#include <glib.h>
#include <epan/epan.h>
-#include <epan/strutil.h>
+#include <wsutil/unicode-utils.h>
+#include <epan/emem.h>
#include "guid-utils.h"
#ifdef _WIN32
#include <windows.h>
#endif
-
-/* GUID "registry" */
-typedef struct _guid_key {
- e_guid_t guid;
-} guid_key;
-
-typedef struct _guid_value {
- const gchar *name;
-} guid_value;
-
-
-/* global guid to name collection */
-GHashTable *guids = NULL;
+static emem_tree_t *guid_to_name_tree = NULL;
#ifdef _WIN32
/* try to resolve an DCE/RPC interface name to it's name using the Windows registry entries */
/* XXX - might be better to fill all interfaces into our database at startup instead of searching each time */
-int ResolveWin32UUID(e_guid_t if_id, char *uuid_name, int uuid_name_max_len)
+int
+ResolveWin32UUID(e_guid_t if_id, char *uuid_name, int uuid_name_max_len)
{
- TCHAR reg_uuid_name[MAX_PATH];
+ TCHAR *reg_uuid_name;
HKEY hKey = NULL;
DWORD uuid_max_size = MAX_PATH;
- TCHAR reg_uuid_str[MAX_PATH];
+ TCHAR *reg_uuid_str;
+
+ reg_uuid_name=ep_alloc(MAX_PATH*sizeof(TCHAR));
+ reg_uuid_str=ep_alloc(MAX_PATH*sizeof(TCHAR));
- if(uuid_name_max_len < 2)
+ if(uuid_name_max_len < 2){
return 0;
+ }
reg_uuid_name[0] = '\0';
_snwprintf(reg_uuid_str, MAX_PATH, _T("SOFTWARE\\Classes\\Interface\\{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}"),
if_id.data1, if_id.data2, if_id.data3,
if_id.data4[2], if_id.data4[3],
if_id.data4[4], if_id.data4[5],
if_id.data4[6], if_id.data4[7]);
- if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, reg_uuid_str, 0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
- {
- if (RegQueryValueEx(hKey, NULL, NULL, NULL, (LPBYTE)reg_uuid_name, &uuid_max_size) == ERROR_SUCCESS && uuid_max_size <= MAX_PATH)
- {
+ if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, reg_uuid_str, 0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS) {
+ if (RegQueryValueEx(hKey, NULL, NULL, NULL, (LPBYTE)reg_uuid_name, &uuid_max_size) == ERROR_SUCCESS && uuid_max_size <= MAX_PATH) {
g_snprintf(uuid_name, uuid_name_max_len, "%s", utf_16to8(reg_uuid_name));
RegCloseKey(hKey);
- return strlen(uuid_name);
+ return (int) strlen(uuid_name);
}
RegCloseKey(hKey);
}
#endif
-/* Tries to match a guid against its name.
- Returns the associated string ptr on a match.
- Formats uuid number and returns the resulting string, if name is unknown.
- (derived from val_to_str) */
-const gchar* guids_resolve_guid_to_str(e_guid_t *guid) {
- const gchar *ret;
- static gchar str[3][64];
- static gchar *cur;
-
-
- ret = guids_get_guid_name(guid);
- if (ret != NULL)
- return ret;
- if (cur == &str[0][0]) {
- cur = &str[1][0];
- } else if (cur == &str[1][0]) {
- cur = &str[2][0];
- } else {
- cur = &str[0][0];
- }
- g_snprintf(cur, 64, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
- guid->data1, guid->data2, guid->data3,
- guid->data4[0], guid->data4[1],
- guid->data4[2], guid->data4[3],
- guid->data4[4], guid->data4[5],
- guid->data4[6], guid->data4[7]);
- return cur;
-}
-
-
-static gint
-guid_equal (gconstpointer k1, gconstpointer k2)
+/* store a guid to name mapping */
+void
+guids_add_guid(e_guid_t *guid, const gchar *name)
{
- const guid_key *key1 = (const guid_key *)k1;
- const guid_key *key2 = (const guid_key *)k2;
- return ((memcmp (&key1->guid, &key2->guid, sizeof (e_guid_t)) == 0));
+ emem_tree_key_t guidkey[2];
+ guint32 g[4];
+
+ g[0]=guid->data1;
+
+ g[1]=guid->data2;
+ g[1]<<=16;
+ g[1]|=guid->data3;
+
+ g[2]=guid->data4[0];
+ g[2]<<=8;
+ g[2]|=guid->data4[1];
+ g[2]<<=8;
+ g[2]|=guid->data4[2];
+ g[2]<<=8;
+ g[2]|=guid->data4[3];
+
+ g[3]=guid->data4[4];
+ g[3]<<=8;
+ g[3]|=guid->data4[5];
+ g[3]<<=8;
+ g[3]|=guid->data4[6];
+ g[3]<<=8;
+ g[3]|=guid->data4[7];
+
+ guidkey[0].key=g;
+ guidkey[0].length=4;
+ guidkey[1].length=0;
+
+ pe_tree_insert32_array(guid_to_name_tree, &guidkey[0], (gchar *) name);
}
-static guint
-guid_hash (gconstpointer k)
-{
- const guid_key *key = (const guid_key *)k;
- /* This isn't perfect, but the Data1 part of these is almost always
- unique. */
- return key->guid.data1;
-}
-void guids_init(void)
+/* retrieve the registered name for this GUID */
+const gchar *
+guids_get_guid_name(e_guid_t *guid)
{
- g_assert(guids == NULL);
+ emem_tree_key_t guidkey[2];
+ guint32 g[4];
+ char *name;
+#ifdef _WIN32
+ static char *uuid_name;
+#endif
- guids = g_hash_table_new (guid_hash, guid_equal);
-}
+ g[0]=guid->data1;
+
+ g[1]=guid->data2;
+ g[1]<<=16;
+ g[1]|=guid->data3;
+
+ g[2]=guid->data4[0];
+ g[2]<<=8;
+ g[2]|=guid->data4[1];
+ g[2]<<=8;
+ g[2]|=guid->data4[2];
+ g[2]<<=8;
+ g[2]|=guid->data4[3];
+
+ g[3]=guid->data4[4];
+ g[3]<<=8;
+ g[3]|=guid->data4[5];
+ g[3]<<=8;
+ g[3]|=guid->data4[6];
+ g[3]<<=8;
+ g[3]|=guid->data4[7];
+
+ guidkey[0].key=g;
+ guidkey[0].length=4;
+ guidkey[1].length=0;
+
+ if((name = pe_tree_lookup32_array(guid_to_name_tree, &guidkey[0]))){
+ return name;
+ }
-void guids_add_guid(e_guid_t *guid, const gchar *name)
-{
- guid_key *key = g_malloc (sizeof (*key));
- guid_value *value = g_malloc (sizeof (*value));
+#ifdef _WIN32
+ /* try to resolve the mapping from the Windows registry */
+ /* XXX - prefill the resolving database with all the Windows registry entries once at init only (instead of searching each time)? */
+ uuid_name=ep_alloc(128);
+ if(ResolveWin32UUID(*guid, uuid_name, 128)) {
+ return uuid_name;
+ }
+#endif
- key->guid = *guid;
+ return NULL;
+}
- /* XXX - do we need to copy the name? */
- value->name = name;
- g_hash_table_insert (guids, key, value);
+void
+guids_init(void)
+{
+ guid_to_name_tree=pe_tree_create(EMEM_TREE_TYPE_RED_BLACK, "guid_to_name");
+ /* XXX here is a good place to read a config file with wellknown guids */
}
-/* try to get registered name for this GUID */
-const gchar *guids_get_guid_name(e_guid_t *guid)
+/* Tries to match a guid against its name.
+ Returns the associated string ptr on a match.
+ Formats uuid number and returns the resulting string, if name is unknown.
+ (derived from val_to_str) */
+const gchar *
+guids_resolve_guid_to_str(e_guid_t *guid)
{
- guid_key key;
- guid_value *value;
-#ifdef _WIN32
- /* XXX - we need three time circulating buffer here */
- /* XXX - is there a maximum length of the name? */
- static char uuid_name[128];
-#endif
-
- /* try to get registered guid "name" of guid */
- key.guid = *guid;
+ const gchar *name;
- if ((value = g_hash_table_lookup (guids, &key)) != NULL) {
- return value->name;
+ name=guids_get_guid_name(guid);
+ if(name){
+ return name;
}
-#ifdef _WIN32
- /* try to resolve the mapping from the Windows registry */
- /* XXX - prefill the resolving database with all the Windows registry entries once at init only (instead of searching each time)? */
- if(ResolveWin32UUID(*guid, uuid_name, 128)) {
- return uuid_name;
- }
-#endif
-
- return NULL;
+ return ep_strdup_printf("%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ guid->data1, guid->data2, guid->data3,
+ guid->data4[0], guid->data4[1],
+ guid->data4[2], guid->data4[3],
+ guid->data4[4], guid->data4[5],
+ guid->data4[6], guid->data4[7]);
}
+
git.samba.org / obnox / wireshark / wip.git / blobdiff