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-rw-r--r--usr.bin/cpio/cpio.c1277
1 files changed, 0 insertions, 1277 deletions
diff --git a/usr.bin/cpio/cpio.c b/usr.bin/cpio/cpio.c
deleted file mode 100644
index cd81050..0000000
--- a/usr.bin/cpio/cpio.c
+++ /dev/null
@@ -1,1277 +0,0 @@
-/*-
- * Copyright (c) 2003-2007 Tim Kientzle
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer
- * in this position and unchanged.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-
-#include "cpio_platform.h"
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <archive.h>
-#include <archive_entry.h>
-
-#ifdef HAVE_SYS_MKDEV_H
-#include <sys/mkdev.h>
-#endif
-#ifdef HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-#ifdef HAVE_GRP_H
-#include <grp.h>
-#endif
-#ifdef HAVE_PWD_H
-#include <pwd.h>
-#endif
-#ifdef HAVE_STDARG_H
-#include <stdarg.h>
-#endif
-#ifdef HAVE_STDINT_H
-#include <stdint.h>
-#endif
-#include <stdio.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#ifdef HAVE_TIME_H
-#include <time.h>
-#endif
-
-#include "cpio.h"
-#include "err.h"
-#include "line_reader.h"
-#include "matching.h"
-
-/* Fixed size of uname/gname caches. */
-#define name_cache_size 101
-
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif
-
-struct name_cache {
- int probes;
- int hits;
- size_t size;
- struct {
- id_t id;
- char *name;
- } cache[name_cache_size];
-};
-
-static int extract_data(struct archive *, struct archive *);
-const char * cpio_i64toa(int64_t);
-static const char *cpio_rename(const char *name);
-static int entry_to_archive(struct cpio *, struct archive_entry *);
-static int file_to_archive(struct cpio *, const char *);
-static void free_cache(struct name_cache *cache);
-static void list_item_verbose(struct cpio *, struct archive_entry *);
-static void long_help(void);
-static const char *lookup_gname(struct cpio *, gid_t gid);
-static int lookup_gname_helper(struct cpio *,
- const char **name, id_t gid);
-static const char *lookup_uname(struct cpio *, uid_t uid);
-static int lookup_uname_helper(struct cpio *,
- const char **name, id_t uid);
-static void mode_in(struct cpio *);
-static void mode_list(struct cpio *);
-static void mode_out(struct cpio *);
-static void mode_pass(struct cpio *, const char *);
-static int restore_time(struct cpio *, struct archive_entry *,
- const char *, int fd);
-static void usage(void);
-static void version(void);
-
-int
-main(int argc, char *argv[])
-{
- static char buff[16384];
- struct cpio _cpio; /* Allocated on stack. */
- struct cpio *cpio;
- const char *errmsg;
- int uid, gid;
- int opt;
-
- cpio = &_cpio;
- memset(cpio, 0, sizeof(*cpio));
- cpio->buff = buff;
- cpio->buff_size = sizeof(buff);
-
- /* Need lafe_progname before calling lafe_warnc. */
- if (*argv == NULL)
- lafe_progname = "bsdcpio";
- else {
-#if defined(_WIN32) && !defined(__CYGWIN__)
- lafe_progname = strrchr(*argv, '\\');
-#else
- lafe_progname = strrchr(*argv, '/');
-#endif
- if (lafe_progname != NULL)
- lafe_progname++;
- else
- lafe_progname = *argv;
- }
-
- cpio->uid_override = -1;
- cpio->gid_override = -1;
- cpio->argv = argv;
- cpio->argc = argc;
- cpio->mode = '\0';
- cpio->verbose = 0;
- cpio->compress = '\0';
- cpio->extract_flags = ARCHIVE_EXTRACT_NO_AUTODIR;
- cpio->extract_flags |= ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER;
- cpio->extract_flags |= ARCHIVE_EXTRACT_SECURE_SYMLINKS;
- cpio->extract_flags |= ARCHIVE_EXTRACT_SECURE_NODOTDOT;
- cpio->extract_flags |= ARCHIVE_EXTRACT_PERM;
- cpio->extract_flags |= ARCHIVE_EXTRACT_FFLAGS;
- cpio->extract_flags |= ARCHIVE_EXTRACT_ACL;
-#if !defined(_WIN32) && !defined(__CYGWIN__)
- if (geteuid() == 0)
- cpio->extract_flags |= ARCHIVE_EXTRACT_OWNER;
-#endif
- cpio->bytes_per_block = 512;
- cpio->filename = NULL;
-
- while ((opt = cpio_getopt(cpio)) != -1) {
- switch (opt) {
- case '0': /* GNU convention: --null, -0 */
- cpio->option_null = 1;
- break;
- case 'A': /* NetBSD/OpenBSD */
- cpio->option_append = 1;
- break;
- case 'a': /* POSIX 1997 */
- cpio->option_atime_restore = 1;
- break;
- case 'B': /* POSIX 1997 */
- cpio->bytes_per_block = 5120;
- break;
- case 'C': /* NetBSD/OpenBSD */
- cpio->bytes_per_block = atoi(cpio->optarg);
- if (cpio->bytes_per_block <= 0)
- lafe_errc(1, 0, "Invalid blocksize %s", cpio->optarg);
- break;
- case 'c': /* POSIX 1997 */
- cpio->format = "odc";
- break;
- case 'd': /* POSIX 1997 */
- cpio->extract_flags &= ~ARCHIVE_EXTRACT_NO_AUTODIR;
- break;
- case 'E': /* NetBSD/OpenBSD */
- lafe_include_from_file(&cpio->matching,
- cpio->optarg, cpio->option_null);
- break;
- case 'F': /* NetBSD/OpenBSD/GNU cpio */
- cpio->filename = cpio->optarg;
- break;
- case 'f': /* POSIX 1997 */
- lafe_exclude(&cpio->matching, cpio->optarg);
- break;
- case 'H': /* GNU cpio (also --format) */
- cpio->format = cpio->optarg;
- break;
- case 'h':
- long_help();
- break;
- case 'I': /* NetBSD/OpenBSD */
- cpio->filename = cpio->optarg;
- break;
- case 'i': /* POSIX 1997 */
- if (cpio->mode != '\0')
- lafe_errc(1, 0,
- "Cannot use both -i and -%c", cpio->mode);
- cpio->mode = opt;
- break;
- case 'J': /* GNU tar, others */
- cpio->compress = opt;
- break;
- case 'j': /* GNU tar, others */
- cpio->compress = opt;
- break;
- case OPTION_INSECURE:
- cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_SYMLINKS;
- cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NODOTDOT;
- break;
- case 'L': /* GNU cpio */
- cpio->option_follow_links = 1;
- break;
- case 'l': /* POSIX 1997 */
- cpio->option_link = 1;
- break;
- case OPTION_LZMA: /* GNU tar, others */
- cpio->compress = opt;
- break;
- case 'm': /* POSIX 1997 */
- cpio->extract_flags |= ARCHIVE_EXTRACT_TIME;
- break;
- case 'n': /* GNU cpio */
- cpio->option_numeric_uid_gid = 1;
- break;
- case OPTION_NO_PRESERVE_OWNER: /* GNU cpio */
- cpio->extract_flags &= ~ARCHIVE_EXTRACT_OWNER;
- break;
- case 'O': /* GNU cpio */
- cpio->filename = cpio->optarg;
- break;
- case 'o': /* POSIX 1997 */
- if (cpio->mode != '\0')
- lafe_errc(1, 0,
- "Cannot use both -o and -%c", cpio->mode);
- cpio->mode = opt;
- break;
- case 'p': /* POSIX 1997 */
- if (cpio->mode != '\0')
- lafe_errc(1, 0,
- "Cannot use both -p and -%c", cpio->mode);
- cpio->mode = opt;
- cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NODOTDOT;
- break;
- case OPTION_PRESERVE_OWNER:
- cpio->extract_flags |= ARCHIVE_EXTRACT_OWNER;
- break;
- case OPTION_QUIET: /* GNU cpio */
- cpio->quiet = 1;
- break;
- case 'R': /* GNU cpio, also --owner */
- /* TODO: owner_parse should return uname/gname
- * also; use that to set [ug]name_override. */
- errmsg = owner_parse(cpio->optarg, &uid, &gid);
- if (errmsg) {
- lafe_warnc(-1, "%s", errmsg);
- usage();
- }
- if (uid != -1) {
- cpio->uid_override = uid;
- cpio->uname_override = NULL;
- }
- if (gid != -1) {
- cpio->gid_override = gid;
- cpio->gname_override = NULL;
- }
- break;
- case 'r': /* POSIX 1997 */
- cpio->option_rename = 1;
- break;
- case 't': /* POSIX 1997 */
- cpio->option_list = 1;
- break;
- case 'u': /* POSIX 1997 */
- cpio->extract_flags
- &= ~ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER;
- break;
- case 'v': /* POSIX 1997 */
- cpio->verbose++;
- break;
- case OPTION_VERSION: /* GNU convention */
- version();
- break;
-#if 0
- /*
- * cpio_getopt() handles -W specially, so it's not
- * available here.
- */
- case 'W': /* Obscure, but useful GNU convention. */
- break;
-#endif
- case 'y': /* tar convention */
- cpio->compress = opt;
- break;
- case 'Z': /* tar convention */
- cpio->compress = opt;
- break;
- case 'z': /* tar convention */
- cpio->compress = opt;
- break;
- default:
- usage();
- }
- }
-
- /*
- * Sanity-check args, error out on nonsensical combinations.
- */
- /* -t implies -i if no mode was specified. */
- if (cpio->option_list && cpio->mode == '\0')
- cpio->mode = 'i';
- /* -t requires -i */
- if (cpio->option_list && cpio->mode != 'i')
- lafe_errc(1, 0, "Option -t requires -i");
- /* -n requires -it */
- if (cpio->option_numeric_uid_gid && !cpio->option_list)
- lafe_errc(1, 0, "Option -n requires -it");
- /* Can only specify format when writing */
- if (cpio->format != NULL && cpio->mode != 'o')
- lafe_errc(1, 0, "Option --format requires -o");
- /* -l requires -p */
- if (cpio->option_link && cpio->mode != 'p')
- lafe_errc(1, 0, "Option -l requires -p");
- /* TODO: Flag other nonsensical combinations. */
-
- switch (cpio->mode) {
- case 'o':
- /* TODO: Implement old binary format in libarchive,
- use that here. */
- if (cpio->format == NULL)
- cpio->format = "odc"; /* Default format */
-
- mode_out(cpio);
- break;
- case 'i':
- while (*cpio->argv != NULL) {
- lafe_include(&cpio->matching, *cpio->argv);
- --cpio->argc;
- ++cpio->argv;
- }
- if (cpio->option_list)
- mode_list(cpio);
- else
- mode_in(cpio);
- break;
- case 'p':
- if (*cpio->argv == NULL || **cpio->argv == '\0')
- lafe_errc(1, 0,
- "-p mode requires a target directory");
- mode_pass(cpio, *cpio->argv);
- break;
- default:
- lafe_errc(1, 0,
- "Must specify at least one of -i, -o, or -p");
- }
-
- free_cache(cpio->gname_cache);
- free_cache(cpio->uname_cache);
- return (cpio->return_value);
-}
-
-static void
-usage(void)
-{
- const char *p;
-
- p = lafe_progname;
-
- fprintf(stderr, "Brief Usage:\n");
- fprintf(stderr, " List: %s -it < archive\n", p);
- fprintf(stderr, " Extract: %s -i < archive\n", p);
- fprintf(stderr, " Create: %s -o < filenames > archive\n", p);
- fprintf(stderr, " Help: %s --help\n", p);
- exit(1);
-}
-
-static const char *long_help_msg =
- "First option must be a mode specifier:\n"
- " -i Input -o Output -p Pass\n"
- "Common Options:\n"
- " -v Verbose\n"
- "Create: %p -o [options] < [list of files] > [archive]\n"
- " -J,-y,-z,--lzma Compress archive with xz/bzip2/gzip/lzma\n"
- " --format {odc|newc|ustar} Select archive format\n"
- "List: %p -it < [archive]\n"
- "Extract: %p -i [options] < [archive]\n";
-
-
-/*
- * Note that the word 'bsdcpio' will always appear in the first line
- * of output.
- *
- * In particular, /bin/sh scripts that need to test for the presence
- * of bsdcpio can use the following template:
- *
- * if (cpio --help 2>&1 | grep bsdcpio >/dev/null 2>&1 ) then \
- * echo bsdcpio; else echo not bsdcpio; fi
- */
-static void
-long_help(void)
-{
- const char *prog;
- const char *p;
-
- prog = lafe_progname;
-
- fflush(stderr);
-
- p = (strcmp(prog,"bsdcpio") != 0) ? "(bsdcpio)" : "";
- printf("%s%s: manipulate archive files\n", prog, p);
-
- for (p = long_help_msg; *p != '\0'; p++) {
- if (*p == '%') {
- if (p[1] == 'p') {
- fputs(prog, stdout);
- p++;
- } else
- putchar('%');
- } else
- putchar(*p);
- }
- version();
-}
-
-static void
-version(void)
-{
- fprintf(stdout,"bsdcpio %s -- %s\n",
- BSDCPIO_VERSION_STRING,
- archive_version());
- exit(0);
-}
-
-static void
-mode_out(struct cpio *cpio)
-{
- struct archive_entry *entry, *spare;
- struct lafe_line_reader *lr;
- const char *p;
- int r;
-
- if (cpio->option_append)
- lafe_errc(1, 0, "Append mode not yet supported.");
-
- cpio->archive_read_disk = archive_read_disk_new();
- if (cpio->archive_read_disk == NULL)
- lafe_errc(1, 0, "Failed to allocate archive object");
- if (cpio->option_follow_links)
- archive_read_disk_set_symlink_logical(cpio->archive_read_disk);
- else
- archive_read_disk_set_symlink_physical(cpio->archive_read_disk);
- archive_read_disk_set_standard_lookup(cpio->archive_read_disk);
-
- cpio->archive = archive_write_new();
- if (cpio->archive == NULL)
- lafe_errc(1, 0, "Failed to allocate archive object");
- switch (cpio->compress) {
- case 'J':
- r = archive_write_set_compression_xz(cpio->archive);
- break;
- case OPTION_LZMA:
- r = archive_write_set_compression_lzma(cpio->archive);
- break;
- case 'j': case 'y':
- r = archive_write_set_compression_bzip2(cpio->archive);
- break;
- case 'z':
- r = archive_write_set_compression_gzip(cpio->archive);
- break;
- case 'Z':
- r = archive_write_set_compression_compress(cpio->archive);
- break;
- default:
- r = archive_write_set_compression_none(cpio->archive);
- break;
- }
- if (r < ARCHIVE_WARN)
- lafe_errc(1, 0, "Requested compression not available");
- r = archive_write_set_format_by_name(cpio->archive, cpio->format);
- if (r != ARCHIVE_OK)
- lafe_errc(1, 0, "%s", archive_error_string(cpio->archive));
- archive_write_set_bytes_per_block(cpio->archive, cpio->bytes_per_block);
- cpio->linkresolver = archive_entry_linkresolver_new();
- archive_entry_linkresolver_set_strategy(cpio->linkresolver,
- archive_format(cpio->archive));
-
- /*
- * The main loop: Copy each file into the output archive.
- */
- r = archive_write_open_file(cpio->archive, cpio->filename);
- if (r != ARCHIVE_OK)
- lafe_errc(1, 0, "%s", archive_error_string(cpio->archive));
- lr = lafe_line_reader("-", cpio->option_null);
- while ((p = lafe_line_reader_next(lr)) != NULL)
- file_to_archive(cpio, p);
- lafe_line_reader_free(lr);
-
- /*
- * The hardlink detection may have queued up a couple of entries
- * that can now be flushed.
- */
- entry = NULL;
- archive_entry_linkify(cpio->linkresolver, &entry, &spare);
- while (entry != NULL) {
- entry_to_archive(cpio, entry);
- archive_entry_free(entry);
- entry = NULL;
- archive_entry_linkify(cpio->linkresolver, &entry, &spare);
- }
-
- r = archive_write_close(cpio->archive);
- if (r != ARCHIVE_OK)
- lafe_errc(1, 0, "%s", archive_error_string(cpio->archive));
-
- if (!cpio->quiet) {
- int64_t blocks =
- (archive_position_uncompressed(cpio->archive) + 511)
- / 512;
- fprintf(stderr, "%lu %s\n", (unsigned long)blocks,
- blocks == 1 ? "block" : "blocks");
- }
- archive_write_finish(cpio->archive);
-}
-
-/*
- * This is used by both out mode (to copy objects from disk into
- * an archive) and pass mode (to copy objects from disk to
- * an archive_write_disk "archive").
- */
-static int
-file_to_archive(struct cpio *cpio, const char *srcpath)
-{
- const char *destpath;
- struct archive_entry *entry, *spare;
- size_t len;
- const char *p;
- int r;
-
- /*
- * Create an archive_entry describing the source file.
- *
- */
- entry = archive_entry_new();
- if (entry == NULL)
- lafe_errc(1, 0, "Couldn't allocate entry");
- archive_entry_copy_sourcepath(entry, srcpath);
- r = archive_read_disk_entry_from_file(cpio->archive_read_disk,
- entry, -1, NULL);
- if (r < ARCHIVE_FAILED)
- lafe_errc(1, 0, "%s",
- archive_error_string(cpio->archive_read_disk));
- if (r < ARCHIVE_OK)
- lafe_warnc(0, "%s",
- archive_error_string(cpio->archive_read_disk));
- if (r <= ARCHIVE_FAILED) {
- cpio->return_value = 1;
- return (r);
- }
-
- if (cpio->uid_override >= 0) {
- archive_entry_set_uid(entry, cpio->uid_override);
- archive_entry_set_uname(entry, cpio->uname_override);
- }
- if (cpio->gid_override >= 0) {
- archive_entry_set_gid(entry, cpio->gid_override);
- archive_entry_set_gname(entry, cpio->gname_override);
- }
-
- /*
- * Generate a destination path for this entry.
- * "destination path" is the name to which it will be copied in
- * pass mode or the name that will go into the archive in
- * output mode.
- */
- destpath = srcpath;
- if (cpio->destdir) {
- len = strlen(cpio->destdir) + strlen(srcpath) + 8;
- if (len >= cpio->pass_destpath_alloc) {
- while (len >= cpio->pass_destpath_alloc) {
- cpio->pass_destpath_alloc += 512;
- cpio->pass_destpath_alloc *= 2;
- }
- free(cpio->pass_destpath);
- cpio->pass_destpath = malloc(cpio->pass_destpath_alloc);
- if (cpio->pass_destpath == NULL)
- lafe_errc(1, ENOMEM,
- "Can't allocate path buffer");
- }
- strcpy(cpio->pass_destpath, cpio->destdir);
- p = srcpath;
- while (p[0] == '/')
- ++p;
- strcat(cpio->pass_destpath, p);
- destpath = cpio->pass_destpath;
- }
- if (cpio->option_rename)
- destpath = cpio_rename(destpath);
- if (destpath == NULL)
- return (0);
- archive_entry_copy_pathname(entry, destpath);
-
- /*
- * If we're trying to preserve hardlinks, match them here.
- */
- spare = NULL;
- if (cpio->linkresolver != NULL
- && archive_entry_filetype(entry) != AE_IFDIR) {
- archive_entry_linkify(cpio->linkresolver, &entry, &spare);
- }
-
- if (entry != NULL) {
- r = entry_to_archive(cpio, entry);
- archive_entry_free(entry);
- if (spare != NULL) {
- if (r == 0)
- r = entry_to_archive(cpio, spare);
- archive_entry_free(spare);
- }
- }
- return (r);
-}
-
-static int
-entry_to_archive(struct cpio *cpio, struct archive_entry *entry)
-{
- const char *destpath = archive_entry_pathname(entry);
- const char *srcpath = archive_entry_sourcepath(entry);
- int fd = -1;
- ssize_t bytes_read;
- int r;
-
- /* Print out the destination name to the user. */
- if (cpio->verbose)
- fprintf(stderr,"%s", destpath);
-
- /*
- * Option_link only makes sense in pass mode and for
- * regular files. Also note: if a link operation fails
- * because of cross-device restrictions, we'll fall back
- * to copy mode for that entry.
- *
- * TODO: Test other cpio implementations to see if they
- * hard-link anything other than regular files here.
- */
- if (cpio->option_link
- && archive_entry_filetype(entry) == AE_IFREG)
- {
- struct archive_entry *t;
- /* Save the original entry in case we need it later. */
- t = archive_entry_clone(entry);
- if (t == NULL)
- lafe_errc(1, ENOMEM, "Can't create link");
- /* Note: link(2) doesn't create parent directories,
- * so we use archive_write_header() instead as a
- * convenience. */
- archive_entry_set_hardlink(t, srcpath);
- /* This is a straight link that carries no data. */
- archive_entry_set_size(t, 0);
- r = archive_write_header(cpio->archive, t);
- archive_entry_free(t);
- if (r != ARCHIVE_OK)
- lafe_warnc(archive_errno(cpio->archive),
- "%s", archive_error_string(cpio->archive));
- if (r == ARCHIVE_FATAL)
- exit(1);
-#ifdef EXDEV
- if (r != ARCHIVE_OK && archive_errno(cpio->archive) == EXDEV) {
- /* Cross-device link: Just fall through and use
- * the original entry to copy the file over. */
- lafe_warnc(0, "Copying file instead");
- } else
-#endif
- return (0);
- }
-
- /*
- * Make sure we can open the file (if necessary) before
- * trying to write the header.
- */
- if (archive_entry_filetype(entry) == AE_IFREG) {
- if (archive_entry_size(entry) > 0) {
- fd = open(srcpath, O_RDONLY | O_BINARY);
- if (fd < 0) {
- lafe_warnc(errno,
- "%s: could not open file", srcpath);
- goto cleanup;
- }
- }
- } else {
- archive_entry_set_size(entry, 0);
- }
-
- r = archive_write_header(cpio->archive, entry);
-
- if (r != ARCHIVE_OK)
- lafe_warnc(archive_errno(cpio->archive),
- "%s: %s",
- srcpath,
- archive_error_string(cpio->archive));
-
- if (r == ARCHIVE_FATAL)
- exit(1);
-
- if (r >= ARCHIVE_WARN && fd >= 0) {
- bytes_read = read(fd, cpio->buff, cpio->buff_size);
- while (bytes_read > 0) {
- r = archive_write_data(cpio->archive,
- cpio->buff, bytes_read);
- if (r < 0)
- lafe_errc(1, archive_errno(cpio->archive),
- "%s", archive_error_string(cpio->archive));
- if (r < bytes_read) {
- lafe_warnc(0,
- "Truncated write; file may have grown while being archived.");
- }
- bytes_read = read(fd, cpio->buff, cpio->buff_size);
- }
- }
-
- fd = restore_time(cpio, entry, srcpath, fd);
-
-cleanup:
- if (cpio->verbose)
- fprintf(stderr,"\n");
- if (fd >= 0)
- close(fd);
- return (0);
-}
-
-static int
-restore_time(struct cpio *cpio, struct archive_entry *entry,
- const char *name, int fd)
-{
-#ifndef HAVE_UTIMES
- static int warned = 0;
-
- (void)cpio; /* UNUSED */
- (void)entry; /* UNUSED */
- (void)name; /* UNUSED */
-
- if (!warned)
- lafe_warnc(0, "Can't restore access times on this platform");
- warned = 1;
- return (fd);
-#else
-#if defined(_WIN32) && !defined(__CYGWIN__)
- struct __timeval times[2];
-#else
- struct timeval times[2];
-#endif
-
- if (!cpio->option_atime_restore)
- return (fd);
-
- times[1].tv_sec = archive_entry_mtime(entry);
- times[1].tv_usec = archive_entry_mtime_nsec(entry) / 1000;
-
- times[0].tv_sec = archive_entry_atime(entry);
- times[0].tv_usec = archive_entry_atime_nsec(entry) / 1000;
-
-#if defined(HAVE_FUTIMES) && !defined(__CYGWIN__)
- if (fd >= 0 && futimes(fd, times) == 0)
- return (fd);
-#endif
- /*
- * Some platform cannot restore access times if the file descriptor
- * is still opened.
- */
- if (fd >= 0) {
- close(fd);
- fd = -1;
- }
-
-#ifdef HAVE_LUTIMES
- if (lutimes(name, times) != 0)
-#else
- if ((AE_IFLNK != archive_entry_filetype(entry))
- && utimes(name, times) != 0)
-#endif
- lafe_warnc(errno, "Can't update time for %s", name);
-#endif
- return (fd);
-}
-
-
-static void
-mode_in(struct cpio *cpio)
-{
- struct archive *a;
- struct archive_entry *entry;
- struct archive *ext;
- const char *destpath;
- int r;
-
- ext = archive_write_disk_new();
- if (ext == NULL)
- lafe_errc(1, 0, "Couldn't allocate restore object");
- r = archive_write_disk_set_options(ext, cpio->extract_flags);
- if (r != ARCHIVE_OK)
- lafe_errc(1, 0, "%s", archive_error_string(ext));
- a = archive_read_new();
- if (a == NULL)
- lafe_errc(1, 0, "Couldn't allocate archive object");
- archive_read_support_compression_all(a);
- archive_read_support_format_all(a);
-
- if (archive_read_open_file(a, cpio->filename, cpio->bytes_per_block))
- lafe_errc(1, archive_errno(a),
- "%s", archive_error_string(a));
- for (;;) {
- r = archive_read_next_header(a, &entry);
- if (r == ARCHIVE_EOF)
- break;
- if (r != ARCHIVE_OK) {
- lafe_errc(1, archive_errno(a),
- "%s", archive_error_string(a));
- }
- if (lafe_excluded(cpio->matching, archive_entry_pathname(entry)))
- continue;
- if (cpio->option_rename) {
- destpath = cpio_rename(archive_entry_pathname(entry));
- archive_entry_set_pathname(entry, destpath);
- } else
- destpath = archive_entry_pathname(entry);
- if (destpath == NULL)
- continue;
- if (cpio->verbose)
- fprintf(stdout, "%s\n", destpath);
- if (cpio->uid_override >= 0)
- archive_entry_set_uid(entry, cpio->uid_override);
- if (cpio->gid_override >= 0)
- archive_entry_set_gid(entry, cpio->gid_override);
- r = archive_write_header(ext, entry);
- if (r != ARCHIVE_OK) {
- fprintf(stderr, "%s: %s\n",
- archive_entry_pathname(entry),
- archive_error_string(ext));
- } else if (archive_entry_size(entry) > 0) {
- r = extract_data(a, ext);
- if (r != ARCHIVE_OK)
- cpio->return_value = 1;
- }
- }
- r = archive_read_close(a);
- if (r != ARCHIVE_OK)
- lafe_errc(1, 0, "%s", archive_error_string(a));
- r = archive_write_close(ext);
- if (r != ARCHIVE_OK)
- lafe_errc(1, 0, "%s", archive_error_string(ext));
- if (!cpio->quiet) {
- int64_t blocks = (archive_position_uncompressed(a) + 511)
- / 512;
- fprintf(stderr, "%lu %s\n", (unsigned long)blocks,
- blocks == 1 ? "block" : "blocks");
- }
- archive_read_finish(a);
- archive_write_finish(ext);
- exit(cpio->return_value);
-}
-
-/*
- * Exits if there's a fatal error. Returns ARCHIVE_OK
- * if everything is kosher.
- */
-static int
-extract_data(struct archive *ar, struct archive *aw)
-{
- int r;
- size_t size;
- const void *block;
- off_t offset;
-
- for (;;) {
- r = archive_read_data_block(ar, &block, &size, &offset);
- if (r == ARCHIVE_EOF)
- return (ARCHIVE_OK);
- if (r != ARCHIVE_OK) {
- lafe_warnc(archive_errno(ar),
- "%s", archive_error_string(ar));
- exit(1);
- }
- r = archive_write_data_block(aw, block, size, offset);
- if (r != ARCHIVE_OK) {
- lafe_warnc(archive_errno(aw),
- "%s", archive_error_string(aw));
- return (r);
- }
- }
-}
-
-static void
-mode_list(struct cpio *cpio)
-{
- struct archive *a;
- struct archive_entry *entry;
- int r;
-
- a = archive_read_new();
- if (a == NULL)
- lafe_errc(1, 0, "Couldn't allocate archive object");
- archive_read_support_compression_all(a);
- archive_read_support_format_all(a);
-
- if (archive_read_open_file(a, cpio->filename, cpio->bytes_per_block))
- lafe_errc(1, archive_errno(a),
- "%s", archive_error_string(a));
- for (;;) {
- r = archive_read_next_header(a, &entry);
- if (r == ARCHIVE_EOF)
- break;
- if (r != ARCHIVE_OK) {
- lafe_errc(1, archive_errno(a),
- "%s", archive_error_string(a));
- }
- if (lafe_excluded(cpio->matching, archive_entry_pathname(entry)))
- continue;
- if (cpio->verbose)
- list_item_verbose(cpio, entry);
- else
- fprintf(stdout, "%s\n", archive_entry_pathname(entry));
- }
- r = archive_read_close(a);
- if (r != ARCHIVE_OK)
- lafe_errc(1, 0, "%s", archive_error_string(a));
- if (!cpio->quiet) {
- int64_t blocks = (archive_position_uncompressed(a) + 511)
- / 512;
- fprintf(stderr, "%lu %s\n", (unsigned long)blocks,
- blocks == 1 ? "block" : "blocks");
- }
- archive_read_finish(a);
- exit(0);
-}
-
-/*
- * Display information about the current file.
- *
- * The format here roughly duplicates the output of 'ls -l'.
- * This is based on SUSv2, where 'tar tv' is documented as
- * listing additional information in an "unspecified format,"
- * and 'pax -l' is documented as using the same format as 'ls -l'.
- */
-static void
-list_item_verbose(struct cpio *cpio, struct archive_entry *entry)
-{
- char size[32];
- char date[32];
- char uids[16], gids[16];
- const char *uname, *gname;
- FILE *out = stdout;
- const char *fmt;
- time_t mtime;
- static time_t now;
-
- if (!now)
- time(&now);
-
- if (cpio->option_numeric_uid_gid) {
- /* Format numeric uid/gid for display. */
- strcpy(uids, cpio_i64toa(archive_entry_uid(entry)));
- uname = uids;
- strcpy(gids, cpio_i64toa(archive_entry_gid(entry)));
- gname = gids;
- } else {
- /* Use uname if it's present, else lookup name from uid. */
- uname = archive_entry_uname(entry);
- if (uname == NULL)
- uname = lookup_uname(cpio, archive_entry_uid(entry));
- /* Use gname if it's present, else lookup name from gid. */
- gname = archive_entry_gname(entry);
- if (gname == NULL)
- gname = lookup_gname(cpio, archive_entry_gid(entry));
- }
-
- /* Print device number or file size. */
- if (archive_entry_filetype(entry) == AE_IFCHR
- || archive_entry_filetype(entry) == AE_IFBLK) {
- snprintf(size, sizeof(size), "%lu,%lu",
- (unsigned long)archive_entry_rdevmajor(entry),
- (unsigned long)archive_entry_rdevminor(entry));
- } else {
- strcpy(size, cpio_i64toa(archive_entry_size(entry)));
- }
-
- /* Format the time using 'ls -l' conventions. */
- mtime = archive_entry_mtime(entry);
-#if defined(_WIN32) && !defined(__CYGWIN__)
- /* Windows' strftime function does not support %e format. */
- if (mtime - now > 365*86400/2
- || mtime - now < -365*86400/2)
- fmt = cpio->day_first ? "%d %b %Y" : "%b %d %Y";
- else
- fmt = cpio->day_first ? "%d %b %H:%M" : "%b %d %H:%M";
-#else
- if (abs(mtime - now) > (365/2)*86400)
- fmt = cpio->day_first ? "%e %b %Y" : "%b %e %Y";
- else
- fmt = cpio->day_first ? "%e %b %H:%M" : "%b %e %H:%M";
-#endif
- strftime(date, sizeof(date), fmt, localtime(&mtime));
-
- fprintf(out, "%s%3d %-8s %-8s %8s %12s %s",
- archive_entry_strmode(entry),
- archive_entry_nlink(entry),
- uname, gname, size, date,
- archive_entry_pathname(entry));
-
- /* Extra information for links. */
- if (archive_entry_hardlink(entry)) /* Hard link */
- fprintf(out, " link to %s", archive_entry_hardlink(entry));
- else if (archive_entry_symlink(entry)) /* Symbolic link */
- fprintf(out, " -> %s", archive_entry_symlink(entry));
- fprintf(out, "\n");
-}
-
-static void
-mode_pass(struct cpio *cpio, const char *destdir)
-{
- struct lafe_line_reader *lr;
- const char *p;
- int r;
-
- /* Ensure target dir has a trailing '/' to simplify path surgery. */
- cpio->destdir = malloc(strlen(destdir) + 8);
- strcpy(cpio->destdir, destdir);
- if (destdir[strlen(destdir) - 1] != '/')
- strcat(cpio->destdir, "/");
-
- cpio->archive = archive_write_disk_new();
- if (cpio->archive == NULL)
- lafe_errc(1, 0, "Failed to allocate archive object");
- r = archive_write_disk_set_options(cpio->archive, cpio->extract_flags);
- if (r != ARCHIVE_OK)
- lafe_errc(1, 0, "%s", archive_error_string(cpio->archive));
- cpio->linkresolver = archive_entry_linkresolver_new();
- archive_write_disk_set_standard_lookup(cpio->archive);
-
- cpio->archive_read_disk = archive_read_disk_new();
- if (cpio->archive_read_disk == NULL)
- lafe_errc(1, 0, "Failed to allocate archive object");
- if (cpio->option_follow_links)
- archive_read_disk_set_symlink_logical(cpio->archive_read_disk);
- else
- archive_read_disk_set_symlink_physical(cpio->archive_read_disk);
- archive_read_disk_set_standard_lookup(cpio->archive_read_disk);
-
- lr = lafe_line_reader("-", cpio->option_null);
- while ((p = lafe_line_reader_next(lr)) != NULL)
- file_to_archive(cpio, p);
- lafe_line_reader_free(lr);
-
- archive_entry_linkresolver_free(cpio->linkresolver);
- r = archive_write_close(cpio->archive);
- if (r != ARCHIVE_OK)
- lafe_errc(1, 0, "%s", archive_error_string(cpio->archive));
-
- if (!cpio->quiet) {
- int64_t blocks =
- (archive_position_uncompressed(cpio->archive) + 511)
- / 512;
- fprintf(stderr, "%lu %s\n", (unsigned long)blocks,
- blocks == 1 ? "block" : "blocks");
- }
-
- archive_write_finish(cpio->archive);
-}
-
-/*
- * Prompt for a new name for this entry. Returns a pointer to the
- * new name or NULL if the entry should not be copied. This
- * implements the semantics defined in POSIX.1-1996, which specifies
- * that an input of '.' means the name should be unchanged. GNU cpio
- * treats '.' as a literal new name.
- */
-static const char *
-cpio_rename(const char *name)
-{
- static char buff[1024];
- FILE *t;
- char *p, *ret;
-
- t = fopen("/dev/tty", "r+");
- if (t == NULL)
- return (name);
- fprintf(t, "%s (Enter/./(new name))? ", name);
- fflush(t);
-
- p = fgets(buff, sizeof(buff), t);
- fclose(t);
- if (p == NULL)
- /* End-of-file is a blank line. */
- return (NULL);
-
- while (*p == ' ' || *p == '\t')
- ++p;
- if (*p == '\n' || *p == '\0')
- /* Empty line. */
- return (NULL);
- if (*p == '.' && p[1] == '\n')
- /* Single period preserves original name. */
- return (name);
- ret = p;
- /* Trim the final newline. */
- while (*p != '\0' && *p != '\n')
- ++p;
- /* Overwrite the final \n with a null character. */
- *p = '\0';
- return (ret);
-}
-
-static void
-free_cache(struct name_cache *cache)
-{
- size_t i;
-
- if (cache != NULL) {
- for (i = 0; i < cache->size; i++)
- free(cache->cache[i].name);
- free(cache);
- }
-}
-
-/*
- * Lookup uname/gname from uid/gid, return NULL if no match.
- */
-static const char *
-lookup_name(struct cpio *cpio, struct name_cache **name_cache_variable,
- int (*lookup_fn)(struct cpio *, const char **, id_t), id_t id)
-{
- char asnum[16];
- struct name_cache *cache;
- const char *name;
- int slot;
-
-
- if (*name_cache_variable == NULL) {
- *name_cache_variable = malloc(sizeof(struct name_cache));
- if (*name_cache_variable == NULL)
- lafe_errc(1, ENOMEM, "No more memory");
- memset(*name_cache_variable, 0, sizeof(struct name_cache));
- (*name_cache_variable)->size = name_cache_size;
- }
-
- cache = *name_cache_variable;
- cache->probes++;
-
- slot = id % cache->size;
- if (cache->cache[slot].name != NULL) {
- if (cache->cache[slot].id == id) {
- cache->hits++;
- return (cache->cache[slot].name);
- }
- free(cache->cache[slot].name);
- cache->cache[slot].name = NULL;
- }
-
- if (lookup_fn(cpio, &name, id) == 0) {
- if (name == NULL || name[0] == '\0') {
- /* If lookup failed, format it as a number. */
- snprintf(asnum, sizeof(asnum), "%u", (unsigned)id);
- name = asnum;
- }
- cache->cache[slot].name = strdup(name);
- if (cache->cache[slot].name != NULL) {
- cache->cache[slot].id = id;
- return (cache->cache[slot].name);
- }
- /*
- * Conveniently, NULL marks an empty slot, so
- * if the strdup() fails, we've just failed to
- * cache it. No recovery necessary.
- */
- }
- return (NULL);
-}
-
-static const char *
-lookup_uname(struct cpio *cpio, uid_t uid)
-{
- return (lookup_name(cpio, &cpio->uname_cache,
- &lookup_uname_helper, (id_t)uid));
-}
-
-static int
-lookup_uname_helper(struct cpio *cpio, const char **name, id_t id)
-{
- struct passwd *pwent;
-
- (void)cpio; /* UNUSED */
-
- errno = 0;
- pwent = getpwuid((uid_t)id);
- if (pwent == NULL) {
- *name = NULL;
- if (errno != 0 && errno != ENOENT)
- lafe_warnc(errno, "getpwuid(%d) failed", id);
- return (errno);
- }
-
- *name = pwent->pw_name;
- return (0);
-}
-
-static const char *
-lookup_gname(struct cpio *cpio, gid_t gid)
-{
- return (lookup_name(cpio, &cpio->gname_cache,
- &lookup_gname_helper, (id_t)gid));
-}
-
-static int
-lookup_gname_helper(struct cpio *cpio, const char **name, id_t id)
-{
- struct group *grent;
-
- (void)cpio; /* UNUSED */
-
- errno = 0;
- grent = getgrgid((gid_t)id);
- if (grent == NULL) {
- *name = NULL;
- if (errno != 0)
- lafe_warnc(errno, "getgrgid(%d) failed", id);
- return (errno);
- }
-
- *name = grent->gr_name;
- return (0);
-}
-
-/*
- * It would be nice to just use printf() for formatting large numbers,
- * but the compatibility problems are a big headache. Hence the
- * following simple utility function.
- */
-const char *
-cpio_i64toa(int64_t n0)
-{
- // 2^64 =~ 1.8 * 10^19, so 20 decimal digits suffice.
- // We also need 1 byte for '-' and 1 for '\0'.
- static char buff[22];
- int64_t n = n0 < 0 ? -n0 : n0;
- char *p = buff + sizeof(buff);
-
- *--p = '\0';
- do {
- *--p = '0' + (int)(n % 10);
- n /= 10;
- } while (n > 0);
- if (n0 < 0)
- *--p = '-';
- return p;
-}
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