Move abstract squashfs I/O code to libsquashfs.a

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

1 files changed, 0 insertions, 92 deletions

diff --git a/mkfs/meta_writer.c b/mkfs/meta_writer.c
deleted file mode 100644
index 3219c91..0000000
--- a/mkfs/meta_writer.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-#include "mksquashfs.h"
-#include "util.h"
-
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-
-meta_writer_t *meta_writer_create(int fd, compressor_t *cmp)
-{
-	meta_writer_t *m = calloc(1, sizeof(*m));
-
-	if (m == NULL) {
-		perror("creating meta data writer");
-		return NULL;
-	}
-
-	m->cmp = cmp;
-	m->outfd = fd;
-	return m;
-}
-
-void meta_writer_destroy(meta_writer_t *m)
-{
-	free(m);
-}
-
-int meta_writer_flush(meta_writer_t *m)
-{
-	ssize_t ret, count;
-
-	if (m->offset == 0)
-		return 0;
-
-	ret = m->cmp->do_block(m->cmp, m->data + 2, m->offset);
-	if (ret < 0)
-		return -1;
-
-	if (ret > 0) {
-		((uint16_t *)m->data)[0] = htole16(ret);
-		count = ret + 2;
-	} else {
-		((uint16_t *)m->data)[0] = htole16(m->offset | 0x8000);
-		count = m->offset + 2;
-	}
-
-	ret = write_retry(m->outfd, m->data, count);
-
-	if (ret < 0) {
-		perror("writing meta data");
-		return -1;
-	}
-
-	if (ret < count) {
-		fputs("meta data written to file was truncated\n", stderr);
-		return -1;
-	}
-
-	memset(m->data, 0, sizeof(m->data));
-	m->offset = 0;
-	m->block_offset += count;
-	return 0;
-}
-
-int meta_writer_append(meta_writer_t *m, const void *data, size_t size)
-{
-	size_t diff;
-
-	while (size != 0) {
-		diff = sizeof(m->data) - 2 - m->offset;
-
-		if (diff == 0) {
-			if (meta_writer_flush(m))
-				return -1;
-			diff = sizeof(m->data) - 2;
-		}
-
-		if (diff > size)
-			diff = size;
-
-		memcpy(m->data + 2 + m->offset, data, diff);
-		m->offset += diff;
-		size -= diff;
-		data = (const char *)data + diff;
-	}
-
-	if (m->offset == (sizeof(m->data) - 2))
-		return meta_writer_flush(m);
-
-	return 0;
-}