diff options
Diffstat (limited to 'Utilities/cmlibarchive/contrib/shar/shar.c')
-rw-r--r-- | Utilities/cmlibarchive/contrib/shar/shar.c | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/Utilities/cmlibarchive/contrib/shar/shar.c b/Utilities/cmlibarchive/contrib/shar/shar.c deleted file mode 100644 index 91ab2b5..0000000 --- a/Utilities/cmlibarchive/contrib/shar/shar.c +++ /dev/null @@ -1,314 +0,0 @@ -/*- - * Copyright (c) 2008 Jaakko Heinonen - * 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 <sys/cdefs.h> -#ifdef __FBSDID -__FBSDID("$FreeBSD$"); -#endif - -#include <sys/stat.h> -#include <sys/types.h> - -#include <archive.h> -#include <archive_entry.h> -#include <assert.h> -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <limits.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sysexits.h> -#include <unistd.h> - -#include "tree.h" - -/* command line options */ -static int b_opt; /* use alternative shar binary format */ -static int r_opt; /* recurse into subdirectories */ -static char *o_arg; /* output file name */ - -static void -usage(void) -{ - fprintf(stderr, "Usage: shar [-br] [-o filename] file ...\n"); - exit(EX_USAGE); -} - -/* - * Initialize archive structure and create a shar archive. - */ -static struct archive * -shar_create(void) -{ - struct archive *a; - - if ((a = archive_write_new()) == NULL) - errx(EXIT_FAILURE, "%s", archive_error_string(a)); - - if (b_opt) - archive_write_set_format_shar_dump(a); - else - archive_write_set_format_shar(a); - archive_write_set_compression_none(a); - - if (archive_write_open_filename(a, o_arg) != ARCHIVE_OK) - errx(EX_CANTCREAT, "%s", archive_error_string(a)); - - return (a); -} - -/* buffer for file data */ -static char buffer[32768]; - -/* - * Write file data to an archive entry. - */ -static int -shar_write_entry_data(struct archive *a, const int fd) -{ - ssize_t bytes_read, bytes_written; - - assert(a != NULL); - assert(fd >= 0); - - bytes_read = read(fd, buffer, sizeof(buffer)); - while (bytes_read != 0) { - if (bytes_read < 0) { - archive_set_error(a, errno, "Read failed"); - return (ARCHIVE_WARN); - } - bytes_written = archive_write_data(a, buffer, bytes_read); - if (bytes_written < 0) - return (ARCHIVE_WARN); - bytes_read = read(fd, buffer, sizeof(buffer)); - } - - return (ARCHIVE_OK); -} - -/* - * Write a file to the archive. We have special handling for symbolic links. - */ -static int -shar_write_entry(struct archive *a, const char *pathname, const char *accpath, - const struct stat *st) -{ - struct archive_entry *entry; - int fd = -1; - int ret = ARCHIVE_OK; - - assert(a != NULL); - assert(pathname != NULL); - assert(accpath != NULL); - assert(st != NULL); - - entry = archive_entry_new(); - - if (S_ISREG(st->st_mode) && st->st_size > 0) { - /* regular file */ - if ((fd = open(accpath, O_RDONLY)) == -1) { - warn("%s", accpath); - ret = ARCHIVE_WARN; - goto out; - } - } else if (S_ISLNK(st->st_mode)) { - /* symbolic link */ - char lnkbuff[PATH_MAX + 1]; - int lnklen; - if ((lnklen = readlink(accpath, lnkbuff, PATH_MAX)) == -1) { - warn("%s", accpath); - ret = ARCHIVE_WARN; - goto out; - } - lnkbuff[lnklen] = '\0'; - archive_entry_set_symlink(entry, lnkbuff); - } - archive_entry_copy_stat(entry, st); - archive_entry_set_pathname(entry, pathname); - if (!S_ISREG(st->st_mode) || st->st_size == 0) - archive_entry_set_size(entry, 0); - if (archive_write_header(a, entry) != ARCHIVE_OK) { - warnx("%s: %s", pathname, archive_error_string(a)); - ret = ARCHIVE_WARN; - goto out; - } - if (fd >= 0) { - if ((ret = shar_write_entry_data(a, fd)) != ARCHIVE_OK) - warnx("%s: %s", accpath, archive_error_string(a)); - } -out: - archive_entry_free(entry); - if (fd >= 0) - close(fd); - - return (ret); -} - -/* - * Write singe path to the archive. The path can be a regular file, directory - * or device. Symbolic links are followed. - */ -static int -shar_write_path(struct archive *a, const char *pathname) -{ - struct stat st; - - assert(a != NULL); - assert(pathname != NULL); - - if ((stat(pathname, &st)) == -1) { - warn("%s", pathname); - return (ARCHIVE_WARN); - } - - return (shar_write_entry(a, pathname, pathname, &st)); -} - -/* - * Write tree to the archive. If pathname is a symbolic link it will be - * followed. Other symbolic links are stored as such to the archive. - */ -static int -shar_write_tree(struct archive *a, const char *pathname) -{ - struct tree *t; - const struct stat *lst, *st; - int error = 0; - int tree_ret; - int first; - - assert(a != NULL); - assert(pathname != NULL); - - t = tree_open(pathname); - for (first = 1; (tree_ret = tree_next(t)); first = 0) { - if (tree_ret == TREE_ERROR_DIR) { - warnx("%s: %s", tree_current_path(t), - strerror(tree_errno(t))); - error = 1; - continue; - } else if (tree_ret != TREE_REGULAR) - continue; - if ((lst = tree_current_lstat(t)) == NULL) { - warn("%s", tree_current_path(t)); - error = 1; - continue; - } - /* - * If the symlink was given on command line then - * follow it rather than write it as symlink. - */ - if (first && S_ISLNK(lst->st_mode)) { - if ((st = tree_current_stat(t)) == NULL) { - warn("%s", tree_current_path(t)); - error = 1; - continue; - } - } else - st = lst; - - if (shar_write_entry(a, tree_current_path(t), - tree_current_access_path(t), st) != ARCHIVE_OK) - error = 1; - - tree_descend(t); - } - - tree_close(t); - - return ((error != 0) ? ARCHIVE_WARN : ARCHIVE_OK); -} - -/* - * Create a shar archive and write files/trees into it. - */ -static int -shar_write(char **fn, size_t nfn) -{ - struct archive *a; - size_t i; - int error = 0; - - assert(fn != NULL); - assert(nfn > 0); - - a = shar_create(); - - for (i = 0; i < nfn; i++) { - if (r_opt) { - if (shar_write_tree(a, fn[i]) != ARCHIVE_OK) - error = 1; - } else { - if (shar_write_path(a, fn[i]) != ARCHIVE_OK) - error = 1; - } - } - - if (archive_write_finish(a) != ARCHIVE_OK) - errx(EXIT_FAILURE, "%s", archive_error_string(a)); - - if (error != 0) - warnx("Error exit delayed from previous errors."); - - return (error); -} - -int -main(int argc, char **argv) -{ - int opt; - - while ((opt = getopt(argc, argv, "bro:")) != -1) { - switch (opt) { - case 'b': - b_opt = 1; - break; - case 'o': - o_arg = optarg; - break; - case 'r': - r_opt = 1; - break; - default: - usage(); - /* NOTREACHED */ - } - } - argc -= optind; - argv += optind; - - if(argc < 1) - usage(); - - if (shar_write(argv, argc) != 0) - exit(EXIT_FAILURE); - else - exit(EXIT_SUCCESS); - /* NOTREACHED */ -} - |