print.c revision 298920
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 34#ifndef lint 35FILE_RCSID("@(#)$File: print.c,v 1.81 2016/01/19 15:09:03 christos Exp $") 36#endif /* lint */ 37 38#include <string.h> 39#include <stdarg.h> 40#include <stdlib.h> 41#ifdef HAVE_UNISTD_H 42#include <unistd.h> 43#endif 44#include <time.h> 45 46#define SZOF(a) (sizeof(a) / sizeof(a[0])) 47 48#include "cdf.h" 49 50#ifndef COMPILE_ONLY 51protected void 52file_mdump(struct magic *m) 53{ 54 static const char optyp[] = { FILE_OPS }; 55 char tbuf[26]; 56 57 (void) fprintf(stderr, "%u: %.*s %u", m->lineno, 58 (m->cont_level & 7) + 1, ">>>>>>>>", m->offset); 59 60 if (m->flag & INDIR) { 61 (void) fprintf(stderr, "(%s,", 62 /* Note: type is unsigned */ 63 (m->in_type < file_nnames) ? file_names[m->in_type] : 64 "*bad in_type*"); 65 if (m->in_op & FILE_OPINVERSE) 66 (void) fputc('~', stderr); 67 (void) fprintf(stderr, "%c%u),", 68 ((size_t)(m->in_op & FILE_OPS_MASK) < 69 SZOF(optyp)) ? optyp[m->in_op & FILE_OPS_MASK] : '?', 70 m->in_offset); 71 } 72 (void) fprintf(stderr, " %s%s", (m->flag & UNSIGNED) ? "u" : "", 73 /* Note: type is unsigned */ 74 (m->type < file_nnames) ? file_names[m->type] : "*bad type"); 75 if (m->mask_op & FILE_OPINVERSE) 76 (void) fputc('~', stderr); 77 78 if (IS_STRING(m->type)) { 79 if (m->str_flags) { 80 (void) fputc('/', stderr); 81 if (m->str_flags & STRING_COMPACT_WHITESPACE) 82 (void) fputc(CHAR_COMPACT_WHITESPACE, stderr); 83 if (m->str_flags & STRING_COMPACT_OPTIONAL_WHITESPACE) 84 (void) fputc(CHAR_COMPACT_OPTIONAL_WHITESPACE, 85 stderr); 86 if (m->str_flags & STRING_IGNORE_LOWERCASE) 87 (void) fputc(CHAR_IGNORE_LOWERCASE, stderr); 88 if (m->str_flags & STRING_IGNORE_UPPERCASE) 89 (void) fputc(CHAR_IGNORE_UPPERCASE, stderr); 90 if (m->str_flags & REGEX_OFFSET_START) 91 (void) fputc(CHAR_REGEX_OFFSET_START, stderr); 92 if (m->str_flags & STRING_TEXTTEST) 93 (void) fputc(CHAR_TEXTTEST, stderr); 94 if (m->str_flags & STRING_BINTEST) 95 (void) fputc(CHAR_BINTEST, stderr); 96 if (m->str_flags & PSTRING_1_BE) 97 (void) fputc(CHAR_PSTRING_1_BE, stderr); 98 if (m->str_flags & PSTRING_2_BE) 99 (void) fputc(CHAR_PSTRING_2_BE, stderr); 100 if (m->str_flags & PSTRING_2_LE) 101 (void) fputc(CHAR_PSTRING_2_LE, stderr); 102 if (m->str_flags & PSTRING_4_BE) 103 (void) fputc(CHAR_PSTRING_4_BE, stderr); 104 if (m->str_flags & PSTRING_4_LE) 105 (void) fputc(CHAR_PSTRING_4_LE, stderr); 106 if (m->str_flags & PSTRING_LENGTH_INCLUDES_ITSELF) 107 (void) fputc( 108 CHAR_PSTRING_LENGTH_INCLUDES_ITSELF, 109 stderr); 110 } 111 if (m->str_range) 112 (void) fprintf(stderr, "/%u", m->str_range); 113 } 114 else { 115 if ((size_t)(m->mask_op & FILE_OPS_MASK) < SZOF(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 (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 (void) fprintf(stderr, "%" INT64_T_FORMAT "d", 144 (unsigned long long)m->value.q); 145 break; 146 case FILE_PSTRING: 147 case FILE_STRING: 148 case FILE_REGEX: 149 case FILE_BESTRING16: 150 case FILE_LESTRING16: 151 case FILE_SEARCH: 152 file_showstr(stderr, m->value.s, (size_t)m->vallen); 153 break; 154 case FILE_DATE: 155 case FILE_LEDATE: 156 case FILE_BEDATE: 157 case FILE_MEDATE: 158 (void)fprintf(stderr, "%s,", 159 file_fmttime(m->value.l, 0, tbuf)); 160 break; 161 case FILE_LDATE: 162 case FILE_LELDATE: 163 case FILE_BELDATE: 164 case FILE_MELDATE: 165 (void)fprintf(stderr, "%s,", 166 file_fmttime(m->value.l, FILE_T_LOCAL, tbuf)); 167 break; 168 case FILE_QDATE: 169 case FILE_LEQDATE: 170 case FILE_BEQDATE: 171 (void)fprintf(stderr, "%s,", 172 file_fmttime(m->value.q, 0, tbuf)); 173 break; 174 case FILE_QLDATE: 175 case FILE_LEQLDATE: 176 case FILE_BEQLDATE: 177 (void)fprintf(stderr, "%s,", 178 file_fmttime(m->value.q, FILE_T_LOCAL, tbuf)); 179 break; 180 case FILE_QWDATE: 181 case FILE_LEQWDATE: 182 case FILE_BEQWDATE: 183 (void)fprintf(stderr, "%s,", 184 file_fmttime(m->value.q, FILE_T_WINDOWS, tbuf)); 185 break; 186 case FILE_FLOAT: 187 case FILE_BEFLOAT: 188 case FILE_LEFLOAT: 189 (void) fprintf(stderr, "%G", m->value.f); 190 break; 191 case FILE_DOUBLE: 192 case FILE_BEDOUBLE: 193 case FILE_LEDOUBLE: 194 (void) fprintf(stderr, "%G", m->value.d); 195 break; 196 case FILE_DEFAULT: 197 /* XXX - do anything here? */ 198 break; 199 case FILE_USE: 200 case FILE_NAME: 201 case FILE_DER: 202 (void) fprintf(stderr, "'%s'", m->value.s); 203 break; 204 default: 205 (void) fprintf(stderr, "*bad type %d*", m->type); 206 break; 207 } 208 } 209 (void) fprintf(stderr, ",\"%s\"]\n", m->desc); 210} 211#endif 212 213/*VARARGS*/ 214protected void 215file_magwarn(struct magic_set *ms, const char *f, ...) 216{ 217 va_list va; 218 219 /* cuz we use stdout for most, stderr here */ 220 (void) fflush(stdout); 221 222 if (ms->file) 223 (void) fprintf(stderr, "%s, %lu: ", ms->file, 224 (unsigned long)ms->line); 225 (void) fprintf(stderr, "Warning: "); 226 va_start(va, f); 227 (void) vfprintf(stderr, f, va); 228 va_end(va); 229 (void) fputc('\n', stderr); 230} 231 232protected const char * 233file_fmttime(uint64_t v, int flags, char *buf) 234{ 235 char *pp; 236 time_t t; 237 struct tm *tm, tmz; 238 239 if (flags & FILE_T_WINDOWS) { 240 struct timespec ts; 241 cdf_timestamp_to_timespec(&ts, v); 242 t = ts.tv_sec; 243 } else { 244 // XXX: perhaps detect and print something if overflow 245 // on 32 bit time_t? 246 t = (time_t)v; 247 } 248 249 if (flags & FILE_T_LOCAL) { 250 tm = localtime_r(&t, &tmz); 251 } else { 252 tm = gmtime_r(&t, &tmz); 253 } 254 if (tm == NULL) 255 goto out; 256 pp = asctime_r(tm, buf); 257 258 if (pp == NULL) 259 goto out; 260 pp[strcspn(pp, "\n")] = '\0'; 261 return pp; 262out: 263 return strcpy(buf, "*Invalid time*"); 264} 265