static void write_dirent(struct filesystem_entry *e)
{
char *name = e->name;
struct jffs2_raw_dirent rd;
struct stat *statbuf = &(e->sb);
static uint32_t version = 0;
memset(&rd, 0, sizeof(rd));
rd.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
rd.nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
rd.totlen = cpu_to_je32(sizeof(rd) + strlen(name));
rd.hdr_crc = cpu_to_je32(crc32(0, &rd,
sizeof(struct jffs2_unknown_node) - 4));
rd.pino = cpu_to_je32((e->parent) ? e->parent->sb.st_ino : 1);
rd.version = cpu_to_je32(version++);
rd.ino = cpu_to_je32(statbuf->st_ino);
rd.mctime = cpu_to_je32(statbuf->st_mtime);
rd.nsize = strlen(name);
rd.type = IFTODT(statbuf->st_mode);
//rd.unused[0] = 0;
//rd.unused[1] = 0;
rd.node_crc = cpu_to_je32(crc32(0, &rd, sizeof(rd) - 8));
rd.name_crc = cpu_to_je32(crc32(0, name, strlen(name)));
pad_block_if_less_than(sizeof(rd) + rd.nsize);
full_write(out_fd, &rd, sizeof(rd));
full_write(out_fd, name, rd.nsize);
padword();
}
void
write_dirent(fsinfo_t *fsopts, fsnode *node)
{
struct chfs_flash_dirent_node fdirent;
char *name;
name = emalloc(strlen(node->name));
memcpy(name, node->name, strlen(node->name));
memset(&fdirent, 0, sizeof(fdirent));
fdirent.magic = htole16(CHFS_FS_MAGIC_BITMASK);
fdirent.type = htole16(CHFS_NODETYPE_DIRENT);
fdirent.length = htole32(CHFS_PAD(sizeof(fdirent) + strlen(name)));
fdirent.hdr_crc = htole32(crc32(0, (uint8_t *)&fdirent,
CHFS_NODE_HDR_SIZE - 4));
fdirent.vno = htole64(node->inode->ino);
if (node->parent != NULL) {
fdirent.pvno = htole64(node->parent->inode->ino);
} else {
fdirent.pvno = htole64(node->inode->ino);
}
fdirent.version = htole64(version++);
fdirent.mctime = 0;
fdirent.nsize = htole32(strlen(name));
fdirent.dtype = htole32(IFTOCHT(node->type & S_IFMT));
fdirent.name_crc = htole32(crc32(0, (uint8_t *)name, fdirent.nsize));
fdirent.node_crc = htole32(crc32(0, (uint8_t *)&fdirent,
sizeof(fdirent) - 4));
pad_block_if_less_than(fsopts, sizeof(fdirent) + fdirent.nsize);
buf_write(fsopts, &fdirent, sizeof(fdirent));
buf_write(fsopts, name, fdirent.nsize);
padword(fsopts);
}
static void output_symlink(const char *target, int len, __u32 ino,
struct stat *statbuf)
{
struct jffs2_raw_inode ri;
memset(&ri, 0, sizeof(ri));
ri.magic = cpu_to_target16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_target16(JFFS2_NODETYPE_INODE);
ri.totlen = cpu_to_target32(sizeof(ri) + len);
ri.hdr_crc = cpu_to_target32(crc32(0, &ri,
sizeof(struct jffs2_unknown_node) - 4));
ri.ino = cpu_to_target32(ino);
ri.mode = cpu_to_target32(statbuf->st_mode);
ri.uid = cpu_to_target32(statbuf->st_uid);
ri.gid = cpu_to_target32(statbuf->st_gid);
ri.atime = cpu_to_target32(statbuf->st_atime);
ri.ctime = cpu_to_target32(statbuf->st_ctime);
ri.mtime = cpu_to_target32(statbuf->st_mtime);
ri.isize = cpu_to_target32(statbuf->st_size);
ri.version = cpu_to_target32(1);
ri.csize = cpu_to_target32(len);
ri.dsize = cpu_to_target32(len);
ri.node_crc = cpu_to_target32(crc32(0, &ri, sizeof(ri) - 8));
ri.data_crc = cpu_to_target32(crc32(0, target, len));
pad_block_if_less_than(sizeof(ri) + len);
full_write(out_fd, &ri, sizeof(ri));
full_write(out_fd, target, len);
padword();
}
void write_xref_to_buff(union jffs2_node_union *node)
{
pad_block_if_less_than(je32_to_cpu(node->r.totlen), JFFS2_SUMMARY_XREF_SIZE);
add_sum_xref_mem(node); /* Add xref summary mem to summary list */
full_write(data_buffer + data_ofs, &(node->r), je32_to_cpu(node->r.totlen));
padword();
}
static void write_dirent(__u32 pino, __u32 ver, __u32 ino, __u32 mctime,
__u32 type, unsigned char *name)
{
struct jffs2_raw_dirent rd;
memset(&rd, 0, sizeof(rd));
rd.magic = cpu_to_target16(JFFS2_MAGIC_BITMASK);
rd.nodetype = cpu_to_target16(JFFS2_NODETYPE_DIRENT);
rd.totlen = cpu_to_target32(sizeof(rd) + strlen(name));
rd.hdr_crc = cpu_to_target32(crc32(0, &rd,
sizeof(struct jffs2_unknown_node) - 4));
rd.pino = cpu_to_target32(pino);
rd.version = cpu_to_target32(ver);
rd.ino = cpu_to_target32(ino);
rd.mctime = cpu_to_target32(mctime);
rd.nsize = strlen(name);
rd.type = type;
//rd.unused[0] = 0;
//rd.unused[1] = 0;
rd.node_crc = cpu_to_target32(crc32(0, &rd, sizeof(rd) - 8));
rd.name_crc = cpu_to_target32(crc32(0, name, strlen(name)));
pad_block_if_less_than(sizeof(rd) + rd.nsize);
full_write(out_fd, &rd, sizeof(rd));
full_write(out_fd, name, rd.nsize);
padword();
}
void write_dirent_to_buff(union jffs2_node_union *node)
{
pad_block_if_less_than(je32_to_cpu (node->d.totlen),JFFS2_SUMMARY_DIRENT_SIZE(node->d.nsize));
add_sum_dirent_mem(node);
full_write(data_buffer + data_ofs, &(node->d), je32_to_cpu (node->d.totlen));
padword();
}
void write_inode_to_buff(union jffs2_node_union *node)
{
pad_block_if_less_than(je32_to_cpu (node->i.totlen),JFFS2_SUMMARY_INODE_SIZE);
add_sum_inode_mem(node); /* Add inode summary mem to summary list */
full_write(data_buffer + data_ofs, &(node->i), je32_to_cpu (node->i.totlen)); /* Write out the inode to inode_buffer */
padword();
}
void
write_vnode(fsinfo_t *fsopts, fsnode *node)
{
struct chfs_flash_vnode fvnode;
memset(&fvnode, 0, sizeof(fvnode));
fvnode.magic = htole16(CHFS_FS_MAGIC_BITMASK);
fvnode.type = htole16(CHFS_NODETYPE_VNODE);
fvnode.length = htole32(CHFS_PAD(sizeof(fvnode)));
fvnode.hdr_crc = htole32(crc32(0, (uint8_t *)&fvnode,
CHFS_NODE_HDR_SIZE - 4));
fvnode.vno = htole64(node->inode->ino);
fvnode.version = htole64(version++);
fvnode.mode = htole32(node->inode->st.st_mode);
fvnode.dn_size = htole32(node->inode->st.st_size);
fvnode.atime = htole32(node->inode->st.st_atime);
fvnode.ctime = htole32(node->inode->st.st_ctime);
fvnode.mtime = htole32(node->inode->st.st_mtime);
fvnode.gid = htole32(node->inode->st.st_uid);
fvnode.uid = htole32(node->inode->st.st_gid);
fvnode.node_crc = htole32(crc32(0, (uint8_t *)&fvnode,
sizeof(fvnode) - 4));
pad_block_if_less_than(fsopts, sizeof(fvnode));
buf_write(fsopts, &fvnode, sizeof(fvnode));
padword(fsopts);
}
void
write_data(fsinfo_t *fsopts, fsnode *node, unsigned char *buf, size_t len,
uint32_t ofs)
{
struct chfs_flash_data_node fdata;
memset(&fdata, 0, sizeof(fdata));
if (len == 0) {
return;
}
pad_block_if_less_than(fsopts, sizeof(fdata) + len);
fdata.magic = htole16(CHFS_FS_MAGIC_BITMASK);
fdata.type = htole16(CHFS_NODETYPE_DATA);
fdata.length = htole32(CHFS_PAD(sizeof(fdata) + len));
fdata.hdr_crc = htole32(crc32(0, (uint8_t *)&fdata,
CHFS_NODE_HDR_SIZE - 4));
fdata.vno = htole64(node->inode->ino);
fdata.data_length = htole32(len);
fdata.offset = htole32(ofs);
fdata.data_crc = htole32(crc32(0, (uint8_t *)buf, len));
fdata.node_crc = htole32(crc32(0,
(uint8_t *)&fdata, sizeof(fdata) - 4));
buf_write(fsopts, &fdata, sizeof(fdata));
buf_write(fsopts, buf, len);
padword(fsopts);
}
static void write_symlink(struct filesystem_entry *e)
{
int len;
struct stat *statbuf;
struct jffs2_raw_inode ri;
statbuf = &(e->sb);
statbuf->st_ino = ++ino;
mkfs_debug_msg("writing symlink '%s' ino=%lu parent_ino=%lu",
e->name, (unsigned long) statbuf->st_ino,
(unsigned long) e->parent->sb.st_ino);
write_dirent(e);
len = strlen(e->link);
if (len > JFFS2_MAX_SYMLINK_LEN) {
error_msg("symlink too large. Truncated to %d chars.",
JFFS2_MAX_SYMLINK_LEN);
len = JFFS2_MAX_SYMLINK_LEN;
}
memset(&ri, 0, sizeof(ri));
ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri.totlen = cpu_to_je32(sizeof(ri) + len);
ri.hdr_crc = cpu_to_je32(crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.ino = cpu_to_je32(statbuf->st_ino);
ri.mode = cpu_to_jemode(statbuf->st_mode);
ri.uid = cpu_to_je16(statbuf->st_uid);
ri.gid = cpu_to_je16(statbuf->st_gid);
ri.atime = cpu_to_je32(statbuf->st_atime);
ri.ctime = cpu_to_je32(statbuf->st_ctime);
ri.mtime = cpu_to_je32(statbuf->st_mtime);
ri.isize = cpu_to_je32(statbuf->st_size);
ri.version = cpu_to_je32(1);
ri.csize = cpu_to_je32(len);
ri.dsize = cpu_to_je32(len);
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
ri.data_crc = cpu_to_je32(crc32(0, e->link, len));
pad_block_if_less_than(sizeof(ri) + len);
full_write(out_fd, &ri, sizeof(ri));
full_write(out_fd, e->link, len);
padword();
}
static xattr_entry_t *create_xattr_entry(int xprefix, char *xname, char *xvalue, int value_len)
{
xattr_entry_t *xe;
struct jffs2_raw_xattr rx;
int name_len;
/* create xattr entry */
name_len = strlen(xname);
xe = xcalloc(1, sizeof(xattr_entry_t) + name_len + 1 + value_len);
xe->next = NULL;
xe->xid = ++highest_xid;
xe->xprefix = xprefix;
xe->xname = ((char *)xe) + sizeof(xattr_entry_t);
xe->xvalue = xe->xname + name_len + 1;
xe->name_len = name_len;
xe->value_len = value_len;
strcpy(xe->xname, xname);
memcpy(xe->xvalue, xvalue, value_len);
/* write xattr node */
memset(&rx, 0, sizeof(rx));
rx.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
rx.nodetype = cpu_to_je16(JFFS2_NODETYPE_XATTR);
rx.totlen = cpu_to_je32(PAD(sizeof(rx) + xe->name_len + 1 + xe->value_len));
rx.hdr_crc = cpu_to_je32(crc32(0, &rx, sizeof(struct jffs2_unknown_node) - 4));
rx.xid = cpu_to_je32(xe->xid);
rx.version = cpu_to_je32(1); /* initial version */
rx.xprefix = xprefix;
rx.name_len = xe->name_len;
rx.value_len = cpu_to_je16(xe->value_len);
rx.data_crc = cpu_to_je32(crc32(0, xe->xname, xe->name_len + 1 + xe->value_len));
rx.node_crc = cpu_to_je32(crc32(0, &rx, sizeof(rx) - 4));
pad_block_if_less_than(sizeof(rx) + xe->name_len + 1 + xe->value_len);
full_write(out_fd, &rx, sizeof(rx));
full_write(out_fd, xe->xname, xe->name_len + 1 + xe->value_len);
padword();
return xe;
}
static void write_special_file(struct filesystem_entry *e)
{
jint16_t kdev;
struct stat *statbuf;
struct jffs2_raw_inode ri;
statbuf = &(e->sb);
statbuf->st_ino = ++ino;
write_dirent(e);
kdev = cpu_to_je16((major(statbuf->st_rdev) << 8) +
minor(statbuf->st_rdev));
memset(&ri, 0, sizeof(ri));
ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri.totlen = cpu_to_je32(sizeof(ri) + sizeof(kdev));
ri.hdr_crc = cpu_to_je32(crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.ino = cpu_to_je32(statbuf->st_ino);
ri.mode = cpu_to_jemode(statbuf->st_mode);
ri.uid = cpu_to_je16(statbuf->st_uid);
ri.gid = cpu_to_je16(statbuf->st_gid);
ri.atime = cpu_to_je32(statbuf->st_atime);
ri.ctime = cpu_to_je32(statbuf->st_ctime);
ri.mtime = cpu_to_je32(statbuf->st_mtime);
ri.isize = cpu_to_je32(statbuf->st_size);
ri.version = cpu_to_je32(1);
ri.csize = cpu_to_je32(sizeof(kdev));
ri.dsize = cpu_to_je32(sizeof(kdev));
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
ri.data_crc = cpu_to_je32(crc32(0, &kdev, sizeof(kdev)));
pad_block_if_less_than(sizeof(ri) + sizeof(kdev));
full_write(out_fd, &ri, sizeof(ri));
full_write(out_fd, &kdev, sizeof(kdev));
padword();
}
static void write_pipe(struct filesystem_entry *e)
{
struct stat *statbuf;
struct jffs2_raw_inode ri;
statbuf = &(e->sb);
statbuf->st_ino = ++ino;
if (S_ISDIR(statbuf->st_mode)) {
mkfs_debug_msg("writing dir '%s' ino=%lu parent_ino=%lu",
e->name, (unsigned long) statbuf->st_ino,
(unsigned long) (e->parent) ? e->parent->sb. st_ino : 1);
}
write_dirent(e);
memset(&ri, 0, sizeof(ri));
ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri.totlen = cpu_to_je32(sizeof(ri));
ri.hdr_crc = cpu_to_je32(crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.ino = cpu_to_je32(statbuf->st_ino);
ri.mode = cpu_to_jemode(statbuf->st_mode);
ri.uid = cpu_to_je16(statbuf->st_uid);
ri.gid = cpu_to_je16(statbuf->st_gid);
ri.atime = cpu_to_je32(statbuf->st_atime);
ri.ctime = cpu_to_je32(statbuf->st_ctime);
ri.mtime = cpu_to_je32(statbuf->st_mtime);
ri.isize = cpu_to_je32(0);
ri.version = cpu_to_je32(1);
ri.csize = cpu_to_je32(0);
ri.dsize = cpu_to_je32(0);
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
ri.data_crc = cpu_to_je32(0);
pad_block_if_less_than(sizeof(ri));
full_write(out_fd, &ri, sizeof(ri));
padword();
}
static void output_dev(__u32 ino, struct stat *statbuf)
{
struct jffs2_raw_inode ri;
/* FIXME: I am using illicit insider knowledge of kernel
* major/minor representation... */
unsigned short kdev;
kdev = cpu_to_target16((major(statbuf->st_rdev) << 8) +
minor(statbuf->st_rdev));
memset(&ri, 0, sizeof(ri));
ri.magic = cpu_to_target16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_target16(JFFS2_NODETYPE_INODE);
ri.totlen = cpu_to_target32(sizeof(ri) + sizeof(kdev));
ri.hdr_crc = cpu_to_target32(crc32(0, &ri,
sizeof(struct jffs2_unknown_node) - 4));
ri.ino = cpu_to_target32(ino);
ri.mode = cpu_to_target32(statbuf->st_mode);
ri.uid = cpu_to_target32(statbuf->st_uid);
ri.gid = cpu_to_target32(statbuf->st_gid);
ri.atime = cpu_to_target32(statbuf->st_atime);
ri.ctime = cpu_to_target32(statbuf->st_ctime);
ri.mtime = cpu_to_target32(statbuf->st_mtime);
ri.isize = cpu_to_target32(statbuf->st_size);
ri.version = cpu_to_target32(1);
ri.csize = cpu_to_target32(sizeof(kdev));
ri.dsize = cpu_to_target32(sizeof(kdev));
ri.node_crc = cpu_to_target32(crc32(0, &ri, sizeof(ri) - 8));
ri.data_crc = cpu_to_target32(crc32(0, &kdev, sizeof(kdev)));
pad_block_if_less_than(sizeof(ri) + sizeof(kdev));
full_write(out_fd, &ri, sizeof(ri));
full_write(out_fd, &kdev, sizeof(kdev));
padword();
}
static void output_reg(int fd, __u32 ino, struct stat *statbuf)
{
unsigned char *buf, *cbuf, *wbuf;
struct jffs2_raw_inode ri;
unsigned int version, offset;
int len;
buf = xmalloc(page_size);
cbuf = xmalloc(page_size);
version = 0;
offset = 0;
memset(&ri, 0, sizeof(ri));
ri.magic = cpu_to_target16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_target16(JFFS2_NODETYPE_INODE);
ri.ino = cpu_to_target32(ino);
ri.mode = cpu_to_target32(statbuf->st_mode);
ri.uid = cpu_to_target32(statbuf->st_uid);
ri.gid = cpu_to_target32(statbuf->st_gid);
ri.atime = cpu_to_target32(statbuf->st_atime);
ri.ctime = cpu_to_target32(statbuf->st_ctime);
ri.mtime = cpu_to_target32(statbuf->st_mtime);
ri.isize = cpu_to_target32(statbuf->st_size);
while ((len = read(fd, buf, page_size))) {
unsigned char *tbuf = buf;
if (len < 0) {
perror_msg_and_die("read");
}
while (len) {
__u32 dsize, space;
pad_block_if_less_than(sizeof(ri) + JFFS2_MIN_DATA_LEN);
dsize = len;
space = erase_block_size - (out_ofs % erase_block_size) - sizeof(ri);
if (space > dsize)
space = dsize;
ri.compr = jffs2_compress(tbuf, cbuf, &dsize, &space);
if (ri.compr) {
wbuf = cbuf;
} else {
wbuf = tbuf;
dsize = space;
}
ri.totlen = cpu_to_target32(sizeof(ri) + space);
ri.hdr_crc = cpu_to_target32(crc32(0, &ri,
sizeof(struct jffs2_unknown_node) - 4));
version++;
ri.version = cpu_to_target32(version);
ri.offset = cpu_to_target32(offset);
ri.csize = cpu_to_target32(space);
ri.dsize = cpu_to_target32(dsize);
ri.node_crc = cpu_to_target32(crc32(0, &ri, sizeof(ri) - 8));
ri.data_crc = cpu_to_target32(crc32(0, wbuf, space));
full_write(out_fd, &ri, sizeof(ri));
full_write(out_fd, wbuf, space);
padword();
tbuf += dsize;
len -= dsize;
offset += dsize;
}
}
if (!ri.version) {
/* Was empty file */
version++;
ri.version = cpu_to_target32(version);
ri.totlen = cpu_to_target32(sizeof(ri));
ri.hdr_crc = cpu_to_target32(crc32(0, &ri,
sizeof(struct jffs2_unknown_node) - 4));
ri.csize = cpu_to_target32(0);
ri.dsize = cpu_to_target32(0);
ri.node_crc = cpu_to_target32(crc32(0, &ri, sizeof(ri) - 8));
full_write(out_fd, &ri, sizeof(ri));
padword();
}
free(buf);
free(cbuf);
close(fd);
}
static void write_xattr_entry(struct filesystem_entry *e)
{
struct jffs2_raw_xref ref;
struct xattr_entry *xe;
char xlist[XATTR_BUFFER_SIZE], xvalue[XATTR_BUFFER_SIZE];
char *xname, *prefix_str;
int i, xprefix, prefix_len;
int list_sz, offset, name_len, value_len;
if (!enable_xattr)
return;
list_sz = llistxattr(e->hostname, xlist, XATTR_BUFFER_SIZE);
if (list_sz < 0) {
if (verbose)
printf("llistxattr('%s') = %d : %s\n",
e->hostname, errno, strerror(errno));
return;
}
for (offset = 0; offset < list_sz; offset += name_len) {
xname = xlist + offset;
name_len = strlen(xname) + 1;
for (i = 0; (xprefix = xprefix_tbl[i].xprefix); i++) {
prefix_str = xprefix_tbl[i].string;
prefix_len = xprefix_tbl[i].length;
if (prefix_str[prefix_len - 1] == '.') {
if (!strncmp(xname, prefix_str, prefix_len - 1))
break;
} else {
if (!strcmp(xname, prefix_str))
break;
}
}
if (!xprefix) {
if (verbose)
printf("%s: xattr '%s' is not supported.\n",
e->hostname, xname);
continue;
}
if ((enable_xattr & (1 << xprefix)) == 0)
continue;
value_len = lgetxattr(e->hostname, xname, xvalue, XATTR_BUFFER_SIZE);
if (value_len < 0) {
if (verbose)
printf("lgetxattr('%s', '%s') = %d : %s\n",
e->hostname, xname, errno, strerror(errno));
continue;
}
xe = find_xattr_entry(xprefix, xname + prefix_len, xvalue, value_len);
if (!xe) {
if (verbose)
printf("%s : xattr '%s' was ignored.\n",
e->hostname, xname);
continue;
}
memset(&ref, 0, sizeof(ref));
ref.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ref.nodetype = cpu_to_je16(JFFS2_NODETYPE_XREF);
ref.totlen = cpu_to_je32(sizeof(ref));
ref.hdr_crc = cpu_to_je32(crc32(0, &ref, sizeof(struct jffs2_unknown_node) - 4));
ref.ino = cpu_to_je32(e->sb.st_ino);
ref.xid = cpu_to_je32(xe->xid);
ref.xseqno = cpu_to_je32(highest_xseqno += 2);
ref.node_crc = cpu_to_je32(crc32(0, &ref, sizeof(ref) - 4));
pad_block_if_less_than(sizeof(ref));
full_write(out_fd, &ref, sizeof(ref));
padword();
}
}
static unsigned int write_regular_file(struct filesystem_entry *e)
{
int fd, len;
uint32_t ver;
unsigned int offset;
unsigned char *buf, *cbuf, *wbuf;
struct jffs2_raw_inode ri;
struct stat *statbuf;
unsigned int totcomp = 0;
statbuf = &(e->sb);
if (statbuf->st_size >= JFFS2_MAX_FILE_SIZE) {
error_msg("Skipping file \"%s\" too large.", e->path);
return -1;
}
fd = open(e->hostname, O_RDONLY);
if (fd == -1) {
perror_msg_and_die("%s: open file", e->hostname);
}
statbuf->st_ino = ++ino;
mkfs_debug_msg("writing file '%s' ino=%lu parent_ino=%lu",
e->name, (unsigned long) statbuf->st_ino,
(unsigned long) e->parent->sb.st_ino);
write_dirent(e);
buf = xmalloc(page_size);
cbuf = NULL;
ver = 0;
offset = 0;
memset(&ri, 0, sizeof(ri));
ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri.nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri.ino = cpu_to_je32(statbuf->st_ino);
ri.mode = cpu_to_jemode(statbuf->st_mode);
ri.uid = cpu_to_je16(statbuf->st_uid);
ri.gid = cpu_to_je16(statbuf->st_gid);
ri.atime = cpu_to_je32(statbuf->st_atime);
ri.ctime = cpu_to_je32(statbuf->st_ctime);
ri.mtime = cpu_to_je32(statbuf->st_mtime);
ri.isize = cpu_to_je32(statbuf->st_size);
while ((len = read(fd, buf, page_size))) {
unsigned char *tbuf = buf;
if (len < 0) {
perror_msg_and_die("read");
}
while (len) {
uint32_t dsize, space;
uint16_t compression;
pad_block_if_less_than(sizeof(ri) + JFFS2_MIN_DATA_LEN);
dsize = len;
space =
erase_block_size - (out_ofs % erase_block_size) -
sizeof(ri);
if (space > dsize)
space = dsize;
compression = jffs2_compress(tbuf, &cbuf, &dsize, &space);
ri.compr = compression & 0xff;
ri.usercompr = (compression >> 8) & 0xff;
if (ri.compr) {
wbuf = cbuf;
} else {
wbuf = tbuf;
dsize = space;
}
ri.totlen = cpu_to_je32(sizeof(ri) + space);
ri.hdr_crc = cpu_to_je32(crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.version = cpu_to_je32(++ver);
ri.offset = cpu_to_je32(offset);
ri.csize = cpu_to_je32(space);
ri.dsize = cpu_to_je32(dsize);
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
ri.data_crc = cpu_to_je32(crc32(0, wbuf, space));
full_write(out_fd, &ri, sizeof(ri));
totcomp += sizeof(ri);
full_write(out_fd, wbuf, space);
totcomp += space;
padword();
if (tbuf != cbuf) {
free(cbuf);
cbuf = NULL;
}
tbuf += dsize;
len -= dsize;
offset += dsize;
}
}
if (!je32_to_cpu(ri.version)) {
/* Was empty file */
pad_block_if_less_than(sizeof(ri));
ri.version = cpu_to_je32(++ver);
ri.totlen = cpu_to_je32(sizeof(ri));
ri.hdr_crc = cpu_to_je32(crc32(0,
&ri, sizeof(struct jffs2_unknown_node) - 4));
ri.csize = cpu_to_je32(0);
ri.dsize = cpu_to_je32(0);
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri) - 8));
full_write(out_fd, &ri, sizeof(ri));
padword();
}
free(buf);
close(fd);
return totcomp;
}