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 #include "php.h"
32
33 #include "file.h"
34
35 #ifndef lint
36 FILE_RCSID("@(#)$File: print.c,v 1.88 2020/05/09 18:57:15 christos Exp $")
37 #endif /* lint */
38
39 #include <string.h>
40 #include <stdarg.h>
41 #include <stdlib.h>
42 #ifdef HAVE_UNISTD_H
43 #include <unistd.h>
44 #endif
45 #include <time.h>
46
47 #include "cdf.h"
48
49 #ifndef COMPILE_ONLY
50 protected void
file_mdump(struct magic * m)51 file_mdump(struct magic *m)
52 {
53 static const char optyp[] = { FILE_OPS };
54 char tbuf[256];
55
56 (void) fprintf(stderr, "%u: %.*s %u", m->lineno,
57 (m->cont_level & 7) + 1, ">>>>>>>>", m->offset);
58
59 if (m->flag & INDIR) {
60 (void) fprintf(stderr, "(%s,",
61 /* Note: type is unsigned */
62 (m->in_type < file_nnames) ? file_names[m->in_type] :
63 "*bad in_type*");
64 if (m->in_op & FILE_OPINVERSE)
65 (void) fputc('~', stderr);
66 (void) fprintf(stderr, "%c%u),",
67 (CAST(size_t, m->in_op & FILE_OPS_MASK) <
68 __arraycount(optyp)) ?
69 optyp[m->in_op & FILE_OPS_MASK] : '?', m->in_offset);
70 }
71 (void) fprintf(stderr, " %s%s", (m->flag & UNSIGNED) ? "u" : "",
72 /* Note: type is unsigned */
73 (m->type < file_nnames) ? file_names[m->type] : "*bad type");
74 if (m->mask_op & FILE_OPINVERSE)
75 (void) fputc('~', stderr);
76
77 if (IS_LIBMAGIC_STRING(m->type)) {
78 if (m->str_flags) {
79 (void) fputc('/', stderr);
80 if (m->str_flags & STRING_COMPACT_WHITESPACE)
81 (void) fputc(CHAR_COMPACT_WHITESPACE, stderr);
82 if (m->str_flags & STRING_COMPACT_OPTIONAL_WHITESPACE)
83 (void) fputc(CHAR_COMPACT_OPTIONAL_WHITESPACE,
84 stderr);
85 if (m->str_flags & STRING_IGNORE_LOWERCASE)
86 (void) fputc(CHAR_IGNORE_LOWERCASE, stderr);
87 if (m->str_flags & STRING_IGNORE_UPPERCASE)
88 (void) fputc(CHAR_IGNORE_UPPERCASE, stderr);
89 if (m->str_flags & REGEX_OFFSET_START)
90 (void) fputc(CHAR_REGEX_OFFSET_START, stderr);
91 if (m->str_flags & STRING_TEXTTEST)
92 (void) fputc(CHAR_TEXTTEST, stderr);
93 if (m->str_flags & STRING_BINTEST)
94 (void) fputc(CHAR_BINTEST, stderr);
95 if (m->str_flags & PSTRING_1_BE)
96 (void) fputc(CHAR_PSTRING_1_BE, stderr);
97 if (m->str_flags & PSTRING_2_BE)
98 (void) fputc(CHAR_PSTRING_2_BE, stderr);
99 if (m->str_flags & PSTRING_2_LE)
100 (void) fputc(CHAR_PSTRING_2_LE, stderr);
101 if (m->str_flags & PSTRING_4_BE)
102 (void) fputc(CHAR_PSTRING_4_BE, stderr);
103 if (m->str_flags & PSTRING_4_LE)
104 (void) fputc(CHAR_PSTRING_4_LE, stderr);
105 if (m->str_flags & PSTRING_LENGTH_INCLUDES_ITSELF)
106 (void) fputc(
107 CHAR_PSTRING_LENGTH_INCLUDES_ITSELF,
108 stderr);
109 }
110 if (m->str_range)
111 (void) fprintf(stderr, "/%u", m->str_range);
112 }
113 else {
114 if (CAST(size_t, m->mask_op & FILE_OPS_MASK) <
115 __arraycount(optyp))
116 (void) fputc(optyp[m->mask_op & FILE_OPS_MASK], stderr);
117 else
118 (void) fputc('?', stderr);
119
120 if (m->num_mask) {
121 (void) fprintf(stderr, "%.8llx",
122 CAST(unsigned long long, m->num_mask));
123 }
124 }
125 (void) fprintf(stderr, ",%c", m->reln);
126
127 if (m->reln != 'x') {
128 switch (m->type) {
129 case FILE_BYTE:
130 case FILE_SHORT:
131 case FILE_LONG:
132 case FILE_LESHORT:
133 case FILE_LELONG:
134 case FILE_MELONG:
135 case FILE_BESHORT:
136 case FILE_BELONG:
137 case FILE_INDIRECT:
138 (void) fprintf(stderr, "%d", m->value.l);
139 break;
140 case FILE_BEQUAD:
141 case FILE_LEQUAD:
142 case FILE_QUAD:
143 case FILE_OFFSET:
144 (void) fprintf(stderr, "%" INT64_T_FORMAT "d",
145 CAST(long long, m->value.q));
146 break;
147 case FILE_PSTRING:
148 case FILE_STRING:
149 case FILE_REGEX:
150 case FILE_BESTRING16:
151 case FILE_LESTRING16:
152 case FILE_SEARCH:
153 file_showstr(stderr, m->value.s,
154 CAST(size_t, m->vallen));
155 break;
156 case FILE_DATE:
157 case FILE_LEDATE:
158 case FILE_BEDATE:
159 case FILE_MEDATE:
160 (void)fprintf(stderr, "%s,",
161 file_fmttime(tbuf, sizeof(tbuf), m->value.l, 0));
162 break;
163 case FILE_LDATE:
164 case FILE_LELDATE:
165 case FILE_BELDATE:
166 case FILE_MELDATE:
167 (void)fprintf(stderr, "%s,",
168 file_fmttime(tbuf, sizeof(tbuf), m->value.l,
169 FILE_T_LOCAL));
170 break;
171 case FILE_QDATE:
172 case FILE_LEQDATE:
173 case FILE_BEQDATE:
174 (void)fprintf(stderr, "%s,",
175 file_fmttime(tbuf, sizeof(tbuf), m->value.q, 0));
176 break;
177 case FILE_QLDATE:
178 case FILE_LEQLDATE:
179 case FILE_BEQLDATE:
180 (void)fprintf(stderr, "%s,",
181 file_fmttime(tbuf, sizeof(tbuf), m->value.q,
182 FILE_T_LOCAL));
183 break;
184 case FILE_QWDATE:
185 case FILE_LEQWDATE:
186 case FILE_BEQWDATE:
187 (void)fprintf(stderr, "%s,",
188 file_fmttime(tbuf, sizeof(tbuf), m->value.q,
189 FILE_T_WINDOWS));
190 break;
191 case FILE_FLOAT:
192 case FILE_BEFLOAT:
193 case FILE_LEFLOAT:
194 (void) fprintf(stderr, "%G", m->value.f);
195 break;
196 case FILE_DOUBLE:
197 case FILE_BEDOUBLE:
198 case FILE_LEDOUBLE:
199 (void) fprintf(stderr, "%G", m->value.d);
200 break;
201 case FILE_DEFAULT:
202 /* XXX - do anything here? */
203 break;
204 case FILE_USE:
205 case FILE_NAME:
206 case FILE_DER:
207 (void) fprintf(stderr, "'%s'", m->value.s);
208 break;
209 case FILE_GUID:
210 (void) file_print_guid(tbuf, sizeof(tbuf),
211 m->value.guid);
212 (void) fprintf(stderr, "%s", tbuf);
213 break;
214
215 default:
216 (void) fprintf(stderr, "*bad type %d*", m->type);
217 break;
218 }
219 }
220 (void) fprintf(stderr, ",\"%s\"]\n", m->desc);
221 }
222 #endif
223
224 /*VARARGS*/
225 protected void
file_magwarn(struct magic_set * ms,const char * f,...)226 file_magwarn(struct magic_set *ms, const char *f, ...)
227 {
228 va_list va;
229 char *expanded_format = NULL;
230 int expanded_len;
231
232 va_start(va, f);
233 expanded_len = vasprintf(&expanded_format, f, va);
234 va_end(va);
235
236 if (expanded_len >= 0 && expanded_format) {
237 php_error_docref(NULL, E_WARNING, "%s", expanded_format);
238
239 free(expanded_format);
240 }
241 }
242
243 protected const char *
file_fmttime(char * buf,size_t bsize,uint64_t v,int flags)244 file_fmttime(char *buf, size_t bsize, uint64_t v, int flags)
245 {
246 char *pp;
247 time_t t;
248 struct tm *tm, tmz;
249
250 if (flags & FILE_T_WINDOWS) {
251 struct timespec ts;
252 cdf_timestamp_to_timespec(&ts, CAST(cdf_timestamp_t, v));
253 t = ts.tv_sec;
254 } else {
255 // XXX: perhaps detect and print something if overflow
256 // on 32 bit time_t?
257 t = CAST(time_t, v);
258 }
259
260 if (flags & FILE_T_LOCAL) {
261 tm = php_localtime_r(&t, &tmz);
262 } else {
263 tm = php_gmtime_r(&t, &tmz);
264 }
265 if (tm == NULL)
266 goto out;
267 pp = php_asctime_r(tm, buf);
268
269 if (pp == NULL)
270 goto out;
271 pp[strcspn(pp, "\n")] = '\0';
272 return pp;
273 out:
274 strlcpy(buf, "*Invalid time*", bsize);
275 return buf;
276 }
277