| File: | libexec/got-read-blob/../../lib/privsep.c |
| Warning: | line 589, column 2 Value stored to 'fd' is never read |
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| 1 | /* |
| 2 | * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org> |
| 3 | * Copyright (c) 2020 Ori Bernstein <ori@openbsd.org> |
| 4 | * |
| 5 | * Permission to use, copy, modify, and distribute this software for any |
| 6 | * purpose with or without fee is hereby granted, provided that the above |
| 7 | * copyright notice and this permission notice appear in all copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 16 | */ |
| 17 | |
| 18 | #include <sys/types.h> |
| 19 | #include <sys/queue.h> |
| 20 | #include <sys/uio.h> |
| 21 | #include <sys/wait.h> |
| 22 | |
| 23 | #include <ctype.h> |
| 24 | #include <limits.h> |
| 25 | #include <signal.h> |
| 26 | #include <stdio.h> |
| 27 | #include <stdlib.h> |
| 28 | #include <string.h> |
| 29 | #include <errno(*__errno()).h> |
| 30 | #include <stdint.h> |
| 31 | #include <poll.h> |
| 32 | #include <imsg.h> |
| 33 | #include <sha1.h> |
| 34 | #include <unistd.h> |
| 35 | #include <zlib.h> |
| 36 | #include <time.h> |
| 37 | |
| 38 | #include "got_object.h" |
| 39 | #include "got_error.h" |
| 40 | #include "got_path.h" |
| 41 | #include "got_repository.h" |
| 42 | |
| 43 | #include "got_lib_sha1.h" |
| 44 | #include "got_lib_delta.h" |
| 45 | #include "got_lib_inflate.h" |
| 46 | #include "got_lib_object.h" |
| 47 | #include "got_lib_object_parse.h" |
| 48 | #include "got_lib_privsep.h" |
| 49 | #include "got_lib_pack.h" |
| 50 | |
| 51 | #ifndef MIN |
| 52 | #define MIN(_a,_b)((_a) < (_b) ? (_a) : (_b)) ((_a) < (_b) ? (_a) : (_b)) |
| 53 | #endif |
| 54 | |
| 55 | #ifndef nitems |
| 56 | #define nitems(_a)(sizeof((_a)) / sizeof((_a)[0])) (sizeof((_a)) / sizeof((_a)[0])) |
| 57 | #endif |
| 58 | |
| 59 | static const struct got_error * |
| 60 | poll_fd(int fd, int events, int timeout) |
| 61 | { |
| 62 | struct pollfd pfd[1]; |
| 63 | struct timespec ts; |
| 64 | sigset_t sigset; |
| 65 | int n; |
| 66 | |
| 67 | pfd[0].fd = fd; |
| 68 | pfd[0].events = events; |
| 69 | |
| 70 | ts.tv_sec = timeout; |
| 71 | ts.tv_nsec = 0; |
| 72 | |
| 73 | if (sigemptyset(&sigset) == -1) |
| 74 | return got_error_from_errno("sigemptyset"); |
| 75 | if (sigaddset(&sigset, SIGWINCH28) == -1) |
| 76 | return got_error_from_errno("sigaddset"); |
| 77 | |
| 78 | n = ppoll(pfd, 1, timeout == INFTIM(-1) ? NULL((void *)0) : &ts, &sigset); |
| 79 | if (n == -1) |
| 80 | return got_error_from_errno("ppoll"); |
| 81 | if (n == 0) |
| 82 | return got_error(GOT_ERR_TIMEOUT33); |
| 83 | if (pfd[0].revents & (POLLERR0x0008 | POLLNVAL0x0020)) |
| 84 | return got_error_from_errno("poll error"); |
| 85 | if (pfd[0].revents & (events | POLLHUP0x0010)) |
| 86 | return NULL((void *)0); |
| 87 | |
| 88 | return got_error(GOT_ERR_INTERRUPT34); |
| 89 | } |
| 90 | |
| 91 | static const struct got_error * |
| 92 | read_imsg(struct imsgbuf *ibuf) |
| 93 | { |
| 94 | const struct got_error *err; |
| 95 | size_t n; |
| 96 | |
| 97 | err = poll_fd(ibuf->fd, POLLIN0x0001, INFTIM(-1)); |
| 98 | if (err) |
| 99 | return err; |
| 100 | |
| 101 | n = imsg_read(ibuf); |
| 102 | if (n == -1) { |
| 103 | if (errno(*__errno()) == EAGAIN35) /* Could be a file-descriptor leak. */ |
| 104 | return got_error(GOT_ERR_PRIVSEP_NO_FD38); |
| 105 | return got_error(GOT_ERR_PRIVSEP_READ35); |
| 106 | } |
| 107 | if (n == 0) |
| 108 | return got_error(GOT_ERR_PRIVSEP_PIPE37); |
| 109 | |
| 110 | return NULL((void *)0); |
| 111 | } |
| 112 | |
| 113 | const struct got_error * |
| 114 | got_privsep_wait_for_child(pid_t pid) |
| 115 | { |
| 116 | int child_status; |
| 117 | |
| 118 | if (waitpid(pid, &child_status, 0) == -1) |
| 119 | return got_error_from_errno("waitpid"); |
| 120 | |
| 121 | if (!WIFEXITED(child_status)(((child_status) & 0177) == 0)) |
| 122 | return got_error(GOT_ERR_PRIVSEP_DIED40); |
| 123 | |
| 124 | if (WEXITSTATUS(child_status)(int)(((unsigned)(child_status) >> 8) & 0xff) != 0) |
| 125 | return got_error(GOT_ERR_PRIVSEP_EXIT41); |
| 126 | |
| 127 | return NULL((void *)0); |
| 128 | } |
| 129 | |
| 130 | static const struct got_error * |
| 131 | recv_imsg_error(struct imsg *imsg, size_t datalen) |
| 132 | { |
| 133 | struct got_imsg_error *ierr; |
| 134 | |
| 135 | if (datalen != sizeof(*ierr)) |
| 136 | return got_error(GOT_ERR_PRIVSEP_LEN36); |
| 137 | |
| 138 | ierr = imsg->data; |
| 139 | if (ierr->code == GOT_ERR_ERRNO1) { |
| 140 | static struct got_error serr; |
| 141 | serr.code = GOT_ERR_ERRNO1; |
| 142 | serr.msg = strerror(ierr->errno_code); |
| 143 | return &serr; |
| 144 | } |
| 145 | |
| 146 | return got_error(ierr->code); |
| 147 | } |
| 148 | |
| 149 | const struct got_error * |
| 150 | got_privsep_recv_imsg(struct imsg *imsg, struct imsgbuf *ibuf, |
| 151 | size_t min_datalen) |
| 152 | { |
| 153 | const struct got_error *err; |
| 154 | ssize_t n; |
| 155 | |
| 156 | n = imsg_get(ibuf, imsg); |
| 157 | if (n == -1) |
| 158 | return got_error_from_errno("imsg_get"); |
| 159 | |
| 160 | while (n == 0) { |
| 161 | err = read_imsg(ibuf); |
| 162 | if (err) |
| 163 | return err; |
| 164 | n = imsg_get(ibuf, imsg); |
| 165 | if (n == -1) |
| 166 | return got_error_from_errno("imsg_get"); |
| 167 | } |
| 168 | |
| 169 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + min_datalen) |
| 170 | return got_error(GOT_ERR_PRIVSEP_LEN36); |
| 171 | |
| 172 | if (imsg->hdr.type == GOT_IMSG_ERROR) { |
| 173 | size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 174 | return recv_imsg_error(imsg, datalen); |
| 175 | } |
| 176 | |
| 177 | return NULL((void *)0); |
| 178 | } |
| 179 | |
| 180 | /* Attempt to send an error in an imsg. Complain on stderr as a last resort. */ |
| 181 | void |
| 182 | got_privsep_send_error(struct imsgbuf *ibuf, const struct got_error *err) |
| 183 | { |
| 184 | const struct got_error *poll_err; |
| 185 | struct got_imsg_error ierr; |
| 186 | int ret; |
| 187 | |
| 188 | ierr.code = err->code; |
| 189 | if (err->code == GOT_ERR_ERRNO1) |
| 190 | ierr.errno_code = errno(*__errno()); |
| 191 | else |
| 192 | ierr.errno_code = 0; |
| 193 | ret = imsg_compose(ibuf, GOT_IMSG_ERROR, 0, 0, -1, &ierr, sizeof(ierr)); |
| 194 | if (ret == -1) { |
| 195 | fprintf(stderr(&__sF[2]), "%s: error %d \"%s\": imsg_compose: %s\n", |
| 196 | getprogname(), err->code, err->msg, strerror(errno(*__errno()))); |
| 197 | return; |
| 198 | } |
| 199 | |
| 200 | poll_err = poll_fd(ibuf->fd, POLLOUT0x0004, INFTIM(-1)); |
| 201 | if (poll_err) { |
| 202 | fprintf(stderr(&__sF[2]), "%s: error %d \"%s\": poll: %s\n", |
| 203 | getprogname(), err->code, err->msg, poll_err->msg); |
| 204 | return; |
| 205 | } |
| 206 | |
| 207 | ret = imsg_flush(ibuf); |
| 208 | if (ret == -1) { |
| 209 | fprintf(stderr(&__sF[2]), "%s: error %d \"%s\": imsg_flush: %s\n", |
| 210 | getprogname(), err->code, err->msg, strerror(errno(*__errno()))); |
| 211 | return; |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | static const struct got_error * |
| 216 | flush_imsg(struct imsgbuf *ibuf) |
| 217 | { |
| 218 | const struct got_error *err; |
| 219 | |
| 220 | err = poll_fd(ibuf->fd, POLLOUT0x0004, INFTIM(-1)); |
| 221 | if (err) |
| 222 | return err; |
| 223 | |
| 224 | if (imsg_flush(ibuf) == -1) |
| 225 | return got_error_from_errno("imsg_flush"); |
| 226 | |
| 227 | return NULL((void *)0); |
| 228 | } |
| 229 | |
| 230 | const struct got_error * |
| 231 | got_privsep_flush_imsg(struct imsgbuf *ibuf) |
| 232 | { |
| 233 | return flush_imsg(ibuf); |
| 234 | } |
| 235 | |
| 236 | const struct got_error * |
| 237 | got_privsep_send_stop(int fd) |
| 238 | { |
| 239 | const struct got_error *err = NULL((void *)0); |
| 240 | struct imsgbuf ibuf; |
| 241 | |
| 242 | imsg_init(&ibuf, fd); |
| 243 | |
| 244 | if (imsg_compose(&ibuf, GOT_IMSG_STOP, 0, 0, -1, NULL((void *)0), 0) == -1) |
| 245 | return got_error_from_errno("imsg_compose STOP"); |
| 246 | |
| 247 | err = flush_imsg(&ibuf); |
| 248 | imsg_clear(&ibuf); |
| 249 | return err; |
| 250 | } |
| 251 | |
| 252 | const struct got_error * |
| 253 | got_privsep_send_obj_req(struct imsgbuf *ibuf, int fd) |
| 254 | { |
| 255 | if (imsg_compose(ibuf, GOT_IMSG_OBJECT_REQUEST, 0, 0, fd, NULL((void *)0), 0) |
| 256 | == -1) |
| 257 | return got_error_from_errno("imsg_compose OBJECT_REQUEST"); |
| 258 | |
| 259 | return flush_imsg(ibuf); |
| 260 | } |
| 261 | |
| 262 | const struct got_error * |
| 263 | got_privsep_send_raw_obj_req(struct imsgbuf *ibuf, int fd) |
| 264 | { |
| 265 | if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_REQUEST, 0, 0, fd, NULL((void *)0), 0) |
| 266 | == -1) |
| 267 | return got_error_from_errno("imsg_compose RAW_OBJECT_REQUEST"); |
| 268 | |
| 269 | return flush_imsg(ibuf); |
| 270 | } |
| 271 | |
| 272 | const struct got_error * |
| 273 | got_privsep_send_raw_obj_outfd(struct imsgbuf *ibuf, int outfd) |
| 274 | { |
| 275 | const struct got_error *err = NULL((void *)0); |
| 276 | |
| 277 | if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_OUTFD, 0, 0, outfd, NULL((void *)0), 0) |
| 278 | == -1) { |
| 279 | err = got_error_from_errno("imsg_compose RAW_OBJECT_OUTFD"); |
| 280 | close(outfd); |
| 281 | return err; |
| 282 | } |
| 283 | |
| 284 | return flush_imsg(ibuf); |
| 285 | } |
| 286 | |
| 287 | const struct got_error * |
| 288 | got_privsep_send_raw_obj(struct imsgbuf *ibuf, off_t size, size_t hdrlen, |
| 289 | uint8_t *data) |
| 290 | { |
| 291 | const struct got_error *err = NULL((void *)0); |
| 292 | struct got_imsg_raw_obj iobj; |
| 293 | size_t len = sizeof(iobj); |
| 294 | struct ibuf *wbuf; |
| 295 | |
| 296 | iobj.hdrlen = hdrlen; |
| 297 | iobj.size = size; |
| 298 | |
| 299 | if (data && size <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX(16384 - sizeof(struct imsg_hdr) - sizeof(struct got_imsg_raw_obj ))) |
| 300 | len += (size_t)size; |
| 301 | |
| 302 | wbuf = imsg_create(ibuf, GOT_IMSG_RAW_OBJECT, 0, 0, len); |
| 303 | if (wbuf == NULL((void *)0)) { |
| 304 | err = got_error_from_errno("imsg_create RAW_OBJECT"); |
| 305 | return err; |
| 306 | } |
| 307 | |
| 308 | if (imsg_add(wbuf, &iobj, sizeof(iobj)) == -1) { |
| 309 | err = got_error_from_errno("imsg_add RAW_OBJECT"); |
| 310 | ibuf_free(wbuf); |
| 311 | return err; |
| 312 | } |
| 313 | |
| 314 | if (data && size <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX(16384 - sizeof(struct imsg_hdr) - sizeof(struct got_imsg_raw_obj ))) { |
| 315 | if (imsg_add(wbuf, data, size) == -1) { |
| 316 | err = got_error_from_errno("imsg_add RAW_OBJECT"); |
| 317 | ibuf_free(wbuf); |
| 318 | return err; |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | wbuf->fd = -1; |
| 323 | imsg_close(ibuf, wbuf); |
| 324 | |
| 325 | return flush_imsg(ibuf); |
| 326 | } |
| 327 | |
| 328 | const struct got_error * |
| 329 | got_privsep_recv_raw_obj(uint8_t **outbuf, off_t *size, size_t *hdrlen, |
| 330 | struct imsgbuf *ibuf) |
| 331 | { |
| 332 | const struct got_error *err = NULL((void *)0); |
| 333 | struct imsg imsg; |
| 334 | struct got_imsg_raw_obj *iobj; |
| 335 | size_t datalen; |
| 336 | |
| 337 | *outbuf = NULL((void *)0); |
| 338 | |
| 339 | err = got_privsep_recv_imsg(&imsg, ibuf, 0); |
| 340 | if (err) |
| 341 | return err; |
| 342 | |
| 343 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 344 | |
| 345 | switch (imsg.hdr.type) { |
| 346 | case GOT_IMSG_RAW_OBJECT: |
| 347 | if (datalen < sizeof(*iobj)) { |
| 348 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 349 | break; |
| 350 | } |
| 351 | iobj = imsg.data; |
| 352 | *size = iobj->size; |
| 353 | *hdrlen = iobj->hdrlen; |
| 354 | |
| 355 | if (datalen == sizeof(*iobj)) { |
| 356 | /* Data has been written to file descriptor. */ |
| 357 | break; |
| 358 | } |
| 359 | |
| 360 | if (*size > GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX(16384 - sizeof(struct imsg_hdr) - sizeof(struct got_imsg_raw_obj ))) { |
| 361 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 362 | break; |
| 363 | } |
| 364 | |
| 365 | *outbuf = malloc(*size); |
| 366 | if (*outbuf == NULL((void *)0)) { |
| 367 | err = got_error_from_errno("malloc"); |
| 368 | break; |
| 369 | } |
| 370 | memcpy(*outbuf, imsg.data + sizeof(*iobj), *size); |
| 371 | break; |
| 372 | default: |
| 373 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 374 | break; |
| 375 | } |
| 376 | |
| 377 | imsg_free(&imsg); |
| 378 | |
| 379 | return err; |
| 380 | } |
| 381 | |
| 382 | const struct got_error * |
| 383 | got_privsep_send_commit_req(struct imsgbuf *ibuf, int fd, |
| 384 | struct got_object_id *id, int pack_idx) |
| 385 | { |
| 386 | const struct got_error *err = NULL((void *)0); |
| 387 | struct got_imsg_packed_object iobj, *iobjp; |
| 388 | size_t len; |
| 389 | |
| 390 | if (id) { /* commit is packed */ |
| 391 | iobj.idx = pack_idx; |
| 392 | memcpy(iobj.id, id->sha1, sizeof(iobj.id)); |
| 393 | iobjp = &iobj; |
| 394 | len = sizeof(iobj); |
| 395 | } else { |
| 396 | iobjp = NULL((void *)0); |
| 397 | len = 0; |
| 398 | } |
| 399 | |
| 400 | if (imsg_compose(ibuf, GOT_IMSG_COMMIT_REQUEST, 0, 0, fd, iobjp, len) |
| 401 | == -1) { |
| 402 | err = got_error_from_errno("imsg_compose COMMIT_REQUEST"); |
| 403 | close(fd); |
| 404 | return err; |
| 405 | } |
| 406 | |
| 407 | return flush_imsg(ibuf); |
| 408 | } |
| 409 | |
| 410 | const struct got_error * |
| 411 | got_privsep_send_tree_req(struct imsgbuf *ibuf, int fd, |
| 412 | struct got_object_id *id, int pack_idx) |
| 413 | { |
| 414 | const struct got_error *err = NULL((void *)0); |
| 415 | struct ibuf *wbuf; |
| 416 | size_t len = id ? sizeof(struct got_imsg_packed_object) : 0; |
| 417 | |
| 418 | wbuf = imsg_create(ibuf, GOT_IMSG_TREE_REQUEST, 0, 0, len); |
| 419 | if (wbuf == NULL((void *)0)) |
| 420 | return got_error_from_errno("imsg_create TREE_REQUEST"); |
| 421 | |
| 422 | if (id) { /* tree is packed */ |
| 423 | if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH20) == -1) { |
| 424 | err = got_error_from_errno("imsg_add TREE_ENTRY"); |
| 425 | ibuf_free(wbuf); |
| 426 | return err; |
| 427 | } |
| 428 | |
| 429 | if (imsg_add(wbuf, &pack_idx, sizeof(pack_idx)) == -1) { |
| 430 | err = got_error_from_errno("imsg_add TREE_ENTRY"); |
| 431 | ibuf_free(wbuf); |
| 432 | return err; |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | wbuf->fd = fd; |
| 437 | imsg_close(ibuf, wbuf); |
| 438 | |
| 439 | return flush_imsg(ibuf); |
| 440 | } |
| 441 | |
| 442 | const struct got_error * |
| 443 | got_privsep_send_tag_req(struct imsgbuf *ibuf, int fd, |
| 444 | struct got_object_id *id, int pack_idx) |
| 445 | { |
| 446 | struct got_imsg_packed_object iobj, *iobjp; |
| 447 | size_t len; |
| 448 | |
| 449 | if (id) { /* tag is packed */ |
| 450 | iobj.idx = pack_idx; |
| 451 | memcpy(iobj.id, id->sha1, sizeof(iobj.id)); |
| 452 | iobjp = &iobj; |
| 453 | len = sizeof(iobj); |
| 454 | } else { |
| 455 | iobjp = NULL((void *)0); |
| 456 | len = 0; |
| 457 | } |
| 458 | |
| 459 | if (imsg_compose(ibuf, GOT_IMSG_TAG_REQUEST, 0, 0, fd, iobjp, len) |
| 460 | == -1) |
| 461 | return got_error_from_errno("imsg_compose TAG_REQUEST"); |
| 462 | |
| 463 | return flush_imsg(ibuf); |
| 464 | } |
| 465 | |
| 466 | const struct got_error * |
| 467 | got_privsep_send_blob_req(struct imsgbuf *ibuf, int infd, |
| 468 | struct got_object_id *id, int pack_idx) |
| 469 | { |
| 470 | const struct got_error *err = NULL((void *)0); |
| 471 | struct got_imsg_packed_object iobj, *iobjp; |
| 472 | size_t len; |
| 473 | |
| 474 | if (id) { /* blob is packed */ |
| 475 | iobj.idx = pack_idx; |
| 476 | memcpy(iobj.id, id->sha1, sizeof(iobj.id)); |
| 477 | iobjp = &iobj; |
| 478 | len = sizeof(iobj); |
| 479 | } else { |
| 480 | iobjp = NULL((void *)0); |
| 481 | len = 0; |
| 482 | } |
| 483 | |
| 484 | if (imsg_compose(ibuf, GOT_IMSG_BLOB_REQUEST, 0, 0, infd, iobjp, len) |
| 485 | == -1) { |
| 486 | err = got_error_from_errno("imsg_compose BLOB_REQUEST"); |
| 487 | close(infd); |
| 488 | return err; |
| 489 | } |
| 490 | |
| 491 | return flush_imsg(ibuf); |
| 492 | } |
| 493 | |
| 494 | const struct got_error * |
| 495 | got_privsep_send_blob_outfd(struct imsgbuf *ibuf, int outfd) |
| 496 | { |
| 497 | const struct got_error *err = NULL((void *)0); |
| 498 | |
| 499 | if (imsg_compose(ibuf, GOT_IMSG_BLOB_OUTFD, 0, 0, outfd, NULL((void *)0), 0) |
| 500 | == -1) { |
| 501 | err = got_error_from_errno("imsg_compose BLOB_OUTFD"); |
| 502 | close(outfd); |
| 503 | return err; |
| 504 | } |
| 505 | |
| 506 | return flush_imsg(ibuf); |
| 507 | } |
| 508 | |
| 509 | static const struct got_error * |
| 510 | send_fd(struct imsgbuf *ibuf, int imsg_code, int fd) |
| 511 | { |
| 512 | const struct got_error *err = NULL((void *)0); |
| 513 | |
| 514 | if (imsg_compose(ibuf, imsg_code, 0, 0, fd, NULL((void *)0), 0) == -1) { |
| 515 | err = got_error_from_errno("imsg_compose TMPFD"); |
| 516 | close(fd); |
| 517 | return err; |
| 518 | } |
| 519 | |
| 520 | return flush_imsg(ibuf); |
| 521 | } |
| 522 | |
| 523 | const struct got_error * |
| 524 | got_privsep_send_tmpfd(struct imsgbuf *ibuf, int fd) |
| 525 | { |
| 526 | return send_fd(ibuf, GOT_IMSG_TMPFD, fd); |
| 527 | } |
| 528 | |
| 529 | const struct got_error * |
| 530 | got_privsep_send_obj(struct imsgbuf *ibuf, struct got_object *obj) |
| 531 | { |
| 532 | struct got_imsg_object iobj; |
| 533 | |
| 534 | memcpy(iobj.id, obj->id.sha1, sizeof(iobj.id)); |
| 535 | iobj.type = obj->type; |
| 536 | iobj.flags = obj->flags; |
| 537 | iobj.hdrlen = obj->hdrlen; |
| 538 | iobj.size = obj->size; |
| 539 | if (iobj.flags & GOT_OBJ_FLAG_PACKED0x01) { |
| 540 | iobj.pack_offset = obj->pack_offset; |
| 541 | iobj.pack_idx = obj->pack_idx; |
| 542 | } |
| 543 | |
| 544 | if (imsg_compose(ibuf, GOT_IMSG_OBJECT, 0, 0, -1, &iobj, sizeof(iobj)) |
| 545 | == -1) |
| 546 | return got_error_from_errno("imsg_compose OBJECT"); |
| 547 | |
| 548 | return flush_imsg(ibuf); |
| 549 | } |
| 550 | |
| 551 | const struct got_error * |
| 552 | got_privsep_send_fetch_req(struct imsgbuf *ibuf, int fd, |
| 553 | struct got_pathlist_head *have_refs, int fetch_all_branches, |
| 554 | struct got_pathlist_head *wanted_branches, |
| 555 | struct got_pathlist_head *wanted_refs, int list_refs_only, int verbosity) |
| 556 | { |
| 557 | const struct got_error *err = NULL((void *)0); |
| 558 | struct ibuf *wbuf; |
| 559 | size_t len; |
| 560 | struct got_pathlist_entry *pe; |
| 561 | struct got_imsg_fetch_request fetchreq; |
| 562 | |
| 563 | memset(&fetchreq, 0, sizeof(fetchreq)); |
| 564 | fetchreq.fetch_all_branches = fetch_all_branches; |
| 565 | fetchreq.list_refs_only = list_refs_only; |
| 566 | fetchreq.verbosity = verbosity; |
| 567 | TAILQ_FOREACH(pe, have_refs, entry)for((pe) = ((have_refs)->tqh_first); (pe) != ((void *)0); ( pe) = ((pe)->entry.tqe_next)) |
| 568 | fetchreq.n_have_refs++; |
| 569 | TAILQ_FOREACH(pe, wanted_branches, entry)for((pe) = ((wanted_branches)->tqh_first); (pe) != ((void * )0); (pe) = ((pe)->entry.tqe_next)) |
| 570 | fetchreq.n_wanted_branches++; |
| 571 | TAILQ_FOREACH(pe, wanted_refs, entry)for((pe) = ((wanted_refs)->tqh_first); (pe) != ((void *)0) ; (pe) = ((pe)->entry.tqe_next)) |
| 572 | fetchreq.n_wanted_refs++; |
| 573 | len = sizeof(struct got_imsg_fetch_request); |
| 574 | if (len >= MAX_IMSGSIZE16384 - IMSG_HEADER_SIZEsizeof(struct imsg_hdr)) { |
| 575 | close(fd); |
| 576 | return got_error(GOT_ERR_NO_SPACE9); |
| 577 | } |
| 578 | |
| 579 | if (imsg_compose(ibuf, GOT_IMSG_FETCH_REQUEST, 0, 0, fd, |
| 580 | &fetchreq, sizeof(fetchreq)) == -1) |
| 581 | return got_error_from_errno( |
| 582 | "imsg_compose FETCH_SERVER_PROGRESS"); |
| 583 | |
| 584 | err = flush_imsg(ibuf); |
| 585 | if (err) { |
| 586 | close(fd); |
| 587 | return err; |
| 588 | } |
| 589 | fd = -1; |
Value stored to 'fd' is never read | |
| 590 | |
| 591 | TAILQ_FOREACH(pe, have_refs, entry)for((pe) = ((have_refs)->tqh_first); (pe) != ((void *)0); ( pe) = ((pe)->entry.tqe_next)) { |
| 592 | const char *name = pe->path; |
| 593 | size_t name_len = pe->path_len; |
| 594 | struct got_object_id *id = pe->data; |
| 595 | |
| 596 | len = sizeof(struct got_imsg_fetch_have_ref) + name_len; |
| 597 | wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_HAVE_REF, 0, 0, len); |
| 598 | if (wbuf == NULL((void *)0)) |
| 599 | return got_error_from_errno("imsg_create FETCH_HAVE_REF"); |
| 600 | |
| 601 | /* Keep in sync with struct got_imsg_fetch_have_ref! */ |
| 602 | if (imsg_add(wbuf, id->sha1, sizeof(id->sha1)) == -1) { |
| 603 | err = got_error_from_errno("imsg_add FETCH_HAVE_REF"); |
| 604 | ibuf_free(wbuf); |
| 605 | return err; |
| 606 | } |
| 607 | if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1) { |
| 608 | err = got_error_from_errno("imsg_add FETCH_HAVE_REF"); |
| 609 | ibuf_free(wbuf); |
| 610 | return err; |
| 611 | } |
| 612 | if (imsg_add(wbuf, name, name_len) == -1) { |
| 613 | err = got_error_from_errno("imsg_add FETCH_HAVE_REF"); |
| 614 | ibuf_free(wbuf); |
| 615 | return err; |
| 616 | } |
| 617 | |
| 618 | wbuf->fd = -1; |
| 619 | imsg_close(ibuf, wbuf); |
| 620 | err = flush_imsg(ibuf); |
| 621 | if (err) |
| 622 | return err; |
| 623 | } |
| 624 | |
| 625 | TAILQ_FOREACH(pe, wanted_branches, entry)for((pe) = ((wanted_branches)->tqh_first); (pe) != ((void * )0); (pe) = ((pe)->entry.tqe_next)) { |
| 626 | const char *name = pe->path; |
| 627 | size_t name_len = pe->path_len; |
| 628 | |
| 629 | len = sizeof(struct got_imsg_fetch_wanted_branch) + name_len; |
| 630 | wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_BRANCH, 0, 0, |
| 631 | len); |
| 632 | if (wbuf == NULL((void *)0)) |
| 633 | return got_error_from_errno( |
| 634 | "imsg_create FETCH_WANTED_BRANCH"); |
| 635 | |
| 636 | /* Keep in sync with struct got_imsg_fetch_wanted_branch! */ |
| 637 | if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1) { |
| 638 | err = got_error_from_errno( |
| 639 | "imsg_add FETCH_WANTED_BRANCH"); |
| 640 | ibuf_free(wbuf); |
| 641 | return err; |
| 642 | } |
| 643 | if (imsg_add(wbuf, name, name_len) == -1) { |
| 644 | err = got_error_from_errno( |
| 645 | "imsg_add FETCH_WANTED_BRANCH"); |
| 646 | ibuf_free(wbuf); |
| 647 | return err; |
| 648 | } |
| 649 | |
| 650 | wbuf->fd = -1; |
| 651 | imsg_close(ibuf, wbuf); |
| 652 | err = flush_imsg(ibuf); |
| 653 | if (err) |
| 654 | return err; |
| 655 | } |
| 656 | |
| 657 | TAILQ_FOREACH(pe, wanted_refs, entry)for((pe) = ((wanted_refs)->tqh_first); (pe) != ((void *)0) ; (pe) = ((pe)->entry.tqe_next)) { |
| 658 | const char *name = pe->path; |
| 659 | size_t name_len = pe->path_len; |
| 660 | |
| 661 | len = sizeof(struct got_imsg_fetch_wanted_ref) + name_len; |
| 662 | wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_REF, 0, 0, |
| 663 | len); |
| 664 | if (wbuf == NULL((void *)0)) |
| 665 | return got_error_from_errno( |
| 666 | "imsg_create FETCH_WANTED_REF"); |
| 667 | |
| 668 | /* Keep in sync with struct got_imsg_fetch_wanted_ref! */ |
| 669 | if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1) { |
| 670 | err = got_error_from_errno( |
| 671 | "imsg_add FETCH_WANTED_REF"); |
| 672 | ibuf_free(wbuf); |
| 673 | return err; |
| 674 | } |
| 675 | if (imsg_add(wbuf, name, name_len) == -1) { |
| 676 | err = got_error_from_errno( |
| 677 | "imsg_add FETCH_WANTED_REF"); |
| 678 | ibuf_free(wbuf); |
| 679 | return err; |
| 680 | } |
| 681 | |
| 682 | wbuf->fd = -1; |
| 683 | imsg_close(ibuf, wbuf); |
| 684 | err = flush_imsg(ibuf); |
| 685 | if (err) |
| 686 | return err; |
| 687 | } |
| 688 | |
| 689 | |
| 690 | return NULL((void *)0); |
| 691 | |
| 692 | } |
| 693 | |
| 694 | const struct got_error * |
| 695 | got_privsep_send_fetch_outfd(struct imsgbuf *ibuf, int fd) |
| 696 | { |
| 697 | return send_fd(ibuf, GOT_IMSG_FETCH_OUTFD, fd); |
| 698 | } |
| 699 | |
| 700 | const struct got_error * |
| 701 | got_privsep_recv_fetch_progress(int *done, struct got_object_id **id, |
| 702 | char **refname, struct got_pathlist_head *symrefs, char **server_progress, |
| 703 | off_t *packfile_size, uint8_t *pack_sha1, struct imsgbuf *ibuf) |
| 704 | { |
| 705 | const struct got_error *err = NULL((void *)0); |
| 706 | struct imsg imsg; |
| 707 | size_t datalen; |
| 708 | struct got_imsg_fetch_symrefs *isymrefs = NULL((void *)0); |
| 709 | size_t n, remain; |
| 710 | off_t off; |
| 711 | int i; |
| 712 | |
| 713 | *done = 0; |
| 714 | *id = NULL((void *)0); |
| 715 | *refname = NULL((void *)0); |
| 716 | *server_progress = NULL((void *)0); |
| 717 | *packfile_size = 0; |
| 718 | memset(pack_sha1, 0, SHA1_DIGEST_LENGTH20); |
| 719 | |
| 720 | err = got_privsep_recv_imsg(&imsg, ibuf, 0); |
| 721 | if (err) |
| 722 | return err; |
| 723 | |
| 724 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 725 | switch (imsg.hdr.type) { |
| 726 | case GOT_IMSG_ERROR: |
| 727 | if (datalen < sizeof(struct got_imsg_error)) { |
| 728 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 729 | break; |
| 730 | } |
| 731 | err = recv_imsg_error(&imsg, datalen); |
| 732 | break; |
| 733 | case GOT_IMSG_FETCH_SYMREFS: |
| 734 | if (datalen < sizeof(*isymrefs)) { |
| 735 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 736 | break; |
| 737 | } |
| 738 | if (isymrefs != NULL((void *)0)) { |
| 739 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 740 | break; |
| 741 | } |
| 742 | isymrefs = (struct got_imsg_fetch_symrefs *)imsg.data; |
| 743 | off = sizeof(*isymrefs); |
| 744 | remain = datalen - off; |
| 745 | for (n = 0; n < isymrefs->nsymrefs; n++) { |
| 746 | struct got_imsg_fetch_symref *s; |
| 747 | char *name, *target; |
| 748 | if (remain < sizeof(struct got_imsg_fetch_symref)) { |
| 749 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 750 | goto done; |
| 751 | } |
| 752 | s = (struct got_imsg_fetch_symref *)(imsg.data + off); |
| 753 | off += sizeof(*s); |
| 754 | remain -= sizeof(*s); |
| 755 | if (remain < s->name_len) { |
| 756 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 757 | goto done; |
| 758 | } |
| 759 | name = strndup(imsg.data + off, s->name_len); |
| 760 | if (name == NULL((void *)0)) { |
| 761 | err = got_error_from_errno("strndup"); |
| 762 | goto done; |
| 763 | } |
| 764 | off += s->name_len; |
| 765 | remain -= s->name_len; |
| 766 | if (remain < s->target_len) { |
| 767 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 768 | free(name); |
| 769 | goto done; |
| 770 | } |
| 771 | target = strndup(imsg.data + off, s->target_len); |
| 772 | if (target == NULL((void *)0)) { |
| 773 | err = got_error_from_errno("strndup"); |
| 774 | free(name); |
| 775 | goto done; |
| 776 | } |
| 777 | off += s->target_len; |
| 778 | remain -= s->target_len; |
| 779 | err = got_pathlist_append(symrefs, name, target); |
| 780 | if (err) { |
| 781 | free(name); |
| 782 | free(target); |
| 783 | goto done; |
| 784 | } |
| 785 | } |
| 786 | break; |
| 787 | case GOT_IMSG_FETCH_REF: |
| 788 | if (datalen <= SHA1_DIGEST_LENGTH20) { |
| 789 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 790 | break; |
| 791 | } |
| 792 | *id = malloc(sizeof(**id)); |
| 793 | if (*id == NULL((void *)0)) { |
| 794 | err = got_error_from_errno("malloc"); |
| 795 | break; |
| 796 | } |
| 797 | memcpy((*id)->sha1, imsg.data, SHA1_DIGEST_LENGTH20); |
| 798 | *refname = strndup(imsg.data + SHA1_DIGEST_LENGTH20, |
| 799 | datalen - SHA1_DIGEST_LENGTH20); |
| 800 | if (*refname == NULL((void *)0)) { |
| 801 | err = got_error_from_errno("strndup"); |
| 802 | break; |
| 803 | } |
| 804 | break; |
| 805 | case GOT_IMSG_FETCH_SERVER_PROGRESS: |
| 806 | if (datalen == 0) { |
| 807 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 808 | break; |
| 809 | } |
| 810 | *server_progress = strndup(imsg.data, datalen); |
| 811 | if (*server_progress == NULL((void *)0)) { |
| 812 | err = got_error_from_errno("strndup"); |
| 813 | break; |
| 814 | } |
| 815 | for (i = 0; i < datalen; i++) { |
| 816 | if (!isprint((unsigned char)(*server_progress)[i]) && |
| 817 | !isspace((unsigned char)(*server_progress)[i])) { |
| 818 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 819 | free(*server_progress); |
| 820 | *server_progress = NULL((void *)0); |
| 821 | goto done; |
| 822 | } |
| 823 | } |
| 824 | break; |
| 825 | case GOT_IMSG_FETCH_DOWNLOAD_PROGRESS: |
| 826 | if (datalen < sizeof(*packfile_size)) { |
| 827 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 828 | break; |
| 829 | } |
| 830 | memcpy(packfile_size, imsg.data, sizeof(*packfile_size)); |
| 831 | break; |
| 832 | case GOT_IMSG_FETCH_DONE: |
| 833 | if (datalen != SHA1_DIGEST_LENGTH20) { |
| 834 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 835 | break; |
| 836 | } |
| 837 | memcpy(pack_sha1, imsg.data, SHA1_DIGEST_LENGTH20); |
| 838 | *done = 1; |
| 839 | break; |
| 840 | default: |
| 841 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 842 | break; |
| 843 | } |
| 844 | done: |
| 845 | if (err) { |
| 846 | free(*id); |
| 847 | *id = NULL((void *)0); |
| 848 | free(*refname); |
| 849 | *refname = NULL((void *)0); |
| 850 | } |
| 851 | imsg_free(&imsg); |
| 852 | return err; |
| 853 | } |
| 854 | |
| 855 | const struct got_error * |
| 856 | got_privsep_send_index_pack_req(struct imsgbuf *ibuf, uint8_t *pack_sha1, |
| 857 | int fd) |
| 858 | { |
| 859 | const struct got_error *err = NULL((void *)0); |
| 860 | |
| 861 | /* Keep in sync with struct got_imsg_index_pack_request */ |
| 862 | if (imsg_compose(ibuf, GOT_IMSG_IDXPACK_REQUEST, 0, 0, fd, |
| 863 | pack_sha1, SHA1_DIGEST_LENGTH20) == -1) { |
| 864 | err = got_error_from_errno("imsg_compose INDEX_REQUEST"); |
| 865 | close(fd); |
| 866 | return err; |
| 867 | } |
| 868 | return flush_imsg(ibuf); |
| 869 | } |
| 870 | |
| 871 | const struct got_error * |
| 872 | got_privsep_send_index_pack_outfd(struct imsgbuf *ibuf, int fd) |
| 873 | { |
| 874 | return send_fd(ibuf, GOT_IMSG_IDXPACK_OUTFD, fd); |
| 875 | } |
| 876 | |
| 877 | const struct got_error * |
| 878 | got_privsep_recv_index_progress(int *done, int *nobj_total, |
| 879 | int *nobj_indexed, int *nobj_loose, int *nobj_resolved, |
| 880 | struct imsgbuf *ibuf) |
| 881 | { |
| 882 | const struct got_error *err = NULL((void *)0); |
| 883 | struct imsg imsg; |
| 884 | struct got_imsg_index_pack_progress *iprogress; |
| 885 | size_t datalen; |
| 886 | |
| 887 | *done = 0; |
| 888 | *nobj_total = 0; |
| 889 | *nobj_indexed = 0; |
| 890 | *nobj_resolved = 0; |
| 891 | |
| 892 | err = got_privsep_recv_imsg(&imsg, ibuf, 0); |
| 893 | if (err) |
| 894 | return err; |
| 895 | |
| 896 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 897 | switch (imsg.hdr.type) { |
| 898 | case GOT_IMSG_ERROR: |
| 899 | if (datalen < sizeof(struct got_imsg_error)) { |
| 900 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 901 | break; |
| 902 | } |
| 903 | err = recv_imsg_error(&imsg, datalen); |
| 904 | break; |
| 905 | case GOT_IMSG_IDXPACK_PROGRESS: |
| 906 | if (datalen < sizeof(*iprogress)) { |
| 907 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 908 | break; |
| 909 | } |
| 910 | iprogress = (struct got_imsg_index_pack_progress *)imsg.data; |
| 911 | *nobj_total = iprogress->nobj_total; |
| 912 | *nobj_indexed = iprogress->nobj_indexed; |
| 913 | *nobj_loose = iprogress->nobj_loose; |
| 914 | *nobj_resolved = iprogress->nobj_resolved; |
| 915 | break; |
| 916 | case GOT_IMSG_IDXPACK_DONE: |
| 917 | if (datalen != 0) { |
| 918 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 919 | break; |
| 920 | } |
| 921 | *done = 1; |
| 922 | break; |
| 923 | default: |
| 924 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 925 | break; |
| 926 | } |
| 927 | |
| 928 | imsg_free(&imsg); |
| 929 | return err; |
| 930 | } |
| 931 | |
| 932 | const struct got_error * |
| 933 | got_privsep_get_imsg_obj(struct got_object **obj, struct imsg *imsg, |
| 934 | struct imsgbuf *ibuf) |
| 935 | { |
| 936 | const struct got_error *err = NULL((void *)0); |
| 937 | struct got_imsg_object *iobj; |
| 938 | size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 939 | |
| 940 | if (datalen != sizeof(*iobj)) |
| 941 | return got_error(GOT_ERR_PRIVSEP_LEN36); |
| 942 | iobj = imsg->data; |
| 943 | |
| 944 | *obj = calloc(1, sizeof(**obj)); |
| 945 | if (*obj == NULL((void *)0)) |
| 946 | return got_error_from_errno("calloc"); |
| 947 | |
| 948 | memcpy((*obj)->id.sha1, iobj->id, SHA1_DIGEST_LENGTH20); |
| 949 | (*obj)->type = iobj->type; |
| 950 | (*obj)->flags = iobj->flags; |
| 951 | (*obj)->hdrlen = iobj->hdrlen; |
| 952 | (*obj)->size = iobj->size; |
| 953 | /* path_packfile is handled by caller */ |
| 954 | if (iobj->flags & GOT_OBJ_FLAG_PACKED0x01) { |
| 955 | (*obj)->pack_offset = iobj->pack_offset; |
| 956 | (*obj)->pack_idx = iobj->pack_idx; |
| 957 | } |
| 958 | |
| 959 | return err; |
| 960 | } |
| 961 | |
| 962 | const struct got_error * |
| 963 | got_privsep_recv_obj(struct got_object **obj, struct imsgbuf *ibuf) |
| 964 | { |
| 965 | const struct got_error *err = NULL((void *)0); |
| 966 | struct imsg imsg; |
| 967 | const size_t min_datalen = |
| 968 | MIN(sizeof(struct got_imsg_error), sizeof(struct got_imsg_object))((sizeof(struct got_imsg_error)) < (sizeof(struct got_imsg_object )) ? (sizeof(struct got_imsg_error)) : (sizeof(struct got_imsg_object ))); |
| 969 | |
| 970 | *obj = NULL((void *)0); |
| 971 | |
| 972 | err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen); |
| 973 | if (err) |
| 974 | return err; |
| 975 | |
| 976 | switch (imsg.hdr.type) { |
| 977 | case GOT_IMSG_OBJECT: |
| 978 | err = got_privsep_get_imsg_obj(obj, &imsg, ibuf); |
| 979 | break; |
| 980 | default: |
| 981 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 982 | break; |
| 983 | } |
| 984 | |
| 985 | imsg_free(&imsg); |
| 986 | |
| 987 | return err; |
| 988 | } |
| 989 | |
| 990 | static const struct got_error * |
| 991 | send_commit_logmsg(struct imsgbuf *ibuf, struct got_commit_object *commit, |
| 992 | size_t logmsg_len) |
| 993 | { |
| 994 | const struct got_error *err = NULL((void *)0); |
| 995 | size_t offset, remain; |
| 996 | |
| 997 | offset = 0; |
| 998 | remain = logmsg_len; |
| 999 | while (remain > 0) { |
| 1000 | size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain)((16384 - sizeof(struct imsg_hdr)) < (remain) ? (16384 - sizeof (struct imsg_hdr)) : (remain)); |
| 1001 | |
| 1002 | if (imsg_compose(ibuf, GOT_IMSG_COMMIT_LOGMSG, 0, 0, -1, |
| 1003 | commit->logmsg + offset, n) == -1) { |
| 1004 | err = got_error_from_errno("imsg_compose " |
| 1005 | "COMMIT_LOGMSG"); |
| 1006 | break; |
| 1007 | } |
| 1008 | |
| 1009 | err = flush_imsg(ibuf); |
| 1010 | if (err) |
| 1011 | break; |
| 1012 | |
| 1013 | offset += n; |
| 1014 | remain -= n; |
| 1015 | } |
| 1016 | |
| 1017 | return err; |
| 1018 | } |
| 1019 | |
| 1020 | const struct got_error * |
| 1021 | got_privsep_send_commit(struct imsgbuf *ibuf, struct got_commit_object *commit) |
| 1022 | { |
| 1023 | const struct got_error *err = NULL((void *)0); |
| 1024 | struct got_imsg_commit_object *icommit; |
| 1025 | uint8_t *buf; |
| 1026 | size_t len, total; |
| 1027 | struct got_object_qid *qid; |
| 1028 | size_t author_len = strlen(commit->author); |
| 1029 | size_t committer_len = strlen(commit->committer); |
| 1030 | size_t logmsg_len = strlen(commit->logmsg); |
| 1031 | |
| 1032 | total = sizeof(*icommit) + author_len + committer_len + |
| 1033 | commit->nparents * SHA1_DIGEST_LENGTH20; |
| 1034 | |
| 1035 | buf = malloc(total); |
| 1036 | if (buf == NULL((void *)0)) |
| 1037 | return got_error_from_errno("malloc"); |
| 1038 | |
| 1039 | icommit = (struct got_imsg_commit_object *)buf; |
| 1040 | memcpy(icommit->tree_id, commit->tree_id->sha1, |
| 1041 | sizeof(icommit->tree_id)); |
| 1042 | icommit->author_len = author_len; |
| 1043 | icommit->author_time = commit->author_time; |
| 1044 | icommit->author_gmtoff = commit->author_gmtoff; |
| 1045 | icommit->committer_len = committer_len; |
| 1046 | icommit->committer_time = commit->committer_time; |
| 1047 | icommit->committer_gmtoff = commit->committer_gmtoff; |
| 1048 | icommit->logmsg_len = logmsg_len; |
| 1049 | icommit->nparents = commit->nparents; |
| 1050 | |
| 1051 | len = sizeof(*icommit); |
| 1052 | memcpy(buf + len, commit->author, author_len); |
| 1053 | len += author_len; |
| 1054 | memcpy(buf + len, commit->committer, committer_len); |
| 1055 | len += committer_len; |
| 1056 | SIMPLEQ_FOREACH(qid, &commit->parent_ids, entry)for((qid) = ((&commit->parent_ids)->sqh_first); (qid ) != ((void *)0); (qid) = ((qid)->entry.sqe_next)) { |
| 1057 | memcpy(buf + len, qid->id, SHA1_DIGEST_LENGTH20); |
| 1058 | len += SHA1_DIGEST_LENGTH20; |
| 1059 | } |
| 1060 | |
| 1061 | if (imsg_compose(ibuf, GOT_IMSG_COMMIT, 0, 0, -1, buf, len) == -1) { |
| 1062 | err = got_error_from_errno("imsg_compose COMMIT"); |
| 1063 | goto done; |
| 1064 | } |
| 1065 | |
| 1066 | if (logmsg_len == 0 || |
| 1067 | logmsg_len + len > MAX_IMSGSIZE16384 - IMSG_HEADER_SIZEsizeof(struct imsg_hdr)) { |
| 1068 | err = flush_imsg(ibuf); |
| 1069 | if (err) |
| 1070 | goto done; |
| 1071 | } |
| 1072 | err = send_commit_logmsg(ibuf, commit, logmsg_len); |
| 1073 | done: |
| 1074 | free(buf); |
| 1075 | return err; |
| 1076 | } |
| 1077 | |
| 1078 | static const struct got_error * |
| 1079 | get_commit_from_imsg(struct got_commit_object **commit, |
| 1080 | struct imsg *imsg, size_t datalen, struct imsgbuf *ibuf) |
| 1081 | { |
| 1082 | const struct got_error *err = NULL((void *)0); |
| 1083 | struct got_imsg_commit_object *icommit; |
| 1084 | size_t len = 0; |
| 1085 | int i; |
| 1086 | |
| 1087 | if (datalen < sizeof(*icommit)) |
| 1088 | return got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1089 | |
| 1090 | icommit = imsg->data; |
| 1091 | if (datalen != sizeof(*icommit) + icommit->author_len + |
| 1092 | icommit->committer_len + |
| 1093 | icommit->nparents * SHA1_DIGEST_LENGTH20) |
| 1094 | return got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1095 | |
| 1096 | if (icommit->nparents < 0) |
| 1097 | return got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1098 | |
| 1099 | len += sizeof(*icommit); |
| 1100 | |
| 1101 | *commit = got_object_commit_alloc_partial(); |
| 1102 | if (*commit == NULL((void *)0)) |
| 1103 | return got_error_from_errno( |
| 1104 | "got_object_commit_alloc_partial"); |
| 1105 | |
| 1106 | memcpy((*commit)->tree_id->sha1, icommit->tree_id, |
| 1107 | SHA1_DIGEST_LENGTH20); |
| 1108 | (*commit)->author_time = icommit->author_time; |
| 1109 | (*commit)->author_gmtoff = icommit->author_gmtoff; |
| 1110 | (*commit)->committer_time = icommit->committer_time; |
| 1111 | (*commit)->committer_gmtoff = icommit->committer_gmtoff; |
| 1112 | |
| 1113 | if (icommit->author_len == 0) { |
| 1114 | (*commit)->author = strdup(""); |
| 1115 | if ((*commit)->author == NULL((void *)0)) { |
| 1116 | err = got_error_from_errno("strdup"); |
| 1117 | goto done; |
| 1118 | } |
| 1119 | } else { |
| 1120 | (*commit)->author = malloc(icommit->author_len + 1); |
| 1121 | if ((*commit)->author == NULL((void *)0)) { |
| 1122 | err = got_error_from_errno("malloc"); |
| 1123 | goto done; |
| 1124 | } |
| 1125 | memcpy((*commit)->author, imsg->data + len, |
| 1126 | icommit->author_len); |
| 1127 | (*commit)->author[icommit->author_len] = '\0'; |
| 1128 | } |
| 1129 | len += icommit->author_len; |
| 1130 | |
| 1131 | if (icommit->committer_len == 0) { |
| 1132 | (*commit)->committer = strdup(""); |
| 1133 | if ((*commit)->committer == NULL((void *)0)) { |
| 1134 | err = got_error_from_errno("strdup"); |
| 1135 | goto done; |
| 1136 | } |
| 1137 | } else { |
| 1138 | (*commit)->committer = |
| 1139 | malloc(icommit->committer_len + 1); |
| 1140 | if ((*commit)->committer == NULL((void *)0)) { |
| 1141 | err = got_error_from_errno("malloc"); |
| 1142 | goto done; |
| 1143 | } |
| 1144 | memcpy((*commit)->committer, imsg->data + len, |
| 1145 | icommit->committer_len); |
| 1146 | (*commit)->committer[icommit->committer_len] = '\0'; |
| 1147 | } |
| 1148 | len += icommit->committer_len; |
| 1149 | |
| 1150 | if (icommit->logmsg_len == 0) { |
| 1151 | (*commit)->logmsg = strdup(""); |
| 1152 | if ((*commit)->logmsg == NULL((void *)0)) { |
| 1153 | err = got_error_from_errno("strdup"); |
| 1154 | goto done; |
| 1155 | } |
| 1156 | } else { |
| 1157 | size_t offset = 0, remain = icommit->logmsg_len; |
| 1158 | |
| 1159 | (*commit)->logmsg = malloc(icommit->logmsg_len + 1); |
| 1160 | if ((*commit)->logmsg == NULL((void *)0)) { |
| 1161 | err = got_error_from_errno("malloc"); |
| 1162 | goto done; |
| 1163 | } |
| 1164 | while (remain > 0) { |
| 1165 | struct imsg imsg_log; |
| 1166 | size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,((16384 - sizeof(struct imsg_hdr)) < (remain) ? (16384 - sizeof (struct imsg_hdr)) : (remain)) |
| 1167 | remain)((16384 - sizeof(struct imsg_hdr)) < (remain) ? (16384 - sizeof (struct imsg_hdr)) : (remain)); |
| 1168 | |
| 1169 | err = got_privsep_recv_imsg(&imsg_log, ibuf, n); |
| 1170 | if (err) |
| 1171 | goto done; |
| 1172 | |
| 1173 | if (imsg_log.hdr.type != GOT_IMSG_COMMIT_LOGMSG) { |
| 1174 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1175 | goto done; |
| 1176 | } |
| 1177 | |
| 1178 | memcpy((*commit)->logmsg + offset, |
| 1179 | imsg_log.data, n); |
| 1180 | imsg_free(&imsg_log); |
| 1181 | offset += n; |
| 1182 | remain -= n; |
| 1183 | } |
| 1184 | (*commit)->logmsg[icommit->logmsg_len] = '\0'; |
| 1185 | } |
| 1186 | |
| 1187 | for (i = 0; i < icommit->nparents; i++) { |
| 1188 | struct got_object_qid *qid; |
| 1189 | |
| 1190 | err = got_object_qid_alloc_partial(&qid); |
| 1191 | if (err) |
| 1192 | break; |
| 1193 | memcpy(qid->id, imsg->data + len + |
| 1194 | i * SHA1_DIGEST_LENGTH20, sizeof(*qid->id)); |
| 1195 | SIMPLEQ_INSERT_TAIL(&(*commit)->parent_ids, qid, entry)do { (qid)->entry.sqe_next = ((void *)0); *(&(*commit) ->parent_ids)->sqh_last = (qid); (&(*commit)->parent_ids )->sqh_last = &(qid)->entry.sqe_next; } while (0); |
| 1196 | (*commit)->nparents++; |
| 1197 | } |
| 1198 | done: |
| 1199 | if (err) { |
| 1200 | got_object_commit_close(*commit); |
| 1201 | *commit = NULL((void *)0); |
| 1202 | } |
| 1203 | return err; |
| 1204 | } |
| 1205 | |
| 1206 | const struct got_error * |
| 1207 | got_privsep_recv_commit(struct got_commit_object **commit, struct imsgbuf *ibuf) |
| 1208 | { |
| 1209 | const struct got_error *err = NULL((void *)0); |
| 1210 | struct imsg imsg; |
| 1211 | size_t datalen; |
| 1212 | const size_t min_datalen = |
| 1213 | MIN(sizeof(struct got_imsg_error),((sizeof(struct got_imsg_error)) < (sizeof(struct got_imsg_commit_object )) ? (sizeof(struct got_imsg_error)) : (sizeof(struct got_imsg_commit_object ))) |
| 1214 | sizeof(struct got_imsg_commit_object))((sizeof(struct got_imsg_error)) < (sizeof(struct got_imsg_commit_object )) ? (sizeof(struct got_imsg_error)) : (sizeof(struct got_imsg_commit_object ))); |
| 1215 | |
| 1216 | *commit = NULL((void *)0); |
| 1217 | |
| 1218 | err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen); |
| 1219 | if (err) |
| 1220 | return err; |
| 1221 | |
| 1222 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 1223 | |
| 1224 | switch (imsg.hdr.type) { |
| 1225 | case GOT_IMSG_COMMIT: |
| 1226 | err = get_commit_from_imsg(commit, &imsg, datalen, ibuf); |
| 1227 | break; |
| 1228 | default: |
| 1229 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1230 | break; |
| 1231 | } |
| 1232 | |
| 1233 | imsg_free(&imsg); |
| 1234 | |
| 1235 | return err; |
| 1236 | } |
| 1237 | |
| 1238 | const struct got_error * |
| 1239 | got_privsep_send_tree(struct imsgbuf *ibuf, struct got_pathlist_head *entries, |
| 1240 | int nentries) |
| 1241 | { |
| 1242 | const struct got_error *err = NULL((void *)0); |
| 1243 | struct got_imsg_tree_object itree; |
| 1244 | struct got_pathlist_entry *pe; |
| 1245 | size_t totlen; |
| 1246 | int nimsg; /* number of imsg queued in ibuf */ |
| 1247 | |
| 1248 | itree.nentries = nentries; |
| 1249 | if (imsg_compose(ibuf, GOT_IMSG_TREE, 0, 0, -1, &itree, sizeof(itree)) |
| 1250 | == -1) |
| 1251 | return got_error_from_errno("imsg_compose TREE"); |
| 1252 | |
| 1253 | totlen = sizeof(itree); |
| 1254 | nimsg = 1; |
| 1255 | TAILQ_FOREACH(pe, entries, entry)for((pe) = ((entries)->tqh_first); (pe) != ((void *)0); (pe ) = ((pe)->entry.tqe_next)) { |
| 1256 | const char *name = pe->path; |
| 1257 | struct got_parsed_tree_entry *pte = pe->data; |
| 1258 | struct ibuf *wbuf; |
| 1259 | size_t namelen = strlen(name); |
| 1260 | size_t len = sizeof(struct got_imsg_tree_entry) + namelen; |
| 1261 | |
| 1262 | if (len > MAX_IMSGSIZE16384) |
| 1263 | return got_error(GOT_ERR_NO_SPACE9); |
| 1264 | |
| 1265 | nimsg++; |
| 1266 | if (totlen + len >= MAX_IMSGSIZE16384 - (IMSG_HEADER_SIZEsizeof(struct imsg_hdr) * nimsg)) { |
| 1267 | err = flush_imsg(ibuf); |
| 1268 | if (err) |
| 1269 | return err; |
| 1270 | nimsg = 0; |
| 1271 | } |
| 1272 | |
| 1273 | wbuf = imsg_create(ibuf, GOT_IMSG_TREE_ENTRY, 0, 0, len); |
| 1274 | if (wbuf == NULL((void *)0)) |
| 1275 | return got_error_from_errno("imsg_create TREE_ENTRY"); |
| 1276 | |
| 1277 | /* Keep in sync with struct got_imsg_tree_object definition! */ |
| 1278 | if (imsg_add(wbuf, pte->id, SHA1_DIGEST_LENGTH20) == -1) { |
| 1279 | err = got_error_from_errno("imsg_add TREE_ENTRY"); |
| 1280 | ibuf_free(wbuf); |
| 1281 | return err; |
| 1282 | } |
| 1283 | if (imsg_add(wbuf, &pte->mode, sizeof(pte->mode)) == -1) { |
| 1284 | err = got_error_from_errno("imsg_add TREE_ENTRY"); |
| 1285 | ibuf_free(wbuf); |
| 1286 | return err; |
| 1287 | } |
| 1288 | |
| 1289 | if (imsg_add(wbuf, name, namelen) == -1) { |
| 1290 | err = got_error_from_errno("imsg_add TREE_ENTRY"); |
| 1291 | ibuf_free(wbuf); |
| 1292 | return err; |
| 1293 | } |
| 1294 | |
| 1295 | wbuf->fd = -1; |
| 1296 | imsg_close(ibuf, wbuf); |
| 1297 | |
| 1298 | totlen += len; |
| 1299 | } |
| 1300 | |
| 1301 | return flush_imsg(ibuf); |
| 1302 | } |
| 1303 | |
| 1304 | const struct got_error * |
| 1305 | got_privsep_recv_tree(struct got_tree_object **tree, struct imsgbuf *ibuf) |
| 1306 | { |
| 1307 | const struct got_error *err = NULL((void *)0); |
| 1308 | const size_t min_datalen = |
| 1309 | MIN(sizeof(struct got_imsg_error),((sizeof(struct got_imsg_error)) < (sizeof(struct got_imsg_tree_object )) ? (sizeof(struct got_imsg_error)) : (sizeof(struct got_imsg_tree_object ))) |
| 1310 | sizeof(struct got_imsg_tree_object))((sizeof(struct got_imsg_error)) < (sizeof(struct got_imsg_tree_object )) ? (sizeof(struct got_imsg_error)) : (sizeof(struct got_imsg_tree_object ))); |
| 1311 | struct got_imsg_tree_object *itree; |
| 1312 | int nentries = 0; |
| 1313 | |
| 1314 | *tree = NULL((void *)0); |
| 1315 | get_more: |
| 1316 | err = read_imsg(ibuf); |
| 1317 | if (err) |
| 1318 | goto done; |
| 1319 | |
| 1320 | for (;;) { |
| 1321 | struct imsg imsg; |
| 1322 | size_t n; |
| 1323 | size_t datalen; |
| 1324 | struct got_imsg_tree_entry *ite; |
| 1325 | struct got_tree_entry *te = NULL((void *)0); |
| 1326 | |
| 1327 | n = imsg_get(ibuf, &imsg); |
| 1328 | if (n == 0) { |
| 1329 | if (*tree && (*tree)->nentries != nentries) |
| 1330 | goto get_more; |
| 1331 | break; |
| 1332 | } |
| 1333 | |
| 1334 | if (imsg.hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + min_datalen) { |
| 1335 | imsg_free(&imsg); |
| 1336 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1337 | break; |
| 1338 | } |
| 1339 | |
| 1340 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 1341 | |
| 1342 | switch (imsg.hdr.type) { |
| 1343 | case GOT_IMSG_ERROR: |
| 1344 | err = recv_imsg_error(&imsg, datalen); |
| 1345 | break; |
| 1346 | case GOT_IMSG_TREE: |
| 1347 | /* This message should only appear once. */ |
| 1348 | if (*tree != NULL((void *)0)) { |
| 1349 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1350 | break; |
| 1351 | } |
| 1352 | if (datalen != sizeof(*itree)) { |
| 1353 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1354 | break; |
| 1355 | } |
| 1356 | itree = imsg.data; |
| 1357 | *tree = malloc(sizeof(**tree)); |
| 1358 | if (*tree == NULL((void *)0)) { |
| 1359 | err = got_error_from_errno("malloc"); |
| 1360 | break; |
| 1361 | } |
| 1362 | (*tree)->entries = calloc(itree->nentries, |
| 1363 | sizeof(struct got_tree_entry)); |
| 1364 | if ((*tree)->entries == NULL((void *)0)) { |
| 1365 | err = got_error_from_errno("malloc"); |
| 1366 | break; |
| 1367 | } |
| 1368 | (*tree)->nentries = itree->nentries; |
| 1369 | (*tree)->refcnt = 0; |
| 1370 | break; |
| 1371 | case GOT_IMSG_TREE_ENTRY: |
| 1372 | /* This message should be preceeded by GOT_IMSG_TREE. */ |
| 1373 | if (*tree == NULL((void *)0)) { |
| 1374 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1375 | break; |
| 1376 | } |
| 1377 | if (datalen < sizeof(*ite) || datalen > MAX_IMSGSIZE16384) { |
| 1378 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1379 | break; |
| 1380 | } |
| 1381 | |
| 1382 | /* Remaining data contains the entry's name. */ |
| 1383 | datalen -= sizeof(*ite); |
| 1384 | if (datalen == 0 || datalen > MAX_IMSGSIZE16384) { |
| 1385 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1386 | break; |
| 1387 | } |
| 1388 | ite = imsg.data; |
| 1389 | |
| 1390 | if (datalen + 1 > sizeof(te->name)) { |
| 1391 | err = got_error(GOT_ERR_NO_SPACE9); |
| 1392 | break; |
| 1393 | } |
| 1394 | te = &(*tree)->entries[nentries]; |
| 1395 | memcpy(te->name, imsg.data + sizeof(*ite), datalen); |
| 1396 | te->name[datalen] = '\0'; |
| 1397 | |
| 1398 | memcpy(te->id.sha1, ite->id, SHA1_DIGEST_LENGTH20); |
| 1399 | te->mode = ite->mode; |
| 1400 | te->idx = nentries; |
| 1401 | nentries++; |
| 1402 | break; |
| 1403 | default: |
| 1404 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1405 | break; |
| 1406 | } |
| 1407 | |
| 1408 | imsg_free(&imsg); |
| 1409 | if (err) |
| 1410 | break; |
| 1411 | } |
| 1412 | done: |
| 1413 | if (*tree && (*tree)->nentries != nentries) { |
| 1414 | if (err == NULL((void *)0)) |
| 1415 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1416 | got_object_tree_close(*tree); |
| 1417 | *tree = NULL((void *)0); |
| 1418 | } |
| 1419 | |
| 1420 | return err; |
| 1421 | } |
| 1422 | |
| 1423 | const struct got_error * |
| 1424 | got_privsep_send_blob(struct imsgbuf *ibuf, size_t size, size_t hdrlen, |
| 1425 | const uint8_t *data) |
| 1426 | { |
| 1427 | struct got_imsg_blob iblob; |
| 1428 | |
| 1429 | iblob.size = size; |
| 1430 | iblob.hdrlen = hdrlen; |
| 1431 | |
| 1432 | if (data) { |
| 1433 | uint8_t *buf; |
| 1434 | |
| 1435 | if (size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX(16384 - sizeof(struct imsg_hdr) - sizeof(struct got_imsg_blob ))) |
| 1436 | return got_error(GOT_ERR_NO_SPACE9); |
| 1437 | |
| 1438 | buf = malloc(sizeof(iblob) + size); |
| 1439 | if (buf == NULL((void *)0)) |
| 1440 | return got_error_from_errno("malloc"); |
| 1441 | |
| 1442 | memcpy(buf, &iblob, sizeof(iblob)); |
| 1443 | memcpy(buf + sizeof(iblob), data, size); |
| 1444 | if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, buf, |
| 1445 | sizeof(iblob) + size) == -1) { |
| 1446 | free(buf); |
| 1447 | return got_error_from_errno("imsg_compose BLOB"); |
| 1448 | } |
| 1449 | free(buf); |
| 1450 | } else { |
| 1451 | /* Data has already been written to file descriptor. */ |
| 1452 | if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, &iblob, |
| 1453 | sizeof(iblob)) == -1) |
| 1454 | return got_error_from_errno("imsg_compose BLOB"); |
| 1455 | } |
| 1456 | |
| 1457 | |
| 1458 | return flush_imsg(ibuf); |
| 1459 | } |
| 1460 | |
| 1461 | const struct got_error * |
| 1462 | got_privsep_recv_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen, |
| 1463 | struct imsgbuf *ibuf) |
| 1464 | { |
| 1465 | const struct got_error *err = NULL((void *)0); |
| 1466 | struct imsg imsg; |
| 1467 | struct got_imsg_blob *iblob; |
| 1468 | size_t datalen; |
| 1469 | |
| 1470 | *outbuf = NULL((void *)0); |
| 1471 | |
| 1472 | err = got_privsep_recv_imsg(&imsg, ibuf, 0); |
| 1473 | if (err) |
| 1474 | return err; |
| 1475 | |
| 1476 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 1477 | |
| 1478 | switch (imsg.hdr.type) { |
| 1479 | case GOT_IMSG_BLOB: |
| 1480 | if (datalen < sizeof(*iblob)) { |
| 1481 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1482 | break; |
| 1483 | } |
| 1484 | iblob = imsg.data; |
| 1485 | *size = iblob->size; |
| 1486 | *hdrlen = iblob->hdrlen; |
| 1487 | |
| 1488 | if (datalen == sizeof(*iblob)) { |
| 1489 | /* Data has been written to file descriptor. */ |
| 1490 | break; |
| 1491 | } |
| 1492 | |
| 1493 | if (*size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX(16384 - sizeof(struct imsg_hdr) - sizeof(struct got_imsg_blob ))) { |
| 1494 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1495 | break; |
| 1496 | } |
| 1497 | |
| 1498 | *outbuf = malloc(*size); |
| 1499 | if (*outbuf == NULL((void *)0)) { |
| 1500 | err = got_error_from_errno("malloc"); |
| 1501 | break; |
| 1502 | } |
| 1503 | memcpy(*outbuf, imsg.data + sizeof(*iblob), *size); |
| 1504 | break; |
| 1505 | default: |
| 1506 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1507 | break; |
| 1508 | } |
| 1509 | |
| 1510 | imsg_free(&imsg); |
| 1511 | |
| 1512 | return err; |
| 1513 | } |
| 1514 | |
| 1515 | static const struct got_error * |
| 1516 | send_tagmsg(struct imsgbuf *ibuf, struct got_tag_object *tag, size_t tagmsg_len) |
| 1517 | { |
| 1518 | const struct got_error *err = NULL((void *)0); |
| 1519 | size_t offset, remain; |
| 1520 | |
| 1521 | offset = 0; |
| 1522 | remain = tagmsg_len; |
| 1523 | while (remain > 0) { |
| 1524 | size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain)((16384 - sizeof(struct imsg_hdr)) < (remain) ? (16384 - sizeof (struct imsg_hdr)) : (remain)); |
| 1525 | |
| 1526 | if (imsg_compose(ibuf, GOT_IMSG_TAG_TAGMSG, 0, 0, -1, |
| 1527 | tag->tagmsg + offset, n) == -1) { |
| 1528 | err = got_error_from_errno("imsg_compose TAG_TAGMSG"); |
| 1529 | break; |
| 1530 | } |
| 1531 | |
| 1532 | err = flush_imsg(ibuf); |
| 1533 | if (err) |
| 1534 | break; |
| 1535 | |
| 1536 | offset += n; |
| 1537 | remain -= n; |
| 1538 | } |
| 1539 | |
| 1540 | return err; |
| 1541 | } |
| 1542 | |
| 1543 | const struct got_error * |
| 1544 | got_privsep_send_tag(struct imsgbuf *ibuf, struct got_tag_object *tag) |
| 1545 | { |
| 1546 | const struct got_error *err = NULL((void *)0); |
| 1547 | struct got_imsg_tag_object *itag; |
| 1548 | uint8_t *buf; |
| 1549 | size_t len, total; |
| 1550 | size_t tag_len = strlen(tag->tag); |
| 1551 | size_t tagger_len = strlen(tag->tagger); |
| 1552 | size_t tagmsg_len = strlen(tag->tagmsg); |
| 1553 | |
| 1554 | total = sizeof(*itag) + tag_len + tagger_len + tagmsg_len; |
| 1555 | |
| 1556 | buf = malloc(total); |
| 1557 | if (buf == NULL((void *)0)) |
| 1558 | return got_error_from_errno("malloc"); |
| 1559 | |
| 1560 | itag = (struct got_imsg_tag_object *)buf; |
| 1561 | memcpy(itag->id, tag->id.sha1, sizeof(itag->id)); |
| 1562 | itag->obj_type = tag->obj_type; |
| 1563 | itag->tag_len = tag_len; |
| 1564 | itag->tagger_len = tagger_len; |
| 1565 | itag->tagger_time = tag->tagger_time; |
| 1566 | itag->tagger_gmtoff = tag->tagger_gmtoff; |
| 1567 | itag->tagmsg_len = tagmsg_len; |
| 1568 | |
| 1569 | len = sizeof(*itag); |
| 1570 | memcpy(buf + len, tag->tag, tag_len); |
| 1571 | len += tag_len; |
| 1572 | memcpy(buf + len, tag->tagger, tagger_len); |
| 1573 | len += tagger_len; |
| 1574 | |
| 1575 | if (imsg_compose(ibuf, GOT_IMSG_TAG, 0, 0, -1, buf, len) == -1) { |
| 1576 | err = got_error_from_errno("imsg_compose TAG"); |
| 1577 | goto done; |
| 1578 | } |
| 1579 | |
| 1580 | if (tagmsg_len == 0 || |
| 1581 | tagmsg_len + len > MAX_IMSGSIZE16384 - IMSG_HEADER_SIZEsizeof(struct imsg_hdr)) { |
| 1582 | err = flush_imsg(ibuf); |
| 1583 | if (err) |
| 1584 | goto done; |
| 1585 | } |
| 1586 | err = send_tagmsg(ibuf, tag, tagmsg_len); |
| 1587 | done: |
| 1588 | free(buf); |
| 1589 | return err; |
| 1590 | } |
| 1591 | |
| 1592 | const struct got_error * |
| 1593 | got_privsep_recv_tag(struct got_tag_object **tag, struct imsgbuf *ibuf) |
| 1594 | { |
| 1595 | const struct got_error *err = NULL((void *)0); |
| 1596 | struct imsg imsg; |
| 1597 | struct got_imsg_tag_object *itag; |
| 1598 | size_t len, datalen; |
| 1599 | const size_t min_datalen = |
| 1600 | MIN(sizeof(struct got_imsg_error),((sizeof(struct got_imsg_error)) < (sizeof(struct got_imsg_tag_object )) ? (sizeof(struct got_imsg_error)) : (sizeof(struct got_imsg_tag_object ))) |
| 1601 | sizeof(struct got_imsg_tag_object))((sizeof(struct got_imsg_error)) < (sizeof(struct got_imsg_tag_object )) ? (sizeof(struct got_imsg_error)) : (sizeof(struct got_imsg_tag_object ))); |
| 1602 | |
| 1603 | *tag = NULL((void *)0); |
| 1604 | |
| 1605 | err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen); |
| 1606 | if (err) |
| 1607 | return err; |
| 1608 | |
| 1609 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 1610 | len = 0; |
| 1611 | |
| 1612 | switch (imsg.hdr.type) { |
| 1613 | case GOT_IMSG_TAG: |
| 1614 | if (datalen < sizeof(*itag)) { |
| 1615 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1616 | break; |
| 1617 | } |
| 1618 | itag = imsg.data; |
| 1619 | if (datalen != sizeof(*itag) + itag->tag_len + |
| 1620 | itag->tagger_len) { |
| 1621 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1622 | break; |
| 1623 | } |
| 1624 | len += sizeof(*itag); |
| 1625 | |
| 1626 | *tag = calloc(1, sizeof(**tag)); |
| 1627 | if (*tag == NULL((void *)0)) { |
| 1628 | err = got_error_from_errno("calloc"); |
| 1629 | break; |
| 1630 | } |
| 1631 | |
| 1632 | memcpy((*tag)->id.sha1, itag->id, SHA1_DIGEST_LENGTH20); |
| 1633 | |
| 1634 | if (itag->tag_len == 0) { |
| 1635 | (*tag)->tag = strdup(""); |
| 1636 | if ((*tag)->tag == NULL((void *)0)) { |
| 1637 | err = got_error_from_errno("strdup"); |
| 1638 | break; |
| 1639 | } |
| 1640 | } else { |
| 1641 | (*tag)->tag = malloc(itag->tag_len + 1); |
| 1642 | if ((*tag)->tag == NULL((void *)0)) { |
| 1643 | err = got_error_from_errno("malloc"); |
| 1644 | break; |
| 1645 | } |
| 1646 | memcpy((*tag)->tag, imsg.data + len, |
| 1647 | itag->tag_len); |
| 1648 | (*tag)->tag[itag->tag_len] = '\0'; |
| 1649 | } |
| 1650 | len += itag->tag_len; |
| 1651 | |
| 1652 | (*tag)->obj_type = itag->obj_type; |
| 1653 | (*tag)->tagger_time = itag->tagger_time; |
| 1654 | (*tag)->tagger_gmtoff = itag->tagger_gmtoff; |
| 1655 | |
| 1656 | if (itag->tagger_len == 0) { |
| 1657 | (*tag)->tagger = strdup(""); |
| 1658 | if ((*tag)->tagger == NULL((void *)0)) { |
| 1659 | err = got_error_from_errno("strdup"); |
| 1660 | break; |
| 1661 | } |
| 1662 | } else { |
| 1663 | (*tag)->tagger = malloc(itag->tagger_len + 1); |
| 1664 | if ((*tag)->tagger == NULL((void *)0)) { |
| 1665 | err = got_error_from_errno("malloc"); |
| 1666 | break; |
| 1667 | } |
| 1668 | memcpy((*tag)->tagger, imsg.data + len, |
| 1669 | itag->tagger_len); |
| 1670 | (*tag)->tagger[itag->tagger_len] = '\0'; |
| 1671 | } |
| 1672 | len += itag->tagger_len; |
| 1673 | |
| 1674 | if (itag->tagmsg_len == 0) { |
| 1675 | (*tag)->tagmsg = strdup(""); |
| 1676 | if ((*tag)->tagmsg == NULL((void *)0)) { |
| 1677 | err = got_error_from_errno("strdup"); |
| 1678 | break; |
| 1679 | } |
| 1680 | } else { |
| 1681 | size_t offset = 0, remain = itag->tagmsg_len; |
| 1682 | |
| 1683 | (*tag)->tagmsg = malloc(itag->tagmsg_len + 1); |
| 1684 | if ((*tag)->tagmsg == NULL((void *)0)) { |
| 1685 | err = got_error_from_errno("malloc"); |
| 1686 | break; |
| 1687 | } |
| 1688 | while (remain > 0) { |
| 1689 | struct imsg imsg_log; |
| 1690 | size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,((16384 - sizeof(struct imsg_hdr)) < (remain) ? (16384 - sizeof (struct imsg_hdr)) : (remain)) |
| 1691 | remain)((16384 - sizeof(struct imsg_hdr)) < (remain) ? (16384 - sizeof (struct imsg_hdr)) : (remain)); |
| 1692 | |
| 1693 | err = got_privsep_recv_imsg(&imsg_log, ibuf, n); |
| 1694 | if (err) |
| 1695 | return err; |
| 1696 | |
| 1697 | if (imsg_log.hdr.type != GOT_IMSG_TAG_TAGMSG) |
| 1698 | return got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1699 | |
| 1700 | memcpy((*tag)->tagmsg + offset, imsg_log.data, |
| 1701 | n); |
| 1702 | imsg_free(&imsg_log); |
| 1703 | offset += n; |
| 1704 | remain -= n; |
| 1705 | } |
| 1706 | (*tag)->tagmsg[itag->tagmsg_len] = '\0'; |
| 1707 | } |
| 1708 | |
| 1709 | break; |
| 1710 | default: |
| 1711 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1712 | break; |
| 1713 | } |
| 1714 | |
| 1715 | imsg_free(&imsg); |
| 1716 | |
| 1717 | return err; |
| 1718 | } |
| 1719 | |
| 1720 | const struct got_error * |
| 1721 | got_privsep_init_pack_child(struct imsgbuf *ibuf, struct got_pack *pack, |
| 1722 | struct got_packidx *packidx) |
| 1723 | { |
| 1724 | const struct got_error *err = NULL((void *)0); |
| 1725 | struct got_imsg_packidx ipackidx; |
| 1726 | struct got_imsg_pack ipack; |
| 1727 | int fd; |
| 1728 | |
| 1729 | ipackidx.len = packidx->len; |
| 1730 | fd = dup(packidx->fd); |
| 1731 | if (fd == -1) |
| 1732 | return got_error_from_errno("dup"); |
| 1733 | |
| 1734 | if (imsg_compose(ibuf, GOT_IMSG_PACKIDX, 0, 0, fd, &ipackidx, |
| 1735 | sizeof(ipackidx)) == -1) { |
| 1736 | err = got_error_from_errno("imsg_compose PACKIDX"); |
| 1737 | close(fd); |
| 1738 | return err; |
| 1739 | } |
| 1740 | |
| 1741 | if (strlcpy(ipack.path_packfile, pack->path_packfile, |
| 1742 | sizeof(ipack.path_packfile)) >= sizeof(ipack.path_packfile)) |
| 1743 | return got_error(GOT_ERR_NO_SPACE9); |
| 1744 | ipack.filesize = pack->filesize; |
| 1745 | |
| 1746 | fd = dup(pack->fd); |
| 1747 | if (fd == -1) |
| 1748 | return got_error_from_errno("dup"); |
| 1749 | |
| 1750 | if (imsg_compose(ibuf, GOT_IMSG_PACK, 0, 0, fd, &ipack, sizeof(ipack)) |
| 1751 | == -1) { |
| 1752 | err = got_error_from_errno("imsg_compose PACK"); |
| 1753 | close(fd); |
| 1754 | return err; |
| 1755 | } |
| 1756 | |
| 1757 | return flush_imsg(ibuf); |
| 1758 | } |
| 1759 | |
| 1760 | const struct got_error * |
| 1761 | got_privsep_send_packed_obj_req(struct imsgbuf *ibuf, int idx, |
| 1762 | struct got_object_id *id) |
| 1763 | { |
| 1764 | struct got_imsg_packed_object iobj; |
| 1765 | |
| 1766 | iobj.idx = idx; |
| 1767 | memcpy(iobj.id, id->sha1, sizeof(iobj.id)); |
| 1768 | |
| 1769 | if (imsg_compose(ibuf, GOT_IMSG_PACKED_OBJECT_REQUEST, 0, 0, -1, |
| 1770 | &iobj, sizeof(iobj)) == -1) |
| 1771 | return got_error_from_errno("imsg_compose " |
| 1772 | "PACKED_OBJECT_REQUEST"); |
| 1773 | |
| 1774 | return flush_imsg(ibuf); |
| 1775 | } |
| 1776 | |
| 1777 | const struct got_error * |
| 1778 | got_privsep_send_packed_raw_obj_req(struct imsgbuf *ibuf, int idx, |
| 1779 | struct got_object_id *id) |
| 1780 | { |
| 1781 | struct got_imsg_packed_object iobj; |
| 1782 | |
| 1783 | iobj.idx = idx; |
| 1784 | memcpy(iobj.id, id->sha1, sizeof(iobj.id)); |
| 1785 | |
| 1786 | if (imsg_compose(ibuf, GOT_IMSG_PACKED_RAW_OBJECT_REQUEST, 0, 0, -1, |
| 1787 | &iobj, sizeof(iobj)) == -1) |
| 1788 | return got_error_from_errno("imsg_compose " |
| 1789 | "PACKED_OBJECT_REQUEST"); |
| 1790 | |
| 1791 | return flush_imsg(ibuf); |
| 1792 | } |
| 1793 | |
| 1794 | const struct got_error * |
| 1795 | got_privsep_send_gitconfig_parse_req(struct imsgbuf *ibuf, int fd) |
| 1796 | { |
| 1797 | const struct got_error *err = NULL((void *)0); |
| 1798 | |
| 1799 | if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_PARSE_REQUEST, 0, 0, fd, |
| 1800 | NULL((void *)0), 0) == -1) { |
| 1801 | err = got_error_from_errno("imsg_compose " |
| 1802 | "GITCONFIG_PARSE_REQUEST"); |
| 1803 | close(fd); |
| 1804 | return err; |
| 1805 | } |
| 1806 | |
| 1807 | return flush_imsg(ibuf); |
| 1808 | } |
| 1809 | |
| 1810 | const struct got_error * |
| 1811 | got_privsep_send_gitconfig_repository_format_version_req(struct imsgbuf *ibuf) |
| 1812 | { |
| 1813 | if (imsg_compose(ibuf, |
| 1814 | GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST, 0, 0, -1, |
| 1815 | NULL((void *)0), 0) == -1) |
| 1816 | return got_error_from_errno("imsg_compose " |
| 1817 | "GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST"); |
| 1818 | |
| 1819 | return flush_imsg(ibuf); |
| 1820 | } |
| 1821 | |
| 1822 | const struct got_error * |
| 1823 | got_privsep_send_gitconfig_repository_extensions_req(struct imsgbuf *ibuf) |
| 1824 | { |
| 1825 | if (imsg_compose(ibuf, |
| 1826 | GOT_IMSG_GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST, 0, 0, -1, |
| 1827 | NULL((void *)0), 0) == -1) |
| 1828 | return got_error_from_errno("imsg_compose " |
| 1829 | "GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST"); |
| 1830 | |
| 1831 | return flush_imsg(ibuf); |
| 1832 | } |
| 1833 | |
| 1834 | |
| 1835 | const struct got_error * |
| 1836 | got_privsep_send_gitconfig_author_name_req(struct imsgbuf *ibuf) |
| 1837 | { |
| 1838 | if (imsg_compose(ibuf, |
| 1839 | GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST, 0, 0, -1, NULL((void *)0), 0) == -1) |
| 1840 | return got_error_from_errno("imsg_compose " |
| 1841 | "GITCONFIG_AUTHOR_NAME_REQUEST"); |
| 1842 | |
| 1843 | return flush_imsg(ibuf); |
| 1844 | } |
| 1845 | |
| 1846 | const struct got_error * |
| 1847 | got_privsep_send_gitconfig_author_email_req(struct imsgbuf *ibuf) |
| 1848 | { |
| 1849 | if (imsg_compose(ibuf, |
| 1850 | GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST, 0, 0, -1, NULL((void *)0), 0) == -1) |
| 1851 | return got_error_from_errno("imsg_compose " |
| 1852 | "GITCONFIG_AUTHOR_EMAIL_REQUEST"); |
| 1853 | |
| 1854 | return flush_imsg(ibuf); |
| 1855 | } |
| 1856 | |
| 1857 | const struct got_error * |
| 1858 | got_privsep_send_gitconfig_remotes_req(struct imsgbuf *ibuf) |
| 1859 | { |
| 1860 | if (imsg_compose(ibuf, |
| 1861 | GOT_IMSG_GITCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL((void *)0), 0) == -1) |
| 1862 | return got_error_from_errno("imsg_compose " |
| 1863 | "GITCONFIG_REMOTE_REQUEST"); |
| 1864 | |
| 1865 | return flush_imsg(ibuf); |
| 1866 | } |
| 1867 | |
| 1868 | const struct got_error * |
| 1869 | got_privsep_send_gitconfig_owner_req(struct imsgbuf *ibuf) |
| 1870 | { |
| 1871 | if (imsg_compose(ibuf, |
| 1872 | GOT_IMSG_GITCONFIG_OWNER_REQUEST, 0, 0, -1, NULL((void *)0), 0) == -1) |
| 1873 | return got_error_from_errno("imsg_compose " |
| 1874 | "GITCONFIG_OWNER_REQUEST"); |
| 1875 | |
| 1876 | return flush_imsg(ibuf); |
| 1877 | } |
| 1878 | |
| 1879 | const struct got_error * |
| 1880 | got_privsep_recv_gitconfig_str(char **str, struct imsgbuf *ibuf) |
| 1881 | { |
| 1882 | const struct got_error *err = NULL((void *)0); |
| 1883 | struct imsg imsg; |
| 1884 | size_t datalen; |
| 1885 | const size_t min_datalen = 0; |
| 1886 | |
| 1887 | *str = NULL((void *)0); |
| 1888 | |
| 1889 | err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen); |
| 1890 | if (err) |
| 1891 | return err; |
| 1892 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 1893 | |
| 1894 | switch (imsg.hdr.type) { |
| 1895 | case GOT_IMSG_GITCONFIG_STR_VAL: |
| 1896 | if (datalen == 0) |
| 1897 | break; |
| 1898 | /* datalen does not include terminating \0 */ |
| 1899 | *str = malloc(datalen + 1); |
| 1900 | if (*str == NULL((void *)0)) { |
| 1901 | err = got_error_from_errno("malloc"); |
| 1902 | break; |
| 1903 | } |
| 1904 | memcpy(*str, imsg.data, datalen); |
| 1905 | (*str)[datalen] = '\0'; |
| 1906 | break; |
| 1907 | default: |
| 1908 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1909 | break; |
| 1910 | } |
| 1911 | |
| 1912 | imsg_free(&imsg); |
| 1913 | return err; |
| 1914 | } |
| 1915 | |
| 1916 | const struct got_error * |
| 1917 | got_privsep_recv_gitconfig_int(int *val, struct imsgbuf *ibuf) |
| 1918 | { |
| 1919 | const struct got_error *err = NULL((void *)0); |
| 1920 | struct imsg imsg; |
| 1921 | size_t datalen; |
| 1922 | const size_t min_datalen = |
| 1923 | MIN(sizeof(struct got_imsg_error), sizeof(int))((sizeof(struct got_imsg_error)) < (sizeof(int)) ? (sizeof (struct got_imsg_error)) : (sizeof(int))); |
| 1924 | |
| 1925 | *val = 0; |
| 1926 | |
| 1927 | err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen); |
| 1928 | if (err) |
| 1929 | return err; |
| 1930 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 1931 | |
| 1932 | switch (imsg.hdr.type) { |
| 1933 | case GOT_IMSG_GITCONFIG_INT_VAL: |
| 1934 | if (datalen != sizeof(*val)) { |
| 1935 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1936 | break; |
| 1937 | } |
| 1938 | memcpy(val, imsg.data, sizeof(*val)); |
| 1939 | break; |
| 1940 | default: |
| 1941 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1942 | break; |
| 1943 | } |
| 1944 | |
| 1945 | imsg_free(&imsg); |
| 1946 | return err; |
| 1947 | } |
| 1948 | |
| 1949 | static void |
| 1950 | free_remote_data(struct got_remote_repo *remote) |
| 1951 | { |
| 1952 | int i; |
| 1953 | |
| 1954 | free(remote->name); |
| 1955 | free(remote->url); |
| 1956 | for (i = 0; i < remote->nbranches; i++) |
| 1957 | free(remote->branches[i]); |
| 1958 | free(remote->branches); |
| 1959 | for (i = 0; i < remote->nrefs; i++) |
| 1960 | free(remote->refs[i]); |
| 1961 | free(remote->refs); |
| 1962 | } |
| 1963 | |
| 1964 | const struct got_error * |
| 1965 | got_privsep_recv_gitconfig_remotes(struct got_remote_repo **remotes, |
| 1966 | int *nremotes, struct imsgbuf *ibuf) |
| 1967 | { |
| 1968 | const struct got_error *err = NULL((void *)0); |
| 1969 | struct imsg imsg; |
| 1970 | size_t datalen; |
| 1971 | struct got_imsg_remotes iremotes; |
| 1972 | struct got_imsg_remote iremote; |
| 1973 | |
| 1974 | *remotes = NULL((void *)0); |
| 1975 | *nremotes = 0; |
| 1976 | iremotes.nremotes = 0; |
| 1977 | |
| 1978 | err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremotes)); |
| 1979 | if (err) |
| 1980 | return err; |
| 1981 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 1982 | |
| 1983 | switch (imsg.hdr.type) { |
| 1984 | case GOT_IMSG_GITCONFIG_REMOTES: |
| 1985 | if (datalen != sizeof(iremotes)) { |
| 1986 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 1987 | break; |
| 1988 | } |
| 1989 | memcpy(&iremotes, imsg.data, sizeof(iremotes)); |
| 1990 | if (iremotes.nremotes == 0) { |
| 1991 | imsg_free(&imsg); |
| 1992 | return NULL((void *)0); |
| 1993 | } |
| 1994 | break; |
| 1995 | default: |
| 1996 | imsg_free(&imsg); |
| 1997 | return got_error(GOT_ERR_PRIVSEP_MSG39); |
| 1998 | } |
| 1999 | |
| 2000 | imsg_free(&imsg); |
| 2001 | |
| 2002 | *remotes = recallocarray(NULL((void *)0), 0, iremotes.nremotes, sizeof(**remotes)); |
| 2003 | if (*remotes == NULL((void *)0)) |
| 2004 | return got_error_from_errno("recallocarray"); |
| 2005 | |
| 2006 | while (*nremotes < iremotes.nremotes) { |
| 2007 | struct got_remote_repo *remote; |
| 2008 | |
| 2009 | err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremote)); |
| 2010 | if (err) |
| 2011 | break; |
| 2012 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 2013 | |
| 2014 | switch (imsg.hdr.type) { |
| 2015 | case GOT_IMSG_GITCONFIG_REMOTE: |
| 2016 | remote = &(*remotes)[*nremotes]; |
| 2017 | memset(remote, 0, sizeof(*remote)); |
| 2018 | if (datalen < sizeof(iremote)) { |
| 2019 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 2020 | break; |
| 2021 | } |
| 2022 | memcpy(&iremote, imsg.data, sizeof(iremote)); |
| 2023 | if (iremote.name_len == 0 || iremote.url_len == 0 || |
| 2024 | (sizeof(iremote) + iremote.name_len + |
| 2025 | iremote.url_len) > datalen) { |
| 2026 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 2027 | break; |
| 2028 | } |
| 2029 | remote->name = strndup(imsg.data + sizeof(iremote), |
| 2030 | iremote.name_len); |
| 2031 | if (remote->name == NULL((void *)0)) { |
| 2032 | err = got_error_from_errno("strndup"); |
| 2033 | break; |
| 2034 | } |
| 2035 | remote->url = strndup(imsg.data + sizeof(iremote) + |
| 2036 | iremote.name_len, iremote.url_len); |
| 2037 | if (remote->url == NULL((void *)0)) { |
| 2038 | err = got_error_from_errno("strndup"); |
| 2039 | free_remote_data(remote); |
| 2040 | break; |
| 2041 | } |
| 2042 | remote->mirror_references = iremote.mirror_references; |
| 2043 | remote->fetch_all_branches = iremote.fetch_all_branches; |
| 2044 | remote->nbranches = 0; |
| 2045 | remote->branches = NULL((void *)0); |
| 2046 | remote->nrefs = 0; |
| 2047 | remote->refs = NULL((void *)0); |
| 2048 | (*nremotes)++; |
| 2049 | break; |
| 2050 | default: |
| 2051 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 2052 | break; |
| 2053 | } |
| 2054 | |
| 2055 | imsg_free(&imsg); |
| 2056 | if (err) |
| 2057 | break; |
| 2058 | } |
| 2059 | |
| 2060 | if (err) { |
| 2061 | int i; |
| 2062 | for (i = 0; i < *nremotes; i++) |
| 2063 | free_remote_data(&(*remotes)[i]); |
| 2064 | free(*remotes); |
| 2065 | *remotes = NULL((void *)0); |
| 2066 | *nremotes = 0; |
| 2067 | } |
| 2068 | return err; |
| 2069 | } |
| 2070 | |
| 2071 | const struct got_error * |
| 2072 | got_privsep_send_gotconfig_parse_req(struct imsgbuf *ibuf, int fd) |
| 2073 | { |
| 2074 | const struct got_error *err = NULL((void *)0); |
| 2075 | |
| 2076 | if (imsg_compose(ibuf, GOT_IMSG_GOTCONFIG_PARSE_REQUEST, 0, 0, fd, |
| 2077 | NULL((void *)0), 0) == -1) { |
| 2078 | err = got_error_from_errno("imsg_compose " |
| 2079 | "GOTCONFIG_PARSE_REQUEST"); |
| 2080 | close(fd); |
| 2081 | return err; |
| 2082 | } |
| 2083 | |
| 2084 | return flush_imsg(ibuf); |
| 2085 | } |
| 2086 | |
| 2087 | const struct got_error * |
| 2088 | got_privsep_send_gotconfig_author_req(struct imsgbuf *ibuf) |
| 2089 | { |
| 2090 | if (imsg_compose(ibuf, |
| 2091 | GOT_IMSG_GOTCONFIG_AUTHOR_REQUEST, 0, 0, -1, NULL((void *)0), 0) == -1) |
| 2092 | return got_error_from_errno("imsg_compose " |
| 2093 | "GOTCONFIG_AUTHOR_REQUEST"); |
| 2094 | |
| 2095 | return flush_imsg(ibuf); |
| 2096 | } |
| 2097 | |
| 2098 | const struct got_error * |
| 2099 | got_privsep_send_gotconfig_remotes_req(struct imsgbuf *ibuf) |
| 2100 | { |
| 2101 | if (imsg_compose(ibuf, |
| 2102 | GOT_IMSG_GOTCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL((void *)0), 0) == -1) |
| 2103 | return got_error_from_errno("imsg_compose " |
| 2104 | "GOTCONFIG_REMOTE_REQUEST"); |
| 2105 | |
| 2106 | return flush_imsg(ibuf); |
| 2107 | } |
| 2108 | |
| 2109 | const struct got_error * |
| 2110 | got_privsep_recv_gotconfig_str(char **str, struct imsgbuf *ibuf) |
| 2111 | { |
| 2112 | const struct got_error *err = NULL((void *)0); |
| 2113 | struct imsg imsg; |
| 2114 | size_t datalen; |
| 2115 | const size_t min_datalen = 0; |
| 2116 | |
| 2117 | *str = NULL((void *)0); |
| 2118 | |
| 2119 | err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen); |
| 2120 | if (err) |
| 2121 | return err; |
| 2122 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 2123 | |
| 2124 | switch (imsg.hdr.type) { |
| 2125 | case GOT_IMSG_ERROR: |
| 2126 | if (datalen < sizeof(struct got_imsg_error)) { |
| 2127 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 2128 | break; |
| 2129 | } |
| 2130 | err = recv_imsg_error(&imsg, datalen); |
| 2131 | break; |
| 2132 | case GOT_IMSG_GOTCONFIG_STR_VAL: |
| 2133 | if (datalen == 0) |
| 2134 | break; |
| 2135 | /* datalen does not include terminating \0 */ |
| 2136 | *str = malloc(datalen + 1); |
| 2137 | if (*str == NULL((void *)0)) { |
| 2138 | err = got_error_from_errno("malloc"); |
| 2139 | break; |
| 2140 | } |
| 2141 | memcpy(*str, imsg.data, datalen); |
| 2142 | (*str)[datalen] = '\0'; |
| 2143 | break; |
| 2144 | default: |
| 2145 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 2146 | break; |
| 2147 | } |
| 2148 | |
| 2149 | imsg_free(&imsg); |
| 2150 | return err; |
| 2151 | } |
| 2152 | |
| 2153 | |
| 2154 | const struct got_error * |
| 2155 | got_privsep_recv_gotconfig_remotes(struct got_remote_repo **remotes, |
| 2156 | int *nremotes, struct imsgbuf *ibuf) |
| 2157 | { |
| 2158 | const struct got_error *err = NULL((void *)0); |
| 2159 | struct imsg imsg; |
| 2160 | size_t datalen; |
| 2161 | struct got_imsg_remotes iremotes; |
| 2162 | struct got_imsg_remote iremote; |
| 2163 | const size_t min_datalen = |
| 2164 | MIN(sizeof(struct got_imsg_error), sizeof(iremotes))((sizeof(struct got_imsg_error)) < (sizeof(iremotes)) ? (sizeof (struct got_imsg_error)) : (sizeof(iremotes))); |
| 2165 | |
| 2166 | *remotes = NULL((void *)0); |
| 2167 | *nremotes = 0; |
| 2168 | iremotes.nremotes = 0; |
| 2169 | |
| 2170 | err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen); |
| 2171 | if (err) |
| 2172 | return err; |
| 2173 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 2174 | |
| 2175 | switch (imsg.hdr.type) { |
| 2176 | case GOT_IMSG_ERROR: |
| 2177 | if (datalen < sizeof(struct got_imsg_error)) { |
| 2178 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 2179 | break; |
| 2180 | } |
| 2181 | err = recv_imsg_error(&imsg, datalen); |
| 2182 | break; |
| 2183 | case GOT_IMSG_GOTCONFIG_REMOTES: |
| 2184 | if (datalen != sizeof(iremotes)) { |
| 2185 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 2186 | break; |
| 2187 | } |
| 2188 | memcpy(&iremotes, imsg.data, sizeof(iremotes)); |
| 2189 | if (iremotes.nremotes == 0) { |
| 2190 | imsg_free(&imsg); |
| 2191 | return NULL((void *)0); |
| 2192 | } |
| 2193 | break; |
| 2194 | default: |
| 2195 | imsg_free(&imsg); |
| 2196 | return got_error(GOT_ERR_PRIVSEP_MSG39); |
| 2197 | } |
| 2198 | |
| 2199 | imsg_free(&imsg); |
| 2200 | |
| 2201 | *remotes = recallocarray(NULL((void *)0), 0, iremotes.nremotes, sizeof(**remotes)); |
| 2202 | if (*remotes == NULL((void *)0)) |
| 2203 | return got_error_from_errno("recallocarray"); |
| 2204 | |
| 2205 | while (*nremotes < iremotes.nremotes) { |
| 2206 | struct got_remote_repo *remote; |
| 2207 | const size_t min_datalen = |
| 2208 | MIN(sizeof(struct got_imsg_error), sizeof(iremote))((sizeof(struct got_imsg_error)) < (sizeof(iremote)) ? (sizeof (struct got_imsg_error)) : (sizeof(iremote))); |
| 2209 | int i; |
| 2210 | |
| 2211 | err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen); |
| 2212 | if (err) |
| 2213 | break; |
| 2214 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 2215 | |
| 2216 | switch (imsg.hdr.type) { |
| 2217 | case GOT_IMSG_ERROR: |
| 2218 | if (datalen < sizeof(struct got_imsg_error)) { |
| 2219 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 2220 | break; |
| 2221 | } |
| 2222 | err = recv_imsg_error(&imsg, datalen); |
| 2223 | break; |
| 2224 | case GOT_IMSG_GOTCONFIG_REMOTE: |
| 2225 | remote = &(*remotes)[*nremotes]; |
| 2226 | memset(remote, 0, sizeof(*remote)); |
| 2227 | if (datalen < sizeof(iremote)) { |
| 2228 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 2229 | break; |
| 2230 | } |
| 2231 | memcpy(&iremote, imsg.data, sizeof(iremote)); |
| 2232 | if (iremote.name_len == 0 || iremote.url_len == 0 || |
| 2233 | (sizeof(iremote) + iremote.name_len + |
| 2234 | iremote.url_len) > datalen) { |
| 2235 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 2236 | break; |
| 2237 | } |
| 2238 | remote->name = strndup(imsg.data + sizeof(iremote), |
| 2239 | iremote.name_len); |
| 2240 | if (remote->name == NULL((void *)0)) { |
| 2241 | err = got_error_from_errno("strndup"); |
| 2242 | break; |
| 2243 | } |
| 2244 | remote->url = strndup(imsg.data + sizeof(iremote) + |
| 2245 | iremote.name_len, iremote.url_len); |
| 2246 | if (remote->url == NULL((void *)0)) { |
| 2247 | err = got_error_from_errno("strndup"); |
| 2248 | free_remote_data(remote); |
| 2249 | break; |
| 2250 | } |
| 2251 | remote->mirror_references = iremote.mirror_references; |
| 2252 | remote->fetch_all_branches = iremote.fetch_all_branches; |
| 2253 | if (iremote.nbranches > 0) { |
| 2254 | remote->branches = recallocarray(NULL((void *)0), 0, |
| 2255 | iremote.nbranches, sizeof(char *)); |
| 2256 | if (remote->branches == NULL((void *)0)) { |
| 2257 | err = got_error_from_errno("calloc"); |
| 2258 | free_remote_data(remote); |
| 2259 | break; |
| 2260 | } |
| 2261 | } |
| 2262 | remote->nbranches = 0; |
| 2263 | for (i = 0; i < iremote.nbranches; i++) { |
| 2264 | char *branch; |
| 2265 | err = got_privsep_recv_gotconfig_str(&branch, |
| 2266 | ibuf); |
| 2267 | if (err) { |
| 2268 | free_remote_data(remote); |
| 2269 | goto done; |
| 2270 | } |
| 2271 | remote->branches[i] = branch; |
| 2272 | remote->nbranches++; |
| 2273 | } |
| 2274 | if (iremote.nrefs > 0) { |
| 2275 | remote->refs = recallocarray(NULL((void *)0), 0, |
| 2276 | iremote.nrefs, sizeof(char *)); |
| 2277 | if (remote->refs == NULL((void *)0)) { |
| 2278 | err = got_error_from_errno("calloc"); |
| 2279 | free_remote_data(remote); |
| 2280 | break; |
| 2281 | } |
| 2282 | } |
| 2283 | remote->nrefs = 0; |
| 2284 | for (i = 0; i < iremote.nrefs; i++) { |
| 2285 | char *ref; |
| 2286 | err = got_privsep_recv_gotconfig_str(&ref, |
| 2287 | ibuf); |
| 2288 | if (err) { |
| 2289 | free_remote_data(remote); |
| 2290 | goto done; |
| 2291 | } |
| 2292 | remote->refs[i] = ref; |
| 2293 | remote->nrefs++; |
| 2294 | } |
| 2295 | (*nremotes)++; |
| 2296 | break; |
| 2297 | default: |
| 2298 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 2299 | break; |
| 2300 | } |
| 2301 | |
| 2302 | imsg_free(&imsg); |
| 2303 | if (err) |
| 2304 | break; |
| 2305 | } |
| 2306 | done: |
| 2307 | if (err) { |
| 2308 | int i; |
| 2309 | for (i = 0; i < *nremotes; i++) |
| 2310 | free_remote_data(&(*remotes)[i]); |
| 2311 | free(*remotes); |
| 2312 | *remotes = NULL((void *)0); |
| 2313 | *nremotes = 0; |
| 2314 | } |
| 2315 | return err; |
| 2316 | } |
| 2317 | |
| 2318 | const struct got_error * |
| 2319 | got_privsep_send_commit_traversal_request(struct imsgbuf *ibuf, |
| 2320 | struct got_object_id *id, int idx, const char *path) |
| 2321 | { |
| 2322 | const struct got_error *err = NULL((void *)0); |
| 2323 | struct ibuf *wbuf; |
| 2324 | size_t path_len = strlen(path) + 1; |
| 2325 | |
| 2326 | wbuf = imsg_create(ibuf, GOT_IMSG_COMMIT_TRAVERSAL_REQUEST, 0, 0, |
| 2327 | sizeof(struct got_imsg_commit_traversal_request) + path_len); |
| 2328 | if (wbuf == NULL((void *)0)) |
| 2329 | return got_error_from_errno( |
| 2330 | "imsg_create COMMIT_TRAVERSAL_REQUEST"); |
| 2331 | if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH20) == -1) { |
| 2332 | err = got_error_from_errno("imsg_add COMMIT_TRAVERSAL_REQUEST"); |
| 2333 | ibuf_free(wbuf); |
| 2334 | return err; |
| 2335 | } |
| 2336 | if (imsg_add(wbuf, &idx, sizeof(idx)) == -1) { |
| 2337 | err = got_error_from_errno("imsg_add COMMIT_TRAVERSAL_REQUEST"); |
| 2338 | ibuf_free(wbuf); |
| 2339 | return err; |
| 2340 | } |
| 2341 | if (imsg_add(wbuf, path, path_len) == -1) { |
| 2342 | err = got_error_from_errno("imsg_add COMMIT_TRAVERSAL_REQUEST"); |
| 2343 | ibuf_free(wbuf); |
| 2344 | return err; |
| 2345 | } |
| 2346 | |
| 2347 | wbuf->fd = -1; |
| 2348 | imsg_close(ibuf, wbuf); |
| 2349 | |
| 2350 | return flush_imsg(ibuf); |
| 2351 | } |
| 2352 | |
| 2353 | const struct got_error * |
| 2354 | got_privsep_recv_traversed_commits(struct got_commit_object **changed_commit, |
| 2355 | struct got_object_id **changed_commit_id, |
| 2356 | struct got_object_id_queue *commit_ids, struct imsgbuf *ibuf) |
| 2357 | { |
| 2358 | const struct got_error *err = NULL((void *)0); |
| 2359 | struct imsg imsg; |
| 2360 | struct got_imsg_traversed_commits *icommits; |
| 2361 | size_t datalen; |
| 2362 | int i, done = 0; |
| 2363 | |
| 2364 | *changed_commit = NULL((void *)0); |
| 2365 | *changed_commit_id = NULL((void *)0); |
| 2366 | |
| 2367 | while (!done) { |
| 2368 | err = got_privsep_recv_imsg(&imsg, ibuf, 0); |
| 2369 | if (err) |
| 2370 | return err; |
| 2371 | |
| 2372 | datalen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
| 2373 | switch (imsg.hdr.type) { |
| 2374 | case GOT_IMSG_TRAVERSED_COMMITS: |
| 2375 | icommits = imsg.data; |
| 2376 | if (datalen != sizeof(*icommits) + |
| 2377 | icommits->ncommits * SHA1_DIGEST_LENGTH20) { |
| 2378 | err = got_error(GOT_ERR_PRIVSEP_LEN36); |
| 2379 | break; |
| 2380 | } |
| 2381 | for (i = 0; i < icommits->ncommits; i++) { |
| 2382 | struct got_object_qid *qid; |
| 2383 | uint8_t *sha1 = (uint8_t *)imsg.data + |
| 2384 | sizeof(*icommits) + i * SHA1_DIGEST_LENGTH20; |
| 2385 | err = got_object_qid_alloc_partial(&qid); |
| 2386 | if (err) |
| 2387 | break; |
| 2388 | memcpy(qid->id->sha1, sha1, SHA1_DIGEST_LENGTH20); |
| 2389 | SIMPLEQ_INSERT_TAIL(commit_ids, qid, entry)do { (qid)->entry.sqe_next = ((void *)0); *(commit_ids)-> sqh_last = (qid); (commit_ids)->sqh_last = &(qid)-> entry.sqe_next; } while (0); |
| 2390 | |
| 2391 | /* The last commit may contain a change. */ |
| 2392 | if (i == icommits->ncommits - 1) { |
| 2393 | *changed_commit_id = |
| 2394 | got_object_id_dup(qid->id); |
| 2395 | if (*changed_commit_id == NULL((void *)0)) { |
| 2396 | err = got_error_from_errno( |
| 2397 | "got_object_id_dup"); |
| 2398 | break; |
| 2399 | } |
| 2400 | } |
| 2401 | } |
| 2402 | break; |
| 2403 | case GOT_IMSG_COMMIT: |
| 2404 | if (*changed_commit_id == NULL((void *)0)) { |
| 2405 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 2406 | break; |
| 2407 | } |
| 2408 | err = get_commit_from_imsg(changed_commit, &imsg, |
| 2409 | datalen, ibuf); |
| 2410 | break; |
| 2411 | case GOT_IMSG_COMMIT_TRAVERSAL_DONE: |
| 2412 | done = 1; |
| 2413 | break; |
| 2414 | default: |
| 2415 | err = got_error(GOT_ERR_PRIVSEP_MSG39); |
| 2416 | break; |
| 2417 | } |
| 2418 | |
| 2419 | imsg_free(&imsg); |
| 2420 | if (err) |
| 2421 | break; |
| 2422 | } |
| 2423 | |
| 2424 | if (err) |
| 2425 | got_object_id_queue_free(commit_ids); |
| 2426 | return err; |
| 2427 | } |
| 2428 | |
| 2429 | const struct got_error * |
| 2430 | got_privsep_unveil_exec_helpers(void) |
| 2431 | { |
| 2432 | const char *helpers[] = { |
| 2433 | GOT_PATH_PROG_READ_PACK"/home/ben/bin" "/" "got-read-pack", |
| 2434 | GOT_PATH_PROG_READ_OBJECT"/home/ben/bin" "/" "got-read-object", |
| 2435 | GOT_PATH_PROG_READ_COMMIT"/home/ben/bin" "/" "got-read-commit", |
| 2436 | GOT_PATH_PROG_READ_TREE"/home/ben/bin" "/" "got-read-tree", |
| 2437 | GOT_PATH_PROG_READ_BLOB"/home/ben/bin" "/" "got-read-blob", |
| 2438 | GOT_PATH_PROG_READ_TAG"/home/ben/bin" "/" "got-read-tag", |
| 2439 | GOT_PATH_PROG_READ_GITCONFIG"/home/ben/bin" "/" "got-read-gitconfig", |
| 2440 | GOT_PATH_PROG_READ_GOTCONFIG"/home/ben/bin" "/" "got-read-gotconfig", |
| 2441 | GOT_PATH_PROG_FETCH_PACK"/home/ben/bin" "/" "got-fetch-pack", |
| 2442 | GOT_PATH_PROG_INDEX_PACK"/home/ben/bin" "/" "got-index-pack", |
| 2443 | }; |
| 2444 | size_t i; |
| 2445 | |
| 2446 | for (i = 0; i < nitems(helpers)(sizeof((helpers)) / sizeof((helpers)[0])); i++) { |
| 2447 | if (unveil(helpers[i], "x") == 0) |
| 2448 | continue; |
| 2449 | return got_error_from_errno2("unveil", helpers[i]); |
| 2450 | } |
| 2451 | |
| 2452 | return NULL((void *)0); |
| 2453 | } |
| 2454 | |
| 2455 | void |
| 2456 | got_privsep_exec_child(int imsg_fds[2], const char *path, const char *repo_path) |
| 2457 | { |
| 2458 | if (close(imsg_fds[0]) == -1) { |
| 2459 | fprintf(stderr(&__sF[2]), "%s: %s\n", getprogname(), strerror(errno(*__errno()))); |
| 2460 | _exit(1); |
| 2461 | } |
| 2462 | |
| 2463 | if (dup2(imsg_fds[1], GOT_IMSG_FD_CHILD(2 + 1)) == -1) { |
| 2464 | fprintf(stderr(&__sF[2]), "%s: %s\n", getprogname(), strerror(errno(*__errno()))); |
| 2465 | _exit(1); |
| 2466 | } |
| 2467 | if (closefrom(GOT_IMSG_FD_CHILD(2 + 1) + 1) == -1) { |
| 2468 | fprintf(stderr(&__sF[2]), "%s: %s\n", getprogname(), strerror(errno(*__errno()))); |
| 2469 | _exit(1); |
| 2470 | } |
| 2471 | |
| 2472 | if (execl(path, path, repo_path, (char *)NULL((void *)0)) == -1) { |
| 2473 | fprintf(stderr(&__sF[2]), "%s: %s: %s\n", getprogname(), path, |
| 2474 | strerror(errno(*__errno()))); |
| 2475 | _exit(1); |
| 2476 | } |
| 2477 | } |