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Add support for converting blocksize in Loopback-C

This commit is contained in:
Benjamin Fleischer 2021-11-11 19:11:51 +01:00
parent 8e1f3024b8
commit d926daab79
1 changed files with 16 additions and 8 deletions
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24
LoopbackFS-C/loopback/loopback.c
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@ -26,8 +26,9 @@
#include <errno.h>
#include <fcntl.h>
#include <fuse.h>
#include <stdio.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/attr.h>
@ -52,7 +53,8 @@ typedef unsigned long u_long;
#define XATTR_APPLE_PREFIX "com.apple."
struct loopback {
int case_insensitive;
uint32_t blocksize;
bool case_insensitive;
};
static struct loopback loopback;
@ -879,6 +881,11 @@ loopback_statfs_x(const char *path, struct statfs *stbuf)
return -errno;
}
stbuf->f_blocks = stbuf->f_blocks * stbuf->f_bsize / loopback.blocksize;
stbuf->f_bavail = stbuf->f_bavail * stbuf->f_bsize / loopback.blocksize;
stbuf->f_bfree = stbuf->f_bfree * stbuf->f_bsize / loopback.blocksize;
stbuf->f_bsize = loopback.blocksize;
return 0;
}
@ -902,15 +909,14 @@ loopback_renamex(const char *path1, const char *path2, unsigned int flags)
void *
loopback_init(struct fuse_conn_info *conn)
{
FUSE_ENABLE_SETVOLNAME(conn);
FUSE_ENABLE_XTIMES(conn);
conn->want |= FUSE_CAP_VOL_RENAME | FUSE_CAP_XTIMES;
#ifdef FUSE_ENABLE_CASE_INSENSITIVE
if (loopback.case_insensitive) {
FUSE_ENABLE_CASE_INSENSITIVE(conn);
conn->want |= FUSE_CAP_CASE_INSENSITIVE;
}
#endif
return NULL;
}
@ -966,7 +972,8 @@ static struct fuse_operations loopback_oper = {
};
static const struct fuse_opt loopback_opts[] = {
{ "case_insensitive", offsetof(struct loopback, case_insensitive), 1 },
{ "blocksize=%u", offsetof(struct loopback, blocksize), 0 },
{ "case_insensitive", offsetof(struct loopback, case_insensitive), true },
FUSE_OPT_END
};
@ -976,6 +983,7 @@ main(int argc, char *argv[])
int res = 0;
struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
loopback.blocksize = 4096;
loopback.case_insensitive = 0;
if (fuse_opt_parse(&args, &loopback, loopback_opts, NULL) == -1) {
exit(1);