diff options
Diffstat (limited to 'ext/pdo/pdo_sql_parser.c')
| -rw-r--r-- | ext/pdo/pdo_sql_parser.c | 739 |
1 files changed, 0 insertions, 739 deletions
diff --git a/ext/pdo/pdo_sql_parser.c b/ext/pdo/pdo_sql_parser.c deleted file mode 100644 index 779a70280a..0000000000 --- a/ext/pdo/pdo_sql_parser.c +++ /dev/null @@ -1,739 +0,0 @@ -/* Generated by re2c 1.0.3 */ -#line 1 "ext/pdo/pdo_sql_parser.re" -/* - +----------------------------------------------------------------------+ - | 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. | - +----------------------------------------------------------------------+ - | Author: George Schlossnagle <george@omniti.com> | - +----------------------------------------------------------------------+ -*/ - -#include "php.h" -#include "php_pdo_driver.h" -#include "php_pdo_int.h" - -#define PDO_PARSER_TEXT 1 -#define PDO_PARSER_BIND 2 -#define PDO_PARSER_BIND_POS 3 -#define PDO_PARSER_EOI 4 - -#define RET(i) {s->cur = cursor; return i; } -#define SKIP_ONE(i) {s->cur = s->tok + 1; return i; } - -#define YYCTYPE unsigned char -#define YYCURSOR cursor -#define YYLIMIT s->end -#define YYMARKER s->ptr -#define YYFILL(n) { RET(PDO_PARSER_EOI); } - -typedef struct Scanner { - char *ptr, *cur, *tok, *end; -} Scanner; - -static int scan(Scanner *s) -{ - char *cursor = s->cur; - - s->tok = cursor; - #line 53 "ext/pdo/pdo_sql_parser.re" - - - -#line 53 "ext/pdo/pdo_sql_parser.c" -{ - YYCTYPE yych; - if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2); - yych = *YYCURSOR; - switch (yych) { - case 0x00: goto yy2; - case '"': goto yy6; - case '\'': goto yy8; - case '(': - case ')': - case '*': - case '+': - case ',': - case '.': goto yy9; - case '-': goto yy10; - case '/': goto yy11; - case ':': goto yy12; - case '?': goto yy13; - default: goto yy3; - } -yy2: - YYCURSOR = YYMARKER; - goto yy7; -yy3: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - switch (yych) { - case 0x00: - case '"': - case '\'': - case '(': - case ')': - case '*': - case '+': - case ',': - case '-': - case '.': - case '/': - case ':': - case '?': goto yy5; - default: goto yy3; - } -yy5: -#line 63 "ext/pdo/pdo_sql_parser.re" - { RET(PDO_PARSER_TEXT); } -#line 100 "ext/pdo/pdo_sql_parser.c" -yy6: - yych = *(YYMARKER = ++YYCURSOR); - if (yych >= 0x01) goto yy16; -yy7: -#line 61 "ext/pdo/pdo_sql_parser.re" - { SKIP_ONE(PDO_PARSER_TEXT); } -#line 107 "ext/pdo/pdo_sql_parser.c" -yy8: - yych = *(YYMARKER = ++YYCURSOR); - if (yych <= 0x00) goto yy7; - goto yy21; -yy9: - ++YYCURSOR; - goto yy7; -yy10: - yych = *++YYCURSOR; - switch (yych) { - case '-': goto yy25; - default: goto yy7; - } -yy11: - yych = *++YYCURSOR; - switch (yych) { - case '*': goto yy28; - default: goto yy7; - } -yy12: - yych = *++YYCURSOR; - switch (yych) { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - case 'A': - case 'B': - case 'C': - case 'D': - case 'E': - case 'F': - case 'G': - case 'H': - case 'I': - case 'J': - case 'K': - case 'L': - case 'M': - case 'N': - case 'O': - case 'P': - case 'Q': - case 'R': - case 'S': - case 'T': - case 'U': - case 'V': - case 'W': - case 'X': - case 'Y': - case 'Z': - case '_': - case 'a': - case 'b': - case 'c': - case 'd': - case 'e': - case 'f': - case 'g': - case 'h': - case 'i': - case 'j': - case 'k': - case 'l': - case 'm': - case 'n': - case 'o': - case 'p': - case 'q': - case 'r': - case 's': - case 't': - case 'u': - case 'v': - case 'w': - case 'x': - case 'y': - case 'z': goto yy30; - case ':': goto yy33; - default: goto yy7; - } -yy13: - yych = *++YYCURSOR; - switch (yych) { - case '?': goto yy36; - default: goto yy14; - } -yy14: -#line 60 "ext/pdo/pdo_sql_parser.re" - { RET(PDO_PARSER_BIND_POS); } -#line 205 "ext/pdo/pdo_sql_parser.c" -yy15: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; -yy16: - switch (yych) { - case 0x00: goto yy2; - case '"': goto yy17; - case '\\': goto yy19; - default: goto yy15; - } -yy17: - ++YYCURSOR; -#line 56 "ext/pdo/pdo_sql_parser.re" - { RET(PDO_PARSER_TEXT); } -#line 221 "ext/pdo/pdo_sql_parser.c" -yy19: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - if (yych <= 0x00) goto yy2; - goto yy15; -yy20: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; -yy21: - switch (yych) { - case 0x00: goto yy2; - case '\'': goto yy22; - case '\\': goto yy24; - default: goto yy20; - } -yy22: - ++YYCURSOR; -#line 57 "ext/pdo/pdo_sql_parser.re" - { RET(PDO_PARSER_TEXT); } -#line 243 "ext/pdo/pdo_sql_parser.c" -yy24: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - if (yych <= 0x00) goto yy2; - goto yy20; -yy25: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - switch (yych) { - case '\n': - case '\r': goto yy27; - default: goto yy25; - } -yy27: -#line 62 "ext/pdo/pdo_sql_parser.re" - { RET(PDO_PARSER_TEXT); } -#line 262 "ext/pdo/pdo_sql_parser.c" -yy28: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - switch (yych) { - case '*': goto yy38; - default: goto yy28; - } -yy30: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - switch (yych) { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - case 'A': - case 'B': - case 'C': - case 'D': - case 'E': - case 'F': - case 'G': - case 'H': - case 'I': - case 'J': - case 'K': - case 'L': - case 'M': - case 'N': - case 'O': - case 'P': - case 'Q': - case 'R': - case 'S': - case 'T': - case 'U': - case 'V': - case 'W': - case 'X': - case 'Y': - case 'Z': - case '_': - case 'a': - case 'b': - case 'c': - case 'd': - case 'e': - case 'f': - case 'g': - case 'h': - case 'i': - case 'j': - case 'k': - case 'l': - case 'm': - case 'n': - case 'o': - case 'p': - case 'q': - case 'r': - case 's': - case 't': - case 'u': - case 'v': - case 'w': - case 'x': - case 'y': - case 'z': goto yy30; - default: goto yy32; - } -yy32: -#line 59 "ext/pdo/pdo_sql_parser.re" - { RET(PDO_PARSER_BIND); } -#line 344 "ext/pdo/pdo_sql_parser.c" -yy33: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - switch (yych) { - case ':': goto yy33; - default: goto yy35; - } -yy35: -#line 58 "ext/pdo/pdo_sql_parser.re" - { RET(PDO_PARSER_TEXT); } -#line 356 "ext/pdo/pdo_sql_parser.c" -yy36: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - switch (yych) { - case '?': goto yy36; - default: goto yy35; - } -yy38: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - switch (yych) { - case '*': goto yy38; - case '/': goto yy40; - default: goto yy28; - } -yy40: - ++YYCURSOR; - goto yy27; -} -#line 64 "ext/pdo/pdo_sql_parser.re" - -} - -struct placeholder { - char *pos; - size_t len; - size_t qlen; /* quoted length of value */ - char *quoted; /* quoted value */ - int freeq; - int bindno; - struct placeholder *next; -}; - -static void free_param_name(zval *el) { - efree(Z_PTR_P(el)); -} - -PDO_API int pdo_parse_params(pdo_stmt_t *stmt, char *inquery, size_t inquery_len, - char **outquery, size_t *outquery_len) -{ - Scanner s; - char *ptr, *newbuffer; - ptrdiff_t t; - uint32_t bindno = 0; - int ret = 0; - size_t newbuffer_len; - HashTable *params; - struct pdo_bound_param_data *param; - int query_type = PDO_PLACEHOLDER_NONE; - struct placeholder *placeholders = NULL, *placetail = NULL, *plc = NULL; - - ptr = *outquery; - s.cur = inquery; - s.end = inquery + inquery_len + 1; - - /* phase 1: look for args */ - while((t = scan(&s)) != PDO_PARSER_EOI) { - if (t == PDO_PARSER_BIND || t == PDO_PARSER_BIND_POS) { - if (t == PDO_PARSER_BIND) { - ptrdiff_t len = s.cur - s.tok; - if ((inquery < (s.cur - len)) && isalnum(*(s.cur - len - 1))) { - continue; - } - query_type |= PDO_PLACEHOLDER_NAMED; - } else { - query_type |= PDO_PLACEHOLDER_POSITIONAL; - } - - plc = emalloc(sizeof(*plc)); - memset(plc, 0, sizeof(*plc)); - plc->next = NULL; - plc->pos = s.tok; - plc->len = s.cur - s.tok; - plc->bindno = bindno++; - - if (placetail) { - placetail->next = plc; - } else { - placeholders = plc; - } - placetail = plc; - } - } - - if (bindno == 0) { - /* nothing to do; good! */ - return 0; - } - - /* did the query make sense to me? */ - if (query_type == (PDO_PLACEHOLDER_NAMED|PDO_PLACEHOLDER_POSITIONAL)) { - /* they mixed both types; punt */ - pdo_raise_impl_error(stmt->dbh, stmt, "HY093", "mixed named and positional parameters"); - ret = -1; - goto clean_up; - } - - if (stmt->supports_placeholders == query_type && !stmt->named_rewrite_template) { - /* query matches native syntax */ - ret = 0; - goto clean_up; - } - - if (stmt->named_rewrite_template) { - /* magic/hack. - * We we pretend that the query was positional even if - * it was named so that we fall into the - * named rewrite case below. Not too pretty, - * but it works. */ - query_type = PDO_PLACEHOLDER_POSITIONAL; - } - - params = stmt->bound_params; - - /* Do we have placeholders but no bound params */ - if (bindno && !params && stmt->supports_placeholders == PDO_PLACEHOLDER_NONE) { - pdo_raise_impl_error(stmt->dbh, stmt, "HY093", "no parameters were bound"); - ret = -1; - goto clean_up; - } - - if (params && bindno != zend_hash_num_elements(params) && stmt->supports_placeholders == PDO_PLACEHOLDER_NONE) { - /* extra bit of validation for instances when same params are bound more than once */ - if (query_type != PDO_PLACEHOLDER_POSITIONAL && bindno > zend_hash_num_elements(params)) { - int ok = 1; - for (plc = placeholders; plc; plc = plc->next) { - if ((param = zend_hash_str_find_ptr(params, plc->pos, plc->len)) == NULL) { - ok = 0; - break; - } - } - if (ok) { - goto safe; - } - } - pdo_raise_impl_error(stmt->dbh, stmt, "HY093", "number of bound variables does not match number of tokens"); - ret = -1; - goto clean_up; - } -safe: - /* what are we going to do ? */ - if (stmt->supports_placeholders == PDO_PLACEHOLDER_NONE) { - /* query generation */ - - newbuffer_len = inquery_len; - - /* let's quote all the values */ - for (plc = placeholders; plc; plc = plc->next) { - if (query_type == PDO_PLACEHOLDER_POSITIONAL) { - param = zend_hash_index_find_ptr(params, plc->bindno); - } else { - param = zend_hash_str_find_ptr(params, plc->pos, plc->len); - } - if (param == NULL) { - /* parameter was not defined */ - ret = -1; - pdo_raise_impl_error(stmt->dbh, stmt, "HY093", "parameter was not defined"); - goto clean_up; - } - if (stmt->dbh->methods->quoter) { - zval *parameter; - if (Z_ISREF(param->parameter)) { - parameter = Z_REFVAL(param->parameter); - } else { - parameter = ¶m->parameter; - } - if (param->param_type == PDO_PARAM_LOB && Z_TYPE_P(parameter) == IS_RESOURCE) { - php_stream *stm; - - php_stream_from_zval_no_verify(stm, parameter); - if (stm) { - zend_string *buf; - - buf = php_stream_copy_to_mem(stm, PHP_STREAM_COPY_ALL, 0); - if (!buf) { - buf = ZSTR_EMPTY_ALLOC(); - } - if (!stmt->dbh->methods->quoter(stmt->dbh, ZSTR_VAL(buf), ZSTR_LEN(buf), &plc->quoted, &plc->qlen, - param->param_type)) { - /* bork */ - ret = -1; - strncpy(stmt->error_code, stmt->dbh->error_code, 6); - if (buf) { - zend_string_release_ex(buf, 0); - } - goto clean_up; - } - if (buf) { - zend_string_release_ex(buf, 0); - } - } else { - pdo_raise_impl_error(stmt->dbh, stmt, "HY105", "Expected a stream resource"); - ret = -1; - goto clean_up; - } - plc->freeq = 1; - } else { - enum pdo_param_type param_type = param->param_type; - zend_string *buf = NULL; - - /* assume all types are nullable */ - if (Z_TYPE_P(parameter) == IS_NULL) { - param_type = PDO_PARAM_NULL; - } - - switch (param_type) { - case PDO_PARAM_BOOL: - plc->quoted = zend_is_true(parameter) ? "1" : "0"; - plc->qlen = sizeof("1")-1; - plc->freeq = 0; - break; - - case PDO_PARAM_INT: - buf = zend_long_to_str(zval_get_long(parameter)); - - plc->qlen = ZSTR_LEN(buf); - plc->quoted = estrdup(ZSTR_VAL(buf)); - plc->freeq = 1; - break; - - case PDO_PARAM_NULL: - plc->quoted = "NULL"; - plc->qlen = sizeof("NULL")-1; - plc->freeq = 0; - break; - - default: - buf = zval_get_string(parameter); - if (!stmt->dbh->methods->quoter(stmt->dbh, ZSTR_VAL(buf), - ZSTR_LEN(buf), &plc->quoted, &plc->qlen, - param_type)) { - /* bork */ - ret = -1; - strncpy(stmt->error_code, stmt->dbh->error_code, 6); - if (buf) { - zend_string_release_ex(buf, 0); - } - goto clean_up; - } - plc->freeq = 1; - } - - if (buf) { - zend_string_release_ex(buf, 0); - } - } - } else { - zval *parameter; - if (Z_ISREF(param->parameter)) { - parameter = Z_REFVAL(param->parameter); - } else { - parameter = ¶m->parameter; - } - plc->quoted = Z_STRVAL_P(parameter); - plc->qlen = Z_STRLEN_P(parameter); - } - newbuffer_len += plc->qlen; - } - -rewrite: - /* allocate output buffer */ - newbuffer = emalloc(newbuffer_len + 1); - *outquery = newbuffer; - - /* and build the query */ - plc = placeholders; - ptr = inquery; - - do { - t = plc->pos - ptr; - if (t) { - memcpy(newbuffer, ptr, t); - newbuffer += t; - } - memcpy(newbuffer, plc->quoted, plc->qlen); - newbuffer += plc->qlen; - ptr = plc->pos + plc->len; - - plc = plc->next; - } while (plc); - - t = (inquery + inquery_len) - ptr; - if (t) { - memcpy(newbuffer, ptr, t); - newbuffer += t; - } - *newbuffer = '\0'; - *outquery_len = newbuffer - *outquery; - - ret = 1; - goto clean_up; - - } else if (query_type == PDO_PLACEHOLDER_POSITIONAL) { - /* rewrite ? to :pdoX */ - char *name, *idxbuf; - const char *tmpl = stmt->named_rewrite_template ? stmt->named_rewrite_template : ":pdo%d"; - int bind_no = 1; - - newbuffer_len = inquery_len; - - if (stmt->bound_param_map == NULL) { - ALLOC_HASHTABLE(stmt->bound_param_map); - zend_hash_init(stmt->bound_param_map, 13, NULL, free_param_name, 0); - } - - for (plc = placeholders; plc; plc = plc->next) { - int skip_map = 0; - char *p; - name = estrndup(plc->pos, plc->len); - - /* check if bound parameter is already available */ - if (!strcmp(name, "?") || (p = zend_hash_str_find_ptr(stmt->bound_param_map, name, plc->len)) == NULL) { - spprintf(&idxbuf, 0, tmpl, bind_no++); - } else { - idxbuf = estrdup(p); - skip_map = 1; - } - - plc->quoted = idxbuf; - plc->qlen = strlen(plc->quoted); - plc->freeq = 1; - newbuffer_len += plc->qlen; - - if (!skip_map && stmt->named_rewrite_template) { - /* create a mapping */ - zend_hash_str_update_mem(stmt->bound_param_map, name, plc->len, idxbuf, plc->qlen + 1); - } - - /* map number to name */ - zend_hash_index_update_mem(stmt->bound_param_map, plc->bindno, idxbuf, plc->qlen + 1); - - efree(name); - } - - goto rewrite; - - } else { - /* rewrite :name to ? */ - - newbuffer_len = inquery_len; - - if (stmt->bound_param_map == NULL) { - ALLOC_HASHTABLE(stmt->bound_param_map); - zend_hash_init(stmt->bound_param_map, 13, NULL, free_param_name, 0); - } - - for (plc = placeholders; plc; plc = plc->next) { - char *name; - name = estrndup(plc->pos, plc->len); - zend_hash_index_update_mem(stmt->bound_param_map, plc->bindno, name, plc->len + 1); - efree(name); - plc->quoted = "?"; - plc->qlen = 1; - } - - goto rewrite; - } - -clean_up: - - while (placeholders) { - plc = placeholders; - placeholders = plc->next; - - if (plc->freeq) { - efree(plc->quoted); - } - - efree(plc); - } - - return ret; -} - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - * vim600: noet sw=4 ts=4 fdm=marker ft=c - * vim<600: noet sw=4 ts=4 - */ |