Upgraded to openssl-1.0.2

1 files changed, 246 insertions, 255 deletions

diff --git a/openssl/demos/state_machine/state_machine.c b/openssl/demos/state_machine/state_machine.c
index fef3f3e3d..2ec196aff 100644
--- a/openssl/demos/state_machine/state_machine.c
+++ b/openssl/demos/state_machine/state_machine.c
@@ -6,7 +6,7 @@
  * 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
@@ -83,334 +83,325 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 
-/* die_unless is intended to work like assert, except that it happens
-   always, even if NDEBUG is defined. Use assert as a stopgap. */
+/*
+ * die_unless is intended to work like assert, except that it happens always,
+ * even if NDEBUG is defined. Use assert as a stopgap.
+ */
 
-#define die_unless(x)	assert(x)
+#define die_unless(x)   assert(x)
 
-typedef struct
-    {
+typedef struct {
     SSL_CTX *pCtx;
     BIO *pbioRead;
     BIO *pbioWrite;
     SSL *pSSL;
-    } SSLStateMachine;
+} SSLStateMachine;
 
-void SSLStateMachine_print_error(SSLStateMachine *pMachine,const char *szErr)
-    {
+void SSLStateMachine_print_error(SSLStateMachine * pMachine,
+                                 const char *szErr)
+{
     unsigned long l;
 
-    fprintf(stderr,"%s\n",szErr);
-    while((l=ERR_get_error()))
-	{
-	char buf[1024];
+    fprintf(stderr, "%s\n", szErr);
+    while ((l = ERR_get_error())) {
+        char buf[1024];
 
-	ERR_error_string_n(l,buf,sizeof buf);
-	fprintf(stderr,"Error %lx: %s\n",l,buf);
-	}
+        ERR_error_string_n(l, buf, sizeof buf);
+        fprintf(stderr, "Error %lx: %s\n", l, buf);
     }
+}
 
 SSLStateMachine *SSLStateMachine_new(const char *szCertificateFile,
-				     const char *szKeyFile)
-    {
-    SSLStateMachine *pMachine=malloc(sizeof *pMachine);
+                                     const char *szKeyFile)
+{
+    SSLStateMachine *pMachine = malloc(sizeof *pMachine);
     int n;
 
     die_unless(pMachine);
 
-    pMachine->pCtx=SSL_CTX_new(SSLv23_server_method());
+    pMachine->pCtx = SSL_CTX_new(SSLv23_server_method());
     die_unless(pMachine->pCtx);
 
-    n=SSL_CTX_use_certificate_file(pMachine->pCtx,szCertificateFile,
-				   SSL_FILETYPE_PEM);
+    n = SSL_CTX_use_certificate_file(pMachine->pCtx, szCertificateFile,
+                                     SSL_FILETYPE_PEM);
     die_unless(n > 0);
 
-    n=SSL_CTX_use_PrivateKey_file(pMachine->pCtx,szKeyFile,SSL_FILETYPE_PEM);
+    n = SSL_CTX_use_PrivateKey_file(pMachine->pCtx, szKeyFile,
+                                    SSL_FILETYPE_PEM);
     die_unless(n > 0);
 
-    pMachine->pSSL=SSL_new(pMachine->pCtx);
+    pMachine->pSSL = SSL_new(pMachine->pCtx);
     die_unless(pMachine->pSSL);
 
-    pMachine->pbioRead=BIO_new(BIO_s_mem());
+    pMachine->pbioRead = BIO_new(BIO_s_mem());
 
-    pMachine->pbioWrite=BIO_new(BIO_s_mem());
+    pMachine->pbioWrite = BIO_new(BIO_s_mem());
 
-    SSL_set_bio(pMachine->pSSL,pMachine->pbioRead,pMachine->pbioWrite);
+    SSL_set_bio(pMachine->pSSL, pMachine->pbioRead, pMachine->pbioWrite);
 
     SSL_set_accept_state(pMachine->pSSL);
 
     return pMachine;
-    }
-
-void SSLStateMachine_read_inject(SSLStateMachine *pMachine,
-				 const unsigned char *aucBuf,int nBuf)
-    {
-    int n=BIO_write(pMachine->pbioRead,aucBuf,nBuf);
-    /* If it turns out this assert fails, then buffer the data here
-     * and just feed it in in churn instead. Seems to me that it
-     * should be guaranteed to succeed, though.
+}
+
+void SSLStateMachine_read_inject(SSLStateMachine * pMachine,
+                                 const unsigned char *aucBuf, int nBuf)
+{
+    int n = BIO_write(pMachine->pbioRead, aucBuf, nBuf);
+    /*
+     * If it turns out this assert fails, then buffer the data here and just
+     * feed it in in churn instead. Seems to me that it should be guaranteed
+     * to succeed, though.
      */
     assert(n == nBuf);
-    fprintf(stderr,"%d bytes of encrypted data fed to state machine\n",n);
-    }
+    fprintf(stderr, "%d bytes of encrypted data fed to state machine\n", n);
+}
 
-int SSLStateMachine_read_extract(SSLStateMachine *pMachine,
-				 unsigned char *aucBuf,int nBuf)
-    {
+int SSLStateMachine_read_extract(SSLStateMachine * pMachine,
+                                 unsigned char *aucBuf, int nBuf)
+{
     int n;
 
-    if(!SSL_is_init_finished(pMachine->pSSL))
-	{
-	fprintf(stderr,"Doing SSL_accept\n");
-	n=SSL_accept(pMachine->pSSL);
-	if(n == 0)
-	    fprintf(stderr,"SSL_accept returned zero\n");
-	if(n < 0)
-	    {
-	    int err;
-
-	    if((err=SSL_get_error(pMachine->pSSL,n)) == SSL_ERROR_WANT_READ)
-		{
-		fprintf(stderr,"SSL_accept wants more data\n");
-		return 0;
-		}
-
-	    SSLStateMachine_print_error(pMachine,"SSL_accept error");
-	    exit(7);
-	    }
-	return 0;
-	}
-
-    n=SSL_read(pMachine->pSSL,aucBuf,nBuf);
-    if(n < 0)
-	{
-	int err=SSL_get_error(pMachine->pSSL,n);
-
-	if(err == SSL_ERROR_WANT_READ)
-	    {
-	    fprintf(stderr,"SSL_read wants more data\n");
-	    return 0;
-	    }
-
-	SSLStateMachine_print_error(pMachine,"SSL_read error");
-	exit(8);
-	}
-
-    fprintf(stderr,"%d bytes of decrypted data read from state machine\n",n);
-    return n;
+    if (!SSL_is_init_finished(pMachine->pSSL)) {
+        fprintf(stderr, "Doing SSL_accept\n");
+        n = SSL_accept(pMachine->pSSL);
+        if (n == 0)
+            fprintf(stderr, "SSL_accept returned zero\n");
+        if (n < 0) {
+            int err;
+
+            if ((err =
+                 SSL_get_error(pMachine->pSSL, n)) == SSL_ERROR_WANT_READ) {
+                fprintf(stderr, "SSL_accept wants more data\n");
+                return 0;
+            }
+
+            SSLStateMachine_print_error(pMachine, "SSL_accept error");
+            exit(7);
+        }
+        return 0;
     }
 
-int SSLStateMachine_write_can_extract(SSLStateMachine *pMachine)
-    {
-    int n=BIO_pending(pMachine->pbioWrite);
-    if(n)
-	fprintf(stderr,"There is encrypted data available to write\n");
+    n = SSL_read(pMachine->pSSL, aucBuf, nBuf);
+    if (n < 0) {
+        int err = SSL_get_error(pMachine->pSSL, n);
+
+        if (err == SSL_ERROR_WANT_READ) {
+            fprintf(stderr, "SSL_read wants more data\n");
+            return 0;
+        }
+
+        SSLStateMachine_print_error(pMachine, "SSL_read error");
+        exit(8);
+    }
+
+    fprintf(stderr, "%d bytes of decrypted data read from state machine\n",
+            n);
+    return n;
+}
+
+int SSLStateMachine_write_can_extract(SSLStateMachine * pMachine)
+{
+    int n = BIO_pending(pMachine->pbioWrite);
+    if (n)
+        fprintf(stderr, "There is encrypted data available to write\n");
     else
-	fprintf(stderr,"There is no encrypted data available to write\n");
+        fprintf(stderr, "There is no encrypted data available to write\n");
 
     return n;
-    }
+}
 
-int SSLStateMachine_write_extract(SSLStateMachine *pMachine,
-				  unsigned char *aucBuf,int nBuf)
-    {
+int SSLStateMachine_write_extract(SSLStateMachine * pMachine,
+                                  unsigned char *aucBuf, int nBuf)
+{
     int n;
 
-    n=BIO_read(pMachine->pbioWrite,aucBuf,nBuf);
-    fprintf(stderr,"%d bytes of encrypted data read from state machine\n",n);
+    n = BIO_read(pMachine->pbioWrite, aucBuf, nBuf);
+    fprintf(stderr, "%d bytes of encrypted data read from state machine\n",
+            n);
     return n;
-    }
-
-void SSLStateMachine_write_inject(SSLStateMachine *pMachine,
-				  const unsigned char *aucBuf,int nBuf)
-    {
-    int n=SSL_write(pMachine->pSSL,aucBuf,nBuf);
-    /* If it turns out this assert fails, then buffer the data here
-     * and just feed it in in churn instead. Seems to me that it
-     * should be guaranteed to succeed, though.
+}
+
+void SSLStateMachine_write_inject(SSLStateMachine * pMachine,
+                                  const unsigned char *aucBuf, int nBuf)
+{
+    int n = SSL_write(pMachine->pSSL, aucBuf, nBuf);
+    /*
+     * If it turns out this assert fails, then buffer the data here and just
+     * feed it in in churn instead. Seems to me that it should be guaranteed
+     * to succeed, though.
      */
     assert(n == nBuf);
-    fprintf(stderr,"%d bytes of unencrypted data fed to state machine\n",n);
-    }
+    fprintf(stderr, "%d bytes of unencrypted data fed to state machine\n", n);
+}
 
 int OpenSocket(int nPort)
-    {
+{
     int nSocket;
     struct sockaddr_in saServer;
     struct sockaddr_in saClient;
-    int one=1;
+    int one = 1;
     int nSize;
     int nFD;
     int nLen;
 
-    nSocket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
-    if(nSocket < 0)
-	{
-	perror("socket");
-	exit(1);
-	}
+    nSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+    if (nSocket < 0) {
+        perror("socket");
+        exit(1);
+    }
 
-    if(setsockopt(nSocket,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof one) < 0)
-	{
-	perror("setsockopt");
+    if (setsockopt
+        (nSocket, SOL_SOCKET, SO_REUSEADDR, (char *)&one, sizeof one) < 0) {
+        perror("setsockopt");
         exit(2);
-	}
-
-    memset(&saServer,0,sizeof saServer);
-    saServer.sin_family=AF_INET;
-    saServer.sin_port=htons(nPort);
-    nSize=sizeof saServer;
-    if(bind(nSocket,(struct sockaddr *)&saServer,nSize) < 0)
-	{
-	perror("bind");
-	exit(3);
-	}
-
-    if(listen(nSocket,512) < 0)
-	{
-	perror("listen");
-	exit(4);
-	}
-
-    nLen=sizeof saClient;
-    nFD=accept(nSocket,(struct sockaddr *)&saClient,&nLen);
-    if(nFD < 0)
-	{
-	perror("accept");
-	exit(5);
-	}
-
-    fprintf(stderr,"Incoming accepted on port %d\n",nPort);
+    }
 
-    return nFD;
+    memset(&saServer, 0, sizeof saServer);
+    saServer.sin_family = AF_INET;
+    saServer.sin_port = htons(nPort);
+    nSize = sizeof saServer;
+    if (bind(nSocket, (struct sockaddr *)&saServer, nSize) < 0) {
+        perror("bind");
+        exit(3);
+    }
+
+    if (listen(nSocket, 512) < 0) {
+        perror("listen");
+        exit(4);
+    }
+
+    nLen = sizeof saClient;
+    nFD = accept(nSocket, (struct sockaddr *)&saClient, &nLen);
+    if (nFD < 0) {
+        perror("accept");
+        exit(5);
     }
 
-int main(int argc,char **argv)
-    {
+    fprintf(stderr, "Incoming accepted on port %d\n", nPort);
+
+    return nFD;
+}
+
+int main(int argc, char **argv)
+{
     SSLStateMachine *pMachine;
     int nPort;
     int nFD;
     const char *szCertificateFile;
     const char *szKeyFile;
     char rbuf[1];
-    int nrbuf=0;
+    int nrbuf = 0;
 
-    if(argc != 4)
-	{
-	fprintf(stderr,"%s <port> <certificate file> <key file>\n",argv[0]);
-	exit(6);
-	}
+    if (argc != 4) {
+        fprintf(stderr, "%s <port> <certificate file> <key file>\n", argv[0]);
+        exit(6);
+    }
 
-    nPort=atoi(argv[1]);
-    szCertificateFile=argv[2];
-    szKeyFile=argv[3];
+    nPort = atoi(argv[1]);
+    szCertificateFile = argv[2];
+    szKeyFile = argv[3];
 
     SSL_library_init();
     OpenSSL_add_ssl_algorithms();
     SSL_load_error_strings();
     ERR_load_crypto_strings();
 
-    nFD=OpenSocket(nPort);
-
-    pMachine=SSLStateMachine_new(szCertificateFile,szKeyFile);
-
-    for( ; ; )
-	{
-	fd_set rfds,wfds;
-	unsigned char buf[1024];
-	int n;
-
-	FD_ZERO(&rfds);
-	FD_ZERO(&wfds);
-
-	/* Select socket for input */
-	FD_SET(nFD,&rfds);
-
-	/* check whether there's decrypted data */
-	if(!nrbuf)
-	    nrbuf=SSLStateMachine_read_extract(pMachine,rbuf,1);
-
-	/* if there's decrypted data, check whether we can write it */
-	if(nrbuf)
-	    FD_SET(1,&wfds);
-
-	/* Select socket for output */
-	if(SSLStateMachine_write_can_extract(pMachine))
-	    FD_SET(nFD,&wfds);
-
-	/* Select stdin for input */
-	FD_SET(0,&rfds);
-
-	/* Wait for something to do something */
-	n=select(nFD+1,&rfds,&wfds,NULL,NULL);
-	assert(n > 0);
-
-	/* Socket is ready for input */
-	if(FD_ISSET(nFD,&rfds))
-	    {
-	    n=read(nFD,buf,sizeof buf);
-	    if(n == 0)
-		{
-		fprintf(stderr,"Got EOF on socket\n");
-		exit(0);
-		}
-	    assert(n > 0);
-
-	    SSLStateMachine_read_inject(pMachine,buf,n);
-	    }
-
-	/* stdout is ready for output (and hence we have some to send it) */
-	if(FD_ISSET(1,&wfds))
-	    {
-	    assert(nrbuf == 1);
-	    buf[0]=rbuf[0];
-	    nrbuf=0;
-
-	    n=SSLStateMachine_read_extract(pMachine,buf+1,sizeof buf-1);
-	    if(n < 0)
-		{
-		SSLStateMachine_print_error(pMachine,"read extract failed");
-		break;
-		}
-	    assert(n >= 0);
-	    ++n;
-	    if(n > 0) /* FIXME: has to be true now */
-		{
-		int w;
-		
-		w=write(1,buf,n);
-		/* FIXME: we should push back any unwritten data */
-		assert(w == n);
-		}
-	    }
-
-	/* Socket is ready for output (and therefore we have output to send) */
-	if(FD_ISSET(nFD,&wfds))
-	    {
-	    int w;
-
-	    n=SSLStateMachine_write_extract(pMachine,buf,sizeof buf);
-	    assert(n > 0);
-
-	    w=write(nFD,buf,n);
-	    /* FIXME: we should push back any unwritten data */
-	    assert(w == n);
-	    }
-
-	/* Stdin is ready for input */
-	if(FD_ISSET(0,&rfds))
-	    {
-	    n=read(0,buf,sizeof buf);
-	    if(n == 0)
-		{
-		fprintf(stderr,"Got EOF on stdin\n");
-		exit(0);
-		}
-	    assert(n > 0);
-
-	    SSLStateMachine_write_inject(pMachine,buf,n);
-	    }
-	}
+    nFD = OpenSocket(nPort);
+
+    pMachine = SSLStateMachine_new(szCertificateFile, szKeyFile);
+
+    for (;;) {
+        fd_set rfds, wfds;
+        unsigned char buf[1024];
+        int n;
+
+        FD_ZERO(&rfds);
+        FD_ZERO(&wfds);
+
+        /* Select socket for input */
+        FD_SET(nFD, &rfds);
+
+        /* check whether there's decrypted data */
+        if (!nrbuf)
+            nrbuf = SSLStateMachine_read_extract(pMachine, rbuf, 1);
+
+        /* if there's decrypted data, check whether we can write it */
+        if (nrbuf)
+            FD_SET(1, &wfds);
+
+        /* Select socket for output */
+        if (SSLStateMachine_write_can_extract(pMachine))
+            FD_SET(nFD, &wfds);
+
+        /* Select stdin for input */
+        FD_SET(0, &rfds);
+
+        /* Wait for something to do something */
+        n = select(nFD + 1, &rfds, &wfds, NULL, NULL);
+        assert(n > 0);
+
+        /* Socket is ready for input */
+        if (FD_ISSET(nFD, &rfds)) {
+            n = read(nFD, buf, sizeof buf);
+            if (n == 0) {
+                fprintf(stderr, "Got EOF on socket\n");
+                exit(0);
+            }
+            assert(n > 0);
+
+            SSLStateMachine_read_inject(pMachine, buf, n);
+        }
+
+        /* stdout is ready for output (and hence we have some to send it) */
+        if (FD_ISSET(1, &wfds)) {
+            assert(nrbuf == 1);
+            buf[0] = rbuf[0];
+            nrbuf = 0;
+
+            n = SSLStateMachine_read_extract(pMachine, buf + 1,
+                                             sizeof buf - 1);
+            if (n < 0) {
+                SSLStateMachine_print_error(pMachine, "read extract failed");
+                break;
+            }
+            assert(n >= 0);
+            ++n;
+            if (n > 0) {        /* FIXME: has to be true now */
+                int w;
+
+                w = write(1, buf, n);
+                /* FIXME: we should push back any unwritten data */
+                assert(w == n);
+            }
+        }
+
+        /*
+         * Socket is ready for output (and therefore we have output to send)
+         */
+        if (FD_ISSET(nFD, &wfds)) {
+            int w;
+
+            n = SSLStateMachine_write_extract(pMachine, buf, sizeof buf);
+            assert(n > 0);
+
+            w = write(nFD, buf, n);
+            /* FIXME: we should push back any unwritten data */
+            assert(w == n);
+        }
+
+        /* Stdin is ready for input */
+        if (FD_ISSET(0, &rfds)) {
+            n = read(0, buf, sizeof buf);
+            if (n == 0) {
+                fprintf(stderr, "Got EOF on stdin\n");
+                exit(0);
+            }
+            assert(n > 0);
+
+            SSLStateMachine_write_inject(pMachine, buf, n);
+        }
+    }
     /* not reached */
     return 0;
-    }
+}