usr/src/lib/libc/gen/err.c

/*-
 * Copyright (c) 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)err.c       8.1 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

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

#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif

extern char *__progname;                /* Program name, from crt0. */

__dead void
#ifdef __STDC__
err(int eval, const char *fmt, ...)
#else
err(eval, fmt, va_alist)
        int eval;
        const char *fmt;
        va_dcl
#endif
{
        va_list ap;
#if __STDC__
        va_start(ap, fmt);
#else
        va_start(ap);
#endif
        verr(eval, fmt, ap);
        va_end(ap);
}

__dead void
verr(eval, fmt, ap)
        int eval;
        const char *fmt;
        va_list ap;
{
        int sverrno;

        sverrno = errno;
        (void)fprintf(stderr, "%s: ", __progname);
        if (fmt != NULL) {
                (void)vfprintf(stderr, fmt, ap);
                (void)fprintf(stderr, ": ");
        }
        (void)fprintf(stderr, "%s\n", strerror(sverrno));
        exit(eval);
}

__dead void
#if __STDC__
errx(int eval, const char *fmt, ...)
#else
errx(eval, fmt, va_alist)
        int eval;
        const char *fmt;
        va_dcl
#endif
{
        va_list ap;
#if __STDC__
        va_start(ap, fmt);
#else
        va_start(ap);
#endif
        verrx(eval, fmt, ap);
        va_end(ap);
}

__dead void
verrx(eval, fmt, ap)
        int eval;
        const char *fmt;
        va_list ap;
{
        (void)fprintf(stderr, "%s: ", __progname);
        if (fmt != NULL)
                (void)vfprintf(stderr, fmt, ap);
        (void)fprintf(stderr, "\n");
        exit(eval);
}

void
#if __STDC__
warn(const char *fmt, ...)
#else
warn(fmt, va_alist)
        const char *fmt;
        va_dcl
#endif
{
        va_list ap;
#if __STDC__
        va_start(ap, fmt);
#else
        va_start(ap);
#endif
        vwarn(fmt, ap);
        va_end(ap);
}

void
vwarn(fmt, ap)
        const char *fmt;
        va_list ap;
{
        int sverrno;

        sverrno = errno;
        (void)fprintf(stderr, "%s: ", __progname);
        if (fmt != NULL) {
                (void)vfprintf(stderr, fmt, ap);
                (void)fprintf(stderr, ": ");
        }
        (void)fprintf(stderr, "%s\n", strerror(sverrno));
}

void
#ifdef __STDC__
warnx(const char *fmt, ...)
#else
warnx(fmt, va_alist)
        const char *fmt;
        va_dcl
#endif
{
        va_list ap;
#ifdef __STDC__
        va_start(ap, fmt);
#else
        va_start(ap);
#endif
        vwarnx(fmt, ap);
        va_end(ap);
}

void
vwarnx(fmt, ap)
        const char *fmt;
        va_list ap;
{
        (void)fprintf(stderr, "%s: ", __progname);
        if (fmt != NULL)
                (void)vfprintf(stderr, fmt, ap);
        (void)fprintf(stderr, "\n");
}