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Code Editor : dblib_driver.c
/* +----------------------------------------------------------------------+ | Copyright (c) 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: | | https://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: Wez Furlong <wez@php.net> | | Frank M. Kromann <frank@kromann.info> | +----------------------------------------------------------------------+ */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "php.h" #include "php_ini.h" #include "ext/standard/info.h" #include "pdo/php_pdo.h" #include "pdo/php_pdo_driver.h" #include "php_pdo_dblib.h" #include "php_pdo_dblib_int.h" #include "zend_exceptions.h" /* Cache of the server supported datatypes, initialized in handle_factory */ zval* pdo_dblib_datatypes; static void dblib_fetch_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info) { pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data; pdo_dblib_err *einfo = &H->err; pdo_dblib_stmt *S = NULL; char *message; char *msg; if (stmt) { S = (pdo_dblib_stmt*)stmt->driver_data; einfo = &S->err; } if (einfo->lastmsg) { msg = einfo->lastmsg; } else if (DBLIB_G(err).lastmsg) { msg = DBLIB_G(err).lastmsg; DBLIB_G(err).lastmsg = NULL; } else { msg = einfo->dberrstr; } /* don't return anything if there's nothing to return */ if (msg == NULL && einfo->dberr == 0 && einfo->oserr == 0 && einfo->severity == 0) { return; } spprintf(&message, 0, "%s [%d] (severity %d) [%s]", msg, einfo->dberr, einfo->severity, stmt ? ZSTR_VAL(stmt->active_query_string) : ""); add_next_index_long(info, einfo->dberr); add_next_index_string(info, message); efree(message); add_next_index_long(info, einfo->oserr); add_next_index_long(info, einfo->severity); if (einfo->oserrstr) { add_next_index_string(info, einfo->oserrstr); } } static void dblib_handle_closer(pdo_dbh_t *dbh) { pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data; if (H) { pdo_dblib_err_dtor(&H->err); if (H->link) { dbclose(H->link); H->link = NULL; } if (H->login) { dbfreelogin(H->login); H->login = NULL; } pefree(H, dbh->is_persistent); dbh->driver_data = NULL; } } static bool dblib_handle_preparer(pdo_dbh_t *dbh, zend_string *sql, pdo_stmt_t *stmt, zval *driver_options) { pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data; pdo_dblib_stmt *S = ecalloc(1, sizeof(*S)); S->H = H; stmt->driver_data = S; stmt->methods = &dblib_stmt_methods; stmt->supports_placeholders = PDO_PLACEHOLDER_NONE; S->computed_column_name_count = 0; S->err.sqlstate = stmt->error_code; return true; } static zend_long dblib_handle_doer(pdo_dbh_t *dbh, const zend_string *sql) { pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data; RETCODE ret, resret; dbsetuserdata(H->link, (BYTE*)&H->err); if (FAIL == dbcmd(H->link, ZSTR_VAL(sql))) { return -1; } if (FAIL == dbsqlexec(H->link)) { return -1; } resret = dbresults(H->link); if (resret == FAIL) { return -1; } ret = dbnextrow(H->link); if (ret == FAIL) { return -1; } if (dbnumcols(H->link) <= 0) { return DBCOUNT(H->link); } /* throw away any rows it might have returned */ dbcanquery(H->link); return DBCOUNT(H->link); } static zend_string* dblib_handle_quoter(pdo_dbh_t *dbh, const zend_string *unquoted, enum pdo_param_type paramtype) { pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data; bool use_national_character_set = 0; size_t i; char *q; size_t quotedlen = 0; zend_string *quoted_str; if (H->assume_national_character_set_strings) { use_national_character_set = 1; } if ((paramtype & PDO_PARAM_STR_NATL) == PDO_PARAM_STR_NATL) { use_national_character_set = 1; } if ((paramtype & PDO_PARAM_STR_CHAR) == PDO_PARAM_STR_CHAR) { use_national_character_set = 0; } /* Detect quoted length, adding extra char for doubled single quotes */ for (i = 0; i < ZSTR_LEN(unquoted); i++) { if (ZSTR_VAL(unquoted)[i] == '\'') ++quotedlen; ++quotedlen; } quotedlen += 2; /* +2 for opening, closing quotes */ if (use_national_character_set) { ++quotedlen; /* N prefix */ } quoted_str = zend_string_alloc(quotedlen, 0); q = ZSTR_VAL(quoted_str); if (use_national_character_set) { *q++ = 'N'; } *q++ = '\''; for (i = 0; i < ZSTR_LEN(unquoted); i++) { if (ZSTR_VAL(unquoted)[i] == '\'') { *q++ = '\''; *q++ = '\''; } else { *q++ = ZSTR_VAL(unquoted)[i]; } } *q++ = '\''; *q = '\0'; return quoted_str; } static bool pdo_dblib_transaction_cmd(const char *cmd, pdo_dbh_t *dbh) { pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data; if (FAIL == dbcmd(H->link, cmd)) { return false; } if (FAIL == dbsqlexec(H->link)) { return false; } return true; } static bool dblib_handle_begin(pdo_dbh_t *dbh) { return pdo_dblib_transaction_cmd("BEGIN TRANSACTION", dbh); } static bool dblib_handle_commit(pdo_dbh_t *dbh) { return pdo_dblib_transaction_cmd("COMMIT TRANSACTION", dbh); } static bool dblib_handle_rollback(pdo_dbh_t *dbh) { return pdo_dblib_transaction_cmd("ROLLBACK TRANSACTION", dbh); } zend_string *dblib_handle_last_id(pdo_dbh_t *dbh, const zend_string *name) { pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data; RETCODE ret; char *id = NULL; size_t len; zend_string *ret_id; /* * Would use scope_identity() but it's not implemented on Sybase */ if (FAIL == dbcmd(H->link, "SELECT @@IDENTITY")) { return NULL; } if (FAIL == dbsqlexec(H->link)) { return NULL; } ret = dbresults(H->link); if (ret == FAIL || ret == NO_MORE_RESULTS) { dbcancel(H->link); return NULL; } ret = dbnextrow(H->link); if (ret == FAIL || ret == NO_MORE_ROWS) { dbcancel(H->link); return NULL; } if (dbdatlen(H->link, 1) == 0) { dbcancel(H->link); return NULL; } id = emalloc(32); len = dbconvert(NULL, (dbcoltype(H->link, 1)) , (dbdata(H->link, 1)) , (dbdatlen(H->link, 1)), SQLCHAR, (BYTE *)id, (DBINT)-1); dbcancel(H->link); ret_id = zend_string_init(id, len, 0); efree(id); return ret_id; } static bool dblib_set_attr(pdo_dbh_t *dbh, zend_long attr, zval *val) { pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data; zend_long lval; bool bval; switch(attr) { case PDO_ATTR_DEFAULT_STR_PARAM: if (!pdo_get_long_param(&lval, val)) { return false; } H->assume_national_character_set_strings = lval == PDO_PARAM_STR_NATL ? 1 : 0; return true; case PDO_ATTR_TIMEOUT: case PDO_DBLIB_ATTR_QUERY_TIMEOUT: if (!pdo_get_long_param(&lval, val)) { return false; } return SUCCEED == dbsettime(lval); case PDO_DBLIB_ATTR_STRINGIFY_UNIQUEIDENTIFIER: if (!pdo_get_long_param(&lval, val)) { return false; } H->stringify_uniqueidentifier = lval; return true; case PDO_DBLIB_ATTR_SKIP_EMPTY_ROWSETS: if (!pdo_get_bool_param(&bval, val)) { return false; } H->skip_empty_rowsets = bval; return true; case PDO_DBLIB_ATTR_DATETIME_CONVERT: if (!pdo_get_long_param(&lval, val)) { return false; } H->datetime_convert = lval; return true; default: return false; } } static void dblib_get_tds_version(zval *return_value, int tds) { switch (tds) { case DBTDS_2_0: ZVAL_STRING(return_value, "2.0"); break; case DBTDS_3_4: ZVAL_STRING(return_value, "3.4"); break; case DBTDS_4_0: ZVAL_STRING(return_value, "4.0"); break; case DBTDS_4_2: ZVAL_STRING(return_value, "4.2"); break; case DBTDS_4_6: ZVAL_STRING(return_value, "4.6"); break; case DBTDS_4_9_5: ZVAL_STRING(return_value, "4.9.5"); break; case DBTDS_5_0: ZVAL_STRING(return_value, "5.0"); break; #ifdef DBTDS_7_0 case DBTDS_7_0: ZVAL_STRING(return_value, "7.0"); break; #endif #ifdef DBTDS_7_1 case DBTDS_7_1: ZVAL_STRING(return_value, "7.1"); break; #endif #ifdef DBTDS_7_2 case DBTDS_7_2: ZVAL_STRING(return_value, "7.2"); break; #endif #ifdef DBTDS_7_3 case DBTDS_7_3: ZVAL_STRING(return_value, "7.3"); break; #endif #ifdef DBTDS_7_4 case DBTDS_7_4: ZVAL_STRING(return_value, "7.4"); break; #endif default: ZVAL_FALSE(return_value); break; } } static int dblib_get_attribute(pdo_dbh_t *dbh, zend_long attr, zval *return_value) { pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data; switch (attr) { case PDO_ATTR_DEFAULT_STR_PARAM: ZVAL_LONG(return_value, H->assume_national_character_set_strings ? PDO_PARAM_STR_NATL : PDO_PARAM_STR_CHAR); break; case PDO_ATTR_EMULATE_PREPARES: /* this is the only option available, but expose it so common tests and whatever else can introspect */ ZVAL_TRUE(return_value); break; case PDO_DBLIB_ATTR_STRINGIFY_UNIQUEIDENTIFIER: ZVAL_BOOL(return_value, H->stringify_uniqueidentifier); break; case PDO_DBLIB_ATTR_VERSION: ZVAL_STRING(return_value, dbversion()); break; case PDO_DBLIB_ATTR_TDS_VERSION: dblib_get_tds_version(return_value, dbtds(H->link)); break; case PDO_DBLIB_ATTR_SKIP_EMPTY_ROWSETS: ZVAL_BOOL(return_value, H->skip_empty_rowsets); break; case PDO_DBLIB_ATTR_DATETIME_CONVERT: ZVAL_BOOL(return_value, H->datetime_convert); break; default: return 0; } return 1; } static const struct pdo_dbh_methods dblib_methods = { dblib_handle_closer, dblib_handle_preparer, dblib_handle_doer, dblib_handle_quoter, dblib_handle_begin, /* begin */ dblib_handle_commit, /* commit */ dblib_handle_rollback, /* rollback */ dblib_set_attr, /*set attr */ dblib_handle_last_id, /* last insert id */ dblib_fetch_error, /* fetch error */ dblib_get_attribute, /* get attr */ NULL, /* check liveness */ NULL, /* get driver methods */ NULL, /* request shutdown */ NULL, /* in transaction, use PDO's internal tracking mechanism */ NULL /* get gc */ }; static int pdo_dblib_handle_factory(pdo_dbh_t *dbh, zval *driver_options) { pdo_dblib_db_handle *H; int i, nvars, nvers, ret = 0; const pdo_dblib_keyval tdsver[] = { {"4.2",DBVERSION_42} ,{"4.6",DBVERSION_46} ,{"5.0",DBVERSION_70} /* FIXME: This does not work with Sybase, but environ will */ ,{"6.0",DBVERSION_70} ,{"7.0",DBVERSION_70} #ifdef DBVERSION_71 ,{"7.1",DBVERSION_71} #endif #ifdef DBVERSION_72 ,{"7.2",DBVERSION_72} ,{"8.0",DBVERSION_72} #endif #ifdef DBVERSION_73 ,{"7.3",DBVERSION_73} #endif #ifdef DBVERSION_74 ,{"7.4",DBVERSION_74} #endif ,{"10.0",DBVERSION_100} ,{"auto",0} /* Only works with FreeTDS. Other drivers will bork */ }; struct pdo_data_src_parser vars[] = { { "charset", NULL, 0 } ,{ "appname", "PHP " PDO_DBLIB_FLAVOUR, 0 } ,{ "host", "127.0.0.1", 0 } ,{ "dbname", NULL, 0 } ,{ "secure", NULL, 0 } /* DBSETLSECURE */ ,{ "version", NULL, 0 } /* DBSETLVERSION */ ,{ "user", NULL, 0 } ,{ "password", NULL, 0 } }; nvars = sizeof(vars)/sizeof(vars[0]); nvers = sizeof(tdsver)/sizeof(tdsver[0]); php_pdo_parse_data_source(dbh->data_source, dbh->data_source_len, vars, nvars); H = pecalloc(1, sizeof(*H), dbh->is_persistent); H->login = dblogin(); H->err.sqlstate = dbh->error_code; H->assume_national_character_set_strings = 0; H->stringify_uniqueidentifier = 0; H->skip_empty_rowsets = 0; H->datetime_convert = 0; if (!H->login) { goto cleanup; } if (driver_options) { int connect_timeout = pdo_attr_lval(driver_options, PDO_DBLIB_ATTR_CONNECTION_TIMEOUT, -1); int query_timeout = pdo_attr_lval(driver_options, PDO_DBLIB_ATTR_QUERY_TIMEOUT, -1); int timeout = pdo_attr_lval(driver_options, PDO_ATTR_TIMEOUT, 30); if (connect_timeout == -1) { connect_timeout = timeout; } if (query_timeout == -1) { query_timeout = timeout; } dbsetlogintime(connect_timeout); /* Connection/Login Timeout */ dbsettime(query_timeout); /* Statement Timeout */ H->assume_national_character_set_strings = pdo_attr_lval(driver_options, PDO_ATTR_DEFAULT_STR_PARAM, 0) == PDO_PARAM_STR_NATL ? 1 : 0; H->stringify_uniqueidentifier = pdo_attr_lval(driver_options, PDO_DBLIB_ATTR_STRINGIFY_UNIQUEIDENTIFIER, 0); H->skip_empty_rowsets = pdo_attr_lval(driver_options, PDO_DBLIB_ATTR_SKIP_EMPTY_ROWSETS, 0); H->datetime_convert = pdo_attr_lval(driver_options, PDO_DBLIB_ATTR_DATETIME_CONVERT, 0); } DBERRHANDLE(H->login, (EHANDLEFUNC) pdo_dblib_error_handler); DBMSGHANDLE(H->login, (MHANDLEFUNC) pdo_dblib_msg_handler); if(vars[5].optval) { for(i=0;i<nvers;i++) { if(strcmp(vars[5].optval,tdsver[i].key) == 0) { if(FAIL==dbsetlversion(H->login, tdsver[i].value)) { pdo_raise_impl_error(dbh, NULL, "HY000", "PDO_DBLIB: Failed to set version specified in connection string."); goto cleanup; } break; } } if (i==nvers) { printf("Invalid version '%s'\n", vars[5].optval); pdo_raise_impl_error(dbh, NULL, "HY000", "PDO_DBLIB: Invalid version specified in connection string."); goto cleanup; /* unknown version specified */ } } if (!dbh->username && vars[6].optval) { dbh->username = pestrdup(vars[6].optval, dbh->is_persistent); } if (dbh->username) { if(FAIL == DBSETLUSER(H->login, dbh->username)) { goto cleanup; } } if (!dbh->password && vars[7].optval) { dbh->password = pestrdup(vars[7].optval, dbh->is_persistent); } if (dbh->password) { if(FAIL == DBSETLPWD(H->login, dbh->password)) { goto cleanup; } } #ifndef PHP_DBLIB_IS_MSSQL if (vars[0].optval) { DBSETLCHARSET(H->login, vars[0].optval); } #endif DBSETLAPP(H->login, vars[1].optval); /* DBSETLDBNAME is only available in FreeTDS 0.92 or above */ #ifdef DBSETLDBNAME if (vars[3].optval) { if(FAIL == DBSETLDBNAME(H->login, vars[3].optval)) goto cleanup; } #endif H->link = dbopen(H->login, vars[2].optval); if (!H->link) { goto cleanup; } /* * FreeTDS < 0.92 does not support the DBSETLDBNAME option * Send use database here after login (Will not work with SQL Azure) */ #ifndef DBSETLDBNAME if (vars[3].optval) { if(FAIL == dbuse(H->link, vars[3].optval)) goto cleanup; } #endif #ifdef PHP_DBLIB_IS_MSSQL /* dblib do not return more than this length from text/image */ DBSETOPT(H->link, DBTEXTLIMIT, "2147483647"); #endif /* limit text/image from network */ DBSETOPT(H->link, DBTEXTSIZE, "2147483647"); /* allow double quoted indentifiers */ DBSETOPT(H->link, DBQUOTEDIDENT, "1"); ret = 1; dbh->max_escaped_char_length = 2; dbh->alloc_own_columns = 1; cleanup: for (i = 0; i < nvars; i++) { if (vars[i].freeme) { efree(vars[i].optval); } } dbh->methods = &dblib_methods; dbh->driver_data = H; if (!ret) { zend_throw_exception_ex(php_pdo_get_exception(), DBLIB_G(err).dberr, "SQLSTATE[%s] %s (severity %d)", DBLIB_G(err).sqlstate, DBLIB_G(err).dberrstr, DBLIB_G(err).severity); } return ret; } const pdo_driver_t pdo_dblib_driver = { #ifdef PDO_DBLIB_IS_MSSQL PDO_DRIVER_HEADER(mssql), #elif defined(PHP_WIN32) #define PDO_DBLIB_IS_SYBASE PDO_DRIVER_HEADER(sybase), #else PDO_DRIVER_HEADER(dblib), #endif pdo_dblib_handle_factory };
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