usr/src/usr.bin/file/print.c

/*
 * print.c - debugging printout routines
 *
 * Copyright (c) Ian F. Darwin, 1987.
 * Written by Ian F. Darwin.
 *
 * This software is not subject to any license of the American Telephone
 * and Telegraph Company or of the Regents of the University of California.
 *
 * Permission is granted to anyone to use this software for any purpose on
 * any computer system, and to alter it and redistribute it freely, subject
 * to the following restrictions:
 *
 * 1. The author is not responsible for the consequences of use of this
 *    software, no matter how awful, even if they arise from flaws in it.
 *
 * 2. The origin of this software must not be misrepresented, either by
 *    explicit claim or by omission.  Since few users ever read sources,
 *    credits must appear in the documentation.
 *
 * 3. Altered versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.  Since few users
 *    ever read sources, credits must appear in the documentation.
 *
 * 4. This notice may not be removed or altered.
 */

#include <stdio.h>
#include <errno.h>
#include "file.h"

#ifndef lint
static char *moduleid =
        "@(#)$Header: print.c,v 1.11 88/01/15 12:17:06 ian Exp $";
#endif  /* lint */

#define MAXSTR          500

extern char *progname;
extern char *magicfile;
extern int debug, nmagic;       /* number of valid magic[]s */
extern void showstr();

mdump(m)
struct magic *m;
{
        (void) printf("%d\t%d\t%d\t%c\t",
                m->contflag,
                m->offset,
                m->type,
                m->reln,
                0);
        if (m->type == STRING)
                showstr(m->value.s);
        else
                (void) printf("%d",m->value.l);
        (void) printf("\t%s", m->desc);
        (void) putchar('\n');
}

/*
 * error - print best error message possible and exit
 */
/*ARGSUSED1*/
/*VARARGS*/
void
error(s1, s2)
char *s1, *s2;
{
        warning(s1, s2);
        exit(1);
}

/*ARGSUSED1*/
/*VARARGS*/
warning(f, a)
char *f, *a;
{
        extern int errno, sys_nerr;
        extern char *sys_errlist[];
        int myerrno;

        myerrno = errno;

        /* cuz we use stdout for most, stderr here */
        (void) fflush(stdout);

        if (progname != NULL) {
                (void) fputs(progname, stderr);
                (void) putc(':', stderr);
                (void) putc(' ', stderr);
        }
        (void) fprintf(stderr, f, a);
        if (myerrno > 0 && myerrno < sys_nerr)
                (void) fprintf(stderr, " (%s)", sys_errlist[myerrno]);
        putc('\n', stderr);
}