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-rw-r--r--bin/Makemodule.am3
-rw-r--r--bin/tar2sqfs/options.c (renamed from bin/tar2sqfs.c)330
-rw-r--r--bin/tar2sqfs/process_tarball.c272
-rw-r--r--bin/tar2sqfs/tar2sqfs.c46
-rw-r--r--bin/tar2sqfs/tar2sqfs.h37
5 files changed, 364 insertions, 324 deletions
diff --git a/bin/Makemodule.am b/bin/Makemodule.am
index 3e32308..2328d5c 100644
--- a/bin/Makemodule.am
+++ b/bin/Makemodule.am
@@ -4,7 +4,8 @@ sqfs2tar_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
sqfs2tar_LDADD = libcommon.a libutil.a libsquashfs.la libtar.a libcompat.a
sqfs2tar_LDADD += libfstree.a $(LZO_LIBS) $(PTHREAD_LIBS)
-tar2sqfs_SOURCES = bin/tar2sqfs.c
+tar2sqfs_SOURCES = bin/tar2sqfs/tar2sqfs.c bin/tar2sqfs/tar2sqfs.h
+tar2sqfs_SOURCES += bin/tar2sqfs/options.c bin/tar2sqfs/process_tarball.c
tar2sqfs_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
tar2sqfs_LDADD = libcommon.a libsquashfs.la libtar.a
tar2sqfs_LDADD += libfstree.a libcompat.a libfstree.a $(LZO_LIBS)
diff --git a/bin/tar2sqfs.c b/bin/tar2sqfs/options.c
index bdd36e1..b5aa3ba 100644
--- a/bin/tar2sqfs.c
+++ b/bin/tar2sqfs/options.c
@@ -1,23 +1,4 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * tar2sqfs.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "config.h"
-#include "common.h"
-#include "compat.h"
-#include "tar.h"
-
-#include <stdlib.h>
-#include <getopt.h>
-#include <string.h>
-#include <stdio.h>
-#include <fcntl.h>
-
-#ifdef _WIN32
-#include <io.h>
-#endif
+#include "tar2sqfs.h"
static struct option long_opts[] = {
{ "root-becomes", required_argument, NULL, 'r' },
@@ -100,15 +81,13 @@ static const char *usagestr =
"\txzcat rootfs.tar.xz | tar2sqfs rootfs.sqfs\n"
"\n";
-static bool dont_skip = false;
-static bool keep_time = true;
-static bool no_tail_pack = false;
-static sqfs_writer_cfg_t cfg;
-static sqfs_writer_t sqfs;
-static FILE *input_file = NULL;
-static char *root_becomes = NULL;
+bool dont_skip = false;
+bool keep_time = true;
+bool no_tail_pack = false;
+sqfs_writer_cfg_t cfg;
+char *root_becomes = NULL;
-static void process_args(int argc, char **argv)
+void process_args(int argc, char **argv)
{
bool have_compressor;
int i, ret;
@@ -247,298 +226,3 @@ fail_arg:
fputs("Try `tar2sqfs --help' for more information.\n", stderr);
exit(EXIT_FAILURE);
}
-
-static int write_file(tar_header_decoded_t *hdr, file_info_t *fi,
- sqfs_u64 filesize)
-{
- sqfs_file_t *file;
- int flags;
- int ret;
-
- file = sqfs_get_stdin_file(input_file, hdr->sparse, filesize);
- if (file == NULL) {
- perror("packing files");
- return -1;
- }
-
- flags = 0;
- if (no_tail_pack && filesize > cfg.block_size)
- flags |= SQFS_BLK_DONT_FRAGMENT;
-
- ret = write_data_from_file(hdr->name, sqfs.data,
- (sqfs_inode_generic_t **)&fi->user_ptr,
- file, flags);
- sqfs_destroy(file);
-
- if (ret)
- return -1;
-
- return skip_padding(input_file, hdr->sparse == NULL ?
- filesize : hdr->record_size);
-}
-
-static int copy_xattr(tree_node_t *node, const tar_header_decoded_t *hdr)
-{
- tar_xattr_t *xattr;
- int ret;
-
- ret = sqfs_xattr_writer_begin(sqfs.xwr);
- if (ret) {
- sqfs_perror(hdr->name, "beginning xattr block", ret);
- return -1;
- }
-
- for (xattr = hdr->xattr; xattr != NULL; xattr = xattr->next) {
- if (sqfs_get_xattr_prefix_id(xattr->key) < 0) {
- fprintf(stderr, "%s: squashfs does not "
- "support xattr prefix of %s\n",
- dont_skip ? "ERROR" : "WARNING",
- xattr->key);
-
- if (dont_skip)
- return -1;
- continue;
- }
-
- ret = sqfs_xattr_writer_add(sqfs.xwr, xattr->key, xattr->value,
- xattr->value_len);
- if (ret) {
- sqfs_perror(hdr->name, "storing xattr key-value pair",
- ret);
- return -1;
- }
- }
-
- ret = sqfs_xattr_writer_end(sqfs.xwr, &node->xattr_idx);
- if (ret) {
- sqfs_perror(hdr->name, "completing xattr block", ret);
- return -1;
- }
-
- return 0;
-}
-
-static int create_node_and_repack_data(tar_header_decoded_t *hdr)
-{
- tree_node_t *node;
-
- if (hdr->is_hard_link) {
- node = fstree_add_hard_link(&sqfs.fs, hdr->name,
- hdr->link_target);
- if (node == NULL)
- goto fail_errno;
-
- if (!cfg.quiet) {
- printf("Hard link %s -> %s\n", hdr->name,
- hdr->link_target);
- }
- return 0;
- }
-
- if (!keep_time) {
- hdr->sb.st_mtime = sqfs.fs.defaults.st_mtime;
- }
-
- node = fstree_add_generic(&sqfs.fs, hdr->name,
- &hdr->sb, hdr->link_target);
- if (node == NULL)
- goto fail_errno;
-
- if (!cfg.quiet)
- printf("Packing %s\n", hdr->name);
-
- if (!cfg.no_xattr) {
- if (copy_xattr(node, hdr))
- return -1;
- }
-
- if (S_ISREG(hdr->sb.st_mode)) {
- if (write_file(hdr, &node->data.file, hdr->sb.st_size))
- return -1;
- }
-
- return 0;
-fail_errno:
- perror(hdr->name);
- return -1;
-}
-
-static int set_root_attribs(const tar_header_decoded_t *hdr)
-{
- if (hdr->is_hard_link || !S_ISDIR(hdr->sb.st_mode)) {
- fprintf(stderr, "'%s' is not a directory!\n", hdr->name);
- return -1;
- }
-
- sqfs.fs.root->uid = hdr->sb.st_uid;
- sqfs.fs.root->gid = hdr->sb.st_gid;
- sqfs.fs.root->mode = hdr->sb.st_mode;
-
- if (keep_time)
- sqfs.fs.root->mod_time = hdr->sb.st_mtime;
-
- if (!cfg.no_xattr) {
- if (copy_xattr(sqfs.fs.root, hdr))
- return -1;
- }
-
- return 0;
-}
-
-static int process_tar_ball(void)
-{
- bool skip, is_root, is_prefixed;
- tar_header_decoded_t hdr;
- sqfs_u64 offset, count;
- sparse_map_t *m;
- size_t rootlen;
- int ret;
-
- rootlen = root_becomes == NULL ? 0 : strlen(root_becomes);
-
- for (;;) {
- ret = read_header(input_file, &hdr);
- if (ret > 0)
- break;
- if (ret < 0)
- return -1;
-
- if (hdr.mtime < 0)
- hdr.mtime = 0;
-
- if ((sqfs_u64)hdr.mtime > 0x0FFFFFFFFUL)
- hdr.mtime = 0x0FFFFFFFFUL;
-
- hdr.sb.st_mtime = hdr.mtime;
-
- skip = false;
- is_root = false;
- is_prefixed = true;
-
- if (hdr.name == NULL || canonicalize_name(hdr.name) != 0) {
- fprintf(stderr, "skipping '%s' (invalid name)\n",
- hdr.name);
- skip = true;
- }
-
- if (root_becomes != NULL) {
- if (strncmp(hdr.name, root_becomes, rootlen) == 0) {
- if (hdr.name[rootlen] == '\0') {
- is_root = true;
- } else if (hdr.name[rootlen] != '/') {
- is_prefixed = false;
- }
- } else {
- is_prefixed = false;
- }
-
- if (is_prefixed && !is_root) {
- memmove(hdr.name, hdr.name + rootlen + 1,
- strlen(hdr.name + rootlen + 1) + 1);
- }
-
- if (is_prefixed && hdr.name[0] == '\0') {
- fputs("skipping entry with empty name\n",
- stderr);
- skip = true;
- }
- } else if (hdr.name[0] == '\0') {
- is_root = true;
- }
-
- if (!is_prefixed) {
- clear_header(&hdr);
- continue;
- }
-
- if (is_root) {
- if (set_root_attribs(&hdr))
- goto fail;
- clear_header(&hdr);
- continue;
- }
-
- if (!skip && hdr.unknown_record) {
- fprintf(stderr, "%s: unknown entry type\n", hdr.name);
- skip = true;
- }
-
- if (!skip && hdr.sparse != NULL) {
- offset = hdr.sparse->offset;
- count = 0;
-
- for (m = hdr.sparse; m != NULL; m = m->next) {
- if (m->offset < offset) {
- skip = true;
- break;
- }
- offset = m->offset + m->count;
- count += m->count;
- }
-
- if (count != hdr.record_size)
- skip = true;
-
- if (skip) {
- fprintf(stderr, "%s: broken sparse "
- "file layout\n", hdr.name);
- }
- }
-
- if (skip) {
- if (dont_skip)
- goto fail;
- if (skip_entry(input_file, hdr.sb.st_size))
- goto fail;
-
- clear_header(&hdr);
- continue;
- }
-
- if (create_node_and_repack_data(&hdr))
- goto fail;
-
- clear_header(&hdr);
- }
-
- return 0;
-fail:
- clear_header(&hdr);
- return -1;
-}
-
-int main(int argc, char **argv)
-{
- int status = EXIT_FAILURE;
-
- process_args(argc, argv);
-
-#ifdef _WIN32
- _setmode(_fileno(stdin), _O_BINARY);
- input_file = stdin;
-#else
- input_file = freopen(NULL, "rb", stdin);
-#endif
-
- if (input_file == NULL) {
- perror("changing stdin to binary mode");
- return EXIT_FAILURE;
- }
-
- if (sqfs_writer_init(&sqfs, &cfg))
- return EXIT_FAILURE;
-
- if (process_tar_ball())
- goto out;
-
- if (fstree_post_process(&sqfs.fs))
- goto out;
-
- if (sqfs_writer_finish(&sqfs, &cfg))
- goto out;
-
- status = EXIT_SUCCESS;
-out:
- sqfs_writer_cleanup(&sqfs, status);
- return status;
-}
diff --git a/bin/tar2sqfs/process_tarball.c b/bin/tar2sqfs/process_tarball.c
new file mode 100644
index 0000000..3863014
--- /dev/null
+++ b/bin/tar2sqfs/process_tarball.c
@@ -0,0 +1,272 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * process_tarball.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "tar2sqfs.h"
+
+static int write_file(FILE *input_file, sqfs_writer_t *sqfs,
+ const tar_header_decoded_t *hdr,
+ file_info_t *fi, sqfs_u64 filesize)
+{
+ sqfs_file_t *file;
+ int flags;
+ int ret;
+
+ file = sqfs_get_stdin_file(input_file, hdr->sparse, filesize);
+ if (file == NULL) {
+ perror("packing files");
+ return -1;
+ }
+
+ flags = 0;
+ if (no_tail_pack && filesize > cfg.block_size)
+ flags |= SQFS_BLK_DONT_FRAGMENT;
+
+ ret = write_data_from_file(hdr->name, sqfs->data,
+ (sqfs_inode_generic_t **)&fi->user_ptr,
+ file, flags);
+ sqfs_destroy(file);
+
+ if (ret)
+ return -1;
+
+ return skip_padding(input_file, hdr->sparse == NULL ?
+ filesize : hdr->record_size);
+}
+
+static int copy_xattr(sqfs_writer_t *sqfs, tree_node_t *node,
+ const tar_header_decoded_t *hdr)
+{
+ tar_xattr_t *xattr;
+ int ret;
+
+ ret = sqfs_xattr_writer_begin(sqfs->xwr);
+ if (ret) {
+ sqfs_perror(hdr->name, "beginning xattr block", ret);
+ return -1;
+ }
+
+ for (xattr = hdr->xattr; xattr != NULL; xattr = xattr->next) {
+ if (sqfs_get_xattr_prefix_id(xattr->key) < 0) {
+ fprintf(stderr, "%s: squashfs does not "
+ "support xattr prefix of %s\n",
+ dont_skip ? "ERROR" : "WARNING",
+ xattr->key);
+
+ if (dont_skip)
+ return -1;
+ continue;
+ }
+
+ ret = sqfs_xattr_writer_add(sqfs->xwr, xattr->key, xattr->value,
+ xattr->value_len);
+ if (ret) {
+ sqfs_perror(hdr->name, "storing xattr key-value pair",
+ ret);
+ return -1;
+ }
+ }
+
+ ret = sqfs_xattr_writer_end(sqfs->xwr, &node->xattr_idx);
+ if (ret) {
+ sqfs_perror(hdr->name, "completing xattr block", ret);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int create_node_and_repack_data(FILE *input_file, sqfs_writer_t *sqfs,
+ tar_header_decoded_t *hdr)
+{
+ tree_node_t *node;
+
+ if (hdr->is_hard_link) {
+ node = fstree_add_hard_link(&sqfs->fs, hdr->name,
+ hdr->link_target);
+ if (node == NULL)
+ goto fail_errno;
+
+ if (!cfg.quiet) {
+ printf("Hard link %s -> %s\n", hdr->name,
+ hdr->link_target);
+ }
+ return 0;
+ }
+
+ if (!keep_time) {
+ hdr->sb.st_mtime = sqfs->fs.defaults.st_mtime;
+ }
+
+ node = fstree_add_generic(&sqfs->fs, hdr->name,
+ &hdr->sb, hdr->link_target);
+ if (node == NULL)
+ goto fail_errno;
+
+ if (!cfg.quiet)
+ printf("Packing %s\n", hdr->name);
+
+ if (!cfg.no_xattr) {
+ if (copy_xattr(sqfs, node, hdr))
+ return -1;
+ }
+
+ if (S_ISREG(hdr->sb.st_mode)) {
+ if (write_file(input_file, sqfs, hdr, &node->data.file,
+ hdr->sb.st_size)) {
+ return -1;
+ }
+ }
+
+ return 0;
+fail_errno:
+ perror(hdr->name);
+ return -1;
+}
+
+static int set_root_attribs(sqfs_writer_t *sqfs,
+ const tar_header_decoded_t *hdr)
+{
+ if (hdr->is_hard_link || !S_ISDIR(hdr->sb.st_mode)) {
+ fprintf(stderr, "'%s' is not a directory!\n", hdr->name);
+ return -1;
+ }
+
+ sqfs->fs.root->uid = hdr->sb.st_uid;
+ sqfs->fs.root->gid = hdr->sb.st_gid;
+ sqfs->fs.root->mode = hdr->sb.st_mode;
+
+ if (keep_time)
+ sqfs->fs.root->mod_time = hdr->sb.st_mtime;
+
+ if (!cfg.no_xattr) {
+ if (copy_xattr(sqfs, sqfs->fs.root, hdr))
+ return -1;
+ }
+
+ return 0;
+}
+
+int process_tarball(FILE *input_file, sqfs_writer_t *sqfs)
+{
+ bool skip, is_root, is_prefixed;
+ tar_header_decoded_t hdr;
+ sqfs_u64 offset, count;
+ sparse_map_t *m;
+ size_t rootlen;
+ int ret;
+
+ rootlen = root_becomes == NULL ? 0 : strlen(root_becomes);
+
+ for (;;) {
+ ret = read_header(input_file, &hdr);
+ if (ret > 0)
+ break;
+ if (ret < 0)
+ return -1;
+
+ if (hdr.mtime < 0)
+ hdr.mtime = 0;
+
+ if ((sqfs_u64)hdr.mtime > 0x0FFFFFFFFUL)
+ hdr.mtime = 0x0FFFFFFFFUL;
+
+ hdr.sb.st_mtime = hdr.mtime;
+
+ skip = false;
+ is_root = false;
+ is_prefixed = true;
+
+ if (hdr.name == NULL || canonicalize_name(hdr.name) != 0) {
+ fprintf(stderr, "skipping '%s' (invalid name)\n",
+ hdr.name);
+ skip = true;
+ }
+
+ if (root_becomes != NULL) {
+ if (strncmp(hdr.name, root_becomes, rootlen) == 0) {
+ if (hdr.name[rootlen] == '\0') {
+ is_root = true;
+ } else if (hdr.name[rootlen] != '/') {
+ is_prefixed = false;
+ }
+ } else {
+ is_prefixed = false;
+ }
+
+ if (is_prefixed && !is_root) {
+ memmove(hdr.name, hdr.name + rootlen + 1,
+ strlen(hdr.name + rootlen + 1) + 1);
+ }
+
+ if (is_prefixed && hdr.name[0] == '\0') {
+ fputs("skipping entry with empty name\n",
+ stderr);
+ skip = true;
+ }
+ } else if (hdr.name[0] == '\0') {
+ is_root = true;
+ }
+
+ if (!is_prefixed) {
+ clear_header(&hdr);
+ continue;
+ }
+
+ if (is_root) {
+ if (set_root_attribs(sqfs, &hdr))
+ goto fail;
+ clear_header(&hdr);
+ continue;
+ }
+
+ if (!skip && hdr.unknown_record) {
+ fprintf(stderr, "%s: unknown entry type\n", hdr.name);
+ skip = true;
+ }
+
+ if (!skip && hdr.sparse != NULL) {
+ offset = hdr.sparse->offset;
+ count = 0;
+
+ for (m = hdr.sparse; m != NULL; m = m->next) {
+ if (m->offset < offset) {
+ skip = true;
+ break;
+ }
+ offset = m->offset + m->count;
+ count += m->count;
+ }
+
+ if (count != hdr.record_size)
+ skip = true;
+
+ if (skip) {
+ fprintf(stderr, "%s: broken sparse "
+ "file layout\n", hdr.name);
+ }
+ }
+
+ if (skip) {
+ if (dont_skip)
+ goto fail;
+ if (skip_entry(input_file, hdr.sb.st_size))
+ goto fail;
+
+ clear_header(&hdr);
+ continue;
+ }
+
+ if (create_node_and_repack_data(input_file, sqfs, &hdr))
+ goto fail;
+
+ clear_header(&hdr);
+ }
+
+ return 0;
+fail:
+ clear_header(&hdr);
+ return -1;
+}
diff --git a/bin/tar2sqfs/tar2sqfs.c b/bin/tar2sqfs/tar2sqfs.c
new file mode 100644
index 0000000..ae56e6b
--- /dev/null
+++ b/bin/tar2sqfs/tar2sqfs.c
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * tar2sqfs.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "tar2sqfs.h"
+
+int main(int argc, char **argv)
+{
+ int status = EXIT_FAILURE;
+ FILE *input_file = NULL;
+ sqfs_writer_t sqfs;
+
+ process_args(argc, argv);
+
+#ifdef _WIN32
+ _setmode(_fileno(stdin), _O_BINARY);
+ input_file = stdin;
+#else
+ input_file = freopen(NULL, "rb", stdin);
+#endif
+
+ if (input_file == NULL) {
+ perror("changing stdin to binary mode");
+ return EXIT_FAILURE;
+ }
+
+ memset(&sqfs, 0, sizeof(sqfs));
+ if (sqfs_writer_init(&sqfs, &cfg))
+ return EXIT_FAILURE;
+
+ if (process_tarball(input_file, &sqfs))
+ goto out;
+
+ if (fstree_post_process(&sqfs.fs))
+ goto out;
+
+ if (sqfs_writer_finish(&sqfs, &cfg))
+ goto out;
+
+ status = EXIT_SUCCESS;
+out:
+ sqfs_writer_cleanup(&sqfs, status);
+ return status;
+}
diff --git a/bin/tar2sqfs/tar2sqfs.h b/bin/tar2sqfs/tar2sqfs.h
new file mode 100644
index 0000000..a27a50b
--- /dev/null
+++ b/bin/tar2sqfs/tar2sqfs.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * tar2sqfs.h
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#ifndef TAR2SQFS_H
+#define TAR2SQFS_H
+
+#include "config.h"
+#include "common.h"
+#include "compat.h"
+#include "tar.h"
+
+#include <stdlib.h>
+#include <getopt.h>
+#include <string.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+#ifdef _WIN32
+#include <io.h>
+#endif
+
+/* options.c */
+extern bool dont_skip;
+extern bool keep_time;
+extern bool no_tail_pack;
+extern sqfs_writer_cfg_t cfg;
+extern char *root_becomes;
+
+void process_args(int argc, char **argv);
+
+/* process_tarball.c */
+int process_tarball(FILE *input_file, sqfs_writer_t *sqfs);
+
+#endif /* TAR2SQFS_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 20:23:27 +0000