/* Start of the Program SERVERTCP.C */ /* SIVA SANTOSH VARMA ALLURI, K00351411 , Operating System Sec 003 */ /* This is an server side program for TCP based echo server using socket programming in UNIX using C programming. */ /* Include the necessary header files */ #include<stdio.h> /* IO stream Interface */ #include<stdlib.h> /* Standard General Utilities Library */ #include<unistd.h> /* misc. UNIX functions */ #include<sys/socket.h> /* socket definitions, pointer to socket address */ #include<sys/types.h> /* data type of socket address structure */ #include<netinet/in.h> /* for IPv4 socket address */ #include<netdb.h> /* structure for network host entry */ #include<strings.h> /* String manipulation operations */ #include<fcntl.h> /* file control options */ #include<arpa/inet.h> /* This is used to convert internet addresses between ASCII */ /* strings and network byte ordered binary values */ int main(int asrgc,char*argv[]) /* start of main function */ { int bd,sd,ad; /* bd is local protocol address to the socket */ /* sd is Internet socket address structure */ /* ad is accepted address */ char buff[1024]; /* Buffer size */ struct sockaddr_in cliaddr,servaddr; /* Create a socket using socket function with */ /* family AF_INET, type as SOCK_STREAM */ socklen_t clilen; /* Size of Host address */ clilen=sizeof(cliaddr); /* Size of Client address */ bzero(&servaddr,sizeof(servaddr)); /* Initialize server address to 0 using the bzero function.* /* Socket address structure*/ /* Assign the sin_family to AF_INET, sin_addr to INADDR_ANY, sin_port to a dynamically assigned port number. */ servaddr.sin_family=AF_INET; servaddr.sin_addr.s_addr=htonl(INADDR_ANY); servaddr.sin_port=htons(1999); /*TCP socket is created, an Internet socket address structure is filled with wildcard address & server’s well known port*/ sd=socket(AF_INET,SOCK_STREAM,0); /*Bind function assigns a local protocol address to the socket*/ bd=bind(sd,(struct sockaddr*)&servaddr,sizeof(servaddr)); /*Listen function specifies the maximum number of connections that kernel should queue for this socket*/ listen(sd,5); printf("SIVA SANTOSH VARMA ALLURI, OS, Sec 003 Server is running….\n"); /*The server to return the next completed connection from the front of the completed connection Queue calls it*/ /* Accept connection request from the client using accept function.*/ ad=accept(sd,(struct sockaddr*)&cliaddr,&clilen); /* Within an infinite loop, using the recv function receive message from the client and print it on the console */ while(1) { bzero(&buff,sizeof(buff)); recv(ad,buff,sizeof(buff),0); /*Receiving the request message from the client*/ printf(" Message received by SIVA SANTOSH VARMA ALLURI, OS , Sec 003”); /* Print Acknowledgement of received message */ } /* End of Program */ }
Standard input is empty
Main.java:7: error: illegal character: '#' #include<stdio.h> /* IO stream Interface */ ^ Main.java:7: error: class, interface, or enum expected #include<stdio.h> /* IO stream Interface */ ^ Main.java:8: error: illegal character: '#' #include<stdlib.h> /* Standard General Utilities Library */ ^ Main.java:9: error: illegal character: '#' #include<unistd.h> /* misc. UNIX functions */ ^ Main.java:10: error: illegal character: '#' #include<sys/socket.h> /* socket definitions, pointer to socket address */ ^ Main.java:11: error: illegal character: '#' #include<sys/types.h> /* data type of socket address structure */ ^ Main.java:12: error: illegal character: '#' #include<netinet/in.h> /* for IPv4 socket address */ ^ Main.java:13: error: illegal character: '#' #include<netdb.h> /* structure for network host entry */ ^ Main.java:14: error: illegal character: '#' #include<strings.h> /* String manipulation operations */ ^ Main.java:15: error: illegal character: '#' #include<fcntl.h> /* file control options */ ^ Main.java:16: error: illegal character: '#' #include<arpa/inet.h> /* This is used to convert internet addresses between ASCII */ ^ Main.java:30: error: class, interface, or enum expected char buff[1024]; /* Buffer size */ ^ Main.java:32: error: class, interface, or enum expected struct sockaddr_in cliaddr,servaddr; /* Create a socket using socket function with */ ^ Main.java:34: error: class, interface, or enum expected socklen_t clilen; /* Size of Host address */ ^ Main.java:35: error: class, interface, or enum expected clilen=sizeof(cliaddr); /* Size of Client address */ ^ Main.java:37: error: class, interface, or enum expected bzero(&servaddr,sizeof(servaddr)); /* Initialize server address to 0 using the bzero function.* ^ Main.java:45: error: class, interface, or enum expected servaddr.sin_family=AF_INET; ^ Main.java:46: error: class, interface, or enum expected servaddr.sin_addr.s_addr=htonl(INADDR_ANY); ^ Main.java:47: error: class, interface, or enum expected servaddr.sin_port=htons(1999); ^ Main.java:52: error: class, interface, or enum expected sd=socket(AF_INET,SOCK_STREAM,0); ^ Main.java:56: error: class, interface, or enum expected bd=bind(sd,(struct sockaddr*)&servaddr,sizeof(servaddr)); ^ Main.java:61: error: class, interface, or enum expected listen(sd,5); ^ Main.java:62: error: class, interface, or enum expected printf("SIVA SANTOSH VARMA ALLURI, OS, Sec 003 Server is running?.\n"); ^ Main.java:69: error: class, interface, or enum expected ad=accept(sd,(struct sockaddr*)&cliaddr,&clilen); ^ Main.java:74: error: class, interface, or enum expected while(1) ^ Main.java:78: error: class, interface, or enum expected recv(ad,buff,sizeof(buff),0); /*Receiving the request message from the client*/ ^ Main.java:80: error: class, interface, or enum expected printf(" Message received by SIVA SANTOSH VARMA ALLURI, OS , Sec 003?); ^ Main.java:80: error: unclosed string literal printf(" Message received by SIVA SANTOSH VARMA ALLURI, OS , Sec 003?); ^ Main.java:84: error: class, interface, or enum expected } /* End of Program */ ^ 29 errors
Standard output is empty