Run util/openssl-format-source -v -c .

Reviewed-by: Tim Hudson <tjh@openssl.org>

1 files changed, 1477 insertions, 1482 deletions

diff --git a/ssl/d1_srvr.c b/ssl/d1_srvr.c
index da4c21e06a..5b52e2c3e8 100644
--- a/ssl/d1_srvr.c
+++ b/ssl/d1_srvr.c
@@ -1,7 +1,7 @@
 /* ssl/d1_srvr.c */
-/* 
+/*
  * DTLS implementation written by Nagendra Modadugu
- * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.  
+ * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
  */
 /* ====================================================================
  * Copyright (c) 1999-2007 The OpenSSL Project.  All rights reserved.
@@ -11,7 +11,7 @@
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
+ *    notice, this list of conditions and the following disclaimer.
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
@@ -62,21 +62,21 @@
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
- * 
+ *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
+ *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -91,10 +91,10 @@
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
+ * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -106,7 +106,7 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- * 
+ *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
@@ -123,1624 +123,1619 @@
 #include <openssl/md5.h>
 #include <openssl/bn.h>
 #ifndef OPENSSL_NO_DH
-#include <openssl/dh.h>
+# include <openssl/dh.h>
 #endif
 
 static const SSL_METHOD *dtls1_get_server_method(int ver);
 static int dtls1_send_hello_verify_request(SSL *s);
 
 static const SSL_METHOD *dtls1_get_server_method(int ver)
-	{
-	if (ver == DTLS1_VERSION)
-		return(DTLSv1_server_method());
-	else
-		return(NULL);
-	}
+{
+    if (ver == DTLS1_VERSION)
+        return (DTLSv1_server_method());
+    else
+        return (NULL);
+}
 
 IMPLEMENT_dtls1_meth_func(DTLSv1_server_method,
-			dtls1_accept,
-			ssl_undefined_function,
-			dtls1_get_server_method)
+                          dtls1_accept,
+                          ssl_undefined_function, dtls1_get_server_method)
 
 int dtls1_accept(SSL *s)
-	{
-	BUF_MEM *buf;
-	unsigned long Time=(unsigned long)time(NULL);
-	void (*cb)(const SSL *ssl,int type,int val)=NULL;
-	unsigned long alg_k;
-	int ret= -1;
-	int new_state,state,skip=0;
-	int listen;
+{
+    BUF_MEM *buf;
+    unsigned long Time = (unsigned long)time(NULL);
+    void (*cb) (const SSL *ssl, int type, int val) = NULL;
+    unsigned long alg_k;
+    int ret = -1;
+    int new_state, state, skip = 0;
+    int listen;
 #ifndef OPENSSL_NO_SCTP
-	unsigned char sctpauthkey[64];
-	char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];
+    unsigned char sctpauthkey[64];
+    char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];
 #endif
 
-	RAND_add(&Time,sizeof(Time),0);
-	ERR_clear_error();
-	clear_sys_error();
+    RAND_add(&Time, sizeof(Time), 0);
+    ERR_clear_error();
+    clear_sys_error();
+
+    if (s->info_callback != NULL)
+        cb = s->info_callback;
+    else if (s->ctx->info_callback != NULL)
+        cb = s->ctx->info_callback;
 
-	if (s->info_callback != NULL)
-		cb=s->info_callback;
-	else if (s->ctx->info_callback != NULL)
-		cb=s->ctx->info_callback;
-	
-	listen = s->d1->listen;
+    listen = s->d1->listen;
 
-	/* init things to blank */
-	s->in_handshake++;
-	if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
+    /* init things to blank */
+    s->in_handshake++;
+    if (!SSL_in_init(s) || SSL_in_before(s))
+        SSL_clear(s);
 
-	s->d1->listen = listen;
+    s->d1->listen = listen;
 #ifndef OPENSSL_NO_SCTP
-	/* Notify SCTP BIO socket to enter handshake
-	 * mode and prevent stream identifier other
-	 * than 0. Will be ignored if no SCTP is used.
-	 */
-	BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);
+    /*
+     * Notify SCTP BIO socket to enter handshake mode and prevent stream
+     * identifier other than 0. Will be ignored if no SCTP is used.
+     */
+    BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE,
+             s->in_handshake, NULL);
 #endif
 
-	if (s->cert == NULL)
-		{
-		SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_NO_CERTIFICATE_SET);
-		return(-1);
-		}
-
+    if (s->cert == NULL) {
+        SSLerr(SSL_F_DTLS1_ACCEPT, SSL_R_NO_CERTIFICATE_SET);
+        return (-1);
+    }
 #ifndef OPENSSL_NO_HEARTBEATS
-	/* If we're awaiting a HeartbeatResponse, pretend we
-	 * already got and don't await it anymore, because
-	 * Heartbeats don't make sense during handshakes anyway.
-	 */
-	if (s->tlsext_hb_pending)
-		{
-		dtls1_stop_timer(s);
-		s->tlsext_hb_pending = 0;
-		s->tlsext_hb_seq++;
-		}
+    /*
+     * If we're awaiting a HeartbeatResponse, pretend we already got and
+     * don't await it anymore, because Heartbeats don't make sense during
+     * handshakes anyway.
+     */
+    if (s->tlsext_hb_pending) {
+        dtls1_stop_timer(s);
+        s->tlsext_hb_pending = 0;
+        s->tlsext_hb_seq++;
+    }
 #endif
 
-	for (;;)
-		{
-		state=s->state;
-
-		switch (s->state)
-			{
-		case SSL_ST_RENEGOTIATE:
-			s->renegotiate=1;
-			/* s->state=SSL_ST_ACCEPT; */
-
-		case SSL_ST_BEFORE:
-		case SSL_ST_ACCEPT:
-		case SSL_ST_BEFORE|SSL_ST_ACCEPT:
-		case SSL_ST_OK|SSL_ST_ACCEPT:
-
-			s->server=1;
-			if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
-
-			if ((s->version & 0xff00) != (DTLS1_VERSION & 0xff00))
-				{
-				SSLerr(SSL_F_DTLS1_ACCEPT, ERR_R_INTERNAL_ERROR);
-				return -1;
-				}
-			s->type=SSL_ST_ACCEPT;
-
-			if (s->init_buf == NULL)
-				{
-				if ((buf=BUF_MEM_new()) == NULL)
-					{
-					ret= -1;
-					goto end;
-					}
-				if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
-					{
-					BUF_MEM_free(buf);
-					ret= -1;
-					goto end;
-					}
-				s->init_buf=buf;
-				}
-
-			if (!ssl3_setup_buffers(s))
-				{
-				ret= -1;
-				goto end;
-				}
-
-			s->init_num=0;
-			s->d1->change_cipher_spec_ok = 0;
-			/* Should have been reset by ssl3_get_finished, too. */
-			s->s3->change_cipher_spec = 0;
-
-			if (s->state != SSL_ST_RENEGOTIATE)
-				{
-				/* Ok, we now need to push on a buffering BIO so that
-				 * the output is sent in a way that TCP likes :-)
-				 * ...but not with SCTP :-)
-				 */
+    for (;;) {
+        state = s->state;
+
+        switch (s->state) {
+        case SSL_ST_RENEGOTIATE:
+            s->renegotiate = 1;
+            /* s->state=SSL_ST_ACCEPT; */
+
+        case SSL_ST_BEFORE:
+        case SSL_ST_ACCEPT:
+        case SSL_ST_BEFORE | SSL_ST_ACCEPT:
+        case SSL_ST_OK | SSL_ST_ACCEPT:
+
+            s->server = 1;
+            if (cb != NULL)
+                cb(s, SSL_CB_HANDSHAKE_START, 1);
+
+            if ((s->version & 0xff00) != (DTLS1_VERSION & 0xff00)) {
+                SSLerr(SSL_F_DTLS1_ACCEPT, ERR_R_INTERNAL_ERROR);
+                return -1;
+            }
+            s->type = SSL_ST_ACCEPT;
+
+            if (s->init_buf == NULL) {
+                if ((buf = BUF_MEM_new()) == NULL) {
+                    ret = -1;
+                    goto end;
+                }
+                if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) {
+                    BUF_MEM_free(buf);
+                    ret = -1;
+                    goto end;
+                }
+                s->init_buf = buf;
+            }
+
+            if (!ssl3_setup_buffers(s)) {
+                ret = -1;
+                goto end;
+            }
+
+            s->init_num = 0;
+            s->d1->change_cipher_spec_ok = 0;
+            /*
+             * Should have been reset by ssl3_get_finished, too.
+             */
+            s->s3->change_cipher_spec = 0;
+
+            if (s->state != SSL_ST_RENEGOTIATE) {
+                /*
+                 * Ok, we now need to push on a buffering BIO so that the
+                 * output is sent in a way that TCP likes :-) ...but not with
+                 * SCTP :-)
+                 */
 #ifndef OPENSSL_NO_SCTP
-				if (!BIO_dgram_is_sctp(SSL_get_wbio(s)))
+                if (!BIO_dgram_is_sctp(SSL_get_wbio(s)))
 #endif
-					if (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; }
-
-				ssl3_init_finished_mac(s);
-				s->state=SSL3_ST_SR_CLNT_HELLO_A;
-				s->ctx->stats.sess_accept++;
-				}
-			else
-				{
-				/* s->state == SSL_ST_RENEGOTIATE,
-				 * we will just send a HelloRequest */
-				s->ctx->stats.sess_accept_renegotiate++;
-				s->state=SSL3_ST_SW_HELLO_REQ_A;
-				}
-
-			break;
-
-		case SSL3_ST_SW_HELLO_REQ_A:
-		case SSL3_ST_SW_HELLO_REQ_B:
-
-			s->shutdown=0;
-			dtls1_clear_record_buffer(s);
-			dtls1_start_timer(s);
-			ret=dtls1_send_hello_request(s);
-			if (ret <= 0) goto end;
-			s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A;
-			s->state=SSL3_ST_SW_FLUSH;
-			s->init_num=0;
-
-			ssl3_init_finished_mac(s);
-			break;
-
-		case SSL3_ST_SW_HELLO_REQ_C:
-			s->state=SSL_ST_OK;
-			break;
-
-		case SSL3_ST_SR_CLNT_HELLO_A:
-		case SSL3_ST_SR_CLNT_HELLO_B:
-		case SSL3_ST_SR_CLNT_HELLO_C:
-
-			s->shutdown=0;
-			ret=ssl3_get_client_hello(s);
-			if (ret <= 0) goto end;
-			dtls1_stop_timer(s);
-
-			if (ret == 1 && (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE))
-				s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A;
-			else
-				s->state = SSL3_ST_SW_SRVR_HELLO_A;
-
-			s->init_num=0;
-
-			/* Reflect ClientHello sequence to remain stateless while listening */
-			if (listen)
-				{
-				memcpy(s->s3->write_sequence, s->s3->read_sequence, sizeof(s->s3->write_sequence));
-				}
-
-			/* If we're just listening, stop here */
-			if (listen && s->state == SSL3_ST_SW_SRVR_HELLO_A)
-				{
-				ret = 2;
-				s->d1->listen = 0;
-				/* Set expected sequence numbers
-				 * to continue the handshake.
-				 */
-				s->d1->handshake_read_seq = 2;
-				s->d1->handshake_write_seq = 1;
-				s->d1->next_handshake_write_seq = 1;
-				goto end;
-				}
-			
-			break;
-			
-		case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A:
-		case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B:
-
-			ret = dtls1_send_hello_verify_request(s);
-			if ( ret <= 0) goto end;
-			s->state=SSL3_ST_SW_FLUSH;
-			s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A;
-
-			/* HelloVerifyRequest resets Finished MAC */
-			if (s->version != DTLS1_BAD_VER)
-				ssl3_init_finished_mac(s);
-			break;
-			
+                    if (!ssl_init_wbio_buffer(s, 1)) {
+                        ret = -1;
+                        goto end;
+                    }
+
+                ssl3_init_finished_mac(s);
+                s->state = SSL3_ST_SR_CLNT_HELLO_A;
+                s->ctx->stats.sess_accept++;
+            } else {
+                /*
+                 * s->state == SSL_ST_RENEGOTIATE, we will just send a
+                 * HelloRequest
+                 */
+                s->ctx->stats.sess_accept_renegotiate++;
+                s->state = SSL3_ST_SW_HELLO_REQ_A;
+            }
+
+            break;
+
+        case SSL3_ST_SW_HELLO_REQ_A:
+        case SSL3_ST_SW_HELLO_REQ_B:
+
+            s->shutdown = 0;
+            dtls1_clear_record_buffer(s);
+            dtls1_start_timer(s);
+            ret = dtls1_send_hello_request(s);
+            if (ret <= 0)
+                goto end;
+            s->s3->tmp.next_state = SSL3_ST_SR_CLNT_HELLO_A;
+            s->state = SSL3_ST_SW_FLUSH;
+            s->init_num = 0;
+
+            ssl3_init_finished_mac(s);
+            break;
+
+        case SSL3_ST_SW_HELLO_REQ_C:
+            s->state = SSL_ST_OK;
+            break;
+
+        case SSL3_ST_SR_CLNT_HELLO_A:
+        case SSL3_ST_SR_CLNT_HELLO_B:
+        case SSL3_ST_SR_CLNT_HELLO_C:
+
+            s->shutdown = 0;
+            ret = ssl3_get_client_hello(s);
+            if (ret <= 0)
+                goto end;
+            dtls1_stop_timer(s);
+
+            if (ret == 1 && (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE))
+                s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A;
+            else
+                s->state = SSL3_ST_SW_SRVR_HELLO_A;
+
+            s->init_num = 0;
+
+            /*
+             * Reflect ClientHello sequence to remain stateless while
+             * listening
+             */
+            if (listen) {
+                memcpy(s->s3->write_sequence, s->s3->read_sequence,
+                       sizeof(s->s3->write_sequence));
+            }
+
+            /* If we're just listening, stop here */
+            if (listen && s->state == SSL3_ST_SW_SRVR_HELLO_A) {
+                ret = 2;
+                s->d1->listen = 0;
+                /*
+                 * Set expected sequence numbers to continue the handshake.
+                 */
+                s->d1->handshake_read_seq = 2;
+                s->d1->handshake_write_seq = 1;
+                s->d1->next_handshake_write_seq = 1;
+                goto end;
+            }
+
+            break;
+
+        case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A:
+        case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B:
+
+            ret = dtls1_send_hello_verify_request(s);
+            if (ret <= 0)
+                goto end;
+            s->state = SSL3_ST_SW_FLUSH;
+            s->s3->tmp.next_state = SSL3_ST_SR_CLNT_HELLO_A;
+
+            /* HelloVerifyRequest resets Finished MAC */
+            if (s->version != DTLS1_BAD_VER)
+                ssl3_init_finished_mac(s);
+            break;
+
 #ifndef OPENSSL_NO_SCTP
-		case DTLS1_SCTP_ST_SR_READ_SOCK:
-			
-			if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s)))		
-				{
-				s->s3->in_read_app_data=2;
-				s->rwstate=SSL_READING;
-				BIO_clear_retry_flags(SSL_get_rbio(s));
-				BIO_set_retry_read(SSL_get_rbio(s));
-				ret = -1;
-				goto end;
-				}
-			
-			s->state=SSL3_ST_SR_FINISHED_A;
-			break;
-			
-		case DTLS1_SCTP_ST_SW_WRITE_SOCK:
-			ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s));
-			if (ret < 0) goto end;
-			
-			if (ret == 0)
-				{
-				if (s->d1->next_state != SSL_ST_OK)
-					{
-					s->s3->in_read_app_data=2;
-					s->rwstate=SSL_READING;
-					BIO_clear_retry_flags(SSL_get_rbio(s));
-					BIO_set_retry_read(SSL_get_rbio(s));
-					ret = -1;
-					goto end;
-					}
-				}
-
-			s->state=s->d1->next_state;
-			break;
+        case DTLS1_SCTP_ST_SR_READ_SOCK:
+
+            if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s))) {
+                s->s3->in_read_app_data = 2;
+                s->rwstate = SSL_READING;
+                BIO_clear_retry_flags(SSL_get_rbio(s));
+                BIO_set_retry_read(SSL_get_rbio(s));
+                ret = -1;
+                goto end;
+            }
+
+            s->state = SSL3_ST_SR_FINISHED_A;
+            break;
+
+        case DTLS1_SCTP_ST_SW_WRITE_SOCK:
+            ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s));
+            if (ret < 0)
+                goto end;
+
+            if (ret == 0) {
+                if (s->d1->next_state != SSL_ST_OK) {
+                    s->s3->in_read_app_data = 2;
+                    s->rwstate = SSL_READING;
+                    BIO_clear_retry_flags(SSL_get_rbio(s));
+                    BIO_set_retry_read(SSL_get_rbio(s));
+                    ret = -1;
+                    goto end;
+                }
+            }
+
+            s->state = s->d1->next_state;
+            break;
 #endif
 
-		case SSL3_ST_SW_SRVR_HELLO_A:
-		case SSL3_ST_SW_SRVR_HELLO_B:
-			s->renegotiate = 2;
-			dtls1_start_timer(s);
-			ret=dtls1_send_server_hello(s);
-			if (ret <= 0) goto end;
+        case SSL3_ST_SW_SRVR_HELLO_A:
+        case SSL3_ST_SW_SRVR_HELLO_B:
+            s->renegotiate = 2;
+            dtls1_start_timer(s);
+            ret = dtls1_send_server_hello(s);
+            if (ret <= 0)
+                goto end;
 
-			if (s->hit)
-				{
+            if (s->hit) {
 #ifndef OPENSSL_NO_SCTP
-				/* Add new shared key for SCTP-Auth,
-				 * will be ignored if no SCTP used.
-				 */
-				snprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
-				         DTLS1_SCTP_AUTH_LABEL);
-
-				SSL_export_keying_material(s, sctpauthkey,
-				                           sizeof(sctpauthkey), labelbuffer,
-				                           sizeof(labelbuffer), NULL, 0, 0);
-				
-				BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
+                /*
+                 * Add new shared key for SCTP-Auth, will be ignored if no
+                 * SCTP used.
+                 */
+                snprintf((char *)labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
+                         DTLS1_SCTP_AUTH_LABEL);
+
+                SSL_export_keying_material(s, sctpauthkey,
+                                           sizeof(sctpauthkey), labelbuffer,
+                                           sizeof(labelbuffer), NULL, 0, 0);
+
+                BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
                          sizeof(sctpauthkey), sctpauthkey);
 #endif
 #ifndef OPENSSL_NO_TLSEXT
-				if (s->tlsext_ticket_expected)
-					s->state=SSL3_ST_SW_SESSION_TICKET_A;
-				else
-					s->state=SSL3_ST_SW_CHANGE_A;
+                if (s->tlsext_ticket_expected)
+                    s->state = SSL3_ST_SW_SESSION_TICKET_A;
+                else
+                    s->state = SSL3_ST_SW_CHANGE_A;
 #else
-				s->state=SSL3_ST_SW_CHANGE_A;
+                s->state = SSL3_ST_SW_CHANGE_A;
 #endif
-				}
-			else
-				s->state=SSL3_ST_SW_CERT_A;
-			s->init_num=0;
-			break;
-
-		case SSL3_ST_SW_CERT_A:
-		case SSL3_ST_SW_CERT_B:
-			/* Check if it is anon DH or normal PSK */
-			if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)
-				&& !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))
-				{
-				dtls1_start_timer(s);
-				ret=dtls1_send_server_certificate(s);
-				if (ret <= 0) goto end;
+            } else
+                s->state = SSL3_ST_SW_CERT_A;
+            s->init_num = 0;
+            break;
+
+        case SSL3_ST_SW_CERT_A:
+        case SSL3_ST_SW_CERT_B:
+            /* Check if it is anon DH or normal PSK */
+            if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)
+                && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) {
+                dtls1_start_timer(s);
+                ret = dtls1_send_server_certificate(s);
+                if (ret <= 0)
+                    goto end;
 #ifndef OPENSSL_NO_TLSEXT
-				if (s->tlsext_status_expected)
-					s->state=SSL3_ST_SW_CERT_STATUS_A;
-				else
-					s->state=SSL3_ST_SW_KEY_EXCH_A;
-				}
-			else
-				{
-				skip = 1;
-				s->state=SSL3_ST_SW_KEY_EXCH_A;
-				}
+                if (s->tlsext_status_expected)
+                    s->state = SSL3_ST_SW_CERT_STATUS_A;
+                else
+                    s->state = SSL3_ST_SW_KEY_EXCH_A;
+            } else {
+                skip = 1;
+                s->state = SSL3_ST_SW_KEY_EXCH_A;
+            }
 #else
-				}
-			else
-				skip=1;
+            } else
+                skip = 1;
 
-			s->state=SSL3_ST_SW_KEY_EXCH_A;
+            s->state = SSL3_ST_SW_KEY_EXCH_A;
 #endif
-			s->init_num=0;
-			break;
-
-		case SSL3_ST_SW_KEY_EXCH_A:
-		case SSL3_ST_SW_KEY_EXCH_B:
-			alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
-
-			/*
-			 * clear this, it may get reset by
-			 * send_server_key_exchange
-			 */
-			s->s3->tmp.use_rsa_tmp=0;
-
-			/* only send if a DH key exchange or
-			 * RSA but we have a sign only certificate */
-			if (0
-			/* PSK: send ServerKeyExchange if PSK identity
-			 * hint if provided */
+            s->init_num = 0;
+            break;
+
+        case SSL3_ST_SW_KEY_EXCH_A:
+        case SSL3_ST_SW_KEY_EXCH_B:
+            alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
+
+            /*
+             * clear this, it may get reset by
+             * send_server_key_exchange
+             */
+            s->s3->tmp.use_rsa_tmp = 0;
+
+            /*
+             * only send if a DH key exchange or RSA but we have a sign only
+             * certificate
+             */
+            if (0
+                /*
+                 * PSK: send ServerKeyExchange if PSK identity hint if
+                 * provided
+                 */
 #ifndef OPENSSL_NO_PSK
-			    || ((alg_k & SSL_kPSK) && s->ctx->psk_identity_hint)
+                || ((alg_k & SSL_kPSK) && s->ctx->psk_identity_hint)
 #endif
-			    || (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
-			    || (alg_k & SSL_kEECDH)
-			    || ((alg_k & SSL_kRSA)
-				&& (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL
-				    || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher)
-					&& EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)
-					)
-				    )
-				)
-			    )
-				{
-				dtls1_start_timer(s);
-				ret=dtls1_send_server_key_exchange(s);
-				if (ret <= 0) goto end;
-				}
-			else
-				skip=1;
-
-			s->state=SSL3_ST_SW_CERT_REQ_A;
-			s->init_num=0;
-			break;
-
-		case SSL3_ST_SW_CERT_REQ_A:
-		case SSL3_ST_SW_CERT_REQ_B:
-			if (/* don't request cert unless asked for it: */
-				!(s->verify_mode & SSL_VERIFY_PEER) ||
-				/* if SSL_VERIFY_CLIENT_ONCE is set,
-				 * don't request cert during re-negotiation: */
-				((s->session->peer != NULL) &&
-				 (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) ||
-				/* never request cert in anonymous ciphersuites
-				 * (see section "Certificate request" in SSL 3 drafts
-				 * and in RFC 2246): */
-				((s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) &&
-				 /* ... except when the application insists on verification
-				  * (against the specs, but s3_clnt.c accepts this for SSL 3) */
-				 !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) ||
-				 /* never request cert in Kerberos ciphersuites */
-				(s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5)
-				/* With normal PSK Certificates and
-				 * Certificate Requests are omitted */
-				|| (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))
-				{
-				/* no cert request */
-				skip=1;
-				s->s3->tmp.cert_request=0;
-				s->state=SSL3_ST_SW_SRVR_DONE_A;
+                || (alg_k & (SSL_kEDH | SSL_kDHr | SSL_kDHd))
+                || (alg_k & SSL_kEECDH)
+                || ((alg_k & SSL_kRSA)
+                    && (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL
+                        || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher)
+                            && EVP_PKEY_size(s->cert->
+                                             pkeys
+                                             [SSL_PKEY_RSA_ENC].privatekey) *
+                            8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)
+                        )
+                    )
+                )
+                ) {
+                dtls1_start_timer(s);
+                ret = dtls1_send_server_key_exchange(s);
+                if (ret <= 0)
+                    goto end;
+            } else
+                skip = 1;
+
+            s->state = SSL3_ST_SW_CERT_REQ_A;
+            s->init_num = 0;
+            break;
+
+        case SSL3_ST_SW_CERT_REQ_A:
+        case SSL3_ST_SW_CERT_REQ_B:
+            if (                /* don't request cert unless asked for it: */
+                   !(s->verify_mode & SSL_VERIFY_PEER) ||
+                   /*
+                    * if SSL_VERIFY_CLIENT_ONCE is set, don't request cert
+                    * during re-negotiation:
+                    */
+                   ((s->session->peer != NULL) &&
+                    (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) ||
+                   /*
+                    * never request cert in anonymous ciphersuites (see
+                    * section "Certificate request" in SSL 3 drafts and in
+                    * RFC 2246):
+                    */
+                   ((s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) &&
+                    /*
+                     * ... except when the application insists on
+                     * verification (against the specs, but s3_clnt.c accepts
+                     * this for SSL 3)
+                     */
+                    !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) ||
+                   /*
+                    * never request cert in Kerberos ciphersuites
+                    */
+                   (s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5)
+                   /*
+                    * With normal PSK Certificates and Certificate Requests
+                    * are omitted
+                    */
+                   || (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) {
+                /* no cert request */
+                skip = 1;
+                s->s3->tmp.cert_request = 0;
+                s->state = SSL3_ST_SW_SRVR_DONE_A;
 #ifndef OPENSSL_NO_SCTP
-				if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
-					{
-					s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;
-					s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
-					}
+                if (BIO_dgram_is_sctp(SSL_get_wbio(s))) {
+                    s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;
+                    s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
+                }
 #endif
-				}
-			else
-				{
-				s->s3->tmp.cert_request=1;
-				dtls1_start_timer(s);
-				ret=dtls1_send_certificate_request(s);
-				if (ret <= 0) goto end;
+            } else {
+                s->s3->tmp.cert_request = 1;
+                dtls1_start_timer(s);
+                ret = dtls1_send_certificate_request(s);
+                if (ret <= 0)
+                    goto end;
 #ifndef NETSCAPE_HANG_BUG
-				s->state=SSL3_ST_SW_SRVR_DONE_A;
-#ifndef OPENSSL_NO_SCTP
-				if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
-					{
-					s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;
-					s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
-					}
-#endif
+                s->state = SSL3_ST_SW_SRVR_DONE_A;
+# ifndef OPENSSL_NO_SCTP
+                if (BIO_dgram_is_sctp(SSL_get_wbio(s))) {
+                    s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;
+                    s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
+                }
+# endif
 #else
-				s->state=SSL3_ST_SW_FLUSH;
-				s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;
-#ifndef OPENSSL_NO_SCTP
-				if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
-					{
-					s->d1->next_state = s->s3->tmp.next_state;
-					s->s3->tmp.next_state=DTLS1_SCTP_ST_SW_WRITE_SOCK;
-					}
-#endif
+                s->state = SSL3_ST_SW_FLUSH;
+                s->s3->tmp.next_state = SSL3_ST_SR_CERT_A;
+# ifndef OPENSSL_NO_SCTP
+                if (BIO_dgram_is_sctp(SSL_get_wbio(s))) {
+                    s->d1->next_state = s->s3->tmp.next_state;
+                    s->s3->tmp.next_state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
+                }
+# endif
 #endif
-				s->init_num=0;
-				}
-			break;
-
-		case SSL3_ST_SW_SRVR_DONE_A:
-		case SSL3_ST_SW_SRVR_DONE_B:
-			dtls1_start_timer(s);
-			ret=dtls1_send_server_done(s);
-			if (ret <= 0) goto end;
-			s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;
-			s->state=SSL3_ST_SW_FLUSH;
-			s->init_num=0;
-			break;
-		
-		case SSL3_ST_SW_FLUSH:
-			s->rwstate=SSL_WRITING;
-			if (BIO_flush(s->wbio) <= 0)
-				{
-				/* If the write error was fatal, stop trying */
-				if (!BIO_should_retry(s->wbio))
-					{
-					s->rwstate=SSL_NOTHING;
-					s->state=s->s3->tmp.next_state;
-					}
-				
-				ret= -1;
-				goto end;
-				}
-			s->rwstate=SSL_NOTHING;
-			s->state=s->s3->tmp.next_state;
-			break;
-
-		case SSL3_ST_SR_CERT_A:
-		case SSL3_ST_SR_CERT_B:
-			/* Check for second client hello (MS SGC) */
-			ret = ssl3_check_client_hello(s);
-			if (ret <= 0)
-				goto end;
-			if (ret == 2)
-				{
-				dtls1_stop_timer(s);
-				s->state = SSL3_ST_SR_CLNT_HELLO_C;
-				}
-			else {
-				if (s->s3->tmp.cert_request)
-					{
-					ret=ssl3_get_client_certificate(s);
-					if (ret <= 0) goto end;
-					}
-				s->init_num=0;
-				s->state=SSL3_ST_SR_KEY_EXCH_A;
-			}
-			break;
-
-		case SSL3_ST_SR_KEY_EXCH_A:
-		case SSL3_ST_SR_KEY_EXCH_B:
-			ret=ssl3_get_client_key_exchange(s);
-			if (ret <= 0) goto end;
+                s->init_num = 0;
+            }
+            break;
+
+        case SSL3_ST_SW_SRVR_DONE_A:
+        case SSL3_ST_SW_SRVR_DONE_B:
+            dtls1_start_timer(s);
+            ret = dtls1_send_server_done(s);
+            if (ret <= 0)
+                goto end;
+            s->s3->tmp.next_state = SSL3_ST_SR_CERT_A;
+            s->state = SSL3_ST_SW_FLUSH;
+            s->init_num = 0;
+            break;
+
+        case SSL3_ST_SW_FLUSH:
+            s->rwstate = SSL_WRITING;
+            if (BIO_flush(s->wbio) <= 0) {
+                /*
+                 * If the write error was fatal, stop trying
+                 */
+                if (!BIO_should_retry(s->wbio)) {
+                    s->rwstate = SSL_NOTHING;
+                    s->state = s->s3->tmp.next_state;
+                }
+
+                ret = -1;
+                goto end;
+            }
+            s->rwstate = SSL_NOTHING;
+            s->state = s->s3->tmp.next_state;
+            break;
+
+        case SSL3_ST_SR_CERT_A:
+        case SSL3_ST_SR_CERT_B:
+            /* Check for second client hello (MS SGC) */
+            ret = ssl3_check_client_hello(s);
+            if (ret <= 0)
+                goto end;
+            if (ret == 2) {
+                dtls1_stop_timer(s);
+                s->state = SSL3_ST_SR_CLNT_HELLO_C;
+            } else {
+                if (s->s3->tmp.cert_request) {
+                    ret = ssl3_get_client_certificate(s);
+                    if (ret <= 0)
+                        goto end;
+                }
+                s->init_num = 0;
+                s->state = SSL3_ST_SR_KEY_EXCH_A;
+            }
+            break;
+
+        case SSL3_ST_SR_KEY_EXCH_A:
+        case SSL3_ST_SR_KEY_EXCH_B:
+            ret = ssl3_get_client_key_exchange(s);
+            if (ret <= 0)
+                goto end;
 #ifndef OPENSSL_NO_SCTP
-			/* Add new shared key for SCTP-Auth,
-			 * will be ignored if no SCTP used.
-			 */
-			snprintf((char *) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
-			         DTLS1_SCTP_AUTH_LABEL);
-
-			SSL_export_keying_material(s, sctpauthkey,
-			                           sizeof(sctpauthkey), labelbuffer,
-			                           sizeof(labelbuffer), NULL, 0, 0);
-
-			BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
-			         sizeof(sctpauthkey), sctpauthkey);
+            /*
+             * Add new shared key for SCTP-Auth, will be ignored if no SCTP
+             * used.
+             */
+            snprintf((char *)labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
+                     DTLS1_SCTP_AUTH_LABEL);
+
+            SSL_export_keying_material(s, sctpauthkey,
+                                       sizeof(sctpauthkey), labelbuffer,
+                                       sizeof(labelbuffer), NULL, 0, 0);
+
+            BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
+                     sizeof(sctpauthkey), sctpauthkey);
 #endif
 
-			s->state=SSL3_ST_SR_CERT_VRFY_A;
-			s->init_num=0;
-
-			if (ret == 2)
-				{