1 files changed, 95 insertions, 0 deletions
diff --git a/src/qmail-tcpto.c b/src/qmail-tcpto.c
new file mode 100644
index 0000000..e148c55
--- /dev/null
+++ b/src/qmail-tcpto.c
@@ -0,0 +1,95 @@
+/* XXX: this program knows quite a bit about tcpto's internals */
+
+#include <sys/socket.h>
+#include <unistd.h>
+#include "buffer.h"
+#include "auto_qmail.h"
+#include "fmt.h"
+#include "ip.h"
+#include "lock.h"
+#include "error.h"
+#include "exit.h"
+#include "datetime.h"
+#include "now.h"
+#include "stralloc.h"
+#include "open.h"
+#include "logmsg.h"
+
+#define WHO "qmail-tcpto"
+
+void die(n) int n; { buffer_flush(buffer_1); _exit(n); }
+
+void warn(s) 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");
+}
+
+void die_chdir() { logmsg(WHO,110,FATAL,"unable to chdir"); }
+void die_open() { logmsg(WHO,112,FATAL,"unable to open tcpto"); }
+void die_lock() { logmsg(WHO,112,FATAL,"unable to lock tcpto"); }
+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);
+}