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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2018 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Felipe Pena <felipe@php.net> |
| Authors: Joe Watkins <joe.watkins@live.co.uk> |
| Authors: Bob Weinand <bwoebi@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef PHPDBG_CMD_H
#define PHPDBG_CMD_H
#include "TSRM.h"
#include "zend_generators.h"
/* {{{ Command and Parameter */
enum {
NO_ARG = 0,
REQUIRED_ARG,
OPTIONAL_ARG
};
typedef enum {
EMPTY_PARAM = 0,
ADDR_PARAM,
FILE_PARAM,
NUMERIC_FILE_PARAM,
METHOD_PARAM,
STR_PARAM,
NUMERIC_PARAM,
NUMERIC_FUNCTION_PARAM,
NUMERIC_METHOD_PARAM,
STACK_PARAM,
EVAL_PARAM,
SHELL_PARAM,
COND_PARAM,
OP_PARAM,
ORIG_PARAM,
RUN_PARAM
} phpdbg_param_type;
typedef struct _phpdbg_param phpdbg_param_t;
struct _phpdbg_param {
phpdbg_param_type type;
long num;
zend_ulong addr;
struct {
char *name;
long line;
} file;
struct {
char *class;
char *name;
} method;
char *str;
size_t len;
phpdbg_param_t *next;
phpdbg_param_t *top;
};
#define phpdbg_init_param(v, t) do{ \
(v)->type = (t); \
(v)->addr = 0; \
(v)->num = 0; \
(v)->file.name = NULL; \
(v)->file.line = 0; \
(v)->method.class = NULL; \
(v)->method.name = NULL; \
(v)->str = NULL; \
(v)->len = 0; \
(v)->next = NULL; \
(v)->top = NULL; \
} while(0)
#ifndef YYSTYPE
#define YYSTYPE phpdbg_param_t
#endif
#define PHPDBG_ASYNC_SAFE 1
typedef int (*phpdbg_command_handler_t)(const phpdbg_param_t*);
typedef struct _phpdbg_command_t phpdbg_command_t;
struct _phpdbg_command_t {
const char *name; /* Command name */
size_t name_len; /* Command name length */
const char *tip; /* Menu tip */
size_t tip_len; /* Menu tip length */
char alias; /* Alias */
phpdbg_command_handler_t handler; /* Command handler */
const phpdbg_command_t *subs; /* Sub Commands */
char *args; /* Argument Spec */
const phpdbg_command_t *parent; /* Parent Command */
zend_bool flags; /* General flags */
};
/* }}} */
/* {{{ misc */
#define PHPDBG_STRL(s) s, sizeof(s)-1
#define PHPDBG_MAX_CMD 500
#define PHPDBG_FRAME(v) (PHPDBG_G(frame).v)
#define PHPDBG_EX(v) (EG(current_execute_data)->v)
typedef struct {
int num;
zend_generator *generator;
zend_execute_data *execute_data;
} phpdbg_frame_t;
/* }}} */
/*
* Workflow:
* 1) the lexer/parser creates a stack of commands and arguments from input
* 2) the commands at the top of the stack are resolved sensibly using aliases, abbreviations and case insensitive matching
* 3) the remaining arguments in the stack are verified (optionally) against the handlers declared argument specification
* 4) the handler is called passing the top of the stack as the only parameter
* 5) the stack is destroyed upon return from the handler
*/
/*
* Input Management
*/
PHPDBG_API char* phpdbg_read_input(char *buffered);
PHPDBG_API void phpdbg_destroy_input(char**);
PHPDBG_API int phpdbg_ask_user_permission(const char *question);
/**
* Stack Management
*/
PHPDBG_API void phpdbg_stack_push(phpdbg_param_t *stack, phpdbg_param_t *param);
PHPDBG_API void phpdbg_stack_separate(phpdbg_param_t *param);
PHPDBG_API const phpdbg_command_t *phpdbg_stack_resolve(const phpdbg_command_t *commands, const phpdbg_command_t *parent, phpdbg_param_t **top);
PHPDBG_API int phpdbg_stack_verify(const phpdbg_command_t *command, phpdbg_param_t **stack);
PHPDBG_API int phpdbg_stack_execute(phpdbg_param_t *stack, zend_bool allow_async_unsafe);
PHPDBG_API void phpdbg_stack_free(phpdbg_param_t *stack);
/*
* Parameter Management
*/
PHPDBG_API void phpdbg_clear_param(phpdbg_param_t*);
PHPDBG_API void phpdbg_copy_param(const phpdbg_param_t*, phpdbg_param_t*);
PHPDBG_API zend_bool phpdbg_match_param(const phpdbg_param_t *, const phpdbg_param_t *);
PHPDBG_API zend_ulong phpdbg_hash_param(const phpdbg_param_t *);
PHPDBG_API const char* phpdbg_get_param_type(const phpdbg_param_t*);
PHPDBG_API char* phpdbg_param_tostring(const phpdbg_param_t *param, char **pointer);
PHPDBG_API void phpdbg_param_debug(const phpdbg_param_t *param, const char *msg);
/**
* Command Declarators
*/
#define PHPDBG_COMMAND_HANDLER(name) phpdbg_do_##name
#define PHPDBG_COMMAND_D_EXP(name, tip, alias, handler, children, args, parent, flags) \
{PHPDBG_STRL(#name), tip, sizeof(tip)-1, alias, phpdbg_do_##handler, children, args, parent, flags}
#define PHPDBG_COMMAND_D_EX(name, tip, alias, handler, children, args, flags) \
{PHPDBG_STRL(#name), tip, sizeof(tip)-1, alias, phpdbg_do_##handler, children, args, NULL, flags}
#define PHPDBG_COMMAND_D(name, tip, alias, children, args, flags) \
{PHPDBG_STRL(#name), tip, sizeof(tip)-1, alias, phpdbg_do_##name, children, args, NULL, flags}
#define PHPDBG_COMMAND(name) int phpdbg_do_##name(const phpdbg_param_t *param)
#define PHPDBG_COMMAND_ARGS param
#define PHPDBG_END_COMMAND {NULL, 0, NULL, 0, '\0', NULL, NULL, NULL, NULL, 0}
/*
* Default Switch Case
*/
#define phpdbg_default_switch_case() \
default: \
phpdbg_error("command", "type=\"wrongarg\" got=\"%s\"", "Unsupported parameter type (%s) for command", phpdbg_get_param_type(param)); \
break
#endif /* PHPDBG_CMD_H */