From b03ac3497b4d75f8abdf9e7b7337c7dc9c5d846c Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Sun, 21 Jun 2009 09:52:22 +0000
Subject: [PATCH] Add a generic binary protocol configuration file analyser
 that outputs the relevant parts of a generic binary protocol configuration

---
 utils/xmlgrep/Makefile.am              |  16 +++-
 utils/xmlgrep/generic-config-analyse.c | 119 +++++++++++++++++++++++++
 2 files changed, 131 insertions(+), 4 deletions(-)
 create mode 100644 utils/xmlgrep/generic-config-analyse.c

diff --git a/utils/xmlgrep/Makefile.am b/utils/xmlgrep/Makefile.am
index 084efb4ee..0a883bc9f 100644
--- a/utils/xmlgrep/Makefile.am
+++ b/utils/xmlgrep/Makefile.am
@@ -4,18 +4,26 @@ noinst_LIBRARIES = libxmlconf.a
 
 libxmlconf_a_SOURCES = xml_cache.c xml.c
 
-noinst_PROGRAMS = testxml printxml xmlgrep
+noinst_PROGRAMS = \
+	testxml \
+	printxml \
+	xmlgrep \
+	printtree \
+	generic_config_analyse
 
 testxml_SOURCES = testxml.c
 testxml_LDADD = libxmlconf.a
 
-printxml_SOURCES = $(xml_SOURCE) printxml.c
+printxml_SOURCES = printxml.c
 printxml_LDADD = libxmlconf.a
 
-printtree_SOURCES = $(xml_SOURCE) printtree.c
+printtree_SOURCES = printtree.c
 printtree_LDADD = libxmlconf.a
 
-xmlgrep_SOURCES = $(xml_SOURCE) xmlgrep.c xml.c xml.h
+xmlgrep_SOURCES = xmlgrep.c
 xmlgrep_LDADD = libxmlconf.a
 
+generic_config_analyse_SOURCES = generic-config-analyse.c
+generic_config_analyse_LDADD = libxmlconf.a
+
 INCLUDES = -DSRC_DIR=\"$(top_srcdir)/utils/xmlgrep\" -DXML_USE_NODECACHE
diff --git a/utils/xmlgrep/generic-config-analyse.c b/utils/xmlgrep/generic-config-analyse.c
new file mode 100644
index 000000000..1e8ffeb47
--- /dev/null
+++ b/utils/xmlgrep/generic-config-analyse.c
@@ -0,0 +1,119 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <malloc.h>
+#include <assert.h>
+#include "xml.h"
+
+#define ROOTNODE	"/PropertyList/generic"
+#define BUFLEN		4096
+
+#define PRINT_ERROR_AND_EXIT(id) \
+    if (xmlErrorGetNo(id, 0) != XML_NO_ERROR) { \
+         const char *errstr = xmlErrorGetString(id, 0); \
+         size_t column = xmlErrorGetColumnNo(id, 0); \
+         size_t lineno = xmlErrorGetLineNo(id, 1); \
+         printf("Error at line %i, column %i: %s\n", lineno, column, errstr); \
+         exit(-1); \
+      }
+
+void print_binary_protocol(void *, char *, char *);
+
+int main(int argc, char **argv)
+{
+   void *root_id, *protocol_id = 0;
+   char *filename;
+
+   if (argc != 2)
+   {
+      printf("Usage: %s <filename>\n", argv[0]);
+      exit(-1);
+   }
+
+   filename = argv[1];
+   root_id = xmlOpen(filename);
+   if (root_id) protocol_id = xmlNodeGet(root_id, ROOTNODE);
+
+   if (protocol_id)
+   {
+      void *dir_id;
+
+      dir_id = xmlNodeGet(protocol_id, "input");
+      if (dir_id)
+      {
+         if (!xmlNodeCompareString(dir_id, "binary_mode", "true")) {
+            print_binary_protocol(dir_id, filename, "input");
+         } else {
+            printf("Only binary mode support is implemented at the moment.\n");
+         }
+         free(dir_id);
+      }
+
+      dir_id = xmlNodeGet(protocol_id, "output");
+      if (dir_id)
+      {
+         if (!xmlNodeCompareString(dir_id, "binary_mode", "true")) {
+            print_binary_protocol(dir_id, filename, "output");
+         } else {
+            printf("Only binary mode support is implemented at the moment.\n");
+         }
+         free(dir_id);
+      }
+
+      free(protocol_id);
+   }
+
+   if (root_id)
+   {
+      xmlClose(root_id);
+   }
+
+   return 0;
+}
+
+/* -------------------------------------------------------------------------- */
+
+void print_binary_protocol(void *id, char *filename, char *dir)
+{
+   unsigned int i, num, pos = 0;
+   void *xid;
+
+   printf("\n%s\n", filename);
+   printf("Generic binary %s protocol packet descriptopn:\n\n", dir);
+   printf(" pos | size |  type  | factor     | description\n");
+   printf("-----|------|--------|------------|------------------------\n");
+   xid = xmlMarkId(id);
+   num = xmlNodeGetNum(xid, "chunk");
+   for (i=0; i<num; i++)
+   {
+      if (xmlNodeGetPos(id, xid, "chunk", i) != 0)
+      {
+         char factor[11];
+         char *name, *type;
+         int size;
+
+         type = xmlNodeGetString(xid, "type");
+         if (!strcasecmp(type, "bool")) {
+            size = 1;
+         } else if (!strcasecmp(type, "float")) {
+            size = 4;
+         } else if (!strcasecmp(type, "double")) {
+            size = 8;
+         } else {		/* defaults to integer */
+            size = 4;
+         }
+
+         xmlNodeCopyString(xid, "factor", (char *)factor, 10);
+         name = xmlNodeGetString(xid, "name");
+
+         printf("%4i | %4i | %6s | %10s | %s\n", pos, size, type, factor?factor:"", name);
+         pos += size;
+
+         free(type);
+         free(name);
+      }
+   }
+
+   printf("\ntotal package size: %i bytes\n\n", pos);
+   free(xid);
+}
-- 
2.39.5