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

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

diff --git a/ziffy/fmemdmp.c b/ziffy/fmemdmp.c
new file mode 100644 (file)
index 0000000..66d84eb
--- /dev/null
+++ b/ziffy/fmemdmp.c
@@ -0,0 +1,106 @@
+/*
+ * -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+ * fmemdmp.c - tracing utilities
+ *
+ * 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 <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <ctype.h>
+
+#include <time.h>
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+
+
+/*
+ * Pretty print function.
+ *
+ * This function dumps a buffer in memory in the (pretty !!) format :
+ *
+ *   off:  printable          hexadecimal notation
+ * --------------------------------------------------------------------------
+ *
+ * Dump of memory area at address 0x10000444 for 51 bytes
+ *     0:  abcdefghijklmnop   61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70
+ *    16:  qrstuvzxyw012345   71 72 73 74 75 76 7a 78 79 77 30 31 32 33 34 35
+ *    32:  6789~!@#$%^&*()_   36 37 38 39 7e 21 40 23 24 25 5e 26 2a 28 29 5f
+ *    48:  -+=                2d 2b 3d
+ *
+ * Dump of memory area at address 0x7fffbc03 for 16 bytes
+ *    0:  rocco@tecsiel.it    72 6f 63 63 6f 40 74 65 63 73 69 65 6c 2e 69 74
+ */
+void fmemdmp (FILE * fd, char * ptr, int size, char * text)
+{
+  int offset = 0;
+  int i = 0;
+  int bytes_in_a_line = 16;
+  unsigned int total;
+
+  if (! ptr || size <= 0)
+    return;
+
+  if (text && * text)
+    fprintf (fd, "\"%s\" at address 0x%08x for %d bytes\n",
+            text, (unsigned int) ptr, size);
+
+  for (total = 0; total < size; total += bytes_in_a_line)
+    {
+      /*
+       * Print the offset
+       */
+      fprintf (fd, "%6d:  ", offset);
+      /*
+       * Print the bytes in a line (each byte in ASCII notation)
+       */
+      for (i = 0; i < bytes_in_a_line; i ++)
+       if (total + i < size)
+         fprintf (fd, "%c",
+                  isprint (* (ptr + total + i) & 0x000000ff)
+                  ? (* (ptr + total + i))
+                  : '.');
+       else
+         fprintf (fd, " "); /* 1 blank character */
+      /*
+       * Print the separator
+       */
+      fprintf (fd, "  ");
+      /*
+       * Print the bytes in a line (each byte in Hexadecimal notation)
+       */
+      for (i = 0; i < bytes_in_a_line && i < size; i ++)
+       if (total + i < size)
+         fprintf (fd, "%02x ",
+                  * (ptr + total + i) & 0x000000ff);
+       else
+         fprintf (fd, "   "); /* 3 more blanks characters */
+
+      fprintf (fd, "\n");
+      offset += bytes_in_a_line;
+    }
+  fflush (fd);
+}