summaryrefslogtreecommitdiff
path: root/usr.bin/file/print.c
blob: 804eb79b0c2da43f762505acc3af135ff61573da (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/*	$OpenBSD: print.c,v 1.7 2002/02/19 19:39:38 millert Exp $	*/

/*
 * 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 <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <err.h>
#include "file.h"

#ifndef lint
static char *moduleid = "$OpenBSD: print.c,v 1.7 2002/02/19 19:39:38 millert Exp $";
#endif  /* lint */

#define SZOF(a)	(sizeof(a) / sizeof(a[0]))

void
mdump(m)
struct magic *m;
{
	static char *typ[] = {   "invalid", "byte", "short", "invalid",
				 "long", "string", "date", "beshort",
				 "belong", "bedate", "leshort", "lelong",
				 "ledate" };
	(void) fputc('[', stderr);
	(void) fprintf(stderr, ">>>>>>>> %d" + 8 - (m->cont_level & 7),
		       m->offset);

	if (m->flag & INDIR)
		(void) fprintf(stderr, "(%s,%d),",
			       (m->in.type >= 0 && m->in.type < SZOF(typ)) ? 
					typ[(unsigned char) m->in.type] :
					"*bad*",
			       m->in.offset);

	(void) fprintf(stderr, " %s%s", (m->flag & UNSIGNED) ? "u" : "",
		       (m->type >= 0 && m->type < SZOF(typ)) ? 
				typ[(unsigned char) m->type] : 
				"*bad*");
	if (m->mask != ~0)
		(void) fprintf(stderr, " & %.8x", m->mask);

	(void) fprintf(stderr, ",%c", m->reln);

	if (m->reln != 'x') {
	    switch (m->type) {
	    case BYTE:
	    case SHORT:
	    case LONG:
	    case LESHORT:
	    case LELONG:
	    case BESHORT:
	    case BELONG:
		    (void) fprintf(stderr, "%d", m->value.l);
		    break;
	    case STRING:
		    showstr(stderr, m->value.s, -1);
		    break;
	    case DATE:
	    case LEDATE:
	    case BEDATE:
		    {
			    char *rt, *pp = ctime((time_t*) &m->value.l);
			    if ((rt = strchr(pp, '\n')) != NULL)
				    *rt = '\0';
			    (void) fprintf(stderr, "%s,", pp);
			    if (rt)
				    *rt = '\n';
		    }
		    break;
	    default:
		    (void) fputs("*bad*", stderr);
		    break;
	    }
	}
	(void) fprintf(stderr, ",\"%s\"]\n", m->desc);
}

/*
 * ckfputs - futs, but with error checking
 * ckfprintf - fprintf, but with error checking
 */
void
ckfputs(str, fil) 	
    const char *str;
    FILE *fil;
{
	if (fputs(str,fil) == EOF)
		err(1, "write failed");
}

/*VARARGS*/
void
ckfprintf(FILE *f, const char *fmt, ...)
{
	va_list va;

	va_start(va, fmt);
	(void) vfprintf(f, fmt, va);
	if (ferror(f))
		err(1, "write failed");
	va_end(va);
}