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/* XXX: this program knows quite a bit about tcpto's internals */
#include <sys/socket.h>
#include <unistd.h>
#include "buffer.h"
#include "error.h"
#include "exit.h"
#include "fmt.h"
#include "ip.h"
#include "lock.h"
#include "logmsg.h"
#include "open.h"
#include "datetime.h"
#include "now.h"
#ifdef USE_CONFIG
#include "fehsqm-config.h"
#else
#include "auto_qmail.h"
#endif
#define WHO "qmail-tcpto"
static void die(int n)
{
buffer_flush(buffer_1);
_exit(n);
}
static void warn(char *s)
{
char *x;
x = error_str(errno);
buffer_puts(buffer_1, s);
buffer_puts(buffer_1, ": ");
buffer_puts(buffer_1, x);
buffer_puts(buffer_1, "\n");
}
static void die_chdir()
{
logmsg(WHO, 110, FATAL, "unable to chdir");
}
static void die_open()
{
logmsg(WHO, 112, FATAL, "unable to open tcpto");
}
static void die_lock()
{
logmsg(WHO, 112, FATAL, "unable to lock tcpto");
}
static void die_read()
{
logmsg(WHO, 112, FATAL, "unable to read tcpto");
}
char tcpto_buf[1024];
char tmp[FMT_ULONG + IPFMT];
int main(void)
{
int fdlock;
int fd;
int r;
int i;
char *record;
char ip4[4];
char ip6[16];
datetime_sec when;
datetime_sec start;
if (chdir(auto_qmail) == -1) die_chdir();
if (chdir("queue/lock") == -1) die_chdir();
fdlock = open_write("tcpto");
if (fdlock == -1) die_open();
fd = open_read("tcpto");
if (fd == -1) die_open();
if (lock_ex(fdlock) == -1) die_lock();
r = read(fd, tcpto_buf, sizeof(tcpto_buf));
close(fd);
close(fdlock);
if (r == -1) die_read();
r >>= 5; /* 32 bit read */
start = now();
record = tcpto_buf;
for (i = 0; i < r; ++i) {
if (record[4] >= 1) {
when = (unsigned long)(unsigned char)record[11];
when = (when << 8) + (unsigned long)(unsigned char)record[10];
when = (when << 8) + (unsigned long)(unsigned char)record[9];
when = (when << 8) + (unsigned long)(unsigned char)record[8];
if (record[0] == AF_INET) {
byte_copy(&ip4, 4, record + 16);
buffer_put(buffer_1, tmp, ip4_fmt(tmp, ip4));
} else {
byte_copy(&ip6, 16, record + 16);
buffer_put(buffer_1, tmp, ip6_fmt(tmp, ip6));
}
buffer_puts(buffer_1, " timed out ");
buffer_put(buffer_1, tmp, fmt_ulong(tmp, (unsigned long)(start - when)));
buffer_puts(buffer_1, " seconds ago; # recent timeouts: ");
buffer_put(buffer_1, tmp, fmt_ulong(tmp, (unsigned long)(unsigned char)record[4]));
buffer_puts(buffer_1, "\n");
}
record += 32;
}
die(0);
}
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