1228753Smm/*- 2228753Smm * Copyright (c) 2003-2007 Tim Kientzle 3228753Smm * All rights reserved. 4228753Smm * 5228753Smm * Redistribution and use in source and binary forms, with or without 6228753Smm * modification, are permitted provided that the following conditions 7228753Smm * are met: 8228753Smm * 1. Redistributions of source code must retain the above copyright 9228753Smm * notice, this list of conditions and the following disclaimer 10228753Smm * in this position and unchanged. 11228753Smm * 2. Redistributions in binary form must reproduce the above copyright 12228753Smm * notice, this list of conditions and the following disclaimer in the 13228753Smm * documentation and/or other materials provided with the distribution. 14228753Smm * 15228753Smm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 16228753Smm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17228753Smm * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18228753Smm * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 19228753Smm * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20228753Smm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21228753Smm * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22228753Smm * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23228753Smm * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24228753Smm * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25228753Smm */ 26228753Smm 27228753Smm 28228753Smm#include "cpio_platform.h" 29228763Smm__FBSDID("$FreeBSD: stable/10/contrib/libarchive/cpio/cpio.c 358927 2020-03-13 01:06:08Z mm $"); 30228753Smm 31228753Smm#include <sys/types.h> 32228753Smm#include <archive.h> 33228753Smm#include <archive_entry.h> 34228753Smm 35228753Smm#ifdef HAVE_SYS_MKDEV_H 36228753Smm#include <sys/mkdev.h> 37228753Smm#endif 38228753Smm#ifdef HAVE_SYS_STAT_H 39228753Smm#include <sys/stat.h> 40228753Smm#endif 41228753Smm#ifdef HAVE_SYS_TIME_H 42228753Smm#include <sys/time.h> 43228753Smm#endif 44228753Smm#ifdef HAVE_ERRNO_H 45228753Smm#include <errno.h> 46228753Smm#endif 47228753Smm#ifdef HAVE_FCNTL_H 48228753Smm#include <fcntl.h> 49228753Smm#endif 50228753Smm#ifdef HAVE_GRP_H 51228753Smm#include <grp.h> 52228753Smm#endif 53232153Smm#ifdef HAVE_LOCALE_H 54232153Smm#include <locale.h> 55232153Smm#endif 56228753Smm#ifdef HAVE_PWD_H 57228753Smm#include <pwd.h> 58228753Smm#endif 59232153Smm#ifdef HAVE_SIGNAL_H 60232153Smm#include <signal.h> 61232153Smm#endif 62228753Smm#ifdef HAVE_STDARG_H 63228753Smm#include <stdarg.h> 64228753Smm#endif 65228753Smm#ifdef HAVE_STDINT_H 66228753Smm#include <stdint.h> 67228753Smm#endif 68228753Smm#include <stdio.h> 69228753Smm#ifdef HAVE_STDLIB_H 70228753Smm#include <stdlib.h> 71228753Smm#endif 72228753Smm#ifdef HAVE_STRING_H 73228753Smm#include <string.h> 74228753Smm#endif 75228753Smm#ifdef HAVE_UNISTD_H 76228753Smm#include <unistd.h> 77228753Smm#endif 78228753Smm#ifdef HAVE_TIME_H 79228753Smm#include <time.h> 80228753Smm#endif 81228753Smm 82228753Smm#include "cpio.h" 83228753Smm#include "err.h" 84228753Smm#include "line_reader.h" 85302001Smm#include "passphrase.h" 86228753Smm 87228753Smm/* Fixed size of uname/gname caches. */ 88228753Smm#define name_cache_size 101 89228753Smm 90228753Smm#ifndef O_BINARY 91228753Smm#define O_BINARY 0 92228753Smm#endif 93228753Smm 94228753Smmstruct name_cache { 95228753Smm int probes; 96228753Smm int hits; 97228753Smm size_t size; 98228753Smm struct { 99228753Smm id_t id; 100228753Smm char *name; 101228753Smm } cache[name_cache_size]; 102228753Smm}; 103228753Smm 104228753Smmstatic int extract_data(struct archive *, struct archive *); 105228753Smmconst char * cpio_i64toa(int64_t); 106228753Smmstatic const char *cpio_rename(const char *name); 107228753Smmstatic int entry_to_archive(struct cpio *, struct archive_entry *); 108228753Smmstatic int file_to_archive(struct cpio *, const char *); 109228753Smmstatic void free_cache(struct name_cache *cache); 110228753Smmstatic void list_item_verbose(struct cpio *, struct archive_entry *); 111315433Smmstatic void long_help(void) __LA_DEAD; 112228753Smmstatic const char *lookup_gname(struct cpio *, gid_t gid); 113228753Smmstatic int lookup_gname_helper(struct cpio *, 114228753Smm const char **name, id_t gid); 115228753Smmstatic const char *lookup_uname(struct cpio *, uid_t uid); 116228753Smmstatic int lookup_uname_helper(struct cpio *, 117228753Smm const char **name, id_t uid); 118315433Smmstatic void mode_in(struct cpio *) __LA_DEAD; 119315433Smmstatic void mode_list(struct cpio *) __LA_DEAD; 120228753Smmstatic void mode_out(struct cpio *); 121228753Smmstatic void mode_pass(struct cpio *, const char *); 122232153Smmstatic const char *remove_leading_slash(const char *); 123228753Smmstatic int restore_time(struct cpio *, struct archive_entry *, 124228753Smm const char *, int fd); 125315433Smmstatic void usage(void) __LA_DEAD; 126315433Smmstatic void version(void) __LA_DEAD; 127302001Smmstatic const char * passphrase_callback(struct archive *, void *); 128302001Smmstatic void passphrase_free(char *); 129228753Smm 130228753Smmint 131228753Smmmain(int argc, char *argv[]) 132228753Smm{ 133228753Smm static char buff[16384]; 134228753Smm struct cpio _cpio; /* Allocated on stack. */ 135228753Smm struct cpio *cpio; 136228753Smm const char *errmsg; 137342361Smm char *tptr; 138228753Smm int uid, gid; 139342361Smm int opt, t; 140228753Smm 141228753Smm cpio = &_cpio; 142228753Smm memset(cpio, 0, sizeof(*cpio)); 143228753Smm cpio->buff = buff; 144228753Smm cpio->buff_size = sizeof(buff); 145228753Smm 146232153Smm#if defined(HAVE_SIGACTION) && defined(SIGPIPE) 147232153Smm { /* Ignore SIGPIPE signals. */ 148232153Smm struct sigaction sa; 149232153Smm sigemptyset(&sa.sa_mask); 150232153Smm sa.sa_flags = 0; 151232153Smm sa.sa_handler = SIG_IGN; 152232153Smm sigaction(SIGPIPE, &sa, NULL); 153232153Smm } 154232153Smm#endif 155232153Smm 156302001Smm /* Set lafe_progname before calling lafe_warnc. */ 157302001Smm lafe_setprogname(*argv, "bsdcpio"); 158302001Smm 159232153Smm#if HAVE_SETLOCALE 160232153Smm if (setlocale(LC_ALL, "") == NULL) 161232153Smm lafe_warnc(0, "Failed to set default locale"); 162232153Smm#endif 163228753Smm 164228753Smm cpio->uid_override = -1; 165228753Smm cpio->gid_override = -1; 166228753Smm cpio->argv = argv; 167228753Smm cpio->argc = argc; 168228753Smm cpio->mode = '\0'; 169228753Smm cpio->verbose = 0; 170228753Smm cpio->compress = '\0'; 171228753Smm cpio->extract_flags = ARCHIVE_EXTRACT_NO_AUTODIR; 172228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER; 173228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_SECURE_SYMLINKS; 174228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_SECURE_NODOTDOT; 175300361Smm cpio->extract_flags |= ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS; 176228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_PERM; 177228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_FFLAGS; 178228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_ACL; 179228753Smm#if !defined(_WIN32) && !defined(__CYGWIN__) 180228753Smm if (geteuid() == 0) 181228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_OWNER; 182228753Smm#endif 183228753Smm cpio->bytes_per_block = 512; 184228753Smm cpio->filename = NULL; 185228753Smm 186238856Smm cpio->matching = archive_match_new(); 187238856Smm if (cpio->matching == NULL) 188238856Smm lafe_errc(1, 0, "Out of memory"); 189238856Smm 190228753Smm while ((opt = cpio_getopt(cpio)) != -1) { 191228753Smm switch (opt) { 192228753Smm case '0': /* GNU convention: --null, -0 */ 193228753Smm cpio->option_null = 1; 194228753Smm break; 195228753Smm case 'A': /* NetBSD/OpenBSD */ 196228753Smm cpio->option_append = 1; 197228753Smm break; 198228753Smm case 'a': /* POSIX 1997 */ 199228753Smm cpio->option_atime_restore = 1; 200228753Smm break; 201228753Smm case 'B': /* POSIX 1997 */ 202228753Smm cpio->bytes_per_block = 5120; 203228753Smm break; 204248616Smm case OPTION_B64ENCODE: 205248616Smm cpio->add_filter = opt; 206248616Smm break; 207228753Smm case 'C': /* NetBSD/OpenBSD */ 208342361Smm errno = 0; 209342361Smm tptr = NULL; 210342361Smm t = (int)strtol(cpio->argument, &tptr, 10); 211342361Smm if (errno || t <= 0 || *(cpio->argument) == '\0' || 212342361Smm tptr == NULL || *tptr != '\0') { 213342361Smm lafe_errc(1, 0, "Invalid blocksize: %s", 214342361Smm cpio->argument); 215342361Smm } 216342361Smm cpio->bytes_per_block = t; 217228753Smm break; 218228753Smm case 'c': /* POSIX 1997 */ 219228753Smm cpio->format = "odc"; 220228753Smm break; 221228753Smm case 'd': /* POSIX 1997 */ 222228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_NO_AUTODIR; 223228753Smm break; 224228753Smm case 'E': /* NetBSD/OpenBSD */ 225238856Smm if (archive_match_include_pattern_from_file( 226238856Smm cpio->matching, cpio->argument, 227238856Smm cpio->option_null) != ARCHIVE_OK) 228238856Smm lafe_errc(1, 0, "Error : %s", 229238856Smm archive_error_string(cpio->matching)); 230228753Smm break; 231228753Smm case 'F': /* NetBSD/OpenBSD/GNU cpio */ 232232153Smm cpio->filename = cpio->argument; 233228753Smm break; 234228753Smm case 'f': /* POSIX 1997 */ 235238856Smm if (archive_match_exclude_pattern(cpio->matching, 236238856Smm cpio->argument) != ARCHIVE_OK) 237238856Smm lafe_errc(1, 0, "Error : %s", 238238856Smm archive_error_string(cpio->matching)); 239228753Smm break; 240248616Smm case OPTION_GRZIP: 241248616Smm cpio->compress = opt; 242248616Smm break; 243228753Smm case 'H': /* GNU cpio (also --format) */ 244232153Smm cpio->format = cpio->argument; 245228753Smm break; 246228753Smm case 'h': 247228753Smm long_help(); 248228753Smm break; 249228753Smm case 'I': /* NetBSD/OpenBSD */ 250232153Smm cpio->filename = cpio->argument; 251228753Smm break; 252228753Smm case 'i': /* POSIX 1997 */ 253228753Smm if (cpio->mode != '\0') 254228753Smm lafe_errc(1, 0, 255228753Smm "Cannot use both -i and -%c", cpio->mode); 256228753Smm cpio->mode = opt; 257228753Smm break; 258228753Smm case 'J': /* GNU tar, others */ 259228753Smm cpio->compress = opt; 260228753Smm break; 261228753Smm case 'j': /* GNU tar, others */ 262228753Smm cpio->compress = opt; 263228753Smm break; 264228753Smm case OPTION_INSECURE: 265228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_SYMLINKS; 266228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NODOTDOT; 267300361Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS; 268228753Smm break; 269228753Smm case 'L': /* GNU cpio */ 270228753Smm cpio->option_follow_links = 1; 271228753Smm break; 272228753Smm case 'l': /* POSIX 1997 */ 273228753Smm cpio->option_link = 1; 274228753Smm break; 275248616Smm case OPTION_LRZIP: 276302001Smm case OPTION_LZ4: 277228753Smm case OPTION_LZMA: /* GNU tar, others */ 278248616Smm case OPTION_LZOP: /* GNU tar, others */ 279324418Smm case OPTION_ZSTD: 280228753Smm cpio->compress = opt; 281228753Smm break; 282228753Smm case 'm': /* POSIX 1997 */ 283228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_TIME; 284228753Smm break; 285228753Smm case 'n': /* GNU cpio */ 286228753Smm cpio->option_numeric_uid_gid = 1; 287228753Smm break; 288228753Smm case OPTION_NO_PRESERVE_OWNER: /* GNU cpio */ 289228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_OWNER; 290228753Smm break; 291228753Smm case 'O': /* GNU cpio */ 292232153Smm cpio->filename = cpio->argument; 293228753Smm break; 294228753Smm case 'o': /* POSIX 1997 */ 295228753Smm if (cpio->mode != '\0') 296228753Smm lafe_errc(1, 0, 297228753Smm "Cannot use both -o and -%c", cpio->mode); 298228753Smm cpio->mode = opt; 299228753Smm break; 300228753Smm case 'p': /* POSIX 1997 */ 301228753Smm if (cpio->mode != '\0') 302228753Smm lafe_errc(1, 0, 303228753Smm "Cannot use both -p and -%c", cpio->mode); 304228753Smm cpio->mode = opt; 305228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NODOTDOT; 306300361Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS; 307228753Smm break; 308302001Smm case OPTION_PASSPHRASE: 309302001Smm cpio->passphrase = cpio->argument; 310302001Smm break; 311228753Smm case OPTION_PRESERVE_OWNER: 312228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_OWNER; 313228753Smm break; 314228753Smm case OPTION_QUIET: /* GNU cpio */ 315228753Smm cpio->quiet = 1; 316228753Smm break; 317228753Smm case 'R': /* GNU cpio, also --owner */ 318228777Smm /* TODO: owner_parse should return uname/gname 319228777Smm * also; use that to set [ug]name_override. */ 320232153Smm errmsg = owner_parse(cpio->argument, &uid, &gid); 321228753Smm if (errmsg) { 322228753Smm lafe_warnc(-1, "%s", errmsg); 323228753Smm usage(); 324228753Smm } 325228777Smm if (uid != -1) { 326228753Smm cpio->uid_override = uid; 327228777Smm cpio->uname_override = NULL; 328228777Smm } 329228777Smm if (gid != -1) { 330228753Smm cpio->gid_override = gid; 331228777Smm cpio->gname_override = NULL; 332228777Smm } 333228753Smm break; 334228753Smm case 'r': /* POSIX 1997 */ 335228753Smm cpio->option_rename = 1; 336228753Smm break; 337228753Smm case 't': /* POSIX 1997 */ 338228753Smm cpio->option_list = 1; 339228753Smm break; 340228753Smm case 'u': /* POSIX 1997 */ 341228753Smm cpio->extract_flags 342228753Smm &= ~ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER; 343228753Smm break; 344248616Smm case OPTION_UUENCODE: 345248616Smm cpio->add_filter = opt; 346248616Smm break; 347228753Smm case 'v': /* POSIX 1997 */ 348228753Smm cpio->verbose++; 349228753Smm break; 350232153Smm case 'V': /* GNU cpio */ 351232153Smm cpio->dot++; 352232153Smm break; 353228753Smm case OPTION_VERSION: /* GNU convention */ 354228753Smm version(); 355228753Smm break; 356228753Smm#if 0 357228753Smm /* 358228753Smm * cpio_getopt() handles -W specially, so it's not 359228753Smm * available here. 360228753Smm */ 361228753Smm case 'W': /* Obscure, but useful GNU convention. */ 362228753Smm break; 363228753Smm#endif 364228753Smm case 'y': /* tar convention */ 365228753Smm cpio->compress = opt; 366228753Smm break; 367228753Smm case 'Z': /* tar convention */ 368228753Smm cpio->compress = opt; 369228753Smm break; 370228753Smm case 'z': /* tar convention */ 371228753Smm cpio->compress = opt; 372228753Smm break; 373228753Smm default: 374228753Smm usage(); 375228753Smm } 376228753Smm } 377228753Smm 378228753Smm /* 379228753Smm * Sanity-check args, error out on nonsensical combinations. 380228753Smm */ 381228753Smm /* -t implies -i if no mode was specified. */ 382228753Smm if (cpio->option_list && cpio->mode == '\0') 383228753Smm cpio->mode = 'i'; 384228753Smm /* -t requires -i */ 385228753Smm if (cpio->option_list && cpio->mode != 'i') 386228753Smm lafe_errc(1, 0, "Option -t requires -i"); 387228753Smm /* -n requires -it */ 388228753Smm if (cpio->option_numeric_uid_gid && !cpio->option_list) 389228753Smm lafe_errc(1, 0, "Option -n requires -it"); 390228753Smm /* Can only specify format when writing */ 391228753Smm if (cpio->format != NULL && cpio->mode != 'o') 392228753Smm lafe_errc(1, 0, "Option --format requires -o"); 393228753Smm /* -l requires -p */ 394228753Smm if (cpio->option_link && cpio->mode != 'p') 395228753Smm lafe_errc(1, 0, "Option -l requires -p"); 396232153Smm /* -v overrides -V */ 397232153Smm if (cpio->dot && cpio->verbose) 398232153Smm cpio->dot = 0; 399228753Smm /* TODO: Flag other nonsensical combinations. */ 400228753Smm 401228753Smm switch (cpio->mode) { 402228753Smm case 'o': 403228753Smm /* TODO: Implement old binary format in libarchive, 404228753Smm use that here. */ 405228753Smm if (cpio->format == NULL) 406228753Smm cpio->format = "odc"; /* Default format */ 407228753Smm 408228753Smm mode_out(cpio); 409228753Smm break; 410228753Smm case 'i': 411228753Smm while (*cpio->argv != NULL) { 412238856Smm if (archive_match_include_pattern(cpio->matching, 413238856Smm *cpio->argv) != ARCHIVE_OK) 414238856Smm lafe_errc(1, 0, "Error : %s", 415238856Smm archive_error_string(cpio->matching)); 416228753Smm --cpio->argc; 417228753Smm ++cpio->argv; 418228753Smm } 419228753Smm if (cpio->option_list) 420228753Smm mode_list(cpio); 421228753Smm else 422228753Smm mode_in(cpio); 423228753Smm break; 424228753Smm case 'p': 425228753Smm if (*cpio->argv == NULL || **cpio->argv == '\0') 426228753Smm lafe_errc(1, 0, 427228753Smm "-p mode requires a target directory"); 428228753Smm mode_pass(cpio, *cpio->argv); 429228753Smm break; 430228753Smm default: 431228753Smm lafe_errc(1, 0, 432228753Smm "Must specify at least one of -i, -o, or -p"); 433228753Smm } 434228753Smm 435238856Smm archive_match_free(cpio->matching); 436228753Smm free_cache(cpio->gname_cache); 437228753Smm free_cache(cpio->uname_cache); 438248616Smm free(cpio->destdir); 439302001Smm passphrase_free(cpio->ppbuff); 440228753Smm return (cpio->return_value); 441228753Smm} 442228753Smm 443228753Smmstatic void 444228753Smmusage(void) 445228753Smm{ 446228753Smm const char *p; 447228753Smm 448302001Smm p = lafe_getprogname(); 449228753Smm 450228753Smm fprintf(stderr, "Brief Usage:\n"); 451228753Smm fprintf(stderr, " List: %s -it < archive\n", p); 452228753Smm fprintf(stderr, " Extract: %s -i < archive\n", p); 453228753Smm fprintf(stderr, " Create: %s -o < filenames > archive\n", p); 454228753Smm fprintf(stderr, " Help: %s --help\n", p); 455228753Smm exit(1); 456228753Smm} 457228753Smm 458228753Smmstatic const char *long_help_msg = 459228753Smm "First option must be a mode specifier:\n" 460228753Smm " -i Input -o Output -p Pass\n" 461228753Smm "Common Options:\n" 462232153Smm " -v Verbose filenames -V one dot per file\n" 463228753Smm "Create: %p -o [options] < [list of files] > [archive]\n" 464228753Smm " -J,-y,-z,--lzma Compress archive with xz/bzip2/gzip/lzma\n" 465228753Smm " --format {odc|newc|ustar} Select archive format\n" 466228753Smm "List: %p -it < [archive]\n" 467228753Smm "Extract: %p -i [options] < [archive]\n"; 468228753Smm 469228753Smm 470228753Smm/* 471228753Smm * Note that the word 'bsdcpio' will always appear in the first line 472228753Smm * of output. 473228753Smm * 474228753Smm * In particular, /bin/sh scripts that need to test for the presence 475228753Smm * of bsdcpio can use the following template: 476228753Smm * 477228753Smm * if (cpio --help 2>&1 | grep bsdcpio >/dev/null 2>&1 ) then \ 478228753Smm * echo bsdcpio; else echo not bsdcpio; fi 479228753Smm */ 480228753Smmstatic void 481228753Smmlong_help(void) 482228753Smm{ 483228753Smm const char *prog; 484228753Smm const char *p; 485228753Smm 486302001Smm prog = lafe_getprogname(); 487228753Smm 488228753Smm fflush(stderr); 489228753Smm 490228753Smm p = (strcmp(prog,"bsdcpio") != 0) ? "(bsdcpio)" : ""; 491228753Smm printf("%s%s: manipulate archive files\n", prog, p); 492228753Smm 493228753Smm for (p = long_help_msg; *p != '\0'; p++) { 494228753Smm if (*p == '%') { 495228753Smm if (p[1] == 'p') { 496228753Smm fputs(prog, stdout); 497228753Smm p++; 498228753Smm } else 499228753Smm putchar('%'); 500228753Smm } else 501228753Smm putchar(*p); 502228753Smm } 503228753Smm version(); 504228753Smm} 505228753Smm 506228753Smmstatic void 507228753Smmversion(void) 508228753Smm{ 509337352Smm fprintf(stdout,"bsdcpio %s - %s \n", 510228753Smm BSDCPIO_VERSION_STRING, 511302001Smm archive_version_details()); 512228753Smm exit(0); 513228753Smm} 514228753Smm 515228753Smmstatic void 516228753Smmmode_out(struct cpio *cpio) 517228753Smm{ 518228753Smm struct archive_entry *entry, *spare; 519228753Smm struct lafe_line_reader *lr; 520228753Smm const char *p; 521228753Smm int r; 522228753Smm 523228753Smm if (cpio->option_append) 524228753Smm lafe_errc(1, 0, "Append mode not yet supported."); 525228753Smm 526228753Smm cpio->archive_read_disk = archive_read_disk_new(); 527228753Smm if (cpio->archive_read_disk == NULL) 528228753Smm lafe_errc(1, 0, "Failed to allocate archive object"); 529228753Smm if (cpio->option_follow_links) 530228753Smm archive_read_disk_set_symlink_logical(cpio->archive_read_disk); 531228753Smm else 532228753Smm archive_read_disk_set_symlink_physical(cpio->archive_read_disk); 533228753Smm archive_read_disk_set_standard_lookup(cpio->archive_read_disk); 534228753Smm 535228753Smm cpio->archive = archive_write_new(); 536228753Smm if (cpio->archive == NULL) 537228753Smm lafe_errc(1, 0, "Failed to allocate archive object"); 538228753Smm switch (cpio->compress) { 539248616Smm case OPTION_GRZIP: 540248616Smm r = archive_write_add_filter_grzip(cpio->archive); 541248616Smm break; 542228753Smm case 'J': 543248616Smm r = archive_write_add_filter_xz(cpio->archive); 544228753Smm break; 545248616Smm case OPTION_LRZIP: 546248616Smm r = archive_write_add_filter_lrzip(cpio->archive); 547248616Smm break; 548302001Smm case OPTION_LZ4: 549302001Smm r = archive_write_add_filter_lz4(cpio->archive); 550302001Smm break; 551228753Smm case OPTION_LZMA: 552248616Smm r = archive_write_add_filter_lzma(cpio->archive); 553228753Smm break; 554248616Smm case OPTION_LZOP: 555248616Smm r = archive_write_add_filter_lzop(cpio->archive); 556248616Smm break; 557324418Smm case OPTION_ZSTD: 558324418Smm r = archive_write_add_filter_zstd(cpio->archive); 559324418Smm break; 560228753Smm case 'j': case 'y': 561248616Smm r = archive_write_add_filter_bzip2(cpio->archive); 562228753Smm break; 563228753Smm case 'z': 564248616Smm r = archive_write_add_filter_gzip(cpio->archive); 565228753Smm break; 566228753Smm case 'Z': 567248616Smm r = archive_write_add_filter_compress(cpio->archive); 568228753Smm break; 569228753Smm default: 570248616Smm r = archive_write_add_filter_none(cpio->archive); 571228753Smm break; 572228753Smm } 573228753Smm if (r < ARCHIVE_WARN) 574228753Smm lafe_errc(1, 0, "Requested compression not available"); 575248616Smm switch (cpio->add_filter) { 576248616Smm case 0: 577248616Smm r = ARCHIVE_OK; 578248616Smm break; 579248616Smm case OPTION_B64ENCODE: 580248616Smm r = archive_write_add_filter_b64encode(cpio->archive); 581248616Smm break; 582248616Smm case OPTION_UUENCODE: 583248616Smm r = archive_write_add_filter_uuencode(cpio->archive); 584248616Smm break; 585248616Smm } 586248616Smm if (r < ARCHIVE_WARN) 587248616Smm lafe_errc(1, 0, "Requested filter not available"); 588228753Smm r = archive_write_set_format_by_name(cpio->archive, cpio->format); 589228753Smm if (r != ARCHIVE_OK) 590228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 591228753Smm archive_write_set_bytes_per_block(cpio->archive, cpio->bytes_per_block); 592228753Smm cpio->linkresolver = archive_entry_linkresolver_new(); 593228753Smm archive_entry_linkresolver_set_strategy(cpio->linkresolver, 594228753Smm archive_format(cpio->archive)); 595302001Smm if (cpio->passphrase != NULL) 596302001Smm r = archive_write_set_passphrase(cpio->archive, 597302001Smm cpio->passphrase); 598302001Smm else 599302001Smm r = archive_write_set_passphrase_callback(cpio->archive, cpio, 600302001Smm &passphrase_callback); 601302001Smm if (r != ARCHIVE_OK) 602302001Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 603228753Smm 604228753Smm /* 605228753Smm * The main loop: Copy each file into the output archive. 606228753Smm */ 607248616Smm r = archive_write_open_filename(cpio->archive, cpio->filename); 608228753Smm if (r != ARCHIVE_OK) 609228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 610228753Smm lr = lafe_line_reader("-", cpio->option_null); 611228753Smm while ((p = lafe_line_reader_next(lr)) != NULL) 612228753Smm file_to_archive(cpio, p); 613228753Smm lafe_line_reader_free(lr); 614228753Smm 615228753Smm /* 616228753Smm * The hardlink detection may have queued up a couple of entries 617228753Smm * that can now be flushed. 618228753Smm */ 619228753Smm entry = NULL; 620228753Smm archive_entry_linkify(cpio->linkresolver, &entry, &spare); 621228753Smm while (entry != NULL) { 622228753Smm entry_to_archive(cpio, entry); 623228753Smm archive_entry_free(entry); 624228753Smm entry = NULL; 625228753Smm archive_entry_linkify(cpio->linkresolver, &entry, &spare); 626228753Smm } 627228753Smm 628228753Smm r = archive_write_close(cpio->archive); 629232153Smm if (cpio->dot) 630232153Smm fprintf(stderr, "\n"); 631228753Smm if (r != ARCHIVE_OK) 632228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 633228753Smm 634228753Smm if (!cpio->quiet) { 635228753Smm int64_t blocks = 636248616Smm (archive_filter_bytes(cpio->archive, 0) + 511) 637228753Smm / 512; 638228753Smm fprintf(stderr, "%lu %s\n", (unsigned long)blocks, 639228753Smm blocks == 1 ? "block" : "blocks"); 640228753Smm } 641232153Smm archive_write_free(cpio->archive); 642318483Smm archive_entry_linkresolver_free(cpio->linkresolver); 643228753Smm} 644228753Smm 645232153Smmstatic const char * 646232153Smmremove_leading_slash(const char *p) 647232153Smm{ 648232153Smm const char *rp; 649232153Smm 650232153Smm /* Remove leading "//./" or "//?/" or "//?/UNC/" 651232153Smm * (absolute path prefixes used by Windows API) */ 652232153Smm if ((p[0] == '/' || p[0] == '\\') && 653232153Smm (p[1] == '/' || p[1] == '\\') && 654232153Smm (p[2] == '.' || p[2] == '?') && 655232153Smm (p[3] == '/' || p[3] == '\\')) 656232153Smm { 657232153Smm if (p[2] == '?' && 658232153Smm (p[4] == 'U' || p[4] == 'u') && 659232153Smm (p[5] == 'N' || p[5] == 'n') && 660232153Smm (p[6] == 'C' || p[6] == 'c') && 661232153Smm (p[7] == '/' || p[7] == '\\')) 662232153Smm p += 8; 663232153Smm else 664232153Smm p += 4; 665232153Smm } 666232153Smm do { 667232153Smm rp = p; 668232153Smm /* Remove leading drive letter from archives created 669232153Smm * on Windows. */ 670232153Smm if (((p[0] >= 'a' && p[0] <= 'z') || 671232153Smm (p[0] >= 'A' && p[0] <= 'Z')) && 672232153Smm p[1] == ':') { 673232153Smm p += 2; 674232153Smm } 675232153Smm /* Remove leading "/../", "//", etc. */ 676232153Smm while (p[0] == '/' || p[0] == '\\') { 677232153Smm if (p[1] == '.' && p[2] == '.' && 678232153Smm (p[3] == '/' || p[3] == '\\')) { 679232153Smm p += 3; /* Remove "/..", leave "/" 680232153Smm * for next pass. */ 681232153Smm } else 682232153Smm p += 1; /* Remove "/". */ 683232153Smm } 684232153Smm } while (rp != p); 685232153Smm return (p); 686232153Smm} 687232153Smm 688228753Smm/* 689228753Smm * This is used by both out mode (to copy objects from disk into 690228753Smm * an archive) and pass mode (to copy objects from disk to 691228753Smm * an archive_write_disk "archive"). 692228753Smm */ 693228753Smmstatic int 694228753Smmfile_to_archive(struct cpio *cpio, const char *srcpath) 695228753Smm{ 696228753Smm const char *destpath; 697228753Smm struct archive_entry *entry, *spare; 698228753Smm size_t len; 699228753Smm int r; 700228753Smm 701228753Smm /* 702228753Smm * Create an archive_entry describing the source file. 703228753Smm * 704228753Smm */ 705228753Smm entry = archive_entry_new(); 706228753Smm if (entry == NULL) 707228753Smm lafe_errc(1, 0, "Couldn't allocate entry"); 708228753Smm archive_entry_copy_sourcepath(entry, srcpath); 709228753Smm r = archive_read_disk_entry_from_file(cpio->archive_read_disk, 710228753Smm entry, -1, NULL); 711228753Smm if (r < ARCHIVE_FAILED) 712228753Smm lafe_errc(1, 0, "%s", 713228753Smm archive_error_string(cpio->archive_read_disk)); 714228753Smm if (r < ARCHIVE_OK) 715228753Smm lafe_warnc(0, "%s", 716228753Smm archive_error_string(cpio->archive_read_disk)); 717228753Smm if (r <= ARCHIVE_FAILED) { 718313571Smm archive_entry_free(entry); 719228753Smm cpio->return_value = 1; 720228753Smm return (r); 721228753Smm } 722228753Smm 723228777Smm if (cpio->uid_override >= 0) { 724228753Smm archive_entry_set_uid(entry, cpio->uid_override); 725228777Smm archive_entry_set_uname(entry, cpio->uname_override); 726228777Smm } 727228777Smm if (cpio->gid_override >= 0) { 728228753Smm archive_entry_set_gid(entry, cpio->gid_override); 729228777Smm archive_entry_set_gname(entry, cpio->gname_override); 730228777Smm } 731228753Smm 732228753Smm /* 733228753Smm * Generate a destination path for this entry. 734228753Smm * "destination path" is the name to which it will be copied in 735228753Smm * pass mode or the name that will go into the archive in 736228753Smm * output mode. 737228753Smm */ 738228753Smm destpath = srcpath; 739228753Smm if (cpio->destdir) { 740358927Smm len = cpio->destdir_len + strlen(srcpath) + 8; 741228753Smm if (len >= cpio->pass_destpath_alloc) { 742228753Smm while (len >= cpio->pass_destpath_alloc) { 743228753Smm cpio->pass_destpath_alloc += 512; 744228753Smm cpio->pass_destpath_alloc *= 2; 745228753Smm } 746228753Smm free(cpio->pass_destpath); 747228753Smm cpio->pass_destpath = malloc(cpio->pass_destpath_alloc); 748228753Smm if (cpio->pass_destpath == NULL) 749228753Smm lafe_errc(1, ENOMEM, 750228753Smm "Can't allocate path buffer"); 751228753Smm } 752228753Smm strcpy(cpio->pass_destpath, cpio->destdir); 753232153Smm strcat(cpio->pass_destpath, remove_leading_slash(srcpath)); 754228753Smm destpath = cpio->pass_destpath; 755228753Smm } 756228753Smm if (cpio->option_rename) 757228753Smm destpath = cpio_rename(destpath); 758228753Smm if (destpath == NULL) 759228753Smm return (0); 760228753Smm archive_entry_copy_pathname(entry, destpath); 761228753Smm 762228753Smm /* 763228753Smm * If we're trying to preserve hardlinks, match them here. 764228753Smm */ 765228753Smm spare = NULL; 766228753Smm if (cpio->linkresolver != NULL 767228753Smm && archive_entry_filetype(entry) != AE_IFDIR) { 768228753Smm archive_entry_linkify(cpio->linkresolver, &entry, &spare); 769228753Smm } 770228753Smm 771228753Smm if (entry != NULL) { 772228753Smm r = entry_to_archive(cpio, entry); 773228753Smm archive_entry_free(entry); 774228753Smm if (spare != NULL) { 775228753Smm if (r == 0) 776228753Smm r = entry_to_archive(cpio, spare); 777228753Smm archive_entry_free(spare); 778228753Smm } 779228753Smm } 780228753Smm return (r); 781228753Smm} 782228753Smm 783228753Smmstatic int 784228753Smmentry_to_archive(struct cpio *cpio, struct archive_entry *entry) 785228753Smm{ 786228753Smm const char *destpath = archive_entry_pathname(entry); 787228753Smm const char *srcpath = archive_entry_sourcepath(entry); 788228753Smm int fd = -1; 789228753Smm ssize_t bytes_read; 790228753Smm int r; 791228753Smm 792228753Smm /* Print out the destination name to the user. */ 793228753Smm if (cpio->verbose) 794228753Smm fprintf(stderr,"%s", destpath); 795232153Smm if (cpio->dot) 796232153Smm fprintf(stderr, "."); 797228753Smm 798228753Smm /* 799228753Smm * Option_link only makes sense in pass mode and for 800228753Smm * regular files. Also note: if a link operation fails 801228753Smm * because of cross-device restrictions, we'll fall back 802228753Smm * to copy mode for that entry. 803228753Smm * 804228753Smm * TODO: Test other cpio implementations to see if they 805228753Smm * hard-link anything other than regular files here. 806228753Smm */ 807228753Smm if (cpio->option_link 808228753Smm && archive_entry_filetype(entry) == AE_IFREG) 809228753Smm { 810228753Smm struct archive_entry *t; 811228753Smm /* Save the original entry in case we need it later. */ 812228753Smm t = archive_entry_clone(entry); 813228753Smm if (t == NULL) 814228753Smm lafe_errc(1, ENOMEM, "Can't create link"); 815228753Smm /* Note: link(2) doesn't create parent directories, 816228753Smm * so we use archive_write_header() instead as a 817228753Smm * convenience. */ 818228753Smm archive_entry_set_hardlink(t, srcpath); 819228753Smm /* This is a straight link that carries no data. */ 820228753Smm archive_entry_set_size(t, 0); 821228753Smm r = archive_write_header(cpio->archive, t); 822228753Smm archive_entry_free(t); 823228753Smm if (r != ARCHIVE_OK) 824228753Smm lafe_warnc(archive_errno(cpio->archive), 825228753Smm "%s", archive_error_string(cpio->archive)); 826228753Smm if (r == ARCHIVE_FATAL) 827228753Smm exit(1); 828228753Smm#ifdef EXDEV 829228753Smm if (r != ARCHIVE_OK && archive_errno(cpio->archive) == EXDEV) { 830228753Smm /* Cross-device link: Just fall through and use 831228753Smm * the original entry to copy the file over. */ 832228753Smm lafe_warnc(0, "Copying file instead"); 833228753Smm } else 834228753Smm#endif 835228753Smm return (0); 836228753Smm } 837228753Smm 838228753Smm /* 839228753Smm * Make sure we can open the file (if necessary) before 840228753Smm * trying to write the header. 841228753Smm */ 842228753Smm if (archive_entry_filetype(entry) == AE_IFREG) { 843228753Smm if (archive_entry_size(entry) > 0) { 844228753Smm fd = open(srcpath, O_RDONLY | O_BINARY); 845228753Smm if (fd < 0) { 846228753Smm lafe_warnc(errno, 847228753Smm "%s: could not open file", srcpath); 848228753Smm goto cleanup; 849228753Smm } 850228753Smm } 851228753Smm } else { 852228753Smm archive_entry_set_size(entry, 0); 853228753Smm } 854228753Smm 855228753Smm r = archive_write_header(cpio->archive, entry); 856228753Smm 857228753Smm if (r != ARCHIVE_OK) 858228753Smm lafe_warnc(archive_errno(cpio->archive), 859228753Smm "%s: %s", 860228753Smm srcpath, 861228753Smm archive_error_string(cpio->archive)); 862228753Smm 863228753Smm if (r == ARCHIVE_FATAL) 864228753Smm exit(1); 865228753Smm 866232153Smm if (r >= ARCHIVE_WARN && archive_entry_size(entry) > 0 && fd >= 0) { 867248616Smm bytes_read = read(fd, cpio->buff, (unsigned)cpio->buff_size); 868228753Smm while (bytes_read > 0) { 869248616Smm ssize_t bytes_write; 870248616Smm bytes_write = archive_write_data(cpio->archive, 871228753Smm cpio->buff, bytes_read); 872248616Smm if (bytes_write < 0) 873228753Smm lafe_errc(1, archive_errno(cpio->archive), 874228753Smm "%s", archive_error_string(cpio->archive)); 875248616Smm if (bytes_write < bytes_read) { 876228753Smm lafe_warnc(0, 877248616Smm "Truncated write; file may have " 878248616Smm "grown while being archived."); 879228753Smm } 880248616Smm bytes_read = read(fd, cpio->buff, 881248616Smm (unsigned)cpio->buff_size); 882228753Smm } 883228753Smm } 884228753Smm 885228753Smm fd = restore_time(cpio, entry, srcpath, fd); 886228753Smm 887228753Smmcleanup: 888228753Smm if (cpio->verbose) 889228753Smm fprintf(stderr,"\n"); 890228753Smm if (fd >= 0) 891228753Smm close(fd); 892228753Smm return (0); 893228753Smm} 894228753Smm 895228753Smmstatic int 896228753Smmrestore_time(struct cpio *cpio, struct archive_entry *entry, 897228753Smm const char *name, int fd) 898228753Smm{ 899228753Smm#ifndef HAVE_UTIMES 900228753Smm static int warned = 0; 901228753Smm 902228753Smm (void)cpio; /* UNUSED */ 903228753Smm (void)entry; /* UNUSED */ 904228753Smm (void)name; /* UNUSED */ 905228753Smm 906228753Smm if (!warned) 907228753Smm lafe_warnc(0, "Can't restore access times on this platform"); 908228753Smm warned = 1; 909228753Smm return (fd); 910228753Smm#else 911228753Smm#if defined(_WIN32) && !defined(__CYGWIN__) 912228753Smm struct __timeval times[2]; 913228753Smm#else 914228753Smm struct timeval times[2]; 915228753Smm#endif 916228753Smm 917228753Smm if (!cpio->option_atime_restore) 918228753Smm return (fd); 919228753Smm 920228753Smm times[1].tv_sec = archive_entry_mtime(entry); 921228753Smm times[1].tv_usec = archive_entry_mtime_nsec(entry) / 1000; 922228753Smm 923228753Smm times[0].tv_sec = archive_entry_atime(entry); 924228753Smm times[0].tv_usec = archive_entry_atime_nsec(entry) / 1000; 925228753Smm 926228753Smm#if defined(HAVE_FUTIMES) && !defined(__CYGWIN__) 927228753Smm if (fd >= 0 && futimes(fd, times) == 0) 928228753Smm return (fd); 929228753Smm#endif 930228753Smm /* 931228753Smm * Some platform cannot restore access times if the file descriptor 932228753Smm * is still opened. 933228753Smm */ 934228753Smm if (fd >= 0) { 935228753Smm close(fd); 936228753Smm fd = -1; 937228753Smm } 938228753Smm 939228753Smm#ifdef HAVE_LUTIMES 940228753Smm if (lutimes(name, times) != 0) 941228753Smm#else 942228753Smm if ((AE_IFLNK != archive_entry_filetype(entry)) 943228753Smm && utimes(name, times) != 0) 944228753Smm#endif 945228753Smm lafe_warnc(errno, "Can't update time for %s", name); 946228753Smm#endif 947228753Smm return (fd); 948228753Smm} 949228753Smm 950228753Smm 951228753Smmstatic void 952228753Smmmode_in(struct cpio *cpio) 953228753Smm{ 954228753Smm struct archive *a; 955228753Smm struct archive_entry *entry; 956228753Smm struct archive *ext; 957228753Smm const char *destpath; 958228753Smm int r; 959228753Smm 960228753Smm ext = archive_write_disk_new(); 961228753Smm if (ext == NULL) 962228753Smm lafe_errc(1, 0, "Couldn't allocate restore object"); 963228753Smm r = archive_write_disk_set_options(ext, cpio->extract_flags); 964228753Smm if (r != ARCHIVE_OK) 965228753Smm lafe_errc(1, 0, "%s", archive_error_string(ext)); 966228753Smm a = archive_read_new(); 967228753Smm if (a == NULL) 968228753Smm lafe_errc(1, 0, "Couldn't allocate archive object"); 969232153Smm archive_read_support_filter_all(a); 970228753Smm archive_read_support_format_all(a); 971302001Smm if (cpio->passphrase != NULL) 972302001Smm r = archive_read_add_passphrase(a, cpio->passphrase); 973302001Smm else 974302001Smm r = archive_read_set_passphrase_callback(a, cpio, 975302001Smm &passphrase_callback); 976302001Smm if (r != ARCHIVE_OK) 977302001Smm lafe_errc(1, 0, "%s", archive_error_string(a)); 978228753Smm 979248616Smm if (archive_read_open_filename(a, cpio->filename, 980248616Smm cpio->bytes_per_block)) 981228753Smm lafe_errc(1, archive_errno(a), 982228753Smm "%s", archive_error_string(a)); 983228753Smm for (;;) { 984228753Smm r = archive_read_next_header(a, &entry); 985228753Smm if (r == ARCHIVE_EOF) 986228753Smm break; 987228753Smm if (r != ARCHIVE_OK) { 988228753Smm lafe_errc(1, archive_errno(a), 989228753Smm "%s", archive_error_string(a)); 990228753Smm } 991238856Smm if (archive_match_path_excluded(cpio->matching, entry)) 992228753Smm continue; 993228753Smm if (cpio->option_rename) { 994228753Smm destpath = cpio_rename(archive_entry_pathname(entry)); 995228753Smm archive_entry_set_pathname(entry, destpath); 996228753Smm } else 997228753Smm destpath = archive_entry_pathname(entry); 998228753Smm if (destpath == NULL) 999228753Smm continue; 1000228753Smm if (cpio->verbose) 1001232153Smm fprintf(stderr, "%s\n", destpath); 1002232153Smm if (cpio->dot) 1003232153Smm fprintf(stderr, "."); 1004228753Smm if (cpio->uid_override >= 0) 1005228753Smm archive_entry_set_uid(entry, cpio->uid_override); 1006228753Smm if (cpio->gid_override >= 0) 1007228753Smm archive_entry_set_gid(entry, cpio->gid_override); 1008228753Smm r = archive_write_header(ext, entry); 1009228753Smm if (r != ARCHIVE_OK) { 1010228753Smm fprintf(stderr, "%s: %s\n", 1011228753Smm archive_entry_pathname(entry), 1012228753Smm archive_error_string(ext)); 1013232153Smm } else if (!archive_entry_size_is_set(entry) 1014232153Smm || archive_entry_size(entry) > 0) { 1015228753Smm r = extract_data(a, ext); 1016228753Smm if (r != ARCHIVE_OK) 1017228753Smm cpio->return_value = 1; 1018228753Smm } 1019228753Smm } 1020228753Smm r = archive_read_close(a); 1021232153Smm if (cpio->dot) 1022232153Smm fprintf(stderr, "\n"); 1023228753Smm if (r != ARCHIVE_OK) 1024228753Smm lafe_errc(1, 0, "%s", archive_error_string(a)); 1025228753Smm r = archive_write_close(ext); 1026228753Smm if (r != ARCHIVE_OK) 1027228753Smm lafe_errc(1, 0, "%s", archive_error_string(ext)); 1028228753Smm if (!cpio->quiet) { 1029248616Smm int64_t blocks = (archive_filter_bytes(a, 0) + 511) 1030228753Smm / 512; 1031228753Smm fprintf(stderr, "%lu %s\n", (unsigned long)blocks, 1032228753Smm blocks == 1 ? "block" : "blocks"); 1033228753Smm } 1034232153Smm archive_read_free(a); 1035232153Smm archive_write_free(ext); 1036228753Smm exit(cpio->return_value); 1037228753Smm} 1038228753Smm 1039228753Smm/* 1040228753Smm * Exits if there's a fatal error. Returns ARCHIVE_OK 1041228753Smm * if everything is kosher. 1042228753Smm */ 1043228753Smmstatic int 1044228753Smmextract_data(struct archive *ar, struct archive *aw) 1045228753Smm{ 1046228753Smm int r; 1047228753Smm size_t size; 1048228753Smm const void *block; 1049232153Smm int64_t offset; 1050228753Smm 1051228753Smm for (;;) { 1052228753Smm r = archive_read_data_block(ar, &block, &size, &offset); 1053228753Smm if (r == ARCHIVE_EOF) 1054228753Smm return (ARCHIVE_OK); 1055228753Smm if (r != ARCHIVE_OK) { 1056228753Smm lafe_warnc(archive_errno(ar), 1057228753Smm "%s", archive_error_string(ar)); 1058228753Smm exit(1); 1059228753Smm } 1060248616Smm r = (int)archive_write_data_block(aw, block, size, offset); 1061228753Smm if (r != ARCHIVE_OK) { 1062228753Smm lafe_warnc(archive_errno(aw), 1063228753Smm "%s", archive_error_string(aw)); 1064228753Smm return (r); 1065228753Smm } 1066228753Smm } 1067228753Smm} 1068228753Smm 1069228753Smmstatic void 1070228753Smmmode_list(struct cpio *cpio) 1071228753Smm{ 1072228753Smm struct archive *a; 1073228753Smm struct archive_entry *entry; 1074228753Smm int r; 1075228753Smm 1076228753Smm a = archive_read_new(); 1077228753Smm if (a == NULL) 1078228753Smm lafe_errc(1, 0, "Couldn't allocate archive object"); 1079232153Smm archive_read_support_filter_all(a); 1080228753Smm archive_read_support_format_all(a); 1081302001Smm if (cpio->passphrase != NULL) 1082302001Smm r = archive_read_add_passphrase(a, cpio->passphrase); 1083302001Smm else 1084302001Smm r = archive_read_set_passphrase_callback(a, cpio, 1085302001Smm &passphrase_callback); 1086302001Smm if (r != ARCHIVE_OK) 1087302001Smm lafe_errc(1, 0, "%s", archive_error_string(a)); 1088228753Smm 1089248616Smm if (archive_read_open_filename(a, cpio->filename, 1090248616Smm cpio->bytes_per_block)) 1091228753Smm lafe_errc(1, archive_errno(a), 1092228753Smm "%s", archive_error_string(a)); 1093228753Smm for (;;) { 1094228753Smm r = archive_read_next_header(a, &entry); 1095228753Smm if (r == ARCHIVE_EOF) 1096228753Smm break; 1097228753Smm if (r != ARCHIVE_OK) { 1098228753Smm lafe_errc(1, archive_errno(a), 1099228753Smm "%s", archive_error_string(a)); 1100228753Smm } 1101238856Smm if (archive_match_path_excluded(cpio->matching, entry)) 1102228753Smm continue; 1103228753Smm if (cpio->verbose) 1104228753Smm list_item_verbose(cpio, entry); 1105228753Smm else 1106228753Smm fprintf(stdout, "%s\n", archive_entry_pathname(entry)); 1107228753Smm } 1108228753Smm r = archive_read_close(a); 1109228753Smm if (r != ARCHIVE_OK) 1110228753Smm lafe_errc(1, 0, "%s", archive_error_string(a)); 1111228753Smm if (!cpio->quiet) { 1112248616Smm int64_t blocks = (archive_filter_bytes(a, 0) + 511) 1113228753Smm / 512; 1114228753Smm fprintf(stderr, "%lu %s\n", (unsigned long)blocks, 1115228753Smm blocks == 1 ? "block" : "blocks"); 1116228753Smm } 1117232153Smm archive_read_free(a); 1118228753Smm exit(0); 1119228753Smm} 1120228753Smm 1121228753Smm/* 1122228753Smm * Display information about the current file. 1123228753Smm * 1124228753Smm * The format here roughly duplicates the output of 'ls -l'. 1125228753Smm * This is based on SUSv2, where 'tar tv' is documented as 1126228753Smm * listing additional information in an "unspecified format," 1127228753Smm * and 'pax -l' is documented as using the same format as 'ls -l'. 1128228753Smm */ 1129228753Smmstatic void 1130228753Smmlist_item_verbose(struct cpio *cpio, struct archive_entry *entry) 1131228753Smm{ 1132228753Smm char size[32]; 1133228753Smm char date[32]; 1134228753Smm char uids[16], gids[16]; 1135228753Smm const char *uname, *gname; 1136228753Smm FILE *out = stdout; 1137228753Smm const char *fmt; 1138228753Smm time_t mtime; 1139228753Smm static time_t now; 1140358090Smm struct tm *ltime; 1141358090Smm#if defined(HAVE_LOCALTIME_R) || defined(HAVE__LOCALTIME64_S) 1142358090Smm struct tm tmbuf; 1143358090Smm#endif 1144358090Smm#if defined(HAVE__LOCALTIME64_S) 1145358090Smm errno_t terr; 1146358090Smm __time64_t tmptime; 1147358090Smm#endif 1148228753Smm 1149228753Smm if (!now) 1150228753Smm time(&now); 1151228753Smm 1152228753Smm if (cpio->option_numeric_uid_gid) { 1153228753Smm /* Format numeric uid/gid for display. */ 1154228753Smm strcpy(uids, cpio_i64toa(archive_entry_uid(entry))); 1155228753Smm uname = uids; 1156228753Smm strcpy(gids, cpio_i64toa(archive_entry_gid(entry))); 1157228753Smm gname = gids; 1158228753Smm } else { 1159228753Smm /* Use uname if it's present, else lookup name from uid. */ 1160228753Smm uname = archive_entry_uname(entry); 1161228753Smm if (uname == NULL) 1162232153Smm uname = lookup_uname(cpio, (uid_t)archive_entry_uid(entry)); 1163228753Smm /* Use gname if it's present, else lookup name from gid. */ 1164228753Smm gname = archive_entry_gname(entry); 1165228753Smm if (gname == NULL) 1166232153Smm gname = lookup_gname(cpio, (uid_t)archive_entry_gid(entry)); 1167228753Smm } 1168228753Smm 1169228753Smm /* Print device number or file size. */ 1170228753Smm if (archive_entry_filetype(entry) == AE_IFCHR 1171228753Smm || archive_entry_filetype(entry) == AE_IFBLK) { 1172228753Smm snprintf(size, sizeof(size), "%lu,%lu", 1173228753Smm (unsigned long)archive_entry_rdevmajor(entry), 1174228753Smm (unsigned long)archive_entry_rdevminor(entry)); 1175228753Smm } else { 1176228753Smm strcpy(size, cpio_i64toa(archive_entry_size(entry))); 1177228753Smm } 1178228753Smm 1179228753Smm /* Format the time using 'ls -l' conventions. */ 1180228753Smm mtime = archive_entry_mtime(entry); 1181228753Smm#if defined(_WIN32) && !defined(__CYGWIN__) 1182228753Smm /* Windows' strftime function does not support %e format. */ 1183228753Smm if (mtime - now > 365*86400/2 1184228753Smm || mtime - now < -365*86400/2) 1185228753Smm fmt = cpio->day_first ? "%d %b %Y" : "%b %d %Y"; 1186228753Smm else 1187228753Smm fmt = cpio->day_first ? "%d %b %H:%M" : "%b %d %H:%M"; 1188228753Smm#else 1189275031Sdim if (mtime - now > 365*86400/2 1190275031Sdim || mtime - now < -365*86400/2) 1191228753Smm fmt = cpio->day_first ? "%e %b %Y" : "%b %e %Y"; 1192228753Smm else 1193228753Smm fmt = cpio->day_first ? "%e %b %H:%M" : "%b %e %H:%M"; 1194228753Smm#endif 1195358090Smm#if defined(HAVE_LOCALTIME_R) 1196358090Smm ltime = localtime_r(&mtime, &tmbuf); 1197358090Smm#elif defined(HAVE__LOCALTIME64_S) 1198358090Smm tmptime = mtime; 1199358090Smm terr = _localtime64_s(&tmbuf, &tmptime); 1200358090Smm if (terr) 1201358090Smm ltime = NULL; 1202358090Smm else 1203358090Smm ltime = &tmbuf; 1204358090Smm#else 1205358090Smm ltime = localtime(&mtime); 1206358090Smm#endif 1207358090Smm strftime(date, sizeof(date), fmt, ltime); 1208228753Smm 1209228753Smm fprintf(out, "%s%3d %-8s %-8s %8s %12s %s", 1210228753Smm archive_entry_strmode(entry), 1211228753Smm archive_entry_nlink(entry), 1212228753Smm uname, gname, size, date, 1213228753Smm archive_entry_pathname(entry)); 1214228753Smm 1215228753Smm /* Extra information for links. */ 1216228753Smm if (archive_entry_hardlink(entry)) /* Hard link */ 1217228753Smm fprintf(out, " link to %s", archive_entry_hardlink(entry)); 1218228753Smm else if (archive_entry_symlink(entry)) /* Symbolic link */ 1219228753Smm fprintf(out, " -> %s", archive_entry_symlink(entry)); 1220228753Smm fprintf(out, "\n"); 1221228753Smm} 1222228753Smm 1223228753Smmstatic void 1224228753Smmmode_pass(struct cpio *cpio, const char *destdir) 1225228753Smm{ 1226228753Smm struct lafe_line_reader *lr; 1227228753Smm const char *p; 1228228753Smm int r; 1229228753Smm 1230228753Smm /* Ensure target dir has a trailing '/' to simplify path surgery. */ 1231358927Smm cpio->destdir_len = strlen(destdir); 1232358927Smm cpio->destdir = malloc(cpio->destdir_len + 8); 1233358927Smm memcpy(cpio->destdir, destdir, cpio->destdir_len); 1234358927Smm if (cpio->destdir_len == 0 || destdir[cpio->destdir_len - 1] != '/') 1235358927Smm cpio->destdir[cpio->destdir_len++] = '/'; 1236358927Smm cpio->destdir[cpio->destdir_len] = '\0'; 1237228753Smm 1238228753Smm cpio->archive = archive_write_disk_new(); 1239228753Smm if (cpio->archive == NULL) 1240228753Smm lafe_errc(1, 0, "Failed to allocate archive object"); 1241228753Smm r = archive_write_disk_set_options(cpio->archive, cpio->extract_flags); 1242228753Smm if (r != ARCHIVE_OK) 1243228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 1244228753Smm cpio->linkresolver = archive_entry_linkresolver_new(); 1245228753Smm archive_write_disk_set_standard_lookup(cpio->archive); 1246228753Smm 1247228753Smm cpio->archive_read_disk = archive_read_disk_new(); 1248228753Smm if (cpio->archive_read_disk == NULL) 1249228753Smm lafe_errc(1, 0, "Failed to allocate archive object"); 1250228753Smm if (cpio->option_follow_links) 1251228753Smm archive_read_disk_set_symlink_logical(cpio->archive_read_disk); 1252228753Smm else 1253228753Smm archive_read_disk_set_symlink_physical(cpio->archive_read_disk); 1254228753Smm archive_read_disk_set_standard_lookup(cpio->archive_read_disk); 1255228753Smm 1256228753Smm lr = lafe_line_reader("-", cpio->option_null); 1257228753Smm while ((p = lafe_line_reader_next(lr)) != NULL) 1258228753Smm file_to_archive(cpio, p); 1259228753Smm lafe_line_reader_free(lr); 1260228753Smm 1261228753Smm archive_entry_linkresolver_free(cpio->linkresolver); 1262228753Smm r = archive_write_close(cpio->archive); 1263232153Smm if (cpio->dot) 1264232153Smm fprintf(stderr, "\n"); 1265228753Smm if (r != ARCHIVE_OK) 1266228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 1267228753Smm 1268228753Smm if (!cpio->quiet) { 1269228753Smm int64_t blocks = 1270248616Smm (archive_filter_bytes(cpio->archive, 0) + 511) 1271228753Smm / 512; 1272228753Smm fprintf(stderr, "%lu %s\n", (unsigned long)blocks, 1273228753Smm blocks == 1 ? "block" : "blocks"); 1274228753Smm } 1275228753Smm 1276232153Smm archive_write_free(cpio->archive); 1277318483Smm free(cpio->pass_destpath); 1278228753Smm} 1279228753Smm 1280228753Smm/* 1281228753Smm * Prompt for a new name for this entry. Returns a pointer to the 1282228753Smm * new name or NULL if the entry should not be copied. This 1283228753Smm * implements the semantics defined in POSIX.1-1996, which specifies 1284228753Smm * that an input of '.' means the name should be unchanged. GNU cpio 1285228753Smm * treats '.' as a literal new name. 1286228753Smm */ 1287228753Smmstatic const char * 1288228753Smmcpio_rename(const char *name) 1289228753Smm{ 1290228753Smm static char buff[1024]; 1291228753Smm FILE *t; 1292228753Smm char *p, *ret; 1293232153Smm#if defined(_WIN32) && !defined(__CYGWIN__) 1294232153Smm FILE *to; 1295228753Smm 1296232153Smm t = fopen("CONIN$", "r"); 1297232153Smm if (t == NULL) 1298232153Smm return (name); 1299232153Smm to = fopen("CONOUT$", "w"); 1300302001Smm if (to == NULL) { 1301302001Smm fclose(t); 1302232153Smm return (name); 1303302001Smm } 1304232153Smm fprintf(to, "%s (Enter/./(new name))? ", name); 1305232153Smm fclose(to); 1306232153Smm#else 1307228753Smm t = fopen("/dev/tty", "r+"); 1308228753Smm if (t == NULL) 1309228753Smm return (name); 1310228753Smm fprintf(t, "%s (Enter/./(new name))? ", name); 1311228753Smm fflush(t); 1312232153Smm#endif 1313228753Smm 1314228753Smm p = fgets(buff, sizeof(buff), t); 1315228753Smm fclose(t); 1316228753Smm if (p == NULL) 1317228753Smm /* End-of-file is a blank line. */ 1318228753Smm return (NULL); 1319228753Smm 1320228753Smm while (*p == ' ' || *p == '\t') 1321228753Smm ++p; 1322228753Smm if (*p == '\n' || *p == '\0') 1323228753Smm /* Empty line. */ 1324228753Smm return (NULL); 1325228753Smm if (*p == '.' && p[1] == '\n') 1326228753Smm /* Single period preserves original name. */ 1327228753Smm return (name); 1328228753Smm ret = p; 1329228753Smm /* Trim the final newline. */ 1330228753Smm while (*p != '\0' && *p != '\n') 1331228753Smm ++p; 1332228753Smm /* Overwrite the final \n with a null character. */ 1333228753Smm *p = '\0'; 1334228753Smm return (ret); 1335228753Smm} 1336228753Smm 1337228753Smmstatic void 1338228753Smmfree_cache(struct name_cache *cache) 1339228753Smm{ 1340228753Smm size_t i; 1341228753Smm 1342228753Smm if (cache != NULL) { 1343228753Smm for (i = 0; i < cache->size; i++) 1344228753Smm free(cache->cache[i].name); 1345228753Smm free(cache); 1346228753Smm } 1347228753Smm} 1348228753Smm 1349228753Smm/* 1350228753Smm * Lookup uname/gname from uid/gid, return NULL if no match. 1351228753Smm */ 1352228753Smmstatic const char * 1353228753Smmlookup_name(struct cpio *cpio, struct name_cache **name_cache_variable, 1354228753Smm int (*lookup_fn)(struct cpio *, const char **, id_t), id_t id) 1355228753Smm{ 1356228753Smm char asnum[16]; 1357228753Smm struct name_cache *cache; 1358228753Smm const char *name; 1359228753Smm int slot; 1360228753Smm 1361228753Smm 1362228753Smm if (*name_cache_variable == NULL) { 1363311042Smm *name_cache_variable = calloc(1, sizeof(struct name_cache)); 1364228753Smm if (*name_cache_variable == NULL) 1365228753Smm lafe_errc(1, ENOMEM, "No more memory"); 1366228753Smm (*name_cache_variable)->size = name_cache_size; 1367228753Smm } 1368228753Smm 1369228753Smm cache = *name_cache_variable; 1370228753Smm cache->probes++; 1371228753Smm 1372228753Smm slot = id % cache->size; 1373228753Smm if (cache->cache[slot].name != NULL) { 1374228753Smm if (cache->cache[slot].id == id) { 1375228753Smm cache->hits++; 1376228753Smm return (cache->cache[slot].name); 1377228753Smm } 1378228753Smm free(cache->cache[slot].name); 1379228753Smm cache->cache[slot].name = NULL; 1380228753Smm } 1381228753Smm 1382316338Smm if (lookup_fn(cpio, &name, id)) { 1383316338Smm /* If lookup failed, format it as a number. */ 1384316338Smm snprintf(asnum, sizeof(asnum), "%u", (unsigned)id); 1385316338Smm name = asnum; 1386228753Smm } 1387316338Smm 1388316338Smm cache->cache[slot].name = strdup(name); 1389316338Smm if (cache->cache[slot].name != NULL) { 1390316338Smm cache->cache[slot].id = id; 1391316338Smm return (cache->cache[slot].name); 1392316338Smm } 1393316338Smm 1394316338Smm /* 1395316338Smm * Conveniently, NULL marks an empty slot, so 1396316338Smm * if the strdup() fails, we've just failed to 1397316338Smm * cache it. No recovery necessary. 1398316338Smm */ 1399228753Smm return (NULL); 1400228753Smm} 1401228753Smm 1402228753Smmstatic const char * 1403228753Smmlookup_uname(struct cpio *cpio, uid_t uid) 1404228753Smm{ 1405228753Smm return (lookup_name(cpio, &cpio->uname_cache, 1406228753Smm &lookup_uname_helper, (id_t)uid)); 1407228753Smm} 1408228753Smm 1409228753Smmstatic int 1410228753Smmlookup_uname_helper(struct cpio *cpio, const char **name, id_t id) 1411228753Smm{ 1412228753Smm struct passwd *pwent; 1413228753Smm 1414228753Smm (void)cpio; /* UNUSED */ 1415228753Smm 1416228753Smm errno = 0; 1417228753Smm pwent = getpwuid((uid_t)id); 1418228753Smm if (pwent == NULL) { 1419316338Smm if (errno && errno != ENOENT) 1420238856Smm lafe_warnc(errno, "getpwuid(%s) failed", 1421238856Smm cpio_i64toa((int64_t)id)); 1422316338Smm return 1; 1423228753Smm } 1424228753Smm 1425228753Smm *name = pwent->pw_name; 1426316338Smm return 0; 1427228753Smm} 1428228753Smm 1429228753Smmstatic const char * 1430228753Smmlookup_gname(struct cpio *cpio, gid_t gid) 1431228753Smm{ 1432228753Smm return (lookup_name(cpio, &cpio->gname_cache, 1433228753Smm &lookup_gname_helper, (id_t)gid)); 1434228753Smm} 1435228753Smm 1436228753Smmstatic int 1437228753Smmlookup_gname_helper(struct cpio *cpio, const char **name, id_t id) 1438228753Smm{ 1439228753Smm struct group *grent; 1440228753Smm 1441228753Smm (void)cpio; /* UNUSED */ 1442228753Smm 1443228753Smm errno = 0; 1444228753Smm grent = getgrgid((gid_t)id); 1445228753Smm if (grent == NULL) { 1446316338Smm if (errno && errno != ENOENT) 1447238856Smm lafe_warnc(errno, "getgrgid(%s) failed", 1448238856Smm cpio_i64toa((int64_t)id)); 1449316338Smm return 1; 1450228753Smm } 1451228753Smm 1452228753Smm *name = grent->gr_name; 1453316338Smm return 0; 1454228753Smm} 1455228753Smm 1456228753Smm/* 1457228753Smm * It would be nice to just use printf() for formatting large numbers, 1458228753Smm * but the compatibility problems are a big headache. Hence the 1459228753Smm * following simple utility function. 1460228753Smm */ 1461228753Smmconst char * 1462228753Smmcpio_i64toa(int64_t n0) 1463228753Smm{ 1464232153Smm /* 2^64 =~ 1.8 * 10^19, so 20 decimal digits suffice. 1465232153Smm * We also need 1 byte for '-' and 1 for '\0'. 1466232153Smm */ 1467228753Smm static char buff[22]; 1468228753Smm int64_t n = n0 < 0 ? -n0 : n0; 1469228753Smm char *p = buff + sizeof(buff); 1470228753Smm 1471228753Smm *--p = '\0'; 1472228753Smm do { 1473228753Smm *--p = '0' + (int)(n % 10); 1474228753Smm n /= 10; 1475228753Smm } while (n > 0); 1476228753Smm if (n0 < 0) 1477228753Smm *--p = '-'; 1478228753Smm return p; 1479228753Smm} 1480302001Smm 1481302001Smm#define PPBUFF_SIZE 1024 1482302001Smmstatic const char * 1483302001Smmpassphrase_callback(struct archive *a, void *_client_data) 1484302001Smm{ 1485302001Smm struct cpio *cpio = (struct cpio *)_client_data; 1486302001Smm (void)a; /* UNUSED */ 1487302001Smm 1488302001Smm if (cpio->ppbuff == NULL) { 1489302001Smm cpio->ppbuff = malloc(PPBUFF_SIZE); 1490302001Smm if (cpio->ppbuff == NULL) 1491302001Smm lafe_errc(1, errno, "Out of memory"); 1492302001Smm } 1493302001Smm return lafe_readpassphrase("Enter passphrase:", 1494302001Smm cpio->ppbuff, PPBUFF_SIZE); 1495302001Smm} 1496302001Smm 1497302001Smmstatic void 1498302001Smmpassphrase_free(char *ppbuff) 1499302001Smm{ 1500302001Smm if (ppbuff != NULL) { 1501302001Smm memset(ppbuff, 0, PPBUFF_SIZE); 1502302001Smm free(ppbuff); 1503302001Smm } 1504302001Smm} 1505