| 25 |
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|
| 26 |
#include "common.h" |
#include "common.h" |
| 27 |
|
|
| 28 |
|
#define obstack_chunk_alloc xmalloc |
| 29 |
|
#define obstack_chunk_free free |
| 30 |
|
#include <obstack.h> |
| 31 |
|
|
| 32 |
/* Forward declarations */ |
/* Forward declarations */ |
| 33 |
static void dummy_handler (struct tar_stat_info *st, char *keyword, char *arg); |
static void dummy_coder (struct tar_stat_info *st, char *keyword, |
| 34 |
|
struct xheader *xhdr); |
| 35 |
|
static void dummy_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 36 |
|
|
| 37 |
static void atime_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void atime_coder (struct tar_stat_info *st, char *keyword, |
| 38 |
|
struct xheader *xhdr); |
| 39 |
static void atime_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void atime_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 40 |
|
|
| 41 |
static void gid_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void gid_coder (struct tar_stat_info *st, char *keyword, |
| 42 |
|
struct xheader *xhdr); |
| 43 |
static void gid_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void gid_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 44 |
|
|
| 45 |
static void gname_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void gname_coder (struct tar_stat_info *st, char *keyword, |
| 46 |
|
struct xheader *xhdr); |
| 47 |
static void gname_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void gname_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 48 |
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|
| 49 |
static void linkpath_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void linkpath_coder (struct tar_stat_info *st, char *keyword, |
| 50 |
|
struct xheader *xhdr); |
| 51 |
static void linkpath_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void linkpath_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 52 |
|
|
| 53 |
static void mtime_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void mtime_coder (struct tar_stat_info *st, char *keyword, |
| 54 |
|
struct xheader *xhdr); |
| 55 |
static void mtime_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void mtime_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 56 |
|
|
| 57 |
static void ctime_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void ctime_coder (struct tar_stat_info *st, char *keyword, |
| 58 |
|
struct xheader *xhdr); |
| 59 |
static void ctime_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void ctime_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 60 |
|
|
| 61 |
static void path_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void path_coder (struct tar_stat_info *st, char *keyword, |
| 62 |
|
struct xheader *xhdr); |
| 63 |
static void path_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void path_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 64 |
|
|
| 65 |
static void size_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void size_coder (struct tar_stat_info *st, char *keyword, |
| 66 |
|
struct xheader *xhdr); |
| 67 |
static void size_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void size_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 68 |
|
|
| 69 |
static void uid_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void uid_coder (struct tar_stat_info *st, char *keyword, |
| 70 |
|
struct xheader *xhdr); |
| 71 |
static void uid_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void uid_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 72 |
|
|
| 73 |
static void uname_coder (struct tar_stat_info *st, char *keyword, char *arg); |
static void uname_coder (struct tar_stat_info *st, char *keyword, |
| 74 |
|
struct xheader *xhdr); |
| 75 |
static void uname_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
static void uname_decoder (struct tar_stat_info *st, char *keyword, char *arg); |
| 76 |
|
|
| 77 |
/* General Interface */ |
/* General Interface */ |
| 79 |
struct xhdr_tab |
struct xhdr_tab |
| 80 |
{ |
{ |
| 81 |
char *keyword; |
char *keyword; |
| 82 |
void (*coder) (struct tar_stat_info *st, char *keyword, char *arg); |
void (*coder) (struct tar_stat_info *st, char *keyword, struct xheader *xhdr); |
| 83 |
void (*decoder) (struct tar_stat_info *st, char *keyword, char *arg); |
void (*decoder) (struct tar_stat_info *st, char *keyword, char *arg); |
| 84 |
}; |
}; |
| 85 |
|
|
| 86 |
struct xhdr_tab xhdr_tab[] = { |
struct xhdr_tab xhdr_tab[] = { |
| 87 |
{ "atime", atime_coder, atime_decoder }, |
{ "atime", atime_coder, atime_decoder }, |
| 88 |
{ "comment", dummy_handler, dummy_handler }, |
{ "comment", dummy_coder, dummy_decoder }, |
| 89 |
{ "charset", dummy_handler, dummy_handler }, |
{ "charset", dummy_coder, dummy_decoder }, |
| 90 |
{ "ctime", ctime_coder, ctime_decoder }, |
{ "ctime", ctime_coder, ctime_decoder }, |
| 91 |
{ "gid", gid_coder, gid_decoder }, |
{ "gid", gid_coder, gid_decoder }, |
| 92 |
{ "gname", gname_coder, gname_decoder }, |
{ "gname", gname_coder, gname_decoder }, |
| 164 |
{ |
{ |
| 165 |
char *p, *endp; |
char *p, *endp; |
| 166 |
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|
| 167 |
p = extended_header.blocks->buffer; |
p = extended_header.buffer; |
| 168 |
endp = &extended_header.blocks[extended_header.nblocks-1].buffer |
endp = &extended_header.buffer[extended_header.size-1]; |
| 169 |
[sizeof(extended_header.blocks[0])-1]; |
|
| 170 |
while (p < endp) |
while (p < endp) |
| 171 |
if (decode_record (&p, st)) |
if (decode_record (&p, st)) |
| 172 |
break; |
break; |
| 173 |
} |
} |
| 174 |
|
|
| 175 |
void |
void |
| 176 |
|
xheader_store (char *keyword, struct tar_stat_info *st) |
| 177 |
|
{ |
| 178 |
|
struct xhdr_tab *t; |
| 179 |
|
|
| 180 |
|
if (extended_header.buffer) |
| 181 |
|
return; |
| 182 |
|
t = locate_handler (keyword); |
| 183 |
|
if (!t) |
| 184 |
|
return; |
| 185 |
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if (!extended_header.stk) |
| 186 |
|
{ |
| 187 |
|
extended_header.stk = xmalloc (sizeof (*extended_header.stk)); |
| 188 |
|
obstack_init (extended_header.stk); |
| 189 |
|
} |
| 190 |
|
t->coder (st, keyword, &extended_header); |
| 191 |
|
} |
| 192 |
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|
| 193 |
|
void |
| 194 |
xheader_read (union block *p, size_t size) |
xheader_read (union block *p, size_t size) |
| 195 |
{ |
{ |
| 196 |
size_t i; |
size_t i, j; |
| 197 |
|
size_t nblocks; |
| 198 |
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|
| 199 |
free (extended_header.blocks); |
free (extended_header.buffer); |
| 200 |
extended_header.nblocks = (size + BLOCKSIZE - 1) / BLOCKSIZE; |
extended_header.size = size; |
| 201 |
extended_header.blocks = xmalloc (sizeof (extended_header.blocks[0]) * |
nblocks = (size + BLOCKSIZE - 1) / BLOCKSIZE; |
| 202 |
extended_header.nblocks); |
extended_header.buffer = xmalloc (size + 1); |
| 203 |
|
|
| 204 |
set_next_block_after (p); |
set_next_block_after (p); |
| 205 |
for (i = 0; i < extended_header.nblocks; i++) |
for (i = j = 0; i < nblocks; i++) |
| 206 |
{ |
{ |
| 207 |
|
size_t len; |
| 208 |
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|
| 209 |
p = find_next_block (); |
p = find_next_block (); |
| 210 |
memcpy (&extended_header.blocks[i], p, sizeof (p[0])); |
len = size; |
| 211 |
|
if (len > BLOCKSIZE) |
| 212 |
|
len = BLOCKSIZE; |
| 213 |
|
memcpy (&extended_header.buffer[j], p->buffer, len); |
| 214 |
set_next_block_after (p); |
set_next_block_after (p); |
| 215 |
|
|
| 216 |
|
j += len; |
| 217 |
|
size -= len; |
| 218 |
} |
} |
| 219 |
} |
} |
| 220 |
|
|
| 221 |
|
size_t |
| 222 |
|
format_uintmax (uintmax_t val, char *buf, size_t s) |
| 223 |
|
{ |
| 224 |
|
if (!buf) |
| 225 |
|
{ |
| 226 |
|
s = 0; |
| 227 |
|
do |
| 228 |
|
s++; |
| 229 |
|
while ((val /= 10) != 0); |
| 230 |
|
} |
| 231 |
|
else |
| 232 |
|
{ |
| 233 |
|
char *p = buf + s - 1; |
| 234 |
|
|
| 235 |
|
do |
| 236 |
|
{ |
| 237 |
|
*p-- = val % 10 + '0'; |
| 238 |
|
} |
| 239 |
|
while ((val /= 10) != 0); |
| 240 |
|
|
| 241 |
|
while (p >= buf) |
| 242 |
|
*p-- = '0'; |
| 243 |
|
} |
| 244 |
|
return s; |
| 245 |
|
} |
| 246 |
|
|
| 247 |
|
void |
| 248 |
|
xheader_print (struct xheader *xhdr, char *keyword, char *value) |
| 249 |
|
{ |
| 250 |
|
size_t len = strlen (keyword) + strlen (value) + 3; /* ' ' + '=' + '\n' */ |
| 251 |
|
size_t p, n = 0; |
| 252 |
|
char nbuf[100]; |
| 253 |
|
|
| 254 |
|
do |
| 255 |
|
{ |
| 256 |
|
p = n; |
| 257 |
|
n = format_uintmax (len + p, NULL, 0); |
| 258 |
|
} |
| 259 |
|
while (n != p); |
| 260 |
|
|
| 261 |
|
format_uintmax (len + n, nbuf, n); |
| 262 |
|
obstack_grow (xhdr->stk, nbuf, n); |
| 263 |
|
obstack_1grow (xhdr->stk, ' '); |
| 264 |
|
obstack_grow (xhdr->stk, keyword, strlen (keyword)); |
| 265 |
|
obstack_1grow (xhdr->stk, '='); |
| 266 |
|
obstack_grow (xhdr->stk, value, strlen (value)); |
| 267 |
|
obstack_1grow (xhdr->stk, '\n'); |
| 268 |
|
} |
| 269 |
|
|
| 270 |
|
void |
| 271 |
|
xheader_finish (struct xheader *xhdr) |
| 272 |
|
{ |
| 273 |
|
obstack_1grow (xhdr->stk, 0); |
| 274 |
|
xhdr->buffer = obstack_finish (xhdr->stk); |
| 275 |
|
xhdr->size = strlen (xhdr->buffer); |
| 276 |
|
} |
| 277 |
|
|
| 278 |
|
void |
| 279 |
|
xheader_destroy (struct xheader *xhdr) |
| 280 |
|
{ |
| 281 |
|
if (xhdr->stk) |
| 282 |
|
{ |
| 283 |
|
obstack_free (xhdr->stk, NULL); |
| 284 |
|
free (xhdr->stk); |
| 285 |
|
xhdr->stk = NULL; |
| 286 |
|
} |
| 287 |
|
else |
| 288 |
|
free (xhdr->buffer); |
| 289 |
|
xhdr->buffer = 0; |
| 290 |
|
xhdr->size = 0; |
| 291 |
|
} |
| 292 |
|
|
| 293 |
|
|
| 294 |
/* Implementations */ |
/* Implementations */ |
| 295 |
static void |
static void |
| 296 |
dummy_handler (struct tar_stat_info *st, char *keyword, char *arg) |
code_string (char *string, char *keyword, struct xheader *xhdr) |
| 297 |
|
{ |
| 298 |
|
xheader_print (xhdr, keyword, string); |
| 299 |
|
} |
| 300 |
|
|
| 301 |
|
static void |
| 302 |
|
code_time (time_t t, char *keyword, struct xheader *xhdr) |
| 303 |
|
{ |
| 304 |
|
char sbuf[100]; |
| 305 |
|
size_t s = format_uintmax (t, NULL, 0); |
| 306 |
|
format_uintmax (t, sbuf, s); |
| 307 |
|
sbuf[s++] = '.'; |
| 308 |
|
format_uintmax (0, sbuf + s, 9); |
| 309 |
|
sbuf[s+9] = 0; |
| 310 |
|
xheader_print (xhdr, keyword, sbuf); |
| 311 |
|
} |
| 312 |
|
|
| 313 |
|
static void |
| 314 |
|
code_num (uintmax_t value, char *keyword, struct xheader *xhdr) |
| 315 |
|
{ |
| 316 |
|
char sbuf[100]; |
| 317 |
|
size_t s = format_uintmax (value, NULL, 0); |
| 318 |
|
format_uintmax (value, sbuf, s); |
| 319 |
|
sbuf[s] = 0; |
| 320 |
|
xheader_print (xhdr, keyword, sbuf); |
| 321 |
|
} |
| 322 |
|
|
| 323 |
|
static void |
| 324 |
|
dummy_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 325 |
|
{ |
| 326 |
|
} |
| 327 |
|
|
| 328 |
|
static void |
| 329 |
|
dummy_decoder (struct tar_stat_info *st, char *keyword, char *arg) |
| 330 |
{ |
{ |
| 331 |
} |
} |
| 332 |
|
|
| 333 |
static void |
static void |
| 334 |
atime_coder (struct tar_stat_info *st, char *keyword, char *arg) |
atime_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 335 |
{ |
{ |
| 336 |
|
code_time (st->stat.st_atime, keyword, xhdr); |
| 337 |
} |
} |
| 338 |
|
|
| 339 |
static void |
static void |
| 343 |
} |
} |
| 344 |
|
|
| 345 |
static void |
static void |
| 346 |
gid_coder (struct tar_stat_info *st, char *keyword, char *arg) |
gid_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 347 |
{ |
{ |
| 348 |
|
code_num (st->stat.st_gid, keyword, xhdr); |
| 349 |
} |
} |
| 350 |
|
|
| 351 |
static void |
static void |
| 355 |
} |
} |
| 356 |
|
|
| 357 |
static void |
static void |
| 358 |
gname_coder (struct tar_stat_info *st, char *keyword, char *arg) |
gname_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 359 |
{ |
{ |
| 360 |
|
code_string (st->gname, keyword, xhdr); |
| 361 |
} |
} |
| 362 |
|
|
| 363 |
static void |
static void |
| 364 |
gname_decoder (struct tar_stat_info *st, char *keyword, char *arg) |
gname_decoder (struct tar_stat_info *st, char *keyword, char *arg) |
| 365 |
{ |
{ |
| 366 |
st->gname = strdup (arg); |
assign_string (&st->gname, arg); |
| 367 |
} |
} |
| 368 |
|
|
| 369 |
static void |
static void |
| 370 |
linkpath_coder (struct tar_stat_info *st, char *keyword, char *arg) |
linkpath_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 371 |
{ |
{ |
| 372 |
|
code_string (st->link_name, keyword, xhdr); |
| 373 |
} |
} |
| 374 |
|
|
| 375 |
static void |
static void |
| 376 |
linkpath_decoder (struct tar_stat_info *st, char *keyword, char *arg) |
linkpath_decoder (struct tar_stat_info *st, char *keyword, char *arg) |
| 377 |
{ |
{ |
| 378 |
st->link_name = strdup (arg); |
assign_string (&st->link_name, arg); |
| 379 |
} |
} |
| 380 |
|
|
| 381 |
static void |
static void |
| 382 |
ctime_coder (struct tar_stat_info *st, char *keyword, char *arg) |
ctime_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 383 |
{ |
{ |
| 384 |
|
code_time (st->stat.st_ctime, keyword, xhdr); |
| 385 |
} |
} |
| 386 |
|
|
| 387 |
static void |
static void |
| 391 |
} |
} |
| 392 |
|
|
| 393 |
static void |
static void |
| 394 |
mtime_coder (struct tar_stat_info *st, char *keyword, char *arg) |
mtime_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 395 |
{ |
{ |
| 396 |
|
code_time (st->stat.st_mtime, keyword, xhdr); |
| 397 |
} |
} |
| 398 |
|
|
| 399 |
static void |
static void |
| 403 |
} |
} |
| 404 |
|
|
| 405 |
static void |
static void |
| 406 |
path_coder (struct tar_stat_info *st, char *keyword, char *arg) |
path_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 407 |
{ |
{ |
| 408 |
|
code_string (st->orig_file_name, keyword, xhdr); |
| 409 |
} |
} |
| 410 |
|
|
| 411 |
static void |
static void |
| 417 |
} |
} |
| 418 |
|
|
| 419 |
static void |
static void |
| 420 |
size_coder (struct tar_stat_info *st, char *keyword, char *arg) |
size_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 421 |
{ |
{ |
| 422 |
|
code_num (st->stat.st_size, keyword, xhdr); |
| 423 |
} |
} |
| 424 |
|
|
| 425 |
static void |
static void |
| 429 |
} |
} |
| 430 |
|
|
| 431 |
static void |
static void |
| 432 |
uid_coder (struct tar_stat_info *st, char *keyword, char *arg) |
uid_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 433 |
{ |
{ |
| 434 |
|
code_num (st->stat.st_uid, keyword, xhdr); |
| 435 |
} |
} |
| 436 |
|
|
| 437 |
static void |
static void |
| 441 |
} |
} |
| 442 |
|
|
| 443 |
static void |
static void |
| 444 |
uname_coder (struct tar_stat_info *st, char *keyword, char *arg) |
uname_coder (struct tar_stat_info *st, char *keyword, struct xheader *xhdr) |
| 445 |
{ |
{ |
| 446 |
|
code_string (st->uname, keyword, xhdr); |
| 447 |
} |
} |
| 448 |
|
|
| 449 |
static void |
static void |
| 450 |
uname_decoder (struct tar_stat_info *st, char *keyword, char *arg) |
uname_decoder (struct tar_stat_info *st, char *keyword, char *arg) |
| 451 |
{ |
{ |
| 452 |
st->uname = strdup (arg); |
assign_string (&st->uname, arg); |
| 453 |
} |
} |
| 454 |
|
|