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/*
* $Id: server.c,v 1.12 1997/12/03 10:23:53 brian Exp $
*/
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/un.h>
#include <unistd.h>
#include "command.h"
#include "mbuf.h"
#include "log.h"
#include "loadalias.h"
#include "defs.h"
#include "vars.h"
#include "server.h"
#include "id.h"
int server = -1;
static struct sockaddr_un ifsun;
static char *rm;
int
ServerLocalOpen(const char *name, mode_t mask)
{
int s;
if (VarLocalAuth == LOCAL_DENY) {
LogPrintf(LogERROR, "Local: Can't open socket %s: No password "
"in ppp.secret\n", name);
return 1;
}
if (mode & MODE_INTER) {
LogPrintf(LogERROR, "Local: Can't open socket in interactive mode\n");
return 1;
}
memset(&ifsun, '\0', sizeof ifsun);
ifsun.sun_len = strlen(name);
if (ifsun.sun_len > sizeof ifsun.sun_path - 1) {
LogPrintf(LogERROR, "Local: %s: Path too long\n", name);
return 2;
}
ifsun.sun_family = AF_LOCAL;
strcpy(ifsun.sun_path, name);
s = ID0socket(PF_LOCAL, SOCK_STREAM, 0);
if (s < 0) {
LogPrintf(LogERROR, "Local: socket: %s\n", strerror(errno));
return 3;
}
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &s, sizeof s);
if (mask != (mode_t)-1)
mask = umask(mask);
if (bind(s, (struct sockaddr *) & ifsun, sizeof(ifsun)) < 0) {
if (mask != (mode_t)-1)
umask(mask);
LogPrintf(LogERROR, "Local: bind: %s\n", strerror(errno));
if (errno == EADDRINUSE && VarTerm)
fprintf(VarTerm, "Wait for a while, then try again.\n");
close(s);
return 4;
}
if (mask != (mode_t)-1)
umask(mask);
if (listen(s, 5) != 0) {
LogPrintf(LogERROR, "Local: Unable to listen to socket - OS overload?\n");
close(s);
ID0unlink(name);
return 5;
}
ServerClose();
server = s;
rm = ifsun.sun_path;
LogPrintf(LogPHASE, "Listening at local socket %s.\n", name);
return 0;
}
int
ServerTcpOpen(int port)
{
struct sockaddr_in ifsin;
int s;
if (VarLocalAuth == LOCAL_DENY) {
LogPrintf(LogERROR, "Tcp: Can't open socket %d: No password "
"in ppp.secret\n", port);
return 6;
}
if (mode & MODE_INTER) {
LogPrintf(LogERROR, "Tcp: Can't open socket in interactive mode\n");
return 6;
}
s = ID0socket(PF_INET, SOCK_STREAM, 0);
if (s < 0) {
LogPrintf(LogERROR, "Tcp: socket: %s\n", strerror(errno));
return 7;
}
memset(&ifsin, '\0', sizeof ifsin);
ifsin.sin_family = AF_INET;
ifsin.sin_addr.s_addr = INADDR_ANY;
ifsin.sin_port = htons(port);
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &s, sizeof s);
if (bind(s, (struct sockaddr *) & ifsin, sizeof(ifsin)) < 0) {
LogPrintf(LogERROR, "Tcp: bind: %s\n", strerror(errno));
if (errno == EADDRINUSE && VarTerm)
fprintf(VarTerm, "Wait for a while, then try again.\n");
close(s);
return 8;
}
if (listen(s, 5) != 0) {
LogPrintf(LogERROR, "Tcp: Unable to listen to socket - OS overload?\n");
close(s);
return 9;
}
ServerClose();
server = s;
LogPrintf(LogPHASE, "Listening at port %d.\n", port);
return 0;
}
void
ServerClose()
{
if (server >= 0) {
close(server);
if (rm) {
ID0unlink(rm);
rm = 0;
}
}
server = -1;
}
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