phpdbg.c

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2014 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>                                |
   +----------------------------------------------------------------------+
*/

#if !defined(ZEND_SIGNALS) || defined(_WIN32)
# include <signal.h>
#endif
#include "phpdbg.h"
#include "phpdbg_prompt.h"
#include "phpdbg_bp.h"
#include "phpdbg_break.h"
#include "phpdbg_list.h"
#include "phpdbg_utils.h"
#include "phpdbg_set.h"
#include "phpdbg_io.h"
#include "zend_alloc.h"
#include "phpdbg_eol.h"

/* {{{ remote console headers */
#ifndef _WIN32
#	include <sys/socket.h>
#	include <sys/select.h>
#	include <sys/time.h>
#	include <sys/types.h>
#	include <sys/poll.h>
#	include <netinet/in.h>
#	include <unistd.h>
#	include <arpa/inet.h>
#endif /* }}} */

ZEND_DECLARE_MODULE_GLOBALS(phpdbg);

static PHP_INI_MH(OnUpdateEol)
{
	if (!new_value) {
		return FAILURE;
	}

	return phpdbg_eol_global_update(new_value TSRMLS_CC);
}

PHP_INI_BEGIN()
	STD_PHP_INI_ENTRY("phpdbg.path", "", PHP_INI_SYSTEM | PHP_INI_PERDIR, OnUpdateString, socket_path, zend_phpdbg_globals, phpdbg_globals)
	STD_PHP_INI_ENTRY("phpdbg.eol", "2", PHP_INI_ALL, OnUpdateEol, socket_path, zend_phpdbg_globals, phpdbg_globals)
PHP_INI_END()

static zend_bool phpdbg_booted = 0;

#if PHP_VERSION_ID >= 50500
void (*zend_execute_old)(zend_execute_data *execute_data TSRMLS_DC);
#else
void (*zend_execute_old)(zend_op_array *op_array TSRMLS_DC);
#endif

static inline void php_phpdbg_globals_ctor(zend_phpdbg_globals *pg) /* {{{ */
{
	pg->prompt[0] = NULL;
	pg->prompt[1] = NULL;

	pg->colors[0] = NULL;
	pg->colors[1] = NULL;
	pg->colors[2] = NULL;

	pg->exec = NULL;
	pg->exec_len = 0;
	pg->buffer = NULL;
	pg->last_was_newline = 1;
	pg->ops = NULL;
	pg->vmret = 0;
	pg->bp_count = 0;
	pg->flags = PHPDBG_DEFAULT_FLAGS;
	pg->oplog = NULL;
	memset(pg->io, 0, sizeof(pg->io));
	pg->frame.num = 0;
	pg->sapi_name_ptr = NULL;
	pg->socket_fd = -1;
	pg->socket_server_fd = -1;

	pg->req_id = 0;
	pg->err_buf.active = 0;
	pg->err_buf.type = 0;

	pg->input_buflen = 0;
	pg->sigsafe_mem.mem = NULL;
	pg->sigsegv_bailout = NULL;

#ifdef PHP_WIN32
	pg->sigio_watcher_thread = INVALID_HANDLE_VALUE;
	memset(&pg->swd, 0, sizeof(struct win32_sigio_watcher_data));
#endif

	pg->eol = PHPDBG_EOL_LF;
} /* }}} */

static PHP_MINIT_FUNCTION(phpdbg) /* {{{ */
{
	ZEND_INIT_MODULE_GLOBALS(phpdbg, php_phpdbg_globals_ctor, NULL);
	REGISTER_INI_ENTRIES();

#if PHP_VERSION_ID >= 50500
	zend_execute_old = zend_execute_ex;
	zend_execute_ex = phpdbg_execute_ex;
#else
	zend_execute_old = zend_execute;
	zend_execute = phpdbg_execute_ex;
#endif

	REGISTER_STRINGL_CONSTANT("PHPDBG_VERSION", PHPDBG_VERSION, sizeof(PHPDBG_VERSION)-1, CONST_CS|CONST_PERSISTENT);

	REGISTER_LONG_CONSTANT("PHPDBG_FILE",   FILE_PARAM, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PHPDBG_METHOD", METHOD_PARAM, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PHPDBG_LINENO", NUMERIC_PARAM, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PHPDBG_FUNC",   STR_PARAM, CONST_CS|CONST_PERSISTENT);

	REGISTER_LONG_CONSTANT("PHPDBG_COLOR_PROMPT", PHPDBG_COLOR_PROMPT, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PHPDBG_COLOR_NOTICE", PHPDBG_COLOR_NOTICE, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PHPDBG_COLOR_ERROR",  PHPDBG_COLOR_ERROR, CONST_CS|CONST_PERSISTENT);

	return SUCCESS;
} /* }}} */

static void php_phpdbg_destroy_bp_file(void *brake) /* {{{ */
{
	zend_hash_destroy((HashTable*)brake);
} /* }}} */

static void php_phpdbg_destroy_bp_symbol(void *brake) /* {{{ */
{
	efree((char*)((phpdbg_breaksymbol_t*)brake)->symbol);
} /* }}} */

static void php_phpdbg_destroy_bp_opcode(void *brake) /* {{{ */
{
	efree((char*)((phpdbg_breakop_t*)brake)->name);
} /* }}} */


static void php_phpdbg_destroy_bp_methods(void *brake) /* {{{ */
{
	zend_hash_destroy((HashTable*)brake);
} /* }}} */

static void php_phpdbg_destroy_bp_condition(void *data) /* {{{ */
{
	phpdbg_breakcond_t *brake = (phpdbg_breakcond_t*) data;

	if (brake) {
		if (brake->ops) {
			TSRMLS_FETCH();

			destroy_op_array(
					brake->ops TSRMLS_CC);
			efree(brake->ops);
		}
		efree((char*)brake->code);
	}
} /* }}} */

static void php_phpdbg_destroy_registered(void *data) /* {{{ */
{
	zend_function *function = (zend_function*) data;
	TSRMLS_FETCH();

	destroy_zend_function(
		function TSRMLS_CC);
} /* }}} */


static PHP_RINIT_FUNCTION(phpdbg) /* {{{ */
{
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_FILE],   8, NULL, php_phpdbg_destroy_bp_file, 0);
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_SYM], 8, NULL, php_phpdbg_destroy_bp_symbol, 0);
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_FUNCTION_OPLINE], 8, NULL, php_phpdbg_destroy_bp_methods, 0);
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_METHOD_OPLINE], 8, NULL, php_phpdbg_destroy_bp_methods, 0);
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_FILE_OPLINE], 8, NULL, php_phpdbg_destroy_bp_methods, 0);
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_OPLINE], 8, NULL, NULL, 0);
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_OPCODE], 8, NULL, php_phpdbg_destroy_bp_opcode, 0);
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_METHOD], 8, NULL, php_phpdbg_destroy_bp_methods, 0);
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_COND], 8, NULL, php_phpdbg_destroy_bp_condition, 0);
	zend_hash_init(&PHPDBG_G(bp)[PHPDBG_BREAK_MAP], 8, NULL, NULL, 0);

	zend_hash_init(&PHPDBG_G(seek), 8, NULL, NULL, 0);
	zend_hash_init(&PHPDBG_G(registered), 8, NULL, php_phpdbg_destroy_registered, 0);

	return SUCCESS;
} /* }}} */

static PHP_RSHUTDOWN_FUNCTION(phpdbg) /* {{{ */
{
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_FILE]);
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_SYM]);
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_FUNCTION_OPLINE]);
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_METHOD_OPLINE]);
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_FILE_OPLINE]);
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_OPLINE]);
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_OPCODE]);
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_METHOD]);
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_COND]);
	zend_hash_destroy(&PHPDBG_G(bp)[PHPDBG_BREAK_MAP]);
	zend_hash_destroy(&PHPDBG_G(seek));
	zend_hash_destroy(&PHPDBG_G(registered));
	zend_hash_destroy(&PHPDBG_G(file_sources));
	zend_hash_destroy(&PHPDBG_G(watchpoints));
	zend_llist_destroy(&PHPDBG_G(watchlist_mem));

	if (PHPDBG_G(buffer)) {
		efree(PHPDBG_G(buffer));
		PHPDBG_G(buffer) = NULL;
	}

	if (PHPDBG_G(exec)) {
		efree(PHPDBG_G(exec));
		PHPDBG_G(exec) = NULL;
	}

	if (PHPDBG_G(prompt)[0]) {
		free(PHPDBG_G(prompt)[0]);
	}
	if (PHPDBG_G(prompt)[1]) {
		free(PHPDBG_G(prompt)[1]);
	}

	PHPDBG_G(prompt)[0] = NULL;
	PHPDBG_G(prompt)[1] = NULL;

	if (PHPDBG_G(oplog)) {
		fclose(
				PHPDBG_G(oplog));
		PHPDBG_G(oplog) = NULL;
	}

	if (PHPDBG_G(ops)) {
		destroy_op_array(PHPDBG_G(ops) TSRMLS_CC);
		efree(PHPDBG_G(ops));
		PHPDBG_G(ops) = NULL;
	}

	return SUCCESS;
} /* }}} */

/* {{{ proto mixed phpdbg_exec(string context)
	Attempt to set the execution context for phpdbg
	If the execution context was set previously it is returned
	If the execution context was not set previously boolean true is returned
	If the request to set the context fails, boolean false is returned, and an E_WARNING raised */
static PHP_FUNCTION(phpdbg_exec)
{
	char *exec = NULL;
	int exec_len = 0;

	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &exec, &exec_len) == FAILURE) {
		return;
	}

	{
		struct stat sb;
		zend_bool result = 1;

		if (VCWD_STAT(exec, &sb) != FAILURE) {
			if (sb.st_mode & (S_IFREG|S_IFLNK)) {
				if (PHPDBG_G(exec)) {
					ZVAL_STRINGL(return_value, PHPDBG_G(exec), PHPDBG_G(exec_len), 1);
					efree(PHPDBG_G(exec));
					result = 0;
				}

				PHPDBG_G(exec) = estrndup(exec, exec_len);
				PHPDBG_G(exec_len) = exec_len;

				if (result)
					ZVAL_BOOL(return_value, 1);
			} else {
				zend_error(
					E_WARNING, "Failed to set execution context (%s), not a regular file or symlink", exec);
				ZVAL_BOOL(return_value, 0);
			}
		} else {
			zend_error(
				E_WARNING, "Failed to set execution context (%s) the file does not exist", exec);

			ZVAL_BOOL(return_value, 0);
		}
	}
} /* }}} */

/* {{{ proto void phpdbg_break([integer type, string expression])
    instructs phpdbg to insert a breakpoint at the next opcode */
static PHP_FUNCTION(phpdbg_break)
{
	if (ZEND_NUM_ARGS() > 0) {
		long type = 0;
		char *expr = NULL;
		int expr_len = 0;
		phpdbg_param_t param;

		if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ls", &type, &expr, &expr_len) == FAILURE) {
			return;
		}

		phpdbg_parse_param(expr, expr_len, &param TSRMLS_CC);
		phpdbg_do_break(&param TSRMLS_CC);
		phpdbg_clear_param(&param TSRMLS_CC);

	} else if (EG(current_execute_data) && EG(active_op_array)) {
		zend_ulong opline_num = (EG(current_execute_data)->opline -
				EG(active_op_array)->opcodes);

		phpdbg_set_breakpoint_opline_ex(
				&EG(active_op_array)->opcodes[opline_num+1] TSRMLS_CC);
	}
} /* }}} */

/* {{{ proto void phpdbg_clear(void)
   instructs phpdbg to clear breakpoints */
static PHP_FUNCTION(phpdbg_clear)
{
	zend_hash_clean(&PHPDBG_G(bp)[PHPDBG_BREAK_FILE]);
	zend_hash_clean(&PHPDBG_G(bp)[PHPDBG_BREAK_SYM]);
	zend_hash_clean(&PHPDBG_G(bp)[PHPDBG_BREAK_FUNCTION_OPLINE]);
	zend_hash_clean(&PHPDBG_G(bp)[PHPDBG_BREAK_METHOD_OPLINE]);
	zend_hash_clean(&PHPDBG_G(bp)[PHPDBG_BREAK_FILE_OPLINE]);
	zend_hash_clean(&PHPDBG_G(bp)[PHPDBG_BREAK_OPLINE]);
	zend_hash_clean(&PHPDBG_G(bp)[PHPDBG_BREAK_METHOD]);
	zend_hash_clean(&PHPDBG_G(bp)[PHPDBG_BREAK_COND]);
} /* }}} */

/* {{{ proto void phpdbg_color(integer element, string color) */
static PHP_FUNCTION(phpdbg_color)
{
	long element = 0L;
	char *color = NULL;
	size_t color_len = 0;

	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ls", &element, &color, &color_len) == FAILURE) {
		return;
	}

	switch (element) {
		case PHPDBG_COLOR_NOTICE:
		case PHPDBG_COLOR_ERROR:
		case PHPDBG_COLOR_PROMPT:
			phpdbg_set_color_ex(element, color, color_len TSRMLS_CC);
		break;

		default: zend_error(E_ERROR, "phpdbg detected an incorrect color constant");
	}
} /* }}} */

/* {{{ proto void phpdbg_prompt(string prompt) */
static PHP_FUNCTION(phpdbg_prompt)
{
	char *prompt = NULL;
	size_t prompt_len = 0;

	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &prompt, &prompt_len) == FAILURE) {
		return;
	}

	phpdbg_set_prompt(prompt TSRMLS_CC);
} /* }}} */

ZEND_BEGIN_ARG_INFO_EX(phpdbg_break_arginfo, 0, 0, 0)
	ZEND_ARG_INFO(0, type)
	ZEND_ARG_INFO(0, expression)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(phpdbg_color_arginfo, 0, 0, 0)
	ZEND_ARG_INFO(0, element)
	ZEND_ARG_INFO(0, color)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(phpdbg_prompt_arginfo, 0, 0, 0)
	ZEND_ARG_INFO(0, string)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(phpdbg_exec_arginfo, 0, 0, 0)
	ZEND_ARG_INFO(0, context)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(phpdbg_clear_arginfo, 0, 0, 0)
ZEND_END_ARG_INFO()

zend_function_entry phpdbg_user_functions[] = {
	PHP_FE(phpdbg_clear, phpdbg_clear_arginfo)
	PHP_FE(phpdbg_break, phpdbg_break_arginfo)
	PHP_FE(phpdbg_exec,  phpdbg_exec_arginfo)
	PHP_FE(phpdbg_color, phpdbg_color_arginfo)
	PHP_FE(phpdbg_prompt, phpdbg_prompt_arginfo)
#ifdef  PHP_FE_END
	PHP_FE_END
#else
	{NULL,NULL,NULL}
#endif
};

static zend_module_entry sapi_phpdbg_module_entry = {
	STANDARD_MODULE_HEADER,
	PHPDBG_NAME,
	phpdbg_user_functions,
	PHP_MINIT(phpdbg),
	NULL,
	PHP_RINIT(phpdbg),
	PHP_RSHUTDOWN(phpdbg),
	NULL,
	PHPDBG_VERSION,
	STANDARD_MODULE_PROPERTIES
};

static inline int php_sapi_phpdbg_module_startup(sapi_module_struct *module) /* {{{ */
{
	if (php_module_startup(module, &sapi_phpdbg_module_entry, 1) == FAILURE) {
		return FAILURE;
	}

	phpdbg_booted=1;

	return SUCCESS;
} /* }}} */

static char* php_sapi_phpdbg_read_cookies(TSRMLS_D) /* {{{ */
{
	return NULL;
} /* }}} */

static int php_sapi_phpdbg_header_handler(sapi_header_struct *h, sapi_header_op_enum op, sapi_headers_struct *s TSRMLS_DC) /* {{{ */
{
	return 0;
}
/* }}} */

static int php_sapi_phpdbg_send_headers(sapi_headers_struct *sapi_headers TSRMLS_DC) /* {{{ */
{
	/* We do nothing here, this function is needed to prevent that the fallback
	 * header handling is called. */
	return SAPI_HEADER_SENT_SUCCESSFULLY;
}
/* }}} */

static void php_sapi_phpdbg_send_header(sapi_header_struct *sapi_header, void *server_context TSRMLS_DC) /* {{{ */
{
}
/* }}} */

static void php_sapi_phpdbg_log_message(char *message TSRMLS_DC) /* {{{ */
{
	/*
	* We must not request TSRM before being boot
	*/
	if (phpdbg_booted) {
		phpdbg_error("php", "msg=\"%s\"", "%s", message);

		switch (PG(last_error_type)) {
			case E_ERROR:
			case E_CORE_ERROR:
			case E_COMPILE_ERROR:
			case E_USER_ERROR:
			case E_PARSE:
			case E_RECOVERABLE_ERROR:
				if (!(PHPDBG_G(flags) & PHPDBG_IN_EVAL)) {
					phpdbg_list_file(
						zend_get_executed_filename(TSRMLS_C),
						3,
						zend_get_executed_lineno(TSRMLS_C)-1,
						zend_get_executed_lineno(TSRMLS_C)
						TSRMLS_CC
					);
				}

				do {
					switch (phpdbg_interactive(1 TSRMLS_CC)) {
						case PHPDBG_LEAVE:
						case PHPDBG_FINISH:
						case PHPDBG_UNTIL:
						case PHPDBG_NEXT:
							return;
					}
				} while (!(PHPDBG_G(flags) & PHPDBG_IS_QUITTING));

		}
	} else fprintf(stdout, "%s\n", message);
}
/* }}} */

static int php_sapi_phpdbg_deactivate(TSRMLS_D) /* {{{ */
{
	fflush(stdout);
	if(SG(request_info).argv0) {
		free(SG(request_info).argv0);
		SG(request_info).argv0 = NULL;
	}
	return SUCCESS;
}
/* }}} */

static void php_sapi_phpdbg_register_vars(zval *track_vars_array TSRMLS_DC) /* {{{ */
{
	unsigned int len;
	char   *docroot = "";

	/* In phpdbg mode, we consider the environment to be a part of the server variables
	*/
	php_import_environment_variables(track_vars_array TSRMLS_CC);

	if (PHPDBG_G(exec)) {
		len = PHPDBG_G(exec_len);
		if (sapi_module.input_filter(PARSE_SERVER, "PHP_SELF",
					&PHPDBG_G(exec), PHPDBG_G(exec_len), &len TSRMLS_CC)) {
			php_register_variable("PHP_SELF", PHPDBG_G(exec),
					track_vars_array TSRMLS_CC);
		}
		if (sapi_module.input_filter(PARSE_SERVER, "SCRIPT_NAME",
					&PHPDBG_G(exec), PHPDBG_G(exec_len), &len TSRMLS_CC)) {
			php_register_variable("SCRIPT_NAME", PHPDBG_G(exec),
					track_vars_array TSRMLS_CC);
		}

		if (sapi_module.input_filter(PARSE_SERVER, "SCRIPT_FILENAME",
					&PHPDBG_G(exec), PHPDBG_G(exec_len), &len TSRMLS_CC)) {
			php_register_variable("SCRIPT_FILENAME", PHPDBG_G(exec),
					track_vars_array TSRMLS_CC);
		}
		if (sapi_module.input_filter(PARSE_SERVER, "PATH_TRANSLATED",
					&PHPDBG_G(exec), PHPDBG_G(exec_len), &len TSRMLS_CC)) {
			php_register_variable("PATH_TRANSLATED", PHPDBG_G(exec),
					track_vars_array TSRMLS_CC);
		}
	}

	/* any old docroot will doo */
	len = 0U;
	if (sapi_module.input_filter(PARSE_SERVER, "DOCUMENT_ROOT",
				&docroot, len, &len TSRMLS_CC)) {
		php_register_variable("DOCUMENT_ROOT", docroot, track_vars_array TSRMLS_CC);
	}
}
/* }}} */

static inline int php_sapi_phpdbg_ub_write(const char *message, unsigned int length TSRMLS_DC) /* {{{ */
{
	if (PHPDBG_G(socket_fd) != -1 && !(PHPDBG_G(flags) & PHPDBG_IS_INTERACTIVE)) {
		send(PHPDBG_G(socket_fd), message, length, 0);
	}
	return phpdbg_script(P_STDOUT, "%.*s", length, message);
} /* }}} */

/* beginning of struct, see main/streams/plain_wrapper.c line 111 */
typedef struct {
	FILE *file;
	int fd;
} php_stdio_stream_data;

static size_t phpdbg_stdiop_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC) {
	php_stdio_stream_data *data = (php_stdio_stream_data*)stream->abstract;

	while (data->fd >= 0) {
		struct stat stat[3];
		memset(stat, 0, sizeof(stat));
		if (((fstat(fileno(stderr), &stat[2]) < 0) & (fstat(fileno(stdout), &stat[0]) < 0)) | (fstat(data->fd, &stat[1]) < 0)) {
			break;
		}

		if (stat[0].st_dev == stat[1].st_dev && stat[0].st_ino == stat[1].st_ino) {
			phpdbg_script(P_STDOUT, "%.*s", (int) count, buf);
			return count;
		}
		if (stat[2].st_dev == stat[1].st_dev && stat[2].st_ino == stat[1].st_ino) {
			phpdbg_script(P_STDERR, "%.*s", (int) count, buf);
			return count;
		}
		break;
	}

	return PHPDBG_G(php_stdiop_write)(stream, buf, count TSRMLS_CC);
}

#if PHP_VERSION_ID >= 50700
static inline void php_sapi_phpdbg_flush(void *context TSRMLS_DC)  /* {{{ */
{
#else
static inline void php_sapi_phpdbg_flush(void *context)  /* {{{ */
{
	TSRMLS_FETCH();
#endif

	if (!phpdbg_active_sigsafe_mem(TSRMLS_C)) {
		fflush(PHPDBG_G(io)[PHPDBG_STDOUT].ptr);
	}
} /* }}} */

/* copied from sapi/cli/php_cli.c cli_register_file_handles */
static void phpdbg_register_file_handles(TSRMLS_D) /* {{{ */
{
	zval *zin, *zout, *zerr;
	php_stream *s_in, *s_out, *s_err;
	php_stream_context *sc_in=NULL, *sc_out=NULL, *sc_err=NULL;
	zend_constant ic, oc, ec;

	MAKE_STD_ZVAL(zin);
	MAKE_STD_ZVAL(zout);
	MAKE_STD_ZVAL(zerr);

	s_in  = php_stream_open_wrapper_ex("php://stdin",  "rb", 0, NULL, sc_in);
	s_out = php_stream_open_wrapper_ex("php://stdout", "wb", 0, NULL, sc_out);
	s_err = php_stream_open_wrapper_ex("php://stderr", "wb", 0, NULL, sc_err);

	if (s_in==NULL || s_out==NULL || s_err==NULL) {
		FREE_ZVAL(zin);
		FREE_ZVAL(zout);
		FREE_ZVAL(zerr);
		if (s_in) php_stream_close(s_in);
		if (s_out) php_stream_close(s_out);
		if (s_err) php_stream_close(s_err);
		return;
	}

#if PHP_DEBUG
	/* do not close stdout and stderr */
	s_out->flags |= PHP_STREAM_FLAG_NO_CLOSE;
	s_err->flags |= PHP_STREAM_FLAG_NO_CLOSE;
#endif

	php_stream_to_zval(s_in,  zin);
	php_stream_to_zval(s_out, zout);
	php_stream_to_zval(s_err, zerr);

	ic.value = *zin;
	ic.flags = CONST_CS;
	ic.name = zend_strndup(ZEND_STRL("STDIN"));
	ic.name_len = sizeof("STDIN");
	ic.module_number = 0;
	zend_register_constant(&ic TSRMLS_CC);

	oc.value = *zout;
	oc.flags = CONST_CS;
	oc.name = zend_strndup(ZEND_STRL("STDOUT"));
	oc.name_len = sizeof("STDOUT");
	oc.module_number = 0;
	zend_register_constant(&oc TSRMLS_CC);

	ec.value = *zerr;
	ec.flags = CONST_CS;
	ec.name = zend_strndup(ZEND_STRL("STDERR"));
	ec.name_len = sizeof("STDERR");
	ec.module_number = 0;
	zend_register_constant(&ec TSRMLS_CC);

	FREE_ZVAL(zin);
	FREE_ZVAL(zout);
	FREE_ZVAL(zerr);
}
/* }}} */

/* {{{ sapi_module_struct phpdbg_sapi_module
*/
static sapi_module_struct phpdbg_sapi_module = {
	"phpdbg",                       /* name */
	"phpdbg",                       /* pretty name */

	php_sapi_phpdbg_module_startup, /* startup */
	php_module_shutdown_wrapper,    /* shutdown */

	NULL,                           /* activate */
	php_sapi_phpdbg_deactivate,     /* deactivate */

	php_sapi_phpdbg_ub_write,       /* unbuffered write */
	php_sapi_phpdbg_flush,          /* flush */
	NULL,                           /* get uid */
	NULL,                           /* getenv */

	php_error,                      /* error handler */

	php_sapi_phpdbg_header_handler, /* header handler */
	php_sapi_phpdbg_send_headers,   /* send headers handler */
	php_sapi_phpdbg_send_header,    /* send header handler */

	NULL,                           /* read POST data */
	php_sapi_phpdbg_read_cookies,   /* read Cookies */

	php_sapi_phpdbg_register_vars,  /* register server variables */
	php_sapi_phpdbg_log_message,    /* Log message */
	NULL,                           /* Get request time */
	NULL,                           /* Child terminate */
	STANDARD_SAPI_MODULE_PROPERTIES
};
/* }}} */

const opt_struct OPTIONS[] = { /* {{{ */
	{'c', 1, "ini path override"},
	{'d', 1, "define ini entry on command line"},
	{'n', 0, "no php.ini"},
	{'z', 1, "load zend_extension"},
	/* phpdbg options */
	{'q', 0, "no banner"},
	{'v', 0, "disable quietness"},
	{'s', 0, "enable stepping"},
	{'b', 0, "boring colours"},
	{'i', 1, "specify init"},
	{'I', 0, "ignore init"},
	{'O', 1, "opline log"},
	{'r', 0, "run"},
	{'E', 0, "step-through-eval"},
	{'S', 1, "sapi-name"},
	{'l', 1, "listen"},
	{'a', 1, "address-or-any"},
	{'x', 0, "xml output"},
	{'V', 0, "version"},
	{'-', 0, NULL}
}; /* }}} */

const char phpdbg_ini_hardcoded[] =
"html_errors=Off\n"
"register_argc_argv=On\n"
"implicit_flush=On\n"
"display_errors=Off\n"
"log_errors=On\n"
"max_execution_time=0\n"
"max_input_time=-1\n"
"error_log=\n\0";

/* overwriteable ini defaults must be set in phpdbg_ini_defaults() */
#define INI_DEFAULT(name, value) \
	Z_SET_REFCOUNT(tmp, 0); \
	Z_UNSET_ISREF(tmp); \
	ZVAL_STRINGL(&tmp, zend_strndup(value, sizeof(value)-1), sizeof(value)-1, 0); \
	zend_hash_update(configuration_hash, name, sizeof(name), &tmp, sizeof(zval), NULL);

void phpdbg_ini_defaults(HashTable *configuration_hash) /* {{{ */
{
	zval tmp;
	INI_DEFAULT("report_zend_debug", "0");
} /* }}} */

static void phpdbg_welcome(zend_bool cleaning TSRMLS_DC) /* {{{ */
{
	/* print blurb */
	if (!cleaning) {
		phpdbg_xml("<intros>");
		phpdbg_notice("intro", "version=\"%s\"", "Welcome to phpdbg, the interactive PHP debugger, v%s", PHPDBG_VERSION);
		phpdbg_writeln("intro", "help=\"help\"", "To get help using phpdbg type \"help\" and press enter");
		phpdbg_notice("intro", "report=\"%s\"", "Please report bugs to <%s>", PHPDBG_ISSUES);
		phpdbg_xml("</intros>");
	} else {
		if (!(PHPDBG_G(flags) & PHPDBG_WRITE_XML)) {
			phpdbg_notice(NULL, NULL, "Clean Execution Environment");
		}

		phpdbg_write("cleaninfo", "classes=\"%d\" functions=\"%d\" constants=\"%d\" includes=\"%d\"",
			"Classes              %d\n"
			"Functions            %d\n"
			"Constants            %d\n"
			"Includes             %d\n",
			zend_hash_num_elements(EG(class_table)),
			zend_hash_num_elements(EG(function_table)),
			zend_hash_num_elements(EG(zend_constants)),
			zend_hash_num_elements(&EG(included_files)));
	}
} /* }}} */

static inline void phpdbg_sigint_handler(int signo) /* {{{ */
{
	TSRMLS_FETCH();

	if (PHPDBG_G(flags) & PHPDBG_IS_INTERACTIVE) {
		/* we quit remote consoles on recv SIGINT */
		if (PHPDBG_G(flags) & PHPDBG_IS_REMOTE) {
			PHPDBG_G(flags) |= PHPDBG_IS_QUITTING;
			zend_bailout();
		}
	} else {
		/* set signalled only when not interactive */
		if (!(PHPDBG_G(flags) & PHPDBG_IS_INTERACTIVE)) {
			if (PHPDBG_G(flags) & PHPDBG_IS_SIGNALED) {
				char mem[PHPDBG_SIGSAFE_MEM_SIZE + 1];

				phpdbg_set_sigsafe_mem(mem TSRMLS_CC);
				zend_try {
					phpdbg_force_interruption(TSRMLS_C);
				} zend_end_try()
				phpdbg_clear_sigsafe_mem(TSRMLS_C);
				return;
			}
			PHPDBG_G(flags) |= PHPDBG_IS_SIGNALED;
		}
	}
} /* }}} */


static void phpdbg_remote_close(int socket, FILE *stream) {
	if (socket >= 0) {
		phpdbg_close_socket(socket);
	}

	if (stream) {
		fclose(stream);
	}
}

/* don't inline this, want to debug it easily, will inline when done */
static int phpdbg_remote_init(const char* address, unsigned short port, int server, int *socket, FILE **stream TSRMLS_DC) {
	phpdbg_remote_close(*socket, *stream);

	if (server < 0) {
		phpdbg_rlog(fileno(stderr), "Initializing connection on %s:%u failed", address, port);

		return FAILURE;
	}

	phpdbg_rlog(fileno(stderr), "accepting connections on %s:%u", address, port);
	{
		struct sockaddr_storage address;
		socklen_t size = sizeof(address);
		char buffer[20] = {0};
		/* XXX error checks */
		memset(&address, 0, size);
		*socket = accept(server, (struct sockaddr *) &address, &size);
		inet_ntop(AF_INET, &(((struct sockaddr_in *)&address)->sin_addr), buffer, sizeof(buffer));

		phpdbg_rlog(fileno(stderr), "connection established from %s", buffer);
	}

#ifndef _WIN32
	dup2(*socket, fileno(stdout));
	dup2(*socket, fileno(stdin));

	setbuf(stdout, NULL);

	*stream = fdopen(*socket, "r+");

	phpdbg_set_async_io(*socket);
#endif
	return SUCCESS;
}

#ifndef _WIN32
/* This function *strictly* assumes that SIGIO is *only* used on the remote connection stream */
void phpdbg_sigio_handler(int sig, siginfo_t *info, void *context) /* {{{ */
{
	int flags;
	size_t newlen;
	size_t i/*, last_nl*/;
	TSRMLS_FETCH();

//	if (!(info->si_band & POLLIN)) {
//		return; /* Not interested in writeablility etc., just interested in incoming data */
//	}

	/* only non-blocking reading, avoid non-blocking writing */
	flags = fcntl(PHPDBG_G(io)[PHPDBG_STDIN].fd, F_GETFL, 0);
	fcntl(PHPDBG_G(io)[PHPDBG_STDIN].fd, F_SETFL, flags | O_NONBLOCK);

	do {
		char mem[PHPDBG_SIGSAFE_MEM_SIZE + 1];
		size_t off = 0;

		if ((newlen = recv(PHPDBG_G(io)[PHPDBG_STDIN].fd, mem, PHPDBG_SIGSAFE_MEM_SIZE, MSG_PEEK)) == (size_t) -1) {
			break;
		}
		for (i = 0; i < newlen; i++) {
			switch (mem[off + i]) {
				case '\x03': /* ^C char */
					if (PHPDBG_G(flags) & PHPDBG_IS_INTERACTIVE) {
						break; /* or quit ??? */
					}
					if (PHPDBG_G(flags) & PHPDBG_IS_SIGNALED) {
						phpdbg_set_sigsafe_mem(mem TSRMLS_CC);
						zend_try {
							phpdbg_force_interruption(TSRMLS_C);
						} zend_end_try();
						phpdbg_clear_sigsafe_mem(TSRMLS_C);
						break;
					}
					if (!(PHPDBG_G(flags) & PHPDBG_IS_INTERACTIVE)) {
						PHPDBG_G(flags) |= PHPDBG_IS_SIGNALED;
					}
					break;
/*				case '\n':
					zend_llist_add_element(PHPDBG_G(stdin), strndup()
					last_nl = PHPDBG_G(stdin_buf).len + i;
					break;
*/			}
		}
		off += i;
	} while (0);


	fcntl(PHPDBG_G(io)[PHPDBG_STDIN].fd, F_SETFL, flags);
} /* }}} */

void phpdbg_signal_handler(int sig, siginfo_t *info, void *context) /* {{{ */
{
	int is_handled = FAILURE;
	TSRMLS_FETCH();

	switch (sig) {
		case SIGBUS:
		case SIGSEGV:
			if (PHPDBG_G(sigsegv_bailout)) {
				LONGJMP(*PHPDBG_G(sigsegv_bailout), FAILURE);
			}
			is_handled = phpdbg_watchpoint_segfault_handler(info, context TSRMLS_CC);
			if (is_handled == FAILURE) {
#ifdef ZEND_SIGNALS
				zend_sigaction(sig, &PHPDBG_G(old_sigsegv_signal), NULL TSRMLS_CC);
#else
				sigaction(sig, &PHPDBG_G(old_sigsegv_signal), NULL);
#endif
			}
			break;
	}

} /* }}} */
#endif

static inline zend_mm_heap *phpdbg_mm_get_heap() /* {{{ */
{
	zend_mm_heap *mm_heap;

	TSRMLS_FETCH();

	mm_heap = zend_mm_set_heap(NULL TSRMLS_CC);
	zend_mm_set_heap(mm_heap TSRMLS_CC);

	return mm_heap;
} /* }}} */

void *phpdbg_malloc_wrapper(size_t size) /* {{{ */
{
	return zend_mm_alloc(phpdbg_mm_get_heap(), size);
} /* }}} */

void phpdbg_free_wrapper(void *p) /* {{{ */
{
	zend_mm_free(phpdbg_mm_get_heap(), p);
} /* }}} */

void *phpdbg_realloc_wrapper(void *ptr, size_t size) /* {{{ */
{
	return zend_mm_realloc(phpdbg_mm_get_heap(), ptr, size);
} /* }}} */

int main(int argc, char **argv) /* {{{ */
{
	sapi_module_struct *phpdbg = &phpdbg_sapi_module;
	char *sapi_name;
	char *ini_entries;
	int   ini_entries_len;
	char **zend_extensions = NULL;
	zend_ulong zend_extensions_len = 0L;
	zend_bool ini_ignore;
	char *ini_override;
	char *exec;
	size_t exec_len;
	char *init_file;
	size_t init_file_len;
	zend_bool init_file_default;
	char *oplog_file;
	size_t oplog_file_len;
	zend_ulong flags;
	char *php_optarg;
	int php_optind, opt, show_banner = 1;
	long cleaning = 0;
	zend_bool remote = 0;
	int run = 0;
	int step = 0;

#ifdef _WIN32
	char *bp_tmp_file = NULL;
#else
	char bp_tmp_file[] = "/tmp/phpdbg.XXXXXX";
#endif

	char *address;
	int listen = -1;
	int server = -1;
	int socket = -1;
	FILE* stream = NULL;

#ifdef ZTS
	void ***tsrm_ls;
#endif

#ifndef _WIN32
	struct sigaction sigio_struct;
	struct sigaction signal_struct;
	signal_struct.sa_sigaction = phpdbg_signal_handler;
	signal_struct.sa_flags = SA_SIGINFO | SA_NODEFER;
	sigio_struct.sa_sigaction = phpdbg_sigio_handler;
	sigio_struct.sa_flags = SA_SIGINFO;
#endif

	address = strdup("127.0.0.1");

#ifdef PHP_WIN32
	_fmode = _O_BINARY;                 /* sets default for file streams to binary */
	setmode(_fileno(stdin), O_BINARY);  /* make the stdio mode be binary */
	setmode(_fileno(stdout), O_BINARY); /* make the stdio mode be binary */
	setmode(_fileno(stderr), O_BINARY); /* make the stdio mode be binary */
#endif

#ifdef ZTS
	tsrm_startup(1, 1, 0, NULL);

	tsrm_ls = ts_resource(0);
#endif

phpdbg_main:
	if (!cleaning) {
	
#ifdef _WIN32
		bp_tmp_file = malloc(L_tmpnam);

		if (bp_tmp_file) {
			if (!tmpnam(bp_tmp_file)) {
				free(bp_tmp_file);
				bp_tmp_file = NULL;
			}
		}

		if (!bp_tmp_file) {
			phpdbg_error("tmpfile", "", "Unable to create temporary file");
			return 1;
		}
#else
		if (!mkstemp(bp_tmp_file)) {
			memset(bp_tmp_file, 0, sizeof(bp_tmp_file));
		}
#endif

	}
	ini_entries = NULL;
	ini_entries_len = 0;
	ini_ignore = 0;
	ini_override = NULL;
	zend_extensions = NULL;
	zend_extensions_len = 0L;
	exec = NULL;
	exec_len = 0;
	init_file = NULL;
	init_file_len = 0;
	init_file_default = 1;
	oplog_file = NULL;
	oplog_file_len = 0;
	flags = PHPDBG_DEFAULT_FLAGS;
	php_optarg = NULL;
	php_optind = 1;
	opt = 0;
	run = 0;
	step = 0;
	sapi_name = NULL;

	while ((opt = php_getopt(argc, argv, OPTIONS, &php_optarg, &php_optind, 0, 2)) != -1) {
		switch (opt) {
			case 'r':
				run++;
				break;
			case 'n':
				ini_ignore = 1;
				break;
			case 'c':
				if (ini_override) {
					free(ini_override);
				}
				ini_override = strdup(php_optarg);
				break;
			case 'd': {
				int len = strlen(php_optarg);
				char *val;

				if ((val = strchr(php_optarg, '='))) {
				  val++;
				  if (!isalnum(*val) && *val != '"' && *val != '\'' && *val != '\0') {
					  ini_entries = realloc(ini_entries, ini_entries_len + len + sizeof("\"\"\n\0"));
					  memcpy(ini_entries + ini_entries_len, php_optarg, (val - php_optarg));
					  ini_entries_len += (val - php_optarg);
					  memcpy(ini_entries + ini_entries_len, "\"", 1);
					  ini_entries_len++;
					  memcpy(ini_entries + ini_entries_len, val, len - (val - php_optarg));
					  ini_entries_len += len - (val - php_optarg);
					  memcpy(ini_entries + ini_entries_len, "\"\n\0", sizeof("\"\n\0"));
					  ini_entries_len += sizeof("\n\0\"") - 2;
				  } else {
					  ini_entries = realloc(ini_entries, ini_entries_len + len + sizeof("\n\0"));
					  memcpy(ini_entries + ini_entries_len, php_optarg, len);
					  memcpy(ini_entries + ini_entries_len + len, "\n\0", sizeof("\n\0"));
					  ini_entries_len += len + sizeof("\n\0") - 2;
				  }
				} else {
				  ini_entries = realloc(ini_entries, ini_entries_len + len + sizeof("=1\n\0"));
				  memcpy(ini_entries + ini_entries_len, php_optarg, len);
				  memcpy(ini_entries + ini_entries_len + len, "=1\n\0", sizeof("=1\n\0"));
				  ini_entries_len += len + sizeof("=1\n\0") - 2;
				}
			} break;

			case 'z':
				zend_extensions_len++;
				if (zend_extensions) {
					zend_extensions = realloc(zend_extensions, sizeof(char*) * zend_extensions_len);
				} else zend_extensions = malloc(sizeof(char*) * zend_extensions_len);
				zend_extensions[zend_extensions_len-1] = strdup(php_optarg);
			break;

			/* begin phpdbg options */

			case 'S': { /* set SAPI name */
				if (sapi_name) {
					free(sapi_name);
				}
				sapi_name = strdup(php_optarg);
			} break;

			case 'I': { /* ignore .phpdbginit */
				init_file_default = 0;
			} break;

			case 'i': { /* set init file */
				if (init_file) {
					free(init_file);
				}

				init_file_len = strlen(php_optarg);
				if (init_file_len) {
					init_file = strdup(php_optarg);
				}
			} break;

			case 'O': { /* set oplog output */
				oplog_file_len = strlen(php_optarg);
				if (oplog_file_len) {
					oplog_file = strdup(php_optarg);
				}
			} break;

			case 'v': /* set quietness off */
				flags &= ~PHPDBG_IS_QUIET;
			break;

			case 's': /* set stepping on */
				step = 1;
			break;

			case 'E': /* stepping through eval on */
				flags |= PHPDBG_IS_STEPONEVAL;
			break;

			case 'b': /* set colours off */
				flags &= ~PHPDBG_IS_COLOURED;
			break;

			case 'q': /* hide banner */
				show_banner = 0;
			break;

			/* if you pass a listen port, we will read and write on listen port */
			case 'l': /* set listen ports */
				if (sscanf(php_optarg, "%d", &listen) != 1) {
					listen = 8000;
				}
				break;

			case 'a': { /* set bind address */
				free(address);
				if (!php_optarg) {
					address = strdup("*");
				} else address = strdup(php_optarg);
			} break;

			case 'x':
				flags |= PHPDBG_WRITE_XML;
			break;

			case 'V': {
				sapi_startup(phpdbg);
				phpdbg->startup(phpdbg);
				printf(
					"phpdbg %s (built: %s %s)\nPHP %s, Copyright (c) 1997-2014 The PHP Group\n%s",
					PHPDBG_VERSION,
					__DATE__,
					__TIME__,
					PHP_VERSION,
					get_zend_version()
				);
				sapi_deactivate(TSRMLS_C);
				sapi_shutdown();
				return 0;
			} break;
		}
	}
	
	/* set exec if present on command line */
	if ((argc > php_optind) && (strcmp(argv[php_optind-1],"--") != SUCCESS))
	{
		exec_len = strlen(argv[php_optind]);
		if (exec_len) {
			if (exec) {
				free(exec);
			}
			exec = strdup(argv[php_optind]);
		}
		php_optind++;
	}

	if (sapi_name) {
		phpdbg->name = sapi_name;
	}

	phpdbg->ini_defaults = phpdbg_ini_defaults;
	phpdbg->phpinfo_as_text = 1;
	phpdbg->php_ini_ignore_cwd = 1;

	sapi_startup(phpdbg);

	phpdbg->executable_location = argv[0];
	phpdbg->phpinfo_as_text = 1;
	phpdbg->php_ini_ignore = ini_ignore;
	phpdbg->php_ini_path_override = ini_override;

	if (ini_entries) {
		ini_entries = realloc(ini_entries, ini_entries_len + sizeof(phpdbg_ini_hardcoded));
		memmove(ini_entries + sizeof(phpdbg_ini_hardcoded) - 2, ini_entries, ini_entries_len + 1);
		memcpy(ini_entries, phpdbg_ini_hardcoded, sizeof(phpdbg_ini_hardcoded) - 2);
	} else {
		ini_entries = malloc(sizeof(phpdbg_ini_hardcoded));
		memcpy(ini_entries, phpdbg_ini_hardcoded, sizeof(phpdbg_ini_hardcoded));
	}
	ini_entries_len += sizeof(phpdbg_ini_hardcoded) - 2;

	if (zend_extensions_len) {
		zend_ulong zend_extension = 0L;

		while (zend_extension < zend_extensions_len) {
			const char *ze = zend_extensions[zend_extension];
			size_t ze_len = strlen(ze);

			ini_entries = realloc(
				ini_entries, ini_entries_len + (ze_len + (sizeof("zend_extension=\n"))));
			memcpy(&ini_entries[ini_entries_len], "zend_extension=", (sizeof("zend_extension=\n")-1));
			ini_entries_len += (sizeof("zend_extension=")-1);
			memcpy(&ini_entries[ini_entries_len], ze, ze_len);
			ini_entries_len += ze_len;
			memcpy(&ini_entries[ini_entries_len], "\n", (sizeof("\n") - 1));

			free(zend_extensions[zend_extension]);
			zend_extension++;
		}

		free(zend_extensions);
	}

	phpdbg->ini_entries = ini_entries;

	if (phpdbg->startup(phpdbg) == SUCCESS) {
#ifdef _WIN32
    EXCEPTION_POINTERS *xp;
    __try {
#endif
		zend_mm_heap *mm_heap;

	/* setup remote server if necessary */
	if (!cleaning && listen > 0) {
		server = phpdbg_open_socket(address, listen TSRMLS_CC);
		if (-1 > server || phpdbg_remote_init(address, listen, server, &socket, &stream TSRMLS_CC) == FAILURE) {
			exit(0);
		}

#ifndef _WIN32
		sigaction(SIGIO, &sigio_struct, NULL);
#endif

		/* set remote flag to stop service shutting down upon quit */
		remote = 1;
	}

		mm_heap = phpdbg_mm_get_heap();

		if (mm_heap->use_zend_alloc) {
			mm_heap->_malloc = phpdbg_malloc_wrapper;
			mm_heap->_realloc = phpdbg_realloc_wrapper;
			mm_heap->_free = phpdbg_free_wrapper;
			mm_heap->use_zend_alloc = 0;
		}

		zend_activate(TSRMLS_C);

		phpdbg_init_list(TSRMLS_C);

		PHPDBG_G(original_free_function) = mm_heap->_free;
		mm_heap->_free = phpdbg_watch_efree;

		phpdbg_setup_watchpoints(TSRMLS_C);

#if defined(ZEND_SIGNALS) && !defined(_WIN32)
		zend_try {
			zend_signal_activate(TSRMLS_C);
		} zend_end_try();
#endif

#if defined(ZEND_SIGNALS) && !defined(_WIN32)
		zend_try { zend_sigaction(SIGSEGV, &signal_struct, &PHPDBG_G(old_sigsegv_signal) TSRMLS_CC); } zend_end_try();
		zend_try { zend_sigaction(SIGBUS, &signal_struct, &PHPDBG_G(old_sigsegv_signal) TSRMLS_CC); } zend_end_try();
#elif !defined(_WIN32)
		sigaction(SIGSEGV, &signal_struct, &PHPDBG_G(old_sigsegv_signal));
		sigaction(SIGBUS, &signal_struct, &PHPDBG_G(old_sigsegv_signal));
#endif

		PHPDBG_G(sapi_name_ptr) = sapi_name;

		php_output_activate(TSRMLS_C);
		php_output_deactivate(TSRMLS_C);

		php_output_activate(TSRMLS_C);

		if (php_request_startup(TSRMLS_C) == SUCCESS) {
			int i;

			SG(request_info).argc = argc - php_optind + 1;
			SG(request_info).argv = emalloc(SG(request_info).argc * sizeof(char *));
			for (i = SG(request_info).argc; --i;) {
				SG(request_info).argv[i] = estrdup(argv[php_optind - 1 + i]);
			}
			SG(request_info).argv[i] = exec ? estrndup(exec, exec_len) : estrdup("");

			php_hash_environment(TSRMLS_C);
		}

		/* do not install sigint handlers for remote consoles */
		/* sending SIGINT then provides a decent way of shutting down the server */
#ifndef _WIN32
		if (listen < 0) {
#endif
#if defined(ZEND_SIGNALS) && !defined(_WIN32)
			zend_try { zend_signal(SIGINT, phpdbg_sigint_handler TSRMLS_CC); } zend_end_try();
#else
			signal(SIGINT, phpdbg_sigint_handler);
#endif
#ifndef _WIN32
		}
#endif

		PG(modules_activated) = 0;

		/* set flags from command line */
		PHPDBG_G(flags) = flags;

		/* setup io here */
		if (remote) {
			PHPDBG_G(flags) |= PHPDBG_IS_REMOTE;
#ifndef _WIN32
			signal(SIGPIPE, SIG_IGN);
#endif
		}

#ifndef _WIN32
		PHPDBG_G(io)[PHPDBG_STDIN].ptr = stdin;
		PHPDBG_G(io)[PHPDBG_STDIN].fd = fileno(stdin);
		PHPDBG_G(io)[PHPDBG_STDOUT].ptr = stdout;
		PHPDBG_G(io)[PHPDBG_STDOUT].fd = fileno(stdout);
#else
		/* XXX this is a complete mess here with FILE/fd/SOCKET,
			we should let only one to survive probably. Need 
			a clean separation whether it's a remote or local
			prompt. And what is supposed to go as user interaction,
			error log, etc. */
		if (remote) {
			PHPDBG_G(io)[PHPDBG_STDIN].ptr = stdin;
			PHPDBG_G(io)[PHPDBG_STDIN].fd = socket;
			PHPDBG_G(io)[PHPDBG_STDOUT].ptr = stdout;
			PHPDBG_G(io)[PHPDBG_STDOUT].fd = socket;
		} else {
			PHPDBG_G(io)[PHPDBG_STDIN].ptr = stdin;
			PHPDBG_G(io)[PHPDBG_STDIN].fd = fileno(stdin);
			PHPDBG_G(io)[PHPDBG_STDOUT].ptr = stdout;
			PHPDBG_G(io)[PHPDBG_STDOUT].fd = fileno(stdout);
		}
#endif
		PHPDBG_G(io)[PHPDBG_STDERR].ptr = stderr;
		PHPDBG_G(io)[PHPDBG_STDERR].fd = fileno(stderr);

#ifndef _WIN32
		PHPDBG_G(php_stdiop_write) = php_stream_stdio_ops.write;
		php_stream_stdio_ops.write = phpdbg_stdiop_write;
#endif

		if (exec) { /* set execution context */
			PHPDBG_G(exec) = phpdbg_resolve_path(exec TSRMLS_CC);
			PHPDBG_G(exec_len) = strlen(PHPDBG_G(exec));

			free(exec);
		}

		if (oplog_file) { /* open oplog */
			PHPDBG_G(oplog) = fopen(oplog_file, "w+");
			if (!PHPDBG_G(oplog)) {
				phpdbg_error("oplog", "path=\"%s\"", "Failed to open oplog %s", oplog_file);
			}
			free(oplog_file);
		}

		/* set default colors */
		phpdbg_set_color_ex(PHPDBG_COLOR_PROMPT,  PHPDBG_STRL("white-bold") TSRMLS_CC);
		phpdbg_set_color_ex(PHPDBG_COLOR_ERROR,   PHPDBG_STRL("red-bold") TSRMLS_CC);
		phpdbg_set_color_ex(PHPDBG_COLOR_NOTICE,  PHPDBG_STRL("green") TSRMLS_CC);

		/* set default prompt */
		phpdbg_set_prompt(PHPDBG_DEFAULT_PROMPT TSRMLS_CC);

		/* Make stdin, stdout and stderr accessible from PHP scripts */
		phpdbg_register_file_handles(TSRMLS_C);

		if (show_banner) {
			/* print blurb */
			phpdbg_welcome((cleaning > 0) TSRMLS_CC);
		}

		/* auto compile */
		if (PHPDBG_G(exec)) {
			phpdbg_compile(TSRMLS_C);
		}

		/* initialize from file */
		PHPDBG_G(flags) |= PHPDBG_IS_INITIALIZING;
		zend_try {
			phpdbg_init(init_file, init_file_len, init_file_default TSRMLS_CC);
			phpdbg_try_file_init(bp_tmp_file, strlen(bp_tmp_file), 0 TSRMLS_CC);
		} zend_end_try();
		PHPDBG_G(flags) &= ~PHPDBG_IS_INITIALIZING;
		
		/* quit if init says so */
		if (PHPDBG_G(flags) & PHPDBG_IS_QUITTING) {
			goto phpdbg_out;
		}

		/* step from here, not through init */
		if (step) {
			PHPDBG_G(flags) |= PHPDBG_IS_STEPPING;
		}

		if (run) {
			/* no need to try{}, run does it ... */
			PHPDBG_COMMAND_HANDLER(run)(NULL TSRMLS_CC);
			if (run > 1) {
				/* if -r is on the command line more than once just quit */
				goto phpdbg_out;
			}
		}

phpdbg_interact:
		/* phpdbg main() */
		do {
			zend_try {
				phpdbg_interactive(1 TSRMLS_CC);
			} zend_catch {
				if ((PHPDBG_G(flags) & PHPDBG_IS_CLEANING)) {
					FILE *bp_tmp_fp = fopen(bp_tmp_file, "w");
					phpdbg_export_breakpoints(bp_tmp_fp TSRMLS_CC);
					fclose(bp_tmp_fp);
					cleaning = 1;
				} else {
					cleaning = 0;
				}

				if (!cleaning) {
					/* remote client disconnected */
					if ((PHPDBG_G(flags) & PHPDBG_IS_DISCONNECTED)) {
					
						if (PHPDBG_G(flags) & PHPDBG_IS_REMOTE) {
							/* renegociate connections */
							phpdbg_remote_init(address, listen, server, &socket, &stream TSRMLS_CC);
				
							/* set streams */
							if (stream) {
								PHPDBG_G(flags) &= ~PHPDBG_IS_QUITTING;
							}
				
							/* this must be forced */
							CG(unclean_shutdown) = 0;
						} else {
							/* local consoles cannot disconnect, ignore EOF */
							PHPDBG_G(flags) &= ~PHPDBG_IS_DISCONNECTED;
						}
					}
				}
			} zend_end_try();
		} while(!cleaning && !(PHPDBG_G(flags) & PHPDBG_IS_QUITTING));
		
		/* this must be forced */
		CG(unclean_shutdown) = 0;
		
		/* this is just helpful */
		PG(report_memleaks) = 0;
		
phpdbg_out:
		if ((PHPDBG_G(flags) & PHPDBG_IS_DISCONNECTED)) {
			PHPDBG_G(flags) &= ~PHPDBG_IS_DISCONNECTED;
			goto phpdbg_interact;
		}

#ifdef _WIN32
	} __except(phpdbg_exception_handler_win32(xp = GetExceptionInformation())) {
		phpdbg_error("segfault", "", "Access violation (Segementation fault) encountered\ntrying to abort cleanly...");
	}
/* phpdbg_out: */
#endif

		{
			int i;
			/* free argv */
			for (i = SG(request_info).argc; --i;) {
				efree(SG(request_info).argv[i]);
			}
			efree(SG(request_info).argv);
		}

#ifndef ZTS
		/* force cleanup of auto and core globals */
		zend_hash_clean(CG(auto_globals));
		memset(	&core_globals, 0, sizeof(php_core_globals));
#endif
		if (ini_entries) {
			free(ini_entries);
		}

		if (ini_override) {
			free(ini_override);
		}

		/* this must be forced */
		CG(unclean_shutdown) = 0;

		/* this is just helpful */
		PG(report_memleaks) = 0;

		php_request_shutdown((void*)0);

		php_output_deactivate(TSRMLS_C);

		zend_try {
			php_module_shutdown(TSRMLS_C);
		} zend_end_try();

		sapi_shutdown();

	}

	if (cleaning || remote) {
		goto phpdbg_main;
	}

#ifdef ZTS
	/* bugggy */
	/* tsrm_shutdown(); */
#endif

#ifndef _WIN32
	if (address) {
		free(address);
	}
#endif

	if (PHPDBG_G(sapi_name_ptr)) {
		free(PHPDBG_G(sapi_name_ptr));
	}

#ifdef _WIN32
	free(bp_tmp_file);
#else
	unlink(bp_tmp_file);
#endif

	return 0;
} /* }}} */