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-rw-r--r--libarchive/libarchive-2.4.17/cpio/cpio.c884
1 files changed, 0 insertions, 884 deletions
diff --git a/libarchive/libarchive-2.4.17/cpio/cpio.c b/libarchive/libarchive-2.4.17/cpio/cpio.c
deleted file mode 100644
index 9f24d9c..0000000
--- a/libarchive/libarchive-2.4.17/cpio/cpio.c
+++ /dev/null
@@ -1,884 +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_STAT_H
-#include <sys/stat.h>
-#endif
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-#ifdef HAVE_STDARG_H
-#include <stdarg.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
-
-#include "cpio.h"
-#include "matching.h"
-
-static int copy_data(struct archive *, struct archive *);
-static const char *cpio_rename(const char *name);
-static int file_to_archive(struct cpio *, const char *, const char *);
-static void long_help(void);
-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 out_file(struct cpio *, const char *pathname);
-static int process_lines(struct cpio *cpio, const char *pathname,
- int (*process)(struct cpio *, const char *));
-static void restore_time(struct cpio *, struct archive_entry *,
- const char *, int fd);
-static void usage(void);
-static void version(FILE *);
-
-int
-main(int argc, char *argv[])
-{
- struct cpio _cpio; /* Allocated on stack. */
- struct cpio *cpio;
- int uid, gid;
- int opt;
-
- cpio = &_cpio;
- memset(cpio, 0, sizeof(*cpio));
-
- /* Need cpio_progname before calling cpio_warnc. */
- if (*argv == NULL)
- cpio_progname = "bsdcpio";
- else {
- cpio_progname = strrchr(*argv, '/');
- if (cpio_progname != NULL)
- cpio_progname++;
- else
- cpio_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';
- /* TODO: Implement old binary format in libarchive, use that here. */
- cpio->format = "odc"; /* Default format */
- cpio->extract_flags = ARCHIVE_EXTRACT_NO_AUTODIR;
- cpio->extract_flags |= ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER;
- /* TODO: If run by root, set owner as well. */
- cpio->bytes_per_block = 512;
- cpio->filename = NULL;
-
- while ((opt = cpio_getopt(cpio)) != -1) {
- switch (opt) {
- case 'a': /* POSIX 1997 */
- cpio->option_atime_restore = 1;
- break;
- case 'B': /* POSIX 1997 */
- cpio->bytes_per_block = 5120;
- break;
- case 'c': /* POSIX 1997 */
- cpio->format = "odc";
- break;
- case 'd': /* POSIX 1997 */
- cpio->extract_flags &= ~ARCHIVE_EXTRACT_NO_AUTODIR;
- break;
- case 'f': /* POSIX 1997 */
- exclude(cpio, optarg);
- break;
- case 'H': /* GNU cpio, also --format */
- cpio->format = optarg;
- break;
- case 'h':
- long_help();
- break;
- case 'i': /* POSIX 1997 */
- cpio->mode = opt;
- break;
- case 'L': /* GNU cpio, BSD convention */
- cpio->option_follow_links = 1;
- break;
- case 'l': /* POSIX 1997 */
- cpio->option_link = 1;
- break;
- case 'm': /* POSIX 1997 */
- cpio->extract_flags |= ARCHIVE_EXTRACT_TIME;
- break;
- case 'o': /* POSIX 1997 */
- cpio->mode = opt;
- break;
- case 'p': /* POSIX 1997 */
- cpio->mode = opt;
- break;
- case OPTION_QUIET: /* GNU cpio */
- cpio->quiet = 1;
- break;
- case 'R': /* GNU cpio, also --owner */
- if (owner_parse(optarg, &uid, &gid))
- usage();
- if (uid != -1)
- cpio->uid_override = uid;
- if (gid != -1)
- cpio->gid_override = gid;
- 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(stdout);
- 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;
- default:
- usage();
- }
- }
-
- /* TODO: Sanity-check args, error out on nonsensical combinations. */
-
- cpio->argc -= optind;
- cpio->argv += optind;
-
- switch (cpio->mode) {
- case 'o':
- mode_out(cpio);
- break;
- case 'i':
- while (*cpio->argv != NULL) {
- include(cpio, *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')
- cpio_errc(1, 0,
- "-p mode requires a target directory");
- mode_pass(cpio, *cpio->argv);
- break;
- default:
- cpio_errc(1, 0,
- "Must specify at least one of -i, -o, or -p");
- }
-
- return (0);
-}
-
-void
-usage(void)
-{
- const char *p;
-
- p = cpio_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);
-#ifdef HAVE_GETOPT_LONG
- fprintf(stderr, " Help: %s --help\n", p);
-#else
- fprintf(stderr, " Help: %s -h\n", p);
-#endif
- 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"
- " -z, -y Compress archive with gzip/bzip2\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 = cpio_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(stdout);
-}
-
-static void
-version(FILE *out)
-{
- fprintf(out,"bsdcpio %s -- %s\n",
- BSDCPIO_VERSION_STRING,
- archive_version());
- exit(1);
-}
-
-static void
-mode_out(struct cpio *cpio)
-{
- unsigned long blocks;
- int r;
-
- cpio->archive = archive_write_new();
- if (cpio->archive == NULL)
- cpio_errc(1, 0, "Failed to allocate archive object");
- switch (cpio->compress) {
- case 'j': case 'y':
- archive_write_set_compression_bzip2(cpio->archive);
- break;
- case 'z':
- archive_write_set_compression_gzip(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();
-
- r = archive_write_open_file(cpio->archive, cpio->filename);
- if (r != ARCHIVE_OK)
- cpio_errc(1, 0, archive_error_string(cpio->archive));
- process_lines(cpio, "-", out_file);
-
- 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);
-}
-
-static int
-out_file(struct cpio *cpio, const char *path)
-{
- const char *destpath;
-
- if (cpio->option_rename)
- destpath = cpio_rename(path);
- else
- destpath = path;
- if (destpath == NULL)
- return (0);
- return (file_to_archive(cpio, path, destpath));
-}
-
-/*
- * 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)
-{
- static char buff[16384];
- struct stat st;
- struct archive_entry *entry;
- const char *linkname;
- int fd = -1;
- ssize_t len;
- int r;
-
- if (cpio->verbose)
- fprintf(stderr,"%s", destpath);
-
- entry = archive_entry_new();
- if (entry == NULL)
- cpio_errc(1, 0, "Couldn't allocate entry");
- archive_entry_set_pathname(entry, destpath);
-
- /* TODO: pathname editing. */
-
- 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);
- goto cleanup;
- }
-
- /* If we're trying to preserve hardlinks, match them here. */
- if (cpio->linkresolver != NULL
- && st.st_nlink > 1
- && !S_ISDIR(st.st_mode)) {
- linkname = archive_entry_linkresolve(cpio->linkresolver, entry);
- archive_entry_set_hardlink(entry, linkname);
- }
-
- if (S_ISLNK(st.st_mode)) {
- int lnklen;
-
- lnklen = readlink(srcpath, buff, sizeof(buff));
- if (lnklen < 0) {
- cpio_warnc(errno,
- "%s: Couldn't read symbolic link", srcpath);
- goto cleanup;
- }
- buff[lnklen] = 0;
- archive_entry_set_symlink(entry, buff);
- }
-
- 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);
-
- /* Obviously, this only gets invoked in pass mode. */
- if (cpio->option_link) {
- /* Note: link(2) doesn't create parent directories. */
- archive_entry_set_hardlink(entry, srcpath);
- r = archive_write_header(cpio->archive, entry);
- if (r == ARCHIVE_OK)
- return (0);
- cpio_warnc(archive_errno(cpio->archive),
- archive_error_string(cpio->archive));
- if (r == ARCHIVE_FATAL)
- exit(1);
- return (0);
- }
-
- /*
- * Make sure we can open the file (if necessary) before
- * trying to write the header.
- */
- if (S_ISREG(st.st_mode) && st.st_size > 0) {
- fd = open(srcpath, O_RDONLY);
- if (fd < 0) {
- cpio_warnc(errno,
- "%s: could not open file", srcpath);
- goto cleanup;
- }
- }
-
- if (!S_ISREG(st.st_mode))
- archive_entry_set_size(entry, 0);
-
- r = archive_write_header(cpio->archive, entry);
-
- if (r != ARCHIVE_OK)
- cpio_warnc(archive_errno(cpio->archive),
- "%s: %s",
- destpath,
- archive_error_string(cpio->archive));
-
- if (r == ARCHIVE_FATAL)
- exit(1);
-
- if (r >= ARCHIVE_WARN && fd >= 0 && archive_entry_size(entry) > 0) {
- fd = open(srcpath, O_RDONLY);
- len = read(fd, buff, sizeof(buff));
- while (len > 0) {
- r = archive_write_data(cpio->archive, buff, len);
- if (r < 0)
- cpio_errc(1, archive_errno(cpio->archive),
- archive_error_string(cpio->archive));
- if (r < len) {
- cpio_warnc(0,
- "Truncated write; file may have grown while being archived.");
- }
- len = read(fd, buff, sizeof(buff));
- }
- }
-
- restore_time(cpio, entry, srcpath, fd);
-
-cleanup:
- if (cpio->verbose)
- fprintf(stderr,"\n");
- if (fd >= 0)
- close(fd);
- if (entry != NULL)
- archive_entry_free(entry);
-
- return (0);
-}
-
-static void
-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 */
- (void)fd; /* UNUSED */
-
- if (!warned)
- cpio_warnc(0, "Can't restore access times on this platform");
- warned = 1;
- return;
-#else
- struct timeval times[2];
-
- if (!cpio->option_atime_restore)
- return;
-
- 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;
-
-#ifdef HAVE_FUTIMES
- if (fd >= 0 && futimes(fd, times) == 0)
- return;
-#endif
-
-#ifdef HAVE_LUTIMES
- if (lutimes(name, times) != 0)
-#else
- if (!S_ISLNK(archive_entry_mode(entry)) && utimes(name, times) != 0)
-#endif
- cpio_warnc(errno, "Can't update time for %s", name);
-#endif
-}
-
-
-static void
-mode_in(struct cpio *cpio)
-{
- struct archive *a;
- struct archive_entry *entry;
- struct archive *ext;
- const char *destpath;
- unsigned long blocks;
- int r;
-
- ext = archive_write_disk_new();
- if (ext == NULL)
- cpio_errc(1, 0, "Couldn't allocate restore object");
- r = archive_write_disk_set_options(ext, cpio->extract_flags);
- if (r != ARCHIVE_OK)
- cpio_errc(1, 0, archive_error_string(ext));
- a = archive_read_new();
- if (a == NULL)
- cpio_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))
- cpio_errc(1, archive_errno(a),
- archive_error_string(a));
- for (;;) {
- r = archive_read_next_header(a, &entry);
- if (r == ARCHIVE_EOF)
- break;
- if (r != ARCHIVE_OK) {
- cpio_errc(1, archive_errno(a),
- archive_error_string(a));
- }
- if (excluded(cpio, 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 = copy_data(a, ext);
- }
- }
- r = archive_read_close(a);
- if (r != ARCHIVE_OK)
- cpio_errc(1, 0, archive_error_string(a));
- r = archive_write_close(ext);
- if (r != ARCHIVE_OK)
- cpio_errc(1, 0, archive_error_string(ext));
- if (!cpio->quiet) {
- blocks = (archive_position_uncompressed(a) + 511)
- / 512;
- fprintf(stderr, "%lu %s\n", blocks,
- blocks == 1 ? "block" : "blocks");
- }
- archive_read_finish(a);
- archive_write_finish(ext);
- exit(0);
-}
-
-static int
-copy_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) {
- cpio_warnc(archive_errno(ar),
- "%s", archive_error_string(ar));
- return (r);
- }
- r = archive_write_data_block(aw, block, size, offset);
- if (r != ARCHIVE_OK) {
- cpio_warnc(archive_errno(aw),
- archive_error_string(aw));
- return (r);
- }
- }
-}
-
-static void
-mode_list(struct cpio *cpio)
-{
- struct archive *a;
- struct archive_entry *entry;
- unsigned long blocks;
- int r;
-
- a = archive_read_new();
- if (a == NULL)
- cpio_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))
- cpio_errc(1, archive_errno(a),
- archive_error_string(a));
- for (;;) {
- r = archive_read_next_header(a, &entry);
- if (r == ARCHIVE_EOF)
- break;
- if (r != ARCHIVE_OK) {
- cpio_errc(1, archive_errno(a),
- archive_error_string(a));
- }
- if (excluded(cpio, archive_entry_pathname(entry)))
- continue;
- if (cpio->verbose) {
- /* TODO: uname/gname lookups */
- /* TODO: Clean this up. */
- fprintf(stdout,
- "%s%3d %8s%8s " CPIO_FILESIZE_PRINTF " %s\n",
- archive_entry_strmode(entry),
- archive_entry_nlink(entry),
- archive_entry_uname(entry),
- archive_entry_gname(entry),
- (CPIO_FILESIZE_TYPE)archive_entry_size(entry),
- archive_entry_pathname(entry));
- } else
- fprintf(stdout, "%s\n", archive_entry_pathname(entry));
- }
- r = archive_read_close(a);
- if (r != ARCHIVE_OK)
- cpio_errc(1, 0, archive_error_string(a));
- if (!cpio->quiet) {
- blocks = (archive_position_uncompressed(a) + 511)
- / 512;
- fprintf(stderr, "%lu %s\n", blocks,
- blocks == 1 ? "block" : "blocks");
- }
- archive_read_finish(a);
- exit(0);
-}
-
-/*
- * TODO: Fix hardlink handling.
- */
-static int
-pass_file(struct cpio *cpio, const char *pathname)
-{
- size_t len;
- const char *destpath;
-
- len = strlen(cpio->pass_destdir) + strlen(pathname) + 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");
- }
- if (pathname[0] == '/')
- pathname++;
- strcpy(cpio->pass_destpath, cpio->pass_destdir);
- strcat(cpio->pass_destpath, pathname);
- destpath = cpio->pass_destpath;
- if (cpio->option_rename)
- destpath = cpio_rename(destpath);
- if (destpath != NULL)
- file_to_archive(cpio, pathname, destpath);
- return (0);
-}
-
-static void
-mode_pass(struct cpio *cpio, const char *destdir)
-{
- int r;
-
- /* Ensure target dir has a trailing '/' to simplify path surgery. */
- cpio->pass_destdir = malloc(strlen(destdir) + 8);
- strcpy(cpio->pass_destdir, destdir);
- if (destdir[strlen(destdir) - 1] != '/')
- strcat(cpio->pass_destdir, "/");
-
- cpio->archive = archive_write_disk_new();
- if (cpio->archive == NULL)
- cpio_errc(1, 0, "Failed to allocate archive object");
- r = archive_write_disk_set_options(cpio->archive, cpio->extract_flags);
- if (r != ARCHIVE_OK)
- cpio_errc(1, 0, archive_error_string(cpio->archive));
- cpio->linkresolver = archive_entry_linkresolver_new();
- archive_write_disk_set_standard_lookup(cpio->archive);
- process_lines(cpio, "-", pass_file);
-
- archive_entry_linkresolver_free(cpio->linkresolver);
- r = archive_write_close(cpio->archive);
- if (r != ARCHIVE_OK)
- cpio_errc(1, 0, archive_error_string(cpio->archive));
- 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);
-}
-
-
-/*
- * Read lines from file and do something with each one. If option_null
- * is set, lines are terminated with zero bytes; otherwise, they're
- * terminated with newlines.
- *
- * This uses a self-sizing buffer to handle arbitrarily-long lines.
- * If the "process" function returns non-zero for any line, this
- * function will return non-zero after attempting to process all
- * remaining lines.
- */
-static int
-process_lines(struct cpio *cpio, const char *pathname,
- int (*process)(struct cpio *, const char *))
-{
- FILE *f;
- char *buff, *buff_end, *line_start, *line_end, *p;
- size_t buff_length, bytes_read, bytes_wanted;
- int separator;
- int ret;
-
- separator = cpio->option_null ? '\0' : '\n';
- ret = 0;
-
- if (strcmp(pathname, "-") == 0)
- f = stdin;
- else
- f = fopen(pathname, "r");
- if (f == NULL)
- cpio_errc(1, errno, "Couldn't open %s", pathname);
- buff_length = 8192;
- buff = malloc(buff_length);
- if (buff == NULL)
- cpio_errc(1, ENOMEM, "Can't read %s", pathname);
- line_start = line_end = buff_end = buff;
- for (;;) {
- /* Get some more data into the buffer. */
- bytes_wanted = buff + buff_length - buff_end;
- bytes_read = fread(buff_end, 1, bytes_wanted, f);
- buff_end += bytes_read;
- /* Process all complete lines in the buffer. */
- while (line_end < buff_end) {
- if (*line_end == separator) {
- *line_end = '\0';
- if ((*process)(cpio, line_start) != 0)
- ret = -1;
- line_start = line_end + 1;
- line_end = line_start;
- } else
- line_end++;
- }
- if (feof(f))
- break;
- if (ferror(f))
- cpio_errc(1, errno, "Can't read %s", pathname);
- if (line_start > buff) {
- /* Move a leftover fractional line to the beginning. */
- memmove(buff, line_start, buff_end - line_start);
- buff_end -= line_start - buff;
- line_end -= line_start - buff;
- line_start = buff;
- } else {
- /* Line is too big; enlarge the buffer. */
- p = realloc(buff, buff_length *= 2);
- if (p == NULL)
- cpio_errc(1, ENOMEM,
- "Line too long in %s", pathname);
- buff_end = p + (buff_end - buff);
- line_end = p + (line_end - buff);
- line_start = buff = p;
- }
- }
- /* At end-of-file, handle the final line. */
- if (line_end > line_start) {
- *line_end = '\0';
- if ((*process)(cpio, line_start) != 0)
- ret = -1;
- }
- free(buff);
- if (f != stdin)
- fclose(f);
- return (ret);
-}
generated by cgit v1.2.3 (git 2.46.0) at 2026-01-12 11:54:18 +0000