1 /* ------------------------------------------------------------------------ */
3 /* lhext.c -- LHarc extract */
5 /* Copyright (C) MCMLXXXIX Yooichi.Tagawa */
6 /* Modified Nobutaka Watazaki */
8 /* Ver. 0.00 Original 1988.05.23 Y.Tagawa */
9 /* Ver. 1.00 Fixed 1989.09.22 Y.Tagawa */
10 /* Ver. 0.03 LHa for UNIX 1991.12.17 M.Oki */
11 /* Ver. 1.12 LHa for UNIX 1993.10.01 N.Watazaki */
12 /* Ver. 1.13b Symbolic Link Update Bug Fix 1994.06.21 N.Watazaki */
13 /* Ver. 1.14 Source All chagned 1995.01.14 N.Watazaki */
14 /* Ver. 1.14e bugfix 1999.04.30 T.Okamoto */
15 /* ------------------------------------------------------------------------ */
17 /* ------------------------------------------------------------------------ */
18 static int skip_flg = FALSE; /* FALSE..No Skip , TRUE..Skip */
19 static char *methods[] =
21 LZHUFF0_METHOD, LZHUFF1_METHOD, LZHUFF2_METHOD, LZHUFF3_METHOD,
22 LZHUFF4_METHOD, LZHUFF5_METHOD, LZHUFF6_METHOD, LZHUFF7_METHOD,
23 LARC_METHOD, LARC5_METHOD, LARC4_METHOD,
28 /* ------------------------------------------------------------------------ */
36 if (stat(name, &stbuf) >= 0) {
37 if (!is_regularfile(&stbuf)) {
38 error("\"%s\" already exists (not a file)", name);
43 printf("EXTRACT %s but file is exist.\n", name);
50 switch (inquire("OverWrite ?(Yes/[No]/All/Skip)", name, "YyNnAaSs\n")) {
70 printf("EXTRACT %s\n", name);
75 /* ------------------------------------------------------------------------ */
77 make_parent_path(name)
80 char path[FILENAME_LENGTH];
84 /* make parent directory name into PATH for recursive call */
86 for (p = path + strlen(path); p > path; p--)
93 message("invalid path name \"%s\"", name);
94 return FALSE; /* no more parent. */
97 if (GETSTAT(path, &stbuf) >= 0) {
98 if (is_directory(&stbuf))
103 message("Making directory \"%s\".", path);
105 #if defined __MINGW32__
106 if (mkdir(path) >= 0)
109 if (mkdir(path, 0777) >= 0) /* try */
110 return TRUE; /* successful done. */
113 if (!make_parent_path(path))
116 #if defined __MINGW32__
117 if (mkdir(path) < 0) { /* try again */
118 error("Cannot make directory \"%s\"", path);
122 if (mkdir(path, 0777) < 0) { /* try again */
123 error("Cannot make directory \"%s\"", path);
131 /* ------------------------------------------------------------------------ */
133 open_with_make_path(name)
138 if ((fp = fopen(name, WRITE_BINARY)) == NULL) {
139 if (!make_parent_path(name) ||
140 (fp = fopen(name, WRITE_BINARY)) == NULL)
141 error("Cannot extract a file \"%s\"", name);
146 /* ------------------------------------------------------------------------ */
148 adjust_info(name, hdr)
152 struct utimbuf utimebuf;
154 /* adjust file stamp */
155 utimebuf.actime = utimebuf.modtime = hdr->unix_last_modified_stamp;
157 if ((hdr->unix_mode & UNIX_FILE_TYPEMASK) != UNIX_FILE_SYMLINK)
158 utime(name, &utimebuf);
160 if (hdr->extend_type == EXTEND_UNIX
161 || hdr->extend_type == EXTEND_OS68K
162 || hdr->extend_type == EXTEND_XOSK) {
163 #ifdef NOT_COMPATIBLE_MODE
164 Please need your modification in this space.
166 if ((hdr->unix_mode & UNIX_FILE_TYPEMASK) != UNIX_FILE_SYMLINK)
167 chmod(name, hdr->unix_mode);
170 uid_t uid = hdr->unix_uid;
171 gid_t gid = hdr->unix_gid;
173 #if HAVE_GETPWNAM && HAVE_GETGRNAM
175 struct passwd *ent = getpwnam(hdr->user);
176 if (ent) uid = ent->pw_uid;
179 struct group *ent = getgrnam(hdr->group);
180 if (ent) gid = ent->gr_gid;
185 if ((hdr->unix_mode & UNIX_FILE_TYPEMASK) == UNIX_FILE_SYMLINK)
186 lchown(name, uid, gid);
188 #endif /* HAVE_LCHWON */
189 chown(name, uid, gid);
194 /* ------------------------------------------------------------------------ */
196 extract_one(afp, hdr)
197 FILE *afp; /* archive file */
200 FILE *fp; /* output file */
202 char name[FILENAME_LENGTH];
205 boolean save_quiet, save_verbose, up_flag;
206 char *q = hdr->name, c;
208 if (ignore_directory && strrchr(hdr->name, '/')) {
209 q = (char *) strrchr(hdr->name, '/') + 1;
215 * if OSK then strip device name
217 if (hdr->extend_type == EXTEND_OS68K
218 || hdr->extend_type == EXTEND_XOSK) {
221 while (c && c != '/');
223 q = "."; /* if device name only */
228 if (extract_directory)
229 xsnprintf(name, sizeof(name), "%s/%s", extract_directory, q);
234 /* LZHDIRS_METHOD¤ò»ý¤Ä¥Ø¥Ã¥À¤ò¥Á¥§¥Ã¥¯¤¹¤ë */
235 /* 1999.4.30 t.okamoto */
236 for (method = 0;; method++) {
237 if (methods[method] == NULL) {
238 error("Unknown method \"%.*s\"; \"%s\" will be skiped ...",
239 5, hdr->method, name);
242 if (memcmp(hdr->method, methods[method], 5) == 0)
246 if ((hdr->unix_mode & UNIX_FILE_TYPEMASK) == UNIX_FILE_REGULAR
247 && method != LZHDIRS_METHOD_NUM) {
250 for (method = 0;; method++) {
251 if (methods[method] == NULL) {
252 error("Unknown method \"%.*s\"; \"%s\" will be skiped ...",
253 5, hdr->method, name);
256 if (memcmp(hdr->method, methods[method], 5) == 0)
261 reading_filename = archive_name;
262 writing_filename = name;
263 if (output_to_stdout || verify_mode) {
265 printf("%s %s\n", verify_mode ? "VERIFY" : "EXTRACT", name);
267 int i = hdr->packed_size;
275 save_verbose = verbose;
276 if (!quiet && output_to_stdout) {
277 printf("::::::::\n%s\n::::::::\n", name);
281 else if (verify_mode) {
290 old_mode = setmode(fileno(stdout), O_BINARY);
294 (afp, stdout, hdr->original_size, hdr->packed_size, name, method);
297 setmode(fileno(stdout), old_mode);
301 verbose = save_verbose;
304 if (skip_flg == FALSE) {
305 up_flag = inquire_extract(name);
306 if (up_flag == FALSE && force == FALSE) {
311 if (skip_flg == TRUE) { /* if skip_flg */
312 if (stat(name, &stbuf) == 0 && force != TRUE) {
313 if (stbuf.st_mtime >= hdr->unix_last_modified_stamp) {
315 printf("%s : Skipped...\n", name);
322 int i = hdr->packed_size;
329 signal(SIGINT, interrupt);
331 signal(SIGHUP, interrupt);
335 remove_extracting_file_when_interrupt = TRUE;
337 if ((fp = open_with_make_path(name)) != NULL) {
339 (afp, fp, hdr->original_size, hdr->packed_size, name, method);
342 remove_extracting_file_when_interrupt = FALSE;
343 signal(SIGINT, SIG_DFL);
345 signal(SIGHUP, SIG_DFL);
351 if (hdr->has_crc && crc != hdr->crc)
352 error("CRC error: \"%s\"", name);
354 else if ((hdr->unix_mode & UNIX_FILE_TYPEMASK) == UNIX_FILE_DIRECTORY
355 || (hdr->unix_mode & UNIX_FILE_TYPEMASK) == UNIX_FILE_SYMLINK
356 || method == LZHDIRS_METHOD_NUM) {
357 /* ¢¬¤³¤ì¤Ç¡¢Symbolic Link ¤Ï¡¢Âç¾æÉפ«¡© */
358 if (!ignore_directory && !verify_mode) {
361 printf("EXTRACT %s (directory)\n", name);
364 /* NAME has trailing SLASH '/', (^_^) */
365 if ((hdr->unix_mode & UNIX_FILE_TYPEMASK) == UNIX_FILE_SYMLINK) {
369 if (skip_flg == FALSE) {
370 up_flag = inquire_extract(name);
371 if (up_flag == FALSE && force == FALSE) {
375 if (GETSTAT(name, &stbuf) == 0 && force != TRUE) {
376 if (stbuf.st_mtime >= hdr->unix_last_modified_stamp) {
378 printf("%s : Skipped...\n", name);
385 make_parent_path(name);
386 l_code = symlink(hdr->realname, name);
389 warning("Can't make Symbolic Link \"%s\" -> \"%s\"",
390 hdr->realname, name);
393 message("Symbolic Link %s -> %s",
394 hdr->realname, name);
397 warning("Can't make Symbolic Link %s -> %s",
398 hdr->realname, name);
401 } else { /* make directory */
402 if (!output_to_stdout && !make_parent_path(name))
408 if (force) /* force extract */
409 goto extract_regular;
411 error("Unknown file type: \"%s\". use `f' option to force extract.", name);
414 if (!output_to_stdout)
415 adjust_info(name, hdr);
418 /* ------------------------------------------------------------------------ */
419 /* EXTRACT COMMAND MAIN */
420 /* ------------------------------------------------------------------------ */
428 /* open archive file */
429 if ((afp = open_old_archive()) == NULL)
430 fatal_error("Cannot open archive file \"%s\"", archive_name);
432 if (archive_is_msdos_sfx1(archive_name))
433 skip_msdos_sfx1_code(afp);
435 /* extract each files */
436 while (get_header(afp, &hdr)) {
437 if (need_file(hdr.name)) {
439 extract_one(afp, &hdr);
440 /* when error occurred in extract_one(), should adjust
441 point of file stream */
443 fseek(afp, pos + hdr.packed_size, SEEK_SET);
445 /* FIXME: assume that the extract_one() has read
446 packed_size bytes from stdin. */
448 while (i--) fgetc(afp);
452 fseek(afp, hdr.packed_size, SEEK_CUR);
454 int i = hdr.packed_size;
461 /* close archive file */
467 /* Local Variables: */
471 /* vi: set tabstop=4: */