fg_error.c File Reference

Error-reporting routines used by Flowgrind. More...

#include "config.h"
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "fg_progname.h"
#include "fg_error.h"

Go to the source code of this file.

Functions
void	error (enum error_levels level, int errnum, const char *fmt,...)

Detailed Description

Error-reporting routines used by Flowgrind.

Definition in file fg_error.c.

Function Documentation

error()

void error	(	enum error_levels	level,
		int	errnum,
		const char *	fmt,
			...
	)

Definition at line 38 of file fg_error.c.

{
 
        const char *err_prefix = NULL;
        switch (level) {
        case ERR_WARNING:
                err_prefix = "warning";
                break;
        case ERR_ERROR:
        case ERR_CRIT:
                err_prefix = "error";
                break;
        default:
                err_prefix = "unknown error";
        }
 
        fprintf(stderr, "%s: %s: ", progname, err_prefix);
 
        va_list ap;
        va_start(ap, fmt);
        vfprintf(stderr, fmt, ap);
        va_end(ap);
 
        const char *err_errnum = NULL;
        if (errnum) {
                err_errnum = strerror(errnum);
                if (!err_errnum)
                        err_errnum = "unknown system error";
                fprintf (stderr, ": %s", err_errnum);
        }
 
        fprintf(stderr, "\n");
        fflush (stderr);
 
        if (level > ERR_ERROR)
                exit(EXIT_FAILURE);
}