Add a plugin interface to wiretap.

So far I've done only regression testing (the new functionality and what's in wtap-plugins.c has not yet being tested).

it is a first step in the way to have lua opening files.



svn path=/trunk/; revision=21686

1 files changed, 39 insertions, 2 deletions

diff --git a/wiretap/wtap.c b/wiretap/wtap.c
index 206d9e77e9..4f686d7ee1 100644
--- a/wiretap/wtap.c
+++ b/wiretap/wtap.c
@@ -84,10 +84,12 @@ wtap_file_tsprecision(wtap *wth)
 }
 
 /* Table of the encapsulation types we know about. */
-static const struct encap_type_info {
+struct encap_type_info {
 	const char *name;
 	const char *short_name;
-} encap_table[WTAP_NUM_ENCAP_TYPES] = {
+};
+
+static struct encap_type_info encap_table_base[] = {
 	/* WTAP_ENCAP_UNKNOWN */
 	{ "Unknown", NULL },
 
@@ -377,6 +379,41 @@ static const struct encap_type_info {
 	{ "MPEG", "mpeg" },
 };
 
+gint wtap_num_encap_types = sizeof(encap_table_base) / sizeof(struct encap_type_info);
+static GArray* encap_table_arr = NULL;
+static const struct encap_type_info* encap_table = NULL;
+
+static void wtap_init_encap_types(void) {
+	
+	if (encap_table_arr) return;
+	
+	encap_table_arr = g_array_new(FALSE,TRUE,sizeof(struct encap_type_info));
+	
+	g_array_append_vals(encap_table_arr,encap_table_base,wtap_num_encap_types);
+	
+	encap_table = (void*)encap_table_arr->data;
+}
+
+int wtap_get_num_encap_types(void) {
+	wtap_init_encap_types();
+	return wtap_num_encap_types;
+}
+
+
+int wtap_register_encap_type(char* name, char* short_name) {
+	struct encap_type_info* e = g_malloc(sizeof(struct encap_type_info));
+	wtap_init_encap_types();
+	
+	e->name = g_strdup(name);
+	e->short_name = g_strdup(short_name);
+	
+	g_array_append_val(encap_table_arr,e);
+
+	encap_table = (void*)encap_table_arr->data;
+	return wtap_num_encap_types++;
+}
+
+
 /* Name that should be somewhat descriptive. */
 const char
 *wtap_encap_string(int encap)