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/11/contrib/libarchive/cpio/cpio.c 370535 2021-09-10 08:34:36Z git2svn $"); 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" 85299529Smm#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 *); 111315432Smmstatic 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); 118315432Smmstatic void mode_in(struct cpio *) __LA_DEAD; 119315432Smmstatic 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); 125315432Smmstatic void usage(void) __LA_DEAD; 126315432Smmstatic void version(void) __LA_DEAD; 127299529Smmstatic const char * passphrase_callback(struct archive *, void *); 128299529Smmstatic 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; 137342360Smm char *tptr; 138228753Smm int uid, gid; 139342360Smm 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 156299529Smm /* Set lafe_progname before calling lafe_warnc. */ 157299529Smm lafe_setprogname(*argv, "bsdcpio"); 158299529Smm 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; 175299896Smm 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; 195370535Sgit2svn case '6': /* in/out: assume/create 6th edition (PWB) format */ 196370535Sgit2svn cpio->option_pwb = 1; 197370535Sgit2svn break; 198370535Sgit2svn case '7': /* out: create archive using 7th Edition binary format */ 199370535Sgit2svn cpio->format = "bin"; 200370535Sgit2svn break; 201228753Smm case 'A': /* NetBSD/OpenBSD */ 202228753Smm cpio->option_append = 1; 203228753Smm break; 204228753Smm case 'a': /* POSIX 1997 */ 205228753Smm cpio->option_atime_restore = 1; 206228753Smm break; 207228753Smm case 'B': /* POSIX 1997 */ 208228753Smm cpio->bytes_per_block = 5120; 209228753Smm break; 210248616Smm case OPTION_B64ENCODE: 211248616Smm cpio->add_filter = opt; 212248616Smm break; 213228753Smm case 'C': /* NetBSD/OpenBSD */ 214342360Smm errno = 0; 215342360Smm tptr = NULL; 216342360Smm t = (int)strtol(cpio->argument, &tptr, 10); 217342360Smm if (errno || t <= 0 || *(cpio->argument) == '\0' || 218342360Smm tptr == NULL || *tptr != '\0') { 219342360Smm lafe_errc(1, 0, "Invalid blocksize: %s", 220342360Smm cpio->argument); 221342360Smm } 222342360Smm cpio->bytes_per_block = t; 223228753Smm break; 224228753Smm case 'c': /* POSIX 1997 */ 225228753Smm cpio->format = "odc"; 226228753Smm break; 227228753Smm case 'd': /* POSIX 1997 */ 228228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_NO_AUTODIR; 229228753Smm break; 230228753Smm case 'E': /* NetBSD/OpenBSD */ 231238856Smm if (archive_match_include_pattern_from_file( 232238856Smm cpio->matching, cpio->argument, 233238856Smm cpio->option_null) != ARCHIVE_OK) 234238856Smm lafe_errc(1, 0, "Error : %s", 235238856Smm archive_error_string(cpio->matching)); 236228753Smm break; 237228753Smm case 'F': /* NetBSD/OpenBSD/GNU cpio */ 238232153Smm cpio->filename = cpio->argument; 239228753Smm break; 240228753Smm case 'f': /* POSIX 1997 */ 241238856Smm if (archive_match_exclude_pattern(cpio->matching, 242238856Smm cpio->argument) != ARCHIVE_OK) 243238856Smm lafe_errc(1, 0, "Error : %s", 244238856Smm archive_error_string(cpio->matching)); 245228753Smm break; 246248616Smm case OPTION_GRZIP: 247248616Smm cpio->compress = opt; 248248616Smm break; 249228753Smm case 'H': /* GNU cpio (also --format) */ 250232153Smm cpio->format = cpio->argument; 251228753Smm break; 252228753Smm case 'h': 253228753Smm long_help(); 254228753Smm break; 255228753Smm case 'I': /* NetBSD/OpenBSD */ 256232153Smm cpio->filename = cpio->argument; 257228753Smm break; 258228753Smm case 'i': /* POSIX 1997 */ 259228753Smm if (cpio->mode != '\0') 260228753Smm lafe_errc(1, 0, 261228753Smm "Cannot use both -i and -%c", cpio->mode); 262228753Smm cpio->mode = opt; 263228753Smm break; 264228753Smm case 'J': /* GNU tar, others */ 265228753Smm cpio->compress = opt; 266228753Smm break; 267228753Smm case 'j': /* GNU tar, others */ 268228753Smm cpio->compress = opt; 269228753Smm break; 270228753Smm case OPTION_INSECURE: 271228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_SYMLINKS; 272228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NODOTDOT; 273299896Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS; 274228753Smm break; 275228753Smm case 'L': /* GNU cpio */ 276228753Smm cpio->option_follow_links = 1; 277228753Smm break; 278228753Smm case 'l': /* POSIX 1997 */ 279228753Smm cpio->option_link = 1; 280228753Smm break; 281248616Smm case OPTION_LRZIP: 282299529Smm case OPTION_LZ4: 283228753Smm case OPTION_LZMA: /* GNU tar, others */ 284248616Smm case OPTION_LZOP: /* GNU tar, others */ 285324417Smm case OPTION_ZSTD: 286228753Smm cpio->compress = opt; 287228753Smm break; 288228753Smm case 'm': /* POSIX 1997 */ 289228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_TIME; 290228753Smm break; 291228753Smm case 'n': /* GNU cpio */ 292228753Smm cpio->option_numeric_uid_gid = 1; 293228753Smm break; 294228753Smm case OPTION_NO_PRESERVE_OWNER: /* GNU cpio */ 295228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_OWNER; 296228753Smm break; 297228753Smm case 'O': /* GNU cpio */ 298232153Smm cpio->filename = cpio->argument; 299228753Smm break; 300228753Smm case 'o': /* POSIX 1997 */ 301228753Smm if (cpio->mode != '\0') 302228753Smm lafe_errc(1, 0, 303228753Smm "Cannot use both -o and -%c", cpio->mode); 304228753Smm cpio->mode = opt; 305228753Smm break; 306228753Smm case 'p': /* POSIX 1997 */ 307228753Smm if (cpio->mode != '\0') 308228753Smm lafe_errc(1, 0, 309228753Smm "Cannot use both -p and -%c", cpio->mode); 310228753Smm cpio->mode = opt; 311228753Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NODOTDOT; 312299896Smm cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS; 313228753Smm break; 314299529Smm case OPTION_PASSPHRASE: 315299529Smm cpio->passphrase = cpio->argument; 316299529Smm break; 317228753Smm case OPTION_PRESERVE_OWNER: 318228753Smm cpio->extract_flags |= ARCHIVE_EXTRACT_OWNER; 319228753Smm break; 320228753Smm case OPTION_QUIET: /* GNU cpio */ 321228753Smm cpio->quiet = 1; 322228753Smm break; 323228753Smm case 'R': /* GNU cpio, also --owner */ 324228777Smm /* TODO: owner_parse should return uname/gname 325228777Smm * also; use that to set [ug]name_override. */ 326232153Smm errmsg = owner_parse(cpio->argument, &uid, &gid); 327228753Smm if (errmsg) { 328228753Smm lafe_warnc(-1, "%s", errmsg); 329228753Smm usage(); 330228753Smm } 331228777Smm if (uid != -1) { 332228753Smm cpio->uid_override = uid; 333228777Smm cpio->uname_override = NULL; 334228777Smm } 335228777Smm if (gid != -1) { 336228753Smm cpio->gid_override = gid; 337228777Smm cpio->gname_override = NULL; 338228777Smm } 339228753Smm break; 340228753Smm case 'r': /* POSIX 1997 */ 341228753Smm cpio->option_rename = 1; 342228753Smm break; 343228753Smm case 't': /* POSIX 1997 */ 344228753Smm cpio->option_list = 1; 345228753Smm break; 346228753Smm case 'u': /* POSIX 1997 */ 347228753Smm cpio->extract_flags 348228753Smm &= ~ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER; 349228753Smm break; 350248616Smm case OPTION_UUENCODE: 351248616Smm cpio->add_filter = opt; 352248616Smm break; 353228753Smm case 'v': /* POSIX 1997 */ 354228753Smm cpio->verbose++; 355228753Smm break; 356232153Smm case 'V': /* GNU cpio */ 357232153Smm cpio->dot++; 358232153Smm break; 359228753Smm case OPTION_VERSION: /* GNU convention */ 360228753Smm version(); 361228753Smm break; 362228753Smm#if 0 363228753Smm /* 364228753Smm * cpio_getopt() handles -W specially, so it's not 365228753Smm * available here. 366228753Smm */ 367228753Smm case 'W': /* Obscure, but useful GNU convention. */ 368228753Smm break; 369228753Smm#endif 370228753Smm case 'y': /* tar convention */ 371228753Smm cpio->compress = opt; 372228753Smm break; 373228753Smm case 'Z': /* tar convention */ 374228753Smm cpio->compress = opt; 375228753Smm break; 376228753Smm case 'z': /* tar convention */ 377228753Smm cpio->compress = opt; 378228753Smm break; 379228753Smm default: 380228753Smm usage(); 381228753Smm } 382228753Smm } 383228753Smm 384228753Smm /* 385228753Smm * Sanity-check args, error out on nonsensical combinations. 386228753Smm */ 387228753Smm /* -t implies -i if no mode was specified. */ 388228753Smm if (cpio->option_list && cpio->mode == '\0') 389228753Smm cpio->mode = 'i'; 390228753Smm /* -t requires -i */ 391228753Smm if (cpio->option_list && cpio->mode != 'i') 392228753Smm lafe_errc(1, 0, "Option -t requires -i"); 393228753Smm /* -n requires -it */ 394228753Smm if (cpio->option_numeric_uid_gid && !cpio->option_list) 395228753Smm lafe_errc(1, 0, "Option -n requires -it"); 396228753Smm /* Can only specify format when writing */ 397228753Smm if (cpio->format != NULL && cpio->mode != 'o') 398228753Smm lafe_errc(1, 0, "Option --format requires -o"); 399228753Smm /* -l requires -p */ 400228753Smm if (cpio->option_link && cpio->mode != 'p') 401228753Smm lafe_errc(1, 0, "Option -l requires -p"); 402232153Smm /* -v overrides -V */ 403232153Smm if (cpio->dot && cpio->verbose) 404232153Smm cpio->dot = 0; 405228753Smm /* TODO: Flag other nonsensical combinations. */ 406228753Smm 407228753Smm switch (cpio->mode) { 408228753Smm case 'o': 409370535Sgit2svn if (cpio->format == NULL) { 410370535Sgit2svn if (cpio->option_pwb) 411370535Sgit2svn cpio->format = "pwb"; 412370535Sgit2svn else 413370535Sgit2svn cpio->format = "cpio"; 414370535Sgit2svn } 415228753Smm mode_out(cpio); 416228753Smm break; 417228753Smm case 'i': 418228753Smm while (*cpio->argv != NULL) { 419238856Smm if (archive_match_include_pattern(cpio->matching, 420238856Smm *cpio->argv) != ARCHIVE_OK) 421238856Smm lafe_errc(1, 0, "Error : %s", 422238856Smm archive_error_string(cpio->matching)); 423228753Smm --cpio->argc; 424228753Smm ++cpio->argv; 425228753Smm } 426228753Smm if (cpio->option_list) 427228753Smm mode_list(cpio); 428228753Smm else 429228753Smm mode_in(cpio); 430228753Smm break; 431228753Smm case 'p': 432228753Smm if (*cpio->argv == NULL || **cpio->argv == '\0') 433228753Smm lafe_errc(1, 0, 434228753Smm "-p mode requires a target directory"); 435228753Smm mode_pass(cpio, *cpio->argv); 436228753Smm break; 437228753Smm default: 438228753Smm lafe_errc(1, 0, 439228753Smm "Must specify at least one of -i, -o, or -p"); 440228753Smm } 441228753Smm 442238856Smm archive_match_free(cpio->matching); 443228753Smm free_cache(cpio->gname_cache); 444228753Smm free_cache(cpio->uname_cache); 445248616Smm free(cpio->destdir); 446299529Smm passphrase_free(cpio->ppbuff); 447228753Smm return (cpio->return_value); 448228753Smm} 449228753Smm 450228753Smmstatic void 451228753Smmusage(void) 452228753Smm{ 453228753Smm const char *p; 454228753Smm 455299529Smm p = lafe_getprogname(); 456228753Smm 457228753Smm fprintf(stderr, "Brief Usage:\n"); 458228753Smm fprintf(stderr, " List: %s -it < archive\n", p); 459228753Smm fprintf(stderr, " Extract: %s -i < archive\n", p); 460228753Smm fprintf(stderr, " Create: %s -o < filenames > archive\n", p); 461228753Smm fprintf(stderr, " Help: %s --help\n", p); 462228753Smm exit(1); 463228753Smm} 464228753Smm 465228753Smmstatic const char *long_help_msg = 466228753Smm "First option must be a mode specifier:\n" 467228753Smm " -i Input -o Output -p Pass\n" 468228753Smm "Common Options:\n" 469232153Smm " -v Verbose filenames -V one dot per file\n" 470228753Smm "Create: %p -o [options] < [list of files] > [archive]\n" 471228753Smm " -J,-y,-z,--lzma Compress archive with xz/bzip2/gzip/lzma\n" 472370535Sgit2svn " --format {pwb|bin|odc|newc|ustar} Select archive format\n" 473228753Smm "List: %p -it < [archive]\n" 474228753Smm "Extract: %p -i [options] < [archive]\n"; 475228753Smm 476228753Smm 477228753Smm/* 478228753Smm * Note that the word 'bsdcpio' will always appear in the first line 479228753Smm * of output. 480228753Smm * 481228753Smm * In particular, /bin/sh scripts that need to test for the presence 482228753Smm * of bsdcpio can use the following template: 483228753Smm * 484228753Smm * if (cpio --help 2>&1 | grep bsdcpio >/dev/null 2>&1 ) then \ 485228753Smm * echo bsdcpio; else echo not bsdcpio; fi 486228753Smm */ 487228753Smmstatic void 488228753Smmlong_help(void) 489228753Smm{ 490228753Smm const char *prog; 491228753Smm const char *p; 492228753Smm 493299529Smm prog = lafe_getprogname(); 494228753Smm 495228753Smm fflush(stderr); 496228753Smm 497228753Smm p = (strcmp(prog,"bsdcpio") != 0) ? "(bsdcpio)" : ""; 498228753Smm printf("%s%s: manipulate archive files\n", prog, p); 499228753Smm 500228753Smm for (p = long_help_msg; *p != '\0'; p++) { 501228753Smm if (*p == '%') { 502228753Smm if (p[1] == 'p') { 503228753Smm fputs(prog, stdout); 504228753Smm p++; 505228753Smm } else 506228753Smm putchar('%'); 507228753Smm } else 508228753Smm putchar(*p); 509228753Smm } 510228753Smm version(); 511228753Smm} 512228753Smm 513228753Smmstatic void 514228753Smmversion(void) 515228753Smm{ 516337351Smm fprintf(stdout,"bsdcpio %s - %s \n", 517228753Smm BSDCPIO_VERSION_STRING, 518299529Smm archive_version_details()); 519228753Smm exit(0); 520228753Smm} 521228753Smm 522228753Smmstatic void 523228753Smmmode_out(struct cpio *cpio) 524228753Smm{ 525228753Smm struct archive_entry *entry, *spare; 526228753Smm struct lafe_line_reader *lr; 527228753Smm const char *p; 528228753Smm int r; 529228753Smm 530228753Smm if (cpio->option_append) 531228753Smm lafe_errc(1, 0, "Append mode not yet supported."); 532228753Smm 533228753Smm cpio->archive_read_disk = archive_read_disk_new(); 534228753Smm if (cpio->archive_read_disk == NULL) 535228753Smm lafe_errc(1, 0, "Failed to allocate archive object"); 536228753Smm if (cpio->option_follow_links) 537228753Smm archive_read_disk_set_symlink_logical(cpio->archive_read_disk); 538228753Smm else 539228753Smm archive_read_disk_set_symlink_physical(cpio->archive_read_disk); 540228753Smm archive_read_disk_set_standard_lookup(cpio->archive_read_disk); 541228753Smm 542228753Smm cpio->archive = archive_write_new(); 543228753Smm if (cpio->archive == NULL) 544228753Smm lafe_errc(1, 0, "Failed to allocate archive object"); 545228753Smm switch (cpio->compress) { 546248616Smm case OPTION_GRZIP: 547248616Smm r = archive_write_add_filter_grzip(cpio->archive); 548248616Smm break; 549228753Smm case 'J': 550248616Smm r = archive_write_add_filter_xz(cpio->archive); 551228753Smm break; 552248616Smm case OPTION_LRZIP: 553248616Smm r = archive_write_add_filter_lrzip(cpio->archive); 554248616Smm break; 555299529Smm case OPTION_LZ4: 556299529Smm r = archive_write_add_filter_lz4(cpio->archive); 557299529Smm break; 558228753Smm case OPTION_LZMA: 559248616Smm r = archive_write_add_filter_lzma(cpio->archive); 560228753Smm break; 561248616Smm case OPTION_LZOP: 562248616Smm r = archive_write_add_filter_lzop(cpio->archive); 563248616Smm break; 564324417Smm case OPTION_ZSTD: 565324417Smm r = archive_write_add_filter_zstd(cpio->archive); 566324417Smm break; 567228753Smm case 'j': case 'y': 568248616Smm r = archive_write_add_filter_bzip2(cpio->archive); 569228753Smm break; 570228753Smm case 'z': 571248616Smm r = archive_write_add_filter_gzip(cpio->archive); 572228753Smm break; 573228753Smm case 'Z': 574248616Smm r = archive_write_add_filter_compress(cpio->archive); 575228753Smm break; 576228753Smm default: 577248616Smm r = archive_write_add_filter_none(cpio->archive); 578228753Smm break; 579228753Smm } 580228753Smm if (r < ARCHIVE_WARN) 581228753Smm lafe_errc(1, 0, "Requested compression not available"); 582248616Smm switch (cpio->add_filter) { 583248616Smm case 0: 584248616Smm r = ARCHIVE_OK; 585248616Smm break; 586248616Smm case OPTION_B64ENCODE: 587248616Smm r = archive_write_add_filter_b64encode(cpio->archive); 588248616Smm break; 589248616Smm case OPTION_UUENCODE: 590248616Smm r = archive_write_add_filter_uuencode(cpio->archive); 591248616Smm break; 592248616Smm } 593248616Smm if (r < ARCHIVE_WARN) 594248616Smm lafe_errc(1, 0, "Requested filter not available"); 595228753Smm r = archive_write_set_format_by_name(cpio->archive, cpio->format); 596228753Smm if (r != ARCHIVE_OK) 597228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 598228753Smm archive_write_set_bytes_per_block(cpio->archive, cpio->bytes_per_block); 599228753Smm cpio->linkresolver = archive_entry_linkresolver_new(); 600228753Smm archive_entry_linkresolver_set_strategy(cpio->linkresolver, 601228753Smm archive_format(cpio->archive)); 602299529Smm if (cpio->passphrase != NULL) 603299529Smm r = archive_write_set_passphrase(cpio->archive, 604299529Smm cpio->passphrase); 605299529Smm else 606299529Smm r = archive_write_set_passphrase_callback(cpio->archive, cpio, 607299529Smm &passphrase_callback); 608299529Smm if (r != ARCHIVE_OK) 609299529Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 610228753Smm 611228753Smm /* 612228753Smm * The main loop: Copy each file into the output archive. 613228753Smm */ 614248616Smm r = archive_write_open_filename(cpio->archive, cpio->filename); 615228753Smm if (r != ARCHIVE_OK) 616228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 617228753Smm lr = lafe_line_reader("-", cpio->option_null); 618228753Smm while ((p = lafe_line_reader_next(lr)) != NULL) 619228753Smm file_to_archive(cpio, p); 620228753Smm lafe_line_reader_free(lr); 621228753Smm 622228753Smm /* 623228753Smm * The hardlink detection may have queued up a couple of entries 624228753Smm * that can now be flushed. 625228753Smm */ 626228753Smm entry = NULL; 627228753Smm archive_entry_linkify(cpio->linkresolver, &entry, &spare); 628228753Smm while (entry != NULL) { 629228753Smm entry_to_archive(cpio, entry); 630228753Smm archive_entry_free(entry); 631228753Smm entry = NULL; 632228753Smm archive_entry_linkify(cpio->linkresolver, &entry, &spare); 633228753Smm } 634228753Smm 635228753Smm r = archive_write_close(cpio->archive); 636232153Smm if (cpio->dot) 637232153Smm fprintf(stderr, "\n"); 638228753Smm if (r != ARCHIVE_OK) 639228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 640228753Smm 641228753Smm if (!cpio->quiet) { 642228753Smm int64_t blocks = 643248616Smm (archive_filter_bytes(cpio->archive, 0) + 511) 644228753Smm / 512; 645228753Smm fprintf(stderr, "%lu %s\n", (unsigned long)blocks, 646228753Smm blocks == 1 ? "block" : "blocks"); 647228753Smm } 648232153Smm archive_write_free(cpio->archive); 649318482Smm archive_entry_linkresolver_free(cpio->linkresolver); 650228753Smm} 651228753Smm 652232153Smmstatic const char * 653232153Smmremove_leading_slash(const char *p) 654232153Smm{ 655232153Smm const char *rp; 656232153Smm 657232153Smm /* Remove leading "//./" or "//?/" or "//?/UNC/" 658232153Smm * (absolute path prefixes used by Windows API) */ 659232153Smm if ((p[0] == '/' || p[0] == '\\') && 660232153Smm (p[1] == '/' || p[1] == '\\') && 661232153Smm (p[2] == '.' || p[2] == '?') && 662232153Smm (p[3] == '/' || p[3] == '\\')) 663232153Smm { 664232153Smm if (p[2] == '?' && 665232153Smm (p[4] == 'U' || p[4] == 'u') && 666232153Smm (p[5] == 'N' || p[5] == 'n') && 667232153Smm (p[6] == 'C' || p[6] == 'c') && 668232153Smm (p[7] == '/' || p[7] == '\\')) 669232153Smm p += 8; 670232153Smm else 671232153Smm p += 4; 672232153Smm } 673232153Smm do { 674232153Smm rp = p; 675232153Smm /* Remove leading drive letter from archives created 676232153Smm * on Windows. */ 677232153Smm if (((p[0] >= 'a' && p[0] <= 'z') || 678232153Smm (p[0] >= 'A' && p[0] <= 'Z')) && 679232153Smm p[1] == ':') { 680232153Smm p += 2; 681232153Smm } 682232153Smm /* Remove leading "/../", "//", etc. */ 683232153Smm while (p[0] == '/' || p[0] == '\\') { 684232153Smm if (p[1] == '.' && p[2] == '.' && 685232153Smm (p[3] == '/' || p[3] == '\\')) { 686232153Smm p += 3; /* Remove "/..", leave "/" 687232153Smm * for next pass. */ 688232153Smm } else 689232153Smm p += 1; /* Remove "/". */ 690232153Smm } 691232153Smm } while (rp != p); 692232153Smm return (p); 693232153Smm} 694232153Smm 695228753Smm/* 696228753Smm * This is used by both out mode (to copy objects from disk into 697228753Smm * an archive) and pass mode (to copy objects from disk to 698228753Smm * an archive_write_disk "archive"). 699228753Smm */ 700228753Smmstatic int 701228753Smmfile_to_archive(struct cpio *cpio, const char *srcpath) 702228753Smm{ 703228753Smm const char *destpath; 704228753Smm struct archive_entry *entry, *spare; 705228753Smm size_t len; 706228753Smm int r; 707228753Smm 708228753Smm /* 709228753Smm * Create an archive_entry describing the source file. 710228753Smm * 711228753Smm */ 712228753Smm entry = archive_entry_new(); 713228753Smm if (entry == NULL) 714228753Smm lafe_errc(1, 0, "Couldn't allocate entry"); 715228753Smm archive_entry_copy_sourcepath(entry, srcpath); 716228753Smm r = archive_read_disk_entry_from_file(cpio->archive_read_disk, 717228753Smm entry, -1, NULL); 718228753Smm if (r < ARCHIVE_FAILED) 719228753Smm lafe_errc(1, 0, "%s", 720228753Smm archive_error_string(cpio->archive_read_disk)); 721228753Smm if (r < ARCHIVE_OK) 722228753Smm lafe_warnc(0, "%s", 723228753Smm archive_error_string(cpio->archive_read_disk)); 724228753Smm if (r <= ARCHIVE_FAILED) { 725313570Smm archive_entry_free(entry); 726228753Smm cpio->return_value = 1; 727228753Smm return (r); 728228753Smm } 729228753Smm 730228777Smm if (cpio->uid_override >= 0) { 731228753Smm archive_entry_set_uid(entry, cpio->uid_override); 732228777Smm archive_entry_set_uname(entry, cpio->uname_override); 733228777Smm } 734228777Smm if (cpio->gid_override >= 0) { 735228753Smm archive_entry_set_gid(entry, cpio->gid_override); 736228777Smm archive_entry_set_gname(entry, cpio->gname_override); 737228777Smm } 738228753Smm 739228753Smm /* 740228753Smm * Generate a destination path for this entry. 741228753Smm * "destination path" is the name to which it will be copied in 742228753Smm * pass mode or the name that will go into the archive in 743228753Smm * output mode. 744228753Smm */ 745228753Smm destpath = srcpath; 746228753Smm if (cpio->destdir) { 747358926Smm len = cpio->destdir_len + strlen(srcpath) + 8; 748228753Smm if (len >= cpio->pass_destpath_alloc) { 749228753Smm while (len >= cpio->pass_destpath_alloc) { 750228753Smm cpio->pass_destpath_alloc += 512; 751228753Smm cpio->pass_destpath_alloc *= 2; 752228753Smm } 753228753Smm free(cpio->pass_destpath); 754228753Smm cpio->pass_destpath = malloc(cpio->pass_destpath_alloc); 755228753Smm if (cpio->pass_destpath == NULL) 756228753Smm lafe_errc(1, ENOMEM, 757228753Smm "Can't allocate path buffer"); 758228753Smm } 759228753Smm strcpy(cpio->pass_destpath, cpio->destdir); 760232153Smm strcat(cpio->pass_destpath, remove_leading_slash(srcpath)); 761228753Smm destpath = cpio->pass_destpath; 762228753Smm } 763228753Smm if (cpio->option_rename) 764228753Smm destpath = cpio_rename(destpath); 765342360Smm if (destpath == NULL) { 766342360Smm archive_entry_free(entry); 767228753Smm return (0); 768342360Smm } 769228753Smm archive_entry_copy_pathname(entry, destpath); 770228753Smm 771228753Smm /* 772228753Smm * If we're trying to preserve hardlinks, match them here. 773228753Smm */ 774228753Smm spare = NULL; 775228753Smm if (cpio->linkresolver != NULL 776228753Smm && archive_entry_filetype(entry) != AE_IFDIR) { 777228753Smm archive_entry_linkify(cpio->linkresolver, &entry, &spare); 778228753Smm } 779228753Smm 780228753Smm if (entry != NULL) { 781228753Smm r = entry_to_archive(cpio, entry); 782228753Smm archive_entry_free(entry); 783228753Smm if (spare != NULL) { 784228753Smm if (r == 0) 785228753Smm r = entry_to_archive(cpio, spare); 786228753Smm archive_entry_free(spare); 787228753Smm } 788228753Smm } 789228753Smm return (r); 790228753Smm} 791228753Smm 792228753Smmstatic int 793228753Smmentry_to_archive(struct cpio *cpio, struct archive_entry *entry) 794228753Smm{ 795228753Smm const char *destpath = archive_entry_pathname(entry); 796228753Smm const char *srcpath = archive_entry_sourcepath(entry); 797228753Smm int fd = -1; 798228753Smm ssize_t bytes_read; 799228753Smm int r; 800228753Smm 801228753Smm /* Print out the destination name to the user. */ 802228753Smm if (cpio->verbose) 803228753Smm fprintf(stderr,"%s", destpath); 804232153Smm if (cpio->dot) 805232153Smm fprintf(stderr, "."); 806228753Smm 807228753Smm /* 808228753Smm * Option_link only makes sense in pass mode and for 809228753Smm * regular files. Also note: if a link operation fails 810228753Smm * because of cross-device restrictions, we'll fall back 811228753Smm * to copy mode for that entry. 812228753Smm * 813228753Smm * TODO: Test other cpio implementations to see if they 814228753Smm * hard-link anything other than regular files here. 815228753Smm */ 816228753Smm if (cpio->option_link 817228753Smm && archive_entry_filetype(entry) == AE_IFREG) 818228753Smm { 819228753Smm struct archive_entry *t; 820228753Smm /* Save the original entry in case we need it later. */ 821228753Smm t = archive_entry_clone(entry); 822228753Smm if (t == NULL) 823228753Smm lafe_errc(1, ENOMEM, "Can't create link"); 824228753Smm /* Note: link(2) doesn't create parent directories, 825228753Smm * so we use archive_write_header() instead as a 826228753Smm * convenience. */ 827228753Smm archive_entry_set_hardlink(t, srcpath); 828228753Smm /* This is a straight link that carries no data. */ 829228753Smm archive_entry_set_size(t, 0); 830228753Smm r = archive_write_header(cpio->archive, t); 831228753Smm archive_entry_free(t); 832228753Smm if (r != ARCHIVE_OK) 833228753Smm lafe_warnc(archive_errno(cpio->archive), 834228753Smm "%s", archive_error_string(cpio->archive)); 835228753Smm if (r == ARCHIVE_FATAL) 836228753Smm exit(1); 837228753Smm#ifdef EXDEV 838228753Smm if (r != ARCHIVE_OK && archive_errno(cpio->archive) == EXDEV) { 839228753Smm /* Cross-device link: Just fall through and use 840228753Smm * the original entry to copy the file over. */ 841228753Smm lafe_warnc(0, "Copying file instead"); 842228753Smm } else 843228753Smm#endif 844228753Smm return (0); 845228753Smm } 846228753Smm 847228753Smm /* 848228753Smm * Make sure we can open the file (if necessary) before 849228753Smm * trying to write the header. 850228753Smm */ 851228753Smm if (archive_entry_filetype(entry) == AE_IFREG) { 852228753Smm if (archive_entry_size(entry) > 0) { 853228753Smm fd = open(srcpath, O_RDONLY | O_BINARY); 854228753Smm if (fd < 0) { 855228753Smm lafe_warnc(errno, 856228753Smm "%s: could not open file", srcpath); 857228753Smm goto cleanup; 858228753Smm } 859228753Smm } 860228753Smm } else { 861228753Smm archive_entry_set_size(entry, 0); 862228753Smm } 863228753Smm 864228753Smm r = archive_write_header(cpio->archive, entry); 865228753Smm 866228753Smm if (r != ARCHIVE_OK) 867228753Smm lafe_warnc(archive_errno(cpio->archive), 868228753Smm "%s: %s", 869228753Smm srcpath, 870228753Smm archive_error_string(cpio->archive)); 871228753Smm 872228753Smm if (r == ARCHIVE_FATAL) 873228753Smm exit(1); 874228753Smm 875232153Smm if (r >= ARCHIVE_WARN && archive_entry_size(entry) > 0 && fd >= 0) { 876248616Smm bytes_read = read(fd, cpio->buff, (unsigned)cpio->buff_size); 877228753Smm while (bytes_read > 0) { 878248616Smm ssize_t bytes_write; 879248616Smm bytes_write = archive_write_data(cpio->archive, 880228753Smm cpio->buff, bytes_read); 881248616Smm if (bytes_write < 0) 882228753Smm lafe_errc(1, archive_errno(cpio->archive), 883228753Smm "%s", archive_error_string(cpio->archive)); 884248616Smm if (bytes_write < bytes_read) { 885228753Smm lafe_warnc(0, 886248616Smm "Truncated write; file may have " 887248616Smm "grown while being archived."); 888228753Smm } 889248616Smm bytes_read = read(fd, cpio->buff, 890248616Smm (unsigned)cpio->buff_size); 891228753Smm } 892228753Smm } 893228753Smm 894228753Smm fd = restore_time(cpio, entry, srcpath, fd); 895228753Smm 896228753Smmcleanup: 897228753Smm if (cpio->verbose) 898228753Smm fprintf(stderr,"\n"); 899228753Smm if (fd >= 0) 900228753Smm close(fd); 901228753Smm return (0); 902228753Smm} 903228753Smm 904228753Smmstatic int 905228753Smmrestore_time(struct cpio *cpio, struct archive_entry *entry, 906228753Smm const char *name, int fd) 907228753Smm{ 908228753Smm#ifndef HAVE_UTIMES 909228753Smm static int warned = 0; 910228753Smm 911228753Smm (void)cpio; /* UNUSED */ 912228753Smm (void)entry; /* UNUSED */ 913228753Smm (void)name; /* UNUSED */ 914228753Smm 915228753Smm if (!warned) 916228753Smm lafe_warnc(0, "Can't restore access times on this platform"); 917228753Smm warned = 1; 918228753Smm return (fd); 919228753Smm#else 920228753Smm#if defined(_WIN32) && !defined(__CYGWIN__) 921228753Smm struct __timeval times[2]; 922228753Smm#else 923228753Smm struct timeval times[2]; 924228753Smm#endif 925228753Smm 926228753Smm if (!cpio->option_atime_restore) 927228753Smm return (fd); 928228753Smm 929228753Smm times[1].tv_sec = archive_entry_mtime(entry); 930228753Smm times[1].tv_usec = archive_entry_mtime_nsec(entry) / 1000; 931228753Smm 932228753Smm times[0].tv_sec = archive_entry_atime(entry); 933228753Smm times[0].tv_usec = archive_entry_atime_nsec(entry) / 1000; 934228753Smm 935228753Smm#if defined(HAVE_FUTIMES) && !defined(__CYGWIN__) 936228753Smm if (fd >= 0 && futimes(fd, times) == 0) 937228753Smm return (fd); 938228753Smm#endif 939228753Smm /* 940228753Smm * Some platform cannot restore access times if the file descriptor 941228753Smm * is still opened. 942228753Smm */ 943228753Smm if (fd >= 0) { 944228753Smm close(fd); 945228753Smm fd = -1; 946228753Smm } 947228753Smm 948228753Smm#ifdef HAVE_LUTIMES 949228753Smm if (lutimes(name, times) != 0) 950228753Smm#else 951228753Smm if ((AE_IFLNK != archive_entry_filetype(entry)) 952228753Smm && utimes(name, times) != 0) 953228753Smm#endif 954228753Smm lafe_warnc(errno, "Can't update time for %s", name); 955228753Smm#endif 956228753Smm return (fd); 957228753Smm} 958228753Smm 959228753Smm 960228753Smmstatic void 961228753Smmmode_in(struct cpio *cpio) 962228753Smm{ 963228753Smm struct archive *a; 964228753Smm struct archive_entry *entry; 965228753Smm struct archive *ext; 966228753Smm const char *destpath; 967228753Smm int r; 968228753Smm 969228753Smm ext = archive_write_disk_new(); 970228753Smm if (ext == NULL) 971228753Smm lafe_errc(1, 0, "Couldn't allocate restore object"); 972228753Smm r = archive_write_disk_set_options(ext, cpio->extract_flags); 973228753Smm if (r != ARCHIVE_OK) 974228753Smm lafe_errc(1, 0, "%s", archive_error_string(ext)); 975228753Smm a = archive_read_new(); 976228753Smm if (a == NULL) 977228753Smm lafe_errc(1, 0, "Couldn't allocate archive object"); 978232153Smm archive_read_support_filter_all(a); 979228753Smm archive_read_support_format_all(a); 980370535Sgit2svn if (cpio->option_pwb) 981370535Sgit2svn archive_read_set_options(a, "pwb"); 982299529Smm if (cpio->passphrase != NULL) 983299529Smm r = archive_read_add_passphrase(a, cpio->passphrase); 984299529Smm else 985299529Smm r = archive_read_set_passphrase_callback(a, cpio, 986299529Smm &passphrase_callback); 987299529Smm if (r != ARCHIVE_OK) 988299529Smm lafe_errc(1, 0, "%s", archive_error_string(a)); 989228753Smm 990248616Smm if (archive_read_open_filename(a, cpio->filename, 991248616Smm cpio->bytes_per_block)) 992228753Smm lafe_errc(1, archive_errno(a), 993228753Smm "%s", archive_error_string(a)); 994228753Smm for (;;) { 995228753Smm r = archive_read_next_header(a, &entry); 996228753Smm if (r == ARCHIVE_EOF) 997228753Smm break; 998228753Smm if (r != ARCHIVE_OK) { 999228753Smm lafe_errc(1, archive_errno(a), 1000228753Smm "%s", archive_error_string(a)); 1001228753Smm } 1002238856Smm if (archive_match_path_excluded(cpio->matching, entry)) 1003228753Smm continue; 1004228753Smm if (cpio->option_rename) { 1005228753Smm destpath = cpio_rename(archive_entry_pathname(entry)); 1006228753Smm archive_entry_set_pathname(entry, destpath); 1007228753Smm } else 1008228753Smm destpath = archive_entry_pathname(entry); 1009228753Smm if (destpath == NULL) 1010228753Smm continue; 1011228753Smm if (cpio->verbose) 1012232153Smm fprintf(stderr, "%s\n", destpath); 1013232153Smm if (cpio->dot) 1014232153Smm fprintf(stderr, "."); 1015228753Smm if (cpio->uid_override >= 0) 1016228753Smm archive_entry_set_uid(entry, cpio->uid_override); 1017228753Smm if (cpio->gid_override >= 0) 1018228753Smm archive_entry_set_gid(entry, cpio->gid_override); 1019228753Smm r = archive_write_header(ext, entry); 1020228753Smm if (r != ARCHIVE_OK) { 1021228753Smm fprintf(stderr, "%s: %s\n", 1022228753Smm archive_entry_pathname(entry), 1023228753Smm archive_error_string(ext)); 1024232153Smm } else if (!archive_entry_size_is_set(entry) 1025232153Smm || archive_entry_size(entry) > 0) { 1026228753Smm r = extract_data(a, ext); 1027228753Smm if (r != ARCHIVE_OK) 1028228753Smm cpio->return_value = 1; 1029228753Smm } 1030228753Smm } 1031228753Smm r = archive_read_close(a); 1032232153Smm if (cpio->dot) 1033232153Smm fprintf(stderr, "\n"); 1034228753Smm if (r != ARCHIVE_OK) 1035228753Smm lafe_errc(1, 0, "%s", archive_error_string(a)); 1036228753Smm r = archive_write_close(ext); 1037228753Smm if (r != ARCHIVE_OK) 1038228753Smm lafe_errc(1, 0, "%s", archive_error_string(ext)); 1039228753Smm if (!cpio->quiet) { 1040248616Smm int64_t blocks = (archive_filter_bytes(a, 0) + 511) 1041228753Smm / 512; 1042228753Smm fprintf(stderr, "%lu %s\n", (unsigned long)blocks, 1043228753Smm blocks == 1 ? "block" : "blocks"); 1044228753Smm } 1045232153Smm archive_read_free(a); 1046232153Smm archive_write_free(ext); 1047228753Smm exit(cpio->return_value); 1048228753Smm} 1049228753Smm 1050228753Smm/* 1051228753Smm * Exits if there's a fatal error. Returns ARCHIVE_OK 1052228753Smm * if everything is kosher. 1053228753Smm */ 1054228753Smmstatic int 1055228753Smmextract_data(struct archive *ar, struct archive *aw) 1056228753Smm{ 1057228753Smm int r; 1058228753Smm size_t size; 1059228753Smm const void *block; 1060232153Smm int64_t offset; 1061228753Smm 1062228753Smm for (;;) { 1063228753Smm r = archive_read_data_block(ar, &block, &size, &offset); 1064228753Smm if (r == ARCHIVE_EOF) 1065228753Smm return (ARCHIVE_OK); 1066228753Smm if (r != ARCHIVE_OK) { 1067228753Smm lafe_warnc(archive_errno(ar), 1068228753Smm "%s", archive_error_string(ar)); 1069228753Smm exit(1); 1070228753Smm } 1071248616Smm r = (int)archive_write_data_block(aw, block, size, offset); 1072228753Smm if (r != ARCHIVE_OK) { 1073228753Smm lafe_warnc(archive_errno(aw), 1074228753Smm "%s", archive_error_string(aw)); 1075228753Smm return (r); 1076228753Smm } 1077228753Smm } 1078228753Smm} 1079228753Smm 1080228753Smmstatic void 1081228753Smmmode_list(struct cpio *cpio) 1082228753Smm{ 1083228753Smm struct archive *a; 1084228753Smm struct archive_entry *entry; 1085228753Smm int r; 1086228753Smm 1087228753Smm a = archive_read_new(); 1088228753Smm if (a == NULL) 1089228753Smm lafe_errc(1, 0, "Couldn't allocate archive object"); 1090232153Smm archive_read_support_filter_all(a); 1091228753Smm archive_read_support_format_all(a); 1092370535Sgit2svn if (cpio->option_pwb) 1093370535Sgit2svn archive_read_set_options(a, "pwb"); 1094299529Smm if (cpio->passphrase != NULL) 1095299529Smm r = archive_read_add_passphrase(a, cpio->passphrase); 1096299529Smm else 1097299529Smm r = archive_read_set_passphrase_callback(a, cpio, 1098299529Smm &passphrase_callback); 1099299529Smm if (r != ARCHIVE_OK) 1100299529Smm lafe_errc(1, 0, "%s", archive_error_string(a)); 1101228753Smm 1102248616Smm if (archive_read_open_filename(a, cpio->filename, 1103248616Smm cpio->bytes_per_block)) 1104228753Smm lafe_errc(1, archive_errno(a), 1105228753Smm "%s", archive_error_string(a)); 1106228753Smm for (;;) { 1107228753Smm r = archive_read_next_header(a, &entry); 1108228753Smm if (r == ARCHIVE_EOF) 1109228753Smm break; 1110228753Smm if (r != ARCHIVE_OK) { 1111228753Smm lafe_errc(1, archive_errno(a), 1112228753Smm "%s", archive_error_string(a)); 1113228753Smm } 1114238856Smm if (archive_match_path_excluded(cpio->matching, entry)) 1115228753Smm continue; 1116228753Smm if (cpio->verbose) 1117228753Smm list_item_verbose(cpio, entry); 1118228753Smm else 1119228753Smm fprintf(stdout, "%s\n", archive_entry_pathname(entry)); 1120228753Smm } 1121228753Smm r = archive_read_close(a); 1122228753Smm if (r != ARCHIVE_OK) 1123228753Smm lafe_errc(1, 0, "%s", archive_error_string(a)); 1124228753Smm if (!cpio->quiet) { 1125248616Smm int64_t blocks = (archive_filter_bytes(a, 0) + 511) 1126228753Smm / 512; 1127228753Smm fprintf(stderr, "%lu %s\n", (unsigned long)blocks, 1128228753Smm blocks == 1 ? "block" : "blocks"); 1129228753Smm } 1130232153Smm archive_read_free(a); 1131228753Smm exit(0); 1132228753Smm} 1133228753Smm 1134228753Smm/* 1135228753Smm * Display information about the current file. 1136228753Smm * 1137228753Smm * The format here roughly duplicates the output of 'ls -l'. 1138228753Smm * This is based on SUSv2, where 'tar tv' is documented as 1139228753Smm * listing additional information in an "unspecified format," 1140228753Smm * and 'pax -l' is documented as using the same format as 'ls -l'. 1141228753Smm */ 1142228753Smmstatic void 1143228753Smmlist_item_verbose(struct cpio *cpio, struct archive_entry *entry) 1144228753Smm{ 1145228753Smm char size[32]; 1146228753Smm char date[32]; 1147228753Smm char uids[16], gids[16]; 1148228753Smm const char *uname, *gname; 1149228753Smm FILE *out = stdout; 1150228753Smm const char *fmt; 1151228753Smm time_t mtime; 1152228753Smm static time_t now; 1153358088Smm struct tm *ltime; 1154358088Smm#if defined(HAVE_LOCALTIME_R) || defined(HAVE__LOCALTIME64_S) 1155358088Smm struct tm tmbuf; 1156358088Smm#endif 1157358088Smm#if defined(HAVE__LOCALTIME64_S) 1158358088Smm errno_t terr; 1159358088Smm __time64_t tmptime; 1160358088Smm#endif 1161228753Smm 1162228753Smm if (!now) 1163228753Smm time(&now); 1164228753Smm 1165228753Smm if (cpio->option_numeric_uid_gid) { 1166228753Smm /* Format numeric uid/gid for display. */ 1167228753Smm strcpy(uids, cpio_i64toa(archive_entry_uid(entry))); 1168228753Smm uname = uids; 1169228753Smm strcpy(gids, cpio_i64toa(archive_entry_gid(entry))); 1170228753Smm gname = gids; 1171228753Smm } else { 1172228753Smm /* Use uname if it's present, else lookup name from uid. */ 1173228753Smm uname = archive_entry_uname(entry); 1174228753Smm if (uname == NULL) 1175232153Smm uname = lookup_uname(cpio, (uid_t)archive_entry_uid(entry)); 1176228753Smm /* Use gname if it's present, else lookup name from gid. */ 1177228753Smm gname = archive_entry_gname(entry); 1178228753Smm if (gname == NULL) 1179232153Smm gname = lookup_gname(cpio, (uid_t)archive_entry_gid(entry)); 1180228753Smm } 1181228753Smm 1182228753Smm /* Print device number or file size. */ 1183228753Smm if (archive_entry_filetype(entry) == AE_IFCHR 1184228753Smm || archive_entry_filetype(entry) == AE_IFBLK) { 1185228753Smm snprintf(size, sizeof(size), "%lu,%lu", 1186228753Smm (unsigned long)archive_entry_rdevmajor(entry), 1187228753Smm (unsigned long)archive_entry_rdevminor(entry)); 1188228753Smm } else { 1189228753Smm strcpy(size, cpio_i64toa(archive_entry_size(entry))); 1190228753Smm } 1191228753Smm 1192228753Smm /* Format the time using 'ls -l' conventions. */ 1193228753Smm mtime = archive_entry_mtime(entry); 1194228753Smm#if defined(_WIN32) && !defined(__CYGWIN__) 1195228753Smm /* Windows' strftime function does not support %e format. */ 1196228753Smm if (mtime - now > 365*86400/2 1197228753Smm || mtime - now < -365*86400/2) 1198228753Smm fmt = cpio->day_first ? "%d %b %Y" : "%b %d %Y"; 1199228753Smm else 1200228753Smm fmt = cpio->day_first ? "%d %b %H:%M" : "%b %d %H:%M"; 1201228753Smm#else 1202274846Sdim if (mtime - now > 365*86400/2 1203274846Sdim || mtime - now < -365*86400/2) 1204228753Smm fmt = cpio->day_first ? "%e %b %Y" : "%b %e %Y"; 1205228753Smm else 1206228753Smm fmt = cpio->day_first ? "%e %b %H:%M" : "%b %e %H:%M"; 1207228753Smm#endif 1208358088Smm#if defined(HAVE_LOCALTIME_R) 1209358088Smm ltime = localtime_r(&mtime, &tmbuf); 1210358088Smm#elif defined(HAVE__LOCALTIME64_S) 1211358088Smm tmptime = mtime; 1212358088Smm terr = _localtime64_s(&tmbuf, &tmptime); 1213358088Smm if (terr) 1214358088Smm ltime = NULL; 1215358088Smm else 1216358088Smm ltime = &tmbuf; 1217358088Smm#else 1218358088Smm ltime = localtime(&mtime); 1219358088Smm#endif 1220358088Smm strftime(date, sizeof(date), fmt, ltime); 1221228753Smm 1222228753Smm fprintf(out, "%s%3d %-8s %-8s %8s %12s %s", 1223228753Smm archive_entry_strmode(entry), 1224228753Smm archive_entry_nlink(entry), 1225228753Smm uname, gname, size, date, 1226228753Smm archive_entry_pathname(entry)); 1227228753Smm 1228228753Smm /* Extra information for links. */ 1229228753Smm if (archive_entry_hardlink(entry)) /* Hard link */ 1230228753Smm fprintf(out, " link to %s", archive_entry_hardlink(entry)); 1231228753Smm else if (archive_entry_symlink(entry)) /* Symbolic link */ 1232228753Smm fprintf(out, " -> %s", archive_entry_symlink(entry)); 1233228753Smm fprintf(out, "\n"); 1234228753Smm} 1235228753Smm 1236228753Smmstatic void 1237228753Smmmode_pass(struct cpio *cpio, const char *destdir) 1238228753Smm{ 1239228753Smm struct lafe_line_reader *lr; 1240228753Smm const char *p; 1241228753Smm int r; 1242228753Smm 1243228753Smm /* Ensure target dir has a trailing '/' to simplify path surgery. */ 1244358926Smm cpio->destdir_len = strlen(destdir); 1245358926Smm cpio->destdir = malloc(cpio->destdir_len + 8); 1246358926Smm memcpy(cpio->destdir, destdir, cpio->destdir_len); 1247358926Smm if (cpio->destdir_len == 0 || destdir[cpio->destdir_len - 1] != '/') 1248358926Smm cpio->destdir[cpio->destdir_len++] = '/'; 1249358926Smm cpio->destdir[cpio->destdir_len] = '\0'; 1250228753Smm 1251228753Smm cpio->archive = archive_write_disk_new(); 1252228753Smm if (cpio->archive == NULL) 1253228753Smm lafe_errc(1, 0, "Failed to allocate archive object"); 1254228753Smm r = archive_write_disk_set_options(cpio->archive, cpio->extract_flags); 1255228753Smm if (r != ARCHIVE_OK) 1256228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 1257228753Smm cpio->linkresolver = archive_entry_linkresolver_new(); 1258228753Smm archive_write_disk_set_standard_lookup(cpio->archive); 1259228753Smm 1260228753Smm cpio->archive_read_disk = archive_read_disk_new(); 1261228753Smm if (cpio->archive_read_disk == NULL) 1262228753Smm lafe_errc(1, 0, "Failed to allocate archive object"); 1263228753Smm if (cpio->option_follow_links) 1264228753Smm archive_read_disk_set_symlink_logical(cpio->archive_read_disk); 1265228753Smm else 1266228753Smm archive_read_disk_set_symlink_physical(cpio->archive_read_disk); 1267228753Smm archive_read_disk_set_standard_lookup(cpio->archive_read_disk); 1268228753Smm 1269228753Smm lr = lafe_line_reader("-", cpio->option_null); 1270228753Smm while ((p = lafe_line_reader_next(lr)) != NULL) 1271228753Smm file_to_archive(cpio, p); 1272228753Smm lafe_line_reader_free(lr); 1273228753Smm 1274228753Smm archive_entry_linkresolver_free(cpio->linkresolver); 1275228753Smm r = archive_write_close(cpio->archive); 1276232153Smm if (cpio->dot) 1277232153Smm fprintf(stderr, "\n"); 1278228753Smm if (r != ARCHIVE_OK) 1279228753Smm lafe_errc(1, 0, "%s", archive_error_string(cpio->archive)); 1280228753Smm 1281228753Smm if (!cpio->quiet) { 1282228753Smm int64_t blocks = 1283248616Smm (archive_filter_bytes(cpio->archive, 0) + 511) 1284228753Smm / 512; 1285228753Smm fprintf(stderr, "%lu %s\n", (unsigned long)blocks, 1286228753Smm blocks == 1 ? "block" : "blocks"); 1287228753Smm } 1288228753Smm 1289232153Smm archive_write_free(cpio->archive); 1290318482Smm free(cpio->pass_destpath); 1291228753Smm} 1292228753Smm 1293228753Smm/* 1294228753Smm * Prompt for a new name for this entry. Returns a pointer to the 1295228753Smm * new name or NULL if the entry should not be copied. This 1296228753Smm * implements the semantics defined in POSIX.1-1996, which specifies 1297228753Smm * that an input of '.' means the name should be unchanged. GNU cpio 1298228753Smm * treats '.' as a literal new name. 1299228753Smm */ 1300228753Smmstatic const char * 1301228753Smmcpio_rename(const char *name) 1302228753Smm{ 1303228753Smm static char buff[1024]; 1304228753Smm FILE *t; 1305228753Smm char *p, *ret; 1306232153Smm#if defined(_WIN32) && !defined(__CYGWIN__) 1307232153Smm FILE *to; 1308228753Smm 1309232153Smm t = fopen("CONIN$", "r"); 1310232153Smm if (t == NULL) 1311232153Smm return (name); 1312232153Smm to = fopen("CONOUT$", "w"); 1313299529Smm if (to == NULL) { 1314299529Smm fclose(t); 1315232153Smm return (name); 1316299529Smm } 1317232153Smm fprintf(to, "%s (Enter/./(new name))? ", name); 1318232153Smm fclose(to); 1319232153Smm#else 1320228753Smm t = fopen("/dev/tty", "r+"); 1321228753Smm if (t == NULL) 1322228753Smm return (name); 1323228753Smm fprintf(t, "%s (Enter/./(new name))? ", name); 1324228753Smm fflush(t); 1325232153Smm#endif 1326228753Smm 1327228753Smm p = fgets(buff, sizeof(buff), t); 1328228753Smm fclose(t); 1329228753Smm if (p == NULL) 1330228753Smm /* End-of-file is a blank line. */ 1331228753Smm return (NULL); 1332228753Smm 1333228753Smm while (*p == ' ' || *p == '\t') 1334228753Smm ++p; 1335228753Smm if (*p == '\n' || *p == '\0') 1336228753Smm /* Empty line. */ 1337228753Smm return (NULL); 1338228753Smm if (*p == '.' && p[1] == '\n') 1339228753Smm /* Single period preserves original name. */ 1340228753Smm return (name); 1341228753Smm ret = p; 1342228753Smm /* Trim the final newline. */ 1343228753Smm while (*p != '\0' && *p != '\n') 1344228753Smm ++p; 1345228753Smm /* Overwrite the final \n with a null character. */ 1346228753Smm *p = '\0'; 1347228753Smm return (ret); 1348228753Smm} 1349228753Smm 1350228753Smmstatic void 1351228753Smmfree_cache(struct name_cache *cache) 1352228753Smm{ 1353228753Smm size_t i; 1354228753Smm 1355228753Smm if (cache != NULL) { 1356228753Smm for (i = 0; i < cache->size; i++) 1357228753Smm free(cache->cache[i].name); 1358228753Smm free(cache); 1359228753Smm } 1360228753Smm} 1361228753Smm 1362228753Smm/* 1363228753Smm * Lookup uname/gname from uid/gid, return NULL if no match. 1364228753Smm */ 1365228753Smmstatic const char * 1366228753Smmlookup_name(struct cpio *cpio, struct name_cache **name_cache_variable, 1367228753Smm int (*lookup_fn)(struct cpio *, const char **, id_t), id_t id) 1368228753Smm{ 1369228753Smm char asnum[16]; 1370228753Smm struct name_cache *cache; 1371228753Smm const char *name; 1372228753Smm int slot; 1373228753Smm 1374228753Smm 1375228753Smm if (*name_cache_variable == NULL) { 1376311041Smm *name_cache_variable = calloc(1, sizeof(struct name_cache)); 1377228753Smm if (*name_cache_variable == NULL) 1378228753Smm lafe_errc(1, ENOMEM, "No more memory"); 1379228753Smm (*name_cache_variable)->size = name_cache_size; 1380228753Smm } 1381228753Smm 1382228753Smm cache = *name_cache_variable; 1383228753Smm cache->probes++; 1384228753Smm 1385228753Smm slot = id % cache->size; 1386228753Smm if (cache->cache[slot].name != NULL) { 1387228753Smm if (cache->cache[slot].id == id) { 1388228753Smm cache->hits++; 1389228753Smm return (cache->cache[slot].name); 1390228753Smm } 1391228753Smm free(cache->cache[slot].name); 1392228753Smm cache->cache[slot].name = NULL; 1393228753Smm } 1394228753Smm 1395316337Smm if (lookup_fn(cpio, &name, id)) { 1396316337Smm /* If lookup failed, format it as a number. */ 1397316337Smm snprintf(asnum, sizeof(asnum), "%u", (unsigned)id); 1398316337Smm name = asnum; 1399228753Smm } 1400316337Smm 1401316337Smm cache->cache[slot].name = strdup(name); 1402316337Smm if (cache->cache[slot].name != NULL) { 1403316337Smm cache->cache[slot].id = id; 1404316337Smm return (cache->cache[slot].name); 1405316337Smm } 1406316337Smm 1407316337Smm /* 1408316337Smm * Conveniently, NULL marks an empty slot, so 1409316337Smm * if the strdup() fails, we've just failed to 1410316337Smm * cache it. No recovery necessary. 1411316337Smm */ 1412228753Smm return (NULL); 1413228753Smm} 1414228753Smm 1415228753Smmstatic const char * 1416228753Smmlookup_uname(struct cpio *cpio, uid_t uid) 1417228753Smm{ 1418228753Smm return (lookup_name(cpio, &cpio->uname_cache, 1419228753Smm &lookup_uname_helper, (id_t)uid)); 1420228753Smm} 1421228753Smm 1422228753Smmstatic int 1423228753Smmlookup_uname_helper(struct cpio *cpio, const char **name, id_t id) 1424228753Smm{ 1425228753Smm struct passwd *pwent; 1426228753Smm 1427228753Smm (void)cpio; /* UNUSED */ 1428228753Smm 1429228753Smm errno = 0; 1430228753Smm pwent = getpwuid((uid_t)id); 1431228753Smm if (pwent == NULL) { 1432316337Smm if (errno && errno != ENOENT) 1433238856Smm lafe_warnc(errno, "getpwuid(%s) failed", 1434238856Smm cpio_i64toa((int64_t)id)); 1435316337Smm return 1; 1436228753Smm } 1437228753Smm 1438228753Smm *name = pwent->pw_name; 1439316337Smm return 0; 1440228753Smm} 1441228753Smm 1442228753Smmstatic const char * 1443228753Smmlookup_gname(struct cpio *cpio, gid_t gid) 1444228753Smm{ 1445228753Smm return (lookup_name(cpio, &cpio->gname_cache, 1446228753Smm &lookup_gname_helper, (id_t)gid)); 1447228753Smm} 1448228753Smm 1449228753Smmstatic int 1450228753Smmlookup_gname_helper(struct cpio *cpio, const char **name, id_t id) 1451228753Smm{ 1452228753Smm struct group *grent; 1453228753Smm 1454228753Smm (void)cpio; /* UNUSED */ 1455228753Smm 1456228753Smm errno = 0; 1457228753Smm grent = getgrgid((gid_t)id); 1458228753Smm if (grent == NULL) { 1459316337Smm if (errno && errno != ENOENT) 1460238856Smm lafe_warnc(errno, "getgrgid(%s) failed", 1461238856Smm cpio_i64toa((int64_t)id)); 1462316337Smm return 1; 1463228753Smm } 1464228753Smm 1465228753Smm *name = grent->gr_name; 1466316337Smm return 0; 1467228753Smm} 1468228753Smm 1469228753Smm/* 1470228753Smm * It would be nice to just use printf() for formatting large numbers, 1471228753Smm * but the compatibility problems are a big headache. Hence the 1472228753Smm * following simple utility function. 1473228753Smm */ 1474228753Smmconst char * 1475228753Smmcpio_i64toa(int64_t n0) 1476228753Smm{ 1477232153Smm /* 2^64 =~ 1.8 * 10^19, so 20 decimal digits suffice. 1478232153Smm * We also need 1 byte for '-' and 1 for '\0'. 1479232153Smm */ 1480228753Smm static char buff[22]; 1481228753Smm int64_t n = n0 < 0 ? -n0 : n0; 1482228753Smm char *p = buff + sizeof(buff); 1483228753Smm 1484228753Smm *--p = '\0'; 1485228753Smm do { 1486228753Smm *--p = '0' + (int)(n % 10); 1487228753Smm n /= 10; 1488228753Smm } while (n > 0); 1489228753Smm if (n0 < 0) 1490228753Smm *--p = '-'; 1491228753Smm return p; 1492228753Smm} 1493299529Smm 1494299529Smm#define PPBUFF_SIZE 1024 1495299529Smmstatic const char * 1496299529Smmpassphrase_callback(struct archive *a, void *_client_data) 1497299529Smm{ 1498299529Smm struct cpio *cpio = (struct cpio *)_client_data; 1499299529Smm (void)a; /* UNUSED */ 1500299529Smm 1501299529Smm if (cpio->ppbuff == NULL) { 1502299529Smm cpio->ppbuff = malloc(PPBUFF_SIZE); 1503299529Smm if (cpio->ppbuff == NULL) 1504299529Smm lafe_errc(1, errno, "Out of memory"); 1505299529Smm } 1506299529Smm return lafe_readpassphrase("Enter passphrase:", 1507299529Smm cpio->ppbuff, PPBUFF_SIZE); 1508299529Smm} 1509299529Smm 1510299529Smmstatic void 1511299529Smmpassphrase_free(char *ppbuff) 1512299529Smm{ 1513299529Smm if (ppbuff != NULL) { 1514299529Smm memset(ppbuff, 0, PPBUFF_SIZE); 1515299529Smm free(ppbuff); 1516299529Smm } 1517299529Smm} 1518