1 /* ------------------------------------------------------------------------ */
3 /* header.c -- header manipulate functions */
5 /* Modified Nobutaka Watazaki */
7 /* Original Y.Tagawa */
8 /* modified 1991.12.16 M.Oki */
9 /* Ver. 1.10 Symbolic Link added 1993.10.01 N.Watazaki */
10 /* Ver. 1.13b Symbolic Link Bug Fix 1994.08.22 N.Watazaki */
11 /* Ver. 1.14 Source All chagned 1995.01.14 N.Watazaki */
12 /* Ver. 1.14i bug fixed 2000.10.06 t.okamoto */
13 /* Ver. 1.14i Contributed UTF-8 convertion for Mac OS X */
14 /* 2002.06.29 Hiroto Sakai */
15 /* Ver. 1.14i autoconfiscated & rewritten 2003.02.23 Koji Arai */
16 /* ------------------------------------------------------------------------ */
19 #define DUMP_HEADER 1 /* for debugging */
21 #if !STRCHR_8BIT_CLEAN
22 /* should use 8 bit clean version */
25 #define strchr xstrchr
26 #define strrchr xstrrchr
30 #define GET_BYTE() (*get_ptr++ & 0xff)
33 static char *start_ptr;
34 #define setup_get(PTR) (start_ptr = get_ptr = (PTR))
35 #define get_byte() dump_get_byte()
36 #define skip_bytes(len) dump_skip_bytes(len)
38 #define setup_get(PTR) (get_ptr = (PTR))
39 #define get_byte() GET_BYTE()
40 #define skip_bytes(len) (get_ptr += (len))
42 #define put_ptr get_ptr
43 #define setup_put(PTR) (put_ptr = (PTR))
44 #define put_byte(c) (*put_ptr++ = (char)(c))
46 int optional_archive_kanji_code = NONE;
47 int optional_system_kanji_code = NONE;
48 char *optional_archive_delim = NULL;
49 char *optional_system_delim = NULL;
50 int optional_filename_case = NONE;
52 #ifdef MULTIBYTE_FILENAME
53 int default_system_kanji_code = MULTIBYTE_FILENAME;
55 int default_system_kanji_code = NONE;
65 while (len--) sum += *(unsigned char*)p++;
76 if (verbose_listing && verbose > 1)
77 printf("%02d %2d: ", get_ptr - start_ptr, 1);
79 if (verbose_listing && verbose > 1) {
81 printf("%d(0x%02x) '%c'\n", c, c, c);
83 printf("%d(0x%02x)\n", c, c);
93 if (verbose_listing && verbose > 1) {
94 printf("%02d %2d: ", get_ptr - start_ptr, len);
96 printf("0x%02x ", GET_BYTE());
97 printf("... ignored\n");
111 if (verbose_listing && verbose > 1)
112 printf("%02d %2d: ", get_ptr - start_ptr, 2);
118 if (verbose_listing && verbose > 1)
119 printf("%d(0x%04x)\n", w, w);
139 if (verbose_listing && verbose > 1)
140 printf("%02d %2d: ", get_ptr - start_ptr, 4);
146 l = (b3 << 24) + (b2 << 16) + (b1 << 8) + b0;
148 if (verbose_listing && verbose > 1)
149 printf("%ld(0x%08lx)\n", l, l);
167 uint64_t b0, b1, b2, b3, b4, b5, b6, b7;
171 if (verbose_listing && verbose > 1)
172 printf("%02d %2d: ", get_ptr - start_ptr, 4);
183 l = (b7 << 24) + (b6 << 16) + (b5 << 8) + b4;
185 l |= (b3 << 24) + (b2 << 16) + (b1 << 8) + b0;
187 if (verbose_listing && verbose > 1)
188 printf("%lld(%#016llx)\n", l, l);
194 put_longlongword(uint64_t v)
208 get_bytes(buf, len, size)
215 if (verbose_listing && verbose > 1)
216 printf("%02d %2d: \"", get_ptr - start_ptr, len);
218 for (i = 0; i < len; i++) {
219 if (i < size) buf[i] = get_ptr[i];
221 if (verbose_listing && verbose > 1) {
223 printf("%c", buf[i]);
225 printf("\\x%02x", (unsigned char)buf[i]);
229 if (verbose_listing && verbose > 1)
232 for (i = 0; i < len && i < size; i++)
246 for (i = 0; i < len; i++)
250 /* added by Koji Arai */
252 convert_filename(name, len, size,
254 from_delim, to_delim,
257 int len; /* length of name */
258 int size; /* size of name buffer */
259 int from_code, to_code, case_to;
260 char *from_delim, *to_delim;
264 #ifdef MULTIBYTE_FILENAME
265 char tmp[FILENAME_LENGTH];
266 int to_code_save = NONE;
268 if (from_code == CODE_CAP) {
269 len = cap_to_sjis(tmp, name, sizeof(tmp));
270 strncpy(name, tmp, size);
273 from_code = CODE_SJIS;
276 if (to_code == CODE_CAP) {
277 to_code_save = CODE_CAP;
281 if (from_code == CODE_SJIS && to_code == CODE_UTF8) {
282 for (i = 0; i < len; i++)
283 /* FIXME: provisionally fix for the Mac OS CoreFoundation */
284 if ((unsigned char)name[i] == LHA_PATHSEP) name[i] = '/';
285 sjis_to_utf8(tmp, name, sizeof(tmp));
286 strncpy(name, tmp, size);
289 for (i = 0; i < len; i++)
290 if (name[i] == '/') name[i] = LHA_PATHSEP;
291 from_code = CODE_UTF8;
293 else if (from_code == CODE_UTF8 && to_code == CODE_SJIS) {
294 for (i = 0; i < len; i++)
295 /* FIXME: provisionally fix for the Mac OS CoreFoundation */
296 if ((unsigned char)name[i] == LHA_PATHSEP) name[i] = '/';
297 utf8_to_sjis(tmp, name, sizeof(tmp));
298 strncpy(name, tmp, size);
301 for (i = 0; i < len; i++)
302 if (name[i] == '/') name[i] = LHA_PATHSEP;
303 from_code = CODE_SJIS;
307 /* special case: if `name' has small lettter, not convert case. */
308 if (from_code == CODE_SJIS && case_to == TO_LOWER) {
309 for (i = 0; i < len; i++) {
310 #ifdef MULTIBYTE_FILENAME
311 if (SJIS_FIRST_P(name[i]) && SJIS_SECOND_P(name[i+1]))
315 if (islower(name[i])) {
322 for (i = 0; i < len; i ++) {
323 #ifdef MULTIBYTE_FILENAME
324 if (from_code == CODE_EUC &&
325 (unsigned char)name[i] == 0x8e) {
326 if (to_code != CODE_SJIS) {
332 memmove(name + i, name + i + 1, len - i);
336 if (from_code == CODE_SJIS && X0201_KANA_P(name[i])) {
337 if (to_code != CODE_EUC) {
341 if (len == size - 1) /* check overflow */
343 memmove(name+i+1, name+i, len-i);
349 if (from_code == CODE_EUC && (name[i] & 0x80) && (name[i+1] & 0x80)) {
351 if (to_code != CODE_SJIS) {
356 c1 = (unsigned char)name[i];
357 c2 = (unsigned char)name[i+1];
364 if (from_code == CODE_SJIS &&
365 SJIS_FIRST_P(name[i]) &&
366 SJIS_SECOND_P(name[i+1])) {
369 if (to_code != CODE_EUC) {
374 c1 = (unsigned char)name[i];
375 c2 = (unsigned char)name[i+1];
382 #endif /* MULTIBYTE_FILENAME */
386 /* transpose from_delim to to_delim */
388 if ((ptr = strchr(from_delim, name[i])) != NULL) {
389 name[i] = to_delim[ptr - from_delim];
394 if (case_to == TO_UPPER && islower(name[i])) {
395 name[i] = toupper(name[i]);
398 if (case_to == TO_LOWER && isupper(name[i])) {
399 name[i] = tolower(name[i]);
404 #ifdef MULTIBYTE_FILENAME
405 if (to_code_save == CODE_CAP) {
406 len = sjis_to_cap(tmp, name, sizeof(tmp));
407 strncpy(name, tmp, size);
411 #endif /* MULTIBYTE_FILENAME */
415 * Generic (MS-DOS style) time stamp format (localtime):
417 * 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
418 * |<---- year-1980 --->|<- month ->|<--- day ---->|
420 * 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
421 * |<--- hour --->|<---- minute --->|<- second/2 ->|
426 generic_to_unix_stamp(t)
431 #define subbits(n, off, len) (((n) >> (off)) & ((1 << (len))-1))
433 tm.tm_sec = subbits(t, 0, 5) * 2;
434 tm.tm_min = subbits(t, 5, 6);
435 tm.tm_hour = subbits(t, 11, 5);
436 tm.tm_mday = subbits(t, 16, 5);
437 tm.tm_mon = subbits(t, 21, 4) - 1;
438 tm.tm_year = subbits(t, 25, 7) + 80;
444 return timelocal(&tm);
449 unix_to_generic_stamp(t)
452 struct tm *tm = localtime(&t);
457 return ((long)(tm->tm_year << 25) +
459 (tm->tm_mday << 16) +
460 (tm->tm_hour << 11) +
466 wintime_to_unix_stamp()
470 uint64_t epoch = ((uint64_t)0x019db1de << 32) + 0xd53e8000;
471 /* 0x019db1ded53e8000ULL: 1970-01-01 00:00:00 (UTC) */
473 t = (unsigned long)get_longword();
474 t |= (uint64_t)(unsigned long)get_longword() << 32;
475 t = (t - epoch) / 10000000;
479 unsigned long t, q, x;
480 unsigned long wintime[8];
481 unsigned long epoch[8] = {0x01,0x9d,0xb1,0xde, 0xd5,0x3e,0x80,0x00};
482 /* 1970-01-01 00:00:00 (UTC) */
483 /* wintime -= epoch */
485 for (i = 7; i >= 0; i--) {
486 wintime[i] = (unsigned)get_byte() - epoch[i] - borrow;
487 borrow = (wintime[i] > 0xff) ? 1 : 0;
491 /* q = wintime / 10000000 */
493 x = 10000000; /* x: 24bit */
494 for (i = 0; i < 8; i++) {
495 t = (t << 8) + wintime[i]; /* 24bit + 8bit. t must be 32bit variable */
496 q <<= 8; /* q must be 32bit (time_t) */
508 * --------------------------------
510 * 2 or 4 next-header size [*1]
511 * --------------------------------------
512 * ext header: 1 ext-type ^
513 * ? contents | [*1] next-header size
514 * 2 or 4 next-header size v
515 * --------------------------------------
517 * on level 1, 2 header:
518 * size field is 2 bytes
520 * size field is 4 bytes
524 get_extended_header(fp, hdr, header_size, hcrc)
530 char data[LZHEADER_STORAGE];
532 char dirname[FILENAME_LENGTH];
535 ssize_t whole_size = header_size;
537 int n = 1 + hdr->size_field_length; /* `ext-type' + `next-header size' */
539 if (hdr->header_level == 0)
542 name_length = strlen(hdr->name);
544 while (header_size) {
546 if (verbose_listing && verbose > 1)
550 if (sizeof(data) < header_size) {
551 error("header size (%ld) too large.", header_size);
555 if (fread(data, header_size, 1, fp) == 0) {
556 error("Invalid header (LHa file ?)");
560 ext_type = get_byte();
564 if (verbose_listing && verbose > 1) printf(" < header crc >\n");
566 /* header crc (CRC-16) */
567 hdr->header_crc = get_word();
568 /* clear buffer for CRC calculation. */
569 data[1] = data[2] = 0;
570 skip_bytes(header_size - n - 2);
574 if (verbose_listing && verbose > 1) printf(" < filename >\n");
578 get_bytes(hdr->name, header_size-n, sizeof(hdr->name)-1);
579 hdr->name[name_length] = 0;
583 if (verbose_listing && verbose > 1) printf(" < directory >\n");
586 dir_length = get_bytes(dirname, header_size-n, sizeof(dirname)-1);
587 dirname[dir_length] = 0;
591 if (verbose_listing && verbose > 1) printf(" < MS-DOS attribute >\n");
593 /* MS-DOS attribute */
594 hdr->attribute = get_word();
598 if (verbose_listing && verbose > 1) printf(" < Windows time stamp (FILETIME) >\n");
600 /* Windows time stamp (FILETIME structure) */
601 /* it is time in 100 nano seconds since 1601-01-01 00:00:00 */
603 skip_bytes(8); /* create time is ignored */
605 /* set last modified time */
606 if (hdr->header_level >= 2)
607 skip_bytes(8); /* time_t has been already set */
609 hdr->unix_last_modified_stamp = wintime_to_unix_stamp();
611 skip_bytes(8); /* last access time is ignored */
616 if (verbose_listing && verbose > 1) printf(" < 64bits file size header >\n");
619 /* 64bits file size header (UNLHA32 extension) */
620 hdr->packed_size = get_longlongword();
621 hdr->original_size = get_longlongword();
630 if (verbose_listing && verbose > 1) printf(" < UNIX permission >\n");
632 /* UNIX permission */
633 hdr->unix_mode = get_word();
637 if (verbose_listing && verbose > 1) printf(" < UNIX gid and uid >\n");
639 /* UNIX gid and uid */
640 hdr->unix_gid = get_word();
641 hdr->unix_uid = get_word();
645 if (verbose_listing && verbose > 1) printf(" < UNIX group name >\n");
647 /* UNIX group name */
648 i = get_bytes(hdr->group, header_size-n, sizeof(hdr->group)-1);
649 hdr->group[i] = '\0';
653 if (verbose_listing && verbose > 1) printf(" < UNIX user name >\n");
656 i = get_bytes(hdr->user, header_size-n, sizeof(hdr->user)-1);
661 if (verbose_listing && verbose > 1) printf(" < UNIX last modifed time (time_t) >\n");
663 /* UNIX last modified time */
664 hdr->unix_last_modified_stamp = (time_t) get_longword();
668 /* 0x39: multi-disk header
669 0x3f: uncompressed comment
670 0x42: 64bit large file size
671 0x48-0x4f(?): reserved for authenticity verification
673 0x7e: extended attribute - platform information
674 0x7f: extended attribute - permission, owner-id and timestamp
676 0xc4: compressed comment (dict size: 4096)
677 0xc5: compressed comment (dict size: 8192)
678 0xc6: compressed comment (dict size: 16384)
679 0xc7: compressed comment (dict size: 32768)
680 0xc8: compressed comment (dict size: 65536)
681 0xd0-0xdf(?): operating systemm specific information
682 0xfc: encapsulation (another opinion)
683 0xfe: extended attribute - platform information(another opinion)
684 0xff: extended attribute - permission, owner-id and timestamp
685 (level 3 on UNLHA32) */
687 warning("unknown extended header 0x%02x", ext_type);
688 skip_bytes(header_size - n);
693 *hcrc = calccrc(*hcrc, data, header_size);
695 if (hdr->size_field_length == 2)
696 whole_size += header_size = get_word();
698 whole_size += header_size = get_longword();
701 /* concatenate dirname and filename */
703 if (name_length + dir_length >= sizeof(hdr->name)) {
704 warning("the length of pathname \"%s%s\" is too long.",
706 name_length = sizeof(hdr->name) - dir_length - 1;
707 hdr->name[name_length] = 0;
709 strcat(dirname, hdr->name); /* ok */
710 strcpy(hdr->name, dirname); /* ok */
711 name_length += dir_length;
717 #define I_HEADER_SIZE 0 /* level 0,1,2 */
718 #define I_HEADER_CHECKSUM 1 /* level 0,1 */
719 #define I_METHOD 2 /* level 0,1,2,3 */
720 #define I_PACKED_SIZE 7 /* level 0,1,2,3 */
721 #define I_ATTRIBUTE 19 /* level 0,1,2,3 */
722 #define I_HEADER_LEVEL 20 /* level 0,1,2,3 */
724 #define COMMON_HEADER_SIZE 21 /* size of common part */
726 #define I_GENERIC_HEADER_SIZE 24 /* + name_length */
727 #define I_LEVEL0_HEADER_SIZE 36 /* + name_length (unix extended) */
728 #define I_LEVEL1_HEADER_SIZE 27 /* + name_length */
729 #define I_LEVEL2_HEADER_SIZE 26 /* + padding */
730 #define I_LEVEL3_HEADER_SIZE 32
736 * offset size field name
737 * ----------------------------------
738 * 0 1 header size [*1]
740 * ---------------------------------------
742 * 7 4 packed size [*2] |
743 * 11 4 original size |
746 * 19 1 attribute | [*1] header size (X+Y+22)
747 * 20 1 level (0x00 fixed) |
750 * X +22 2 file crc (CRC-16) |
751 * X +24 Y ext-header(old style) v
752 * -------------------------------------------------
754 * : | [*2] packed size
756 * -------------------------------------------------
758 * ext-header(old style)
772 * bit6 archive bit (need to backup)
776 get_header_level0(fp, hdr, data)
787 hdr->size_field_length = 2; /* in bytes */
788 hdr->header_size = header_size = get_byte();
789 checksum = get_byte();
791 if (fread(data + COMMON_HEADER_SIZE,
792 header_size + 2 - COMMON_HEADER_SIZE, 1, fp) == 0) {
793 error("Invalid header (LHarc file ?)");
794 return FALSE; /* finish */
797 if (calc_sum(data + I_METHOD, header_size) != checksum) {
798 error("Checksum error (LHarc file?)");
802 get_bytes(hdr->method, 5, sizeof(hdr->method));
803 hdr->packed_size = (unsigned long)get_longword();
804 hdr->original_size = (unsigned long)get_longword();
805 hdr->unix_last_modified_stamp = generic_to_unix_stamp(get_longword());
806 hdr->attribute = get_byte(); /* MS-DOS attribute */
807 hdr->header_level = get_byte();
808 name_length = get_byte();
809 i = get_bytes(hdr->name, name_length, sizeof(hdr->name)-1);
812 /* defaults for other type */
813 hdr->unix_mode = UNIX_FILE_REGULAR | UNIX_RW_RW_RW;
817 extend_size = header_size+2 - name_length - 24;
819 if (extend_size < 0) {
820 if (extend_size == -2) {
821 /* CRC field is not given */
822 hdr->extend_type = EXTEND_GENERIC;
823 hdr->has_crc = FALSE;
828 error("Unkonwn header (lha file?)");
833 hdr->crc = get_word();
835 if (extend_size == 0)
838 hdr->extend_type = get_byte();
841 if (hdr->extend_type == EXTEND_UNIX) {
842 if (extend_size >= 11) {
843 hdr->minor_version = get_byte();
844 hdr->unix_last_modified_stamp = (time_t) get_longword();
845 hdr->unix_mode = get_word();
846 hdr->unix_uid = get_word();
847 hdr->unix_gid = get_word();
850 hdr->extend_type = EXTEND_GENERIC;
854 skip_bytes(extend_size);
856 hdr->header_size += 2;
864 * offset size field name
865 * -----------------------------------
866 * 0 1 header size [*1]
868 * -------------------------------------
870 * 7 4 skip size [*2] |
871 * 11 4 original size |
874 * 19 1 attribute (0x20 fixed) | [*1] header size (X+Y+25)
875 * 20 1 level (0x01 fixed) |
878 * X+ 22 2 file crc (CRC-16) |
881 * X+Y+25 2 next-header size v
882 * -------------------------------------------------
883 * X+Y+27 Z ext-header ^
885 * ----------------------------------- | [*2] skip size
888 * -------------------------------------------------
892 get_header_level1(fp, hdr, data)
903 hdr->size_field_length = 2; /* in bytes */
904 hdr->header_size = header_size = get_byte();
905 checksum = get_byte();
907 if (fread(data + COMMON_HEADER_SIZE,
908 header_size + 2 - COMMON_HEADER_SIZE, 1, fp) == 0) {
909 error("Invalid header (LHarc file ?)");
910 return FALSE; /* finish */
913 if (calc_sum(data + I_METHOD, header_size) != checksum) {
914 error("Checksum error (LHarc file?)");
918 get_bytes(hdr->method, 5, sizeof(hdr->method));
919 hdr->packed_size = (unsigned long)get_longword(); /* skip size */
920 hdr->original_size = (unsigned long)get_longword();
921 hdr->unix_last_modified_stamp = generic_to_unix_stamp(get_longword());
922 hdr->attribute = get_byte(); /* 0x20 fixed */
923 hdr->header_level = get_byte();
925 name_length = get_byte();
926 i = get_bytes(hdr->name, name_length, sizeof(hdr->name)-1);
929 /* defaults for other type */
930 hdr->unix_mode = UNIX_FILE_REGULAR | UNIX_RW_RW_RW;
935 hdr->crc = get_word();
936 hdr->extend_type = get_byte();
938 dummy = header_size+2 - name_length - I_LEVEL1_HEADER_SIZE;
940 skip_bytes(dummy); /* skip old style extend header */
942 extend_size = get_word();
943 extend_size = get_extended_header(fp, hdr, extend_size, 0);
944 if (extend_size == -1)
947 /* On level 1 header, size fields should be adjusted. */
948 /* the `packed_size' field contains the extended header size. */
949 /* the `header_size' field does not. */
950 hdr->packed_size -= extend_size;
951 hdr->header_size += extend_size + 2;
960 * offset size field name
961 * --------------------------------------------------
962 * 0 2 total header size [*1] ^
963 * ----------------------- |
965 * 7 4 packed size [*2] |
966 * 11 4 original size |
968 * 19 1 RESERVED (0x20 fixed) | [*1] total header size
969 * 20 1 level (0x02 fixed) | (X+26+(1))
970 * 21 2 file crc (CRC-16) |
972 * 24 2 next-header size |
973 * ----------------------------------- |
976 * ----------------------------------- |
977 * X +26 (1) padding v
978 * -------------------------------------------------
980 * : | [*2] packed size
982 * -------------------------------------------------
986 get_header_level2(fp, hdr, data)
996 hdr->size_field_length = 2; /* in bytes */
997 hdr->header_size = header_size = get_word();
999 if (fread(data + COMMON_HEADER_SIZE,
1000 I_LEVEL2_HEADER_SIZE - COMMON_HEADER_SIZE, 1, fp) == 0) {
1001 error("Invalid header (LHarc file ?)");
1002 return FALSE; /* finish */
1005 get_bytes(hdr->method, 5, sizeof(hdr->method));
1006 hdr->packed_size = (unsigned long)get_longword();
1007 hdr->original_size = (unsigned long)get_longword();
1008 hdr->unix_last_modified_stamp = get_longword();
1009 hdr->attribute = get_byte(); /* reserved */
1010 hdr->header_level = get_byte();
1012 /* defaults for other type */
1013 hdr->unix_mode = UNIX_FILE_REGULAR | UNIX_RW_RW_RW;
1017 hdr->has_crc = TRUE;
1018 hdr->crc = get_word();
1019 hdr->extend_type = get_byte();
1020 extend_size = get_word();
1022 INITIALIZE_CRC(hcrc);
1023 hcrc = calccrc(hcrc, data, get_ptr - data);
1025 extend_size = get_extended_header(fp, hdr, extend_size, &hcrc);
1026 if (extend_size == -1)
1029 padding = header_size - I_LEVEL2_HEADER_SIZE - extend_size;
1030 while (padding--) /* padding should be 0 or 1 */
1031 hcrc = UPDATE_CRC(hcrc, fgetc(fp));
1033 if (hdr->header_crc != hcrc)
1034 error("header CRC error");
1043 * offset size field name
1044 * --------------------------------------------------
1045 * 0 2 size field length (4 fixed) ^
1047 * 7 4 packed size [*2] |
1048 * 11 4 original size |
1050 * 19 1 RESERVED (0x20 fixed) | [*1] total header size
1051 * 20 1 level (0x03 fixed) | (X+32)
1052 * 21 2 file crc (CRC-16) |
1054 * 24 4 total header size [*1] |
1055 * 28 4 next-header size |
1056 * ----------------------------------- |
1059 * -------------------------------------------------
1061 * : | [*2] packed size
1063 * -------------------------------------------------
1067 get_header_level3(fp, hdr, data)
1073 ssize_t extend_size;
1077 hdr->size_field_length = get_word();
1079 if (fread(data + COMMON_HEADER_SIZE,
1080 I_LEVEL3_HEADER_SIZE - COMMON_HEADER_SIZE, 1, fp) == 0) {
1081 error("Invalid header (LHarc file ?)");
1082 return FALSE; /* finish */
1085 get_bytes(hdr->method, 5, sizeof(hdr->method));
1086 hdr->packed_size = (unsigned long)get_longword();
1087 hdr->original_size = (unsigned long)get_longword();
1088 hdr->unix_last_modified_stamp = get_longword();
1089 hdr->attribute = get_byte(); /* reserved */
1090 hdr->header_level = get_byte();
1092 /* defaults for other type */
1093 hdr->unix_mode = UNIX_FILE_REGULAR | UNIX_RW_RW_RW;
1097 hdr->has_crc = TRUE;
1098 hdr->crc = get_word();
1099 hdr->extend_type = get_byte();
1100 hdr->header_size = header_size = get_longword();
1101 extend_size = get_longword();
1103 INITIALIZE_CRC(hcrc);
1104 hcrc = calccrc(hcrc, data, get_ptr - data);
1106 extend_size = get_extended_header(fp, hdr, extend_size, &hcrc);
1107 if (extend_size == -1)
1110 padding = header_size - I_LEVEL3_HEADER_SIZE - extend_size;
1111 while (padding--) /* padding should be 0 */
1112 hcrc = UPDATE_CRC(hcrc, fgetc(fp));
1114 if (hdr->header_crc != hcrc)
1115 error("header CRC error");
1125 char data[LZHEADER_STORAGE];
1127 int archive_kanji_code = CODE_SJIS;
1128 int system_kanji_code = default_system_kanji_code;
1129 char *archive_delim = "\377\\"; /* `\' is for level 0 header and
1131 char *system_delim = "//";
1132 int filename_case = NONE;
1135 memset(hdr, 0, sizeof(LzHeader));
1139 if ((end_mark = getc(fp)) == EOF || end_mark == 0) {
1140 return FALSE; /* finish */
1144 if (fread(data + 1, COMMON_HEADER_SIZE - 1, 1, fp) == 0) {
1145 error("Invalid header (LHarc file ?)");
1146 return FALSE; /* finish */
1149 switch (data[I_HEADER_LEVEL]) {
1151 if (get_header_level0(fp, hdr, data) == FALSE)
1155 if (get_header_level1(fp, hdr, data) == FALSE)
1159 if (get_header_level2(fp, hdr, data) == FALSE)
1163 if (get_header_level3(fp, hdr, data) == FALSE)
1167 error("Unknown level header (level %d)", data[I_HEADER_LEVEL]);
1171 /* filename conversion */
1172 switch (hdr->extend_type) {
1174 filename_case = convertcase ? TO_LOWER : NONE;
1181 filename_case = NONE;
1185 archive_delim = "\377/:\\";
1186 /* `\' is for level 0 header and broken archive. */
1187 system_delim = "/://";
1188 filename_case = NONE;
1192 filename_case = convertcase ? TO_LOWER : NONE;
1196 if (optional_archive_kanji_code)
1197 archive_kanji_code = optional_archive_kanji_code;
1198 if (optional_system_kanji_code)
1199 system_kanji_code = optional_system_kanji_code;
1200 if (optional_archive_delim)
1201 archive_delim = optional_archive_delim;
1202 if (optional_system_delim)
1203 system_delim = optional_system_delim;
1204 if (optional_filename_case)
1205 filename_case = optional_filename_case;
1207 /* kanji code and delimiter conversion */
1208 convert_filename(hdr->name, strlen(hdr->name), sizeof(hdr->name),
1211 archive_delim, system_delim, filename_case);
1213 if ((hdr->unix_mode & UNIX_FILE_SYMLINK) == UNIX_FILE_SYMLINK) {
1215 /* split symbolic link */
1216 p = strchr(hdr->name, '|');
1218 /* hdr->name is symbolic link name */
1219 /* hdr->realname is real name */
1221 strcpy(hdr->realname, p+1); /* ok */
1224 error("unknown symlink name \"%s\"", hdr->name);
1230 /* skip SFX header */
1235 unsigned char buffer[64 * 1024]; /* max seek size */
1239 n = fread(buffer, 1, sizeof(buffer), fp);
1241 for (p = buffer; p < buffer + n; p++) {
1242 if (! (p[I_METHOD]=='-' && p[I_METHOD+1]=='l' && p[I_METHOD+4]=='-'))
1244 /* found "-l??-" keyword (as METHOD type string) */
1246 /* level 0 or 1 header */
1247 if ((p[I_HEADER_LEVEL] == 0 || p[I_HEADER_LEVEL] == 1)
1248 && p[I_HEADER_SIZE] > 20
1249 && p[I_HEADER_CHECKSUM] == calc_sum(p+2, p[I_HEADER_SIZE])) {
1250 if (fseeko(fp, (p - buffer) - n, SEEK_CUR) == -1)
1251 fatal_error("cannot seek header");
1255 /* level 2 header */
1256 if (p[I_HEADER_LEVEL] == 2
1257 && p[I_HEADER_SIZE] >= 24
1258 && p[I_ATTRIBUTE] == 0x20) {
1259 if (fseeko(fp, (p - buffer) - n, SEEK_CUR) == -1)
1260 fatal_error("cannot seek header");
1265 if (fseeko(fp, -n, SEEK_CUR) == -1)
1266 fatal_error("cannot seek header");
1271 /* remove leading `xxxx/..' */
1273 remove_leading_dots(char *path)
1278 if (strcmp(first, "..") == 0) {
1279 warning("Removing leading `..' from member name.");
1280 return first+1; /* change to "." */
1283 if (strstr(first, "..") == 0)
1286 while (path && *path) {
1288 if (strcmp(path, "..") == 0)
1289 ptr = path = path+2;
1290 else if (strncmp(path, "../", 3) == 0)
1291 ptr = path = path+3;
1293 path = strchr(path, '/');
1295 if (path && *path == '/') {
1301 warning("Removing leading `%.*s' from member name.", ptr-first, first);
1309 copy_path_element(char *dst, const char *src, int size)
1313 if (size < 1) return 0;
1315 for (i = 0; i < size; i++) {
1319 if (dst[i] == '/') {
1333 remove leading "xxx/../"
1334 remove "./", "././", "././ ... ./"
1335 remove duplicated "/"
1338 canon_path(char *newpath, char *path, size_t size)
1343 path = remove_leading_dots(path);
1346 if (path[0] == '.' && path[1] == '/')
1350 len = copy_path_element(newpath, path, size);
1359 /* remove duplicated '/' */
1360 while (*path == '/') path++;
1363 /* When newpath is empty, set "." */
1365 strcpy(newpath, ".");
1369 return newpath - p; /* string length */
1373 init_header(name, v_stat, hdr)
1375 struct stat *v_stat;
1380 memset(hdr, 0, sizeof(LzHeader));
1382 /* the `method' member is rewrote by the encoding function.
1383 but need set for empty files */
1384 memcpy(hdr->method, LZHUFF0_METHOD, METHOD_TYPE_STORAGE);
1386 hdr->packed_size = 0;
1387 hdr->original_size = v_stat->st_size;
1388 hdr->attribute = GENERIC_ATTRIBUTE;
1389 hdr->header_level = header_level;
1391 len = canon_path(hdr->name, name, sizeof(hdr->name));
1394 hdr->extend_type = EXTEND_UNIX;
1395 hdr->unix_last_modified_stamp = v_stat->st_mtime;
1396 /* since 00:00:00 JAN.1.1970 */
1397 #ifdef NOT_COMPATIBLE_MODE
1398 /* Please need your modification in this space. */
1401 if (S_ISREG(v_stat->st_mode))
1402 hdr->unix_mode = hdr->unix_mode | UNIX_FILE_REGULAR;
1403 if (S_ISDIR(v_stat->st_mode))
1404 hdr->unix_mode = hdr->unix_mode | UNIX_FILE_DIRECTORY;
1405 if (S_ISLNK(v_stat->st_mode))
1406 hdr->unix_mode = hdr->unix_mode | UNIX_FILE_SYMLINK;
1407 if (v_stat->st_mode & S_IRUSR)
1408 hdr->unix_mode = hdr->unix_mode | UNIX_OWNER_READ_PERM;
1409 if (v_stat->st_mode & S_IRGRP)
1410 hdr->unix_mode = hdr->unix_mode | UNIX_GROUP_READ_PERM;
1411 if (v_stat->st_mode & S_IROTH)
1412 hdr->unix_mode = hdr->unix_mode | UNIX_OTHER_READ_PERM;
1413 if (v_stat->st_mode & S_IWUSR)
1414 hdr->unix_mode = hdr->unix_mode | UNIX_OWNER_WRITE_PERM;
1415 if (v_stat->st_mode & S_IWGRP)
1416 hdr->unix_mode = hdr->unix_mode | UNIX_GROUP_WRITE_PERM;
1417 if (v_stat->st_mode & S_IWOTH)
1418 hdr->unix_mode = hdr->unix_mode | UNIX_OTHER_WRITE_PERM;
1419 if (v_stat->st_mode & S_IXUSR)
1420 hdr->unix_mode = hdr->unix_mode | UNIX_OWNER_EXEC_PERM;
1421 if (v_stat->st_mode & S_IXGRP)
1422 hdr->unix_mode = hdr->unix_mode | UNIX_GROUP_EXEC_PERM;
1423 if (v_stat->st_mode & S_IXOTH)
1424 hdr->unix_mode = hdr->unix_mode | UNIX_OTHER_EXEC_PERM;
1425 if (v_stat->st_mode & S_ISUID)
1426 hdr->unix_mode = hdr->unix_mode | UNIX_SETUID;
1427 if (v_stat->st_mode & S_ISGID)
1428 hdr->unix_mode = hdr->unix_mode | UNIX_SETGID;
1429 #endif /* __DJGPP__ */
1431 hdr->unix_mode = v_stat->st_mode;
1434 hdr->unix_uid = v_stat->st_uid;
1435 hdr->unix_gid = v_stat->st_gid;
1437 #if INCLUDE_OWNER_NAME_IN_HEADER
1440 struct passwd *ent = getpwuid(hdr->unix_uid);
1443 strncpy(hdr->user, ent->pw_name, sizeof(hdr->user));
1444 if (hdr->user[sizeof(hdr->user)-1])
1445 hdr->user[sizeof(hdr->user)-1] = 0;
1451 struct group *ent = getgrgid(hdr->unix_gid);
1454 strncpy(hdr->group, ent->gr_name, sizeof(hdr->group));
1455 if (hdr->group[sizeof(hdr->group)-1])
1456 hdr->group[sizeof(hdr->group)-1] = 0;
1460 #endif /* INCLUDE_OWNER_NAME_IN_HEADER */
1461 if (is_directory(v_stat)) {
1462 memcpy(hdr->method, LZHDIRS_METHOD, METHOD_TYPE_STORAGE);
1463 hdr->attribute = GENERIC_DIRECTORY_ATTRIBUTE;
1464 hdr->original_size = 0;
1465 if (len > 0 && hdr->name[len - 1] != '/') {
1466 if (len < sizeof(hdr->name)-1)
1467 strcpy(&hdr->name[len++], "/"); /* ok */
1469 warning("the length of dirname \"%s\" is too long.",
1475 if (is_symlink(v_stat)) {
1476 memcpy(hdr->method, LZHDIRS_METHOD, METHOD_TYPE_STORAGE);
1477 hdr->attribute = GENERIC_DIRECTORY_ATTRIBUTE;
1478 hdr->original_size = 0;
1479 readlink(name, hdr->realname, sizeof(hdr->realname));
1485 write_unix_info(hdr)
1488 /* UNIX specific informations */
1490 put_word(5); /* size */
1491 put_byte(0x50); /* permission */
1492 put_word(hdr->unix_mode);
1494 put_word(7); /* size */
1495 put_byte(0x51); /* gid and uid */
1496 put_word(hdr->unix_gid);
1497 put_word(hdr->unix_uid);
1499 if (hdr->group[0]) {
1500 int len = strlen(hdr->group);
1501 put_word(len + 3); /* size */
1502 put_byte(0x52); /* group name */
1503 put_bytes(hdr->group, len);
1507 int len = strlen(hdr->user);
1508 put_word(len + 3); /* size */
1509 put_byte(0x53); /* user name */
1510 put_bytes(hdr->user, len);
1513 if (hdr->header_level == 1) {
1514 put_word(7); /* size */
1515 put_byte(0x54); /* time stamp */
1516 put_longword(hdr->unix_last_modified_stamp);
1521 write_header_level0(data, hdr, pathname)
1523 char *data, *pathname;
1530 memset(data, 0, LZHEADER_STORAGE);
1532 put_byte(0x00); /* header size */
1533 put_byte(0x00); /* check sum */
1534 put_bytes(hdr->method, 5);
1535 put_longword(hdr->packed_size);
1536 put_longword(hdr->original_size);
1537 put_longword(unix_to_generic_stamp(hdr->unix_last_modified_stamp));
1538 put_byte(hdr->attribute);
1539 put_byte(hdr->header_level); /* level 0 */
1541 /* write pathname (level 0 header contains the directory part) */
1542 name_length = strlen(pathname);
1544 limit = 255 - I_GENERIC_HEADER_SIZE + 2;
1546 limit = 255 - I_LEVEL0_HEADER_SIZE + 2;
1548 if (name_length > limit) {
1549 warning("the length of pathname \"%s\" is too long.", pathname);
1550 name_length = limit;
1552 put_byte(name_length);
1553 put_bytes(pathname, name_length);
1556 if (generic_format) {
1557 header_size = I_GENERIC_HEADER_SIZE + name_length - 2;
1558 data[I_HEADER_SIZE] = header_size;
1559 data[I_HEADER_CHECKSUM] = calc_sum(data + I_METHOD, header_size);
1561 /* write old-style extend header */
1562 put_byte(EXTEND_UNIX);
1563 put_byte(CURRENT_UNIX_MINOR_VERSION);
1564 put_longword(hdr->unix_last_modified_stamp);
1565 put_word(hdr->unix_mode);
1566 put_word(hdr->unix_uid);
1567 put_word(hdr->unix_gid);
1569 /* size of extended header is 12 */
1570 header_size = I_LEVEL0_HEADER_SIZE + name_length - 2;
1571 data[I_HEADER_SIZE] = header_size;
1572 data[I_HEADER_CHECKSUM] = calc_sum(data + I_METHOD, header_size);
1575 return header_size + 2;
1579 write_header_level1(data, hdr, pathname)
1581 char *data, *pathname;
1583 int name_length, dir_length, limit;
1584 char *basename, *dirname;
1586 char *extend_header_top;
1587 size_t extend_header_size;
1589 basename = strrchr(pathname, LHA_PATHSEP);
1592 name_length = strlen(basename);
1594 dir_length = basename - dirname;
1597 basename = pathname;
1598 name_length = strlen(basename);
1604 memset(data, 0, LZHEADER_STORAGE);
1606 put_byte(0x00); /* header size */
1607 put_byte(0x00); /* check sum */
1608 put_bytes(hdr->method, 5);
1609 put_longword(hdr->packed_size);
1610 put_longword(hdr->original_size);
1611 put_longword(unix_to_generic_stamp(hdr->unix_last_modified_stamp));
1613 put_byte(hdr->header_level); /* level 1 */
1615 /* level 1 header: write filename (basename only) */
1616 limit = 255 - I_LEVEL1_HEADER_SIZE + 2;
1617 if (name_length > limit) {
1618 put_byte(0); /* name length */
1621 put_byte(name_length);
1622 put_bytes(basename, name_length);
1630 put_byte(EXTEND_UNIX);
1632 /* write extend header from here. */
1634 extend_header_top = put_ptr+2; /* +2 for the field `next header size' */
1635 header_size = extend_header_top - data - 2;
1637 /* write filename and dirname */
1639 if (name_length > limit) {
1640 put_word(name_length + 3); /* size */
1641 put_byte(0x01); /* filename */
1642 put_bytes(basename, name_length);
1645 if (dir_length > 0) {
1646 put_word(dir_length + 3); /* size */
1647 put_byte(0x02); /* dirname */
1648 put_bytes(dirname, dir_length);
1651 if (!generic_format)
1652 write_unix_info(hdr);
1654 put_word(0x0000); /* next header size */
1656 extend_header_size = put_ptr - extend_header_top;
1657 /* On level 1 header, the packed size field is contains the ext-header */
1658 hdr->packed_size += put_ptr - extend_header_top;
1660 /* put `skip size' */
1661 setup_put(data + I_PACKED_SIZE);
1662 put_longword(hdr->packed_size);
1664 data[I_HEADER_SIZE] = header_size;
1665 data[I_HEADER_CHECKSUM] = calc_sum(data + I_METHOD, header_size);
1667 return header_size + extend_header_size + 2;
1671 write_header_level2(data, hdr, pathname)
1673 char *data, *pathname;
1675 int name_length, dir_length;
1676 char *basename, *dirname;
1678 char *extend_header_top;
1679 char *headercrc_ptr;
1682 basename = strrchr(pathname, LHA_PATHSEP);
1685 name_length = strlen(basename);
1687 dir_length = basename - dirname;
1690 basename = pathname;
1691 name_length = strlen(basename);
1697 memset(data, 0, LZHEADER_STORAGE);
1699 put_word(0x0000); /* header size */
1700 put_bytes(hdr->method, 5);
1701 put_longword(hdr->packed_size);
1702 put_longword(hdr->original_size);
1703 put_longword(hdr->unix_last_modified_stamp);
1705 put_byte(hdr->header_level); /* level 2 */
1712 put_byte(EXTEND_UNIX);
1714 /* write extend header from here. */
1716 extend_header_top = put_ptr+2; /* +2 for the field `next header size' */
1718 /* write common header */
1721 headercrc_ptr = put_ptr;
1722 put_word(0x0000); /* header CRC */
1724 /* write filename and dirname */
1725 /* must have this header, even if the name_length is 0. */
1726 put_word(name_length + 3); /* size */
1727 put_byte(0x01); /* filename */
1728 put_bytes(basename, name_length);
1730 if (dir_length > 0) {
1731 put_word(dir_length + 3); /* size */
1732 put_byte(0x02); /* dirname */
1733 put_bytes(dirname, dir_length);
1736 if (!generic_format)
1737 write_unix_info(hdr);
1739 put_word(0x0000); /* next header size */
1741 header_size = put_ptr - data;
1742 if ((header_size & 0xff) == 0) {
1743 /* cannot put zero at the first byte on level 2 header. */
1744 /* adjust header size. */
1745 put_byte(0); /* padding */
1749 /* put header size */
1750 setup_put(data + I_HEADER_SIZE);
1751 put_word(header_size);
1753 /* put header CRC in extended header */
1754 INITIALIZE_CRC(hcrc);
1755 hcrc = calccrc(hcrc, data, (unsigned int) header_size);
1756 setup_put(headercrc_ptr);
1763 write_header(fp, hdr)
1768 char data[LZHEADER_STORAGE];
1770 int archive_kanji_code = CODE_SJIS;
1771 int system_kanji_code = default_system_kanji_code;
1772 char *archive_delim = "\377";
1773 char *system_delim = "/";
1774 int filename_case = NONE;
1775 char pathname[FILENAME_LENGTH];
1777 if (optional_archive_kanji_code)
1778 archive_kanji_code = optional_archive_kanji_code;
1779 if (optional_system_kanji_code)
1780 system_kanji_code = optional_system_kanji_code;
1782 if (generic_format && convertcase)
1783 filename_case = TO_UPPER;
1785 if (hdr->header_level == 0) {
1786 archive_delim = "\\";
1789 if ((hdr->unix_mode & UNIX_FILE_SYMLINK) == UNIX_FILE_SYMLINK) {
1791 p = strchr(hdr->name, '|');
1793 error("symlink name \"%s\" contains '|' char. change it into '_'",
1797 if (xsnprintf(pathname, sizeof(pathname),
1798 "%s|%s", hdr->name, hdr->realname) == -1)
1799 error("file name is too long (%s -> %s)", hdr->name, hdr->realname);
1802 strncpy(pathname, hdr->name, sizeof(pathname));
1803 pathname[sizeof(pathname)-1] = 0;
1806 convert_filename(pathname, strlen(pathname), sizeof(pathname),
1809 system_delim, archive_delim, filename_case);
1811 switch (hdr->header_level) {
1813 header_size = write_header_level0(data, hdr, pathname);
1816 header_size = write_header_level1(data, hdr, pathname);
1819 header_size = write_header_level2(data, hdr, pathname);
1822 error("Unknown level header (level %d)", hdr->header_level);
1826 if (fwrite(data, header_size, 1, fp) == 0)
1827 fatal_error("Cannot write to temporary file");
1830 #if MULTIBYTE_FILENAME
1832 #if defined(__APPLE__) /* Added by Hiroto Sakai */
1834 #include <CoreFoundation/CFString.h>
1835 #include <CoreFoundation/CFStringEncodingExt.h>
1837 /* this is not need for Mac OS X v 10.2 later */
1839 kCFStringEncodingAllowLossyConversion = 1,
1840 kCFStringEncodingBasicDirectionLeftToRight = (1 << 1),
1841 kCFStringEncodingBasicDirectionRightToLeft = (1 << 2),
1842 kCFStringEncodingSubstituteCombinings = (1 << 3),
1843 kCFStringEncodingComposeCombinings = (1 << 4),
1844 kCFStringEncodingIgnoreCombinings = (1 << 5),
1845 kCFStringEncodingUseCanonical = (1 << 6),
1846 kCFStringEncodingUseHFSPlusCanonical = (1 << 7),
1847 kCFStringEncodingPrependBOM = (1 << 8),
1848 kCFStringEncodingDisableCorporateArea = (1 << 9),
1849 kCFStringEncodingASCIICompatibleConversion = (1 << 10),
1853 ConvertEncodingToUTF8(const char* inCStr,
1854 char* outUTF8Buffer,
1855 int outUTF8BufferLength,
1856 unsigned long scriptEncoding,
1857 unsigned long flags)
1859 unsigned long unicodeChars;
1860 unsigned long srcCharsUsed;
1861 unsigned long usedByteLen = 0;
1862 UniChar uniStr[512];
1863 unsigned long cfResult;
1865 cfResult = CFStringEncodingBytesToUnicode(scriptEncoding,
1873 if (cfResult == 0) {
1874 cfResult = CFStringEncodingUnicodeToBytes(kCFStringEncodingUTF8,
1879 (char*)outUTF8Buffer,
1880 outUTF8BufferLength - 1,
1882 outUTF8Buffer[usedByteLen] = '\0';
1889 ConvertUTF8ToEncoding(const char* inUTF8Buf,
1890 int inUTF8BufLength,
1891 char* outCStrBuffer,
1892 int outCStrBufferLength,
1893 unsigned long scriptEncoding,
1894 unsigned long flags)
1896 unsigned long unicodeChars;
1897 unsigned long srcCharsUsed;
1898 unsigned long usedByteLen = 0;
1899 UniChar uniStr[256];
1900 unsigned long cfResult;
1902 cfResult = CFStringEncodingBytesToUnicode(kCFStringEncodingUTF8,
1910 if (cfResult == 0) {
1911 cfResult = CFStringEncodingUnicodeToBytes(scriptEncoding,
1916 (char*)outCStrBuffer,
1917 outCStrBufferLength - 1,
1919 outCStrBuffer[usedByteLen] = '\0';
1929 ConvertEncodingByIconv(const char *src, char *dst, int dstsize,
1930 const char *srcEnc, const char *dstEnc)
1933 static char szTmpBuf[2048];
1939 dst_p = &szTmpBuf[0];
1940 iLen = (size_t)sizeof(szTmpBuf)-1;
1941 src_p = (char *)src;
1942 sLen = (size_t)strlen(src);
1943 memset(szTmpBuf, 0, sizeof(szTmpBuf));
1944 memset(dst, 0, dstsize);
1946 ic = iconv_open(dstEnc, srcEnc);
1947 if (ic == (iconv_t)-1) {
1948 error("iconv_open() failure: %s", strerror(errno));
1952 if (iconv(ic, &src_p, &sLen, &dst_p, &iLen) == (size_t)-1) {
1953 error("iconv() failure: %s", strerror(errno));
1958 strncpy(dst, szTmpBuf, dstsize);
1964 #endif /* defined(__APPLE__) */
1967 sjis_to_utf8(char *dst, const char *src, size_t dstsize)
1969 #if defined(__APPLE__)
1971 if (ConvertEncodingToUTF8(src, dst, dstsize,
1972 kCFStringEncodingDOSJapanese,
1973 kCFStringEncodingUseHFSPlusCanonical) == 0)
1976 if (ConvertEncodingByIconv(src, dst, dstsize, "SJIS", "UTF-8") != -1)
1979 error("not support utf-8 conversion");
1982 if (dstsize < 1) return dst;
1984 return strncpy(dst, src, dstsize-1);
1988 utf8_to_sjis(char *dst, const char *src, size_t dstsize)
1990 #if defined(__APPLE__)
1994 srclen = strlen(src);
1995 if (ConvertUTF8ToEncoding(src, srclen, dst, dstsize,
1996 kCFStringEncodingDOSJapanese,
1997 kCFStringEncodingUseHFSPlusCanonical) == 0)
2000 if (ConvertEncodingByIconv(src, dst, dstsize, "UTF-8", "SJIS") != -1)
2003 error("not support utf-8 conversion");
2006 if (dstsize < 1) return dst;
2008 return strncpy(dst, src, dstsize-1);
2012 * SJIS <-> EUC ÊÑ´¹´Ø¿ô
2013 * ¡ÖÆüËܸì¾ðÊó½èÍý¡× ¥½¥Õ¥È¥Ð¥ó¥¯(³ô)
2014 * ¤è¤êÈ´¿è(by Koji Arai)
2017 euc2sjis(int *p1, int *p2)
2019 unsigned char c1 = *p1 & 0x7f;
2020 unsigned char c2 = *p2 & 0x7f;
2021 int rowoff = c1 < 0x5f ? 0x70 : 0xb0;
2022 int celoff = c1 % 2 ? (c2 > 0x5f ? 0x20 : 0x1f) : 0x7e;
2023 *p1 = ((c1 + 1) >> 1) + rowoff;
2024 *p2 += celoff - 0x80;
2028 sjis2euc(int *p1, int *p2)
2030 unsigned char c1 = *p1;
2031 unsigned char c2 = *p2;
2032 int adjust = c2 < 0x9f;
2033 int rowoff = c1 < 0xa0 ? 0x70 : 0xb0;
2034 int celoff = adjust ? (c2 > 0x7f ? 0x20 : 0x1f) : 0x7e;
2035 *p1 = ((c1 - rowoff) << 1) - adjust;
2046 case '0': case '1': case '2': case '3': case '4':
2047 case '5': case '6': case '7': case '8': case '9':
2050 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
2051 return c - 'a' + 10;
2053 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
2054 return c - 'A' + 10;
2064 case 0: case 1: case 2: case 3: case 4:
2065 case 5: case 6: case 7: case 8: case 9:
2068 case 10: case 11: case 12: case 13: case 14: case 15:
2069 return c + 'a' - 10;
2077 cap_to_sjis(char *dst, const char *src, size_t dstsize)
2080 size_t len = strlen(src);
2083 for (i = j = 0; i < len && i < dstsize; i++) {
2084 if (src[i] != ':') {
2090 a = hex2int((unsigned char)src[i]);
2091 b = hex2int((unsigned char)src[i+1]);
2093 if (a == -1 || b == -1) {
2096 strncpy(dst+j, src+i, dstsize-j);
2103 dst[j++] = a * 16 + b;
2110 sjis_to_cap(char *dst, const char *src, size_t dstsize)
2113 size_t len = strlen(src);
2116 for (i = j = 0; i < len && i < dstsize; i++) {
2117 if (src[i] == ':') {
2118 strncpy(dst+j, ":3a", dstsize-j);
2123 if (isprint(src[i])) {
2128 if (j + 3 >= dstsize) {
2133 a = int2hex((unsigned char)src[i] / 16);
2134 b = int2hex((unsigned char)src[i] % 16);
2143 #endif /* MULTIBYTE_FILENAME */