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Jose Caban
2025-06-07 01:59:34 -04:00
commit 388ac241f0
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CS4210/Project 3/common/networking/CVS/Entries Normal file
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/networking.c/1.3/Sun Apr 2 10:06:57 2006//
/networking.h/1.3/Sun Apr 2 10:06:57 2006//
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CS4210/Project 3/common/networking/CVS/Entries.Extra Normal file
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/networking.c////*///
/networking.h////*///

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CS4210/Project 3/common/networking/CVS/Entries.Extra.Old Normal file
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/networking.c////*///
/networking.h////*///

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CS4210/Project 3/common/networking/CVS/Entries.Old Normal file
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/networking.c/0/dummy timestamp//
/networking.h/0/dummy timestamp//
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CS4210/Project 3/common/networking/CVS/Repository Normal file
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CS4210/Project 3/common/networking

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CS4210/Project 3/common/networking/CVS/Root Normal file
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:ext:asskoala@192.168.0.3:/usr/_CVS

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CS4210/Project 3/common/networking/networking.c Normal file
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#include "networking.h"
#include "../defs.h"
#ifdef _WIN32
#include <winsock.h>
#else
#include <unistd.h> /* close() */
#include <sys/socket.h> /* Socket Functions */
#include <sys/types.h> /* Socket Datatypes */
#include <netinet/in.h> /* IP Datatypes */
#include <arpa/inet.h> /* Address Structs */
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/*
* Build a socket on the port_number parameter
*/
int ContructTCPSocket(unsigned short port_number)
{
int servSock; /* Server sock descriptor. */
int opt; /* Reuse ocupied port */
struct sockaddr_in ServAddr; /* Server Socket addr */
struct sockaddr_in ClntAddr; /* Client Socket addr */
opt = REUSE_PORT; /* reuse port sockopt */
/* Construct local */
/* address structure */
memset( &ServAddr, 0, sizeof(ServAddr) ); /* Zero serve struct */
memset( &ClntAddr, 0, sizeof(ClntAddr) ); /* Zero client struct */
ServAddr.sin_family = AF_INET; /* Inet addr family */
ServAddr.sin_addr.s_addr = htonl(INADDR_ANY); /* Any incoming iface */
ServAddr.sin_port = htons(port_number); /* Local (server) port */
if ((servSock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
DieWithError("socket() failed"); /* create socket */
if (setsockopt(servSock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) == -1)
DieWithError("setsockopt() failed"); /* sockopt: reuse ports */
if (bind(servSock, (struct sockaddr *) &ServAddr, sizeof(ServAddr)) < 0)
DieWithError("bind() failed"); /* bind to the port */
if (listen(servSock, MAXPENDING) < 0)
DieWithError("listen() failed");
return servSock;
}
/*
* Accept a connection on the socket passed in
*/
int AcceptConnection(int server_socket)
{
int clntSock; /* client sock descriptor. */
struct sockaddr_in ClntAddr; /* Client Socket addr */
unsigned int ClntLen; /* client address *
* struct length */
ClntLen = sizeof(ClntAddr); /* Client addr length */
VPRINTF(("[PRODUCER] Waiting to accept a connection\n"));
if ((clntSock = accept(server_socket, (struct sockaddr *) &ClntAddr, &ClntLen)) < 0) {
//DieWithError("accept() failed"); /* Wait for a client to connect */
clntSock = -1; //negative socket, so it knows to ignore this connection
}
VPRINTF(("Handling client %s\n", inet_ntoa(ClntAddr.sin_addr)));
return clntSock;
}
/*
* Receive until there's nothing left to receive
* !! Fully Dynamic, must free the returned value when done
*/
int uber_recv(int sock, size_t max_to_receive, char *delimit, char **ppcData) {
char *curToRecv = malloc(max_to_receive);
char *dgramPtr;
int totalBytesRecv;
int newBytesRecv;
int i;
if (NULL == curToRecv) VPRINTF(("malloc() failed\n"));
memset(curToRecv, 0, sizeof(char)*max_to_receive);
{ // Begin For Loop
for(i=0,totalBytesRecv=0, newBytesRecv=0, dgramPtr=curToRecv;
totalBytesRecv < max_to_receive; totalBytesRecv+=newBytesRecv,i++) {
//VPRINTF(("Receiving %d Bytes. %d Bytes Total.\n",
// newBytesRecv, totalBytesRecv));
if(((newBytesRecv = recv(sock, dgramPtr,
max_to_receive - totalBytesRecv, 0)) <= 0)) {
VPRINTF(("recv() failed\n"));
free(curToRecv);
return -1;
} else {
char *curToRecv_ptr;
char *recv_tok;
dgramPtr += newBytesRecv;
//VPRINTF(("%s\n", curToRecv));
if (NULL==delimit) {
continue;
} else if(NULL != (recv_tok = strtok_r(curToRecv, delimit, &curToRecv_ptr))) {
*ppcData = curToRecv;
return totalBytesRecv;
}
}
} // End For Loop
}
*ppcData = curToRecv;
return totalBytesRecv;
}
int http_recv(int sock, size_t max_to_receive, char **ppcData) {
char *curToRecv;
char *dgramPtr;
int totalBytesRecv;
int newBytesRecv;
int i;
//check if socket closed
curToRecv = malloc(max_to_receive);
if (NULL == curToRecv) VPRINTF(("malloc() failed\n"));
memset(curToRecv, 0, sizeof(char)*max_to_receive);
{ // Begin For Loop
for(i=0,totalBytesRecv=0, newBytesRecv=0, dgramPtr=curToRecv;
totalBytesRecv < max_to_receive; totalBytesRecv+=newBytesRecv,i++) {
//VPRINTF(("Receiving %d Bytes. %d Bytes Total.\n",
// newBytesRecv, totalBytesRecv));
if(((newBytesRecv = recv(sock, dgramPtr,
max_to_receive - totalBytesRecv, 0)) <= 0)) {
VPRINTF(("recv() failed\n"));
free(curToRecv);
return 0;
} /*else {
char *curToRecv_ptr;
dgramPtr += newBytesRecv;
//VPRINTF(("%s\n", curToRecv));
if((NULL != strstr(curToRecv, "\r\n0\r\n\r\n"))) {
printf("Got End of HTTP Receive\n");
*ppcData = curToRecv;
return 0;
}
}*/
} // End For Loop
}
*ppcData = curToRecv;
return 1;
}
int createTCPSocket(char *ipaddr, unsigned short server_port)
{
int sock; /* Socket descriptor */
struct sockaddr_in ServAddr; /* Address Structure */
#ifdef _WIN32
WSADATA wsaData; /* Winsock struct. */
if (WSAStartup(MAKEWORD(2, 0), &wsaData) != 0)/* Winsock 2.0 DLL. */
DieWithError("WSAStartup() failed");
#endif
if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
DieWithError("socket() failed");
memset(&ServAddr, 0, sizeof(ServAddr));
ServAddr.sin_family = AF_INET;
ServAddr.sin_addr.s_addr = inet_addr(ipaddr);
ServAddr.sin_port = htons(server_port);
if (connect(sock, (struct sockaddr *) &ServAddr, sizeof(ServAddr)) < 0) {
return -1;
} else {
return sock;
}
}

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CS4210/Project 3/common/networking/networking.h Normal file
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#ifndef _NETWORKING_H_
#define _NETWORKING_H_
#include <sys/types.h>
#define MAXPENDING 5 /* Max Requests */
#define REUSE_PORT 1
int ContructTCPSocket(unsigned short port_number);
int AcceptConnection(int server_socket);
int uber_recv(int sock, size_t max_to_receive, char *delimit, char** ppcData);
int http_recv(int sock, size_t max_to_receive, char **ppcData);
//From client
int createTCPSocket(char *ipaddr, unsigned short server_port);
#endif