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author | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2023-01-31 11:21:30 +0100 |
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committer | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2023-01-31 13:51:49 +0100 |
commit | cdccc69c62579b0c13b35fad0728079652b8f3c9 (patch) | |
tree | 9fa54c710f73c5e08a9c8466e7a712eb63ee07ac /lib/sqfs/write_inode.c | |
parent | 2182129c8f359c4fa1390eaba7a65b595ccd4182 (diff) |
Move library source into src sub-directory
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/sqfs/write_inode.c')
-rw-r--r-- | lib/sqfs/write_inode.c | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/lib/sqfs/write_inode.c b/lib/sqfs/write_inode.c deleted file mode 100644 index 118b713..0000000 --- a/lib/sqfs/write_inode.c +++ /dev/null @@ -1,220 +0,0 @@ -/* SPDX-License-Identifier: LGPL-3.0-or-later */ -/* - * write_inode.c - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#define SQFS_BUILDING_DLL -#include "config.h" - -#include "sqfs/meta_writer.h" -#include "sqfs/error.h" -#include "sqfs/inode.h" -#include "sqfs/dir.h" -#include "compat.h" - -#include <string.h> -#include <stdlib.h> - -#if defined(_WIN32) || defined(__WINDOWS__) -# include <malloc.h> -# ifdef _MSC_VER -# define alloca _alloca -# endif -#elif defined(HAVE_ALLOCA_H) -# include <alloca.h> -#endif - -static int write_block_sizes(sqfs_meta_writer_t *ir, - const sqfs_inode_generic_t *n) -{ - sqfs_u32 *sizes; - size_t i; - - if (n->payload_bytes_used < sizeof(sizes[0])) - return 0; - - if ((n->payload_bytes_used % sizeof(sizes[0])) != 0) - return SQFS_ERROR_CORRUPTED; - - sizes = alloca(n->payload_bytes_used); - - for (i = 0; i < (n->payload_bytes_used / sizeof(sizes[0])); ++i) - sizes[i] = htole32(n->extra[i]); - - return sqfs_meta_writer_append(ir, sizes, n->payload_bytes_used); -} - -static int write_dir_index(sqfs_meta_writer_t *ir, const sqfs_u8 *data, - size_t count) -{ - sqfs_dir_index_t ent; - size_t len; - int err; - - while (count > sizeof(ent)) { - memcpy(&ent, data, sizeof(ent)); - data += sizeof(ent); - count -= sizeof(ent); - len = ent.size + 1; - - if (len > count) - return SQFS_ERROR_CORRUPTED; - - ent.start_block = htole32(ent.start_block); - ent.index = htole32(ent.index); - ent.size = htole32(ent.size); - - err = sqfs_meta_writer_append(ir, &ent, sizeof(ent)); - if (err) - return err; - - err = sqfs_meta_writer_append(ir, data, len); - if (err) - return err; - - data += len; - count -= len; - } - - return 0; -} - -int sqfs_meta_writer_write_inode(sqfs_meta_writer_t *ir, - const sqfs_inode_generic_t *n) -{ - sqfs_inode_t base; - int ret; - - base.type = htole16(n->base.type); - base.mode = htole16(n->base.mode & ~SQFS_INODE_MODE_MASK); - base.uid_idx = htole16(n->base.uid_idx); - base.gid_idx = htole16(n->base.gid_idx); - base.mod_time = htole32(n->base.mod_time); - base.inode_number = htole32(n->base.inode_number); - - ret = sqfs_meta_writer_append(ir, &base, sizeof(base)); - if (ret) - return ret; - - switch (n->base.type) { - case SQFS_INODE_DIR: { - sqfs_inode_dir_t dir = { - .start_block = htole32(n->data.dir.start_block), - .nlink = htole32(n->data.dir.nlink), - .size = htole16(n->data.dir.size), - .offset = htole16(n->data.dir.offset), - .parent_inode = htole32(n->data.dir.parent_inode), - }; - return sqfs_meta_writer_append(ir, &dir, sizeof(dir)); - } - case SQFS_INODE_FILE: { - sqfs_inode_file_t file = { - .blocks_start = htole32(n->data.file.blocks_start), - .fragment_index = htole32(n->data.file.fragment_index), - .fragment_offset = - htole32(n->data.file.fragment_offset), - .file_size = htole32(n->data.file.file_size), - }; - ret = sqfs_meta_writer_append(ir, &file, sizeof(file)); - if (ret) - return ret; - return write_block_sizes(ir, n); - } - case SQFS_INODE_SLINK: { - sqfs_inode_slink_t slink = { - .nlink = htole32(n->data.slink.nlink), - .target_size = htole32(n->data.slink.target_size), - }; - ret = sqfs_meta_writer_append(ir, &slink, sizeof(slink)); - if (ret) - return ret; - return sqfs_meta_writer_append(ir, n->extra, - n->data.slink.target_size); - } - case SQFS_INODE_BDEV: - case SQFS_INODE_CDEV: { - sqfs_inode_dev_t dev = { - .nlink = htole32(n->data.dev.nlink), - .devno = htole32(n->data.dev.devno), - }; - return sqfs_meta_writer_append(ir, &dev, sizeof(dev)); - } - case SQFS_INODE_FIFO: - case SQFS_INODE_SOCKET: { - sqfs_inode_ipc_t ipc = { - .nlink = htole32(n->data.ipc.nlink), - }; - return sqfs_meta_writer_append(ir, &ipc, sizeof(ipc)); - } - case SQFS_INODE_EXT_DIR: { - sqfs_inode_dir_ext_t dir = { - .nlink = htole32(n->data.dir_ext.nlink), - .size = htole32(n->data.dir_ext.size), - .start_block = htole32(n->data.dir_ext.start_block), - .parent_inode = htole32(n->data.dir_ext.parent_inode), - .inodex_count = htole16(n->data.dir_ext.inodex_count), - .offset = htole16(n->data.dir_ext.offset), - .xattr_idx = htole32(n->data.dir_ext.xattr_idx), - }; - ret = sqfs_meta_writer_append(ir, &dir, sizeof(dir)); - if (ret) - return ret; - return write_dir_index(ir, (const sqfs_u8 *)n->extra, - n->payload_bytes_used); - } - case SQFS_INODE_EXT_FILE: { - sqfs_inode_file_ext_t file = { - .blocks_start = htole64(n->data.file_ext.blocks_start), - .file_size = htole64(n->data.file_ext.file_size), - .sparse = htole64(n->data.file_ext.sparse), - .nlink = htole32(n->data.file_ext.nlink), - .fragment_idx = htole32(n->data.file_ext.fragment_idx), - .fragment_offset = - htole32(n->data.file_ext.fragment_offset), - .xattr_idx = htole32(n->data.file_ext.xattr_idx), - }; - ret = sqfs_meta_writer_append(ir, &file, sizeof(file)); - if (ret) - return ret; - return write_block_sizes(ir, n); - } - case SQFS_INODE_EXT_SLINK: { - sqfs_inode_slink_t slink = { - .nlink = htole32(n->data.slink_ext.nlink), - .target_size = htole32(n->data.slink_ext.target_size), - }; - sqfs_u32 xattr = htole32(n->data.slink_ext.xattr_idx); - - ret = sqfs_meta_writer_append(ir, &slink, sizeof(slink)); - if (ret) - return ret; - ret = sqfs_meta_writer_append(ir, n->extra, - n->data.slink_ext.target_size); - if (ret) - return ret; - return sqfs_meta_writer_append(ir, &xattr, sizeof(xattr)); - } - case SQFS_INODE_EXT_BDEV: - case SQFS_INODE_EXT_CDEV: { - sqfs_inode_dev_ext_t dev = { - .nlink = htole32(n->data.dev_ext.nlink), - .devno = htole32(n->data.dev_ext.devno), - .xattr_idx = htole32(n->data.dev_ext.xattr_idx), - }; - return sqfs_meta_writer_append(ir, &dev, sizeof(dev)); - } - case SQFS_INODE_EXT_FIFO: - case SQFS_INODE_EXT_SOCKET: { - sqfs_inode_ipc_ext_t ipc = { - .nlink = htole32(n->data.ipc_ext.nlink), - .xattr_idx = htole32(n->data.ipc_ext.xattr_idx), - }; - return sqfs_meta_writer_append(ir, &ipc, sizeof(ipc)); - } - default: - break; - } - - return SQFS_ERROR_UNSUPPORTED; -} |