/*-
* Copyright (c) 2003-2007 Tim Kientzle
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer
*    in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "lafe_platform.h"
#ifdef HAVE_STDARG_H
#include <stdarg.h>
#endif
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif

#include "err.h"

static void lafe_vwarnc(int, const char *, va_list) __LA_PRINTFLIKE(2, 0);

static const char *lafe_progname;

const char *
lafe_getprogname(void)
{

       return lafe_progname;
}

void
lafe_setprogname(const char *name, const char *defaultname)
{

       if (name == NULL)
               name = defaultname;
#if defined(_WIN32) && !defined(__CYGWIN__)
       lafe_progname = strrchr(name, '\\');
       if (strrchr(name, '/') > lafe_progname)
#endif
       lafe_progname = strrchr(name, '/');
       if (lafe_progname != NULL)
               lafe_progname++;
       else
               lafe_progname = name;
}

static void
lafe_vwarnc(int code, const char *fmt, va_list ap)
{
       fprintf(stderr, "%s: ", lafe_progname);
       vfprintf(stderr, fmt, ap);
       if (code != 0)
               fprintf(stderr, ": %s", strerror(code));
       fprintf(stderr, "\n");
}

void
lafe_warnc(int code, const char *fmt, ...)
{
       va_list ap;

       va_start(ap, fmt);
       lafe_vwarnc(code, fmt, ap);
       va_end(ap);
}

void
lafe_errc(int eval, int code, const char *fmt, ...)
{
       va_list ap;

       va_start(ap, fmt);
       lafe_vwarnc(code, fmt, ap);
       va_end(ap);
       exit(eval);
}