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freebsd-nq/contrib/apr-util/dbd/apr_dbd_mysql.c
Peter Wemm 4705e3668d Update subversion-1.8.0 -> 1.8.1. Update supporting 
components: apr-1.4.6 -> 1.4.8 and apr-util-1.4.1 -> 1.5.2.

This is a post point-zero bug-fix / fix-sharp-edges release, including
some workarounds for UTF-8 for people who haven't yet turned on WITH_ICONV.
2013-07-28 06:02:40 +00:00

1306 lines
38 KiB
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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "apu.h"
#if APU_HAVE_MYSQL
#include "apu_version.h"
#include "apu_config.h"
#include <ctype.h>
#include <stdlib.h>
#if defined(HAVE_MYSQL_MYSQL_H)
#if defined(HAVE_MYSQL_MY_GLOBAL_H)
#include <mysql/my_global.h>
#if defined(HAVE_MYSQL_MY_SYS_H)
#include <mysql/my_sys.h>
#endif
#endif
#include <mysql/mysql.h>
#include <mysql/errmsg.h>
#else /* !defined(HAVE_MYSQL_MYSQL_H) */
#if defined(HAVE_MY_GLOBAL_H)
#include <my_global.h>
#if defined(HAVE_MY_SYS_H)
#include <my_sys.h>
#endif
#endif
#include <mysql.h>
#include <errmsg.h>
#endif
#include "apr_strings.h"
#include "apr_lib.h"
#include "apr_buckets.h"
#include "apr_dbd_internal.h"
/* default maximum field size 1 MB */
#define FIELDSIZE 1048575
struct apr_dbd_prepared_t {
MYSQL_STMT* stmt;
int nargs;
int nvals;
apr_dbd_type_e *types;
};
struct apr_dbd_transaction_t {
int mode;
int errnum;
apr_dbd_t *handle;
};
struct apr_dbd_t {
MYSQL* conn ;
apr_dbd_transaction_t* trans ;
unsigned long fldsz;
};
struct apr_dbd_results_t {
int random;
MYSQL_RES *res;
MYSQL_STMT *statement;
MYSQL_BIND *bind;
apr_pool_t *pool;
};
struct apr_dbd_row_t {
MYSQL_ROW row;
apr_dbd_results_t *res;
unsigned long *len;
};
/* MySQL specific bucket for BLOB types */
typedef struct apr_bucket_lob apr_bucket_lob;
/**
* A bucket referring to a MySQL BLOB
*/
struct apr_bucket_lob {
/** Number of buckets using this memory */
apr_bucket_refcount refcount;
/** The row this bucket refers to */
const apr_dbd_row_t *row;
/** The column this bucket refers to */
int col;
/** The pool into which any needed structures should
* be created while reading from this bucket */
apr_pool_t *readpool;
};
static void lob_bucket_destroy(void *data);
static apr_status_t lob_bucket_read(apr_bucket *e, const char **str,
apr_size_t *len, apr_read_type_e block);
static apr_bucket *apr_bucket_lob_make(apr_bucket *b,
const apr_dbd_row_t *row, int col,
apr_off_t offset, apr_size_t len,
apr_pool_t *p);
static apr_bucket *apr_bucket_lob_create(const apr_dbd_row_t *row, int col,
apr_off_t offset,
apr_size_t len, apr_pool_t *p,
apr_bucket_alloc_t *list);
static int dbd_mysql_num_cols(apr_dbd_results_t *res);
static const apr_bucket_type_t apr_bucket_type_lob = {
"LOB", 5, APR_BUCKET_DATA,
lob_bucket_destroy,
lob_bucket_read,
apr_bucket_setaside_notimpl,
apr_bucket_shared_split,
apr_bucket_shared_copy
};
static void lob_bucket_destroy(void *data)
{
apr_bucket_lob *f = data;
if (apr_bucket_shared_destroy(f)) {
/* no need to destroy database objects here; it will get
* done automatically when the pool gets cleaned up */
apr_bucket_free(f);
}
}
static apr_status_t lob_bucket_read(apr_bucket *e, const char **str,
apr_size_t *len, apr_read_type_e block)
{
apr_bucket_lob *a = e->data;
const apr_dbd_row_t *row = a->row;
apr_dbd_results_t *res = row->res;
int col = a->col;
apr_bucket *b = NULL;
int rv;
apr_size_t blength = e->length; /* bytes remaining in file past offset */
apr_off_t boffset = e->start;
MYSQL_BIND *bind = &res->bind[col];
*str = NULL; /* in case we die prematurely */
/* fetch from offset if not at the beginning */
if (boffset > 0) {
rv = mysql_stmt_fetch_column(res->statement, bind, col,
(unsigned long) boffset);
if (rv != 0) {
return APR_EGENERAL;
}
}
blength -= blength > bind->buffer_length ? bind->buffer_length : blength;
*len = e->length - blength;
*str = bind->buffer;
/* allocate new buffer, since we used this one for the bucket */
bind->buffer = apr_palloc(res->pool, bind->buffer_length);
/*
* Change the current bucket to refer to what we read,
* even if we read nothing because we hit EOF.
*/
apr_bucket_pool_make(e, *str, *len, res->pool);
/* If we have more to read from the field, then create another bucket */
if (blength > 0) {
/* for efficiency, we can just build a new apr_bucket struct
* to wrap around the existing LOB bucket */
b = apr_bucket_alloc(sizeof(*b), e->list);
b->start = boffset + *len;
b->length = blength;
b->data = a;
b->type = &apr_bucket_type_lob;
b->free = apr_bucket_free;
b->list = e->list;
APR_BUCKET_INSERT_AFTER(e, b);
}
else {
lob_bucket_destroy(a);
}
return APR_SUCCESS;
}
static apr_bucket *apr_bucket_lob_make(apr_bucket *b,
const apr_dbd_row_t *row, int col,
apr_off_t offset, apr_size_t len,
apr_pool_t *p)
{
apr_bucket_lob *f;
f = apr_bucket_alloc(sizeof(*f), b->list);
f->row = row;
f->col = col;
f->readpool = p;
b = apr_bucket_shared_make(b, f, offset, len);
b->type = &apr_bucket_type_lob;
return b;
}
static apr_bucket *apr_bucket_lob_create(const apr_dbd_row_t *row, int col,
apr_off_t offset,
apr_size_t len, apr_pool_t *p,
apr_bucket_alloc_t *list)
{
apr_bucket *b = apr_bucket_alloc(sizeof(*b), list);
APR_BUCKET_INIT(b);
b->free = apr_bucket_free;
b->list = list;
return apr_bucket_lob_make(b, row, col, offset, len, p);
}
static apr_status_t free_result(void *data)
{
mysql_free_result(data);
return APR_SUCCESS;
}
static int dbd_mysql_select(apr_pool_t *pool, apr_dbd_t *sql,
apr_dbd_results_t **results,
const char *query, int seek)
{
int sz;
int ret;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
ret = mysql_query(sql->conn, query);
if (!ret) {
if (sz = mysql_field_count(sql->conn), sz > 0) {
if (!*results) {
*results = apr_palloc(pool, sizeof(apr_dbd_results_t));
}
(*results)->random = seek;
(*results)->statement = NULL;
(*results)->pool = pool;
if (seek) {
(*results)->res = mysql_store_result(sql->conn);
}
else {
(*results)->res = mysql_use_result(sql->conn);
}
apr_pool_cleanup_register(pool, (*results)->res,
free_result,apr_pool_cleanup_null);
}
} else {
ret = mysql_errno(sql->conn);
}
if (TXN_NOTICE_ERRORS(sql->trans)) {
sql->trans->errnum = ret;
}
return ret;
}
static const char *dbd_mysql_get_name(const apr_dbd_results_t *res, int n)
{
if ((n < 0) || (n >= (int) mysql_num_fields(res->res))) {
return NULL;
}
return mysql_fetch_fields(res->res)[n].name;
}
static int dbd_mysql_get_row(apr_pool_t *pool, apr_dbd_results_t *res,
apr_dbd_row_t **row, int rownum)
{
MYSQL_ROW r = NULL;
int ret = 0;
if (res->statement) {
if (res->random) {
if (rownum > 0) {
mysql_stmt_data_seek(res->statement, (my_ulonglong) --rownum);
}
else {
return -1; /* invalid row */
}
}
ret = mysql_stmt_fetch(res->statement);
switch (ret) {
case 1:
ret = mysql_stmt_errno(res->statement);
break;
case MYSQL_NO_DATA:
ret = -1;
break;
default:
ret = 0; /* bad luck - get_entry will deal with this */
break;
}
}
else {
if (res->random) {
if (rownum > 0) {
mysql_data_seek(res->res, (my_ulonglong) --rownum);
}
else {
return -1; /* invalid row */
}
}
r = mysql_fetch_row(res->res);
if (r == NULL) {
ret = -1;
}
}
if (ret == 0) {
if (!*row) {
*row = apr_palloc(pool, sizeof(apr_dbd_row_t));
}
(*row)->row = r;
(*row)->res = res;
(*row)->len = mysql_fetch_lengths(res->res);
}
else {
apr_pool_cleanup_run(res->pool, res->res, free_result);
}
return ret;
}
#if 0
/* An improved API that was proposed but not followed up */
static int dbd_mysql_get_entry(const apr_dbd_row_t *row, int n,
apr_dbd_datum_t *val)
{
MYSQL_BIND *bind;
if (dbd_mysql_num_cols(row->res) <= n) {
return NULL;
}
if (row->res->statement) {
bind = &row->res->bind[n];
if (mysql_stmt_fetch_column(row->res->statement, bind, n, 0) != 0) {
val->type = APR_DBD_VALUE_NULL;
return -1;
}
if (*bind->is_null) {
val->type = APR_DBD_VALUE_NULL;
return -1;
}
else {
val->type = APR_DBD_VALUE_STRING;
val->value.stringval = bind->buffer;
}
}
else {
val->type = APR_DBD_VALUE_STRING;
val->value.stringval = row->row[n];
}
return 0;
}
#else
static const char *dbd_mysql_get_entry(const apr_dbd_row_t *row, int n)
{
MYSQL_BIND *bind;
if (dbd_mysql_num_cols(row->res) <= n) {
return NULL;
}
if (row->res->statement) {
bind = &row->res->bind[n];
if (mysql_stmt_fetch_column(row->res->statement, bind, n, 0) != 0) {
return NULL;
}
if (*bind->is_null) {
return NULL;
}
else {
return bind->buffer;
}
}
else {
return row->row[n];
}
return NULL;
}
#endif
static apr_status_t dbd_mysql_datum_get(const apr_dbd_row_t *row, int n,
apr_dbd_type_e type, void *data)
{
if (row->res->statement) {
MYSQL_BIND *bind = &row->res->bind[n];
unsigned long len = *bind->length;
if (mysql_stmt_fetch_column(row->res->statement, bind, n, 0) != 0) {
return APR_EGENERAL;
}
if (*bind->is_null) {
return APR_ENOENT;
}
switch (type) {
case APR_DBD_TYPE_TINY:
*(char*)data = atoi(bind->buffer);
break;
case APR_DBD_TYPE_UTINY:
*(unsigned char*)data = atoi(bind->buffer);
break;
case APR_DBD_TYPE_SHORT:
*(short*)data = atoi(bind->buffer);
break;
case APR_DBD_TYPE_USHORT:
*(unsigned short*)data = atoi(bind->buffer);
break;
case APR_DBD_TYPE_INT:
*(int*)data = atoi(bind->buffer);
break;
case APR_DBD_TYPE_UINT:
*(unsigned int*)data = atoi(bind->buffer);
break;
case APR_DBD_TYPE_LONG:
*(long*)data = atol(bind->buffer);
break;
case APR_DBD_TYPE_ULONG:
*(unsigned long*)data = atol(bind->buffer);
break;
case APR_DBD_TYPE_LONGLONG:
*(apr_int64_t*)data = apr_atoi64(bind->buffer);
break;
case APR_DBD_TYPE_ULONGLONG:
*(apr_uint64_t*)data = apr_atoi64(bind->buffer);
break;
case APR_DBD_TYPE_FLOAT:
*(float*)data = (float) atof(bind->buffer);
break;
case APR_DBD_TYPE_DOUBLE:
*(double*)data = atof(bind->buffer);
break;
case APR_DBD_TYPE_STRING:
case APR_DBD_TYPE_TEXT:
case APR_DBD_TYPE_TIME:
case APR_DBD_TYPE_DATE:
case APR_DBD_TYPE_DATETIME:
case APR_DBD_TYPE_TIMESTAMP:
case APR_DBD_TYPE_ZTIMESTAMP:
*((char*)bind->buffer+bind->buffer_length-1) = '\0';
*(char**)data = bind->buffer;
break;
case APR_DBD_TYPE_BLOB:
case APR_DBD_TYPE_CLOB:
{
apr_bucket *e;
apr_bucket_brigade *b = (apr_bucket_brigade*)data;
e = apr_bucket_lob_create(row, n, 0, len,
row->res->pool, b->bucket_alloc);
APR_BRIGADE_INSERT_TAIL(b, e);
}
break;
case APR_DBD_TYPE_NULL:
*(void**)data = NULL;
break;
default:
return APR_EGENERAL;
}
}
else {
if (row->row[n] == NULL) {
return APR_ENOENT;
}
switch (type) {
case APR_DBD_TYPE_TINY:
*(char*)data = atoi(row->row[n]);
break;
case APR_DBD_TYPE_UTINY:
*(unsigned char*)data = atoi(row->row[n]);
break;
case APR_DBD_TYPE_SHORT:
*(short*)data = atoi(row->row[n]);
break;
case APR_DBD_TYPE_USHORT:
*(unsigned short*)data = atoi(row->row[n]);
break;
case APR_DBD_TYPE_INT:
*(int*)data = atoi(row->row[n]);
break;
case APR_DBD_TYPE_UINT:
*(unsigned int*)data = atoi(row->row[n]);
break;
case APR_DBD_TYPE_LONG:
*(long*)data = atol(row->row[n]);
break;
case APR_DBD_TYPE_ULONG:
*(unsigned long*)data = atol(row->row[n]);
break;
case APR_DBD_TYPE_LONGLONG:
*(apr_int64_t*)data = apr_atoi64(row->row[n]);
break;
case APR_DBD_TYPE_ULONGLONG:
*(apr_uint64_t*)data = apr_atoi64(row->row[n]);
break;
case APR_DBD_TYPE_FLOAT:
*(float*)data = (float) atof(row->row[n]);
break;
case APR_DBD_TYPE_DOUBLE:
*(double*)data = atof(row->row[n]);
break;
case APR_DBD_TYPE_STRING:
case APR_DBD_TYPE_TEXT:
case APR_DBD_TYPE_TIME:
case APR_DBD_TYPE_DATE:
case APR_DBD_TYPE_DATETIME:
case APR_DBD_TYPE_TIMESTAMP:
case APR_DBD_TYPE_ZTIMESTAMP:
*(char**)data = row->row[n];
break;
case APR_DBD_TYPE_BLOB:
case APR_DBD_TYPE_CLOB:
{
apr_bucket *e;
apr_bucket_brigade *b = (apr_bucket_brigade*)data;
e = apr_bucket_pool_create(row->row[n], row->len[n],
row->res->pool, b->bucket_alloc);
APR_BRIGADE_INSERT_TAIL(b, e);
}
break;
case APR_DBD_TYPE_NULL:
*(void**)data = NULL;
break;
default:
return APR_EGENERAL;
}
}
return 0;
}
static const char *dbd_mysql_error(apr_dbd_t *sql, int n)
{
return mysql_error(sql->conn);
}
static int dbd_mysql_query(apr_dbd_t *sql, int *nrows, const char *query)
{
int ret;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
ret = mysql_query(sql->conn, query);
if (ret != 0) {
ret = mysql_errno(sql->conn);
}
*nrows = (int) mysql_affected_rows(sql->conn);
if (TXN_NOTICE_ERRORS(sql->trans)) {
sql->trans->errnum = ret;
}
return ret;
}
static const char *dbd_mysql_escape(apr_pool_t *pool, const char *arg,
apr_dbd_t *sql)
{
unsigned long len = strlen(arg);
char *ret = apr_palloc(pool, 2*len + 1);
mysql_real_escape_string(sql->conn, ret, arg, len);
return ret;
}
static apr_status_t stmt_close(void *data)
{
mysql_stmt_close(data);
return APR_SUCCESS;
}
static int dbd_mysql_prepare(apr_pool_t *pool, apr_dbd_t *sql,
const char *query, const char *label,
int nargs, int nvals, apr_dbd_type_e *types,
apr_dbd_prepared_t **statement)
{
/* Translate from apr_dbd to native query format */
int ret;
if (!*statement) {
*statement = apr_palloc(pool, sizeof(apr_dbd_prepared_t));
}
(*statement)->stmt = mysql_stmt_init(sql->conn);
if ((*statement)->stmt) {
apr_pool_cleanup_register(pool, (*statement)->stmt,
stmt_close, apr_pool_cleanup_null);
ret = mysql_stmt_prepare((*statement)->stmt, query, strlen(query));
if (ret != 0) {
ret = mysql_stmt_errno((*statement)->stmt);
}
(*statement)->nargs = nargs;
(*statement)->nvals = nvals;
(*statement)->types = types;
return ret;
}
return CR_OUT_OF_MEMORY;
}
static void dbd_mysql_bind(apr_dbd_prepared_t *statement,
const char **values, MYSQL_BIND *bind)
{
int i, j;
for (i = 0, j = 0; i < statement->nargs; i++, j++) {
bind[i].length = &bind[i].buffer_length;
bind[i].is_unsigned = 0;
bind[i].is_null = NULL;
if (values[j] == NULL) {
bind[i].buffer_type = MYSQL_TYPE_NULL;
}
else {
switch (statement->types[i]) {
case APR_DBD_TYPE_BLOB:
case APR_DBD_TYPE_CLOB:
bind[i].buffer_type = MYSQL_TYPE_LONG_BLOB;
bind[i].buffer = (void*)values[j];
bind[i].buffer_length = atol(values[++j]);
/* skip table and column */
j += 2;
break;
default:
bind[i].buffer_type = MYSQL_TYPE_VAR_STRING;
bind[i].buffer = (void*)values[j];
bind[i].buffer_length = strlen(values[j]);
break;
}
}
}
return;
}
static int dbd_mysql_pquery_internal(apr_pool_t *pool, apr_dbd_t *sql,
int *nrows, apr_dbd_prepared_t *statement,
MYSQL_BIND *bind)
{
int ret;
ret = mysql_stmt_bind_param(statement->stmt, bind);
if (ret != 0) {
*nrows = 0;
ret = mysql_stmt_errno(statement->stmt);
}
else {
ret = mysql_stmt_execute(statement->stmt);
if (ret != 0) {
ret = mysql_stmt_errno(statement->stmt);
}
*nrows = (int) mysql_stmt_affected_rows(statement->stmt);
}
return ret;
}
static int dbd_mysql_pquery(apr_pool_t *pool, apr_dbd_t *sql,
int *nrows, apr_dbd_prepared_t *statement,
const char **values)
{
MYSQL_BIND *bind;
int ret;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
bind = apr_palloc(pool, statement->nargs * sizeof(MYSQL_BIND));
dbd_mysql_bind(statement, values, bind);
ret = dbd_mysql_pquery_internal(pool, sql, nrows, statement, bind);
if (TXN_NOTICE_ERRORS(sql->trans)) {
sql->trans->errnum = ret;
}
return ret;
}
static int dbd_mysql_pvquery(apr_pool_t *pool, apr_dbd_t *sql, int *nrows,
apr_dbd_prepared_t *statement, va_list args)
{
const char **values;
int i;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
values = apr_palloc(pool, sizeof(*values) * statement->nvals);
for (i = 0; i < statement->nvals; i++) {
values[i] = va_arg(args, const char*);
}
return dbd_mysql_pquery(pool, sql, nrows, statement, values);
}
static int dbd_mysql_pselect_internal(apr_pool_t *pool, apr_dbd_t *sql,
apr_dbd_results_t **res,
apr_dbd_prepared_t *statement,
int random, MYSQL_BIND *bind)
{
int nfields, i;
my_bool *is_nullr;
#if MYSQL_VERSION_ID >= 50000
my_bool *error;
#endif
int ret;
unsigned long *length, maxlen;
ret = mysql_stmt_bind_param(statement->stmt, bind);
if (ret == 0) {
ret = mysql_stmt_execute(statement->stmt);
if (!ret) {
if (!*res) {
*res = apr_pcalloc(pool, sizeof(apr_dbd_results_t));
}
(*res)->random = random;
(*res)->statement = statement->stmt;
(*res)->res = mysql_stmt_result_metadata(statement->stmt);
(*res)->pool = pool;
apr_pool_cleanup_register(pool, (*res)->res,
free_result, apr_pool_cleanup_null);
nfields = mysql_num_fields((*res)->res);
if (!(*res)->bind) {
(*res)->bind = apr_palloc(pool, nfields*sizeof(MYSQL_BIND));
length = apr_pcalloc(pool, nfields*sizeof(unsigned long));
#if MYSQL_VERSION_ID >= 50000
error = apr_palloc(pool, nfields*sizeof(my_bool));
#endif
is_nullr = apr_pcalloc(pool, nfields*sizeof(my_bool));
for ( i = 0; i < nfields; ++i ) {
maxlen = ((*res)->res->fields[i].length < sql->fldsz ?
(*res)->res->fields[i].length : sql->fldsz) + 1;
if ((*res)->res->fields[i].type == MYSQL_TYPE_BLOB) {
(*res)->bind[i].buffer_type = MYSQL_TYPE_LONG_BLOB;
}
else {
(*res)->bind[i].buffer_type = MYSQL_TYPE_VAR_STRING;
}
(*res)->bind[i].buffer_length = maxlen;
(*res)->bind[i].length = &length[i];
(*res)->bind[i].buffer = apr_palloc(pool, maxlen);
(*res)->bind[i].is_null = is_nullr+i;
#if MYSQL_VERSION_ID >= 50000
(*res)->bind[i].error = error+i;
#endif
}
}
ret = mysql_stmt_bind_result(statement->stmt, (*res)->bind);
if (!ret) {
ret = mysql_stmt_store_result(statement->stmt);
}
}
}
if (ret != 0) {
ret = mysql_stmt_errno(statement->stmt);
}
return ret;
}
static int dbd_mysql_pselect(apr_pool_t *pool, apr_dbd_t *sql,
apr_dbd_results_t **res,
apr_dbd_prepared_t *statement, int random,
const char **args)
{
int ret;
MYSQL_BIND *bind;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
bind = apr_palloc(pool, statement->nargs * sizeof(MYSQL_BIND));
dbd_mysql_bind(statement, args, bind);
ret = dbd_mysql_pselect_internal(pool, sql, res, statement, random, bind);
if (TXN_NOTICE_ERRORS(sql->trans)) {
sql->trans->errnum = ret;
}
return ret;
}
static int dbd_mysql_pvselect(apr_pool_t *pool, apr_dbd_t *sql,
apr_dbd_results_t **res,
apr_dbd_prepared_t *statement, int random,
va_list args)
{
const char **values;
int i;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
values = apr_palloc(pool, sizeof(*values) * statement->nvals);
for (i = 0; i < statement->nvals; i++) {
values[i] = va_arg(args, const char*);
}
return dbd_mysql_pselect(pool, sql, res, statement, random, values);
}
static void dbd_mysql_bbind(apr_pool_t *pool, apr_dbd_prepared_t *statement,
const void **values, MYSQL_BIND *bind)
{
void *arg;
int i, j;
apr_dbd_type_e type;
for (i = 0, j = 0; i < statement->nargs; i++, j++) {
arg = (void *)values[j];
bind[i].length = &bind[i].buffer_length;
bind[i].is_null = NULL;
type = (arg == NULL ? APR_DBD_TYPE_NULL : statement->types[i]);
switch (type) {
case APR_DBD_TYPE_TINY:
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_TINY;
bind[i].is_unsigned = 0;
break;
case APR_DBD_TYPE_UTINY:
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_TINY;
bind[i].is_unsigned = 1;
break;
case APR_DBD_TYPE_SHORT:
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_SHORT;
bind[i].is_unsigned = 0;
break;
case APR_DBD_TYPE_USHORT:
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_SHORT;
bind[i].is_unsigned = 1;
break;
case APR_DBD_TYPE_INT:
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_LONG;
bind[i].is_unsigned = 0;
break;
case APR_DBD_TYPE_UINT:
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_LONG;
bind[i].is_unsigned = 1;
break;
case APR_DBD_TYPE_LONG:
if (sizeof(int) == sizeof(long)) {
bind[i].buffer = arg;
}
else {
bind[i].buffer = apr_palloc(pool, sizeof(int));
*(int*)bind[i].buffer = *(long*)arg;
}
bind[i].buffer_type = MYSQL_TYPE_LONG;
bind[i].is_unsigned = 0;
break;
case APR_DBD_TYPE_ULONG:
if (sizeof(unsigned int) == sizeof(unsigned long)) {
bind[i].buffer = arg;
}
else {
bind[i].buffer = apr_palloc(pool, sizeof(unsigned int));
*(unsigned int*)bind[i].buffer = *(unsigned long*)arg;
}
bind[i].buffer_type = MYSQL_TYPE_LONG;
bind[i].is_unsigned = 1;
break;
case APR_DBD_TYPE_LONGLONG:
if (sizeof(my_ulonglong) == sizeof(apr_int64_t)) {
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_LONGLONG;
}
else { /* have to downsize, long long is not portable */
bind[i].buffer = apr_palloc(pool, sizeof(long));
*(long*)bind[i].buffer = (long) *(apr_int64_t*)arg;
bind[i].buffer_type = MYSQL_TYPE_LONG;
}
bind[i].is_unsigned = 0;
break;
case APR_DBD_TYPE_ULONGLONG:
if (sizeof(my_ulonglong) == sizeof(apr_uint64_t)) {
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_LONGLONG;
}
else { /* have to downsize, long long is not portable */
bind[i].buffer = apr_palloc(pool, sizeof(long));
*(unsigned long*)bind[i].buffer =
(unsigned long) *(apr_uint64_t*)arg;
bind[i].buffer_type = MYSQL_TYPE_LONG;
}
bind[i].is_unsigned = 1;
break;
case APR_DBD_TYPE_FLOAT:
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_FLOAT;
bind[i].is_unsigned = 0;
break;
case APR_DBD_TYPE_DOUBLE:
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_DOUBLE;
bind[i].is_unsigned = 0;
break;
case APR_DBD_TYPE_STRING:
case APR_DBD_TYPE_TEXT:
case APR_DBD_TYPE_TIME:
case APR_DBD_TYPE_DATE:
case APR_DBD_TYPE_DATETIME:
case APR_DBD_TYPE_TIMESTAMP:
case APR_DBD_TYPE_ZTIMESTAMP:
bind[i].buffer = arg;
bind[i].buffer_type = MYSQL_TYPE_VAR_STRING;
bind[i].is_unsigned = 0;
bind[i].buffer_length = strlen((const char *)arg);
break;
case APR_DBD_TYPE_BLOB:
case APR_DBD_TYPE_CLOB:
bind[i].buffer = (void *)arg;
bind[i].buffer_type = MYSQL_TYPE_LONG_BLOB;
bind[i].is_unsigned = 0;
bind[i].buffer_length = *(apr_size_t*)values[++j];
/* skip table and column */
j += 2;
break;
case APR_DBD_TYPE_NULL:
default:
bind[i].buffer_type = MYSQL_TYPE_NULL;
break;
}
}
return;
}
static int dbd_mysql_pbquery(apr_pool_t *pool, apr_dbd_t *sql,
int *nrows, apr_dbd_prepared_t *statement,
const void **values)
{
MYSQL_BIND *bind;
int ret;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
bind = apr_palloc(pool, statement->nargs * sizeof(MYSQL_BIND));
dbd_mysql_bbind(pool, statement, values, bind);
ret = dbd_mysql_pquery_internal(pool, sql, nrows, statement, bind);
if (TXN_NOTICE_ERRORS(sql->trans)) {
sql->trans->errnum = ret;
}
return ret;
}
static int dbd_mysql_pvbquery(apr_pool_t *pool, apr_dbd_t *sql, int *nrows,
apr_dbd_prepared_t *statement, va_list args)
{
const void **values;
int i;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
values = apr_palloc(pool, sizeof(*values) * statement->nvals);
for (i = 0; i < statement->nvals; i++) {
values[i] = va_arg(args, const void*);
}
return dbd_mysql_pbquery(pool, sql, nrows, statement, values);
}
static int dbd_mysql_pbselect(apr_pool_t *pool, apr_dbd_t *sql,
apr_dbd_results_t **res,
apr_dbd_prepared_t *statement, int random,
const void **args)
{
int ret;
MYSQL_BIND *bind;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
bind = apr_palloc(pool, statement->nargs * sizeof(MYSQL_BIND));
dbd_mysql_bbind(pool, statement, args, bind);
ret = dbd_mysql_pselect_internal(pool, sql, res, statement, random, bind);
if (TXN_NOTICE_ERRORS(sql->trans)) {
sql->trans->errnum = ret;
}
return ret;
}
static int dbd_mysql_pvbselect(apr_pool_t *pool, apr_dbd_t *sql,
apr_dbd_results_t **res,
apr_dbd_prepared_t *statement, int random,
va_list args)
{
const void **values;
int i;
if (sql->trans && sql->trans->errnum) {
return sql->trans->errnum;
}
values = apr_palloc(pool, sizeof(*values) * statement->nvals);
for (i = 0; i < statement->nvals; i++) {
values[i] = va_arg(args, const void*);
}
return dbd_mysql_pbselect(pool, sql, res, statement, random, values);
}
static int dbd_mysql_end_transaction(apr_dbd_transaction_t *trans)
{
int ret = -1;
if (trans) {
/* rollback on error or explicit rollback request */
if (trans->errnum || TXN_DO_ROLLBACK(trans)) {
trans->errnum = 0;
ret = mysql_rollback(trans->handle->conn);
}
else {
ret = mysql_commit(trans->handle->conn);
}
}
ret |= mysql_autocommit(trans->handle->conn, 1);
trans->handle->trans = NULL;
return ret;
}
/* Whether or not transactions work depends on whether the
* underlying DB supports them within MySQL. Unfortunately
* it fails silently with the default InnoDB.
*/
static int dbd_mysql_transaction(apr_pool_t *pool, apr_dbd_t *handle,
apr_dbd_transaction_t **trans)
{
/* Don't try recursive transactions here */
if (handle->trans) {
dbd_mysql_end_transaction(handle->trans) ;
}
if (!*trans) {
*trans = apr_pcalloc(pool, sizeof(apr_dbd_transaction_t));
}
(*trans)->errnum = mysql_autocommit(handle->conn, 0);
(*trans)->handle = handle;
handle->trans = *trans;
return (*trans)->errnum;
}
static int dbd_mysql_transaction_mode_get(apr_dbd_transaction_t *trans)
{
if (!trans)
return APR_DBD_TRANSACTION_COMMIT;
return trans->mode;
}
static int dbd_mysql_transaction_mode_set(apr_dbd_transaction_t *trans,
int mode)
{
if (!trans)
return APR_DBD_TRANSACTION_COMMIT;
return trans->mode = (mode & TXN_MODE_BITS);
}
static apr_dbd_t *dbd_mysql_open(apr_pool_t *pool, const char *params,
const char **error)
{
static const char *const delims = " \r\n\t;|,";
const char *ptr;
int i;
const char *key;
size_t klen;
const char *value;
size_t vlen;
#if MYSQL_VERSION_ID >= 50013
my_bool do_reconnect = 1;
#endif
MYSQL *real_conn;
unsigned long flags = 0;
struct {
const char *field;
const char *value;
} fields[] = {
{"host", NULL},
{"user", NULL},
{"pass", NULL},
{"dbname", NULL},
{"port", NULL},
{"sock", NULL},
{"flags", NULL},
{"fldsz", NULL},
{"group", NULL},
{"reconnect", NULL},
{NULL, NULL}
};
unsigned int port = 0;
apr_dbd_t *sql = apr_pcalloc(pool, sizeof(apr_dbd_t));
sql->fldsz = FIELDSIZE;
sql->conn = mysql_init(sql->conn);
if ( sql->conn == NULL ) {
return NULL;
}
for (ptr = strchr(params, '='); ptr; ptr = strchr(ptr, '=')) {
/* don't dereference memory that may not belong to us */
if (ptr == params) {
++ptr;
continue;
}
for (key = ptr-1; apr_isspace(*key); --key);
klen = 0;
while (apr_isalpha(*key)) {
/* don't parse backwards off the start of the string */
if (key == params) {
--key;
++klen;
break;
}
--key;
++klen;
}
++key;
for (value = ptr+1; apr_isspace(*value); ++value);
vlen = strcspn(value, delims);
for (i = 0; fields[i].field != NULL; i++) {
if (!strncasecmp(fields[i].field, key, klen)) {
fields[i].value = apr_pstrndup(pool, value, vlen);
break;
}
}
ptr = value+vlen;
}
if (fields[4].value != NULL) {
port = atoi(fields[4].value);
}
if (fields[6].value != NULL &&
!strcmp(fields[6].value, "CLIENT_FOUND_ROWS")) {
flags |= CLIENT_FOUND_ROWS; /* only option we know */
}
if (fields[7].value != NULL) {
sql->fldsz = atol(fields[7].value);
}
if (fields[8].value != NULL) {
mysql_options(sql->conn, MYSQL_READ_DEFAULT_GROUP, fields[8].value);
}
#if MYSQL_VERSION_ID >= 50013
if (fields[9].value != NULL) {
do_reconnect = atoi(fields[9].value) ? 1 : 0;
}
#endif
#if MYSQL_VERSION_ID >= 50013
/* the MySQL manual says this should be BEFORE mysql_real_connect */
mysql_options(sql->conn, MYSQL_OPT_RECONNECT, &do_reconnect);
#endif
real_conn = mysql_real_connect(sql->conn, fields[0].value,
fields[1].value, fields[2].value,
fields[3].value, port,
fields[5].value, flags);
if(real_conn == NULL) {
if (error) {
*error = apr_pstrdup(pool, mysql_error(sql->conn));
}
mysql_close(sql->conn);
return NULL;
}
#if MYSQL_VERSION_ID >= 50013
/* Some say this should be AFTER mysql_real_connect */
mysql_options(sql->conn, MYSQL_OPT_RECONNECT, &do_reconnect);
#endif
return sql;
}
static apr_status_t dbd_mysql_close(apr_dbd_t *handle)
{
mysql_close(handle->conn);
return APR_SUCCESS;
}
static apr_status_t dbd_mysql_check_conn(apr_pool_t *pool,
apr_dbd_t *handle)
{
return mysql_ping(handle->conn) ? APR_EGENERAL : APR_SUCCESS;
}
static int dbd_mysql_select_db(apr_pool_t *pool, apr_dbd_t* handle,
const char* name)
{
return mysql_select_db(handle->conn, name);
}
static void *dbd_mysql_native(apr_dbd_t *handle)
{
return handle->conn;
}
static int dbd_mysql_num_cols(apr_dbd_results_t *res)
{
if (res->statement) {
return mysql_stmt_field_count(res->statement);
}
else {
return mysql_num_fields(res->res);
}
}
static int dbd_mysql_num_tuples(apr_dbd_results_t *res)
{
if (res->random) {
if (res->statement) {
return (int) mysql_stmt_num_rows(res->statement);
}
else {
return (int) mysql_num_rows(res->res);
}
}
else {
return -1;
}
}
static apr_status_t thread_end(void *data)
{
mysql_thread_end();
return APR_SUCCESS;
}
static void dbd_mysql_init(apr_pool_t *pool)
{
my_init();
mysql_thread_init();
/* FIXME: this is a guess; find out what it really does */
apr_pool_cleanup_register(pool, NULL, thread_end, apr_pool_cleanup_null);
}
APU_MODULE_DECLARE_DATA const apr_dbd_driver_t apr_dbd_mysql_driver = {
"mysql",
dbd_mysql_init,
dbd_mysql_native,
dbd_mysql_open,
dbd_mysql_check_conn,
dbd_mysql_close,
dbd_mysql_select_db,
dbd_mysql_transaction,
dbd_mysql_end_transaction,
dbd_mysql_query,
dbd_mysql_select,
dbd_mysql_num_cols,
dbd_mysql_num_tuples,
dbd_mysql_get_row,
dbd_mysql_get_entry,
dbd_mysql_error,
dbd_mysql_escape,
dbd_mysql_prepare,
dbd_mysql_pvquery,
dbd_mysql_pvselect,
dbd_mysql_pquery,
dbd_mysql_pselect,
dbd_mysql_get_name,
dbd_mysql_transaction_mode_get,
dbd_mysql_transaction_mode_set,
"?",
dbd_mysql_pvbquery,
dbd_mysql_pvbselect,
dbd_mysql_pbquery,
dbd_mysql_pbselect,
dbd_mysql_datum_get
};
#endif
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