Cleanup: add sqfs_* prefix to meta writer

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

9 files changed, 115 insertions, 101 deletions

diff --git a/include/sqfs/dir.h b/include/sqfs/dir.h
index 818ca87..22f8a57 100644
--- a/include/sqfs/dir.h
+++ b/include/sqfs/dir.h
@@ -50,7 +50,7 @@ int meta_reader_read_dir_header(meta_reader_t *m, sqfs_dir_header_t *hdr);
    The function internally prints to stderr on failure */
 sqfs_dir_entry_t *meta_reader_read_dir_ent(meta_reader_t *m);
 
-sqfs_dir_writer_t *sqfs_dir_writer_create(meta_writer_t *dm);
+sqfs_dir_writer_t *sqfs_dir_writer_create(sqfs_meta_writer_t *dm);
 
 void sqfs_dir_writer_destroy(sqfs_dir_writer_t *writer);
 
@@ -69,7 +69,7 @@ uint64_t sqfs_dir_writer_get_dir_reference(sqfs_dir_writer_t *writer);
 size_t sqfs_dir_writer_get_index_size(sqfs_dir_writer_t *writer);
 
 int sqfs_dir_writer_write_index(sqfs_dir_writer_t *writer,
-				meta_writer_t *im);
+				sqfs_meta_writer_t *im);
 
 #ifdef __cplusplus
 }
diff --git a/include/sqfs/inode.h b/include/sqfs/inode.h
index c72f3c2..20c8fa2 100644
--- a/include/sqfs/inode.h
+++ b/include/sqfs/inode.h
@@ -143,7 +143,8 @@ sqfs_inode_generic_t *meta_reader_read_inode(meta_reader_t *ir,
 					     uint64_t block_start,
 					     size_t offset);
 
-int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n);
+int sqfs_meta_writer_write_inode(sqfs_meta_writer_t *iw,
+				 sqfs_inode_generic_t *n);
 
 #ifdef __cplusplus
 }
diff --git a/include/sqfs/meta_writer.h b/include/sqfs/meta_writer.h
index e91c1e9..a155f3e 100644
--- a/include/sqfs/meta_writer.h
+++ b/include/sqfs/meta_writer.h
@@ -4,8 +4,8 @@
  *
  * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
  */
-#ifndef META_WRITER_H
-#define META_WRITER_H
+#ifndef SQFS_META_WRITER_H
+#define SQFS_META_WRITER_H
 
 #include "config.h"
 
@@ -13,7 +13,7 @@
 #include "sqfs/id_table.h"
 #include "sqfs/data.h"
 
-typedef struct meta_writer_t meta_writer_t;
+typedef struct sqfs_meta_writer_t sqfs_meta_writer_t;
 
 #ifdef __cplusplus
 extern "C" {
@@ -24,31 +24,34 @@ extern "C" {
    If keep_in_mem is true, the blocks are collected in memory and must
    be explicitly flushed to disk using meta_write_write_to_file.
 */
-meta_writer_t *meta_writer_create(int fd, compressor_t *cmp, bool keep_in_mem);
+sqfs_meta_writer_t *sqfs_meta_writer_create(int fd, compressor_t *cmp,
+					    bool keep_in_mem);
 
-void meta_writer_destroy(meta_writer_t *m);
+void sqfs_meta_writer_destroy(sqfs_meta_writer_t *m);
 
 /* Compress and flush the currently unfinished block to disk. Returns 0 on
    success, internally prints error message to stderr on failure */
-int meta_writer_flush(meta_writer_t *m);
+int sqfs_meta_writer_flush(sqfs_meta_writer_t *m);
 
 /* Returns 0 on success. Prints error message to stderr on failure. */
-int meta_writer_append(meta_writer_t *m, const void *data, size_t size);
+int sqfs_meta_writer_append(sqfs_meta_writer_t *m, const void *data,
+			    size_t size);
 
 /* Query the current block start position and offset within the block */
-void meta_writer_get_position(const meta_writer_t *m, uint64_t *block_start,
-			      uint32_t *offset);
+void sqfs_meta_writer_get_position(const sqfs_meta_writer_t *m,
+				   uint64_t *block_start,
+				   uint32_t *offset);
 
 /* Reset all internal state, including the current block start position. */
-void meta_writer_reset(meta_writer_t *m);
+void sqfs_meta_writer_reset(sqfs_meta_writer_t *m);
 
 /* If created with keep_in_mem true, write the collected blocks to disk.
    Does not flush the current block. Writes error messages to stderr and
    returns non-zero on failure. */
-int meta_write_write_to_file(meta_writer_t *m);
+int sqfs_meta_write_write_to_file(sqfs_meta_writer_t *m);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /* META_WRITER_H */
+#endif /* SQFS_META_WRITER_H */
diff --git a/lib/sqfs/dir_writer.c b/lib/sqfs/dir_writer.c
index 3ef3bc7..2fb655a 100644
--- a/lib/sqfs/dir_writer.c
+++ b/lib/sqfs/dir_writer.c
@@ -43,7 +43,7 @@ struct sqfs_dir_writer_t {
 	uint64_t dir_ref;
 	size_t dir_size;
 	size_t idx_size;
-	meta_writer_t *dm;
+	sqfs_meta_writer_t *dm;
 };
 
 static int get_type(mode_t mode)
@@ -85,7 +85,7 @@ static void writer_reset(sqfs_dir_writer_t *writer)
 	writer->idx_size = 0;
 }
 
-sqfs_dir_writer_t *sqfs_dir_writer_create(meta_writer_t *dm)
+sqfs_dir_writer_t *sqfs_dir_writer_create(sqfs_meta_writer_t *dm)
 {
 	sqfs_dir_writer_t *writer = calloc(1, sizeof(*writer));
 
@@ -111,7 +111,7 @@ int sqfs_dir_writer_begin(sqfs_dir_writer_t *writer)
 
 	writer_reset(writer);
 
-	meta_writer_get_position(writer->dm, &block, &offset);
+	sqfs_meta_writer_get_position(writer->dm, &block, &offset);
 	writer->dir_ref = (block << 16) | offset;
 	return 0;
 }
@@ -185,7 +185,7 @@ static int add_header(sqfs_dir_writer_t *writer, size_t count,
 	hdr.start_block = htole32(ref->inode_ref >> 16);
 	hdr.inode_number = htole32(ref->inode_num);
 
-	if (meta_writer_append(writer->dm, &hdr, sizeof(hdr)))
+	if (sqfs_meta_writer_append(writer->dm, &hdr, sizeof(hdr)))
 		return -1;
 
 	idx = calloc(1, sizeof(*idx));
@@ -220,7 +220,7 @@ int sqfs_dir_writer_end(sqfs_dir_writer_t *writer)
 	uint64_t block;
 
 	for (it = writer->list; it != NULL; ) {
-		meta_writer_get_position(writer->dm, &block, &offset);
+		sqfs_meta_writer_get_position(writer->dm, &block, &offset);
 		count = get_conseq_entry_count(offset, it);
 
 		if (add_header(writer, count, it, block))
@@ -237,11 +237,15 @@ int sqfs_dir_writer_end(sqfs_dir_writer_t *writer)
 			diff_u16 = (uint16_t *)&ent.inode_diff;
 			*diff_u16 = htole16(*diff_u16);
 
-			if (meta_writer_append(writer->dm, &ent, sizeof(ent)))
+			if (sqfs_meta_writer_append(writer->dm, &ent,
+						    sizeof(ent))) {
 				return -1;
+			}
 
-			if (meta_writer_append(writer->dm, it->name, it->name_len))
+			if (sqfs_meta_writer_append(writer->dm, it->name,
+						    it->name_len)) {
 				return -1;
+			}
 
 			it = it->next;
 		}
@@ -266,7 +270,7 @@ size_t sqfs_dir_writer_get_index_size(sqfs_dir_writer_t *writer)
 }
 
 int sqfs_dir_writer_write_index(sqfs_dir_writer_t *writer,
-				meta_writer_t *im)
+				sqfs_meta_writer_t *im)
 {
 	sqfs_dir_index_t ent;
 	index_ent_t *idx;
@@ -276,11 +280,13 @@ int sqfs_dir_writer_write_index(sqfs_dir_writer_t *writer,
 		ent.index = htole32(idx->index);
 		ent.size = htole32(idx->ent->name_len - 1);
 
-		if (meta_writer_append(im, &ent, sizeof(ent)))
+		if (sqfs_meta_writer_append(im, &ent, sizeof(ent)))
 			return -1;
 
-		if (meta_writer_append(im, idx->ent->name, idx->ent->name_len))
+		if (sqfs_meta_writer_append(im, idx->ent->name,
+					    idx->ent->name_len)) {
 			return -1;
+		}
 	}
 
 	return 0;
diff --git a/lib/sqfs/meta_writer.c b/lib/sqfs/meta_writer.c
index 1f7825a..c85a12e 100644
--- a/lib/sqfs/meta_writer.c
+++ b/lib/sqfs/meta_writer.c
@@ -22,7 +22,7 @@ typedef struct meta_block_t {
 	uint8_t data[SQFS_META_BLOCK_SIZE + 2];
 } meta_block_t;
 
-struct meta_writer_t {
+struct sqfs_meta_writer_t {
 	/* A byte offset into the uncompressed data of the current block */
 	size_t offset;
 
@@ -51,9 +51,10 @@ static int write_block(int fd, meta_block_t *outblk)
 			  outblk->data, count + 2);
 }
 
-meta_writer_t *meta_writer_create(int fd, compressor_t *cmp, bool keep_in_mem)
+sqfs_meta_writer_t *sqfs_meta_writer_create(int fd, compressor_t *cmp,
+					    bool keep_in_mem)
 {
-	meta_writer_t *m = calloc(1, sizeof(*m));
+	sqfs_meta_writer_t *m = calloc(1, sizeof(*m));
 
 	if (m == NULL) {
 		perror("creating meta data writer");
@@ -66,7 +67,7 @@ meta_writer_t *meta_writer_create(int fd, compressor_t *cmp, bool keep_in_mem)
 	return m;
 }
 
-void meta_writer_destroy(meta_writer_t *m)
+void sqfs_meta_writer_destroy(sqfs_meta_writer_t *m)
 {
 	meta_block_t *blk;
 
@@ -79,7 +80,7 @@ void meta_writer_destroy(meta_writer_t *m)
 	free(m);
 }
 
-int meta_writer_flush(meta_writer_t *m)
+int sqfs_meta_writer_flush(sqfs_meta_writer_t *m)
 {
 	meta_block_t *outblk;
 	size_t count;
@@ -129,7 +130,8 @@ int meta_writer_flush(meta_writer_t *m)
 	return ret;
 }
 
-int meta_writer_append(meta_writer_t *m, const void *data, size_t size)
+int sqfs_meta_writer_append(sqfs_meta_writer_t *m, const void *data,
+			    size_t size)
 {
 	size_t diff;
 
@@ -137,7 +139,7 @@ int meta_writer_append(meta_writer_t *m, const void *data, size_t size)
 		diff = sizeof(m->data) - m->offset;
 
 		if (diff == 0) {
-			if (meta_writer_flush(m))
+			if (sqfs_meta_writer_flush(m))
 				return -1;
 			diff = sizeof(m->data);
 		}
@@ -152,25 +154,26 @@ int meta_writer_append(meta_writer_t *m, const void *data, size_t size)
 	}
 
 	if (m->offset == sizeof(m->data))
-		return meta_writer_flush(m);
+		return sqfs_meta_writer_flush(m);
 
 	return 0;
 }
 
-void meta_writer_get_position(const meta_writer_t *m, uint64_t *block_start,
-			      uint32_t *offset)
+void sqfs_meta_writer_get_position(const sqfs_meta_writer_t *m,
+				   uint64_t *block_start,
+				   uint32_t *offset)
 {
 	*block_start = m->block_offset;
 	*offset = m->offset;
 }
 
-void meta_writer_reset(meta_writer_t *m)
+void sqfs_meta_writer_reset(sqfs_meta_writer_t *m)
 {
 	m->block_offset = 0;
 	m->offset = 0;
 }
 
-int meta_write_write_to_file(meta_writer_t *m)
+int sqfs_meta_write_write_to_file(sqfs_meta_writer_t *m)
 {
 	meta_block_t *blk;
 
diff --git a/lib/sqfs/write_inode.c b/lib/sqfs/write_inode.c
index 258f516..408e428 100644
--- a/lib/sqfs/write_inode.c
+++ b/lib/sqfs/write_inode.c
@@ -8,7 +8,7 @@
 
 #include "sqfs/inode.h"
 
-static int write_block_sizes(meta_writer_t *ir, sqfs_inode_generic_t *n)
+static int write_block_sizes(sqfs_meta_writer_t *ir, sqfs_inode_generic_t *n)
 {
 	uint32_t sizes[n->num_file_blocks];
 	size_t i;
@@ -16,11 +16,12 @@ static int write_block_sizes(meta_writer_t *ir, sqfs_inode_generic_t *n)
 	for (i = 0; i < n->num_file_blocks; ++i)
 		sizes[i] = htole32(n->block_sizes[i]);
 
-	return meta_writer_append(ir, sizes,
-				  sizeof(uint32_t) * n->num_file_blocks);
+	return sqfs_meta_writer_append(ir, sizes,
+				       sizeof(uint32_t) * n->num_file_blocks);
 }
 
-int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
+int sqfs_meta_writer_write_inode(sqfs_meta_writer_t *ir,
+				 sqfs_inode_generic_t *n)
 {
 	sqfs_inode_t base;
 
@@ -31,7 +32,7 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 	base.mod_time = htole32(n->base.mod_time);
 	base.inode_number = htole32(n->base.inode_number);
 
-	if (meta_writer_append(ir, &base, sizeof(base)))
+	if (sqfs_meta_writer_append(ir, &base, sizeof(base)))
 		return -1;
 
 	switch (n->base.type) {
@@ -43,7 +44,7 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 			.offset = htole16(n->data.dir.offset),
 			.parent_inode = htole32(n->data.dir.parent_inode),
 		};
-		return meta_writer_append(ir, &dir, sizeof(dir));
+		return sqfs_meta_writer_append(ir, &dir, sizeof(dir));
 	}
 	case SQFS_INODE_FILE: {
 		sqfs_inode_file_t file = {
@@ -53,7 +54,7 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 				htole32(n->data.file.fragment_offset),
 			.file_size = htole32(n->data.file.file_size),
 		};
-		if (meta_writer_append(ir, &file, sizeof(file)))
+		if (sqfs_meta_writer_append(ir, &file, sizeof(file)))
 			return -1;
 		return write_block_sizes(ir, n);
 	}
@@ -62,10 +63,10 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 			.nlink = htole32(n->data.slink.nlink),
 			.target_size = htole32(n->data.slink.target_size),
 		};
-		if (meta_writer_append(ir, &slink, sizeof(slink)))
+		if (sqfs_meta_writer_append(ir, &slink, sizeof(slink)))
 			return -1;
-		return meta_writer_append(ir, n->slink_target,
-					  n->data.slink.target_size);
+		return sqfs_meta_writer_append(ir, n->slink_target,
+					       n->data.slink.target_size);
 	}
 	case SQFS_INODE_BDEV:
 	case SQFS_INODE_CDEV: {
@@ -73,14 +74,14 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 			.nlink = htole32(n->data.dev.nlink),
 			.devno = htole32(n->data.dev.devno),
 		};
-		return meta_writer_append(ir, &dev, sizeof(dev));
+		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 meta_writer_append(ir, &ipc, sizeof(ipc));
+		return sqfs_meta_writer_append(ir, &ipc, sizeof(ipc));
 	}
 	case SQFS_INODE_EXT_DIR: {
 		sqfs_inode_dir_ext_t dir = {
@@ -92,7 +93,7 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 			.offset = htole16(n->data.dir_ext.offset),
 			.xattr_idx = htole32(n->data.dir_ext.xattr_idx),
 		};
-		return meta_writer_append(ir, &dir, sizeof(dir));
+		return sqfs_meta_writer_append(ir, &dir, sizeof(dir));
 	}
 	case SQFS_INODE_EXT_FILE: {
 		sqfs_inode_file_ext_t file = {
@@ -105,7 +106,7 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 				htole32(n->data.file_ext.fragment_offset),
 			.xattr_idx = htole32(n->data.file_ext.xattr_idx),
 		};
-		if (meta_writer_append(ir, &file, sizeof(file)))
+		if (sqfs_meta_writer_append(ir, &file, sizeof(file)))
 			return -1;
 		return write_block_sizes(ir, n);
 	}
@@ -116,13 +117,13 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 		};
 		uint32_t xattr = htole32(n->data.slink_ext.xattr_idx);
 
-		if (meta_writer_append(ir, &slink, sizeof(slink)))
+		if (sqfs_meta_writer_append(ir, &slink, sizeof(slink)))
 			return -1;
-		if (meta_writer_append(ir, n->slink_target,
-				       n->data.slink_ext.target_size)) {
+		if (sqfs_meta_writer_append(ir, n->slink_target,
+					    n->data.slink_ext.target_size)) {
 			return -1;
 		}
-		return meta_writer_append(ir, &xattr, sizeof(xattr));
+		return sqfs_meta_writer_append(ir, &xattr, sizeof(xattr));
 	}
 	case SQFS_INODE_EXT_BDEV:
 	case SQFS_INODE_EXT_CDEV: {
@@ -131,7 +132,7 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 			.devno = htole32(n->data.dev_ext.devno),
 			.xattr_idx = htole32(n->data.dev_ext.xattr_idx),
 		};
-		return meta_writer_append(ir, &dev, sizeof(dev));
+		return sqfs_meta_writer_append(ir, &dev, sizeof(dev));
 	}
 	case SQFS_INODE_EXT_FIFO:
 	case SQFS_INODE_EXT_SOCKET: {
@@ -139,7 +140,7 @@ int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n)
 			.nlink = htole32(n->data.ipc_ext.nlink),
 			.xattr_idx = htole32(n->data.ipc_ext.xattr_idx),
 		};
-		return meta_writer_append(ir, &ipc, sizeof(ipc));
+		return sqfs_meta_writer_append(ir, &ipc, sizeof(ipc));
 	}
 	}
 
diff --git a/lib/sqfs/write_table.c b/lib/sqfs/write_table.c
index a2814a4..7c24087 100644
--- a/lib/sqfs/write_table.c
+++ b/lib/sqfs/write_table.c
@@ -19,7 +19,7 @@ int sqfs_write_table(int outfd, sqfs_super_t *super, compressor_t *cmp,
 {
 	size_t block_count, list_size, diff, blkidx = 0;
 	uint64_t block, *locations;
-	meta_writer_t *m;
+	sqfs_meta_writer_t *m;
 	uint32_t offset;
 	int ret = -1;
 
@@ -35,29 +35,29 @@ int sqfs_write_table(int outfd, sqfs_super_t *super, compressor_t *cmp,
 	}
 
 	/* Write actual data */
-	m = meta_writer_create(outfd, cmp, false);
+	m = sqfs_meta_writer_create(outfd, cmp, false);
 	if (m == NULL)
 		goto out_idx;
 
 	while (table_size > 0) {
-		meta_writer_get_position(m, &block, &offset);
+		sqfs_meta_writer_get_position(m, &block, &offset);
 		locations[blkidx++] = htole64(super->bytes_used + block);
 
 		diff = SQFS_META_BLOCK_SIZE;
 		if (diff > table_size)
 			diff = table_size;
 
-		if (meta_writer_append(m, data, diff))
+		if (sqfs_meta_writer_append(m, data, diff))
 			goto out;
 
 		data = (const char *)data + diff;
 		table_size -= diff;
 	}
 
-	if (meta_writer_flush(m))
+	if (sqfs_meta_writer_flush(m))
 		goto out;
 
-	meta_writer_get_position(m, &block, &offset);
+	sqfs_meta_writer_get_position(m, &block, &offset);
 	super->bytes_used += block;
 
 	/* write location list */
@@ -72,7 +72,7 @@ int sqfs_write_table(int outfd, sqfs_super_t *super, compressor_t *cmp,
 	/* cleanup */
 	ret = 0;
 out:
-	meta_writer_destroy(m);
+	sqfs_meta_writer_destroy(m);
 out_idx:
 	free(locations);
 	return ret;
diff --git a/lib/sqfshelper/serialize_fstree.c b/lib/sqfshelper/serialize_fstree.c
index 8e87354..0a574a0 100644
--- a/lib/sqfshelper/serialize_fstree.c
+++ b/lib/sqfshelper/serialize_fstree.c
@@ -45,18 +45,18 @@ int sqfs_serialize_fstree(int outfd, sqfs_super_t *super, fstree_t *fs,
 			  compressor_t *cmp, id_table_t *idtbl)
 {
 	sqfs_inode_generic_t *inode;
+	sqfs_meta_writer_t *im, *dm;
 	sqfs_dir_writer_t *dirwr;
-	meta_writer_t *im, *dm;
 	uint32_t offset;
 	uint64_t block;
 	int ret = -1;
 	size_t i;
 
-	im = meta_writer_create(outfd, cmp, false);
+	im = sqfs_meta_writer_create(outfd, cmp, false);
 	if (im == NULL)
 		return -1;
 
-	dm = meta_writer_create(outfd, cmp, true);
+	dm = sqfs_meta_writer_create(outfd, cmp, true);
 	if (dm == NULL)
 		goto out_im;
 
@@ -79,10 +79,10 @@ int sqfs_serialize_fstree(int outfd, sqfs_super_t *super, fstree_t *fs,
 				sqfs_dir_writer_get_index_size(dirwr);
 		}
 
-		meta_writer_get_position(im, &block, &offset);
+		sqfs_meta_writer_get_position(im, &block, &offset);
 		fs->inode_table[i]->inode_ref = (block << 16) | offset;
 
-		if (meta_writer_write_inode(im, inode)) {
+		if (sqfs_meta_writer_write_inode(im, inode)) {
 			free(inode);
 			goto out;
 		}
@@ -97,31 +97,31 @@ int sqfs_serialize_fstree(int outfd, sqfs_super_t *super, fstree_t *fs,
 		free(inode);
 	}
 
-	if (meta_writer_flush(im))
+	if (sqfs_meta_writer_flush(im))
 		goto out;
 
-	if (meta_writer_flush(dm))
+	if (sqfs_meta_writer_flush(dm))
 		goto out;
 
 	super->root_inode_ref = fs->root->inode_ref;
 
-	meta_writer_get_position(im, &block, &offset);
+	sqfs_meta_writer_get_position(im, &block, &offset);
 	super->inode_table_start = super->bytes_used;
 	super->bytes_used += block;
 
-	meta_writer_get_position(dm, &block, &offset);
+	sqfs_meta_writer_get_position(dm, &block, &offset);
 	super->directory_table_start = super->bytes_used;
 	super->bytes_used += block;
 
-	if (meta_write_write_to_file(dm))
+	if (sqfs_meta_write_write_to_file(dm))
 		goto out;
 
 	ret = 0;
 out:
 	sqfs_dir_writer_destroy(dirwr);
 out_dm:
-	meta_writer_destroy(dm);
+	sqfs_meta_writer_destroy(dm);
 out_im:
-	meta_writer_destroy(im);
+	sqfs_meta_writer_destroy(im);
 	return ret;
 }
diff --git a/lib/sqfshelper/write_xattr.c b/lib/sqfshelper/write_xattr.c
index a84822f..349b41d 100644
--- a/lib/sqfshelper/write_xattr.c
+++ b/lib/sqfshelper/write_xattr.c
@@ -16,8 +16,8 @@
 #include <string.h>
 #include <stdio.h>
 
-static int write_key(meta_writer_t *mw, const char *key, tree_xattr_t *xattr,
-		     bool value_is_ool)
+static int write_key(sqfs_meta_writer_t *mw, const char *key,
+		     tree_xattr_t *xattr, bool value_is_ool)
 {
 	sqfs_xattr_entry_t kent;
 	int type;
@@ -38,49 +38,49 @@ static int write_key(meta_writer_t *mw, const char *key, tree_xattr_t *xattr,
 	kent.type = htole16(type);
 	kent.size = htole16(strlen(key));
 
-	if (meta_writer_append(mw, &kent, sizeof(kent)))
+	if (sqfs_meta_writer_append(mw, &kent, sizeof(kent)))
 		return -1;
-	if (meta_writer_append(mw, key, strlen(key)))
+	if (sqfs_meta_writer_append(mw, key, strlen(key)))
 		return -1;
 
 	xattr->size += sizeof(sqfs_xattr_entry_t) + strlen(key);
 	return 0;
 }
 
-static int write_value(meta_writer_t *mw, const char *value,
+static int write_value(sqfs_meta_writer_t *mw, const char *value,
 		       tree_xattr_t *xattr, uint64_t *value_ref_out)
 {
 	sqfs_xattr_value_t vent;
 	uint32_t offset;
 	uint64_t block;
 
-	meta_writer_get_position(mw, &block, &offset);
+	sqfs_meta_writer_get_position(mw, &block, &offset);
 	*value_ref_out = (block << 16) | (offset & 0xFFFF);
 
 	vent.size = htole32(strlen(value));
 
-	if (meta_writer_append(mw, &vent, sizeof(vent)))
+	if (sqfs_meta_writer_append(mw, &vent, sizeof(vent)))
 		return -1;
 
-	if (meta_writer_append(mw, value, strlen(value)))
+	if (sqfs_meta_writer_append(mw, value, strlen(value)))
 		return -1;
 
 	xattr->size += sizeof(vent) + strlen(value);
 	return 0;
 }
 
-static int write_value_ool(meta_writer_t *mw, uint64_t location,
+static int write_value_ool(sqfs_meta_writer_t *mw, uint64_t location,
 			   tree_xattr_t *xattr)
 {
 	sqfs_xattr_value_t vent;
 	uint64_t ref;
 
 	vent.size = htole32(sizeof(location));
-	if (meta_writer_append(mw, &vent, sizeof(vent)))
+	if (sqfs_meta_writer_append(mw, &vent, sizeof(vent)))
 		return -1;
 
 	ref = htole64(location);
-	if (meta_writer_append(mw, &ref, sizeof(ref)))
+	if (sqfs_meta_writer_append(mw, &ref, sizeof(ref)))
 		return -1;
 
 	xattr->size += sizeof(vent) + sizeof(ref);
@@ -112,8 +112,8 @@ static bool should_store_ool(fstree_t *fs, const char *value, size_t index)
 	return strlen(value) > sizeof(uint64_t);
 }
 
-static int write_kv_pairs(fstree_t *fs, meta_writer_t *mw, tree_xattr_t *xattr,
-			  uint64_t *ool_locations)
+static int write_kv_pairs(fstree_t *fs, sqfs_meta_writer_t *mw,
+			  tree_xattr_t *xattr, uint64_t *ool_locations)
 {
 	uint32_t key_idx, val_idx;
 	const char *key, *value;
@@ -174,7 +174,7 @@ int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
 	size_t i = 0, count = 0, blocks;
 	sqfs_xattr_id_table_t idtbl;
 	sqfs_xattr_id_t id_ent;
-	meta_writer_t *mw;
+	sqfs_meta_writer_t *mw;
 	tree_xattr_t *it;
 	uint32_t offset;
 
@@ -185,7 +185,7 @@ int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
 	if (ool_locations == NULL)
 		return -1;
 
-	mw = meta_writer_create(outfd, cmp, false);
+	mw = sqfs_meta_writer_create(outfd, cmp, false);
 	if (mw == NULL)
 		goto fail_ool;
 
@@ -193,7 +193,7 @@ int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
 	kv_start = super->bytes_used;
 
 	for (it = fs->xattr; it != NULL; it = it->next) {
-		meta_writer_get_position(mw, &it->block, &it->offset);
+		sqfs_meta_writer_get_position(mw, &it->block, &it->offset);
 		it->size = 0;
 
 		if (write_kv_pairs(fs, mw, it, ool_locations))
@@ -202,11 +202,11 @@ int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
 		++count;
 	}
 
-	if (meta_writer_flush(mw))
+	if (sqfs_meta_writer_flush(mw))
 		goto fail_mw;
 
-	meta_writer_get_position(mw, &block, &offset);
-	meta_writer_reset(mw);
+	sqfs_meta_writer_get_position(mw, &block, &offset);
+	sqfs_meta_writer_reset(mw);
 
 	super->bytes_used += block;
 
@@ -232,10 +232,10 @@ int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
 		id_ent.count = htole32(it->num_attr);
 		id_ent.size = htole32(it->size);
 
-		if (meta_writer_append(mw, &id_ent, sizeof(id_ent)))
+		if (sqfs_meta_writer_append(mw, &id_ent, sizeof(id_ent)))
 			goto fail_tbl;
 
-		meta_writer_get_position(mw, &block, &offset);
+		sqfs_meta_writer_get_position(mw, &block, &offset);
 
 		if (block != id_start) {
 			id_start = block;
@@ -243,10 +243,10 @@ int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
 		}
 	}
 
-	if (meta_writer_flush(mw))
+	if (sqfs_meta_writer_flush(mw))
 		goto fail_tbl;
 
-	meta_writer_get_position(mw, &block, &offset);
+	sqfs_meta_writer_get_position(mw, &block, &offset);
 	super->bytes_used += block;
 
 	/* write offset table */
@@ -267,13 +267,13 @@ int write_xattr(int outfd, fstree_t *fs, sqfs_super_t *super,
 	super->flags &= ~SQFS_FLAG_NO_XATTRS;
 
 	free(tbl);
-	meta_writer_destroy(mw);
+	sqfs_meta_writer_destroy(mw);
 	free(ool_locations);
 	return 0;
 fail_tbl:
 	free(tbl);
 fail_mw:
-	meta_writer_destroy(mw);
+	sqfs_meta_writer_destroy(mw);
 fail_ool:
 	free(ool_locations);
 	return -1;