1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /* Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
3 | *
|
---|
4 | * FIXME:
|
---|
5 | * In privileged mode if uname and gname map to a uid and gid then use the
|
---|
6 | * mapped value instead of the uid/gid values in tar header
|
---|
7 | *
|
---|
8 | * References:
|
---|
9 | * GNU tar and star man pages,
|
---|
10 | * Opengroup's ustar interchange format,
|
---|
11 | * http://www.opengroup.org/onlinepubs/007904975/utilities/pax.html
|
---|
12 | */
|
---|
13 |
|
---|
14 | #include "libbb.h"
|
---|
15 | #include "bb_archive.h"
|
---|
16 |
|
---|
17 | typedef uint32_t aliased_uint32_t FIX_ALIASING;
|
---|
18 | typedef off_t aliased_off_t FIX_ALIASING;
|
---|
19 |
|
---|
20 |
|
---|
21 | const char* FAST_FUNC strip_unsafe_prefix(const char *str)
|
---|
22 | {
|
---|
23 | const char *cp = str;
|
---|
24 | while (1) {
|
---|
25 | char *cp2;
|
---|
26 | if (*cp == '/') {
|
---|
27 | cp++;
|
---|
28 | continue;
|
---|
29 | }
|
---|
30 | if (strncmp(cp, "/../"+1, 3) == 0) {
|
---|
31 | cp += 3;
|
---|
32 | continue;
|
---|
33 | }
|
---|
34 | cp2 = strstr(cp, "/../");
|
---|
35 | if (!cp2)
|
---|
36 | break;
|
---|
37 | cp = cp2 + 4;
|
---|
38 | }
|
---|
39 | if (cp != str) {
|
---|
40 | static smallint warned = 0;
|
---|
41 | if (!warned) {
|
---|
42 | warned = 1;
|
---|
43 | bb_error_msg("removing leading '%.*s' from member names",
|
---|
44 | (int)(cp - str), str);
|
---|
45 | }
|
---|
46 | }
|
---|
47 | return cp;
|
---|
48 | }
|
---|
49 |
|
---|
50 | /* NB: _DESTROYS_ str[len] character! */
|
---|
51 | static unsigned long long getOctal(char *str, int len)
|
---|
52 | {
|
---|
53 | unsigned long long v;
|
---|
54 | char *end;
|
---|
55 | /* NB: leading spaces are allowed. Using strtoull to handle that.
|
---|
56 | * The downside is that we accept e.g. "-123" too :(
|
---|
57 | */
|
---|
58 | str[len] = '\0';
|
---|
59 | v = strtoull(str, &end, 8);
|
---|
60 | /* std: "Each numeric field is terminated by one or more
|
---|
61 | * <space> or NUL characters". We must support ' '! */
|
---|
62 | if (*end != '\0' && *end != ' ') {
|
---|
63 | int8_t first = str[0];
|
---|
64 | if (!(first & 0x80))
|
---|
65 | bb_error_msg_and_die("corrupted octal value in tar header");
|
---|
66 | /*
|
---|
67 | * GNU tar uses "base-256 encoding" for very large numbers.
|
---|
68 | * Encoding is binary, with highest bit always set as a marker
|
---|
69 | * and sign in next-highest bit:
|
---|
70 | * 80 00 .. 00 - zero
|
---|
71 | * bf ff .. ff - largest positive number
|
---|
72 | * ff ff .. ff - minus 1
|
---|
73 | * c0 00 .. 00 - smallest negative number
|
---|
74 | *
|
---|
75 | * Example of tar file with 8914993153 (0x213600001) byte file.
|
---|
76 | * Field starts at offset 7c:
|
---|
77 | * 00070 30 30 30 00 30 30 30 30 30 30 30 00 80 00 00 00 |000.0000000.....|
|
---|
78 | * 00080 00 00 00 02 13 60 00 01 31 31 31 32 30 33 33 36 |.....`..11120336|
|
---|
79 | *
|
---|
80 | * NB: tarballs with NEGATIVE unix times encoded that way were seen!
|
---|
81 | */
|
---|
82 | /* Sign-extend 7bit 'first' to 64bit 'v' (that is, using 6th bit as sign): */
|
---|
83 | first <<= 1;
|
---|
84 | first >>= 1; /* now 7th bit = 6th bit */
|
---|
85 | v = first; /* sign-extend 8 bits to 64 */
|
---|
86 | while (--len != 0)
|
---|
87 | v = (v << 8) + (uint8_t) *++str;
|
---|
88 | }
|
---|
89 | return v;
|
---|
90 | }
|
---|
91 | #define GET_OCTAL(a) getOctal((a), sizeof(a))
|
---|
92 |
|
---|
93 | /* "global" is 0 or 1 */
|
---|
94 | static void process_pax_hdr(archive_handle_t *archive_handle, unsigned sz, int global)
|
---|
95 | {
|
---|
96 | char *buf, *p;
|
---|
97 | unsigned blk_sz;
|
---|
98 |
|
---|
99 | blk_sz = (sz + 511) & (~511);
|
---|
100 | p = buf = xmalloc(blk_sz + 1);
|
---|
101 | xread(archive_handle->src_fd, buf, blk_sz);
|
---|
102 | archive_handle->offset += blk_sz;
|
---|
103 |
|
---|
104 | /* prevent bb_strtou from running off the buffer */
|
---|
105 | buf[sz] = '\0';
|
---|
106 |
|
---|
107 | while (sz != 0) {
|
---|
108 | char *end, *value;
|
---|
109 | unsigned len;
|
---|
110 |
|
---|
111 | /* Every record has this format: "LEN NAME=VALUE\n" */
|
---|
112 | len = bb_strtou(p, &end, 10);
|
---|
113 | /* expect errno to be EINVAL, because the character
|
---|
114 | * following the digits should be a space
|
---|
115 | */
|
---|
116 | p += len;
|
---|
117 | sz -= len;
|
---|
118 | if ((int)sz < 0
|
---|
119 | || len == 0
|
---|
120 | || errno != EINVAL
|
---|
121 | || *end != ' '
|
---|
122 | ) {
|
---|
123 | bb_error_msg("malformed extended header, skipped");
|
---|
124 | // More verbose version:
|
---|
125 | //bb_error_msg("malformed extended header at %"OFF_FMT"d, skipped",
|
---|
126 | // archive_handle->offset - (sz + len));
|
---|
127 | break;
|
---|
128 | }
|
---|
129 | /* overwrite the terminating newline with NUL
|
---|
130 | * (we do not bother to check that it *was* a newline)
|
---|
131 | */
|
---|
132 | p[-1] = '\0';
|
---|
133 | value = end + 1;
|
---|
134 |
|
---|
135 | #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
|
---|
136 | if (!global && strncmp(value, "path=", sizeof("path=") - 1) == 0) {
|
---|
137 | value += sizeof("path=") - 1;
|
---|
138 | free(archive_handle->tar__longname);
|
---|
139 | archive_handle->tar__longname = xstrdup(value);
|
---|
140 | continue;
|
---|
141 | }
|
---|
142 | #endif
|
---|
143 |
|
---|
144 | #if ENABLE_FEATURE_TAR_SELINUX
|
---|
145 | /* Scan for SELinux contexts, via "RHT.security.selinux" keyword.
|
---|
146 | * This is what Red Hat's patched version of tar uses.
|
---|
147 | */
|
---|
148 | # define SELINUX_CONTEXT_KEYWORD "RHT.security.selinux"
|
---|
149 | if (strncmp(value, SELINUX_CONTEXT_KEYWORD"=", sizeof(SELINUX_CONTEXT_KEYWORD"=") - 1) == 0) {
|
---|
150 | value += sizeof(SELINUX_CONTEXT_KEYWORD"=") - 1;
|
---|
151 | free(archive_handle->tar__sctx[global]);
|
---|
152 | archive_handle->tar__sctx[global] = xstrdup(value);
|
---|
153 | continue;
|
---|
154 | }
|
---|
155 | #endif
|
---|
156 | }
|
---|
157 |
|
---|
158 | free(buf);
|
---|
159 | }
|
---|
160 |
|
---|
161 | char FAST_FUNC get_header_tar(archive_handle_t *archive_handle)
|
---|
162 | {
|
---|
163 | file_header_t *file_header = archive_handle->file_header;
|
---|
164 | struct tar_header_t tar;
|
---|
165 | char *cp;
|
---|
166 | int i, sum_u, sum;
|
---|
167 | #if ENABLE_FEATURE_TAR_OLDSUN_COMPATIBILITY
|
---|
168 | int sum_s;
|
---|
169 | #endif
|
---|
170 | int parse_names;
|
---|
171 |
|
---|
172 | /* Our "private data" */
|
---|
173 | #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
|
---|
174 | # define p_longname (archive_handle->tar__longname)
|
---|
175 | # define p_linkname (archive_handle->tar__linkname)
|
---|
176 | #else
|
---|
177 | # define p_longname 0
|
---|
178 | # define p_linkname 0
|
---|
179 | #endif
|
---|
180 |
|
---|
181 | #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS || ENABLE_FEATURE_TAR_SELINUX
|
---|
182 | again:
|
---|
183 | #endif
|
---|
184 | /* Align header */
|
---|
185 | data_align(archive_handle, 512);
|
---|
186 |
|
---|
187 | again_after_align:
|
---|
188 |
|
---|
189 | #if ENABLE_DESKTOP || ENABLE_FEATURE_TAR_AUTODETECT
|
---|
190 | /* to prevent misdetection of bz2 sig */
|
---|
191 | *(aliased_uint32_t*)&tar = 0;
|
---|
192 | i = full_read(archive_handle->src_fd, &tar, 512);
|
---|
193 | /* If GNU tar sees EOF in above read, it says:
|
---|
194 | * "tar: A lone zero block at N", where N = kilobyte
|
---|
195 | * where EOF was met (not EOF block, actual EOF!),
|
---|
196 | * and exits with EXIT_SUCCESS.
|
---|
197 | * We will mimic exit(EXIT_SUCCESS), although we will not mimic
|
---|
198 | * the message and we don't check whether we indeed
|
---|
199 | * saw zero block directly before this. */
|
---|
200 | if (i == 0) {
|
---|
201 | xfunc_error_retval = 0;
|
---|
202 | short_read:
|
---|
203 | bb_error_msg_and_die("short read");
|
---|
204 | }
|
---|
205 | if (i != 512) {
|
---|
206 | IF_FEATURE_TAR_AUTODETECT(goto autodetect;)
|
---|
207 | goto short_read;
|
---|
208 | }
|
---|
209 |
|
---|
210 | #else
|
---|
211 | i = 512;
|
---|
212 | xread(archive_handle->src_fd, &tar, i);
|
---|
213 | #endif
|
---|
214 | archive_handle->offset += i;
|
---|
215 |
|
---|
216 | /* If there is no filename its an empty header */
|
---|
217 | if (tar.name[0] == 0 && tar.prefix[0] == 0) {
|
---|
218 | if (archive_handle->tar__end) {
|
---|
219 | /* Second consecutive empty header - end of archive.
|
---|
220 | * Read until the end to empty the pipe from gz or bz2
|
---|
221 | */
|
---|
222 | while (full_read(archive_handle->src_fd, &tar, 512) == 512)
|
---|
223 | continue;
|
---|
224 | return EXIT_FAILURE;
|
---|
225 | }
|
---|
226 | archive_handle->tar__end = 1;
|
---|
227 | return EXIT_SUCCESS;
|
---|
228 | }
|
---|
229 | archive_handle->tar__end = 0;
|
---|
230 |
|
---|
231 | /* Check header has valid magic, "ustar" is for the proper tar,
|
---|
232 | * five NULs are for the old tar format */
|
---|
233 | if (strncmp(tar.magic, "ustar", 5) != 0
|
---|
234 | && (!ENABLE_FEATURE_TAR_OLDGNU_COMPATIBILITY
|
---|
235 | || memcmp(tar.magic, "\0\0\0\0", 5) != 0)
|
---|
236 | ) {
|
---|
237 | #if ENABLE_FEATURE_TAR_AUTODETECT
|
---|
238 | autodetect:
|
---|
239 | /* Two different causes for lseek() != 0:
|
---|
240 | * unseekable fd (would like to support that too, but...),
|
---|
241 | * or not first block (false positive, it's not .gz/.bz2!) */
|
---|
242 | if (lseek(archive_handle->src_fd, -i, SEEK_CUR) != 0)
|
---|
243 | goto err;
|
---|
244 | if (setup_unzip_on_fd(archive_handle->src_fd, /*fail_if_not_detected:*/ 0) != 0)
|
---|
245 | err:
|
---|
246 | bb_error_msg_and_die("invalid tar magic");
|
---|
247 | archive_handle->offset = 0;
|
---|
248 | goto again_after_align;
|
---|
249 | #endif
|
---|
250 | bb_error_msg_and_die("invalid tar magic");
|
---|
251 | }
|
---|
252 |
|
---|
253 | /* Do checksum on headers.
|
---|
254 | * POSIX says that checksum is done on unsigned bytes, but
|
---|
255 | * Sun and HP-UX gets it wrong... more details in
|
---|
256 | * GNU tar source. */
|
---|
257 | #if ENABLE_FEATURE_TAR_OLDSUN_COMPATIBILITY
|
---|
258 | sum_s = ' ' * sizeof(tar.chksum);
|
---|
259 | #endif
|
---|
260 | sum_u = ' ' * sizeof(tar.chksum);
|
---|
261 | for (i = 0; i < 148; i++) {
|
---|
262 | sum_u += ((unsigned char*)&tar)[i];
|
---|
263 | #if ENABLE_FEATURE_TAR_OLDSUN_COMPATIBILITY
|
---|
264 | sum_s += ((signed char*)&tar)[i];
|
---|
265 | #endif
|
---|
266 | }
|
---|
267 | for (i = 156; i < 512; i++) {
|
---|
268 | sum_u += ((unsigned char*)&tar)[i];
|
---|
269 | #if ENABLE_FEATURE_TAR_OLDSUN_COMPATIBILITY
|
---|
270 | sum_s += ((signed char*)&tar)[i];
|
---|
271 | #endif
|
---|
272 | }
|
---|
273 | /* This field does not need special treatment (getOctal) */
|
---|
274 | {
|
---|
275 | char *endp; /* gcc likes temp var for &endp */
|
---|
276 | sum = strtoul(tar.chksum, &endp, 8);
|
---|
277 | if ((*endp != '\0' && *endp != ' ')
|
---|
278 | || (sum_u != sum IF_FEATURE_TAR_OLDSUN_COMPATIBILITY(&& sum_s != sum))
|
---|
279 | ) {
|
---|
280 | bb_error_msg_and_die("invalid tar header checksum");
|
---|
281 | }
|
---|
282 | }
|
---|
283 | /* don't use xstrtoul, tar.chksum may have leading spaces */
|
---|
284 | sum = strtoul(tar.chksum, NULL, 8);
|
---|
285 | if (sum_u != sum IF_FEATURE_TAR_OLDSUN_COMPATIBILITY(&& sum_s != sum)) {
|
---|
286 | bb_error_msg_and_die("invalid tar header checksum");
|
---|
287 | }
|
---|
288 |
|
---|
289 | /* 0 is reserved for high perf file, treat as normal file */
|
---|
290 | if (!tar.typeflag) tar.typeflag = '0';
|
---|
291 | parse_names = (tar.typeflag >= '0' && tar.typeflag <= '7');
|
---|
292 |
|
---|
293 | /* getOctal trashes subsequent field, therefore we call it
|
---|
294 | * on fields in reverse order */
|
---|
295 | if (tar.devmajor[0]) {
|
---|
296 | char t = tar.prefix[0];
|
---|
297 | /* we trash prefix[0] here, but we DO need it later! */
|
---|
298 | unsigned minor = GET_OCTAL(tar.devminor);
|
---|
299 | unsigned major = GET_OCTAL(tar.devmajor);
|
---|
300 | file_header->device = makedev(major, minor);
|
---|
301 | tar.prefix[0] = t;
|
---|
302 | }
|
---|
303 | file_header->link_target = NULL;
|
---|
304 | if (!p_linkname && parse_names && tar.linkname[0]) {
|
---|
305 | file_header->link_target = xstrndup(tar.linkname, sizeof(tar.linkname));
|
---|
306 | /* FIXME: what if we have non-link object with link_target? */
|
---|
307 | /* Will link_target be free()ed? */
|
---|
308 | }
|
---|
309 | #if ENABLE_FEATURE_TAR_UNAME_GNAME
|
---|
310 | file_header->tar__uname = tar.uname[0] ? xstrndup(tar.uname, sizeof(tar.uname)) : NULL;
|
---|
311 | file_header->tar__gname = tar.gname[0] ? xstrndup(tar.gname, sizeof(tar.gname)) : NULL;
|
---|
312 | #endif
|
---|
313 | file_header->mtime = GET_OCTAL(tar.mtime);
|
---|
314 | file_header->size = GET_OCTAL(tar.size);
|
---|
315 | file_header->gid = GET_OCTAL(tar.gid);
|
---|
316 | file_header->uid = GET_OCTAL(tar.uid);
|
---|
317 | /* Set bits 0-11 of the files mode */
|
---|
318 | file_header->mode = 07777 & GET_OCTAL(tar.mode);
|
---|
319 |
|
---|
320 | file_header->name = NULL;
|
---|
321 | if (!p_longname && parse_names) {
|
---|
322 | /* we trash mode[0] here, it's ok */
|
---|
323 | //tar.name[sizeof(tar.name)] = '\0'; - gcc 4.3.0 would complain
|
---|
324 | tar.mode[0] = '\0';
|
---|
325 | if (tar.prefix[0]) {
|
---|
326 | /* and padding[0] */
|
---|
327 | //tar.prefix[sizeof(tar.prefix)] = '\0'; - gcc 4.3.0 would complain
|
---|
328 | tar.padding[0] = '\0';
|
---|
329 | file_header->name = concat_path_file(tar.prefix, tar.name);
|
---|
330 | } else
|
---|
331 | file_header->name = xstrdup(tar.name);
|
---|
332 | }
|
---|
333 |
|
---|
334 | /* Set bits 12-15 of the files mode */
|
---|
335 | /* (typeflag was not trashed because chksum does not use getOctal) */
|
---|
336 | switch (tar.typeflag) {
|
---|
337 | case '1': /* hardlink */
|
---|
338 | /* we mark hardlinks as regular files with zero size and a link name */
|
---|
339 | file_header->mode |= S_IFREG;
|
---|
340 | /* on size of link fields from star(4)
|
---|
341 | * ... For tar archives written by pre POSIX.1-1988
|
---|
342 | * implementations, the size field usually contains the size of
|
---|
343 | * the file and needs to be ignored as no data may follow this
|
---|
344 | * header type. For POSIX.1- 1988 compliant archives, the size
|
---|
345 | * field needs to be 0. For POSIX.1-2001 compliant archives,
|
---|
346 | * the size field may be non zero, indicating that file data is
|
---|
347 | * included in the archive.
|
---|
348 | * i.e; always assume this is zero for safety.
|
---|
349 | */
|
---|
350 | goto size0;
|
---|
351 | case '7':
|
---|
352 | /* case 0: */
|
---|
353 | case '0':
|
---|
354 | #if ENABLE_FEATURE_TAR_OLDGNU_COMPATIBILITY
|
---|
355 | if (last_char_is(file_header->name, '/')) {
|
---|
356 | goto set_dir;
|
---|
357 | }
|
---|
358 | #endif
|
---|
359 | file_header->mode |= S_IFREG;
|
---|
360 | break;
|
---|
361 | case '2':
|
---|
362 | file_header->mode |= S_IFLNK;
|
---|
363 | /* have seen tarballs with size field containing
|
---|
364 | * the size of the link target's name */
|
---|
365 | size0:
|
---|
366 | file_header->size = 0;
|
---|
367 | break;
|
---|
368 | case '3':
|
---|
369 | file_header->mode |= S_IFCHR;
|
---|
370 | goto size0; /* paranoia */
|
---|
371 | case '4':
|
---|
372 | file_header->mode |= S_IFBLK;
|
---|
373 | goto size0;
|
---|
374 | case '5':
|
---|
375 | IF_FEATURE_TAR_OLDGNU_COMPATIBILITY(set_dir:)
|
---|
376 | file_header->mode |= S_IFDIR;
|
---|
377 | goto size0;
|
---|
378 | case '6':
|
---|
379 | file_header->mode |= S_IFIFO;
|
---|
380 | goto size0;
|
---|
381 | #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
|
---|
382 | case 'L':
|
---|
383 | /* free: paranoia: tar with several consecutive longnames */
|
---|
384 | free(p_longname);
|
---|
385 | /* For paranoia reasons we allocate extra NUL char */
|
---|
386 | p_longname = xzalloc(file_header->size + 1);
|
---|
387 | /* We read ASCIZ string, including NUL */
|
---|
388 | xread(archive_handle->src_fd, p_longname, file_header->size);
|
---|
389 | archive_handle->offset += file_header->size;
|
---|
390 | /* return get_header_tar(archive_handle); */
|
---|
391 | /* gcc 4.1.1 didn't optimize it into jump */
|
---|
392 | /* so we will do it ourself, this also saves stack */
|
---|
393 | goto again;
|
---|
394 | case 'K':
|
---|
395 | free(p_linkname);
|
---|
396 | p_linkname = xzalloc(file_header->size + 1);
|
---|
397 | xread(archive_handle->src_fd, p_linkname, file_header->size);
|
---|
398 | archive_handle->offset += file_header->size;
|
---|
399 | /* return get_header_tar(archive_handle); */
|
---|
400 | goto again;
|
---|
401 | case 'D': /* GNU dump dir */
|
---|
402 | case 'M': /* Continuation of multi volume archive */
|
---|
403 | case 'N': /* Old GNU for names > 100 characters */
|
---|
404 | case 'S': /* Sparse file */
|
---|
405 | case 'V': /* Volume header */
|
---|
406 | #endif
|
---|
407 | case 'g': /* pax global header */
|
---|
408 | case 'x': { /* pax extended header */
|
---|
409 | if ((uoff_t)file_header->size > 0xfffff) /* paranoia */
|
---|
410 | goto skip_ext_hdr;
|
---|
411 | process_pax_hdr(archive_handle, file_header->size, (tar.typeflag == 'g'));
|
---|
412 | goto again_after_align;
|
---|
413 | }
|
---|
414 | skip_ext_hdr:
|
---|
415 | {
|
---|
416 | off_t sz;
|
---|
417 | bb_error_msg("warning: skipping header '%c'", tar.typeflag);
|
---|
418 | sz = (file_header->size + 511) & ~(off_t)511;
|
---|
419 | archive_handle->offset += sz;
|
---|
420 | sz >>= 9; /* sz /= 512 but w/o contortions for signed div */
|
---|
421 | while (sz--)
|
---|
422 | xread(archive_handle->src_fd, &tar, 512);
|
---|
423 | /* return get_header_tar(archive_handle); */
|
---|
424 | goto again_after_align;
|
---|
425 | }
|
---|
426 | default:
|
---|
427 | bb_error_msg_and_die("unknown typeflag: 0x%x", tar.typeflag);
|
---|
428 | }
|
---|
429 |
|
---|
430 | #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
|
---|
431 | if (p_longname) {
|
---|
432 | file_header->name = p_longname;
|
---|
433 | p_longname = NULL;
|
---|
434 | }
|
---|
435 | if (p_linkname) {
|
---|
436 | file_header->link_target = p_linkname;
|
---|
437 | p_linkname = NULL;
|
---|
438 | }
|
---|
439 | #endif
|
---|
440 |
|
---|
441 | /* Everything up to and including last ".." component is stripped */
|
---|
442 | overlapping_strcpy(file_header->name, strip_unsafe_prefix(file_header->name));
|
---|
443 |
|
---|
444 | /* Strip trailing '/' in directories */
|
---|
445 | /* Must be done after mode is set as '/' is used to check if it's a directory */
|
---|
446 | cp = last_char_is(file_header->name, '/');
|
---|
447 |
|
---|
448 | if (archive_handle->filter(archive_handle) == EXIT_SUCCESS) {
|
---|
449 | archive_handle->action_header(/*archive_handle->*/ file_header);
|
---|
450 | /* Note that we kill the '/' only after action_header() */
|
---|
451 | /* (like GNU tar 1.15.1: verbose mode outputs "dir/dir/") */
|
---|
452 | if (cp)
|
---|
453 | *cp = '\0';
|
---|
454 | archive_handle->action_data(archive_handle);
|
---|
455 | if (archive_handle->accept || archive_handle->reject
|
---|
456 | || (archive_handle->ah_flags & ARCHIVE_REMEMBER_NAMES)
|
---|
457 | ) {
|
---|
458 | llist_add_to(&archive_handle->passed, file_header->name);
|
---|
459 | } else /* Caller isn't interested in list of unpacked files */
|
---|
460 | free(file_header->name);
|
---|
461 | } else {
|
---|
462 | data_skip(archive_handle);
|
---|
463 | free(file_header->name);
|
---|
464 | }
|
---|
465 | archive_handle->offset += file_header->size;
|
---|
466 |
|
---|
467 | free(file_header->link_target);
|
---|
468 | /* Do not free(file_header->name)!
|
---|
469 | * It might be inserted in archive_handle->passed - see above */
|
---|
470 | #if ENABLE_FEATURE_TAR_UNAME_GNAME
|
---|
471 | free(file_header->tar__uname);
|
---|
472 | free(file_header->tar__gname);
|
---|
473 | #endif
|
---|
474 | return EXIT_SUCCESS;
|
---|
475 | }
|
---|