSL_VERIFY_OPTIONAL );
 
-    ssl_set_rng( &ssl, havege_rand, &hs );
+    ssl_set_rng( &ssl, havege_random, &hs );
     ssl_set_dbg( &ssl, my_debug, stdout );
     ssl_set_bio( &ssl, net_recv, &server_fd,
                        net_send, &server_fd );
@@ -452,6 +453,15 @@
 
 exit:
 
+#ifdef POLARSSL_ERROR_C
+    if( ret != 0 )
+    {
+        char error_buf[100];
+        error_strerror( ret, error_buf, 100 );
+        printf("Last error was: %d - %s\n\n", ret, error_buf );
+    }
+#endif
+
     if( server_fd )
         net_close( server_fd );
     x509_free( &clicert );
diff --git a/programs/ssl/ssl_fork_server.c b/programs/ssl/ssl_fork_server.c
index 411eac1..85803d3 100644
--- a/programs/ssl/ssl_fork_server.c
+++ b/programs/ssl/ssl_fork_server.c
@@ -333,7 +333,7 @@
         ssl_set_endpoint( &ssl, SSL_IS_SERVER );
         ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
 
-        ssl_set_rng( &ssl, havege_rand, &hs );
+        ssl_set_rng( &ssl, havege_random, &hs );
         ssl_set_dbg( &ssl, my_debug, stdout );
         ssl_set_bio( &ssl, net_recv, &client_fd,
                            net_send, &client_fd );
diff --git a/programs/ssl/ssl_mail_client.c b/programs/ssl/ssl_mail_client.c
index 8034a24..3f4bd75 100644
--- a/programs/ssl/ssl_mail_client.c
+++ b/programs/ssl/ssl_mail_client.c
@@ -581,7 +581,7 @@
     ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
     ssl_set_authmode( &ssl, SSL_VERIFY_OPTIONAL );
 
-    ssl_set_rng( &ssl, havege_rand, &hs );
+    ssl_set_rng( &ssl, havege_random, &hs );
     ssl_set_dbg( &ssl, my_debug, stdout );
     ssl_set_bio( &ssl, net_recv, &server_fd,
             net_send, &server_fd );
diff --git a/programs/ssl/ssl_server.c b/programs/ssl/ssl_server.c
index 1c6fec2..8a49140 100644
--- a/programs/ssl/ssl_server.c
+++ b/programs/ssl/ssl_server.c
@@ -42,6 +42,7 @@
 #include "polarssl/x509.h"
 #include "polarssl/ssl.h"
 #include "polarssl/net.h"
+#include "polarssl/error.h"
 
 #define HTTP_RESPONSE \
     "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" \
@@ -261,7 +262,6 @@
     printf( "  . Setting up the RNG and SSL data...." );
     fflush( stdout );
 
-    memset( &ssl, 0, sizeof( ssl ) );
     havege_init( &hs );
 
     if( ( ret = ssl_init( &ssl ) ) != 0 )
@@ -273,7 +273,7 @@
     ssl_set_endpoint( &ssl, SSL_IS_SERVER );
     ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
 
-    ssl_set_rng( &ssl, havege_rand, &hs );
+    ssl_set_rng( &ssl, havege_random, &hs );
     ssl_set_dbg( &ssl, my_debug, stdout );
 
     ssl_set_scb( &ssl, my_get_session,
@@ -291,6 +291,15 @@
     printf( " ok\n" );
 
 reset:
+#ifdef POLARSSL_ERROR_C
+    if( ret != 0 )
+    {
+        char error_buf[100];
+        error_strerror( ret, error_buf, 100 );
+        printf("Last error was: %d - %s\n\n", ret, error_buf );
+    }
+#endif
+
     if( client_fd != -1 )
         net_close( client_fd );
 
@@ -420,12 +429,22 @@
 
     len = ret;
     printf( " %d bytes written\n\n%s\n", len, (char *) buf );
-
+    
     ssl_close_notify( &ssl );
+    ret = 0;
     goto reset;
 
 exit:
 
+#ifdef POLARSSL_ERROR_C
+    if( ret != 0 )
+    {
+        char error_buf[100];
+        error_strerror( ret, error_buf, 100 );
+        printf("Last error was: %d - %s\n\n", ret, error_buf );
+    }
+#endif
+
     net_close( client_fd );
     x509_free( &srvcert );
     rsa_free( &rsa );
diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index 091a9cf..1588b47 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -47,12 +47,27 @@
 
 #define BUFSIZE 1024
 
-static int myrand( void *rng_state )
+static int myrand( void *rng_state, unsigned char *output, size_t len )
 {
+    size_t use_len;
+    int rnd;
+
     if( rng_state != NULL )
         rng_state  = NULL;
 
-    return( rand() );
+    while( len > 0 )
+    {
+        use_len = len;
+        if( use_len > sizeof(int) )
+            use_len = sizeof(int);
+
+        rnd = rand();
+        memcpy( output, &rnd, use_len );
+        output += use_len;
+        len -= use_len;
+    }
+
+    return( 0 );
 }
 
 unsigned char buf[BUFSIZE];
diff --git a/programs/test/ssl_test.c b/programs/test/ssl_test.c
index 683963c..8bac4b2 100644
--- a/programs/test/ssl_test.c
+++ b/programs/test/ssl_test.c
@@ -257,7 +257,7 @@
 
     ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
 
-    ssl_set_rng( &ssl, havege_rand, &hs );
+    ssl_set_rng( &ssl, havege_random, &hs );
     ssl_set_dbg( &ssl, my_debug, opt );
     ssl_set_bio( &ssl, net_recv, &client_fd,
                        net_send, &client_fd );
diff --git a/programs/x509/cert_app.c b/programs/x509/cert_app.c
index 1350fc1..cde96af 100644
--- a/programs/x509/cert_app.c
+++ b/programs/x509/cert_app.c
@@ -250,7 +250,7 @@
         ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
         ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
 
-        ssl_set_rng( &ssl, havege_rand, &hs );
+        ssl_set_rng( &ssl, havege_random, &hs );
         ssl_set_dbg( &ssl, my_debug, stdout );
         ssl_set_bio( &ssl, net_recv, &server_fd,
                 net_send, &server_fd );