Update to file-4.19.
[dragonfly.git] / contrib / file-4 / src / print.c
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1/*
2 * Copyright (c) Ian F. Darwin 1986-1995.
3 * Software written by Ian F. Darwin and others;
4 * maintained 1995-present by Christos Zoulas and others.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice immediately at the beginning of the file, without modification,
11 * this list of conditions, and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28/*
29 * print.c - debugging printout routines
30 */
31
32#include "file.h"
33#include <stdio.h>
34#include <errno.h>
35#include <string.h>
36#include <stdarg.h>
37#include <stdlib.h>
38#ifdef HAVE_UNISTD_H
39#include <unistd.h>
40#endif
41#include <time.h>
42
43#ifndef lint
5fc399ce 44FILE_RCSID("@(#)$Id: print.c,v 1.56 2006/12/08 20:31:07 christos Exp $")
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45#endif /* lint */
46
47#define SZOF(a) (sizeof(a) / sizeof(a[0]))
48
49#ifndef COMPILE_ONLY
50protected void
51file_mdump(struct magic *m)
52{
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53 private const char optyp[] = { FILE_OPS };
54
5fc399ce 55 (void) fprintf(stderr, "[%zu", m->lineno);
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56 (void) fprintf(stderr, ">>>>>>>> %d" + 8 - (m->cont_level & 7),
57 m->offset);
58
59 if (m->flag & INDIR) {
60 (void) fprintf(stderr, "(%s,",
61 /* Note: type is unsigned */
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62 (m->in_type < file_nnames) ?
63 file_names[m->in_type] : "*bad*");
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64 if (m->in_op & FILE_OPINVERSE)
65 (void) fputc('~', stderr);
66 (void) fprintf(stderr, "%c%d),",
67 ((m->in_op&0x7F) < SZOF(optyp)) ?
68 optyp[m->in_op&0x7F] : '?',
69 m->in_offset);
70 }
71 (void) fprintf(stderr, " %s%s", (m->flag & UNSIGNED) ? "u" : "",
72 /* Note: type is unsigned */
9b22a626 73 (m->type < file_nnames) ? file_names[m->type] : "*bad*");
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74 if (m->mask_op & FILE_OPINVERSE)
75 (void) fputc('~', stderr);
76 if (m->mask) {
77 if ((m->mask_op & 0x7F) < SZOF(optyp))
78 fputc(optyp[m->mask_op&0x7F], stderr);
79 else
80 fputc('?', stderr);
9b22a626 81 if (FILE_STRING != m->type || FILE_PSTRING != m->type)
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82 (void) fprintf(stderr, "%.8llx",
83 (unsigned long long)m->mask);
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84 else {
85 if (m->mask & STRING_IGNORE_LOWERCASE)
86 (void) fputc(CHAR_IGNORE_LOWERCASE, stderr);
87 if (m->mask & STRING_COMPACT_BLANK)
88 (void) fputc(CHAR_COMPACT_BLANK, stderr);
89 if (m->mask & STRING_COMPACT_OPTIONAL_BLANK)
90 (void) fputc(CHAR_COMPACT_OPTIONAL_BLANK,
91 stderr);
92 }
93 }
94
95 (void) fprintf(stderr, ",%c", m->reln);
96
97 if (m->reln != 'x') {
98 switch (m->type) {
99 case FILE_BYTE:
100 case FILE_SHORT:
101 case FILE_LONG:
102 case FILE_LESHORT:
103 case FILE_LELONG:
9b22a626 104 case FILE_MELONG:
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105 case FILE_BESHORT:
106 case FILE_BELONG:
107 (void) fprintf(stderr, "%d", m->value.l);
108 break;
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109 case FILE_BEQUAD:
110 case FILE_LEQUAD:
111 case FILE_QUAD:
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112 (void) fprintf(stderr, "%lld",
113 (unsigned long long)m->value.q);
9b22a626 114 break;
ab0b56cc 115 case FILE_PSTRING:
9b22a626 116 case FILE_STRING:
ab0b56cc 117 case FILE_REGEX:
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118 case FILE_BESTRING16:
119 case FILE_LESTRING16:
120 case FILE_SEARCH:
121 file_showstr(stderr, m->value.s, (size_t)m->vallen);
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122 break;
123 case FILE_DATE:
124 case FILE_LEDATE:
125 case FILE_BEDATE:
9b22a626 126 case FILE_MEDATE:
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127 (void)fprintf(stderr, "%s,",
128 file_fmttime(m->value.l, 1));
129 break;
130 case FILE_LDATE:
131 case FILE_LELDATE:
132 case FILE_BELDATE:
9b22a626 133 case FILE_MELDATE:
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134 (void)fprintf(stderr, "%s,",
135 file_fmttime(m->value.l, 0));
136 break;
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137 case FILE_QDATE:
138 case FILE_LEQDATE:
139 case FILE_BEQDATE:
140 (void)fprintf(stderr, "%s,",
141 file_fmttime((uint32_t)m->value.q, 1));
142 break;
143 case FILE_QLDATE:
144 case FILE_LEQLDATE:
145 case FILE_BEQLDATE:
146 (void)fprintf(stderr, "%s,",
147 file_fmttime((uint32_t)m->value.q, 0));
148 break;
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149 default:
150 (void) fputs("*bad*", stderr);
151 break;
152 }
153 }
154 (void) fprintf(stderr, ",\"%s\"]\n", m->desc);
155}
156#endif
157
158/*VARARGS*/
159protected void
160file_magwarn(struct magic_set *ms, const char *f, ...)
161{
162 va_list va;
163 va_start(va, f);
164
165 /* cuz we use stdout for most, stderr here */
166 (void) fflush(stdout);
167
168 (void) fprintf(stderr, "%s, %lu: Warning ", ms->file,
169 (unsigned long)ms->line);
170 (void) vfprintf(stderr, f, va);
171 va_end(va);
172 fputc('\n', stderr);
173}
174
2be182fc 175protected const char *
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176file_fmttime(uint32_t v, int local)
177{
178 char *pp, *rt;
179 time_t t = (time_t)v;
180 struct tm *tm;
181
182 if (local) {
183 pp = ctime(&t);
184 } else {
185#ifndef HAVE_DAYLIGHT
186 private int daylight = 0;
187#ifdef HAVE_TM_ISDST
188 private time_t now = (time_t)0;
189
190 if (now == (time_t)0) {
191 struct tm *tm1;
192 (void)time(&now);
193 tm1 = localtime(&now);
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194 if (tm1 == NULL)
195 return "*Invalid time*";
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196 daylight = tm1->tm_isdst;
197 }
198#endif /* HAVE_TM_ISDST */
199#endif /* HAVE_DAYLIGHT */
200 if (daylight)
201 t += 3600;
202 tm = gmtime(&t);
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203 if (tm == NULL)
204 return "*Invalid time*";
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205 pp = asctime(tm);
206 }
207
208 if ((rt = strchr(pp, '\n')) != NULL)
209 *rt = '\0';
210 return pp;
211}