contrib/file-4/src/print.c

   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
  44 FILE_RCSID("@(#)$Id: print.c,v 1.46 2004/11/13 08:11:39 christos Exp $")
  45 #endif  /* lint */
  46
  47 #define SZOF(a) (sizeof(a) / sizeof(a[0]))
  48
  49 #ifndef COMPILE_ONLY
  50 protected void
  51 file_mdump(struct magic *m)
  52 {
  53         private const char *typ[] = { "invalid", "byte", "short", "invalid",
  54                                      "long", "string", "date", "beshort",
  55                                      "belong", "bedate", "leshort", "lelong",
  56                                      "ledate", "pstring", "ldate", "beldate",
  57                                      "leldate", "regex" };
  58         private const char optyp[] = { '@', '&', '|', '^', '+', '-',
  59                                       '*', '/', '%' };
  60         (void) fputc('[', stderr);
  61         (void) fprintf(stderr, ">>>>>>>> %d" + 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 < SZOF(typ)) ?
  68                                         typ[m->in_type] : "*bad*");
  69                 if (m->in_op & FILE_OPINVERSE)
  70                         (void) fputc('~', stderr);
  71                 (void) fprintf(stderr, "%c%d),",
  72                                ((m->in_op&0x7F) < SZOF(optyp)) ?
  73                                         optyp[m->in_op&0x7F] : '?',
  74                                 m->in_offset);
  75         }
  76         (void) fprintf(stderr, " %s%s", (m->flag & UNSIGNED) ? "u" : "",
  77                        /* Note: type is unsigned */
  78                        (m->type < SZOF(typ)) ? typ[m->type] : "*bad*");
  79         if (m->mask_op & FILE_OPINVERSE)
  80                 (void) fputc('~', stderr);
  81         if (m->mask) {
  82                 if ((m->mask_op & 0x7F) < SZOF(optyp))
  83                         fputc(optyp[m->mask_op&0x7F], stderr);
  84                 else
  85                         fputc('?', stderr);
  86                 if(FILE_STRING != m->type || FILE_PSTRING != m->type)
  87                         (void) fprintf(stderr, "%.8x", m->mask);
  88                 else {
  89                         if (m->mask & STRING_IGNORE_LOWERCASE)
  90                                 (void) fputc(CHAR_IGNORE_LOWERCASE, stderr);
  91                         if (m->mask & STRING_COMPACT_BLANK)
  92                                 (void) fputc(CHAR_COMPACT_BLANK, stderr);
  93                         if (m->mask & STRING_COMPACT_OPTIONAL_BLANK)
  94                                 (void) fputc(CHAR_COMPACT_OPTIONAL_BLANK,
  95                                 stderr);
  96                 }
  97         }
  98
  99         (void) fprintf(stderr, ",%c", m->reln);
 100
 101         if (m->reln != 'x') {
 102                 switch (m->type) {
 103                 case FILE_BYTE:
 104                 case FILE_SHORT:
 105                 case FILE_LONG:
 106                 case FILE_LESHORT:
 107                 case FILE_LELONG:
 108                 case FILE_BESHORT:
 109                 case FILE_BELONG:
 110                         (void) fprintf(stderr, "%d", m->value.l);
 111                         break;
 112                 case FILE_STRING:
 113                 case FILE_PSTRING:
 114                 case FILE_REGEX:
 115                         file_showstr(stderr, m->value.s, ~0U);
 116                         break;
 117                 case FILE_DATE:
 118                 case FILE_LEDATE:
 119                 case FILE_BEDATE:
 120                         (void)fprintf(stderr, "%s,",
 121                             file_fmttime(m->value.l, 1));
 122                         break;
 123                 case FILE_LDATE:
 124                 case FILE_LELDATE:
 125                 case FILE_BELDATE:
 126                         (void)fprintf(stderr, "%s,",
 127                             file_fmttime(m->value.l, 0));
 128                         break;
 129                 default:
 130                         (void) fputs("*bad*", stderr);
 131                         break;
 132                 }
 133         }
 134         (void) fprintf(stderr, ",\"%s\"]\n", m->desc);
 135 }
 136 #endif
 137
 138 /*VARARGS*/
 139 protected void
 140 file_magwarn(struct magic_set *ms, const char *f, ...)
 141 {
 142         va_list va;
 143         va_start(va, f);
 144
 145         /* cuz we use stdout for most, stderr here */
 146         (void) fflush(stdout);
 147
 148         (void) fprintf(stderr, "%s, %lu: Warning ", ms->file,
 149             (unsigned long)ms->line);
 150         (void) vfprintf(stderr, f, va);
 151         va_end(va);
 152         fputc('\n', stderr);
 153 }
 154
 155 protected char *
 156 file_fmttime(uint32_t v, int local)
 157 {
 158         char *pp, *rt;
 159         time_t t = (time_t)v;
 160         struct tm *tm;
 161
 162         if (local) {
 163                 pp = ctime(&t);
 164         } else {
 165 #ifndef HAVE_DAYLIGHT
 166                 private int daylight = 0;
 167 #ifdef HAVE_TM_ISDST
 168                 private time_t now = (time_t)0;
 169
 170                 if (now == (time_t)0) {
 171                         struct tm *tm1;
 172                         (void)time(&now);
 173                         tm1 = localtime(&now);
 174                         daylight = tm1->tm_isdst;
 175                 }
 176 #endif /* HAVE_TM_ISDST */
 177 #endif /* HAVE_DAYLIGHT */
 178                 if (daylight)
 179                         t += 3600;
 180                 tm = gmtime(&t);
 181                 pp = asctime(tm);
 182         }
 183
 184         if ((rt = strchr(pp, '\n')) != NULL)
 185                 *rt = '\0';
 186         return pp;
 187 }