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/* SPDX-License-Identifier: GPL-3.0-or-later */
#include "mksquashfs.h"
#include "util.h"
static void print_tree(int level, tree_node_t *node)
{
tree_node_t *n;
int i;
for (i = 1; i < level; ++i) {
fputs("| ", stdout);
}
if (level)
fputs("+- ", stdout);
if (S_ISDIR(node->mode)) {
fprintf(stdout, "%s/ (%u, %u, 0%o)\n", node->name,
node->uid, node->gid, node->mode & 07777);
for (n = node->data.dir->children; n != NULL; n = n->next) {
print_tree(level + 1, n);
}
if (node->data.dir->children != NULL) {
for (i = 0; i < level; ++i)
fputs("| ", stdout);
if (level)
fputc('\n', stdout);
}
} else {
fprintf(stdout, "%s (%u, %u, 0%o)\n", node->name,
node->uid, node->gid, node->mode & 07777);
}
}
static int padd_file(sqfs_info_t *info)
{
size_t padd_sz = info->super.bytes_used % info->opt.devblksz;
uint8_t *buffer;
ssize_t ret;
if (padd_sz == 0)
return 0;
padd_sz = info->opt.devblksz - padd_sz;
buffer = calloc(1, padd_sz);
if (buffer == NULL) {
perror("padding output file to block size");
return -1;
}
ret = write_retry(info->outfd, buffer, padd_sz);
if (ret < 0) {
perror("Error padding squashfs image to page size");
free(buffer);
return -1;
}
if ((size_t)ret < padd_sz) {
fputs("Truncated write trying to padd squashfs image\n",
stderr);
return -1;
}
free(buffer);
return 0;
}
int main(int argc, char **argv)
{
int status = EXIT_FAILURE;
sqfs_info_t info;
memset(&info, 0, sizeof(info));
process_command_line(&info.opt, argc, argv);
if (sqfs_super_init(&info.super, info.opt.blksz, info.opt.def_mtime,
info.opt.compressor)) {
return EXIT_FAILURE;
}
info.outfd = open(info.opt.outfile, info.opt.outmode, 0644);
if (info.outfd < 0) {
perror(info.opt.outfile);
return EXIT_FAILURE;
}
if (sqfs_super_write(&info.super, info.outfd))
goto out_outfd;
if (fstree_init(&info.fs, info.opt.blksz, info.opt.def_mtime,
info.opt.def_mode, info.opt.def_uid,
info.opt.def_gid)) {
goto out_outfd;
}
if (fstree_from_file(&info.fs, info.opt.infile))
goto out_fstree;
fstree_sort(&info.fs);
print_tree(0, info.fs.root);
info.cmp = compressor_create(info.super.compression_id, true,
info.super.block_size);
if (info.cmp == NULL) {
fputs("Error creating compressor\n", stderr);
goto out_outfd;
}
if (write_data_to_image(&info))
goto out_cmp;
if (sqfs_super_write(&info.super, info.outfd))
goto out_cmp;
if (padd_file(&info))
goto out_cmp;
status = EXIT_SUCCESS;
out_cmp:
info.cmp->destroy(info.cmp);
out_fstree:
fstree_cleanup(&info.fs);
out_outfd:
close(info.outfd);
return status;
}
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