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connection.c
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/*------
* Module: connection.c
*
* Description: This module contains routines related to
* connecting to and disconnecting from the Postgres DBMS.
*
* Classes: ConnectionClass (Functions prefix: "CC_")
*
* API functions: SQLAllocConnect, SQLConnect, SQLDisconnect, SQLFreeConnect,
* SQLBrowseConnect(NI)
*
* Comments: See "readme.txt" for copyright and license information.
*-------
*/
/* Multibyte support Eiji Tokuya 2001-03-15 */
/* TryEnterCritiaclSection needs the following #define */
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0400
#endif /* _WIN32_WINNT */
#include "connection.h"
#ifdef USE_LIBPQ
#include <libpq-fe.h>
#endif /* USE_LIBPQ */
#include "misc.h"
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#ifdef WIN32
#ifdef USE_SSPI
#include "sspisvcs.h"
#endif /* USE_SSPI */
#else
#include <errno.h>
#endif /* WIN32 */
#ifdef USE_KRB5
#include "krb5svcs.h"
#endif /* USE_KRB5 */
#ifdef USE_GSS
#include "gsssvcs.h"
#endif /* USE_GSS */
#include "environ.h"
#include "socket.h"
#include "statement.h"
#include "qresult.h"
#include "lobj.h"
#include "dlg_specific.h"
#include "loadlib.h"
#include "multibyte.h"
#include "pgapifunc.h"
#include "md5.h"
#define STMT_INCREMENT 16 /* how many statement holders to allocate
* at a time */
#define PRN_NULLCHECK
static void CC_lookup_pg_version(ConnectionClass *self);
static void CC_lookup_lo(ConnectionClass *self);
static char *CC_create_errormsg(ConnectionClass *self);
static int CC_close_eof_cursors(ConnectionClass *self);
extern GLOBAL_VALUES globals;
RETCODE SQL_API
PGAPI_AllocConnect(HENV henv,
HDBC FAR * phdbc)
{
EnvironmentClass *env = (EnvironmentClass *) henv;
ConnectionClass *conn;
CSTR func = "PGAPI_AllocConnect";
mylog("%s: entering...\n", func);
conn = CC_Constructor();
mylog("**** %s: henv = %p, conn = %p\n", func, henv, conn);
if (!conn)
{
env->errormsg = "Couldn't allocate memory for Connection object.";
env->errornumber = ENV_ALLOC_ERROR;
*phdbc = SQL_NULL_HDBC;
EN_log_error(func, "", env);
return SQL_ERROR;
}
if (!EN_add_connection(env, conn))
{
env->errormsg = "Maximum number of connections exceeded.";
env->errornumber = ENV_ALLOC_ERROR;
CC_Destructor(conn);
*phdbc = SQL_NULL_HDBC;
EN_log_error(func, "", env);
return SQL_ERROR;
}
if (phdbc)
*phdbc = (HDBC) conn;
return SQL_SUCCESS;
}
RETCODE SQL_API
PGAPI_Connect(HDBC hdbc,
const SQLCHAR FAR * szDSN,
SQLSMALLINT cbDSN,
const SQLCHAR FAR * szUID,
SQLSMALLINT cbUID,
const SQLCHAR FAR * szAuthStr,
SQLSMALLINT cbAuthStr)
{
ConnectionClass *conn = (ConnectionClass *) hdbc;
ConnInfo *ci;
CSTR func = "PGAPI_Connect";
RETCODE ret = SQL_SUCCESS;
char fchar, *tmpstr;
mylog("%s: entering..cbDSN=%hi.\n", func, cbDSN);
if (!conn)
{
CC_log_error(func, "", NULL);
return SQL_INVALID_HANDLE;
}
ci = &conn->connInfo;
CC_conninfo_init(ci, COPY_GLOBALS);
make_string(szDSN, cbDSN, ci->dsn, sizeof(ci->dsn));
/* get the values for the DSN from the registry */
getDSNinfo(ci, CONN_OVERWRITE);
logs_on_off(1, ci->drivers.debug, ci->drivers.commlog);
/* initialize pg_version from connInfo.protocol */
CC_initialize_pg_version(conn);
/*
* override values from DSN info with UID and authStr(pwd) This only
* occurs if the values are actually there.
*/
fchar = ci->username[0]; /* save the first byte */
make_string(szUID, cbUID, ci->username, sizeof(ci->username));
if ('\0' == ci->username[0]) /* an empty string is specified */
ci->username[0] = fchar; /* restore the original username */
tmpstr = make_string(szAuthStr, cbAuthStr, NULL, 0);
if (tmpstr)
{
if (tmpstr[0]) /* non-empty string is specified */
STR_TO_NAME(ci->password, tmpstr);
free(tmpstr);
}
/* fill in any defaults */
getDSNdefaults(ci);
qlog("conn = %p, %s(DSN='%s', UID='%s', PWD='%s')\n", conn, func, ci->dsn, ci->username, NAME_IS_VALID(ci->password) ? "xxxxx" : "");
if ((fchar = CC_connect(conn, AUTH_REQ_OK, NULL)) <= 0)
{
/* Error messages are filled in */
CC_log_error(func, "Error on CC_connect", conn);
ret = SQL_ERROR;
}
if (SQL_SUCCESS == ret && 2 == fchar)
ret = SQL_SUCCESS_WITH_INFO;
mylog("%s: returning..%d.\n", func, ret);
return ret;
}
RETCODE SQL_API
PGAPI_BrowseConnect(HDBC hdbc,
const SQLCHAR FAR * szConnStrIn,
SQLSMALLINT cbConnStrIn,
SQLCHAR FAR * szConnStrOut,
SQLSMALLINT cbConnStrOutMax,
SQLSMALLINT FAR * pcbConnStrOut)
{
CSTR func = "PGAPI_BrowseConnect";
ConnectionClass *conn = (ConnectionClass *) hdbc;
mylog("%s: entering...\n", func);
CC_set_error(conn, CONN_NOT_IMPLEMENTED_ERROR, "Function not implemented", func);
return SQL_ERROR;
}
/* Drop any hstmts open on hdbc and disconnect from database */
RETCODE SQL_API
PGAPI_Disconnect(HDBC hdbc)
{
ConnectionClass *conn = (ConnectionClass *) hdbc;
CSTR func = "PGAPI_Disconnect";
mylog("%s: entering...\n", func);
if (!conn)
{
CC_log_error(func, "", NULL);
return SQL_INVALID_HANDLE;
}
qlog("conn=%p, %s\n", conn, func);
if (conn->status == CONN_EXECUTING)
{
CC_set_error(conn, CONN_IN_USE, "A transaction is currently being executed", func);
return SQL_ERROR;
}
logs_on_off(-1, conn->connInfo.drivers.debug, conn->connInfo.drivers.commlog);
mylog("%s: about to CC_cleanup\n", func);
/* Close the connection and free statements */
CC_cleanup(conn, FALSE);
mylog("%s: done CC_cleanup\n", func);
mylog("%s: returning...\n", func);
return SQL_SUCCESS;
}
RETCODE SQL_API
PGAPI_FreeConnect(HDBC hdbc)
{
ConnectionClass *conn = (ConnectionClass *) hdbc;
CSTR func = "PGAPI_FreeConnect";
EnvironmentClass *env;
mylog("%s: entering...\n", func);
mylog("**** in %s: hdbc=%p\n", func, hdbc);
if (!conn)
{
CC_log_error(func, "", NULL);
return SQL_INVALID_HANDLE;
}
/* Remove the connection from the environment */
if (NULL != (env = CC_get_env(conn)) &&
!EN_remove_connection(env, conn))
{
CC_set_error(conn, CONN_IN_USE, "A transaction is currently being executed", func);
return SQL_ERROR;
}
CC_Destructor(conn);
mylog("%s: returning...\n", func);
return SQL_SUCCESS;
}
static void
CC_conninfo_release(ConnInfo *conninfo)
{
NULL_THE_NAME(conninfo->password);
NULL_THE_NAME(conninfo->conn_settings);
finalize_globals(&conninfo->drivers);
}
void
CC_conninfo_init(ConnInfo *conninfo, UInt4 option)
{
CSTR func = "CC_conninfo_init";
mylog("%s opt=%d\n", func, option);
if (0 != (CLEANUP_FOR_REUSE & option))
CC_conninfo_release(conninfo);
memset(conninfo, 0, sizeof(ConnInfo));
conninfo->disallow_premature = -1;
conninfo->allow_keyset = -1;
conninfo->lf_conversion = -1;
conninfo->true_is_minus1 = -1;
conninfo->int8_as = -101;
conninfo->bytea_as_longvarbinary = -1;
conninfo->use_server_side_prepare = -1;
conninfo->lower_case_identifier = -1;
conninfo->rollback_on_error = -1;
conninfo->force_abbrev_connstr = -1;
conninfo->bde_environment = -1;
conninfo->fake_mss = -1;
conninfo->cvt_null_date_string = -1;
conninfo->autocommit_public = SQL_AUTOCOMMIT_ON;
conninfo->accessible_only = -1;
conninfo->ignore_round_trip_time = -1;
conninfo->disable_keepalive = -1;
conninfo->gssauth_use_gssapi = -1;
#ifdef _HANDLE_ENLIST_IN_DTC_
conninfo->xa_opt = -1;
#endif /* _HANDLE_ENLIST_IN_DTC_ */
if (0 != (COPY_GLOBALS & option))
copy_globals(&(conninfo->drivers), &globals);
}
#define CORR_STRCPY(item) strncpy_null(ci->item, sci->item, sizeof(ci->item))
#define CORR_VALCPY(item) (ci->item = sci->item)
void
CC_copy_conninfo(ConnInfo *ci, const ConnInfo *sci)
{
memset(ci, 0,sizeof(ConnInfo));
CORR_STRCPY(dsn);
CORR_STRCPY(desc);
CORR_STRCPY(drivername);
CORR_STRCPY(server);
CORR_STRCPY(database);
CORR_STRCPY(username);
NAME_TO_NAME(ci->password, sci->password);
CORR_STRCPY(protocol);
CORR_STRCPY(port);
CORR_STRCPY(sslmode);
CORR_STRCPY(onlyread);
CORR_STRCPY(fake_oid_index);
CORR_STRCPY(show_oid_column);
CORR_STRCPY(row_versioning);
CORR_STRCPY(show_system_tables);
CORR_STRCPY(translation_dll);
CORR_STRCPY(translation_option);
CORR_VALCPY(focus_password);
NAME_TO_NAME(ci->conn_settings, sci->conn_settings);
CORR_VALCPY(disallow_premature);
CORR_VALCPY(allow_keyset);
CORR_VALCPY(updatable_cursors);
CORR_VALCPY(lf_conversion);
CORR_VALCPY(true_is_minus1);
CORR_VALCPY(int8_as);
CORR_VALCPY(bytea_as_longvarbinary);
CORR_VALCPY(use_server_side_prepare);
CORR_VALCPY(lower_case_identifier);
CORR_VALCPY(rollback_on_error);
CORR_VALCPY(force_abbrev_connstr);
CORR_VALCPY(bde_environment);
CORR_VALCPY(fake_mss);
CORR_VALCPY(cvt_null_date_string);
CORR_VALCPY(autocommit_public);
CORR_VALCPY(accessible_only);
CORR_VALCPY(ignore_round_trip_time);
CORR_VALCPY(disable_keepalive);
CORR_VALCPY(gssauth_use_gssapi);
CORR_VALCPY(extra_opts);
#ifdef _HANDLE_ENLIST_IN_DTC_
CORR_VALCPY(xa_opt);
#endif
copy_globals(&(ci->drivers), &(sci->drivers)); /* moved from driver's option */
}
#undef CORR_STRCPY
#undef CORR_VALCPY
#ifdef WIN32
extern int platformId;
#endif /* WIN32 */
/*
* IMPLEMENTATION CONNECTION CLASS
*/
static void
reset_current_schema(ConnectionClass *self)
{
if (self->current_schema)
{
free(self->current_schema);
self->current_schema = NULL;
}
}
static ConnectionClass *
CC_alloc(void)
{
return (ConnectionClass *) calloc(sizeof(ConnectionClass), 1);
}
static void
CC_lockinit(ConnectionClass *self)
{
INIT_CONNLOCK(self);
INIT_CONN_CS(self);
}
static ConnectionClass *
CC_initialize(ConnectionClass *rv, BOOL lockinit)
{
ConnectionClass *retrv = NULL;
size_t clear_size;
#if defined(WIN_MULTITHREAD_SUPPORT) || defined(POSIX_THREADMUTEX_SUPPORT)
clear_size = (char *)&(rv->cs) - (char *)rv;
#else
clear_size = sizeof(ConnectionClass);
#endif /* WIN_MULTITHREAD_SUPPORT */
memset(rv, 0, clear_size);
rv->status = CONN_NOT_CONNECTED;
rv->transact_status = CONN_IN_AUTOCOMMIT; /* autocommit by default */
rv->stmt_in_extquery = NULL;
rv->stmts = (StatementClass **) malloc(sizeof(StatementClass *) * STMT_INCREMENT);
if (!rv->stmts)
goto cleanup;
memset(rv->stmts, 0, sizeof(StatementClass *) * STMT_INCREMENT);
rv->num_stmts = STMT_INCREMENT;
#if (ODBCVER >= 0x0300)
rv->descs = (DescriptorClass **) malloc(sizeof(DescriptorClass *) * STMT_INCREMENT);
if (!rv->descs)
goto cleanup;
memset(rv->descs, 0, sizeof(DescriptorClass *) * STMT_INCREMENT);
rv->num_descs = STMT_INCREMENT;
#endif /* ODBCVER */
rv->lobj_type = PG_TYPE_LO_UNDEFINED;
rv->driver_version = ODBCVER;
#ifdef WIN32
if (VER_PLATFORM_WIN32_WINDOWS == platformId && rv->driver_version > 0x0300)
rv->driver_version = 0x0300;
#endif /* WIN32 */
if (isMsAccess())
rv->ms_jet = 1;
rv->isolation = SQL_TXN_READ_COMMITTED;
rv->mb_maxbyte_per_char = 1;
rv->max_identifier_length = -1;
rv->escape_in_literal = ESCAPE_IN_LITERAL;
/* Initialize statement options to defaults */
/* Statements under this conn will inherit these options */
InitializeStatementOptions(&rv->stmtOptions);
InitializeARDFields(&rv->ardOptions);
InitializeAPDFields(&rv->apdOptions);
#ifdef _HANDLE_ENLIST_IN_DTC_
rv->asdum = NULL;
rv->gTranInfo = 0;
#endif /* _HANDLE_ENLIST_IN_DTC_ */
if (lockinit)
CC_lockinit(rv);
retrv = rv;
cleanup:
if (rv && !retrv)
CC_Destructor(rv);
return retrv;
}
ConnectionClass *
CC_Constructor()
{
ConnectionClass *rv, *retrv = NULL;
if (rv = CC_alloc(), NULL != rv)
retrv = CC_initialize(rv, TRUE);
return retrv;
}
char
CC_Destructor(ConnectionClass *self)
{
mylog("enter CC_Destructor, self=%p\n", self);
if (self->status == CONN_EXECUTING)
return 0;
CC_cleanup(self, FALSE); /* cleanup socket and statements */
mylog("after CC_Cleanup\n");
/* Free up statement holders */
if (self->stmts)
{
free(self->stmts);
self->stmts = NULL;
}
#if (ODBCVER >= 0x0300)
if (self->descs)
{
free(self->descs);
self->descs = NULL;
}
#endif /* ODBCVER */
mylog("after free statement holders\n");
NULL_THE_NAME(self->schemaIns);
NULL_THE_NAME(self->tableIns);
CC_conninfo_release(&self->connInfo);
if (self->__error_message)
free(self->__error_message);
DELETE_CONN_CS(self);
DELETE_CONNLOCK(self);
free(self);
mylog("exit CC_Destructor\n");
return 1;
}
/* Return how many cursors are opened on this connection */
int
CC_cursor_count(ConnectionClass *self)
{
StatementClass *stmt;
int i,
count = 0;
QResultClass *res;
mylog("CC_cursor_count: self=%p, num_stmts=%d\n", self, self->num_stmts);
CONNLOCK_ACQUIRE(self);
for (i = 0; i < self->num_stmts; i++)
{
stmt = self->stmts[i];
if (stmt && (res = SC_get_Result(stmt)) && QR_get_cursor(res))
count++;
}
CONNLOCK_RELEASE(self);
mylog("CC_cursor_count: returning %d\n", count);
return count;
}
void
CC_clear_error(ConnectionClass *self)
{
if (!self) return;
CONNLOCK_ACQUIRE(self);
self->__error_number = 0;
if (self->__error_message)
{
free(self->__error_message);
self->__error_message = NULL;
}
self->sqlstate[0] = '\0';
self->errormsg_created = FALSE;
CONNLOCK_RELEASE(self);
}
void
CC_examine_global_transaction(ConnectionClass *self)
{
if (!self) return;
#ifdef _HANDLE_ENLIST_IN_DTC_
if (CC_is_in_global_trans(self))
CALL_IsolateDtcConn(self, TRUE);
#endif /* _HANDLE_ENLIST_IN_DTC_ */
}
static void
CC_endup_authentication(ConnectionClass *self)
{
SocketClass *sock = CC_get_socket(self);
if (!sock)
return;
#ifdef USE_SSPI
if (0 != self->auth_svcs)
{
ReleaseSvcSpecData(sock, self->auth_svcs);
self->auth_svcs = 0;
}
#endif /* USE_SSPI */
#ifdef USE_GSS
pg_GSS_cleanup(sock);
#endif /* USE_GSS */
}
CSTR bgncmd = "BEGIN";
CSTR cmtcmd = "COMMIT";
CSTR rbkcmd = "ROLLBACK";
CSTR semi_colon = ";";
/*
* Used to begin a transaction.
*/
char
CC_begin(ConnectionClass *self)
{
char ret = TRUE;
if (!CC_is_in_trans(self))
{
QResultClass *res = CC_send_query(self, bgncmd, NULL, 0, NULL);
mylog("CC_begin: sending BEGIN!\n");
ret = QR_command_maybe_successful(res);
QR_Destructor(res);
}
return ret;
}
/*
* Used to commit a transaction.
* We are almost always in the middle of a transaction.
*/
char
CC_commit(ConnectionClass *self)
{
char ret = TRUE;
if (CC_is_in_trans(self))
{
if (!CC_is_in_error_trans(self))
CC_close_eof_cursors(self);
if (CC_is_in_trans(self))
{
QResultClass *res = CC_send_query(self, cmtcmd, NULL, 0, NULL);
mylog("CC_commit: sending COMMIT!\n");
ret = QR_command_maybe_successful(res);
QR_Destructor(res);
}
}
return ret;
}
/*
* Used to cancel a transaction.
* We are almost always in the middle of a transaction.
*/
char
CC_abort(ConnectionClass *self)
{
char ret = TRUE;
if (CC_is_in_trans(self))
{
QResultClass *res = CC_send_query(self, rbkcmd, NULL, 0, NULL);
mylog("CC_abort: sending ABORT!\n");
ret = QR_command_maybe_successful(res);
QR_Destructor(res);
}
return ret;
}
/* This is called by SQLSetConnectOption etc also */
char
CC_set_autocommit(ConnectionClass *self, BOOL on)
{
CSTR func = "CC_set_autocommit";
BOOL currsts = CC_is_in_autocommit(self);
if ((on && currsts) ||
(!on && !currsts))
return on;
mylog("%s: %d->%d\n", func, currsts, on);
if (CC_is_in_trans(self))
CC_commit(self);
if (on)
self->transact_status |= CONN_IN_AUTOCOMMIT;
else
self->transact_status &= ~CONN_IN_AUTOCOMMIT;
return on;
}
/* Clear cached table info */
static void
CC_clear_col_info(ConnectionClass *self, BOOL destroy)
{
if (self->col_info)
{
int i;
COL_INFO *coli;
for (i = 0; i < self->ntables; i++)
{
if (coli = self->col_info[i], NULL != coli)
{
if (destroy || coli->refcnt == 0)
{
free_col_info_contents(coli);
free(coli);
self->col_info[i] = NULL;
}
else
coli->acc_time = 0;
}
}
self->ntables = 0;
if (destroy)
{
free(self->col_info);
self->col_info = NULL;
self->coli_allocated = 0;
}
}
}
/* This is called by SQLDisconnect also */
char
CC_cleanup(ConnectionClass *self, BOOL keepCommunication)
{
int i;
StatementClass *stmt;
DescriptorClass *desc;
if (self->status == CONN_EXECUTING)
return FALSE;
mylog("in CC_Cleanup, self=%p\n", self);
ENTER_CONN_CS(self);
/* Cancel an ongoing transaction */
/* We are always in the middle of a transaction, */
/* even if we are in auto commit. */
if (self->sock)
{
if (!keepCommunication)
{
CC_abort(self);
mylog("after CC_abort\n");
/* This actually closes the connection to the dbase */
SOCK_Destructor(self->sock);
self->sock = NULL;
}
}
mylog("after SOCK destructor\n");
/* Free all the stmts on this connection */
for (i = 0; i < self->num_stmts; i++)
{
stmt = self->stmts[i];
if (stmt)
{
stmt->hdbc = NULL; /* prevent any more dbase interactions */
SC_Destructor(stmt);
self->stmts[i] = NULL;
}
}
#if (ODBCVER >= 0x0300)
/* Free all the descs on this connection */
for (i = 0; i < self->num_descs; i++)
{
desc = self->descs[i];
if (desc)
{
DC_get_conn(desc) = NULL; /* prevent any more dbase interactions */
DC_Destructor(desc);
free(desc);
self->descs[i] = NULL;
}
}
#endif /* ODBCVER */
/* Check for translation dll */
#ifdef WIN32
if (!keepCommunication && self->translation_handle)
{
FreeLibrary(self->translation_handle);
self->translation_handle = NULL;
}
#endif
if (!keepCommunication)
{
self->status = CONN_NOT_CONNECTED;
self->transact_status = CONN_IN_AUTOCOMMIT;
}
self->stmt_in_extquery = NULL;
if (!keepCommunication)
{
CC_conninfo_init(&(self->connInfo), CLEANUP_FOR_REUSE);
if (self->original_client_encoding)
{
free(self->original_client_encoding);
self->original_client_encoding = NULL;
}
if (self->current_client_encoding)
{
free(self->current_client_encoding);
self->current_client_encoding = NULL;
}
if (self->server_encoding)
{
free(self->server_encoding);
self->server_encoding = NULL;
}
reset_current_schema(self);
}
/* Free cached table info */
CC_clear_col_info(self, TRUE);
if (self->num_discardp > 0 && self->discardp)
{
for (i = 0; i < self->num_discardp; i++)
free(self->discardp[i]);
self->num_discardp = 0;
}
if (self->discardp)
{
free(self->discardp);
self->discardp = NULL;
}
LEAVE_CONN_CS(self);
mylog("exit CC_Cleanup\n");
return TRUE;
}
int
CC_set_translation(ConnectionClass *self)
{
#ifdef WIN32
CSTR func = "CC_set_translation";
if (self->translation_handle != NULL)
{
FreeLibrary(self->translation_handle);
self->translation_handle = NULL;
}
if (self->connInfo.translation_dll[0] == 0)
return TRUE;
self->translation_option = atoi(self->connInfo.translation_option);
self->translation_handle = LoadLibrary(self->connInfo.translation_dll);
if (self->translation_handle == NULL)
{
CC_set_error(self, CONN_UNABLE_TO_LOAD_DLL, "Could not load the translation DLL.", func);
return FALSE;
}
self->DataSourceToDriver
= (DataSourceToDriverProc) GetProcAddress(self->translation_handle,
"SQLDataSourceToDriver");
self->DriverToDataSource
= (DriverToDataSourceProc) GetProcAddress(self->translation_handle,
"SQLDriverToDataSource");
if (self->DataSourceToDriver == NULL || self->DriverToDataSource == NULL)
{
CC_set_error(self, CONN_UNABLE_TO_LOAD_DLL, "Could not find translation DLL functions.", func);
return FALSE;
}
#endif
return TRUE;
}
static int
md5_auth_send(ConnectionClass *self, const char *salt)
{
char *pwd1 = NULL, *pwd2 = NULL;
ConnInfo *ci = &(self->connInfo);
SocketClass *sock = self->sock;
size_t md5len;
inolog("md5 pwd=%s user=%s salt=%02x%02x%02x%02x%02x\n", PRINT_NAME(ci->password), ci->username, (UCHAR)salt[0], (UCHAR)salt[1], (UCHAR)salt[2], (UCHAR)salt[3], (UCHAR)salt[4]);
if (!(pwd1 = malloc(MD5_PASSWD_LEN + 1)))
return 1;
if (!EncryptMD5(SAFE_NAME(ci->password), ci->username, strlen(ci->username), pwd1))
{
free(pwd1);
return 1;
}
if (!(pwd2 = malloc(MD5_PASSWD_LEN + 1)))
{
free(pwd1);
return 1;
}
if (!EncryptMD5(pwd1 + strlen("md5"), salt, 4, pwd2))
{
free(pwd2);
free(pwd1);
return 1;
}
free(pwd1);
if (PROTOCOL_74(&(self->connInfo)))
{
inolog("putting p and %s\n", pwd2);
SOCK_put_char(sock, 'p');
}
md5len = strlen(pwd2);
SOCK_put_int(sock, (Int4) (4 + md5len + 1), 4);
SOCK_put_n_char(sock, pwd2, (md5len + 1));
SOCK_flush_output(sock);
inolog("sockerr=%d\n", SOCK_get_errcode(sock));
free(pwd2);
return 0;
}
int
EatReadyForQuery(ConnectionClass *conn)
{
int id = 0;
if (PROTOCOL_74(&(conn->connInfo)))
{
BOOL is_in_error_trans = CC_is_in_error_trans(conn);
switch (id = SOCK_get_char(conn->sock))
{
case 'I':
if (CC_is_in_trans(conn))
{
if (is_in_error_trans)
CC_on_abort(conn, NO_TRANS);
else
CC_on_commit(conn);
}
break;
case 'T':
CC_set_in_trans(conn);
CC_set_no_error_trans(conn);
if (is_in_error_trans)
CC_on_abort_partial(conn);
break;
case 'E':
CC_set_in_error_trans(conn);
break;
}
conn->stmt_in_extquery = NULL;
}
return id;
}
int
handle_error_message(ConnectionClass *self, char *msgbuf, size_t buflen, char *sqlstate, const char *comment, QResultClass *res)
{
BOOL new_format = FALSE, msg_truncated = FALSE, truncated, hasmsg = FALSE;
SocketClass *sock = self->sock;
ConnInfo *ci = &(self->connInfo);
char msgbuffer[ERROR_MSG_LENGTH];
UDWORD abort_opt;
inolog("handle_error_message protocol=%s\n", ci->protocol);
if (PROTOCOL_74(ci))
new_format = TRUE;
else if (PROTOCOL_74REJECTED(ci))
{
if (!SOCK_get_next_byte(sock, TRUE)) /* peek the next byte */
{
uint32 leng;
mylog("peek the next byte = \\0\n");
new_format = TRUE;
strncpy_null(ci->protocol, PG74, sizeof(ci->protocol));
leng = SOCK_get_response_length(sock);
inolog("get the response length=%d\n", leng);
}
}
inolog("new_format=%d\n", new_format);
truncated = SOCK_get_string(sock,
new_format ? msgbuffer : msgbuf,
new_format ? sizeof(msgbuffer) : (Int4) buflen);
if (new_format)
{
msgbuf[0] = '\0';
for (;msgbuffer[0];)
{
mylog("%s: 'E' - %s\n", comment, msgbuffer);
qlog("ERROR from backend during %s: '%s'\n", comment, msgbuffer);
switch (msgbuffer[0])
{
case 'S':
strlcat(msgbuf, msgbuffer + 1, buflen);
strlcat(msgbuf, ": ", buflen);
break;
case 'M':
case 'D':
if (hasmsg)
strlcat(msgbuf, "\n", buflen);
strlcat(msgbuf, msgbuffer + 1, buflen);
if (truncated)
msg_truncated = truncated;
hasmsg = TRUE;
break;
case 'C':
if (sqlstate)
strncpy_null(sqlstate, msgbuffer + 1, 8);
break;
}
while (truncated)
truncated = SOCK_get_string(sock, msgbuffer, sizeof(msgbuffer));
truncated = SOCK_get_string(sock, msgbuffer, sizeof(msgbuffer));
}
}
else
{
msg_truncated = truncated;
/* Remove a newline */