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Code

fixed a logic error in the sorted_tree_find_child() routine

Browse Source 
that caused a valid search to fail.  The printing registry
view now works again.
This commit is contained in:
Gerald Carter 0001-01-01 00:00:00 +00:00
parent 432b9f8d7c
commit 2050859f03
3 changed files with 69 additions and 33 deletions
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95
source/lib/adt_tree.c
View File

@ -21,6 +21,33 @@
#include "includes.h"
/**************************************************************************
Initialize the tree's root. The cmp_fn is a callback function used
for comparision of two children
*************************************************************************/
static BOOL trim_tree_keypath( char *path, char **base, char **new_path )
{
char *p;
*new_path = *base = NULL;
if ( !path )
return False;
*base = path;
p = strchr( path, '/' );
if ( p ) {
*p = '\0';
*new_path = p+1;
}
return True;
}
/**************************************************************************
Initialize the tree's root. The cmp_fn is a callback function used
for comparision of two children
@ -97,7 +124,7 @@ static TREE_NODE* sorted_tree_birth_child( TREE_NODE *node, char* key )
{
TREE_NODE *infant = NULL;
TREE_NODE **siblings;
int i, result;
int i;
if ( !(infant = (TREE_NODE*)malloc( sizeof(TREE_NODE) )) )
return NULL;
@ -117,7 +144,7 @@ static TREE_NODE* sorted_tree_birth_child( TREE_NODE *node, char* key )
/* first child */
if ( node->num_children == 1 ) {
DEBUG(10,("sorted_tree_birth_child: First child of node [%s]! [%s]\n",
DEBUG(11,("sorted_tree_birth_child: First child of node [%s]! [%s]\n",
node->key ? node->key : "NULL", infant->key ));
node->children[0] = infant;
}
@ -134,14 +161,15 @@ static TREE_NODE* sorted_tree_birth_child( TREE_NODE *node, char* key )
for ( i = node->num_children-1; i>=1; i-- )
{
DEBUG(10,("sorted_tree_birth_child: Looking for crib; infant -> [%s], child -> [%s]\n",
DEBUG(11,("sorted_tree_birth_child: Looking for crib; infant -> [%s], child -> [%s]\n",
infant->key, node->children[i-1]->key));
/* the strings should never match assuming that we
have called sorted_tree_find_child() first */
result = StrCaseCmp( infant->key, node->children[i-1]->key );
if ( result > 0 ) {
if ( StrCaseCmp( infant->key, node->children[i-1]->key ) > 0 ) {
DEBUG(11,("sorted_tree_birth_child: storing infant in i == [%d]\n",
i));
node->children[i] = infant;
break;
}
@ -150,8 +178,10 @@ static TREE_NODE* sorted_tree_birth_child( TREE_NODE *node, char* key )
node->children[i] = node->children[i-1];
}
DEBUG(11,("sorted_tree_birth_child: Exiting loop (i == [%d])\n", i ));
/* if we haven't found the correct clot yet, the child
/* if we haven't found the correct slot yet, the child
will be first in the list */
if ( i == 0 )
@ -160,6 +190,7 @@ static TREE_NODE* sorted_tree_birth_child( TREE_NODE *node, char* key )
return infant;
}
/**************************************************************************
Find the next child given a key string
*************************************************************************/
@ -179,9 +210,12 @@ static TREE_NODE* sorted_tree_find_child( TREE_NODE *node, char* key )
return NULL;
}
for ( i=0; i<(node->num_children); i++ )
{
result = StrCaseCmp( key, node->children[i]->key );
for ( i=0; i<node->num_children; i++ )
{
DEBUG(11,("sorted_tree_find_child: child key => [%s]\n",
node->children[i]->key));
result = StrCaseCmp( node->children[i]->key, key );
if ( result == 0 )
next = node->children[i];
@ -190,12 +224,12 @@ static TREE_NODE* sorted_tree_find_child( TREE_NODE *node, char* key )
the list of children is sorted by key name
If result == 0, then we have a match */
if ( !(result < 0) )
if ( result > 0 )
break;
}
DEBUG(11,("sorted_tree_find_child: Did %s find [%s]\n",
next ? "" : "not", key ));
DEBUG(11,("sorted_tree_find_child: %s [%s]\n",
next ? "Found" : "Did not find", key ));
return next;
}
@ -346,7 +380,7 @@ void sorted_tree_print_keys( SORTED_TREE *tree, int debug )
void* sorted_tree_find( SORTED_TREE *tree, char *key )
{
char *keystr, *base, *str;
char *keystr, *base, *str, *p;
TREE_NODE *current;
void *result = NULL;
@ -370,7 +404,11 @@ void* sorted_tree_find( SORTED_TREE *tree, char *key )
/* make a copy to play with */
keystr = strdup( key );
if ( *key == '/' )
keystr = strdup( key+1 );
else
keystr = strdup( key );
if ( !keystr ) {
DEBUG(0,("sorted_tree_find: strdup() failed on string [%s]!?!?!\n", key));
return NULL;
@ -378,8 +416,7 @@ void* sorted_tree_find( SORTED_TREE *tree, char *key )
/* start breaking the path apart */
base = keystr;
str = keystr;
p = keystr;
current = tree->root;
if ( tree->root->data_p )
@ -388,25 +425,15 @@ void* sorted_tree_find( SORTED_TREE *tree, char *key )
do
{
/* break off the remaining part of the path */
str = strchr( str, '/' );
if ( str )
*str = '\0';
trim_tree_keypath( p, &base, &str );
DEBUG(11,("sorted_tree_find: [loop] key => [%s]\n", base));
DEBUG(11,("sorted_tree_find: [loop] base => [%s], new_path => [%s]\n",
base, str));
/* iterate to the next child */
current = sorted_tree_find_child( current, base );
/* setup the next part of the path */
base = str;
if ( base ) {
*base = '/';
base++;
str = base;
}
/*
* the idea is that the data_p for a parent should
@ -416,12 +443,16 @@ void* sorted_tree_find( SORTED_TREE *tree, char *key )
if ( current && current->data_p )
result = current->data_p;
/* reset the path pointer 'p' to the remaining part of the key string */
p = str;
} while ( base && current );
} while ( str && current );
/* result should be the data_p from the lowest match node in the tree */
if ( result )
DEBUG(10,("sorted_tree_find: Found data_p!\n"));
DEBUG(11,("sorted_tree_find: Found data_p!\n"));
SAFE_FREE( keystr );

4
source/registry/reg_cachehook.c
View File

@ -74,6 +74,8 @@ REGISTRY_HOOK* reghook_cache_find( char *keyname )
if ( !keyname )
return NULL;
/* prepend the string with a '\' character */
len = strlen( keyname );
if ( !(key = malloc( len + 2 )) ) {
DEBUG(0,("reghook_cache_find: malloc failed for string [%s] !?!?!\n",
@ -84,6 +86,8 @@ REGISTRY_HOOK* reghook_cache_find( char *keyname )
*key = '\\';
strncpy( key+1, keyname, len+1);
/* swap to a form understood by the SORTED_TREE */
string_sub( key, "\\", "/", 0 );
DEBUG(10,("reghook_cache_find: Searching for keyname [%s]\n", key));

3
source/registry/reg_frontend.c
View File

@ -60,7 +60,8 @@ BOOL init_registry( void )
return False;
}
reghook_dump_cache(20);
if ( DEBUGLEVEL >= 20 )
reghook_dump_cache(20);
return True;
}