external/bsd/file/dist/src/print.c

   1 /*      $NetBSD$        */
   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 1.66 2009/02/03 20:27:51 christos Exp $")
  39 #else
  40 __RCSID("$NetBSD$");
  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 #ifndef COMPILE_ONLY
  55 protected void
  56 file_mdump(struct magic *m)
  57 {
  58         private const char optyp[] = { FILE_OPS };
  59
  60         (void) fprintf(stderr, "[%u", m->lineno);
  61         (void) fprintf(stderr, ">>>>>>>> %u" + 8 - (m->cont_level & 7),
  62                        m->offset);
  63
  64         if (m->flag & INDIR) {
  65                 (void) fprintf(stderr, "(%s,",
  66                                /* Note: type is unsigned */
  67                                (m->in_type < file_nnames) ?
  68                                         file_names[m->in_type] : "*bad*");
  69                 if (m->in_op & FILE_OPINVERSE)
  70                         (void) fputc('~', stderr);
  71                 (void) fprintf(stderr, "%c%u),",
  72                                ((size_t)(m->in_op & FILE_OPS_MASK) <
  73                                SZOF(optyp)) ?
  74                                         optyp[m->in_op & FILE_OPS_MASK] : '?',
  75                                 m->in_offset);
  76         }
  77         (void) fprintf(stderr, " %s%s", (m->flag & UNSIGNED) ? "u" : "",
  78                        /* Note: type is unsigned */
  79                        (m->type < file_nnames) ? file_names[m->type] : "*bad*");
  80         if (m->mask_op & FILE_OPINVERSE)
  81                 (void) fputc('~', stderr);
  82
  83         if (IS_STRING(m->type)) {
  84                 if (m->str_flags) {
  85                         (void) fputc('/', stderr);
  86                         if (m->str_flags & STRING_COMPACT_BLANK)
  87                                 (void) fputc(CHAR_COMPACT_BLANK, stderr);
  88                         if (m->str_flags & STRING_COMPACT_OPTIONAL_BLANK)
  89                                 (void) fputc(CHAR_COMPACT_OPTIONAL_BLANK,
  90                                     stderr);
  91                         if (m->str_flags & STRING_IGNORE_LOWERCASE)
  92                                 (void) fputc(CHAR_IGNORE_LOWERCASE, stderr);
  93                         if (m->str_flags & STRING_IGNORE_UPPERCASE)
  94                                 (void) fputc(CHAR_IGNORE_UPPERCASE, stderr);
  95                         if (m->str_flags & REGEX_OFFSET_START)
  96                                 (void) fputc(CHAR_REGEX_OFFSET_START, stderr);
  97                 }
  98                 if (m->str_range)
  99                         (void) fprintf(stderr, "/%u", m->str_range);
 100         }
 101         else {
 102                 if ((size_t)(m->mask_op & FILE_OPS_MASK) < SZOF(optyp))
 103                         (void) fputc(optyp[m->mask_op & FILE_OPS_MASK], stderr);
 104                 else
 105                         (void) fputc('?', stderr);
 106
 107                 if (m->num_mask) {
 108                         (void) fprintf(stderr, "%.8llx",
 109                             (unsigned long long)m->num_mask);
 110                 }
 111         }
 112         (void) fprintf(stderr, ",%c", m->reln);
 113
 114         if (m->reln != 'x') {
 115                 switch (m->type) {
 116                 case FILE_BYTE:
 117                 case FILE_SHORT:
 118                 case FILE_LONG:
 119                 case FILE_LESHORT:
 120                 case FILE_LELONG:
 121                 case FILE_MELONG:
 122                 case FILE_BESHORT:
 123                 case FILE_BELONG:
 124                         (void) fprintf(stderr, "%d", m->value.l);
 125                         break;
 126                 case FILE_BEQUAD:
 127                 case FILE_LEQUAD:
 128                 case FILE_QUAD:
 129                         (void) fprintf(stderr, "%lld",
 130                             (unsigned long long)m->value.q);
 131                         break;
 132                 case FILE_PSTRING:
 133                 case FILE_STRING:
 134                 case FILE_REGEX:
 135                 case FILE_BESTRING16:
 136                 case FILE_LESTRING16:
 137                 case FILE_SEARCH:
 138                         file_showstr(stderr, m->value.s, (size_t)m->vallen);
 139                         break;
 140                 case FILE_DATE:
 141                 case FILE_LEDATE:
 142                 case FILE_BEDATE:
 143                 case FILE_MEDATE:
 144                         (void)fprintf(stderr, "%s,",
 145                             file_fmttime(m->value.l, 1));
 146                         break;
 147                 case FILE_LDATE:
 148                 case FILE_LELDATE:
 149                 case FILE_BELDATE:
 150                 case FILE_MELDATE:
 151                         (void)fprintf(stderr, "%s,",
 152                             file_fmttime(m->value.l, 0));
 153                         break;
 154                 case FILE_QDATE:
 155                 case FILE_LEQDATE:
 156                 case FILE_BEQDATE:
 157                         (void)fprintf(stderr, "%s,",
 158                             file_fmttime((uint32_t)m->value.q, 1));
 159                         break;
 160                 case FILE_QLDATE:
 161                 case FILE_LEQLDATE:
 162                 case FILE_BEQLDATE:
 163                         (void)fprintf(stderr, "%s,",
 164                             file_fmttime((uint32_t)m->value.q, 0));
 165                         break;
 166                 case FILE_FLOAT:
 167                 case FILE_BEFLOAT:
 168                 case FILE_LEFLOAT:
 169                         (void) fprintf(stderr, "%G", m->value.f);
 170                         break;
 171                 case FILE_DOUBLE:
 172                 case FILE_BEDOUBLE:
 173                 case FILE_LEDOUBLE:
 174                         (void) fprintf(stderr, "%G", m->value.d);
 175                         break;
 176                 case FILE_DEFAULT:
 177                         /* XXX - do anything here? */
 178                         break;
 179                 default:
 180                         (void) fputs("*bad*", stderr);
 181                         break;
 182                 }
 183         }
 184         (void) fprintf(stderr, ",\"%s\"]\n", m->desc);
 185 }
 186 #endif
 187
 188 /*VARARGS*/
 189 protected void
 190 file_magwarn(struct magic_set *ms, const char *f, ...)
 191 {
 192         va_list va;
 193
 194         /* cuz we use stdout for most, stderr here */
 195         (void) fflush(stdout);
 196
 197         if (ms->file)
 198                 (void) fprintf(stderr, "%s, %lu: ", ms->file,
 199                     (unsigned long)ms->line);
 200         (void) fprintf(stderr, "Warning: ");
 201         va_start(va, f);
 202         (void) vfprintf(stderr, f, va);
 203         va_end(va);
 204         (void) fputc('\n', stderr);
 205 }
 206
 207 protected const char *
 208 file_fmttime(uint32_t v, int local)
 209 {
 210         char *pp;
 211         time_t t = (time_t)v;
 212         struct tm *tm;
 213
 214         if (local) {
 215                 pp = ctime(&t);
 216         } else {
 217 #ifndef HAVE_DAYLIGHT
 218                 private int daylight = 0;
 219 #ifdef HAVE_TM_ISDST
 220                 private time_t now = (time_t)0;
 221
 222                 if (now == (time_t)0) {
 223                         struct tm *tm1;
 224                         (void)time(&now);
 225                         tm1 = localtime(&now);
 226                         if (tm1 == NULL)
 227                                 return "*Invalid time*";
 228                         daylight = tm1->tm_isdst;
 229                 }
 230 #endif /* HAVE_TM_ISDST */
 231 #endif /* HAVE_DAYLIGHT */
 232                 if (daylight)
 233                         t += 3600;
 234                 tm = gmtime(&t);
 235                 if (tm == NULL)
 236                         return "*Invalid time*";
 237                 pp = asctime(tm);
 238         }
 239
 240         pp[strcspn(pp, "\n")] = '\0';
 241         return pp;
 242 }