1 /* $NetBSD: print.c,v 1.10 2017/02/10 18:06:59 christos Exp $ */ 2 3 /* 4 * Copyright (c) Ian F. Darwin 1986-1995. 5 * Software written by Ian F. Darwin and others; 6 * maintained 1995-present by Christos Zoulas and others. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 /* 31 * print.c - debugging printout routines 32 */ 33 34 #include "file.h" 35 36 #ifndef lint 37 #if 0 38 FILE_RCSID("@(#)$File: print.c,v 1.81 2016/01/19 15:09:03 christos Exp $") 39 #else 40 __RCSID("$NetBSD: print.c,v 1.10 2017/02/10 18:06:59 christos Exp $"); 41 #endif 42 #endif /* lint */ 43 44 #include <string.h> 45 #include <stdarg.h> 46 #include <stdlib.h> 47 #ifdef HAVE_UNISTD_H 48 #include <unistd.h> 49 #endif 50 #include <time.h> 51 52 #define SZOF(a) (sizeof(a) / sizeof(a[0])) 53 54 #include "cdf.h" 55 56 #ifndef COMPILE_ONLY 57 protected void 58 file_mdump(struct magic *m) 59 { 60 static const char optyp[] = { FILE_OPS }; 61 char tbuf[26]; 62 63 (void) fprintf(stderr, "%u: %.*s %u", m->lineno, 64 (m->cont_level & 7) + 1, ">>>>>>>>", m->offset); 65 66 if (m->flag & INDIR) { 67 (void) fprintf(stderr, "(%s,", 68 /* Note: type is unsigned */ 69 (m->in_type < file_nnames) ? file_names[m->in_type] : 70 "*bad in_type*"); 71 if (m->in_op & FILE_OPINVERSE) 72 (void) fputc('~', stderr); 73 (void) fprintf(stderr, "%c%u),", 74 ((size_t)(m->in_op & FILE_OPS_MASK) < 75 SZOF(optyp)) ? optyp[m->in_op & FILE_OPS_MASK] : '?', 76 m->in_offset); 77 } 78 (void) fprintf(stderr, " %s%s", (m->flag & UNSIGNED) ? "u" : "", 79 /* Note: type is unsigned */ 80 (m->type < file_nnames) ? file_names[m->type] : "*bad type"); 81 if (m->mask_op & FILE_OPINVERSE) 82 (void) fputc('~', stderr); 83 84 if (IS_STRING(m->type)) { 85 if (m->str_flags) { 86 (void) fputc('/', stderr); 87 if (m->str_flags & STRING_COMPACT_WHITESPACE) 88 (void) fputc(CHAR_COMPACT_WHITESPACE, stderr); 89 if (m->str_flags & STRING_COMPACT_OPTIONAL_WHITESPACE) 90 (void) fputc(CHAR_COMPACT_OPTIONAL_WHITESPACE, 91 stderr); 92 if (m->str_flags & STRING_IGNORE_LOWERCASE) 93 (void) fputc(CHAR_IGNORE_LOWERCASE, stderr); 94 if (m->str_flags & STRING_IGNORE_UPPERCASE) 95 (void) fputc(CHAR_IGNORE_UPPERCASE, stderr); 96 if (m->str_flags & REGEX_OFFSET_START) 97 (void) fputc(CHAR_REGEX_OFFSET_START, stderr); 98 if (m->str_flags & STRING_TEXTTEST) 99 (void) fputc(CHAR_TEXTTEST, stderr); 100 if (m->str_flags & STRING_BINTEST) 101 (void) fputc(CHAR_BINTEST, stderr); 102 if (m->str_flags & PSTRING_1_BE) 103 (void) fputc(CHAR_PSTRING_1_BE, stderr); 104 if (m->str_flags & PSTRING_2_BE) 105 (void) fputc(CHAR_PSTRING_2_BE, stderr); 106 if (m->str_flags & PSTRING_2_LE) 107 (void) fputc(CHAR_PSTRING_2_LE, stderr); 108 if (m->str_flags & PSTRING_4_BE) 109 (void) fputc(CHAR_PSTRING_4_BE, stderr); 110 if (m->str_flags & PSTRING_4_LE) 111 (void) fputc(CHAR_PSTRING_4_LE, stderr); 112 if (m->str_flags & PSTRING_LENGTH_INCLUDES_ITSELF) 113 (void) fputc( 114 CHAR_PSTRING_LENGTH_INCLUDES_ITSELF, 115 stderr); 116 } 117 if (m->str_range) 118 (void) fprintf(stderr, "/%u", m->str_range); 119 } 120 else { 121 if ((size_t)(m->mask_op & FILE_OPS_MASK) < SZOF(optyp)) 122 (void) fputc(optyp[m->mask_op & FILE_OPS_MASK], stderr); 123 else 124 (void) fputc('?', stderr); 125 126 if (m->num_mask) { 127 (void) fprintf(stderr, "%.8llx", 128 (unsigned long long)m->num_mask); 129 } 130 } 131 (void) fprintf(stderr, ",%c", m->reln); 132 133 if (m->reln != 'x') { 134 switch (m->type) { 135 case FILE_BYTE: 136 case FILE_SHORT: 137 case FILE_LONG: 138 case FILE_LESHORT: 139 case FILE_LELONG: 140 case FILE_MELONG: 141 case FILE_BESHORT: 142 case FILE_BELONG: 143 case FILE_INDIRECT: 144 (void) fprintf(stderr, "%d", m->value.l); 145 break; 146 case FILE_BEQUAD: 147 case FILE_LEQUAD: 148 case FILE_QUAD: 149 (void) fprintf(stderr, "%" INT64_T_FORMAT "d", 150 (unsigned long long)m->value.q); 151 break; 152 case FILE_PSTRING: 153 case FILE_STRING: 154 case FILE_REGEX: 155 case FILE_BESTRING16: 156 case FILE_LESTRING16: 157 case FILE_SEARCH: 158 file_showstr(stderr, m->value.s, (size_t)m->vallen); 159 break; 160 case FILE_DATE: 161 case FILE_LEDATE: 162 case FILE_BEDATE: 163 case FILE_MEDATE: 164 (void)fprintf(stderr, "%s,", 165 file_fmttime(m->value.l, 0, tbuf)); 166 break; 167 case FILE_LDATE: 168 case FILE_LELDATE: 169 case FILE_BELDATE: 170 case FILE_MELDATE: 171 (void)fprintf(stderr, "%s,", 172 file_fmttime(m->value.l, FILE_T_LOCAL, tbuf)); 173 break; 174 case FILE_QDATE: 175 case FILE_LEQDATE: 176 case FILE_BEQDATE: 177 (void)fprintf(stderr, "%s,", 178 file_fmttime(m->value.q, 0, tbuf)); 179 break; 180 case FILE_QLDATE: 181 case FILE_LEQLDATE: 182 case FILE_BEQLDATE: 183 (void)fprintf(stderr, "%s,", 184 file_fmttime(m->value.q, FILE_T_LOCAL, tbuf)); 185 break; 186 case FILE_QWDATE: 187 case FILE_LEQWDATE: 188 case FILE_BEQWDATE: 189 (void)fprintf(stderr, "%s,", 190 file_fmttime(m->value.q, FILE_T_WINDOWS, tbuf)); 191 break; 192 case FILE_FLOAT: 193 case FILE_BEFLOAT: 194 case FILE_LEFLOAT: 195 (void) fprintf(stderr, "%G", m->value.f); 196 break; 197 case FILE_DOUBLE: 198 case FILE_BEDOUBLE: 199 case FILE_LEDOUBLE: 200 (void) fprintf(stderr, "%G", m->value.d); 201 break; 202 case FILE_DEFAULT: 203 /* XXX - do anything here? */ 204 break; 205 case FILE_USE: 206 case FILE_NAME: 207 case FILE_DER: 208 (void) fprintf(stderr, "'%s'", m->value.s); 209 break; 210 default: 211 (void) fprintf(stderr, "*bad type %d*", m->type); 212 break; 213 } 214 } 215 (void) fprintf(stderr, ",\"%s\"]\n", m->desc); 216 } 217 #endif 218 219 /*VARARGS*/ 220 protected void 221 file_magwarn(struct magic_set *ms, const char *f, ...) 222 { 223 va_list va; 224 225 /* cuz we use stdout for most, stderr here */ 226 (void) fflush(stdout); 227 228 if (ms->file) 229 (void) fprintf(stderr, "%s, %lu: ", ms->file, 230 (unsigned long)ms->line); 231 (void) fprintf(stderr, "Warning: "); 232 va_start(va, f); 233 (void) vfprintf(stderr, f, va); 234 va_end(va); 235 (void) fputc('\n', stderr); 236 } 237 238 protected const char * 239 file_fmttime(uint64_t v, int flags, char *buf) 240 { 241 char *pp; 242 time_t t; 243 struct tm *tm, tmz; 244 245 if (flags & FILE_T_WINDOWS) { 246 struct timespec ts; 247 cdf_timestamp_to_timespec(&ts, CAST(cdf_timestamp_t, v)); 248 t = ts.tv_sec; 249 } else { 250 // XXX: perhaps detect and print something if overflow 251 // on 32 bit time_t? 252 t = (time_t)v; 253 } 254 255 if (flags & FILE_T_LOCAL) { 256 tm = localtime_r(&t, &tmz); 257 } else { 258 tm = gmtime_r(&t, &tmz); 259 } 260 if (tm == NULL) 261 goto out; 262 pp = asctime_r(tm, buf); 263 264 if (pp == NULL) 265 goto out; 266 pp[strcspn(pp, "\n")] = '\0'; 267 return pp; 268 out: 269 return strcpy(buf, "*Invalid time*"); 270 } 271