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dbdimp.c
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dbdimp.c
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/*
* portions Copyright (c) 1994,1995,1996,1997 Tim Bunce
* portions Copyright (c) 1997 Thomas K. Wenrich
* portions Copyright (c) 1997-2001 Jeff Urlwin
* portions Copyright (c) 2007-2013 Martin J. Evans
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the Perl README file.
*
*/
/*
* NOTES:
*
* o Trace levels 1 and 2 are reserved for DBI (see DBI::DBD) so don't
* use them here in DBIc_TRACE_LEVEL tests.
* "Trace Levels" in DBI defines trace levels as:
* 0 - Trace disabled.
* 1 - Trace DBI method calls returning with results or errors.
* 2 - Trace method entry with parameters and returning with results.
* 3 - As above, adding some high-level information from the driver
* and some internal information from the DBI.
* 4 - As above, adding more detailed information from the driver.
* 5 to 15 - As above but with more and more obscure information.
*
* SV Manipulation Functions
* http://perl.active-venture.com/pod/perlapi-svfunctions.html
* Formatted Printing of IVs, UVs, and NVs
* http://perldoc.perl.org/perlguts.html#Formatted-Printing-of-IVs,-UVs,-and-NVs
* http://cpansearch.perl.org/src/RURBAN/illguts-0.44/index.html
* Internal replacements for standard C library functions:
* http://perldoc.perl.org/perlclib.html
* http://search.cpan.org/dist/Devel-PPPort/PPPort.pm
*
* MS ODBC 64 bit:
* http://msdn.microsoft.com/en-us/library/ms716287%28v=vs.85%29.aspx
*/
#include <limits.h>
#define NEED_newRV_noinc
#define NEED_sv_2pv_flags
#define NEED_my_snprintf
#include "ODBC.h"
#if defined(WITH_UNICODE)
# include "unicode_helper.h"
#endif
/* trap iODBC on Unicode builds */
#if defined(WITH_UNICODE) && (defined(_IODBCUNIX_H) || defined(_IODBCEXT_H))
#error DBD::ODBC will not run properly with iODBC in unicode mode as iODBC defines wide characters as being 4 bytes in size
#endif
/* DBI defines the following but not until 1.617 so we replicate here for now */
/* will remove when DBD::ODBC requires 1.617 or above */
#ifndef DBIf_TRACE_SQL
# define DBIf_TRACE_SQL 0x00000100
#endif
#ifndef DBIf_TRACE_CON
# define DBIf_TRACE_CON 0x00000200
#endif
#ifndef DBIf_TRACE_ENC
# define DBIf_TRACE_ENC 0x00000400
#endif
#ifndef DBIf_TRACE_DBD
# define DBIf_TRACE_DBD 0x00000800
#endif
#ifndef DBIf_TRACE_TXN
# define DBIf_TRACE_TXN 0x000001000
#endif
/* combined DBI trace connection and encoding flags with DBD::ODBC ones */
/* Historically DBD::ODBC had 2 flags before they were made DBI ones */
#define UNICODE_TRACING (0x02000000|DBIf_TRACE_ENC|DBIf_TRACE_DBD)
#define CONNECTION_TRACING (0x04000000|DBIf_TRACE_CON|DBIf_TRACE_DBD)
#define DBD_TRACING DBIf_TRACE_DBD
#define TRANSACTION_TRACING (DBIf_TRACE_TXN|DBIf_TRACE_DBD)
#define SQL_TRACING (DBIf_TRACE_SQL|DBIf_TRACE_DBD)
#define TRACE0(a,b) PerlIO_printf(DBIc_LOGPIO(a), (b))
#define TRACE1(a,b,c) PerlIO_printf(DBIc_LOGPIO(a), (b), (c))
#define TRACE2(a,b,c,d) PerlIO_printf(DBIc_LOGPIO(a), (b), (c), (d))
#define TRACE3(a,b,c,d,e) PerlIO_printf(DBIc_LOGPIO(a), (b), (c), (d), (e))
/* An error return reserved for our internal use and should not clash with
any ODBC error codes like SQL_ERROR, SQL_INVALID_HANDLE etc.
It is used so we can call dbd_error but indicate there is no point in
calling SQLError as the error is internal */
#define DBDODBC_INTERNAL_ERROR -999
static int taf_callback_wrapper (
void *handle,
int type,
int event);
static int get_row_diag(SQLSMALLINT recno,
imp_sth_t *imp_sth,
char *state,
SQLINTEGER *native,
char *msg,
size_t max_msg);
static SQLSMALLINT default_parameter_type(
char *why, imp_sth_t *imp_sth, phs_t *phs);
static int post_connect(pTHX_ SV *dbh, imp_dbh_t *imp_dbh, SV *attr);
static int set_odbc_version(pTHX_ SV *dbh, imp_dbh_t *imp_dbh, SV* attr);
static const char *S_SqlTypeToString (SWORD sqltype);
static const char *S_SqlCTypeToString (SWORD sqltype);
static const char *cSqlTables = "SQLTables(%s,%s,%s,%s)";
static const char *cSqlPrimaryKeys = "SQLPrimaryKeys(%s,%s,%s)";
static const char *cSqlStatistics = "SQLStatistics(%s,%s,%s,%d,%d)";
static const char *cSqlForeignKeys = "SQLForeignKeys(%s,%s,%s,%s,%s,%s)";
static const char *cSqlColumns = "SQLColumns(%s,%s,%s,%s)";
static const char *cSqlGetTypeInfo = "SQLGetTypeInfo(%d)";
static SQLRETURN bind_columns(SV *h, imp_sth_t *imp_sth);
static void AllODBCErrors(HENV henv, HDBC hdbc, HSTMT hstmt, int output,
PerlIO *logfp);
static int check_connection_active(pTHX_ SV *h);
static int build_results(pTHX_ SV *sth, imp_sth_t *imp_sth,
SV *dbh, imp_dbh_t *imp_dbh,
RETCODE orc);
static int rebind_param(pTHX_ SV *sth, imp_sth_t *imp_sth, imp_dbh_t *imp_dbh, phs_t *phs);
static void get_param_type(SV *sth, imp_sth_t *imp_sth, imp_dbh_t *imp_dbh, phs_t *phs);
static void check_for_unicode_param(imp_sth_t *imp_sth, phs_t *phs);
/* Function to get the console window handle which we may use in SQLDriverConnect on WIndows */
#ifdef WIN32
static HWND GetConsoleHwnd(void);
#endif
int dbd_describe(SV *sth, imp_sth_t *imp_sth, int more);
int dbd_db_login6_sv(SV *dbh, imp_dbh_t *imp_dbh, SV *dbname,
SV *uid, SV *pwd, SV *attr);
int dbd_db_login6(SV *dbh, imp_dbh_t *imp_dbh, char *dbname,
char *uid, char *pwd, SV *attr);
int dbd_st_finish(SV *sth, imp_sth_t *imp_sth);
IV dbd_st_execute_iv(SV *sth, imp_sth_t *imp_sth);
/* for sanity/ease of use with potentially null strings */
#define XXSAFECHAR(p) ((p) ? (p) : "(null)")
/* unique value for db attrib that won't conflict with SQL types, just
* increment by one if you are adding */
#define ODBC_IGNORE_NAMED_PLACEHOLDERS 0x8332
#define ODBC_DEFAULT_BIND_TYPE 0x8333
#define ODBC_ASYNC_EXEC 0x8334
#define ODBC_ERR_HANDLER 0x8335
#define ODBC_ROWCACHESIZE 0x8336
#define ODBC_ROWSINCACHE 0x8337
#define ODBC_FORCE_REBIND 0x8338
#define ODBC_EXEC_DIRECT 0x8339
#define ODBC_VERSION 0x833A
#define ODBC_CURSORTYPE 0x833B
#define ODBC_QUERY_TIMEOUT 0x833C
#define ODBC_HAS_UNICODE 0x833D
#define ODBC_PUTDATA_START 0x833E
#define ODBC_OUTCON_STR 0x833F
#define ODBC_COLUMN_DISPLAY_SIZE 0x8340
#define ODBC_UTF8_ON 0x8341
#define ODBC_FORCE_BIND_TYPE 0x8342
#define ODBC_DESCRIBE_PARAMETERS 0x8344
#define ODBC_DRIVER_COMPLETE 0x8345
#define ODBC_BATCH_SIZE 0x8346
#define ODBC_ARRAY_OPERATIONS 0x8347
#define ODBC_TAF_CALLBACK 0x8348
/* This is the bind type for parameters we fall back to if the bind_param
method was not given a parameter type and SQLDescribeParam is not supported
or failed.
It also defines the point we switch from VARCHAR to LONGVARCHAR */
#ifdef WITH_UNICODE
# define ODBC_BACKUP_BIND_TYPE_VALUE SQL_WVARCHAR
# define ODBC_SWITCH_TO_LONGVARCHAR 2000
#else
# define ODBC_BACKUP_BIND_TYPE_VALUE SQL_VARCHAR
# define ODBC_SWITCH_TO_LONGVARCHAR 4000
#endif
DBISTATE_DECLARE;
void dbd_init(dbistate_t *dbistate)
{
dTHX;
DBISTATE_INIT;
PERL_UNUSED_ARG(dbistate);
}
static RETCODE odbc_set_query_timeout(
imp_dbh_t *imp_dbh, HSTMT hstmt, UV odbc_timeout)
{
RETCODE rc;
if (DBIc_TRACE(imp_dbh, DBD_TRACING, 0, 3)) {
TRACE1(imp_dbh, " Set timeout to: %"UVuf"\n", odbc_timeout);
}
rc = SQLSetStmtAttr(hstmt,(SQLINTEGER)SQL_ATTR_QUERY_TIMEOUT,
(SQLPOINTER)odbc_timeout,(SQLINTEGER)SQL_IS_INTEGER);
if (!SQL_SUCCEEDED(rc)) {
/* Some drivers get upset with this so we ignore errors and just trace the problem */
if (DBIc_TRACE(imp_dbh, DBD_TRACING, 0, 3))
TRACE1(
imp_dbh,
" Failed to set Statement ATTR Query Timeout to %"UVuf"\n",
odbc_timeout);
}
return rc;
}
static void odbc_clear_result_set(SV *sth, imp_sth_t *imp_sth)
{
dTHX;
SV *value;
char *key;
I32 keylen;
if (DBIc_TRACE(imp_sth, DBD_TRACING, 0, 3)) {
TRACE0(imp_sth, "odbc_clear_result_set\n");
}
Safefree(imp_sth->fbh);
Safefree(imp_sth->ColNames);
Safefree(imp_sth->RowBuffer);
/* dgood - Yikes! I don't want to go down to this level, */
/* but if I don't, it won't figure out that the */
/* number of columns have changed... */
if (DBIc_FIELDS_AV(imp_sth)) {
sv_free((SV*)DBIc_FIELDS_AV(imp_sth));
DBIc_FIELDS_AV(imp_sth) = Nullav;
}
while ( (value = hv_iternextsv((HV*)SvRV(sth), &key, &keylen)) ) {
if (strncmp(key, "NAME_", 5) == 0 ||
strncmp(key, "TYPE", 4) == 0 ||
strncmp(key, "PRECISION", 9) == 0 ||
strncmp(key, "SCALE", 5) == 0 ||
strncmp(key, "NULLABLE", 8) == 0) {
(void)hv_delete((HV*)SvRV(sth), key, keylen, G_DISCARD);
if (DBIc_TRACE(imp_sth, DBD_TRACING, 0, 4)) {
TRACE2(imp_sth, " ODBC_CLEAR_RESULTS '%s' => %s\n",
key, neatsvpv(value,0));
}
}
}
imp_sth->fbh = NULL;
imp_sth->ColNames = NULL;
imp_sth->RowBuffer = NULL;
imp_sth->done_desc = 0;
}
static void odbc_handle_outparams(pTHX_ imp_sth_t *imp_sth, int debug)
{
int i = (imp_sth->out_params_av) ? AvFILL(imp_sth->out_params_av)+1 : 0;
if (debug >= 3)
TRACE1(imp_sth, " processing %d output parameters\n", i);
while (--i >= 0) {
phs_t *phs = (phs_t*)(void*)SvPVX(AvARRAY(imp_sth->out_params_av)[i]);
SV *sv = phs->sv;
if (debug >= 8) {
TRACE2(imp_sth, " outparam %s, length:%ld\n",
phs->name, (long)phs->strlen_or_ind);
}
/* phs->strlen_or_ind has been updated by ODBC to hold the length
* of the result */
if (phs->strlen_or_ind != SQL_NULL_DATA) {
/*
* When ODBC fills an output parameter buffer, the size of the
* data that were available is written into the memory location
* provided by strlen_or_ind pointer argument during the
* SQLBindParameter() call.
*
* If the number of bytes available exceeds the size of the output
* buffer, ODBC will truncate the data such that it fits in the
* available buffer. However, the strlen_or_ind will still reflect
* the size of the data before it was truncated.
*
* This fact provides us a way to detect truncation on this particular
* output parameter. Otherwise, the only way to detect truncation is
* through a follow-up to a SQL_SUCCESS_WITH_INFO result. Such a call
* cannot return enough information to state exactly where the
* truncation occurred.
*/
SvPOK_only(sv); /* string, disable other OK bits */
if (phs->strlen_or_ind > phs->maxlen) { /* out param truncated */
SvCUR_set(sv, phs->maxlen);
*SvEND(sv) = '\0'; /* null terminate */
if (debug >= 2) {
PerlIO_printf(
DBIc_LOGPIO(imp_sth),
" outparam %s = '%s'\t(TRUNCATED from %ld to %ld)\n",
phs->name, SvPV_nolen(sv), (long)phs->strlen_or_ind,
(long)phs->maxlen);
}
} else { /* no truncation occurred */
SvCUR_set(sv, phs->strlen_or_ind); /* new length */
*SvEND(sv) = '\0'; /* null terminate */
if (phs->strlen_or_ind == phs->maxlen &&
(phs->sql_type == SQL_NUMERIC ||
phs->sql_type == SQL_DECIMAL ||
phs->sql_type == SQL_INTEGER ||
phs->sql_type == SQL_SMALLINT ||
phs->sql_type == SQL_FLOAT ||
phs->sql_type == SQL_REAL ||
phs->sql_type == SQL_DOUBLE)) {
/*
* fix up for oracle, which leaves the buffer at the size
* requested, but only returns a few characters. The
* intent is to truncate down to the actual number of
* characters necessary. Need to find the first null
* byte and set the length there.
*/
char *pstart = SvPV_nolen(sv);
char *p = pstart;
while (*p != '\0') {
p++;
}
if (debug >= 2) {
PerlIO_printf(
DBIc_LOGPIO(imp_sth),
" outparam %s = '%s'\t(len %ld), is numeric end"
" of buffer = %ld\n",
phs->name, SvPV(sv,PL_na), (long)phs->strlen_or_ind,
(long)(p - pstart));
}
SvCUR_set(sv, p - pstart);
}
}
} else { /* is NULL */
if (debug >= 2)
TRACE1(imp_sth, " outparam %s = undef (NULL)\n", phs->name);
(void)SvOK_off(phs->sv);
}
}
}
static int build_results(pTHX_ SV *sth,
imp_sth_t *imp_sth,
SV *dbh,
imp_dbh_t *imp_dbh,
RETCODE orc)
{
RETCODE rc;
if (DBIc_TRACE(imp_sth, DBD_TRACING, 0, 3))
TRACE2(imp_sth, " build_results sql %p\t%s\n",
imp_sth->hstmt, imp_sth->statement);
/* init sth pointers */
imp_sth->fbh = NULL;
imp_sth->ColNames = NULL;
imp_sth->RowBuffer = NULL;
imp_sth->RowCount = -1;
imp_sth->odbc_column_display_size = imp_dbh->odbc_column_display_size;
imp_sth->odbc_utf8_on = imp_dbh->odbc_utf8_on;
if (!dbd_describe(sth, imp_sth, 0)) {
if (DBIc_TRACE(imp_sth, DBD_TRACING, 0, 3)) {
TRACE0(imp_sth, " !!dbd_describe failed, build_results...!\n");
}
SQLFreeHandle(SQL_HANDLE_STMT, imp_sth->hstmt);
imp_sth->hstmt = SQL_NULL_HSTMT;
return 0; /* dbd_describe already called dbd_error() */
}
if (DBIc_TRACE(imp_sth, DBD_TRACING, 0, 3)) {
TRACE0(imp_sth, " dbd_describe build_results #2...!\n");
}
/* TO_DO why is dbd_describe called again? */
if (dbd_describe(sth, imp_sth, 0) <= 0) {
if (DBIc_TRACE(imp_sth, DBD_TRACING, 0, 3)) {
TRACE0(imp_sth, " dbd_describe build_results #3...!\n");
}
return 0;
}
DBIc_IMPSET_on(imp_sth);
if (orc != SQL_NO_DATA) {
imp_sth->RowCount = -1;
rc = SQLRowCount(imp_sth->hstmt, &imp_sth->RowCount);
dbd_error(sth, rc, "build_results/SQLRowCount");
if (rc != SQL_SUCCESS) {
DBIc_ROW_COUNT(imp_sth) = -1;
return -1;
}
DBIc_ROW_COUNT(imp_sth) = imp_sth->RowCount;
} else {
imp_sth->RowCount = 0;
DBIc_ROW_COUNT(imp_sth) = 0;
}
DBIc_ACTIVE_on(imp_sth); /* XXX should only set for select ? */
return 1;
}
int odbc_discon_all(SV *drh,
imp_drh_t *imp_drh)
{
dTHX;
/* The disconnect_all concept is flawed and needs more work */
if (!PL_dirty && !SvTRUE(get_sv("DBI::PERL_ENDING",0))) {
DBIh_SET_ERR_CHAR(drh, (imp_xxh_t*)imp_drh, Nullch, 1,
"disconnect_all not implemented", Nullch, Nullch);
return FALSE;
}
return FALSE;
}
/* error : <=(-2), ok row count : >=0, unknown count : (-1) */
SQLLEN dbd_db_execdirect(SV *dbh,
SV *statement )
{
dTHX;
D_imp_dbh(dbh);
SQLRETURN ret; /* SQLxxx return value */
SQLLEN rows;
SQLHSTMT stmt;
int dbh_active;
if ((dbh_active = check_connection_active(aTHX_ dbh)) == 0) return 0;
ret = SQLAllocHandle(SQL_HANDLE_STMT, imp_dbh->hdbc, &stmt );
if (!SQL_SUCCEEDED(ret)) {
dbd_error( dbh, ret, "Statement allocation error" );
return(-2);
}
/* if odbc_query_timeout has been set, set it in the driver */
if (imp_dbh->odbc_query_timeout != -1) {
ret = odbc_set_query_timeout(imp_dbh, stmt, imp_dbh->odbc_query_timeout);
if (!SQL_SUCCEEDED(ret)) {
dbd_error(dbh, ret, "execdirect set_query_timeout");
}
/* don't fail if the query timeout can't be set. */
}
if (DBIc_TRACE(imp_dbh, SQL_TRACING, 0, 3)) {
TRACE1(imp_dbh, " SQLExecDirect %s\n", SvPV_nolen(statement));
}
#ifdef WITH_UNICODE
if (SvOK(statement) && DO_UTF8(statement)) {
SQLWCHAR *wsql;
STRLEN wsql_len;
SV *sql_copy;
if (DBIc_TRACE(imp_dbh, UNICODE_TRACING, 0, 0)) /* odbcunicode */
TRACE0(imp_dbh, " Processing utf8 sql in unicode mode\n");
sql_copy = sv_mortalcopy(statement);
SV_toWCHAR(aTHX_ sql_copy);
wsql = (SQLWCHAR *)SvPV(sql_copy, wsql_len);
ret = SQLExecDirectW(stmt, wsql, wsql_len / sizeof(SQLWCHAR));
} else {
if (DBIc_TRACE(imp_dbh, UNICODE_TRACING, 0, 0)) /* odbcunicode */
TRACE0(imp_dbh, " Processing non utf8 sql in unicode mode\n");
ret = SQLExecDirect(stmt, (SQLCHAR *)SvPV_nolen(statement), SQL_NTS);
}
#else
if (DBIc_TRACE(imp_dbh, UNICODE_TRACING, 0, 0)) /* odbcunicode */
TRACE0(imp_dbh, " Processing sql in non-unicode mode\n");
ret = SQLExecDirect(stmt, (SQLCHAR *)SvPV_nolen(statement), SQL_NTS);
#endif
if (DBIc_TRACE(imp_dbh, DBD_TRACING, 0, 3))
TRACE1(imp_dbh, " SQLExecDirect = %d\n", ret);
if (!SQL_SUCCEEDED(ret) && ret != SQL_NO_DATA) {
dbd_error2(dbh, ret, "Execute immediate failed",
imp_dbh->henv, imp_dbh->hdbc, stmt );
rows = -2; /* error */
} else {
if (ret == SQL_NO_DATA) {
rows = 0;
}
else if (ret != SQL_SUCCESS) {
dbd_error2(dbh, ret, "Execute immediate success with info",
imp_dbh->henv, imp_dbh->hdbc, stmt );
}
ret = SQLRowCount(stmt, &rows);
if (!SQL_SUCCEEDED(ret)) {
dbd_error( dbh, ret, "SQLRowCount failed" );
rows = -1;
}
}
ret = SQLFreeHandle(SQL_HANDLE_STMT,stmt);
if (!SQL_SUCCEEDED(ret)) {
dbd_error2(dbh, ret, "Statement destruction error",
imp_dbh->henv, imp_dbh->hdbc, stmt);
}
return rows;
}
void dbd_db_destroy(SV *dbh, imp_dbh_t *imp_dbh)
{
if (DBIc_ACTIVE(imp_dbh))
dbd_db_disconnect(dbh, imp_dbh);
/* Nothing in imp_dbh to be freed */
DBIc_IMPSET_off(imp_dbh);
if (DBIc_TRACE(imp_dbh, DBD_TRACING, 0, 8))
TRACE0(imp_dbh, " DBD::ODBC Disconnected!\n");
}
/*
* quick dumb function to handle case insensitivity for DSN= or DRIVER=
* in DSN...note this is because strncmpi is not available on all
* platforms using that name (VC++, Debian, etc most notably).
* Note, also, strupr doesn't seem to have a standard name, either...
*/
int dsnHasDriverOrDSN(char *dsn) {
char upper_dsn[512];
char *cp = upper_dsn;
strncpy(upper_dsn, dsn, sizeof(upper_dsn)-1);
upper_dsn[sizeof(upper_dsn)-1] = '\0';
while (*cp != '\0') {
*cp = toupper(*cp);
cp++; /* see rt 79190 was a sequence point error*/
}
return (strncmp(upper_dsn, "DSN=", 4) == 0 ||
strncmp(upper_dsn, "DRIVER=", 7) == 0);
}
int dsnHasUIDorPWD(char *dsn) {
char upper_dsn[512];
char *cp = upper_dsn;
strncpy(upper_dsn, dsn, sizeof(upper_dsn)-1);
upper_dsn[sizeof(upper_dsn)-1] = '\0';
while (*cp != '\0') {
*cp = toupper(*cp);
cp++; /* see rt 79190 was a sequence point error*/
}
return (strstr(upper_dsn, "UID=") != 0 || strstr(upper_dsn, "PWD=") != 0);
}
/************************************************************************/
/* */
/* dbd_db_login */
/* ============ */
/* */
/* NOTE: This is the old 5 argument version with no attribs */
/* */
/************************************************************************/
int dbd_db_login(
SV *dbh,
imp_dbh_t *imp_dbh,
char *dbname,
char *uid,
char *pwd)
{
return dbd_db_login6(dbh, imp_dbh, dbname, uid, pwd, Nullsv);
}
/************************************************************************/
/* */
/* dbd_db_login6_sv */
/* ================ */
/* */
/* This API was introduced in DBI after 1.607 (subversion revision */
/* 11723) and is the same as dbd_db_login6 except the connection */
/* strings are SVs so we can detect unicode strings and call */
/* SQLDriveConnectW. */
/* */
/************************************************************************/
int dbd_db_login6_sv(
SV *dbh,
imp_dbh_t *imp_dbh,
SV *dbname,
SV *uid,
SV *pwd,
SV *attr)
{
dTHX;
#ifndef WITH_UNICODE
if (DBIc_TRACE(imp_dbh, CONNECTION_TRACING, 0, 0))
TRACE0(imp_dbh, "non-Unicode login6_sv\n");
return dbd_db_login6(dbh, imp_dbh, SvPV_nolen(dbname),
(SvOK(uid) ? SvPV_nolen(uid) : NULL),
(SvOK(pwd) ? SvPV_nolen(pwd) : NULL), attr);
#else
D_imp_drh_from_dbh;
SQLRETURN rc;
SV *wconstr; /* copy of connection string in wide chrs */
/* decoded connection string in wide characters and its length to work
around an issue in older unixODBCs */
SQLWCHAR dc_constr[512];
STRLEN dc_constr_len;
if (DBIc_TRACE(imp_dbh, CONNECTION_TRACING, 0, 0)) {
TRACE2(imp_dbh, "Unicode login6 dbname=%s, uid=%s, pwd=xxxxx\n",
SvPV_nolen(dbname), neatsvpv(uid, 0));
}
imp_dbh->out_connect_string = Nullsv;
if (!imp_drh->connects) {
rc = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &imp_drh->henv);
dbd_error(dbh, rc, "db_login6_sv/SQLAllocHandle(env)");
if (!SQL_SUCCEEDED(rc)) return 0;
if (set_odbc_version(aTHX_ dbh, imp_dbh, attr) != 1) return 0;
}
imp_dbh->henv = imp_drh->henv; /* needed for dbd_error */
/* If odbc_trace_file set, set it in ODBC */
{
SV **attr_sv;
char *file;
if ((attr_sv =
DBD_ATTRIB_GET_SVP(attr, "odbc_trace_file",
(I32)strlen("odbc_trace_file"))) != NULL) {
if (SvPOK(*attr_sv)) {
file = SvPV_nolen(*attr_sv);
rc = SQLSetConnectAttr(NULL, SQL_ATTR_TRACEFILE,
file, strlen(file));
if (!SQL_SUCCEEDED(rc)) {
warn("Failed to set trace file");
}
}
}
}
/* If odbc_trace enabled, turn ODBC tracing on */
{
UV dc = 0;
SV **svp;
DBD_ATTRIB_GET_IV(attr, "odbc_trace", 10, svp, dc);
if (svp && dc) {
rc = SQLSetConnectAttr(NULL, SQL_ATTR_TRACE,
(SQLPOINTER)SQL_OPT_TRACE_ON, 0);
if (!SQL_SUCCEEDED(rc)) {
warn("Failed to enable tracing");
}
}
}
rc = SQLAllocHandle(SQL_HANDLE_DBC, imp_drh->henv, &imp_dbh->hdbc);
if (!SQL_SUCCEEDED(rc)) {
dbd_error(dbh, rc, "db_login6_sv/SQLAllocHandle(dbc)");
if (imp_drh->connects == 0) {
SQLFreeHandle(SQL_HANDLE_ENV, imp_drh->henv);
imp_drh->henv = SQL_NULL_HENV;
imp_dbh->henv = SQL_NULL_HENV; /* needed for dbd_error */
}
return 0;
}
/* If odbc_driver_complete specified we need to grab it */
{
UV dc = 0;
SV **svp;
DBD_ATTRIB_GET_IV(attr, "odbc_driver_complete", 20, svp, dc);
if (svp && dc) {
imp_dbh->odbc_driver_complete = 1;
} else {
imp_dbh->odbc_driver_complete = 0;
}
}
/* If the connection string is too long to pass to SQLConnect or it
contains DSN or DRIVER, we've little choice but to call
SQLDriverConnect and need to tag the uid/pwd on the end of the
connection string (unless they already exist). */
if ((SvCUR(dbname) > SQL_MAX_DSN_LENGTH || /* too big for SQLConnect */
dsnHasDriverOrDSN(SvPV_nolen(dbname))) &&
!dsnHasUIDorPWD(SvPV_nolen(dbname))) {
if (SvOK(uid)) {
sv_catpv(dbname, ";UID=");
sv_catsv(dbname, uid);
}
if (SvOK(pwd)) {
sv_catpv(dbname, ";PWD=");
sv_catsv(dbname, pwd);
}
sv_catpv(dbname, ";");
/*sv_catpvf(dbname, ";UID=%s;PWD=%s;",
SvPV_nolen(uid), SvPV_nolen(pwd));*/
/*
if (DBIc_TRACE(imp_dbh, CONNECTION_TRACING, 0, 0))
TRACE1(imp_dbh, "Now using dbname = %s\n", SvPV_nolen(dbname));
*/
}
if (DBIc_TRACE(imp_dbh, CONNECTION_TRACING, 0, 0))
TRACE2(imp_dbh, " SQLDriverConnect '%s', '%s', 'xxxx'\n",
SvPV_nolen(dbname), neatsvpv(uid, 0));
wconstr = sv_mortalcopy(dbname);
utf8sv_to_wcharsv(aTHX_ wconstr);
/* The following is to work around a bug in SQLDriverConnectW in unixODBC
which in at least 2.2.11 (and probably up to 2.2.13 official release
[not pre-release]) core dumps if the wide connection string does not end
in a 0 (even though it should not matter as we pass the length. */
{
char *p;
memset(dc_constr, '\0', sizeof(dc_constr));
p = SvPV(wconstr, dc_constr_len);
if (dc_constr_len > (sizeof(dc_constr) - 2)) {
croak("Cannot process connection string - too long");
}
memcpy(dc_constr, p, dc_constr_len);
}
{
SQLWCHAR wout_str[512];
SQLSMALLINT wout_str_len;
#ifdef WIN32
if (imp_dbh->odbc_driver_complete) {
rc = SQLDriverConnectW(imp_dbh->hdbc,
GetConsoleHwnd(), /* no hwnd */
dc_constr,
(SQLSMALLINT)(dc_constr_len / sizeof(SQLWCHAR)),
wout_str, sizeof(wout_str) / sizeof(wout_str[0]),
&wout_str_len,
SQL_DRIVER_COMPLETE);
} else {
#endif
rc = SQLDriverConnectW(imp_dbh->hdbc,
0, /* no hwnd */
dc_constr,
(SQLSMALLINT)(dc_constr_len / sizeof(SQLWCHAR)),
wout_str, sizeof(wout_str) / sizeof(wout_str[0]),
&wout_str_len,
SQL_DRIVER_NOPROMPT);
#ifdef WIN32
}
#endif
if (SQL_SUCCEEDED(rc)) {
imp_dbh->out_connect_string = sv_newwvn(aTHX_ wout_str,
wout_str_len);
/*
if (DBIc_TRACE(imp_dbh, CONNECTION_TRACING, 0, 0))
TRACE1(imp_dbh, "Out connection string: %s\n",
SvPV_nolen(imp_dbh->out_connect_string));
*/
}
}
if (!SQL_SUCCEEDED(rc)) {
SV *wuid, *wpwd;
SQLWCHAR *wuidp, *wpwdp;
SQLSMALLINT uid_len, pwd_len;
if (DBIc_TRACE(imp_dbh, CONNECTION_TRACING, 0, 0))
TRACE0(imp_dbh, " SQLDriverConnectW failed:\n");
/*
* Added code for DBD::ODBC 0.39 to help return a better
* error code in the case where the user is using a
* DSN-less connection and the dbname doesn't look like a
* true DSN.
*/
if (SvCUR(dbname) > SQL_MAX_DSN_LENGTH ||
dsnHasDriverOrDSN(SvPV_nolen(dbname))) {
/* must be DSN= or some "direct" connection attributes,
* probably best to error here and give the user a real
* error code because the SQLConnect call could hide the
* real problem.
*/
dbd_error(dbh, rc, "db_login6sv/SQLDriverConnectW");
SQLFreeHandle(SQL_HANDLE_DBC, imp_dbh->hdbc);
if (imp_drh->connects == 0) {
SQLFreeHandle(SQL_HANDLE_ENV, imp_drh->henv);
imp_drh->henv = SQL_NULL_HENV;
imp_dbh->henv = SQL_NULL_HENV;
}
return 0;
}
/* ok, the DSN is short, so let's try to use it to connect
* and quietly take all error messages */
AllODBCErrors(imp_dbh->henv, imp_dbh->hdbc, 0, 0, DBIc_LOGPIO(imp_dbh));
if (DBIc_TRACE(imp_dbh, CONNECTION_TRACING, 0, 0))
TRACE2(imp_dbh, " SQLConnect '%s', '%s'\n",
neatsvpv(dbname, 0), neatsvpv(uid, 0));
wconstr = sv_mortalcopy(dbname);
utf8sv_to_wcharsv(aTHX_ wconstr);
if (SvOK(uid)) {
wuid = sv_mortalcopy(uid);
utf8sv_to_wcharsv(aTHX_ wuid);
wuidp = (SQLWCHAR *)SvPV_nolen(wuid);
uid_len = SvCUR(wuid) / sizeof(SQLWCHAR);
} else {
wuidp = NULL;
uid_len = 0;
}
if (SvOK(pwd)) {
wpwd = sv_mortalcopy(pwd);
utf8sv_to_wcharsv(aTHX_ wpwd);
wpwdp = (SQLWCHAR *)SvPV_nolen(wpwd);
pwd_len = SvCUR(wpwd) / sizeof(SQLWCHAR);
} else {
wpwdp = NULL;
pwd_len = 0;
}
rc = SQLConnectW(imp_dbh->hdbc,
(SQLWCHAR *)SvPV_nolen(wconstr),
(SQLSMALLINT)(SvCUR(wconstr) / sizeof(SQLWCHAR)),
wuidp, uid_len,
wpwdp, pwd_len);
}
if (!SQL_SUCCEEDED(rc)) {
dbd_error(dbh, rc, "db_login6sv/SQLConnectW");
SQLFreeHandle(SQL_HANDLE_DBC, imp_dbh->hdbc);
imp_dbh->hdbc = SQL_NULL_HDBC;
if (imp_drh->connects == 0) {
SQLFreeHandle(SQL_HANDLE_ENV, imp_drh->henv);
imp_drh->henv = SQL_NULL_HENV;
imp_dbh->henv = SQL_NULL_HENV;
}
return 0;
} else if (rc == SQL_SUCCESS_WITH_INFO) {
dbd_error(dbh, rc, "db_login6sv/SQLConnectW");
}
if (post_connect(aTHX_ dbh, imp_dbh, attr) != 1) return 0;
imp_drh->connects++;
DBIc_IMPSET_on(imp_dbh); /* imp_dbh set up now */
DBIc_ACTIVE_on(imp_dbh); /* call disconnect before freeing */
return 1;
#endif /* WITH_UNICODE */
}
/************************************************************************/
/* */
/* dbd_db_login6 */
/* ============= */
/* */
/* A newer version of the dbd_db_login API with the additional attr as */
/* the sixth argument. Once everyone upgrades to at least */
/* DBI 1.60X (where X > 7) this API won't get called anymore since */
/* dbd_db_login6_sv will be favoured. */
/* */
/* NOTE: I had hoped to make dbd_db_login6_sv support Unicode and */
/* dbd_db_login6 to not support Unicode but as no one (except me) has */
/* a DBI which supports dbd_db_login6_sv and unixODBC REQUIRES us to */
/* call SQLDriverConnectW if we are going to call other SQLXXXW */
/* functions later I've got no choice but to convert the ASCII strings */
/* passed to dbd_db_login6 to wide characters when DBD::ODBC is built */
/* for Unicode. */
/* */
/************************************************************************/
int dbd_db_login6(
SV *dbh,
imp_dbh_t *imp_dbh,
char *dbname,
char *uid,
char *pwd,
SV *attr)
{
dTHX;
D_imp_drh_from_dbh;
RETCODE rc;
char dbname_local[512];
#ifdef WITH_UNICODE
SQLWCHAR wconstr[512];
STRLEN wconstr_len;
unsigned int i;
#endif
if (DBIc_TRACE(imp_dbh, CONNECTION_TRACING, 0, 0))
TRACE0(imp_dbh, "dbd_db_login6\n");
if (!imp_drh->connects) {
rc = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &imp_drh->henv);
dbd_error(dbh, rc, "db_login6/SQLAllocHandle(env)");
if (!SQL_SUCCEEDED(rc)) return 0;
if (set_odbc_version(aTHX_ dbh, imp_dbh, attr) != 1) return 0;
}
imp_dbh->henv = imp_drh->henv; /* needed for dbd_error */
/* If odbc_trace_file set, set it in ODBC */
{
SV **attr_sv;
char *file;
if ((attr_sv =
DBD_ATTRIB_GET_SVP(attr, "odbc_trace_file",
(I32)strlen("odbc_trace_file"))) != NULL) {
if (SvPOK(*attr_sv)) {
file = SvPV_nolen(*attr_sv);
rc = SQLSetConnectAttr(NULL, SQL_ATTR_TRACEFILE,
file, strlen(file));
if (!SQL_SUCCEEDED(rc)) {
warn("Failed to set trace file");
}
}
}
}
/* If odbc_trace enabled, turn ODBC tracing on */
{
UV dc = 0;
SV **svp;
DBD_ATTRIB_GET_IV(attr, "odbc_trace", 10, svp, dc);
if (svp && dc) {
rc = SQLSetConnectAttr(NULL, SQL_ATTR_TRACE,
(SQLPOINTER)SQL_OPT_TRACE_ON, 0);
if (!SQL_SUCCEEDED(rc)) {
warn("Failed to enable tracing");
}
}
}
imp_dbh->out_connect_string = NULL;
rc = SQLAllocHandle(SQL_HANDLE_DBC, imp_drh->henv, &imp_dbh->hdbc);
if (!SQL_SUCCEEDED(rc)) {
dbd_error(dbh, rc, "db_login6/SQLAllocHandle(dbc)");
if (imp_drh->connects == 0) {
SQLFreeHandle(SQL_HANDLE_ENV, imp_drh->henv);
imp_drh->henv = SQL_NULL_HENV;
imp_dbh->henv = SQL_NULL_HENV; /* needed for dbd_error */
}
return 0;
}
#ifndef DBD_ODBC_NO_SQLDRIVERCONNECT
/* If the connection string is too long to pass to SQLConnect or it
contains DSN or DRIVER, we've little choice to but to call
SQLDriverConnect and need to tag the uid/pwd on the end of the
connection string (unless they already exist). */
if ((strlen(dbname) > SQL_MAX_DSN_LENGTH ||
dsnHasDriverOrDSN(dbname)) && !dsnHasUIDorPWD(dbname)) {
if ((strlen(dbname) +
(uid ? strlen(uid) : 0) +
(pwd ? strlen(pwd) : 0) +
12) >
sizeof(dbname_local)) {
croak("Connection string too long");
}
strcpy(dbname_local, dbname);
if (uid) {
strcat(dbname_local, ";UID=");
strcat(dbname_local, uid);
}
if (pwd) {
strcat(dbname_local, ";PWD=");
strcat(dbname_local, pwd);
}
dbname = dbname_local;
}
if (DBIc_TRACE(imp_dbh, CONNECTION_TRACING, 0, 0))
TRACE2(imp_dbh, " SQLDriverConnect '%s', '%s', 'xxxx'\n",
dbname, (uid ? uid : ""));
# ifdef WITH_UNICODE
if (strlen(dbname) > (sizeof(wconstr) / sizeof(wconstr[0]))) {