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/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/error.c,v 1.19 2007/11/15 21:14:45 momjian Exp $ */
#define POSTGRES_ECPG_INTERNAL
#include "postgres_fe.h"
#include "ecpgerrno.h"
#include "ecpgtype.h"
#include "ecpglib.h"
#include "extern.h"
#include "sqlca.h"
void
ecpg_raise(int line, int code, const char *sqlstate, const char *str)
{
struct sqlca_t *sqlca = ECPGget_sqlca();
sqlca->sqlcode = code;
strncpy(sqlca->sqlstate, sqlstate, sizeof(sqlca->sqlstate));
switch (code)
{
case ECPG_NOT_FOUND:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"No data found in line %d.", line);
break;
case ECPG_OUT_OF_MEMORY:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Out of memory in line %d.", line);
break;
case ECPG_UNSUPPORTED:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Unsupported type %s in line %d.", str, line);
break;
case ECPG_TOO_MANY_ARGUMENTS:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Too many arguments in line %d.", line);
break;
case ECPG_TOO_FEW_ARGUMENTS:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Too few arguments in line %d.", line);
break;
case ECPG_INT_FORMAT:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Not correctly formatted int type: %s line %d.", str, line);
break;
case ECPG_UINT_FORMAT:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Not correctly formatted unsigned type: %s in line %d.", str, line);
break;
case ECPG_FLOAT_FORMAT:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Not correctly formatted floating-point type: %s in line %d.", str, line);
break;
case ECPG_CONVERT_BOOL:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Could not convert %s to bool on line %d.", str, line);
break;
case ECPG_EMPTY:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Empty query in line %d.", line);
break;
case ECPG_MISSING_INDICATOR:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"NULL value without indicator in line %d.", line);
break;
case ECPG_NO_ARRAY:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Variable is not an array in line %d.", line);
break;
case ECPG_DATA_NOT_ARRAY:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Data read from backend is not an array in line %d.", line);
break;
case ECPG_ARRAY_INSERT:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Trying to insert an array of variables in line %d.", line);
break;
case ECPG_NO_CONN:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"No such connection %s in line %d.", str, line);
break;
case ECPG_NOT_CONN:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Not connected to '%s' in line %d.", str, line);
break;
case ECPG_INVALID_STMT:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Invalid statement name %s in line %d.", str, line);
break;
case ECPG_UNKNOWN_DESCRIPTOR:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Descriptor %s not found in line %d.", str, line);
break;
case ECPG_INVALID_DESCRIPTOR_INDEX:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Descriptor index out of range in line %d.", line);
break;
case ECPG_UNKNOWN_DESCRIPTOR_ITEM:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Unknown descriptor item %s in line %d.", str, line);
break;
case ECPG_VAR_NOT_NUMERIC:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Variable is not a numeric type in line %d.", line);
break;
case ECPG_VAR_NOT_CHAR:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Variable is not a character type in line %d.", line);
break;
case ECPG_TRANS:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Error in transaction processing in line %d.", line);
break;
case ECPG_CONNECT:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"Could not connect to database %s in line %d.", str, line);
break;
default:
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"SQL error #%d in line %d.", code, line);
break;
}
sqlca->sqlerrm.sqlerrml = strlen(sqlca->sqlerrm.sqlerrmc);
ecpg_log("raising sqlcode %d in line %d, '%s'.\n", code, line, sqlca->sqlerrm.sqlerrmc);
/* free all memory we have allocated for the user */
ECPGfree_auto_mem();
}
void
ecpg_raise_backend(int line, PGresult *result, PGconn *conn, int compat)
{
struct sqlca_t *sqlca = ECPGget_sqlca();
char *sqlstate;
char *message;
if (result)
{
sqlstate = PQresultErrorField(result, PG_DIAG_SQLSTATE);
if (sqlstate == NULL)
sqlstate = ECPG_SQLSTATE_ECPG_INTERNAL_ERROR;
message = PQresultErrorField(result, PG_DIAG_MESSAGE_PRIMARY);
}
else
{
sqlstate = ECPG_SQLSTATE_ECPG_INTERNAL_ERROR;
message = PQerrorMessage(conn);
}
/* copy error message */
snprintf(sqlca->sqlerrm.sqlerrmc, sizeof(sqlca->sqlerrm.sqlerrmc),
"'%s' in line %d.", message, line);
sqlca->sqlerrm.sqlerrml = strlen(sqlca->sqlerrm.sqlerrmc);
/* copy SQLSTATE */
strncpy(sqlca->sqlstate, sqlstate, sizeof(sqlca->sqlstate));
/* assign SQLCODE for backward compatibility */
if (strncmp(sqlca->sqlstate, "23505", sizeof(sqlca->sqlstate)) == 0)
sqlca->sqlcode = INFORMIX_MODE(compat) ? ECPG_INFORMIX_DUPLICATE_KEY : ECPG_DUPLICATE_KEY;
else if (strncmp(sqlca->sqlstate, "21000", sizeof(sqlca->sqlstate)) == 0)
sqlca->sqlcode = INFORMIX_MODE(compat) ? ECPG_INFORMIX_SUBSELECT_NOT_ONE : ECPG_SUBSELECT_NOT_ONE;
else
sqlca->sqlcode = ECPG_PGSQL;
ecpg_log("raising sqlstate %.*s (sqlcode: %d) in line %d, '%s'.\n",
sizeof(sqlca->sqlstate), sqlca->sqlstate, sqlca->sqlcode, line, sqlca->sqlerrm.sqlerrmc);
/* free all memory we have allocated for the user */
ECPGfree_auto_mem();
}
/* filter out all error codes */
bool
ecpg_check_PQresult(PGresult *results, int lineno, PGconn *connection, enum COMPAT_MODE compat)
{
if (results == NULL)
{
ecpg_log("ecpg_check_PQresult line %d: error: %s", lineno, PQerrorMessage(connection));
ecpg_raise_backend(lineno, NULL, connection, compat);
return (false);
}
switch (PQresultStatus(results))
{
case PGRES_TUPLES_OK:
return (true);
break;
case PGRES_EMPTY_QUERY:
/* do nothing */
ecpg_raise(lineno, ECPG_EMPTY, ECPG_SQLSTATE_ECPG_INTERNAL_ERROR, NULL);
PQclear(results);
return (false);
break;
case PGRES_COMMAND_OK:
return (true);
break;
case PGRES_NONFATAL_ERROR:
case PGRES_FATAL_ERROR:
case PGRES_BAD_RESPONSE:
ecpg_log("ecpg_check_PQresult line %d: Error: %s", lineno, PQresultErrorMessage(results));
ecpg_raise_backend(lineno, results, connection, compat);
PQclear(results);
return (false);
break;
case PGRES_COPY_OUT:
return (true);
break;
case PGRES_COPY_IN:
ecpg_log("ecpg_check_PQresult line %d: Got PGRES_COPY_IN ... tossing.\n", lineno);
PQendcopy(connection);
PQclear(results);
return (false);
break;
default:
ecpg_log("ecpg_check_PQresult line %d: Got something else, postgres error.\n",
lineno);
ecpg_raise_backend(lineno, results, connection, compat);
PQclear(results);
return (false);
break;
}
}
/* print out an error message */
void
sqlprint(void)
{
struct sqlca_t *sqlca = ECPGget_sqlca();
sqlca->sqlerrm.sqlerrmc[sqlca->sqlerrm.sqlerrml] = '\0';
fprintf(stderr, "sql error %s\n", sqlca->sqlerrm.sqlerrmc);
}
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