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);
168 uint64_t b0, b1, b2, b3, b4, b5, b6, b7;
172 if (verbose_listing && verbose > 1)
173 printf("%02d %2d: ", get_ptr - start_ptr, 4);
184 l = (b7 << 24) + (b6 << 16) + (b5 << 8) + b4;
186 l |= (b3 << 24) + (b2 << 16) + (b1 << 8) + b0;
188 if (verbose_listing && verbose > 1)
189 printf("%lld(%#016llx)\n", l, l);
195 put_longlongword(uint64_t v)
209 get_bytes(buf, len, size)
216 if (verbose_listing && verbose > 1)
217 printf("%02d %2d: \"", get_ptr - start_ptr, len);
219 for (i = 0; i < len; i++) {
220 if (i < size) buf[i] = get_ptr[i];
222 if (verbose_listing && verbose > 1) {
224 printf("%c", buf[i]);
226 printf("\\x%02x", (unsigned char)buf[i]);
230 if (verbose_listing && verbose > 1)
233 for (i = 0; i < len && i < size; i++)
247 for (i = 0; i < len; i++)
251 /* added by Koji Arai */
253 convert_filename(name, len, size,
255 from_delim, to_delim,
258 int len; /* length of name */
259 int size; /* size of name buffer */
260 int from_code, to_code, case_to;
261 char *from_delim, *to_delim;
265 #ifdef MULTIBYTE_FILENAME
266 char tmp[FILENAME_LENGTH];
267 int to_code_save = NONE;
269 if (from_code == CODE_CAP) {
270 len = cap_to_sjis(tmp, name, sizeof(tmp));
271 strncpy(name, tmp, size);
274 from_code = CODE_SJIS;
277 if (to_code == CODE_CAP) {
278 to_code_save = CODE_CAP;
282 if (from_code == CODE_SJIS && to_code == CODE_UTF8) {
283 for (i = 0; i < len; i++)
284 /* FIXME: provisionally fix for the Mac OS CoreFoundation */
285 if ((unsigned char)name[i] == LHA_PATHSEP) name[i] = '/';
286 sjis_to_utf8(tmp, name, sizeof(tmp));
287 strncpy(name, tmp, size);
290 for (i = 0; i < len; i++)
291 if (name[i] == '/') name[i] = LHA_PATHSEP;
292 from_code = CODE_UTF8;
294 else if (from_code == CODE_UTF8 && to_code == CODE_SJIS) {
295 for (i = 0; i < len; i++)
296 /* FIXME: provisionally fix for the Mac OS CoreFoundation */
297 if ((unsigned char)name[i] == LHA_PATHSEP) name[i] = '/';
298 utf8_to_sjis(tmp, name, sizeof(tmp));
299 strncpy(name, tmp, size);
302 for (i = 0; i < len; i++)
303 if (name[i] == '/') name[i] = LHA_PATHSEP;
304 from_code = CODE_SJIS;
308 /* special case: if `name' has small lettter, not convert case. */
309 if (from_code == CODE_SJIS && case_to == TO_LOWER) {
310 for (i = 0; i < len; i++) {
311 #ifdef MULTIBYTE_FILENAME
312 if (SJIS_FIRST_P(name[i]) && SJIS_SECOND_P(name[i+1]))
316 if (islower(name[i])) {
323 for (i = 0; i < len; i ++) {
324 #ifdef MULTIBYTE_FILENAME
325 if (from_code == CODE_EUC &&
326 (unsigned char)name[i] == 0x8e) {
327 if (to_code != CODE_SJIS) {
333 memmove(name + i, name + i + 1, len - i);
337 if (from_code == CODE_SJIS && X0201_KANA_P(name[i])) {
338 if (to_code != CODE_EUC) {
342 if (len == size - 1) /* check overflow */
344 memmove(name+i+1, name+i, len-i);
350 if (from_code == CODE_EUC && (name[i] & 0x80) && (name[i+1] & 0x80)) {
352 if (to_code != CODE_SJIS) {
357 c1 = (unsigned char)name[i];
358 c2 = (unsigned char)name[i+1];
365 if (from_code == CODE_SJIS &&
366 SJIS_FIRST_P(name[i]) &&
367 SJIS_SECOND_P(name[i+1])) {
370 if (to_code != CODE_EUC) {
375 c1 = (unsigned char)name[i];
376 c2 = (unsigned char)name[i+1];
383 #endif /* MULTIBYTE_FILENAME */
387 /* transpose from_delim to to_delim */
389 if ((ptr = strchr(from_delim, name[i])) != NULL) {
390 name[i] = to_delim[ptr - from_delim];
395 if (case_to == TO_UPPER && islower(name[i])) {
396 name[i] = toupper(name[i]);
399 if (case_to == TO_LOWER && isupper(name[i])) {
400 name[i] = tolower(name[i]);
405 #ifdef MULTIBYTE_FILENAME
406 if (to_code_save == CODE_CAP) {
407 len = sjis_to_cap(tmp, name, sizeof(tmp));
408 strncpy(name, tmp, size);
412 #endif /* MULTIBYTE_FILENAME */
416 * Generic (MS-DOS style) time stamp format (localtime):
418 * 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
419 * |<---- year-1980 --->|<- month ->|<--- day ---->|
421 * 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
422 * |<--- hour --->|<---- minute --->|<- second/2 ->|
427 generic_to_unix_stamp(t)
432 #define subbits(n, off, len) (((n) >> (off)) & ((1 << (len))-1))
434 tm.tm_sec = subbits(t, 0, 5) * 2;
435 tm.tm_min = subbits(t, 5, 6);
436 tm.tm_hour = subbits(t, 11, 5);
437 tm.tm_mday = subbits(t, 16, 5);
438 tm.tm_mon = subbits(t, 21, 4) - 1;
439 tm.tm_year = subbits(t, 25, 7) + 80;
445 return timelocal(&tm);
450 unix_to_generic_stamp(t)
453 struct tm *tm = localtime(&t);
458 return ((long)(tm->tm_year << 25) +
460 (tm->tm_mday << 16) +
461 (tm->tm_hour << 11) +
467 wintime_to_unix_stamp()
471 uint64_t epoch = ((uint64_t)0x019db1de << 32) + 0xd53e8000;
472 /* 0x019db1ded53e8000ULL: 1970-01-01 00:00:00 (UTC) */
474 t = (unsigned long)get_longword();
475 t |= (uint64_t)(unsigned long)get_longword() << 32;
476 t = (t - epoch) / 10000000;
480 unsigned long t, q, x;
481 unsigned long wintime[8];
482 unsigned long epoch[8] = {0x01,0x9d,0xb1,0xde, 0xd5,0x3e,0x80,0x00};
483 /* 1970-01-01 00:00:00 (UTC) */
484 /* wintime -= epoch */
486 for (i = 7; i >= 0; i--) {
487 wintime[i] = (unsigned)get_byte() - epoch[i] - borrow;
488 borrow = (wintime[i] > 0xff) ? 1 : 0;
492 /* q = wintime / 10000000 */
494 x = 10000000; /* x: 24bit */
495 for (i = 0; i < 8; i++) {
496 t = (t << 8) + wintime[i]; /* 24bit + 8bit. t must be 32bit variable */
497 q <<= 8; /* q must be 32bit (time_t) */
509 * --------------------------------
511 * 2 or 4 next-header size [*1]
512 * --------------------------------------
513 * ext header: 1 ext-type ^
514 * ? contents | [*1] next-header size
515 * 2 or 4 next-header size v
516 * --------------------------------------
518 * on level 1, 2 header:
519 * size field is 2 bytes
521 * size field is 4 bytes
525 get_extended_header(fp, hdr, header_size, hcrc)
531 char data[LZHEADER_STORAGE];
533 char dirname[FILENAME_LENGTH];
536 ssize_t whole_size = header_size;
538 int n = 1 + hdr->size_field_length; /* `ext-type' + `next-header size' */
540 if (hdr->header_level == 0)
543 name_length = strlen(hdr->name);
545 while (header_size) {
547 if (verbose_listing && verbose > 1)
551 if (sizeof(data) < header_size) {
552 error("header size (%ld) too large.", header_size);
556 if (fread(data, header_size, 1, fp) == 0) {
557 error("Invalid header (LHa file ?)");
561 ext_type = get_byte();
565 if (verbose_listing && verbose > 1) printf(" < header crc >\n");
567 /* header crc (CRC-16) */
568 hdr->header_crc = get_word();
569 /* clear buffer for CRC calculation. */
570 data[1] = data[2] = 0;
571 skip_bytes(header_size - n - 2);
575 if (verbose_listing && verbose > 1) printf(" < filename >\n");
579 get_bytes(hdr->name, header_size-n, sizeof(hdr->name)-1);
580 hdr->name[name_length] = 0;
584 if (verbose_listing && verbose > 1) printf(" < directory >\n");
587 dir_length = get_bytes(dirname, header_size-n, sizeof(dirname)-1);
588 dirname[dir_length] = 0;
592 if (verbose_listing && verbose > 1) printf(" < MS-DOS attribute >\n");
594 /* MS-DOS attribute */
595 hdr->attribute = get_word();
599 if (verbose_listing && verbose > 1) printf(" < Windows time stamp (FILETIME) >\n");
601 /* Windows time stamp (FILETIME structure) */
602 /* it is time in 100 nano seconds since 1601-01-01 00:00:00 */
604 skip_bytes(8); /* create time is ignored */
606 /* set last modified time */
607 if (hdr->header_level >= 2)
608 skip_bytes(8); /* time_t has been already set */
610 hdr->unix_last_modified_stamp = wintime_to_unix_stamp();
612 skip_bytes(8); /* last access time is ignored */
617 if (verbose_listing && verbose > 1) printf(" < Windows file size header>\n");
620 /* Windows file size header (UNLHA32 extension) */
621 hdr->packed_size = get_longlongword();
622 hdr->original_size = get_longlongword();
631 if (verbose_listing && verbose > 1) printf(" < UNIX permission >\n");
633 /* UNIX permission */
634 hdr->unix_mode = get_word();
638 if (verbose_listing && verbose > 1) printf(" < UNIX gid and uid >\n");
640 /* UNIX gid and uid */
641 hdr->unix_gid = get_word();
642 hdr->unix_uid = get_word();
646 if (verbose_listing && verbose > 1) printf(" < UNIX group name >\n");
648 /* UNIX group name */
649 i = get_bytes(hdr->group, header_size-n, sizeof(hdr->group)-1);
650 hdr->group[i] = '\0';
654 if (verbose_listing && verbose > 1) printf(" < UNIX user name >\n");
657 i = get_bytes(hdr->user, header_size-n, sizeof(hdr->user)-1);
662 if (verbose_listing && verbose > 1) printf(" < UNIX last modifed time (time_t) >\n");
664 /* UNIX last modified time */
665 hdr->unix_last_modified_stamp = (time_t) get_longword();
669 /* 0x39: multi-disk header
670 0x3f: uncompressed comment
671 0x42: 64bit large file size
672 0x48-0x4f(?): reserved for authenticity verification
674 0x7e: extended attribute - platform information
675 0x7f: extended attribute - permission, owner-id and timestamp
677 0xc4: compressed comment (dict size: 4096)
678 0xc5: compressed comment (dict size: 8192)
679 0xc6: compressed comment (dict size: 16384)
680 0xc7: compressed comment (dict size: 32768)
681 0xc8: compressed comment (dict size: 65536)
682 0xd0-0xdf(?): operating systemm specific information
683 0xfc: encapsulation (another opinion)
684 0xfe: extended attribute - platform information(another opinion)
685 0xff: extended attribute - permission, owner-id and timestamp
686 (level 3 on UNLHA32) */
688 warning("unknown extended header 0x%02x", ext_type);
689 skip_bytes(header_size - n);
694 *hcrc = calccrc(*hcrc, data, header_size);
696 if (hdr->size_field_length == 2)
697 whole_size += header_size = get_word();
699 whole_size += header_size = get_longword();
702 /* concatenate dirname and filename */
704 if (name_length + dir_length >= sizeof(hdr->name)) {
705 warning("the length of pathname \"%s%s\" is too long.",
707 name_length = sizeof(hdr->name) - dir_length - 1;
708 hdr->name[name_length] = 0;
710 strcat(dirname, hdr->name); /* ok */
711 strcpy(hdr->name, dirname); /* ok */
712 name_length += dir_length;
718 #define I_HEADER_SIZE 0 /* level 0,1,2 */
719 #define I_HEADER_CHECKSUM 1 /* level 0,1 */
720 #define I_METHOD 2 /* level 0,1,2,3 */
721 #define I_PACKED_SIZE 7 /* level 0,1,2,3 */
722 #define I_ATTRIBUTE 19 /* level 0,1,2,3 */
723 #define I_HEADER_LEVEL 20 /* level 0,1,2,3 */
725 #define COMMON_HEADER_SIZE 21 /* size of common part */
727 #define I_GENERIC_HEADER_SIZE 24 /* + name_length */
728 #define I_LEVEL0_HEADER_SIZE 36 /* + name_length (unix extended) */
729 #define I_LEVEL1_HEADER_SIZE 27 /* + name_length */
730 #define I_LEVEL2_HEADER_SIZE 26 /* + padding */
731 #define I_LEVEL3_HEADER_SIZE 32
737 * offset size field name
738 * ----------------------------------
739 * 0 1 header size [*1]
741 * ---------------------------------------
743 * 7 4 packed size [*2] |
744 * 11 4 original size |
747 * 19 1 attribute | [*1] header size (X+Y+22)
748 * 20 1 level (0x00 fixed) |
751 * X +22 2 file crc (CRC-16) |
752 * X +24 Y ext-header(old style) v
753 * -------------------------------------------------
755 * : | [*2] packed size
757 * -------------------------------------------------
759 * ext-header(old style)
773 * bit6 archive bit (need to backup)
777 get_header_level0(fp, hdr, data)
788 hdr->size_field_length = 2; /* in bytes */
789 hdr->header_size = header_size = get_byte();
790 checksum = get_byte();
792 if (fread(data + COMMON_HEADER_SIZE,
793 header_size + 2 - COMMON_HEADER_SIZE, 1, fp) == 0) {
794 error("Invalid header (LHarc file ?)");
795 return FALSE; /* finish */
798 if (calc_sum(data + I_METHOD, header_size) != checksum) {
799 error("Checksum error (LHarc file?)");
803 get_bytes(hdr->method, 5, sizeof(hdr->method));
804 hdr->packed_size = get_longword();
805 hdr->original_size = get_longword();
806 hdr->unix_last_modified_stamp = generic_to_unix_stamp(get_longword());
807 hdr->attribute = get_byte(); /* MS-DOS attribute */
808 hdr->header_level = get_byte();
809 name_length = get_byte();
810 i = get_bytes(hdr->name, name_length, sizeof(hdr->name)-1);
813 /* defaults for other type */
814 hdr->unix_mode = UNIX_FILE_REGULAR | UNIX_RW_RW_RW;
818 extend_size = header_size+2 - name_length - 24;
820 if (extend_size < 0) {
821 if (extend_size == -2) {
822 /* CRC field is not given */
823 hdr->extend_type = EXTEND_GENERIC;
824 hdr->has_crc = FALSE;
829 error("Unkonwn header (lha file?)");
834 hdr->crc = get_word();
836 if (extend_size == 0)
839 hdr->extend_type = get_byte();
842 if (hdr->extend_type == EXTEND_UNIX) {
843 if (extend_size >= 11) {
844 hdr->minor_version = get_byte();
845 hdr->unix_last_modified_stamp = (time_t) get_longword();
846 hdr->unix_mode = get_word();
847 hdr->unix_uid = get_word();
848 hdr->unix_gid = get_word();
851 hdr->extend_type = EXTEND_GENERIC;
855 skip_bytes(extend_size);
857 hdr->header_size += 2;
865 * offset size field name
866 * -----------------------------------
867 * 0 1 header size [*1]
869 * -------------------------------------
871 * 7 4 skip size [*2] |
872 * 11 4 original size |
875 * 19 1 attribute (0x20 fixed) | [*1] header size (X+Y+25)
876 * 20 1 level (0x01 fixed) |
879 * X+ 22 2 file crc (CRC-16) |
882 * X+Y+25 2 next-header size v
883 * -------------------------------------------------
884 * X+Y+27 Z ext-header ^
886 * ----------------------------------- | [*2] skip size
889 * -------------------------------------------------
893 get_header_level1(fp, hdr, data)
904 hdr->size_field_length = 2; /* in bytes */
905 hdr->header_size = header_size = get_byte();
906 checksum = get_byte();
908 if (fread(data + COMMON_HEADER_SIZE,
909 header_size + 2 - COMMON_HEADER_SIZE, 1, fp) == 0) {
910 error("Invalid header (LHarc file ?)");
911 return FALSE; /* finish */
914 if (calc_sum(data + I_METHOD, header_size) != checksum) {
915 error("Checksum error (LHarc file?)");
919 get_bytes(hdr->method, 5, sizeof(hdr->method));
920 hdr->packed_size = get_longword(); /* skip size */
921 hdr->original_size = get_longword();
922 hdr->unix_last_modified_stamp = generic_to_unix_stamp(get_longword());
923 hdr->attribute = get_byte(); /* 0x20 fixed */
924 hdr->header_level = get_byte();
926 name_length = get_byte();
927 i = get_bytes(hdr->name, name_length, sizeof(hdr->name)-1);
930 /* defaults for other type */
931 hdr->unix_mode = UNIX_FILE_REGULAR | UNIX_RW_RW_RW;
936 hdr->crc = get_word();
937 hdr->extend_type = get_byte();
939 dummy = header_size+2 - name_length - I_LEVEL1_HEADER_SIZE;
941 skip_bytes(dummy); /* skip old style extend header */
943 extend_size = get_word();
944 extend_size = get_extended_header(fp, hdr, extend_size, 0);
945 if (extend_size == -1)
948 /* On level 1 header, size fields should be adjusted. */
949 /* the `packed_size' field contains the extended header size. */
950 /* the `header_size' field does not. */
951 hdr->packed_size -= extend_size;
952 hdr->header_size += extend_size + 2;
961 * offset size field name
962 * --------------------------------------------------
963 * 0 2 total header size [*1] ^
964 * ----------------------- |
966 * 7 4 packed size [*2] |
967 * 11 4 original size |
969 * 19 1 RESERVED (0x20 fixed) | [*1] total header size
970 * 20 1 level (0x02 fixed) | (X+26+(1))
971 * 21 2 file crc (CRC-16) |
973 * 24 2 next-header size |
974 * ----------------------------------- |
977 * ----------------------------------- |
978 * X +26 (1) padding v
979 * -------------------------------------------------
981 * : | [*2] packed size
983 * -------------------------------------------------
987 get_header_level2(fp, hdr, data)
997 hdr->size_field_length = 2; /* in bytes */
998 hdr->header_size = header_size = get_word();
1000 if (fread(data + COMMON_HEADER_SIZE,
1001 I_LEVEL2_HEADER_SIZE - COMMON_HEADER_SIZE, 1, fp) == 0) {
1002 error("Invalid header (LHarc file ?)");
1003 return FALSE; /* finish */
1006 get_bytes(hdr->method, 5, sizeof(hdr->method));
1007 hdr->packed_size = get_longword();
1008 hdr->original_size = get_longword();
1009 hdr->unix_last_modified_stamp = get_longword();
1010 hdr->attribute = get_byte(); /* reserved */
1011 hdr->header_level = get_byte();
1013 /* defaults for other type */
1014 hdr->unix_mode = UNIX_FILE_REGULAR | UNIX_RW_RW_RW;
1018 hdr->has_crc = TRUE;
1019 hdr->crc = get_word();
1020 hdr->extend_type = get_byte();
1021 extend_size = get_word();
1023 INITIALIZE_CRC(hcrc);
1024 hcrc = calccrc(hcrc, data, get_ptr - data);
1026 extend_size = get_extended_header(fp, hdr, extend_size, &hcrc);
1027 if (extend_size == -1)
1030 padding = header_size - I_LEVEL2_HEADER_SIZE - extend_size;
1031 while (padding--) /* padding should be 0 or 1 */
1032 hcrc = UPDATE_CRC(hcrc, fgetc(fp));
1034 if (hdr->header_crc != hcrc)
1035 error("header CRC error");
1044 * offset size field name
1045 * --------------------------------------------------
1046 * 0 2 size field length (4 fixed) ^
1048 * 7 4 packed size [*2] |
1049 * 11 4 original size |
1051 * 19 1 RESERVED (0x20 fixed) | [*1] total header size
1052 * 20 1 level (0x03 fixed) | (X+32)
1053 * 21 2 file crc (CRC-16) |
1055 * 24 4 total header size [*1] |
1056 * 28 4 next-header size |
1057 * ----------------------------------- |
1060 * -------------------------------------------------
1062 * : | [*2] packed size
1064 * -------------------------------------------------
1068 get_header_level3(fp, hdr, data)
1074 ssize_t extend_size;
1078 hdr->size_field_length = get_word();
1080 if (fread(data + COMMON_HEADER_SIZE,
1081 I_LEVEL3_HEADER_SIZE - COMMON_HEADER_SIZE, 1, fp) == 0) {
1082 error("Invalid header (LHarc file ?)");
1083 return FALSE; /* finish */
1086 get_bytes(hdr->method, 5, sizeof(hdr->method));
1087 hdr->packed_size = get_longword();
1088 hdr->original_size = get_longword();
1089 hdr->unix_last_modified_stamp = get_longword();
1090 hdr->attribute = get_byte(); /* reserved */
1091 hdr->header_level = get_byte();
1093 /* defaults for other type */
1094 hdr->unix_mode = UNIX_FILE_REGULAR | UNIX_RW_RW_RW;
1098 hdr->has_crc = TRUE;
1099 hdr->crc = get_word();
1100 hdr->extend_type = get_byte();
1101 hdr->header_size = header_size = get_longword();
1102 extend_size = get_longword();
1104 INITIALIZE_CRC(hcrc);
1105 hcrc = calccrc(hcrc, data, get_ptr - data);
1107 extend_size = get_extended_header(fp, hdr, extend_size, &hcrc);
1108 if (extend_size == -1)
1111 padding = header_size - I_LEVEL3_HEADER_SIZE - extend_size;
1112 while (padding--) /* padding should be 0 */
1113 hcrc = UPDATE_CRC(hcrc, fgetc(fp));
1115 if (hdr->header_crc != hcrc)
1116 error("header CRC error");
1126 char data[LZHEADER_STORAGE];
1128 int archive_kanji_code = CODE_SJIS;
1129 int system_kanji_code = default_system_kanji_code;
1130 char *archive_delim = "\377\\"; /* `\' is for level 0 header and
1132 char *system_delim = "//";
1133 int filename_case = NONE;
1136 memset(hdr, 0, sizeof(LzHeader));
1140 if ((end_mark = getc(fp)) == EOF || end_mark == 0) {
1141 return FALSE; /* finish */
1145 if (fread(data + 1, COMMON_HEADER_SIZE - 1, 1, fp) == 0) {
1146 error("Invalid header (LHarc file ?)");
1147 return FALSE; /* finish */
1150 switch (data[I_HEADER_LEVEL]) {
1152 if (get_header_level0(fp, hdr, data) == FALSE)
1156 if (get_header_level1(fp, hdr, data) == FALSE)
1160 if (get_header_level2(fp, hdr, data) == FALSE)
1164 if (get_header_level3(fp, hdr, data) == FALSE)
1168 error("Unknown level header (level %d)", data[I_HEADER_LEVEL]);
1172 /* filename conversion */
1173 switch (hdr->extend_type) {
1175 filename_case = convertcase ? TO_LOWER : NONE;
1182 filename_case = NONE;
1186 archive_delim = "\377/:\\";
1187 /* `\' is for level 0 header and broken archive. */
1188 system_delim = "/://";
1189 filename_case = NONE;
1193 filename_case = convertcase ? TO_LOWER : NONE;
1197 if (optional_archive_kanji_code)
1198 archive_kanji_code = optional_archive_kanji_code;
1199 if (optional_system_kanji_code)
1200 system_kanji_code = optional_system_kanji_code;
1201 if (optional_archive_delim)
1202 archive_delim = optional_archive_delim;
1203 if (optional_system_delim)
1204 system_delim = optional_system_delim;
1205 if (optional_filename_case)
1206 filename_case = optional_filename_case;
1208 /* kanji code and delimiter conversion */
1209 convert_filename(hdr->name, strlen(hdr->name), sizeof(hdr->name),
1212 archive_delim, system_delim, filename_case);
1214 if ((hdr->unix_mode & UNIX_FILE_SYMLINK) == UNIX_FILE_SYMLINK) {
1216 /* split symbolic link */
1217 p = strchr(hdr->name, '|');
1219 /* hdr->name is symbolic link name */
1220 /* hdr->realname is real name */
1222 strcpy(hdr->realname, p+1); /* ok */
1225 error("unknown symlink name \"%s\"", hdr->name);
1231 /* skip SFX header */
1236 unsigned char buffer[64 * 1024]; /* max seek size */
1240 n = fread(buffer, 1, sizeof(buffer), fp);
1242 for (p = buffer; p < buffer + n; p++) {
1243 if (! (p[I_METHOD]=='-' && p[I_METHOD+1]=='l' && p[I_METHOD+4]=='-'))
1245 /* found "-l??-" keyword (as METHOD type string) */
1247 /* level 0 or 1 header */
1248 if ((p[I_HEADER_LEVEL] == 0 || p[I_HEADER_LEVEL] == 1)
1249 && p[I_HEADER_SIZE] > 20
1250 && p[I_HEADER_CHECKSUM] == calc_sum(p+2, p[I_HEADER_SIZE])) {
1251 if (fseeko(fp, (p - buffer) - n, SEEK_CUR) == -1)
1252 fatal_error("cannot seek header");
1256 /* level 2 header */
1257 if (p[I_HEADER_LEVEL] == 2
1258 && p[I_HEADER_SIZE] >= 24
1259 && p[I_ATTRIBUTE] == 0x20) {
1260 if (fseeko(fp, (p - buffer) - n, SEEK_CUR) == -1)
1261 fatal_error("cannot seek header");
1266 if (fseeko(fp, -n, SEEK_CUR) == -1)
1267 fatal_error("cannot seek header");
1272 /* remove leading `xxxx/..' */
1274 remove_leading_dots(char *path)
1279 if (strcmp(first, "..") == 0) {
1280 warning("Removing leading `..' from member name.");
1281 return first+1; /* change to "." */
1284 if (strstr(first, "..") == 0)
1287 while (path && *path) {
1289 if (strcmp(path, "..") == 0)
1290 ptr = path = path+2;
1291 else if (strncmp(path, "../", 3) == 0)
1292 ptr = path = path+3;
1294 path = strchr(path, '/');
1296 if (path && *path == '/') {
1302 warning("Removing leading `%.*s' from member name.", ptr-first, first);
1310 copy_path_element(char *dst, const char *src, int size)
1314 if (size < 1) return 0;
1316 for (i = 0; i < size; i++) {
1320 if (dst[i] == '/') {
1331 /* remove leading "xxx/../" and "./" */
1333 remove_dots(char *newpath, char *path, size_t size)
1338 path = remove_leading_dots(path);
1341 if (path[0] == '.' && path[1] == '/')
1345 len = copy_path_element(newpath, path, size);
1355 /* When newpath is empty, set "." */
1357 strcpy(newpath, ".");
1361 return newpath - p; /* string length */
1365 init_header(name, v_stat, hdr)
1367 struct stat *v_stat;
1372 memset(hdr, 0, sizeof(LzHeader));
1374 /* the `method' member is rewrote by the encoding function.
1375 but need set for empty files */
1376 memcpy(hdr->method, LZHUFF0_METHOD, METHOD_TYPE_STORAGE);
1378 hdr->packed_size = 0;
1379 hdr->original_size = v_stat->st_size;
1380 hdr->attribute = GENERIC_ATTRIBUTE;
1381 hdr->header_level = header_level;
1383 len = remove_dots(hdr->name, name, sizeof(hdr->name));
1386 hdr->extend_type = EXTEND_UNIX;
1387 hdr->unix_last_modified_stamp = v_stat->st_mtime;
1388 /* since 00:00:00 JAN.1.1970 */
1389 #ifdef NOT_COMPATIBLE_MODE
1390 /* Please need your modification in this space. */
1393 if (S_ISREG(v_stat->st_mode))
1394 hdr->unix_mode = hdr->unix_mode | UNIX_FILE_REGULAR;
1395 if (S_ISDIR(v_stat->st_mode))
1396 hdr->unix_mode = hdr->unix_mode | UNIX_FILE_DIRECTORY;
1397 if (S_ISLNK(v_stat->st_mode))
1398 hdr->unix_mode = hdr->unix_mode | UNIX_FILE_SYMLINK;
1399 if (v_stat->st_mode & S_IRUSR)
1400 hdr->unix_mode = hdr->unix_mode | UNIX_OWNER_READ_PERM;
1401 if (v_stat->st_mode & S_IRGRP)
1402 hdr->unix_mode = hdr->unix_mode | UNIX_GROUP_READ_PERM;
1403 if (v_stat->st_mode & S_IROTH)
1404 hdr->unix_mode = hdr->unix_mode | UNIX_OTHER_READ_PERM;
1405 if (v_stat->st_mode & S_IWUSR)
1406 hdr->unix_mode = hdr->unix_mode | UNIX_OWNER_WRITE_PERM;
1407 if (v_stat->st_mode & S_IWGRP)
1408 hdr->unix_mode = hdr->unix_mode | UNIX_GROUP_WRITE_PERM;
1409 if (v_stat->st_mode & S_IWOTH)
1410 hdr->unix_mode = hdr->unix_mode | UNIX_OTHER_WRITE_PERM;
1411 if (v_stat->st_mode & S_IXUSR)
1412 hdr->unix_mode = hdr->unix_mode | UNIX_OWNER_EXEC_PERM;
1413 if (v_stat->st_mode & S_IXGRP)
1414 hdr->unix_mode = hdr->unix_mode | UNIX_GROUP_EXEC_PERM;
1415 if (v_stat->st_mode & S_IXOTH)
1416 hdr->unix_mode = hdr->unix_mode | UNIX_OTHER_EXEC_PERM;
1417 if (v_stat->st_mode & S_ISUID)
1418 hdr->unix_mode = hdr->unix_mode | UNIX_SETUID;
1419 if (v_stat->st_mode & S_ISGID)
1420 hdr->unix_mode = hdr->unix_mode | UNIX_SETGID;
1421 #endif /* __DJGPP__ */
1423 hdr->unix_mode = v_stat->st_mode;
1426 hdr->unix_uid = v_stat->st_uid;
1427 hdr->unix_gid = v_stat->st_gid;
1429 #if INCLUDE_OWNER_NAME_IN_HEADER
1432 struct passwd *ent = getpwuid(hdr->unix_uid);
1435 strncpy(hdr->user, ent->pw_name, sizeof(hdr->user));
1436 if (hdr->user[sizeof(hdr->user)-1])
1437 hdr->user[sizeof(hdr->user)-1] = 0;
1443 struct group *ent = getgrgid(hdr->unix_gid);
1446 strncpy(hdr->group, ent->gr_name, sizeof(hdr->group));
1447 if (hdr->group[sizeof(hdr->group)-1])
1448 hdr->group[sizeof(hdr->group)-1] = 0;
1452 #endif /* INCLUDE_OWNER_NAME_IN_HEADER */
1453 if (is_directory(v_stat)) {
1454 memcpy(hdr->method, LZHDIRS_METHOD, METHOD_TYPE_STORAGE);
1455 hdr->attribute = GENERIC_DIRECTORY_ATTRIBUTE;
1456 hdr->original_size = 0;
1457 if (len > 0 && hdr->name[len - 1] != '/') {
1458 if (len < sizeof(hdr->name)-1)
1459 strcpy(&hdr->name[len++], "/"); /* ok */
1461 warning("the length of dirname \"%s\" is too long.",
1467 if (is_symlink(v_stat)) {
1468 memcpy(hdr->method, LZHDIRS_METHOD, METHOD_TYPE_STORAGE);
1469 hdr->attribute = GENERIC_DIRECTORY_ATTRIBUTE;
1470 hdr->original_size = 0;
1471 readlink(name, hdr->realname, sizeof(hdr->realname));
1477 write_unix_info(hdr)
1480 /* UNIX specific informations */
1482 put_word(5); /* size */
1483 put_byte(0x50); /* permission */
1484 put_word(hdr->unix_mode);
1486 put_word(7); /* size */
1487 put_byte(0x51); /* gid and uid */
1488 put_word(hdr->unix_gid);
1489 put_word(hdr->unix_uid);
1491 if (hdr->group[0]) {
1492 int len = strlen(hdr->group);
1493 put_word(len + 3); /* size */
1494 put_byte(0x52); /* group name */
1495 put_bytes(hdr->group, len);
1499 int len = strlen(hdr->user);
1500 put_word(len + 3); /* size */
1501 put_byte(0x53); /* user name */
1502 put_bytes(hdr->user, len);
1505 if (hdr->header_level == 1) {
1506 put_word(7); /* size */
1507 put_byte(0x54); /* time stamp */
1508 put_longword(hdr->unix_last_modified_stamp);
1513 write_header_level0(data, hdr, pathname)
1515 char *data, *pathname;
1522 memset(data, 0, LZHEADER_STORAGE);
1524 put_byte(0x00); /* header size */
1525 put_byte(0x00); /* check sum */
1526 put_bytes(hdr->method, 5);
1527 put_longword(hdr->packed_size);
1528 put_longword(hdr->original_size);
1529 put_longword(unix_to_generic_stamp(hdr->unix_last_modified_stamp));
1530 put_byte(hdr->attribute);
1531 put_byte(hdr->header_level); /* level 0 */
1533 /* write pathname (level 0 header contains the directory part) */
1534 name_length = strlen(pathname);
1536 limit = 255 - I_GENERIC_HEADER_SIZE + 2;
1538 limit = 255 - I_LEVEL0_HEADER_SIZE + 2;
1540 if (name_length > limit) {
1541 warning("the length of pathname \"%s\" is too long.", pathname);
1542 name_length = limit;
1544 put_byte(name_length);
1545 put_bytes(pathname, name_length);
1548 if (generic_format) {
1549 header_size = I_GENERIC_HEADER_SIZE + name_length - 2;
1550 data[I_HEADER_SIZE] = header_size;
1551 data[I_HEADER_CHECKSUM] = calc_sum(data + I_METHOD, header_size);
1553 /* write old-style extend header */
1554 put_byte(EXTEND_UNIX);
1555 put_byte(CURRENT_UNIX_MINOR_VERSION);
1556 put_longword(hdr->unix_last_modified_stamp);
1557 put_word(hdr->unix_mode);
1558 put_word(hdr->unix_uid);
1559 put_word(hdr->unix_gid);
1561 /* size of extended header is 12 */
1562 header_size = I_LEVEL0_HEADER_SIZE + name_length - 2;
1563 data[I_HEADER_SIZE] = header_size;
1564 data[I_HEADER_CHECKSUM] = calc_sum(data + I_METHOD, header_size);
1567 return header_size + 2;
1571 write_header_level1(data, hdr, pathname)
1573 char *data, *pathname;
1575 int name_length, dir_length, limit;
1576 char *basename, *dirname;
1578 char *extend_header_top;
1579 size_t extend_header_size;
1581 basename = strrchr(pathname, LHA_PATHSEP);
1584 name_length = strlen(basename);
1586 dir_length = basename - dirname;
1589 basename = pathname;
1590 name_length = strlen(basename);
1596 memset(data, 0, LZHEADER_STORAGE);
1598 put_byte(0x00); /* header size */
1599 put_byte(0x00); /* check sum */
1600 put_bytes(hdr->method, 5);
1601 put_longword(hdr->packed_size);
1602 put_longword(hdr->original_size);
1603 put_longword(unix_to_generic_stamp(hdr->unix_last_modified_stamp));
1605 put_byte(hdr->header_level); /* level 1 */
1607 /* level 1 header: write filename (basename only) */
1608 limit = 255 - I_LEVEL1_HEADER_SIZE + 2;
1609 if (name_length > limit) {
1610 put_byte(0); /* name length */
1613 put_byte(name_length);
1614 put_bytes(basename, name_length);
1622 put_byte(EXTEND_UNIX);
1624 /* write extend header from here. */
1626 extend_header_top = put_ptr+2; /* +2 for the field `next header size' */
1627 header_size = extend_header_top - data - 2;
1629 /* write filename and dirname */
1631 if (name_length > limit) {
1632 put_word(name_length + 3); /* size */
1633 put_byte(0x01); /* filename */
1634 put_bytes(basename, name_length);
1637 if (dir_length > 0) {
1638 put_word(dir_length + 3); /* size */
1639 put_byte(0x02); /* dirname */
1640 put_bytes(dirname, dir_length);
1643 if (!generic_format)
1644 write_unix_info(hdr);
1646 put_word(0x0000); /* next header size */
1648 extend_header_size = put_ptr - extend_header_top;
1649 /* On level 1 header, the packed size field is contains the ext-header */
1650 hdr->packed_size += put_ptr - extend_header_top;
1652 /* put `skip size' */
1653 setup_put(data + I_PACKED_SIZE);
1654 put_longword(hdr->packed_size);
1656 data[I_HEADER_SIZE] = header_size;
1657 data[I_HEADER_CHECKSUM] = calc_sum(data + I_METHOD, header_size);
1659 return header_size + extend_header_size + 2;
1663 write_header_level2(data, hdr, pathname)
1665 char *data, *pathname;
1667 int name_length, dir_length;
1668 char *basename, *dirname;
1670 char *extend_header_top;
1671 char *headercrc_ptr;
1674 basename = strrchr(pathname, LHA_PATHSEP);
1677 name_length = strlen(basename);
1679 dir_length = basename - dirname;
1682 basename = pathname;
1683 name_length = strlen(basename);
1689 memset(data, 0, LZHEADER_STORAGE);
1691 put_word(0x0000); /* header size */
1692 put_bytes(hdr->method, 5);
1693 put_longword(hdr->packed_size);
1694 put_longword(hdr->original_size);
1695 put_longword(hdr->unix_last_modified_stamp);
1697 put_byte(hdr->header_level); /* level 2 */
1704 put_byte(EXTEND_UNIX);
1706 /* write extend header from here. */
1708 extend_header_top = put_ptr+2; /* +2 for the field `next header size' */
1710 /* write common header */
1713 headercrc_ptr = put_ptr;
1714 put_word(0x0000); /* header CRC */
1716 /* write filename and dirname */
1717 /* must have this header, even if the name_length is 0. */
1718 put_word(name_length + 3); /* size */
1719 put_byte(0x01); /* filename */
1720 put_bytes(basename, name_length);
1722 if (dir_length > 0) {
1723 put_word(dir_length + 3); /* size */
1724 put_byte(0x02); /* dirname */
1725 put_bytes(dirname, dir_length);
1728 if (!generic_format)
1729 write_unix_info(hdr);
1731 put_word(0x0000); /* next header size */
1733 header_size = put_ptr - data;
1734 if ((header_size & 0xff) == 0) {
1735 /* cannot put zero at the first byte on level 2 header. */
1736 /* adjust header size. */
1737 put_byte(0); /* padding */
1741 /* put header size */
1742 setup_put(data + I_HEADER_SIZE);
1743 put_word(header_size);
1745 /* put header CRC in extended header */
1746 INITIALIZE_CRC(hcrc);
1747 hcrc = calccrc(hcrc, data, (unsigned int) header_size);
1748 setup_put(headercrc_ptr);
1755 write_header(fp, hdr)
1760 char data[LZHEADER_STORAGE];
1762 int archive_kanji_code = CODE_SJIS;
1763 int system_kanji_code = default_system_kanji_code;
1764 char *archive_delim = "\377";
1765 char *system_delim = "/";
1766 int filename_case = NONE;
1767 char pathname[FILENAME_LENGTH];
1769 if (optional_archive_kanji_code)
1770 archive_kanji_code = optional_archive_kanji_code;
1771 if (optional_system_kanji_code)
1772 system_kanji_code = optional_system_kanji_code;
1774 if (generic_format && convertcase)
1775 filename_case = TO_UPPER;
1777 if (hdr->header_level == 0) {
1778 archive_delim = "\\";
1781 if ((hdr->unix_mode & UNIX_FILE_SYMLINK) == UNIX_FILE_SYMLINK) {
1783 p = strchr(hdr->name, '|');
1785 error("symlink name \"%s\" contains '|' char. change it into '_'",
1789 if (xsnprintf(pathname, sizeof(pathname),
1790 "%s|%s", hdr->name, hdr->realname) == -1)
1791 error("file name is too long (%s -> %s)", hdr->name, hdr->realname);
1794 strncpy(pathname, hdr->name, sizeof(pathname));
1795 pathname[sizeof(pathname)-1] = 0;
1798 convert_filename(pathname, strlen(pathname), sizeof(pathname),
1801 system_delim, archive_delim, filename_case);
1803 switch (hdr->header_level) {
1805 header_size = write_header_level0(data, hdr, pathname);
1808 header_size = write_header_level1(data, hdr, pathname);
1811 header_size = write_header_level2(data, hdr, pathname);
1814 error("Unknown level header (level %d)", hdr->header_level);
1818 if (fwrite(data, header_size, 1, fp) == 0)
1819 fatal_error("Cannot write to temporary file");
1822 #if MULTIBYTE_FILENAME
1824 #if defined(__APPLE__) /* Added by Hiroto Sakai */
1826 #include <CoreFoundation/CFString.h>
1827 #include <CoreFoundation/CFStringEncodingExt.h>
1829 /* this is not need for Mac OS X v 10.2 later */
1831 kCFStringEncodingAllowLossyConversion = 1,
1832 kCFStringEncodingBasicDirectionLeftToRight = (1 << 1),
1833 kCFStringEncodingBasicDirectionRightToLeft = (1 << 2),
1834 kCFStringEncodingSubstituteCombinings = (1 << 3),
1835 kCFStringEncodingComposeCombinings = (1 << 4),
1836 kCFStringEncodingIgnoreCombinings = (1 << 5),
1837 kCFStringEncodingUseCanonical = (1 << 6),
1838 kCFStringEncodingUseHFSPlusCanonical = (1 << 7),
1839 kCFStringEncodingPrependBOM = (1 << 8),
1840 kCFStringEncodingDisableCorporateArea = (1 << 9),
1841 kCFStringEncodingASCIICompatibleConversion = (1 << 10),
1845 ConvertEncodingToUTF8(const char* inCStr,
1846 char* outUTF8Buffer,
1847 int outUTF8BufferLength,
1848 unsigned long scriptEncoding,
1849 unsigned long flags)
1851 unsigned long unicodeChars;
1852 unsigned long srcCharsUsed;
1853 unsigned long usedByteLen = 0;
1854 UniChar uniStr[512];
1855 unsigned long cfResult;
1857 cfResult = CFStringEncodingBytesToUnicode(scriptEncoding,
1865 if (cfResult == 0) {
1866 cfResult = CFStringEncodingUnicodeToBytes(kCFStringEncodingUTF8,
1871 (char*)outUTF8Buffer,
1872 outUTF8BufferLength - 1,
1874 outUTF8Buffer[usedByteLen] = '\0';
1881 ConvertUTF8ToEncoding(const char* inUTF8Buf,
1882 int inUTF8BufLength,
1883 char* outCStrBuffer,
1884 int outCStrBufferLength,
1885 unsigned long scriptEncoding,
1886 unsigned long flags)
1888 unsigned long unicodeChars;
1889 unsigned long srcCharsUsed;
1890 unsigned long usedByteLen = 0;
1891 UniChar uniStr[256];
1892 unsigned long cfResult;
1894 cfResult = CFStringEncodingBytesToUnicode(kCFStringEncodingUTF8,
1902 if (cfResult == 0) {
1903 cfResult = CFStringEncodingUnicodeToBytes(scriptEncoding,
1908 (char*)outCStrBuffer,
1909 outCStrBufferLength - 1,
1911 outCStrBuffer[usedByteLen] = '\0';
1921 ConvertEncodingByIconv(const char *src, char *dst, int dstsize,
1922 const char *srcEnc, const char *dstEnc)
1925 static char szTmpBuf[2048];
1931 dst_p = &szTmpBuf[0];
1932 iLen = (size_t)sizeof(szTmpBuf)-1;
1933 src_p = (char *)src;
1934 sLen = (size_t)strlen(src);
1935 memset(szTmpBuf, 0, sizeof(szTmpBuf));
1936 memset(dst, 0, dstsize);
1938 ic = iconv_open(dstEnc, srcEnc);
1939 if (ic == (iconv_t)-1) {
1940 error("iconv_open() failure: %s", strerror(errno));
1944 if (iconv(ic, &src_p, &sLen, &dst_p, &iLen) == (size_t)-1) {
1945 error("iconv() failure: %s", strerror(errno));
1950 strncpy(dst, szTmpBuf, dstsize);
1956 #endif /* defined(__APPLE__) */
1959 sjis_to_utf8(char *dst, const char *src, size_t dstsize)
1961 #if defined(__APPLE__)
1963 if (ConvertEncodingToUTF8(src, dst, dstsize,
1964 kCFStringEncodingDOSJapanese,
1965 kCFStringEncodingUseHFSPlusCanonical) == 0)
1968 if (ConvertEncodingByIconv(src, dst, dstsize, "SJIS", "UTF-8") != -1)
1971 error("not support utf-8 conversion");
1974 if (dstsize < 1) return dst;
1976 return strncpy(dst, src, dstsize-1);
1980 utf8_to_sjis(char *dst, const char *src, size_t dstsize)
1982 #if defined(__APPLE__)
1986 srclen = strlen(src);
1987 if (ConvertUTF8ToEncoding(src, srclen, dst, dstsize,
1988 kCFStringEncodingDOSJapanese,
1989 kCFStringEncodingUseHFSPlusCanonical) == 0)
1992 if (ConvertEncodingByIconv(src, dst, dstsize, "UTF-8", "SJIS") != -1)
1995 error("not support utf-8 conversion");
1998 if (dstsize < 1) return dst;
2000 return strncpy(dst, src, dstsize-1);
2004 * SJIS <-> EUC ÊÑ´¹´Ø¿ô
2005 * ¡ÖÆüËܸì¾ðÊó½èÍý¡× ¥½¥Õ¥È¥Ð¥ó¥¯(³ô)
2006 * ¤è¤êÈ´¿è(by Koji Arai)
2009 euc2sjis(int *p1, int *p2)
2011 unsigned char c1 = *p1 & 0x7f;
2012 unsigned char c2 = *p2 & 0x7f;
2013 int rowoff = c1 < 0x5f ? 0x70 : 0xb0;
2014 int celoff = c1 % 2 ? (c2 > 0x5f ? 0x20 : 0x1f) : 0x7e;
2015 *p1 = ((c1 + 1) >> 1) + rowoff;
2016 *p2 += celoff - 0x80;
2020 sjis2euc(int *p1, int *p2)
2022 unsigned char c1 = *p1;
2023 unsigned char c2 = *p2;
2024 int adjust = c2 < 0x9f;
2025 int rowoff = c1 < 0xa0 ? 0x70 : 0xb0;
2026 int celoff = adjust ? (c2 > 0x7f ? 0x20 : 0x1f) : 0x7e;
2027 *p1 = ((c1 - rowoff) << 1) - adjust;
2038 case '0': case '1': case '2': case '3': case '4':
2039 case '5': case '6': case '7': case '8': case '9':
2042 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
2043 return c - 'a' + 10;
2045 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
2046 return c - 'A' + 10;
2056 case 0: case 1: case 2: case 3: case 4:
2057 case 5: case 6: case 7: case 8: case 9:
2060 case 10: case 11: case 12: case 13: case 14: case 15:
2061 return c + 'a' - 10;
2069 cap_to_sjis(char *dst, const char *src, size_t dstsize)
2072 size_t len = strlen(src);
2075 for (i = j = 0; i < len && i < dstsize; i++) {
2076 if (src[i] != ':') {
2082 a = hex2int((unsigned char)src[i]);
2083 b = hex2int((unsigned char)src[i+1]);
2085 if (a == -1 || b == -1) {
2088 strncpy(dst+j, src+i, dstsize-j);
2095 dst[j++] = a * 16 + b;
2102 sjis_to_cap(char *dst, const char *src, size_t dstsize)
2105 size_t len = strlen(src);
2108 for (i = j = 0; i < len && i < dstsize; i++) {
2109 if (src[i] == ':') {
2110 strncpy(dst+j, ":3a", dstsize-j);
2115 if (isprint(src[i])) {
2120 if (j + 3 >= dstsize) {
2125 a = int2hex((unsigned char)src[i] / 16);
2126 b = int2hex((unsigned char)src[i] % 16);
2135 #endif /* MULTIBYTE_FILENAME */