/*
* Copyright (c) 2017 Nicholas Marriott <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#include <sys/types.h>

#include <errno.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "compat.h"

void
err(int eval, const char *fmt, ...)
{
       va_list  ap;
       int      saved_errno = errno;

       fprintf(stderr, "%s: ", getprogname());

       va_start(ap, fmt);
       if (fmt != NULL) {
               vfprintf(stderr, fmt, ap);
               fprintf(stderr, ": ");
       }
       va_end(ap);

       fprintf(stderr, "%s\n", strerror(saved_errno));
       exit(eval);
}

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

       fprintf(stderr, "%s: ", getprogname());

       va_start(ap, fmt);
       if (fmt != NULL)
               vfprintf(stderr, fmt, ap);
       va_end(ap);

       putc('\n', stderr);
       exit(eval);
}

void
warn(const char *fmt, ...)
{
       va_list  ap;
       int      saved_errno = errno;

       fprintf(stderr, "%s: ", getprogname());

       va_start(ap, fmt);
       if (fmt != NULL) {
               vfprintf(stderr, fmt, ap);
               fprintf(stderr, ": ");
       }
       va_end(ap);

       fprintf(stderr, "%s\n", strerror(saved_errno));
}

void
warnx(const char *fmt, ...)
{
       va_list  ap;

       fprintf(stderr, "%s: ", getprogname());

       va_start(ap, fmt);
       if (fmt != NULL)
               vfprintf(stderr, fmt, ap);
       va_end(ap);

       putc('\n', stderr);
}