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#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <vdr/config.h>
#include "server.h"
cTCPConnection::cTCPConnection() {
fd=0;
Server=NULL;
buffer=NULL;
bufferLength=0;
bufferFill=0;
parsed=0;
HasLine=false;
}
cTCPConnection::~cTCPConnection() {
Close();
if (buffer) free(buffer);
}
bool cTCPConnection::Open(int filedesc, cServer *server) {
if (IsConnected()) return false;
fd=filedesc;
Server=server;
// make fd non-blocking:
int oldflags = fcntl(fd, F_GETFL, 0);
if (oldflags < 0) {
LOG_ERROR;
Close();
return false;
}
oldflags |= O_NONBLOCK;
if (fcntl(fd, F_SETFL, oldflags) < 0) {
LOG_ERROR;
Close();
return false;
}
buffer=(char*)malloc(InitialBufferLength);
if (!buffer) {
Close();
return false;
}
bufferLength=InitialBufferLength;
return true;
}
void cTCPConnection::Close() {
if (fd>0) close(fd);
fd=0;
}
bool cTCPConnection::Send(const char *s, int length) {
if (!IsConnected()) return false;
if (length < 0)
length = strlen(s);
if (safe_write(fd, s, length) < 0) {
LOG_ERROR;
return false;
}
return true;
}
/*
Reply-Codes:
1xx - Debugging
2xx - End of reply
3xx - Status messages
4xx - Error codes
5xx - Data return, quoted
6xx - Data return, multi-line
*/
char* cTCPConnection::ReadLine() {
if (HasLine) return buffer;
while (parsed<bufferFill) {
if (buffer[parsed]=='\n') {
buffer[parsed]=0;
HasLine=true;
return buffer;
}
parsed++;
}
// need more data
if (bufferLength==bufferFill) {
bufferLength+=256;
buffer=(char*)realloc(buffer,bufferLength);
}
int len=read(fd,buffer+bufferFill,bufferLength-bufferFill);
if (len==0) {
Close();
return NULL;
}
if (len<0 && errno!=EAGAIN && errno!=EINTR) {
LOG_ERROR;
Close();
return NULL;
}
if (len>0) bufferFill+=len;
while (parsed<bufferFill) {
if (buffer[parsed]=='\n') {
buffer[parsed]=0;
HasLine=true;
return buffer;
}
parsed++;
}
// Still need more data
return NULL;
}
void cTCPConnection::AddSelect(cSelect &Selector) {
Selector.SetRead(fd);
}
void cTCPConnection::DelLine() {
if (!HasLine) return;
memmove(buffer,buffer+parsed+1,bufferFill-parsed-1);
bufferFill=bufferFill-parsed-1;
parsed=0;
HasLine=false;
}
cServer::cServer(int Port, const char *Hosts)
: cThread("osdserver"),
socket(this, Port,3) {
HasOSDServerHosts = (Hosts != NULL);
if (HasOSDServerHosts) {
OSDServerHosts.Load(Hosts, true, true);
}
}
bool cServer::cServerSocket::Accepted(in_addr_t Address)
{
if (!server) return false;
if (server->HasOSDServerHosts)
return server->OSDServerHosts.Acceptable(Address);
else
return SVDRPhosts.Acceptable(Address);
}
void cServer::Action() {
if (!socket.Open()) return;
while (Running()) {
cSelect Selector;
Selector.SetTimeoutMs(1000);
Selector.SetRead(socket);
int fd=socket.Accept();
if (fd>0) {
cTCPConnection *c=new cTCPConnection();
if (c && !c->Open(fd,this)) {
delete c;
c=NULL;
}
if (c) {
cCommandProcessor *p=new cCommandProcessor(c);
if (p) {
connections.Add(p);
} else {
delete c;
}
}
}
for (cCommandProcessor *p = connections.First(); p; ) {
cCommandProcessor *next=connections.Next(p);
if (!p->Action(Selector)) connections.Del(p);
p=next;
}
int cnt=Selector.Select();
if (cnt < 0) {
if (errno!=EINTR) LOG_ERROR;
}
}
socket.Close();
}
cServer::~cServer() {
}
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