From efc84af94003531f2e670cdc754b0c455656198c Mon Sep 17 00:00:00 2001
From: Zeev Suraski <zeev@php.net>
Date: Sat, 4 Dec 1999 14:26:26 +0000
Subject: [PATCH] - Implement get_used_files() and get_imported_files()

---
 Zend/zend-scanner.l           | 18 ++++++++++++++-
 Zend/zend_builtin_functions.c | 42 +++++++++++++++++++++++++++++++++++
 Zend/zend_compile.c           |  9 +++++++-
 3 files changed, 67 insertions(+), 2 deletions(-)

diff --git a/Zend/zend-scanner.l b/Zend/zend-scanner.l
index 534bfe746b..e2595856a2 100644
--- a/Zend/zend-scanner.l
+++ b/Zend/zend-scanner.l
@@ -189,6 +189,11 @@ ZEND_API void zend_open_file_dtor(zend_file_handle *fh)
 		case ZEND_HANDLE_FP:
 			fclose(fh->handle.fp);
 			break;
+		case ZEND_HANDLE_FILENAME:
+			/* We're only supposed to get here when destructing the used_files hash,
+			 * which doesn't really contain open files, but references to their names/paths
+			 */
+			break;
 #ifdef ZTS
 		case ZEND_HANDLE_FSTREAM:
 			delete ((ifstream *) fh->handle.is);
@@ -521,10 +526,21 @@ int require_file(zend_file_handle *file_handle, zend_bool unique CLS_DC)
 	}
 	if (file_handle->opened_path) {
 		if (unique) {
-			if (zend_hash_add(&CG(used_files), file_handle->opened_path, strlen(file_handle->opened_path)+1, file_handle, sizeof(zend_file_handle), NULL)==FAILURE) {
+			zend_file_handle *pfh;
+
+			if (zend_hash_add(&CG(used_files), file_handle->opened_path, strlen(file_handle->opened_path)+1, file_handle, sizeof(zend_file_handle), (void **) &pfh)==FAILURE) {
 				zend_close_file_handle(file_handle CLS_CC);
 				restore_lexical_state(&original_lex_state CLS_CC);
 				return SUCCESS;
+			} else {
+				/* pfh is a copy we only save for get_used_files() */
+				pfh->type = ZEND_HANDLE_FILENAME;
+				if (pfh->filename) {
+					pfh->filename = estrdup(pfh->filename);
+				}
+				if (pfh->opened_path) {
+					pfh->opened_path = strdup(pfh->opened_path);
+				}
 			}
 		}
 	}
diff --git a/Zend/zend_builtin_functions.c b/Zend/zend_builtin_functions.c
index 1f7c498660..4e70e460a2 100644
--- a/Zend/zend_builtin_functions.c
+++ b/Zend/zend_builtin_functions.c
@@ -40,6 +40,8 @@ static ZEND_FUNCTION(get_class);
 static ZEND_FUNCTION(get_parent_class);
 static ZEND_FUNCTION(method_exists);
 static ZEND_FUNCTION(leak);
+static ZEND_FUNCTION(get_used_files);
+static ZEND_FUNCTION(get_imported_files);
 
 extern unsigned char first_arg_force_ref[];
 
@@ -59,6 +61,8 @@ static zend_function_entry builtin_functions[] = {
 	ZEND_FE(get_parent_class,	NULL)
 	ZEND_FE(method_exists,		NULL)
 	ZEND_FE(leak,				NULL)
+	ZEND_FE(get_used_files,		NULL)
+	ZEND_FE(get_imported_files,	NULL)
 	{ NULL, NULL, NULL }
 };
 
@@ -421,3 +425,41 @@ ZEND_FUNCTION(leak)
 	
 	emalloc(leakbytes);
 }
+
+
+static int copy_import_use_file(zend_file_handle *fh, zval *array)
+{
+	if (fh->filename) {
+		char *extension_start;
+
+		extension_start = strstr(fh->filename, zend_uv.import_use_extension);
+		if (extension_start) {
+			*extension_start = 0;
+			if (fh->opened_path) {
+				add_assoc_string(array, fh->filename, fh->opened_path, 1);
+			} else {
+				add_assoc_stringl(array, fh->filename, "N/A", sizeof("N/A")-1, 1);
+			}
+			*extension_start = zend_uv.import_use_extension[0];
+		}
+	}
+	return 0;
+}
+
+
+ZEND_FUNCTION(get_used_files)
+{
+	CLS_FETCH();
+
+	array_init(return_value);
+	zend_hash_apply_with_argument(&CG(used_files), (int (*)(void *, void *)) copy_import_use_file, return_value);
+}
+
+
+ZEND_FUNCTION(get_imported_files)
+{
+	ELS_FETCH();
+
+	array_init(return_value);
+	zend_hash_apply_with_argument(&EG(imported_files), (int (*)(void *, void *)) copy_import_use_file, return_value);
+}
diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index 247ad5567a..a21c2ed16e 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -77,6 +77,13 @@ static void build_runtime_defined_function_key(zval *result, zval *name, zend_op
 }
 
 
+static int zend_open_file_dtor_wrapper(zend_file_handle *fh)
+{
+	zend_open_file_dtor(fh);
+	return 1;
+}
+
+
 void init_compiler(CLS_D ELS_DC)
 {
 	zend_stack_init(&CG(bp_stack));
@@ -95,7 +102,7 @@ void init_compiler(CLS_D ELS_DC)
 	init_resource_list(ELS_C);
 	CG(unclean_shutdown) = 0;
 	zend_llist_init(&CG(open_files), sizeof(zend_file_handle), (void (*)(void *)) zend_open_file_dtor, 0);
-	zend_hash_init(&CG(used_files), 5, NULL, NULL , 0);
+	zend_hash_init(&CG(used_files), 5, NULL, (int (*)(void *)) zend_open_file_dtor_wrapper, 0);
 }
 
 
-- 
2.40.0