int start( int aPort )
{
signal(SIGPIPE, SIG_IGN);
printf( "\nServer ready.");
while ( 1 ) {
connection con = await_contact( aPort );
if ( -1 == con ) {
printf( "\nError while establishing connection." );
continue;
}
pthread_t dummy;
int err;
err = pthread_create(&dummy, NULL, handleConnection, &con);
if (err != 0) {
/*
* Inform the client
*/
printf("\nCan't create thread: [%s]", strerror(err));
}
}
return 0;
}
/*-----------------------------------------------------------------------
*
* Program: echoserver
* Purpose: wait for a connection from an echoclient and echo data
* Usage: echoserver <appnum>
*
*-----------------------------------------------------------------------
*/
int
main(int argc, char *argv[])
{
connection conn;
int len;
char buff[BUFFSIZE];
if (argc != 2) {
(void) fprintf(stderr, "usage: %s <appnum>\n", argv[0]);
exit(1);
}
/* wait for a connection from an echo client */
conn = await_contact((appnum) atoi(argv[1]));
if (conn < 0)
exit(1);
/* iterate, echoing all data received until end of file */
while((len = recv(conn, buff, BUFFSIZE, 0)) > 0)
(void) send(conn, buff, len, 0);
send_eof(conn);
return 0;
}
/*-----------------------------------------------------------------------
*
* Program: echoserver
* Purpose: wait for a connection from an echoclient and echo data
* Usage: echoserver <appnum>
*
*-----------------------------------------------------------------------
*/
int
main(int argc, char *argv[])
{
connection conn;
int len;
char buff[BUFFSIZE];
char fp;
while(1){
if (argc != 2) {
(void) fprintf(stderr, "usage: %s <appnum>\n", argv[0]);
exit(1);
}
/* wait for a connection from an echo client */
conn = await_contact((appnum) atoi(argv[1]));
if (conn < 0)
exit(1);
/* iterate, echoing all data received until end of file */
FILE *fp;
fp=fopen("archivo.txt","w+");
while((len = recv(conn, buff, BUFFSIZE, 0)) > 0){
fputs(buff, fp);
(void) send(conn, buff, len, 0);
} }
fclose(fp);
send_eof(conn);
return 0;
}
/*-----------------------------------------------------------------------
*
* Program: echoserver
* Purpose: wait for a connection from an echoclient and echo data
* Usage: echoserver <appnum>
*
*-----------------------------------------------------------------------
*/
int
main(int argc, char *argv[])
{
connection conn;
int len;
char size[4];
char buff[BUFFSIZE];
if (argc != 2) {
(void) fprintf(stderr, "usage: %s <SERVER_APPLICATION_NUMBER>\n", argv[0]);
exit(1);
}
/* wait for a connection from an echo client */
conn = await_contact((appnum) atoi(argv[1]));
if (conn < 0)
exit(1);
// Waits for 4 bytes to come through because we know that will
// be the size of the paragraph
while((len = recv(conn, size, 4, 0)) > 0) {
// Print that we've received a paragraph
printf("%s", INITIAL_OUTPUT);
// These 4 bytes are the size of the paragraph
// So we are converting it from the Network Endianness
// to our host Endianness
uint32_t len = ntohl(*((unsigned long*) size));
// Keep track of the number bytes read from the paragraph
int bytesRead = 0;
// Keep concatenating on this char array for the whole paragraph
char paragraph[BUFFSIZE];
// Keep reading until we have all the bytes
while (bytesRead < len) {
// Smaller buffer for the characters read on this recv() call
char charactersRead[BUFFSIZE];
int lengthOfBytes;
// Read some bytes from the sender
if (lengthOfBytes = recv(conn, charactersRead, BUFFSIZE, 0) > 0) {
// Concatenate our paragraph with the bytes that were read
strcat(paragraph, charactersRead);
// Increment the counter with the size of the bytes read
bytesRead += strlen(charactersRead);
// Clear the charactersRead buffer just for security
memset(&charactersRead[0], 0, sizeof(charactersRead));
}
}
// Print the paragraph
printf("%s", paragraph);
fflush(stdout);
// Clear the paragraph buffer
memset(¶graph[0], 0, sizeof(paragraph));
}
send_eof(conn);
fflush(stdout);
return 0;
}
