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-rw-r--r--src/print.c365
1 files changed, 365 insertions, 0 deletions
diff --git a/src/print.c b/src/print.c
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+++ b/src/print.c
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+/*
+ * Copyright (c) Ian F. Darwin 1986-1995.
+ * Software written by Ian F. Darwin and others;
+ * maintained 1995-present by Christos Zoulas and others.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice immediately at the beginning of the file, without modification,
+ * this list of conditions, and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/*
+ * print.c - debugging printout routines
+ */
+
+#include "file.h"
+
+#ifndef lint
+FILE_RCSID("@(#)$File: print.c,v 1.97 2022/12/26 17:31:14 christos Exp $")
+#endif /* lint */
+
+#include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <time.h>
+
+#include "cdf.h"
+
+#ifndef COMPILE_ONLY
+file_protected void
+file_mdump(struct magic *m)
+{
+ static const char optyp[] = { FILE_OPS };
+ char tbuf[256];
+
+ (void) fprintf(stderr, "%u: %.*s %d", m->lineno,
+ (m->cont_level & 7) + 1, ">>>>>>>>", m->offset);
+
+ if (m->flag & INDIR) {
+ (void) fprintf(stderr, "(%s,",
+ /* Note: type is unsigned */
+ (m->in_type < file_nnames) ? file_names[m->in_type] :
+ "*bad in_type*");
+ if (m->in_op & FILE_OPINVERSE)
+ (void) fputc('~', stderr);
+ (void) fprintf(stderr, "%c%d),",
+ (CAST(size_t, m->in_op & FILE_OPS_MASK) <
+ __arraycount(optyp)) ?
+ optyp[m->in_op & FILE_OPS_MASK] : '?', m->in_offset);
+ }
+ (void) fprintf(stderr, " %s%s", (m->flag & UNSIGNED) ? "u" : "",
+ /* Note: type is unsigned */
+ (m->type < file_nnames) ? file_names[m->type] : "*bad type");
+ if (m->mask_op & FILE_OPINVERSE)
+ (void) fputc('~', stderr);
+
+ if (IS_STRING(m->type)) {
+ if (m->str_flags) {
+ (void) fputc('/', stderr);
+ if (m->str_flags & STRING_COMPACT_WHITESPACE)
+ (void) fputc(CHAR_COMPACT_WHITESPACE, stderr);
+ if (m->str_flags & STRING_COMPACT_OPTIONAL_WHITESPACE)
+ (void) fputc(CHAR_COMPACT_OPTIONAL_WHITESPACE,
+ stderr);
+ if (m->str_flags & STRING_IGNORE_LOWERCASE)
+ (void) fputc(CHAR_IGNORE_LOWERCASE, stderr);
+ if (m->str_flags & STRING_IGNORE_UPPERCASE)
+ (void) fputc(CHAR_IGNORE_UPPERCASE, stderr);
+ if (m->str_flags & REGEX_OFFSET_START)
+ (void) fputc(CHAR_REGEX_OFFSET_START, stderr);
+ if (m->str_flags & STRING_TEXTTEST)
+ (void) fputc(CHAR_TEXTTEST, stderr);
+ if (m->str_flags & STRING_BINTEST)
+ (void) fputc(CHAR_BINTEST, stderr);
+ if (m->str_flags & PSTRING_1_BE)
+ (void) fputc(CHAR_PSTRING_1_BE, stderr);
+ if (m->str_flags & PSTRING_2_BE)
+ (void) fputc(CHAR_PSTRING_2_BE, stderr);
+ if (m->str_flags & PSTRING_2_LE)
+ (void) fputc(CHAR_PSTRING_2_LE, stderr);
+ if (m->str_flags & PSTRING_4_BE)
+ (void) fputc(CHAR_PSTRING_4_BE, stderr);
+ if (m->str_flags & PSTRING_4_LE)
+ (void) fputc(CHAR_PSTRING_4_LE, stderr);
+ if (m->str_flags & PSTRING_LENGTH_INCLUDES_ITSELF)
+ (void) fputc(
+ CHAR_PSTRING_LENGTH_INCLUDES_ITSELF,
+ stderr);
+ }
+ if (m->str_range)
+ (void) fprintf(stderr, "/%u", m->str_range);
+ }
+ else {
+ if (CAST(size_t, m->mask_op & FILE_OPS_MASK) <
+ __arraycount(optyp))
+ (void) fputc(optyp[m->mask_op & FILE_OPS_MASK], stderr);
+ else
+ (void) fputc('?', stderr);
+
+ if (m->num_mask) {
+ (void) fprintf(stderr, "%.8llx",
+ CAST(unsigned long long, m->num_mask));
+ }
+ }
+ (void) fprintf(stderr, ",%c", m->reln);
+
+ if (m->reln != 'x') {
+ switch (m->type) {
+ case FILE_BYTE:
+ case FILE_SHORT:
+ case FILE_LONG:
+ case FILE_LESHORT:
+ case FILE_LELONG:
+ case FILE_MELONG:
+ case FILE_BESHORT:
+ case FILE_BELONG:
+ case FILE_INDIRECT:
+ (void) fprintf(stderr, "%d", CAST(int32_t, m->value.l));
+ break;
+ case FILE_BEQUAD:
+ case FILE_LEQUAD:
+ case FILE_QUAD:
+ case FILE_OFFSET:
+ (void) fprintf(stderr, "%" INT64_T_FORMAT "d",
+ CAST(long long, m->value.q));
+ break;
+ case FILE_PSTRING:
+ case FILE_STRING:
+ case FILE_REGEX:
+ case FILE_BESTRING16:
+ case FILE_LESTRING16:
+ case FILE_SEARCH:
+ file_showstr(stderr, m->value.s,
+ CAST(size_t, m->vallen));
+ break;
+ case FILE_DATE:
+ case FILE_LEDATE:
+ case FILE_BEDATE:
+ case FILE_MEDATE:
+ (void)fprintf(stderr, "%s,",
+ file_fmtdatetime(tbuf, sizeof(tbuf), m->value.l, 0));
+ break;
+ case FILE_LDATE:
+ case FILE_LELDATE:
+ case FILE_BELDATE:
+ case FILE_MELDATE:
+ (void)fprintf(stderr, "%s,",
+ file_fmtdatetime(tbuf, sizeof(tbuf), m->value.l,
+ FILE_T_LOCAL));
+ break;
+ case FILE_QDATE:
+ case FILE_LEQDATE:
+ case FILE_BEQDATE:
+ (void)fprintf(stderr, "%s,",
+ file_fmtdatetime(tbuf, sizeof(tbuf), m->value.q, 0));
+ break;
+ case FILE_QLDATE:
+ case FILE_LEQLDATE:
+ case FILE_BEQLDATE:
+ (void)fprintf(stderr, "%s,",
+ file_fmtdatetime(tbuf, sizeof(tbuf), m->value.q,
+ FILE_T_LOCAL));
+ break;
+ case FILE_QWDATE:
+ case FILE_LEQWDATE:
+ case FILE_BEQWDATE:
+ (void)fprintf(stderr, "%s,",
+ file_fmtdatetime(tbuf, sizeof(tbuf), m->value.q,
+ FILE_T_WINDOWS));
+ break;
+ case FILE_FLOAT:
+ case FILE_BEFLOAT:
+ case FILE_LEFLOAT:
+ (void) fprintf(stderr, "%G", m->value.f);
+ break;
+ case FILE_DOUBLE:
+ case FILE_BEDOUBLE:
+ case FILE_LEDOUBLE:
+ (void) fprintf(stderr, "%G", m->value.d);
+ break;
+ case FILE_LEVARINT:
+ case FILE_BEVARINT:
+ (void)fprintf(stderr, "%s", file_fmtvarint(
+ tbuf, sizeof(tbuf), m->value.us, m->type));
+ break;
+ case FILE_MSDOSDATE:
+ case FILE_BEMSDOSDATE:
+ case FILE_LEMSDOSDATE:
+ (void)fprintf(stderr, "%s,",
+ file_fmtdate(tbuf, sizeof(tbuf), m->value.h));
+ break;
+ case FILE_MSDOSTIME:
+ case FILE_BEMSDOSTIME:
+ case FILE_LEMSDOSTIME:
+ (void)fprintf(stderr, "%s,",
+ file_fmttime(tbuf, sizeof(tbuf), m->value.h));
+ break;
+ case FILE_OCTAL:
+ (void)fprintf(stderr, "%s",
+ file_fmtnum(tbuf, sizeof(tbuf), m->value.s, 8));
+ break;
+ case FILE_DEFAULT:
+ /* XXX - do anything here? */
+ break;
+ case FILE_USE:
+ case FILE_NAME:
+ case FILE_DER:
+ (void) fprintf(stderr, "'%s'", m->value.s);
+ break;
+ case FILE_GUID:
+ (void) file_print_guid(tbuf, sizeof(tbuf),
+ m->value.guid);
+ (void) fprintf(stderr, "%s", tbuf);
+ break;
+
+ default:
+ (void) fprintf(stderr, "*bad type %d*", m->type);
+ break;
+ }
+ }
+ (void) fprintf(stderr, ",\"%s\"]\n", m->desc);
+}
+#endif
+
+/*VARARGS*/
+file_protected void
+file_magwarn(struct magic_set *ms, const char *f, ...)
+{
+ va_list va;
+
+ /* cuz we use stdout for most, stderr here */
+ (void) fflush(stdout);
+
+ if (ms && ms->file)
+ (void) fprintf(stderr, "%s, %lu: ", ms->file,
+ CAST(unsigned long, ms->line));
+ (void) fprintf(stderr, "Warning: ");
+ va_start(va, f);
+ (void) vfprintf(stderr, f, va);
+ va_end(va);
+ (void) fputc('\n', stderr);
+}
+
+file_protected const char *
+file_fmtvarint(char *buf, size_t blen, const unsigned char *us, int t)
+{
+ snprintf(buf, blen, "%jd", CAST(intmax_t,
+ file_varint2uintmax_t(us, t, NULL)));
+ return buf;
+}
+
+file_protected const char *
+file_fmtdatetime(char *buf, size_t bsize, uint64_t v, int flags)
+{
+ char *pp;
+ time_t t;
+ struct tm *tm, tmz;
+
+ if (flags & FILE_T_WINDOWS) {
+ struct timespec ts;
+ cdf_timestamp_to_timespec(&ts, CAST(cdf_timestamp_t, v));
+ t = ts.tv_sec;
+ } else {
+ // XXX: perhaps detect and print something if overflow
+ // on 32 bit time_t?
+ t = CAST(time_t, v);
+ }
+
+ if (flags & FILE_T_LOCAL) {
+ tm = localtime_r(&t, &tmz);
+ } else {
+ tm = gmtime_r(&t, &tmz);
+ }
+ if (tm == NULL)
+ goto out;
+ pp = asctime_r(tm, buf);
+
+ if (pp == NULL)
+ goto out;
+ pp[strcspn(pp, "\n")] = '\0';
+ return pp;
+out:
+ strlcpy(buf, "*Invalid datetime*", bsize);
+ return buf;
+}
+
+/*
+ * https://docs.microsoft.com/en-us/windows/win32/api/winbase/\
+ * nf-winbase-dosdatetimetofiletime?redirectedfrom=MSDN
+ */
+file_protected const char *
+file_fmtdate(char *buf, size_t bsize, uint16_t v)
+{
+ struct tm tm;
+
+ memset(&tm, 0, sizeof(tm));
+ tm.tm_mday = v & 0x1f;
+ tm.tm_mon = ((v >> 5) & 0xf) - 1;
+ tm.tm_year = (v >> 9) + 80;
+
+ if (strftime(buf, bsize, "%a, %b %d %Y", &tm) == 0)
+ goto out;
+
+ return buf;
+out:
+ strlcpy(buf, "*Invalid date*", bsize);
+ return buf;
+}
+
+file_protected const char *
+file_fmttime(char *buf, size_t bsize, uint16_t v)
+{
+ struct tm tm;
+
+ memset(&tm, 0, sizeof(tm));
+ tm.tm_sec = (v & 0x1f) * 2;
+ tm.tm_min = ((v >> 5) & 0x3f);
+ tm.tm_hour = (v >> 11);
+
+ if (strftime(buf, bsize, "%T", &tm) == 0)
+ goto out;
+
+ return buf;
+out:
+ strlcpy(buf, "*Invalid time*", bsize);
+ return buf;
+
+}
+
+file_protected const char *
+file_fmtnum(char *buf, size_t blen, const char *us, int base)
+{
+ char *endptr;
+ unsigned long long val;
+
+ errno = 0;
+ val = strtoull(us, &endptr, base);
+ if (*endptr || errno) {
+bad: strlcpy(buf, "*Invalid number*", blen);
+ return buf;
+ }
+
+ if (snprintf(buf, blen, "%llu", val) < 0)
+ goto bad;
+ return buf;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 18:13:37 +0000