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#include <sys/types.h>
#include <sys/socket.h>
#include <sys/param.h>
#include <netinet/in.h>
#include <unistd.h>
#include "sig.h"
#include "stralloc.h"
#include "str.h"
#include "env.h"
#include "fmt.h"
#include "scan.h"
#include "subgetopt.h"
#include "ip.h"
#include "dns.h"
#include "byte.h"
#include "remoteinfo.h"
#include "exit.h"
#include "case.h"
void die() { _exit(111); }
struct sockaddr_in salocal;
unsigned long localport;
struct ip_address iplocal;
stralloc localname = {0};
struct sockaddr_in saremote;
unsigned long remoteport;
struct ip_address ipremote;
stralloc remotename = {0};
char temp[IPFMT + FMT_ULONG];
void main(argc,argv)
int argc;
char *argv[];
{
int dummy;
char *proto;
int opt;
int flagremoteinfo;
unsigned long timeout;
sig_pipeignore();
flagremoteinfo = 1;
timeout = 30;
while ((opt = sgopt(argc,argv,"rRt:")) != sgoptdone)
switch(opt)
{
case 'r': flagremoteinfo = 1; break;
case 'R': flagremoteinfo = 0; break;
case 't': scan_ulong(sgoptarg,&timeout); break;
}
argv += sgoptind;
argc -= sgoptind;
if (argc < 1) die();
if (!env_init()) die();
proto = env_get("PROTO");
if (!proto || str_diff(proto,"TCP"))
{
if (!env_put("PROTO=TCP")) die();
dummy = sizeof(salocal);
if (getsockname(0,(struct sockaddr *) &salocal,&dummy) == -1) die();
localport = ntohs(salocal.sin_port);
temp[fmt_ulong(temp,localport)] = 0;
if (!env_put2("TCPLOCALPORT",temp)) die();
byte_copy(&iplocal,4,&salocal.sin_addr);
temp[ip_fmt(temp,&iplocal)] = 0;
if (!env_put2("TCPLOCALIP",temp)) die();
switch(dns_ptr(&localname,&iplocal))
{
case DNS_MEM: die();
case DNS_SOFT:
if (!stralloc_copys(&localname,"softdnserror")) die();
case 0:
if (!stralloc_0(&localname)) die();
case_lowers(localname.s);
if (!env_put2("TCPLOCALHOST",localname.s)) die();
break;
default:
if (!env_unset("TCPLOCALHOST")) die();
}
dummy = sizeof(saremote);
if (getpeername(0,(struct sockaddr *) &saremote,&dummy) == -1) die();
remoteport = ntohs(saremote.sin_port);
temp[fmt_ulong(temp,remoteport)] = 0;
if (!env_put2("TCPREMOTEPORT",temp)) die();
byte_copy(&ipremote,4,&saremote.sin_addr);
temp[ip_fmt(temp,&ipremote)] = 0;
if (!env_put2("TCPREMOTEIP",temp)) die();
switch(dns_ptr(&remotename,&ipremote))
{
case DNS_MEM: die();
case DNS_SOFT:
if (!stralloc_copys(&remotename,"softdnserror")) die();
case 0:
if (!stralloc_0(&remotename)) die();
case_lowers(remotename.s);
if (!env_put2("TCPREMOTEHOST",remotename.s)) die();
break;
default:
if (!env_unset("TCPREMOTEHOST")) die();
}
if (!env_unset("TCPREMOTEINFO")) die();
if (flagremoteinfo)
{
char *rinfo;
rinfo = remoteinfo_get(&ipremote,remoteport,&iplocal,localport,(int) timeout);
if (rinfo)
if (!env_put2("TCPREMOTEINFO",rinfo)) die();
}
}
sig_pipedefault();
execvp(*argv,argv);
die();
}
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