diff options
Diffstat (limited to 'ext/mysqlnd/mysqlnd_bt.c')
| -rw-r--r-- | ext/mysqlnd/mysqlnd_bt.c | 483 |
1 files changed, 483 insertions, 0 deletions
diff --git a/ext/mysqlnd/mysqlnd_bt.c b/ext/mysqlnd/mysqlnd_bt.c new file mode 100644 index 0000000000..4863012409 --- /dev/null +++ b/ext/mysqlnd/mysqlnd_bt.c @@ -0,0 +1,483 @@ +/* + +----------------------------------------------------------------------+ + | PHP Version 5 | + +----------------------------------------------------------------------+ + | Copyright (c) 2006-2011 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: Georg Richter <georg@mysql.com> | + | Andrey Hristov <andrey@mysql.com> | + | Ulf Wendel <uwendel@mysql.com> | + +----------------------------------------------------------------------+ +*/ + +/* $Id: mysqlnd_debug.c 309303 2011-03-16 12:42:59Z andrey $ */ + +#include "php.h" + +/* Follows code borrowed from zend_builtin_functions.c because the functions there are static */ + +#if MYSQLND_UNICODE +/* {{{ gettraceasstring() macros */ +#define TRACE_APPEND_CHR(chr) \ + *str = (char*)erealloc(*str, *len + 1 + 1); \ + (*str)[(*len)++] = chr + +#define TRACE_APPEND_STRL(val, vallen) \ + { \ + int l = vallen; \ + *str = (char*)erealloc(*str, *len + l + 1); \ + memcpy((*str) + *len, val, l); \ + *len += l; \ + } + +#define TRACE_APPEND_USTRL(val, vallen) \ + { \ + zval tmp, copy; \ + int use_copy; \ + ZVAL_UNICODEL(&tmp, val, vallen, 1); \ + zend_make_printable_zval(&tmp, ©, &use_copy); \ + TRACE_APPEND_STRL(Z_STRVAL(copy), Z_STRLEN(copy)); \ + zval_dtor(©); \ + zval_dtor(&tmp); \ + } + +#define TRACE_APPEND_ZVAL(zv) \ + if (Z_TYPE_P((zv)) == IS_UNICODE) { \ + zval copy; \ + int use_copy; \ + zend_make_printable_zval((zv), ©, &use_copy); \ + TRACE_APPEND_STRL(Z_STRVAL(copy), Z_STRLEN(copy)); \ + zval_dtor(©); \ + } else { \ + TRACE_APPEND_STRL(Z_STRVAL_P((zv)), Z_STRLEN_P((zv))); \ + } + +#define TRACE_APPEND_STR(val) \ + TRACE_APPEND_STRL(val, sizeof(val)-1) + +#define TRACE_APPEND_KEY(key) \ + if (zend_ascii_hash_find(ht, key, sizeof(key), (void**)&tmp) == SUCCESS) { \ + if (Z_TYPE_PP(tmp) == IS_UNICODE) { \ + zval copy; \ + int use_copy; \ + zend_make_printable_zval(*tmp, ©, &use_copy); \ + TRACE_APPEND_STRL(Z_STRVAL(copy), Z_STRLEN(copy)); \ + zval_dtor(©); \ + } else { \ + TRACE_APPEND_STRL(Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp)); \ + } \ + } +/* }}} */ + + +/* {{{ mysqlnd_build_trace_args */ +static int mysqlnd_build_trace_args(zval **arg TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) +{ + char **str; + int *len; + + str = va_arg(args, char**); + len = va_arg(args, int*); + + /* the trivial way would be to do: + * conver_to_string_ex(arg); + * append it and kill the now tmp arg. + * but that could cause some E_NOTICE and also damn long lines. + */ + + switch (Z_TYPE_PP(arg)) { + case IS_NULL: + TRACE_APPEND_STR("NULL, "); + break; + case IS_STRING: { + int l_added; + TRACE_APPEND_CHR('\''); + if (Z_STRLEN_PP(arg) > 15) { + TRACE_APPEND_STRL(Z_STRVAL_PP(arg), 15); + TRACE_APPEND_STR("...', "); + l_added = 15 + 6 + 1; /* +1 because of while (--l_added) */ + } else { + l_added = Z_STRLEN_PP(arg); + TRACE_APPEND_STRL(Z_STRVAL_PP(arg), l_added); + TRACE_APPEND_STR("', "); + l_added += 3 + 1; + } + while (--l_added) { + if ((unsigned char)(*str)[*len - l_added] < 32) { + (*str)[*len - l_added] = '?'; + } + } + break; + } + case IS_UNICODE: { + int l_added; + + /* + * We do not want to apply current error mode here, since + * zend_make_printable_zval() uses output encoding converter. + * Temporarily set output encoding converter to escape offending + * chars with \uXXXX notation. + */ + zend_set_converter_error_mode(ZEND_U_CONVERTER(UG(output_encoding_conv)), ZEND_FROM_UNICODE, ZEND_CONV_ERROR_ESCAPE_JAVA); + TRACE_APPEND_CHR('\''); + if (Z_USTRLEN_PP(arg) > 15) { + TRACE_APPEND_USTRL(Z_USTRVAL_PP(arg), 15); + TRACE_APPEND_STR("...', "); + l_added = 15 + 6 + 1; /* +1 because of while (--l_added) */ + } else { + l_added = Z_USTRLEN_PP(arg); + TRACE_APPEND_USTRL(Z_USTRVAL_PP(arg), l_added); + TRACE_APPEND_STR("', "); + l_added += 3 + 1; + } + /* + * Reset output encoding converter error mode. + */ + zend_set_converter_error_mode(ZEND_U_CONVERTER(UG(output_encoding_conv)), ZEND_FROM_UNICODE, UG(from_error_mode)); + while (--l_added) { + if ((unsigned char)(*str)[*len - l_added] < 32) { + (*str)[*len - l_added] = '?'; + } + } + break; + } + case IS_BOOL: + if (Z_LVAL_PP(arg)) { + TRACE_APPEND_STR("true, "); + } else { + TRACE_APPEND_STR("false, "); + } + break; + case IS_RESOURCE: + TRACE_APPEND_STR("Resource id #"); + /* break; */ + case IS_LONG: { + long lval = Z_LVAL_PP(arg); + char s_tmp[MAX_LENGTH_OF_LONG + 1]; + int l_tmp = zend_sprintf(s_tmp, "%ld", lval); /* SAFE */ + TRACE_APPEND_STRL(s_tmp, l_tmp); + TRACE_APPEND_STR(", "); + break; + } + case IS_DOUBLE: { + double dval = Z_DVAL_PP(arg); + char *s_tmp; + int l_tmp; + + s_tmp = emalloc(MAX_LENGTH_OF_DOUBLE + EG(precision) + 1); + l_tmp = zend_sprintf(s_tmp, "%.*G", (int) EG(precision), dval); /* SAFE */ + TRACE_APPEND_STRL(s_tmp, l_tmp); + /* %G already handles removing trailing zeros from the fractional part, yay */ + efree(s_tmp); + TRACE_APPEND_STR(", "); + break; + } + case IS_ARRAY: + TRACE_APPEND_STR("Array, "); + break; + case IS_OBJECT: { + zval tmp; + zstr class_name; + zend_uint class_name_len; + int dup; + + TRACE_APPEND_STR("Object("); + + dup = zend_get_object_classname(*arg, &class_name, &class_name_len TSRMLS_CC); + + ZVAL_UNICODEL(&tmp, class_name.u, class_name_len, 1); + convert_to_string_with_converter(&tmp, ZEND_U_CONVERTER(UG(output_encoding_conv))); + TRACE_APPEND_STRL(Z_STRVAL(tmp), Z_STRLEN(tmp)); + zval_dtor(&tmp); + + if(!dup) { + efree(class_name.v); + } + + TRACE_APPEND_STR("), "); + break; + } + default: + break; + } + return ZEND_HASH_APPLY_KEEP; +} +/* }}} */ + + +static int mysqlnd_build_trace_string(zval **frame TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ +{ + char *s_tmp, **str; + int *len, *num; + long line; + HashTable *ht = Z_ARRVAL_PP(frame); + zval **file, **tmp; + uint * level; + + level = va_arg(args, uint *); + str = va_arg(args, char**); + len = va_arg(args, int*); + num = va_arg(args, int*); + + if (!*level) { + return ZEND_HASH_APPLY_KEEP; + } + --*level; + + s_tmp = emalloc(1 + MAX_LENGTH_OF_LONG + 1 + 1); + sprintf(s_tmp, "#%d ", (*num)++); + TRACE_APPEND_STRL(s_tmp, strlen(s_tmp)); + efree(s_tmp); + if (zend_ascii_hash_find(ht, "file", sizeof("file"), (void**)&file) == SUCCESS) { + if (zend_ascii_hash_find(ht, "line", sizeof("line"), (void**)&tmp) == SUCCESS) { + line = Z_LVAL_PP(tmp); + } else { + line = 0; + } + TRACE_APPEND_ZVAL(*file); + s_tmp = emalloc(MAX_LENGTH_OF_LONG + 2 + 1); + sprintf(s_tmp, "(%ld): ", line); + TRACE_APPEND_STRL(s_tmp, strlen(s_tmp)); + efree(s_tmp); + } else { + TRACE_APPEND_STR("[internal function]: "); + } + TRACE_APPEND_KEY("class"); + TRACE_APPEND_KEY("type"); + TRACE_APPEND_KEY("function"); + TRACE_APPEND_CHR('('); + if (zend_ascii_hash_find(ht, "args", sizeof("args"), (void**)&tmp) == SUCCESS) { + int last_len = *len; + zend_hash_apply_with_arguments(Z_ARRVAL_PP(tmp) TSRMLS_CC, (apply_func_args_t)mysqlnd_build_trace_args, 2, str, len); + if (last_len != *len) { + *len -= 2; /* remove last ', ' */ + } + } + TRACE_APPEND_STR(")\n"); + return ZEND_HASH_APPLY_KEEP; +} +/* }}} */ + + +#else /* PHP 5*/ + + +/* {{{ gettraceasstring() macros */ +#define TRACE_APPEND_CHR(chr) \ + *str = (char*)erealloc(*str, *len + 1 + 1); \ + (*str)[(*len)++] = chr + +#define TRACE_APPEND_STRL(val, vallen) \ + { \ + int l = vallen; \ + *str = (char*)erealloc(*str, *len + l + 1); \ + memcpy((*str) + *len, val, l); \ + *len += l; \ + } + +#define TRACE_APPEND_STR(val) \ + TRACE_APPEND_STRL(val, sizeof(val)-1) + +#define TRACE_APPEND_KEY(key) \ + if (zend_hash_find(ht, key, sizeof(key), (void**)&tmp) == SUCCESS) { \ + TRACE_APPEND_STRL(Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp)); \ + } + +/* }}} */ + + +static int mysqlnd_build_trace_args(zval **arg TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ +{ + char **str; + int *len; + + str = va_arg(args, char**); + len = va_arg(args, int*); + + /* the trivial way would be to do: + * conver_to_string_ex(arg); + * append it and kill the now tmp arg. + * but that could cause some E_NOTICE and also damn long lines. + */ + + switch (Z_TYPE_PP(arg)) { + case IS_NULL: + TRACE_APPEND_STR("NULL, "); + break; + case IS_STRING: { + int l_added; + TRACE_APPEND_CHR('\''); + if (Z_STRLEN_PP(arg) > 15) { + TRACE_APPEND_STRL(Z_STRVAL_PP(arg), 15); + TRACE_APPEND_STR("...', "); + l_added = 15 + 6 + 1; /* +1 because of while (--l_added) */ + } else { + l_added = Z_STRLEN_PP(arg); + TRACE_APPEND_STRL(Z_STRVAL_PP(arg), l_added); + TRACE_APPEND_STR("', "); + l_added += 3 + 1; + } + while (--l_added) { + if ((*str)[*len - l_added] < 32) { + (*str)[*len - l_added] = '?'; + } + } + break; + } + case IS_BOOL: + if (Z_LVAL_PP(arg)) { + TRACE_APPEND_STR("true, "); + } else { + TRACE_APPEND_STR("false, "); + } + break; + case IS_RESOURCE: + TRACE_APPEND_STR("Resource id #"); + /* break; */ + case IS_LONG: { + long lval = Z_LVAL_PP(arg); + char s_tmp[MAX_LENGTH_OF_LONG + 1]; + int l_tmp = zend_sprintf(s_tmp, "%ld", lval); /* SAFE */ + TRACE_APPEND_STRL(s_tmp, l_tmp); + TRACE_APPEND_STR(", "); + break; + } + case IS_DOUBLE: { + double dval = Z_DVAL_PP(arg); + char *s_tmp; + int l_tmp; + + s_tmp = emalloc(MAX_LENGTH_OF_DOUBLE + EG(precision) + 1); + l_tmp = zend_sprintf(s_tmp, "%.*G", (int) EG(precision), dval); /* SAFE */ + TRACE_APPEND_STRL(s_tmp, l_tmp); + /* %G already handles removing trailing zeros from the fractional part, yay */ + efree(s_tmp); + TRACE_APPEND_STR(", "); + break; + } + case IS_ARRAY: + TRACE_APPEND_STR("Array, "); + break; + case IS_OBJECT: { + char *class_name; + zend_uint class_name_len; + int dupl; + + TRACE_APPEND_STR("Object("); + + dupl = zend_get_object_classname(*arg, &class_name, &class_name_len TSRMLS_CC); + + TRACE_APPEND_STRL(class_name, class_name_len); + if (!dupl) { + efree(class_name); + } + + TRACE_APPEND_STR("), "); + break; + } + default: + break; + } + return ZEND_HASH_APPLY_KEEP; +} +/* }}} */ + +static int mysqlnd_build_trace_string(zval **frame TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ +{ + char *s_tmp, **str; + int *len, *num; + long line; + HashTable *ht = Z_ARRVAL_PP(frame); + zval **file, **tmp; + uint * level; + + level = va_arg(args, uint *); + str = va_arg(args, char**); + len = va_arg(args, int*); + num = va_arg(args, int*); + + if (!*level) { + return ZEND_HASH_APPLY_KEEP; + } + --*level; + + s_tmp = emalloc(1 + MAX_LENGTH_OF_LONG + 1 + 1); + sprintf(s_tmp, "#%d ", (*num)++); + TRACE_APPEND_STRL(s_tmp, strlen(s_tmp)); + efree(s_tmp); + if (zend_hash_find(ht, "file", sizeof("file"), (void**)&file) == SUCCESS) { + if (zend_hash_find(ht, "line", sizeof("line"), (void**)&tmp) == SUCCESS) { + line = Z_LVAL_PP(tmp); + } else { + line = 0; + } + s_tmp = emalloc(Z_STRLEN_PP(file) + MAX_LENGTH_OF_LONG + 4 + 1); + sprintf(s_tmp, "%s(%ld): ", Z_STRVAL_PP(file), line); + TRACE_APPEND_STRL(s_tmp, strlen(s_tmp)); + efree(s_tmp); + } else { + TRACE_APPEND_STR("[internal function]: "); + } + TRACE_APPEND_KEY("class"); + TRACE_APPEND_KEY("type"); + TRACE_APPEND_KEY("function"); + TRACE_APPEND_CHR('('); + if (zend_hash_find(ht, "args", sizeof("args"), (void**)&tmp) == SUCCESS) { + int last_len = *len; + zend_hash_apply_with_arguments(Z_ARRVAL_PP(tmp) TSRMLS_CC, (apply_func_args_t)mysqlnd_build_trace_args, 2, str, len); + if (last_len != *len) { + *len -= 2; /* remove last ', ' */ + } + } + TRACE_APPEND_STR(")\n"); + return ZEND_HASH_APPLY_KEEP; +} +/* }}} */ +#endif + + +PHPAPI char * mysqlnd_get_backtrace(uint max_levels, size_t * length TSRMLS_DC) +{ + zval *trace; + char *res = estrdup(""), **str = &res, *s_tmp; + int res_len = 0, *len = &res_len, num = 0; + if (max_levels == 0) { + max_levels = 99999; + } + + MAKE_STD_ZVAL(trace); + zend_fetch_debug_backtrace(trace, 0, 0 TSRMLS_CC); + + zend_hash_apply_with_arguments(Z_ARRVAL_P(trace) TSRMLS_CC, (apply_func_args_t)mysqlnd_build_trace_string, 4, &max_levels, str, len, &num); + zval_ptr_dtor(&trace); + + if (max_levels) { + s_tmp = emalloc(1 + MAX_LENGTH_OF_LONG + 7 + 1); + sprintf(s_tmp, "#%d {main}", num); + TRACE_APPEND_STRL(s_tmp, strlen(s_tmp)); + efree(s_tmp); + } + + res[res_len] = '\0'; + *length = res_len; + + return res; +} + + +/* + * Local variables: + * tab-width: 4 + * c-basic-offset: 4 + * End: + * vim600: noet sw=4 ts=4 fdm=marker + * vim<600: noet sw=4 ts=4 + */ |