WolfSSL
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wolfssl-examples
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Kaleb Himes 2014-06-05 11:23:09 -06:00
parent bb7f0702a2
commit 62e48b50d9
1 changed files with 17 additions and 32 deletions
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49
project1/dtls_secured/server-dtls.c
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@ -39,11 +39,12 @@
#define SERV_PORT 11111 /* define our server port number */
#define MSGLEN 4096
CYASSL_CTX* ctx;
static int cleanup; /* To handle shutdown */
void AwaitDGram(); /* Separate out Handling Datagrams */
struct sockaddr_in servaddr; /* our server's address */
struct sockaddr_in cliaddr; /* the client's address */
CYASSL_CTX* ctx;
void AwaitDGram(); /* Separate out Handling Datagrams */
void sig_handler(const int sig);
void sig_handler(const int sig)
@ -55,15 +56,21 @@ void sig_handler(const int sig)
exit(0);
}
void AwaitDGram()
{
char ack[] = "I hear you fashizzle!";
int listenfd = 0; /* Initialize our socket */
socklen_t clilen; /* length of address' */
int recvlen = 0; /* length of message */
char ack[] = "I hear you fashizzle!\n";
char buff[MSGLEN]; /* the incoming message */
int listenfd = 0; /* Initialize our socket */
int recvlen = 0; /* length of message */
int res = 1;
int on = 1;
int connfd = 0;
socklen_t len = sizeof(on);
socklen_t clilen;
clilen = sizeof(cliaddr);
unsigned char b[1500];
CYASSL* ssl = NULL;
while (cleanup != 1) {
@ -83,18 +90,13 @@ void AwaitDGram()
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
servaddr.sin_port = htons(SERV_PORT);
/* Eliminate socket already in use error */
int res = 1;
int on = 1;
socklen_t len = sizeof(on);
res = setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &on, len);
if (res < 0) {
printf("Setsockopt SO_REUSEADDR failed.\n");
cleanup = 1;
}
/*Bind Socket*/
if (bind(listenfd,
(struct sockaddr *)&servaddr, sizeof(servaddr)) < 0) {
@ -105,9 +107,6 @@ void AwaitDGram()
printf("Awaiting client connection on port %d\n", SERV_PORT);
/* set clilen to |cliaddr| */
clilen = sizeof(cliaddr);
unsigned char b[1500];
int connfd = 0;
connfd = (int)recvfrom(listenfd, (char *)&b, sizeof(b), MSG_PEEK,
@ -131,8 +130,6 @@ void AwaitDGram()
}
printf("Connected!\n");
/* initialize arg */
CYASSL* ssl;
/* Create the CYASSL Object */
if (( ssl = CyaSSL_new(ctx) ) == NULL) {
@ -140,11 +137,9 @@ void AwaitDGram()
cleanup = 1;
}
/* set the session ssl to client connection port */
CyaSSL_set_fd(ssl, listenfd);
if (CyaSSL_accept(ssl) != SSL_SUCCESS) {
int err = CyaSSL_get_error(ssl, 0);
char buffer[80];
@ -154,17 +149,12 @@ void AwaitDGram()
printf("SSL_accept failed.\n");
cleanup = 1;
}
if (( recvlen = CyaSSL_read(ssl, buff, sizeof(buff)-1)) > 0) {
printf("heard %d bytes\n", recvlen);
buff[recvlen] = 0;
printf("I heard this: \"%s\"\n", buff);
}
if (recvlen < 0) {
int readErr = CyaSSL_get_error(ssl, 0);
if(readErr != SSL_ERROR_WANT_READ) {
@ -172,19 +162,15 @@ void AwaitDGram()
cleanup = 1;
}
}
if (CyaSSL_write(ssl, ack, sizeof(ack)) < 0) {
printf("CyaSSL_write fail.\n");
cleanup = 1;
} else {
printf("lost the connection to client\n");
}
else
printf("lost the connection to client\n");
printf("reply sent \"%s\"\n", ack);
CyaSSL_set_fd(ssl, 0);
CyaSSL_shutdown(ssl);
CyaSSL_free(ssl);
@ -193,7 +179,6 @@ void AwaitDGram()
}
}
int main(int argc, char** argv)
{
/* structures for signal handling */
@ -203,7 +188,7 @@ int main(int argc, char** argv)
* Define a signal handler for when the user closes the program
* with Ctrl-C. Also, turn off SA_RESTART so that the OS doesn't
* restart the call to accept() after the signal is handled.
*/
*/
act.sa_handler = sig_handler;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;