diff options
Diffstat (limited to 'sapi/phpdbg/phpdbg_list.c')
| -rw-r--r-- | sapi/phpdbg/phpdbg_list.c | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/sapi/phpdbg/phpdbg_list.c b/sapi/phpdbg/phpdbg_list.c new file mode 100644 index 0000000000..8ab4c8922a --- /dev/null +++ b/sapi/phpdbg/phpdbg_list.c @@ -0,0 +1,308 @@ +/* + +----------------------------------------------------------------------+ + | 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> | + +----------------------------------------------------------------------+ +*/ + +#include <stdio.h> +#include <string.h> +#include <sys/stat.h> +#ifndef _WIN32 +# include <sys/mman.h> +# include <unistd.h> +#endif +#include <fcntl.h> +#include "phpdbg.h" +#include "phpdbg_list.h" +#include "phpdbg_utils.h" +#include "phpdbg_prompt.h" +#include "php_streams.h" + +ZEND_EXTERN_MODULE_GLOBALS(phpdbg); + +#define PHPDBG_LIST_COMMAND_D(f, h, a, m, l, s, flags) \ + PHPDBG_COMMAND_D_EXP(f, h, a, m, l, s, &phpdbg_prompt_commands[13], flags) + +const phpdbg_command_t phpdbg_list_commands[] = { + PHPDBG_LIST_COMMAND_D(lines, "lists the specified lines", 'l', list_lines, NULL, "l", PHPDBG_ASYNC_SAFE), + PHPDBG_LIST_COMMAND_D(class, "lists the specified class", 'c', list_class, NULL, "s", PHPDBG_ASYNC_SAFE), + PHPDBG_LIST_COMMAND_D(method, "lists the specified method", 'm', list_method, NULL, "m", PHPDBG_ASYNC_SAFE), + PHPDBG_LIST_COMMAND_D(func, "lists the specified function", 'f', list_func, NULL, "s", PHPDBG_ASYNC_SAFE), + PHPDBG_END_COMMAND +}; + +PHPDBG_LIST(lines) /* {{{ */ +{ + if (!PHPDBG_G(exec) && !zend_is_executing(TSRMLS_C)) { + phpdbg_error("inactive", "type=\"execution\"", "Not executing, and execution context not set"); + return SUCCESS; + } + + switch (param->type) { + case NUMERIC_PARAM: + phpdbg_list_file(phpdbg_current_file(TSRMLS_C), + (param->num < 0 ? 1 - param->num : param->num), + (param->num < 0 ? param->num : 0) + zend_get_executed_lineno(TSRMLS_C), + 0 TSRMLS_CC); + break; + + case FILE_PARAM: + phpdbg_list_file(param->file.name, param->file.line, 0, 0 TSRMLS_CC); + break; + + phpdbg_default_switch_case(); + } + + return SUCCESS; +} /* }}} */ + +PHPDBG_LIST(func) /* {{{ */ +{ + phpdbg_list_function_byname(param->str, param->len TSRMLS_CC); + + return SUCCESS; +} /* }}} */ + +PHPDBG_LIST(method) /* {{{ */ +{ + zend_class_entry **ce; + + if (phpdbg_safe_class_lookup(param->method.class, strlen(param->method.class), &ce TSRMLS_CC) == SUCCESS) { + zend_function *function; + char *lcname = zend_str_tolower_dup(param->method.name, strlen(param->method.name)); + + if (zend_hash_find(&(*ce)->function_table, lcname, strlen(lcname)+1, (void**) &function) == SUCCESS) { + phpdbg_list_function(function TSRMLS_CC); + } else { + phpdbg_error("list", "type=\"notfound\" method=\"%s::%s\"", "Could not find %s::%s", param->method.class, param->method.name); + } + + efree(lcname); + } else { + phpdbg_error("list", "type=\"notfound\" class=\"%s\"", "Could not find the class %s", param->method.class); + } + + return SUCCESS; +} /* }}} */ + +PHPDBG_LIST(class) /* {{{ */ +{ + zend_class_entry **ce; + + if (phpdbg_safe_class_lookup(param->str, param->len, &ce TSRMLS_CC) == SUCCESS) { + if ((*ce)->type == ZEND_USER_CLASS) { + if ((*ce)->info.user.filename) { + phpdbg_list_file( + (*ce)->info.user.filename, + (*ce)->info.user.line_end - (*ce)->info.user.line_start + 1, + (*ce)->info.user.line_start, 0 TSRMLS_CC + ); + } else { + phpdbg_error("list", "type=\"nosource\" class=\"%s\"", "The source of the requested class (%s) cannot be found", (*ce)->name); + } + } else { + phpdbg_error("list", "type=\"internalclass\" class=\"%s\"", "The class requested (%s) is not user defined", (*ce)->name); + } + } else { + phpdbg_error("list", "type=\"notfound\" class=\"%s\"", "The requested class (%s) could not be found", param->str); + } + + return SUCCESS; +} /* }}} */ + +void phpdbg_list_file(const char *filename, uint count, int offset, uint highlight TSRMLS_DC) /* {{{ */ +{ + uint line, lastline; + phpdbg_file_source **data; + char resolved_path_buf[MAXPATHLEN]; + + if (VCWD_REALPATH(filename, resolved_path_buf)) { + filename = resolved_path_buf; + } + + if (zend_hash_find(&PHPDBG_G(file_sources), filename, strlen(filename), (void **) &data) == FAILURE) { + phpdbg_error("list", "type=\"unknownfile\"", "Could not find information about included file..."); + return; + } + + if (offset < 0) { + count += offset; + offset = 0; + } + + lastline = offset + count; + + if (lastline > (*data)->lines) { + lastline = (*data)->lines; + } + + phpdbg_xml("<list %r file=\"%s\">", filename); + + for (line = offset; line < lastline;) { + uint linestart = (*data)->line[line++]; + uint linelen = (*data)->line[line] - linestart; + char *buffer = (*data)->buf + linestart; + + if (!highlight) { + phpdbg_write("line", "line=\"%u\" code=\"%.*s\"", " %05u: %.*s", line, linelen, buffer); + } else { + if (highlight != line) { + phpdbg_write("line", "line=\"%u\" code=\"%.*s\"", " %05u: %.*s", line, linelen, buffer); + } else { + phpdbg_write("line", "line=\"%u\" code=\"%.*s\" current=\"current\"", ">%05u: %.*s", line, linelen, buffer); + } + } + + if (*(buffer + linelen - 1) != '\n' || !linelen) { + phpdbg_out("\n"); + } + } + + phpdbg_xml("</list>"); +} /* }}} */ + +void phpdbg_list_function(const zend_function *fbc TSRMLS_DC) /* {{{ */ +{ + const zend_op_array *ops; + + if (fbc->type != ZEND_USER_FUNCTION) { + phpdbg_error("list", "type=\"internalfunction\" function=\"%s\"", "The function requested (%s) is not user defined", fbc->common.function_name); + return; + } + + ops = (zend_op_array *)fbc; + + phpdbg_list_file(ops->filename, ops->line_end - ops->line_start + 1, ops->line_start, 0 TSRMLS_CC); +} /* }}} */ + +void phpdbg_list_function_byname(const char *str, size_t len TSRMLS_DC) /* {{{ */ +{ + HashTable *func_table = EG(function_table); + zend_function* fbc; + char *func_name = (char*) str; + size_t func_name_len = len; + + /* search active scope if begins with period */ + if (func_name[0] == '.') { + if (EG(scope)) { + func_name++; + func_name_len--; + + func_table = &EG(scope)->function_table; + } else { + phpdbg_error("inactive", "type=\"noclasses\"", "No active class"); + return; + } + } else if (!EG(function_table)) { + phpdbg_error("inactive", "type=\"function_table\"", "No function table loaded"); + return; + } else { + func_table = EG(function_table); + } + + /* use lowercase names, case insensitive */ + func_name = zend_str_tolower_dup(func_name, func_name_len); + + phpdbg_try_access { + if (zend_hash_find(func_table, func_name, func_name_len+1, (void**)&fbc) == SUCCESS) { + phpdbg_list_function(fbc TSRMLS_CC); + } else { + phpdbg_error("list", "type=\"nofunction\" function=\"%s\"", "Function %s not found", func_name); + } + } phpdbg_catch_access { + phpdbg_error("signalsegv", "function=\"%s\"", "Could not list function %s, invalid data source", func_name); + } phpdbg_end_try_access(); + + efree(func_name); +} /* }}} */ + +zend_op_array *phpdbg_compile_file(zend_file_handle *file, int type TSRMLS_DC) { + phpdbg_file_source data, *dataptr; + zend_file_handle fake = {0}; + zend_op_array *ret; + char *filename = (char *)(file->opened_path ? file->opened_path : file->filename); + uint line; + char *bufptr, *endptr; + char resolved_path_buf[MAXPATHLEN]; + + zend_stream_fixup(file, &data.buf, &data.len TSRMLS_CC); + + data.filename = filename; + data.line[0] = 0; + + if (file->handle.stream.mmap.old_closer) { + /* do not unmap */ + file->handle.stream.closer = file->handle.stream.mmap.old_closer; + } + +#if HAVE_MMAP + if (file->handle.stream.mmap.map) { + data.map = file->handle.stream.mmap.map; + } +#endif + + fake.type = ZEND_HANDLE_MAPPED; + fake.handle.stream.mmap.buf = data.buf; + fake.handle.stream.mmap.len = data.len; + fake.free_filename = 0; + fake.opened_path = file->opened_path; + fake.filename = filename; + fake.opened_path = file->opened_path; + + *(dataptr = emalloc(sizeof(phpdbg_file_source) + sizeof(uint) * data.len)) = data; + if (VCWD_REALPATH(filename, resolved_path_buf)) { + filename = resolved_path_buf; + } + zend_hash_add(&PHPDBG_G(file_sources), filename, strlen(filename), &dataptr, sizeof(phpdbg_file_source *), NULL); + + for (line = 0, bufptr = data.buf - 1, endptr = data.buf + data.len; ++bufptr < endptr;) { + if (*bufptr == '\n') { + dataptr->line[++line] = (uint)(bufptr - data.buf) + 1; + } + } + dataptr->lines = ++line; + dataptr->line[line] = endptr - data.buf; + dataptr = erealloc(dataptr, sizeof(phpdbg_file_source) + sizeof(uint) * line); + + phpdbg_resolve_pending_file_break(filename TSRMLS_CC); + + ret = PHPDBG_G(compile_file)(&fake, type TSRMLS_CC); + + fake.opened_path = NULL; + zend_file_handle_dtor(&fake TSRMLS_CC); + + return ret; +} + +void phpdbg_free_file_source(phpdbg_file_source *data) { +#if HAVE_MMAP + if (data->map) { + munmap(data->map, data->len + ZEND_MMAP_AHEAD); + } else +#endif + if (data->buf) { + efree(data->buf); + } + + efree(data); +} + +void phpdbg_init_list(TSRMLS_D) { + PHPDBG_G(compile_file) = zend_compile_file; + zend_hash_init(&PHPDBG_G(file_sources), 1, NULL, (dtor_func_t) phpdbg_free_file_source, 0); + zend_compile_file = phpdbg_compile_file; +} |