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Store statement and handle errors separately

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This commit is contained in:
Evan Miller 2020-08-19 17:22:54 -04:00
parent a84c07980f
commit 00b3ab9571
2 changed files with 35 additions and 26 deletions
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1
src/odbc/mdbodbc.h
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@ -56,6 +56,7 @@ struct _hstmt {
* please make dynamic before checking in
*/
char query[4096];
char lastError[256];
struct _sql_bind_info *bind_head;
int rows_affected;
int icol; /* SQLGetData: last column */

60
src/odbc/odbc.c
View File

@ -42,9 +42,6 @@ static void unbind_columns (struct _hstmt*);
#define FILL_FIELD(f,v,s) mdb_fill_temp_field(f,v,s,0,0,0,0)
#ifndef MIN
#define MIN(a,b) (a>b ? b : a)
#endif
static __thread char sqlState[6];
typedef struct {
@ -145,17 +142,22 @@ static int sqlwlen(SQLWCHAR *p){
}
#endif // ENABLE_ODBC_W
static void LogError(struct _hdbc* dbc, const char* format, ...)
static void LogHandleError(struct _hdbc* dbc, const char* format, ...)
{
/*
* Someday, I might make this store more than one error.
*/
va_list argp;
va_start(argp, format);
vsnprintf(dbc->lastError, sizeof(dbc->lastError), format, argp);
va_end(argp);
}
static void LogStatementError(struct _hstmt* stmt, const char* format, ...)
{
va_list argp;
va_start(argp, format);
vsnprintf(stmt->lastError, sizeof(stmt->lastError), format, argp);
va_end(argp);
}
static SQLRETURN do_connect (
SQLHDBC hdbc,
char *database)
@ -190,7 +192,7 @@ SQLRETURN SQL_API SQLDriverConnect(
if (ExtractDSN(params, (gchar*)szConnStrIn)) {
SetConnectString (params, (gchar*)szConnStrIn);
if (!(database = GetConnectParam (params, "Database"))){
LogError(hdbc, "Could not find Database parameter in '%s'", szConnStrIn);
LogHandleError(hdbc, "Could not find Database parameter in '%s'", szConnStrIn);
return SQL_ERROR;
}
ret = do_connect (hdbc, database);
@ -200,7 +202,7 @@ SQLRETURN SQL_API SQLDriverConnect(
ret = do_connect (hdbc, database);
return ret;
}
LogError(hdbc, "Could not find DSN nor DBQ in connect string '%s'", szConnStrIn);
LogHandleError(hdbc, "Could not find DSN nor DBQ in connect string '%s'", szConnStrIn);
return SQL_ERROR;
}
@ -284,7 +286,7 @@ SQLRETURN SQL_API SQLExtendedFetch(
TRACE("SQLExtendedFetch");
if (fFetchType!=SQL_FETCH_NEXT) {
LogError(stmt->hdbc, "Fetch type not supported in SQLExtendedFetch");
LogStatementError(stmt, "Fetch type not supported in SQLExtendedFetch");
return SQL_ERROR;
}
if (pcrow)
@ -617,7 +619,7 @@ SQLRETURN SQL_API SQLConnect(
if (!(database = GetConnectParam (params, "Database")))
{
LogError(hdbc, "Could not find Database parameter in '%s'", szDSN);
LogHandleError(hdbc, "Could not find Database parameter in '%s'", szDSN);
return SQL_ERROR;
}
@ -909,18 +911,23 @@ SQLRETURN SQL_API SQLError(
TRACE("SQLError");
//if(pfNativeError)fprintf(stderr,"NativeError %05d\n", *pfNativeError);
if (strlen(((struct _hdbc *)hdbc)->lastError) > 0)
{
strcpy ((char*)szSqlState, "08001");
int l = snprintf((char*)szErrorMsg, cbErrorMsgMax, "%s", ((struct _hdbc *)hdbc)->lastError);
if (pcbErrorMsg)
*pcbErrorMsg = l;
if (pfNativeError)
*pfNativeError = 1;
char *src = NULL;
if (hstmt) {
src = ((struct _hstmt *)hstmt)->lastError;
} else if (hdbc) {
src = ((struct _hdbc *)hdbc)->lastError;
}
if (src && src[0]) {
strcpy ((char*)szSqlState, "08001");
int l = snprintf((char*)szErrorMsg, cbErrorMsgMax, "%s", src);
if (pcbErrorMsg)
*pcbErrorMsg = l;
if (pfNativeError)
*pfNativeError = 1;
result = SQL_SUCCESS;
strcpy(((struct _hdbc *)hdbc)->lastError, "");
}
result = SQL_SUCCESS;
strcpy(src, "");
}
return result;
}
@ -945,10 +952,11 @@ SQLRETURN SQL_API SQLErrorW(
result = SQLError(henv, hdbc, hstmt, szSqlState8, pfNativeError, szErrorMsg8, 3*cbErrorMsgMax+1, &pcbErrorMsg8);
if (result == SQL_SUCCESS) {
struct _hdbc *dbc = hstmt ? ((struct _hstmt *)hstmt)->hdbc : hdbc;
size_t l=6, z=6*sizeof(SQLWCHAR);
ascii2unicode((struct _hdbc *)hdbc, (char*)szSqlState8, &l, (char*)szSqlState, &z);
ascii2unicode(dbc, (char*)szSqlState8, &l, (char*)szSqlState, &z);
l = cbErrorMsgMax;
ascii2unicode((struct _hdbc *)hdbc, (char*)szErrorMsg8, (size_t*)&pcbErrorMsg8, (char*)szErrorMsg, &l);
ascii2unicode(dbc, (char*)szErrorMsg8, (size_t*)&pcbErrorMsg8, (char*)szErrorMsg, &l);
if (pcbErrorMsg)
*pcbErrorMsg = l;
}
@ -969,7 +977,7 @@ SQLRETURN SQL_API SQLExecute(SQLHSTMT hstmt)
mdb_sql_run_query(stmt->sql, stmt->query);
if (mdb_sql_has_error(stmt->sql)) {
LogError(stmt->hdbc, "Couldn't parse SQL\n");
LogStatementError(stmt, "Couldn't parse SQL\n");
mdb_sql_reset(stmt->sql);
return SQL_ERROR;
} else {
@ -1323,7 +1331,7 @@ SQLRETURN SQL_API SQLColumns(
table = mdb_read_table(entry);
if ( !table )
{
LogError(stmt->hdbc, "Could not read table '%s'", szTableName);
LogStatementError(stmt, "Could not read table '%s'", szTableName);
return SQL_ERROR;
}
mdb_read_columns(table);