/* * 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); if (cpio->gid_override >= 0) archive_entry_set_gid(entry, cpio->gid_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); }
/* * 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) { struct stat st; const char *destpath; struct archive_entry *entry, *spare; size_t len; const char *p; #if !defined(_WIN32) || defined(__CYGWIN__) int lnklen; #endif int r; /* * Create an archive_entry describing the source file. * * XXX TODO: rework to use archive_read_disk_entry_from_file() */ entry = archive_entry_new(); if (entry == NULL) cpio_errc(1, 0, "Couldn't allocate entry"); archive_entry_copy_sourcepath(entry, srcpath); /* Get stat information. */ if (cpio->option_follow_links) r = stat(srcpath, &st); else r = lstat(srcpath, &st); if (r != 0) { cpio_warnc(errno, "Couldn't stat \"%s\"", srcpath); archive_entry_free(entry); return (0); } if (cpio->uid_override >= 0) st.st_uid = cpio->uid_override; if (cpio->gid_override >= 0) st.st_gid = cpio->uid_override; archive_entry_copy_stat(entry, &st); #if !defined(_WIN32) || defined(__CYGWIN__) /* If its a symlink, pull the target. */ if (S_ISLNK(st.st_mode)) { lnklen = readlink(srcpath, cpio->buff, cpio->buff_size); if (lnklen < 0) { cpio_warnc(errno, "%s: Couldn't read symbolic link", srcpath); archive_entry_free(entry); return (0); } cpio->buff[lnklen] = 0; archive_entry_set_symlink(entry, cpio->buff); } #endif /* * 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) cpio_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 && !S_ISDIR(st.st_mode)) { 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 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); }
static void mode_out(struct cpio *cpio) { unsigned long blocks; struct archive_entry *entry, *spare; struct line_reader *lr; const char *p; int r; if (cpio->option_append) cpio_errc(1, 0, "Append mode not yet supported."); cpio->archive = archive_write_new(); if (cpio->archive == NULL) cpio_errc(1, 0, "Failed to allocate archive object"); switch (cpio->compress) { #ifdef HAVE_BZLIB_H case 'j': case 'y': archive_write_set_compression_bzip2(cpio->archive); break; #endif #ifdef HAVE_ZLIB_H case 'z': archive_write_set_compression_gzip(cpio->archive); break; #endif case 'Z': archive_write_set_compression_compress(cpio->archive); break; default: archive_write_set_compression_none(cpio->archive); break; } r = archive_write_set_format_by_name(cpio->archive, cpio->format); if (r != ARCHIVE_OK) cpio_errc(1, 0, 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)); r = archive_write_open_file(cpio->archive, cpio->filename); if (r != ARCHIVE_OK) cpio_errc(1, 0, archive_error_string(cpio->archive)); lr = process_lines_init("-", cpio->line_separator); while ((p = process_lines_next(lr)) != NULL) file_to_archive(cpio, p); process_lines_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) cpio_errc(1, 0, archive_error_string(cpio->archive)); if (!cpio->quiet) { blocks = (archive_position_uncompressed(cpio->archive) + 511) / 512; fprintf(stderr, "%lu %s\n", blocks, blocks == 1 ? "block" : "blocks"); } archive_write_finish(cpio->archive); }