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/* Simpilfied and improved Python Error/Exception functions
*
* 2009 (C) David Sommerseth <davids@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For the avoidance of doubt the "preferred form" of this code is one which
* is in an open unpatent encumbered format. Where cryptographic key signing
* forms part of the process of creating an executable the information
* including keys needed to generate an equivalently functional executable
* are deemed to be part of the source code.
*/
/**
* @file dmierror.h
* @brief Simpilfied and improved Python Error/Exception functions
* @author David Sommerseth <davids@redhat.com>
*/
#include <Python.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
// #define PRINT_ERRORS // Enable for copy of error messages to stderr
/**
* A more flexible function for setting error messages. This function
* is called via PyReturnError(...) macro which also returns NULL.
* @author David Sommerseth <davids@redhat.com>
* @param PyObject* A Python Exception object
* @param const char* Error message to follow the exception, may be string formated
*
*/
void _pyReturnError(void *exception, const char *fname, int line, const char *fmt, ...)
{
va_list ap;
char *buf = NULL;
va_start(ap, fmt);
buf = (char *) malloc(4098);
memset(buf, 0, 4098);
if( buf == NULL ) {
// Backup routine if we can't get the needed memory
fprintf(stderr, "\n\n** ERROR ALLOCATING ERROR MESSAGE BUFFER\n\n");
fprintf(stderr, "** ERROR: [%s:%i] ", fname, line);
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
va_end(ap);
return;
}
// Set the error state and message
snprintf(buf, 4096, "[%s:%i] %s", fname, line, fmt);
PyErr_Format(exception, buf, ap);
#ifdef PRINT_ERRORS
fprintf(stderr, "\n**\n** ERROR: ");
vfprintf(stderr, buf, ap);
fprintf(stderr, "\n**\n\n");
#endif
va_end(ap);
free(buf); buf = NULL;
}
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