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pgsql.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2004 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 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_0.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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Zeev Suraski <[email protected]> |
| Jouni Ahto <[email protected]> |
| Yasuo Ohgaki <[email protected]> |
| Youichi Iwakiri <[email protected]> (pg_copy_*) |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include <stdlib.h>
#define PHP_PGSQL_PRIVATE 1
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define SMART_STR_PREALLOC 512
#include "php.h"
#include "php_ini.h"
#include "ext/standard/php_standard.h"
#include "ext/standard/php_smart_str.h"
#include "php_pgsql.h"
#include "php_globals.h"
#include "zend_default_classes.h"
#if HAVE_PGSQL
#ifndef InvalidOid
#define InvalidOid ((Oid) 0)
#endif
#define PGSQL_ASSOC 1<<0
#define PGSQL_NUM 1<<1
#define PGSQL_BOTH (PGSQL_ASSOC|PGSQL_NUM)
#define PGSQL_STATUS_LONG 1
#define PGSQL_STATUS_STRING 2
#define PGSQL_MAX_LENGTH_OF_LONG 30
#define PGSQL_MAX_LENGTH_OF_DOUBLE 60
#define PGSQL_RETURN_OID(oid) do { \
if (oid > LONG_MAX) { \
smart_str s = {0}; \
smart_str_append_unsigned(&s, oid); \
smart_str_0(&s); \
RETURN_STRINGL(s.c, s.len, 0); \
} \
RETURN_LONG((long)oid); \
} while(0)
#if HAVE_PQSETNONBLOCKING
#define PQ_SETNONBLOCKING(pg_link, flag) PQsetnonblocking(pg_link, flag)
#else
#define PQ_SETNONBLOCKING(pg_link, flag) 0
#endif
#define CHECK_DEFAULT_LINK(x) if ((x) == -1) { php_error_docref(NULL TSRMLS_CC, E_WARNING, "No PostgreSQL link opened yet"); }
/* {{{ pgsql_functions[]
*/
function_entry pgsql_functions[] = {
/* connection functions */
PHP_FE(pg_connect, NULL)
PHP_FE(pg_pconnect, NULL)
PHP_FE(pg_close, NULL)
PHP_FE(pg_connection_status, NULL)
PHP_FE(pg_connection_busy, NULL)
PHP_FE(pg_connection_reset, NULL)
PHP_FE(pg_host, NULL)
PHP_FE(pg_dbname, NULL)
PHP_FE(pg_port, NULL)
PHP_FE(pg_tty, NULL)
PHP_FE(pg_options, NULL)
PHP_FE(pg_version, NULL)
PHP_FE(pg_ping, NULL)
#if HAVE_PQPARAMETERSTATUS
PHP_FE(pg_parameter_status, NULL)
#endif
/* query functions */
PHP_FE(pg_query, NULL)
PHP_FE(pg_send_query, NULL)
PHP_FE(pg_cancel_query, NULL)
/* result functions */
PHP_FE(pg_fetch_result, NULL)
PHP_FE(pg_fetch_row, NULL)
PHP_FE(pg_fetch_assoc, NULL)
PHP_FE(pg_fetch_array, NULL)
PHP_FE(pg_fetch_object, NULL)
PHP_FE(pg_fetch_all, NULL)
PHP_FE(pg_affected_rows,NULL)
PHP_FE(pg_get_result, NULL)
PHP_FE(pg_result_seek, NULL)
PHP_FE(pg_result_status,NULL)
PHP_FE(pg_free_result, NULL)
PHP_FE(pg_last_oid, NULL)
PHP_FE(pg_num_rows, NULL)
PHP_FE(pg_num_fields, NULL)
PHP_FE(pg_field_name, NULL)
PHP_FE(pg_field_num, NULL)
PHP_FE(pg_field_size, NULL)
PHP_FE(pg_field_type, NULL)
PHP_FE(pg_field_prtlen, NULL)
PHP_FE(pg_field_is_null,NULL)
/* async message function */
PHP_FE(pg_get_notify, NULL)
PHP_FE(pg_get_pid, NULL)
/* error message functions */
PHP_FE(pg_result_error, NULL)
PHP_FE(pg_last_error, NULL)
PHP_FE(pg_last_notice, NULL)
/* copy functions */
PHP_FE(pg_put_line, NULL)
PHP_FE(pg_end_copy, NULL)
PHP_FE(pg_copy_to, NULL)
PHP_FE(pg_copy_from, NULL)
/* debug functions */
PHP_FE(pg_trace, NULL)
PHP_FE(pg_untrace, NULL)
/* large object functions */
PHP_FE(pg_lo_create, NULL)
PHP_FE(pg_lo_unlink, NULL)
PHP_FE(pg_lo_open, NULL)
PHP_FE(pg_lo_close, NULL)
PHP_FE(pg_lo_read, NULL)
PHP_FE(pg_lo_write, NULL)
PHP_FE(pg_lo_read_all, NULL)
PHP_FE(pg_lo_import, NULL)
PHP_FE(pg_lo_export, NULL)
PHP_FE(pg_lo_seek, NULL)
PHP_FE(pg_lo_tell, NULL)
/* utility functions */
#if HAVE_PQESCAPE
PHP_FE(pg_escape_string,NULL)
PHP_FE(pg_escape_bytea, NULL)
PHP_FE(pg_unescape_bytea, NULL)
#endif
#if HAVE_PQCLIENTENCODING
PHP_FE(pg_client_encoding, NULL)
PHP_FE(pg_set_client_encoding, NULL)
#endif
/* misc function */
PHP_FE(pg_meta_data, NULL)
PHP_FE(pg_convert, NULL)
PHP_FE(pg_insert, NULL)
PHP_FE(pg_update, NULL)
PHP_FE(pg_delete, NULL)
PHP_FE(pg_select, NULL)
/* aliases for downwards compatibility */
PHP_FALIAS(pg_exec, pg_query, NULL)
PHP_FALIAS(pg_getlastoid, pg_last_oid, NULL)
PHP_FALIAS(pg_cmdtuples, pg_affected_rows, NULL)
PHP_FALIAS(pg_errormessage, pg_last_error, NULL)
PHP_FALIAS(pg_numrows, pg_num_rows, NULL)
PHP_FALIAS(pg_numfields, pg_num_fields, NULL)
PHP_FALIAS(pg_fieldname, pg_field_name, NULL)
PHP_FALIAS(pg_fieldsize, pg_field_size, NULL)
PHP_FALIAS(pg_fieldtype, pg_field_type, NULL)
PHP_FALIAS(pg_fieldnum, pg_field_num, NULL)
PHP_FALIAS(pg_fieldprtlen, pg_field_prtlen, NULL)
PHP_FALIAS(pg_fieldisnull, pg_field_is_null, NULL)
PHP_FALIAS(pg_freeresult, pg_free_result, NULL)
PHP_FALIAS(pg_result, pg_fetch_result, NULL)
PHP_FALIAS(pg_loreadall, pg_lo_read_all, NULL)
PHP_FALIAS(pg_locreate, pg_lo_create, NULL)
PHP_FALIAS(pg_lounlink, pg_lo_unlink, NULL)
PHP_FALIAS(pg_loopen, pg_lo_open, NULL)
PHP_FALIAS(pg_loclose, pg_lo_close, NULL)
PHP_FALIAS(pg_loread, pg_lo_read, NULL)
PHP_FALIAS(pg_lowrite, pg_lo_write, NULL)
PHP_FALIAS(pg_loimport, pg_lo_import, NULL)
PHP_FALIAS(pg_loexport, pg_lo_export, NULL)
#if HAVE_PQCLIENTENCODING
PHP_FALIAS(pg_clientencoding, pg_client_encoding, NULL)
PHP_FALIAS(pg_setclientencoding, pg_set_client_encoding, NULL)
#endif
{NULL, NULL, NULL}
};
/* }}} */
/* {{{ pgsql_module_entry
*/
zend_module_entry pgsql_module_entry = {
STANDARD_MODULE_HEADER,
"pgsql",
pgsql_functions,
PHP_MINIT(pgsql),
PHP_MSHUTDOWN(pgsql),
PHP_RINIT(pgsql),
PHP_RSHUTDOWN(pgsql),
PHP_MINFO(pgsql),
NO_VERSION_YET,
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef COMPILE_DL_PGSQL
ZEND_GET_MODULE(pgsql)
#endif
static int le_link, le_plink, le_result, le_lofp, le_string;
ZEND_DECLARE_MODULE_GLOBALS(pgsql);
/* {{{ _php_pgsql_trim_message */
static char * _php_pgsql_trim_message(const char *message, int *len)
{
register int i = strlen(message)-1;
if (i>1 && (message[i-1] == '\r' || message[i-1] == '\n') && message[i] == '.') {
--i;
}
while (i && (message[i] == '\r' || message[i] == '\n')) {
--i;
}
++i;
if (len) {
*len = i;
}
return estrndup(message, i);
}
/* }}} */
/* {{{ _php_pgsql_trim_result */
static inline char * _php_pgsql_trim_result(PGconn * pgsql, char **buf)
{
return *buf = _php_pgsql_trim_message(PQerrorMessage(pgsql), NULL);
}
/* }}} */
#define PQErrorMessageTrim(pgsql, buf) _php_pgsql_trim_result(pgsql, buf)
#define PHP_PQ_ERROR(text, pgsql) { \
char *msgbuf = _php_pgsql_trim_message(PQerrorMessage(pgsql), NULL); \
php_error_docref(NULL TSRMLS_CC, E_WARNING, text, msgbuf); \
efree(msgbuf); \
} \
/* {{{ php_pgsql_set_default_link
*/
static void php_pgsql_set_default_link(int id TSRMLS_DC)
{
zend_list_addref(id);
if (PGG(default_link) != -1) {
zend_list_delete(PGG(default_link));
}
PGG(default_link) = id;
}
/* }}} */
/* {{{ _close_pgsql_link
*/
static void _close_pgsql_link(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
PGconn *link = (PGconn *)rsrc->ptr;
PGresult *res;
while ((res = PQgetResult(link))) {
PQclear(res);
}
PQfinish(link);
PGG(num_links)--;
}
/* }}} */
/* {{{ _close_pgsql_plink
*/
static void _close_pgsql_plink(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
PGconn *link = (PGconn *)rsrc->ptr;
PGresult *res;
while ((res = PQgetResult(link))) {
PQclear(res);
}
PQfinish(link);
PGG(num_persistent)--;
PGG(num_links)--;
}
/* }}} */
/* {{{ _php_pgsql_notice_handler
*/
static void _php_pgsql_notice_handler(void *resource_id, const char *message)
{
php_pgsql_notice *notice;
TSRMLS_FETCH();
if (! PGG(ignore_notices)) {
notice = (php_pgsql_notice *)emalloc(sizeof(php_pgsql_notice));
notice->message = _php_pgsql_trim_message(message, ¬ice->len);
if (PGG(log_notices)) {
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "%s", notice->message);
}
zend_hash_index_update(&PGG(notices), *(int *)resource_id, (void **)¬ice, sizeof(php_pgsql_notice *), NULL);
}
}
/* }}} */
#define PHP_PGSQL_NOTICE_PTR_DTOR (void (*)(void *))_php_pgsql_notice_ptr_dtor
/* {{{ _php_pgsql_notice_dtor
*/
static void _php_pgsql_notice_ptr_dtor(void **ptr)
{
php_pgsql_notice *notice = (php_pgsql_notice *)*ptr;
efree(notice->message);
efree(notice);
}
/* }}} */
/* {{{ _rollback_transactions
*/
static int _rollback_transactions(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
PGconn *link;
PGresult *res;
int orig;
if (Z_TYPE_P(rsrc) != le_plink)
return 0;
link = (PGconn *) rsrc->ptr;
if (PQ_SETNONBLOCKING(link, 0)) {
php_error_docref("ref.pgsql" TSRMLS_CC, E_NOTICE, "Cannot set connection to blocking mode");
return -1;
}
while ((res = PQgetResult(link))) {
PQclear(res);
}
#if HAVE_PGTRANSACTIONSTATUS && HAVE_PQPROTOCOLVERSION
if ((PQprotocolVersion(link) >= 3 && PQtransactionStatus(link) != PQTRANS_IDLE) || PQprotocolVersion(link) < 3)
#endif
{
orig = PGG(ignore_notices);
PGG(ignore_notices) = 1;
#if HAVE_PGTRANSACTIONSTATUS && HAVE_PQPROTOCOLVERSION
res = PQexec(link,"ROLLBACK;");
#else
res = PQexec(link,"BEGIN;");
PQclear(res);
res = PQexec(link,"ROLLBACK;");
#endif
PQclear(res);
PGG(ignore_notices) = orig;
}
return 0;
}
/* }}} */
/* {{{ _free_ptr
*/
static void _free_ptr(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
pgLofp *lofp = (pgLofp *)rsrc->ptr;
efree(lofp);
}
/* }}} */
/* {{{ _free_result
*/
static void _free_result(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
pgsql_result_handle *pg_result = (pgsql_result_handle *)rsrc->ptr;
PQclear(pg_result->result);
efree(pg_result);
}
/* }}} */
/* {{{ PHP_INI
*/
PHP_INI_BEGIN()
STD_PHP_INI_BOOLEAN( "pgsql.allow_persistent", "1", PHP_INI_SYSTEM, OnUpdateBool, allow_persistent, zend_pgsql_globals, pgsql_globals)
STD_PHP_INI_ENTRY_EX("pgsql.max_persistent", "-1", PHP_INI_SYSTEM, OnUpdateLong, max_persistent, zend_pgsql_globals, pgsql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("pgsql.max_links", "-1", PHP_INI_SYSTEM, OnUpdateLong, max_links, zend_pgsql_globals, pgsql_globals, display_link_numbers)
STD_PHP_INI_BOOLEAN( "pgsql.auto_reset_persistent", "0", PHP_INI_SYSTEM, OnUpdateBool, auto_reset_persistent, zend_pgsql_globals, pgsql_globals)
STD_PHP_INI_BOOLEAN( "pgsql.ignore_notice", "0", PHP_INI_ALL, OnUpdateBool, ignore_notices, zend_pgsql_globals, pgsql_globals)
STD_PHP_INI_BOOLEAN( "pgsql.log_notice", "0", PHP_INI_ALL, OnUpdateBool, log_notices, zend_pgsql_globals, pgsql_globals)
PHP_INI_END()
/* }}} */
/* {{{ php_pgsql_init_globals
*/
static void php_pgsql_init_globals(zend_pgsql_globals *pgsql_globals)
{
memset(pgsql_globals, 0, sizeof(zend_pgsql_globals));
/* Initilize notice message hash at MINIT only */
zend_hash_init_ex(&pgsql_globals->notices, 0, NULL, PHP_PGSQL_NOTICE_PTR_DTOR, 1, 0);
}
/* }}} */
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(pgsql)
{
ZEND_INIT_MODULE_GLOBALS(pgsql, php_pgsql_init_globals, NULL);
REGISTER_INI_ENTRIES();
le_link = zend_register_list_destructors_ex(_close_pgsql_link, NULL, "pgsql link", module_number);
le_plink = zend_register_list_destructors_ex(NULL, _close_pgsql_plink, "pgsql link persistent", module_number);
le_result = zend_register_list_destructors_ex(_free_result, NULL, "pgsql result", module_number);
le_lofp = zend_register_list_destructors_ex(_free_ptr, NULL, "pgsql large object", module_number);
le_string = zend_register_list_destructors_ex(_free_ptr, NULL, "pgsql string", module_number);
/* For connection option */
REGISTER_LONG_CONSTANT("PGSQL_CONNECT_FORCE_NEW", PGSQL_CONNECT_FORCE_NEW, CONST_CS | CONST_PERSISTENT);
/* For pg_fetch_array() */
REGISTER_LONG_CONSTANT("PGSQL_ASSOC", PGSQL_ASSOC, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_NUM", PGSQL_NUM, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_BOTH", PGSQL_BOTH, CONST_CS | CONST_PERSISTENT);
/* For pg_connection_status() */
REGISTER_LONG_CONSTANT("PGSQL_CONNECTION_BAD", CONNECTION_BAD, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_CONNECTION_OK", CONNECTION_OK, CONST_CS | CONST_PERSISTENT);
/* For lo_seek() */
REGISTER_LONG_CONSTANT("PGSQL_SEEK_SET", SEEK_SET, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_SEEK_CUR", SEEK_CUR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_SEEK_END", SEEK_END, CONST_CS | CONST_PERSISTENT);
/* For pg_result_status() return value type */
REGISTER_LONG_CONSTANT("PGSQL_STATUS_LONG", PGSQL_STATUS_LONG, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_STATUS_STRING", PGSQL_STATUS_STRING, CONST_CS | CONST_PERSISTENT);
/* For pg_result_status() return value */
REGISTER_LONG_CONSTANT("PGSQL_EMPTY_QUERY", PGRES_EMPTY_QUERY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_COMMAND_OK", PGRES_COMMAND_OK, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_TUPLES_OK", PGRES_TUPLES_OK, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_COPY_OUT", PGRES_COPY_OUT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_COPY_IN", PGRES_COPY_IN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_BAD_RESPONSE", PGRES_BAD_RESPONSE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_NONFATAL_ERROR", PGRES_NONFATAL_ERROR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_FATAL_ERROR", PGRES_FATAL_ERROR, CONST_CS | CONST_PERSISTENT);
/* pg_convert options */
REGISTER_LONG_CONSTANT("PGSQL_CONV_IGNORE_DEFAULT", PGSQL_CONV_IGNORE_DEFAULT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_CONV_FORCE_NULL", PGSQL_CONV_FORCE_NULL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_CONV_IGNORE_NOT_NULL", PGSQL_CONV_IGNORE_NOT_NULL, CONST_CS | CONST_PERSISTENT);
/* pg_insert/update/delete/select options */
REGISTER_LONG_CONSTANT("PGSQL_DML_NO_CONV", PGSQL_DML_NO_CONV, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_DML_EXEC", PGSQL_DML_EXEC, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_DML_ASYNC", PGSQL_DML_ASYNC, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PGSQL_DML_STRING", PGSQL_DML_STRING, CONST_CS | CONST_PERSISTENT);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION
*/
PHP_MSHUTDOWN_FUNCTION(pgsql)
{
UNREGISTER_INI_ENTRIES();
zend_hash_destroy(&PGG(notices));
return SUCCESS;
}
/* }}} */
/* {{{ PHP_RINIT_FUNCTION
*/
PHP_RINIT_FUNCTION(pgsql)
{
PGG(default_link)=-1;
PGG(num_links) = PGG(num_persistent);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_RSHUTDOWN_FUNCTION
*/
PHP_RSHUTDOWN_FUNCTION(pgsql)
{
/* clean up notice messages */
zend_hash_clean(&PGG(notices));
/* clean up persistent connection */
zend_hash_apply(&EG(persistent_list), (apply_func_t) _rollback_transactions TSRMLS_CC);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(pgsql)
{
char buf[256];
php_info_print_table_start();
php_info_print_table_header(2, "PostgreSQL Support", "enabled");
#if HAVE_PG_CONFIG_H
php_info_print_table_row(2, "PostgreSQL(libpq) Version", PG_VERSION);
#ifdef HAVE_PGSQL_WITH_MULTIBYTE_SUPPORT
php_info_print_table_row(2, "Multibyte character support", "enabled");
#else
php_info_print_table_row(2, "Multibyte character support", "disabled");
#endif
#ifdef USE_SSL
php_info_print_table_row(2, "SSL support", "enabled");
#else
php_info_print_table_row(2, "SSL support", "disabled");
#endif
#endif /* HAVE_PG_CONFIG_H */
sprintf(buf, "%ld", PGG(num_persistent));
php_info_print_table_row(2, "Active Persistent Links", buf);
sprintf(buf, "%ld", PGG(num_links));
php_info_print_table_row(2, "Active Links", buf);
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
/* {{{ php_pgsql_do_connect
*/
static void php_pgsql_do_connect(INTERNAL_FUNCTION_PARAMETERS, int persistent)
{
char *host=NULL,*port=NULL,*options=NULL,*tty=NULL,*dbname=NULL,*connstring=NULL;
PGconn *pgsql;
smart_str str = {0};
zval **args[5];
int i, connect_type = 0;
PGresult *pg_result;
if (ZEND_NUM_ARGS() < 1 || ZEND_NUM_ARGS() > 5
|| zend_get_parameters_array_ex(ZEND_NUM_ARGS(), args) == FAILURE) {
WRONG_PARAM_COUNT;
}
smart_str_appends(&str, "pgsql");
for (i = 0; i < ZEND_NUM_ARGS(); i++) {
convert_to_string_ex(args[i]);
smart_str_appendc(&str, '_');
smart_str_appendl(&str, Z_STRVAL_PP(args[i]), Z_STRLEN_PP(args[i]));
}
smart_str_0(&str);
if (ZEND_NUM_ARGS() == 1) { /* new style, using connection string */
connstring = Z_STRVAL_PP(args[0]);
} else if (ZEND_NUM_ARGS() == 2 ) { /* Safe to add conntype_option, since 2 args was illegal */
connstring = Z_STRVAL_PP(args[0]);
convert_to_long_ex(args[1]);
connect_type = Z_LVAL_PP(args[1]);
} else {
host = Z_STRVAL_PP(args[0]);
port = Z_STRVAL_PP(args[1]);
dbname = Z_STRVAL_PP(args[ZEND_NUM_ARGS()-1]);
switch (ZEND_NUM_ARGS()) {
case 5:
tty = Z_STRVAL_PP(args[3]);
/* fall through */
case 4:
options = Z_STRVAL_PP(args[2]);
break;
}
}
if (persistent && PGG(allow_persistent)) {
list_entry *le;
/* try to find if we already have this link in our persistent list */
if (zend_hash_find(&EG(persistent_list), str.c, str.len+1, (void **) &le)==FAILURE) { /* we don't */
list_entry new_le;
if (PGG(max_links)!=-1 && PGG(num_links)>=PGG(max_links)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Cannot create new link. Too many open links (%ld)", PGG(num_links));
goto err;
}
if (PGG(max_persistent)!=-1 && PGG(num_persistent)>=PGG(max_persistent)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Cannot create new link. Too many open persistent links (%ld)", PGG(num_persistent));
goto err;
}
/* create the link */
if (connstring) {
pgsql=PQconnectdb(connstring);
} else {
pgsql=PQsetdb(host,port,options,tty,dbname);
}
if (pgsql==NULL || PQstatus(pgsql)==CONNECTION_BAD) {
PHP_PQ_ERROR("Unable to connect to PostgreSQL server: %s", pgsql)
if (pgsql) {
PQfinish(pgsql);
}
goto err;
}
/* hash it up */
Z_TYPE(new_le) = le_plink;
new_le.ptr = pgsql;
if (zend_hash_update(&EG(persistent_list), str.c, str.len+1, (void *) &new_le, sizeof(list_entry), NULL)==FAILURE) {
goto err;
}
PGG(num_links)++;
PGG(num_persistent)++;
} else { /* we do */
if (Z_TYPE_P(le) != le_plink) {
RETURN_FALSE;
}
/* ensure that the link did not die */
if (PGG(auto_reset_persistent) & 1) {
/* need to send & get something from backend to
make sure we catch CONNECTION_BAD everytime */
PGresult *pg_result;
pg_result = PQexec(le->ptr, "select 1");
PQclear(pg_result);
}
if (PQstatus(le->ptr)==CONNECTION_BAD) { /* the link died */
if (le->ptr == NULL) {
if (connstring) {
le->ptr=PQconnectdb(connstring);
} else {
le->ptr=PQsetdb(host,port,options,tty,dbname);
}
}
else {
PQreset(le->ptr);
}
if (le->ptr==NULL || PQstatus(le->ptr)==CONNECTION_BAD) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,"PostgreSQL link lost, unable to reconnect");
zend_hash_del(&EG(persistent_list),str.c,str.len+1);
goto err;
}
}
pgsql = (PGconn *) le->ptr;
#if HAVE_PQPROTOCOLVERSION && HAVE_PQPARAMETERSTATUS
if (PQprotocolVersion(pgsql) >= 3 && atof(PQparameterStatus(pgsql, "server_version")) >= 7.2) {
#else
if (atof(PG_VERSION) >= 7.2) {
#endif
pg_result = PQexec(pgsql, "RESET ALL;");
PQclear(pg_result);
}
}
ZEND_REGISTER_RESOURCE(return_value, pgsql, le_plink);
} else { /* Non persistent connection */
list_entry *index_ptr,new_index_ptr;
/* first we check the hash for the hashed_details key. if it exists,
* it should point us to the right offset where the actual pgsql link sits.
* if it doesn't, open a new pgsql link, add it to the resource list,
* and add a pointer to it with hashed_details as the key.
*/
if (!(connect_type & PGSQL_CONNECT_FORCE_NEW)
&& zend_hash_find(&EG(regular_list),str.c,str.len+1,(void **) &index_ptr)==SUCCESS) {
int type,link;
void *ptr;
if (Z_TYPE_P(index_ptr) != le_index_ptr) {
RETURN_FALSE;
}
link = (int) index_ptr->ptr;
ptr = zend_list_find(link,&type); /* check if the link is still there */
if (ptr && (type==le_link || type==le_plink)) {
Z_LVAL_P(return_value) = link;
zend_list_addref(link);
php_pgsql_set_default_link(link TSRMLS_CC);
Z_TYPE_P(return_value) = IS_RESOURCE;
goto cleanup;
} else {
zend_hash_del(&EG(regular_list),str.c,str.len+1);
}
}
if (PGG(max_links)!=-1 && PGG(num_links)>=PGG(max_links)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot create new link. Too many open links (%ld)", PGG(num_links));
goto err;
}
if (connstring) {
pgsql = PQconnectdb(connstring);
} else {
pgsql = PQsetdb(host,port,options,tty,dbname);
}
if (pgsql==NULL || PQstatus(pgsql)==CONNECTION_BAD) {
PHP_PQ_ERROR("Unable to connect to PostgreSQL server: %s", pgsql);
goto err;
}
/* add it to the list */
ZEND_REGISTER_RESOURCE(return_value, pgsql, le_link);
/* add it to the hash */
new_index_ptr.ptr = (void *) Z_LVAL_P(return_value);
Z_TYPE(new_index_ptr) = le_index_ptr;
if (zend_hash_update(&EG(regular_list),str.c,str.len+1,(void *) &new_index_ptr, sizeof(list_entry), NULL)==FAILURE) {
goto err;
}
PGG(num_links)++;
}
/* set notice processer */
if (! PGG(ignore_notices) && Z_TYPE_P(return_value) == IS_RESOURCE) {
PQsetNoticeProcessor(pgsql, _php_pgsql_notice_handler, (void *)&Z_RESVAL_P(return_value));
}
php_pgsql_set_default_link(Z_LVAL_P(return_value) TSRMLS_CC);
cleanup:
smart_str_free(&str);
return;
err:
smart_str_free(&str);
RETURN_FALSE;
}
/* }}} */
#if 0
/* {{{ php_pgsql_get_default_link
*/
static int php_pgsql_get_default_link(INTERNAL_FUNCTION_PARAMETERS)
{
if (PGG(default_link)==-1) { /* no link opened yet, implicitly open one */
ht = 0;
php_pgsql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU,0);
}
return PGG(default_link);
}
/* }}} */
#endif
/* {{{ proto resource pg_connect(string connection_string[, int connect_type] | [string host, string port [, string options [, string tty,]]] string database)
Open a PostgreSQL connection */
PHP_FUNCTION(pg_connect)
{
php_pgsql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU,0);
}
/* }}} */
/* {{{ proto resource pg_pconnect(string connection_string | [string host, string port [, string options [, string tty,]]] string database)
Open a persistent PostgreSQL connection */
PHP_FUNCTION(pg_pconnect)
{
php_pgsql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);
}
/* }}} */
/* {{{ proto bool pg_close([resource connection])
Close a PostgreSQL connection */
PHP_FUNCTION(pg_close)
{
zval **pgsql_link = NULL;
int id;
PGconn *pgsql;
switch (ZEND_NUM_ARGS()) {
case 0:
id = PGG(default_link);
CHECK_DEFAULT_LINK(id);
break;
case 1:
if (zend_get_parameters_ex(1, &pgsql_link)==FAILURE) {
RETURN_FALSE;
}
id = -1;
break;
default:
WRONG_PARAM_COUNT;
break;
}
if (pgsql_link == NULL && id == -1) {
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE2(pgsql, PGconn *, pgsql_link, id, "PostgreSQL link", le_link, le_plink);
if (id==-1) { /* explicit resource number */
zend_list_delete(Z_RESVAL_PP(pgsql_link));
}
if (id!=-1
|| (pgsql_link && Z_RESVAL_PP(pgsql_link)==PGG(default_link))) {
zend_list_delete(PGG(default_link));
PGG(default_link) = -1;
}
RETURN_TRUE;
}
/* }}} */
#define PHP_PG_DBNAME 1
#define PHP_PG_ERROR_MESSAGE 2
#define PHP_PG_OPTIONS 3
#define PHP_PG_PORT 4
#define PHP_PG_TTY 5
#define PHP_PG_HOST 6
#define PHP_PG_VERSION 7
/* {{{ php_pgsql_get_link_info
*/
static void php_pgsql_get_link_info(INTERNAL_FUNCTION_PARAMETERS, int entry_type)
{
zval **pgsql_link = NULL;
int id = -1;
PGconn *pgsql;
char *msgbuf;
switch(ZEND_NUM_ARGS()) {
case 0:
id = PGG(default_link);
CHECK_DEFAULT_LINK(id);
break;
case 1:
if (zend_get_parameters_ex(1, &pgsql_link)==FAILURE) {
RETURN_FALSE;
}
break;
default:
WRONG_PARAM_COUNT;
break;
}
if (pgsql_link == NULL && id == -1) {
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE2(pgsql, PGconn *, pgsql_link, id, "PostgreSQL link", le_link, le_plink);
switch(entry_type) {
case PHP_PG_DBNAME:
Z_STRVAL_P(return_value) = PQdb(pgsql);
break;
case PHP_PG_ERROR_MESSAGE:
RETURN_STRING(PQErrorMessageTrim(pgsql, &msgbuf), 0);
return;
case PHP_PG_OPTIONS:
Z_STRVAL_P(return_value) = PQoptions(pgsql);
break;
case PHP_PG_PORT:
Z_STRVAL_P(return_value) = PQport(pgsql);
break;
case PHP_PG_TTY:
Z_STRVAL_P(return_value) = PQtty(pgsql);
break;
case PHP_PG_HOST:
Z_STRVAL_P(return_value) = PQhost(pgsql);
break;
case PHP_PG_VERSION:
array_init(return_value);
add_assoc_string(return_value, "client", PG_VERSION, 1);
#if HAVE_PQPROTOCOLVERSION
add_assoc_long(return_value, "protocol", PQprotocolVersion(pgsql));
#if HAVE_PQPARAMETERSTATUS
if (PQprotocolVersion(pgsql) >= 3) {
add_assoc_string(return_value, "server", (char*)PQparameterStatus(pgsql, "server_version"), 1);
}
#endif
#endif
return;
default:
RETURN_FALSE;
}
if (Z_STRVAL_P(return_value)) {
Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
Z_STRVAL_P(return_value) = (char *) estrdup(Z_STRVAL_P(return_value));
} else {
Z_STRLEN_P(return_value) = 0;
Z_STRVAL_P(return_value) = (char *) estrdup("");
}
Z_TYPE_P(return_value) = IS_STRING;
}
/* }}} */
/* {{{ proto string pg_dbname([resource connection])
Get the database name */
PHP_FUNCTION(pg_dbname)
{
php_pgsql_get_link_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_PG_DBNAME);
}
/* }}} */
/* {{{ proto string pg_last_error([resource connection])
Get the error message string */
PHP_FUNCTION(pg_last_error)
{
php_pgsql_get_link_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_PG_ERROR_MESSAGE);
}
/* }}} */
/* {{{ proto string pg_options([resource connection])
Get the options associated with the connection */
PHP_FUNCTION(pg_options)
{
php_pgsql_get_link_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_PG_OPTIONS);
}
/* }}} */
/* {{{ proto int pg_port([resource connection])
Return the port number associated with the connection */
PHP_FUNCTION(pg_port)
{
php_pgsql_get_link_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_PG_PORT);
}
/* }}} */
/* {{{ proto string pg_tty([resource connection])
Return the tty name associated with the connection */
PHP_FUNCTION(pg_tty)
{
php_pgsql_get_link_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_PG_TTY);
}
/* }}} */
/* {{{ proto string pg_host([resource connection])
Returns the host name associated with the connection */
PHP_FUNCTION(pg_host)
{
php_pgsql_get_link_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_PG_HOST);
}
/* }}} */
/* {{{ proto array pg_version([resource connection])
Returns an array with client, protocol and server version (when available) */
PHP_FUNCTION(pg_version)
{
php_pgsql_get_link_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_PG_VERSION);
}
/* }}} */
#if HAVE_PQPARAMETERSTATUS
/* {{{ proto string|false pg_parameter_status([resource connection,] string param_name)
Returns the value of a server parameter */
PHP_FUNCTION(pg_parameter_status)
{
zval *pgsql_link;
int id;
PGconn *pgsql;
char *param;
int len;
if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "rs", &pgsql_link, ¶m, &len) == SUCCESS) {
id = -1;
} else if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", ¶m, &len) == SUCCESS) {
pgsql_link = NULL;
id = PGG(default_link);
} else {
RETURN_FALSE;
}
if (pgsql_link == NULL && id == -1) {
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE2(pgsql, PGconn *, &pgsql_link, id, "PostgreSQL link", le_link, le_plink);
param = (char*)PQparameterStatus(pgsql, param);
if (param) {
RETURN_STRING(param, 1);
} else {
RETURN_FALSE;
}
}
/* }}} */
#endif
/* {{{ proto bool pg_ping([resource connection])
Ping database. If connection is bad, try to reconnect. */
PHP_FUNCTION(pg_ping)
{
zval *pgsql_link;
int id;
PGconn *pgsql;
PGresult *res;
if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "r", &pgsql_link) == SUCCESS) {
id = -1;
} else {
pgsql_link = NULL;
id = PGG(default_link);
}
if (pgsql_link == NULL && id == -1) {
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE2(pgsql, PGconn *, &pgsql_link, id, "PostgreSQL link", le_link, le_plink);
/* ping connection */
res = PQexec(pgsql, "SELECT 1;");
PQclear(res);
/* check status. */
if (PQstatus(pgsql) == CONNECTION_OK)