Veresion 2.1.41. Added ziffy, the promiscuous Z39.50 APDU sniffer

[yaz-moved-to-github.git] / ziffy / yaz.c

diff --git a/ziffy/yaz.c b/ziffy/yaz.c
new file mode 100644 (file)
index 0000000..b73a3e2
--- /dev/null
+++ b/ziffy/yaz.c
@@ -0,0 +1,145 @@
+/*
+ * -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+ * yaz.c - decoding and printing utility based on the YAZ Toolkit
+ *
+ * Copyright (c) 1998-2001 R. Carbone <rocco@ntop.org>
+ * -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+
+/*
+ * Operating System include files
+ */
+#include <stdio.h>
+#include <sys/time.h>
+
+/*
+ * YAZ include files
+ */
+#include "yaz/odr.h"
+#include "yaz/proto.h"
+
+#include "apdu.h"
+
+
+void please_yaz_help_me (z3950apdu * hook)
+{
+  extern unsigned char * z3950;
+  extern int z3950_size;
+
+  /*
+   * Variable to keep the Z39.50 APDUs. The definitions are in the
+   * the structures defined by the YAZ Toolkit.
+   */
+  Z_APDU * apdu = NULL;
+
+  /*
+   * Decoding/Printing streams
+   */
+  ODR printing;
+  ODR decode;
+
+  /*
+   * The stream used for decoding
+   */
+#define MAXBERSIZE (2048 * 2048)
+  unsigned char berbuffer [MAXBERSIZE];
+
+  /*
+   * Allocate a stream for input data
+   */
+  decode = odr_createmem (ODR_DECODE);
+  if (! decode)
+    {
+      printf ("Not enough memory to create an input stream\n");
+      return;
+    }
+
+  /*
+   * Allocate a stream for printing data
+   */
+  printing = odr_createmem (ODR_PRINT);
+  if (! printing)
+    {
+      printf ("Not enough memory to create a printing stream\n");
+      odr_destroy (decode);
+      return;
+    }
+
+  /*
+   * Initialize the decoding routines
+   */
+  memcpy (berbuffer, z3950, z3950_size);
+
+  odr_setbuf (decode, berbuffer, z3950_size, 0);
+
+  /*
+   * Perform BER decoding
+   */
+  if (z_APDU (decode, & apdu, 0, 0))
+    {
+      ++ z3950_apduno;
+
+      if (z3950flag)
+       printf ("Z3950:  ----- Z39.50 APDU -----\n"),
+         printf ("Z3950:  APDU %ld arrived at %s\n", z3950_apduno,
+                 timestamp (hook -> t, ABS_FMT)),
+         printf ("Z3950:  Total size  = %d\n", z3950_size),
+         fflush (stdout);
+
+      /*
+       * save the time the last apdu was displayed
+       */
+      if (z3950_apduno == 1)
+       gettimeofday (& first_apdu, NULL);
+
+      /*
+       * print standard summary information accordingly to the format
+       *
+       * id   time     source:port ->   destination:port    type
+       */
+      printf ("Z3950: %5ld %s %s:%d -> %s:%d %s\n",
+             z3950_apduno, timestamp (hook -> t, DELTA_FMT),
+             hook -> calling, hook -> srcport, hook -> called, hook -> dstport,
+             hook -> name),
+       fflush (stdout);
+
+      gettimeofday (& last_apdu, NULL);
+
+#if (0)
+      fmemdmp (stdout, z3950, z3950_size, "Z39.50 APDU");
+#endif
+
+      /*
+       * Yup! We have the APDU now. Try to print it
+       */
+      odr_setbuf (printing, berbuffer, z3950_size, 0);
+      fflush (stdout);
+
+      z_APDU (printing, & apdu, 0, 0);
+      fflush (stderr);
+
+      odr_reset (printing);
+      printing -> buf = NULL;
+    }
+
+  /*
+   * release memory previously allocated
+   */
+  odr_destroy (decode);
+  odr_destroy (printing);
+}