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authorGravatar Emmanuel Dreyfus <manu@netbsd.org>2011-12-08 10:55:27 +0000
committerGravatar Miklos Szeredi <mszeredi@suse.cz>2011-12-08 13:44:19 +0100
commit40a47ede7280c023495be97d54b08d60a932f4a7 (patch)
tree56cf6ec4e40db67b43b479ec4dc52636c8c8e4c0 /example
parent1bf98cf7bcefc810775e1aa80991a13e6070090c (diff)
utimens availability check
fusexmp uses utimens and takes that function for granted. It is part of POSIX exended API set 2 and some systems do not have it yet. Attached patch checks for utimens availability and returns ENOSYS if unavailable.
Diffstat (limited to 'example')
-rw-r--r--example/fusexmp.c5
-rw-r--r--example/fusexmp_fh.c5
2 files changed, 10 insertions, 0 deletions
diff --git a/example/fusexmp.c b/example/fusexmp.c
index 58b77a8..fa3fb4d 100644
--- a/example/fusexmp.c
+++ b/example/fusexmp.c
@@ -213,16 +213,19 @@ static int xmp_truncate(const char *path, off_t size)
return 0;
}
+#ifdef HAVE_UTIMENSAT
static int xmp_utimens(const char *path, const struct timespec ts[2])
{
int res;
+ /* don't use utime/utimes since they follow symlinks */
res = utimensat(0, path, ts, AT_SYMLINK_NOFOLLOW);
if (res == -1)
return -errno;
return 0;
}
+#endif
static int xmp_open(const char *path, struct fuse_file_info *fi)
{
@@ -359,7 +362,9 @@ static struct fuse_operations xmp_oper = {
.chmod = xmp_chmod,
.chown = xmp_chown,
.truncate = xmp_truncate,
+#ifdef HAVE_UTIMENSAT
.utimens = xmp_utimens,
+#endif
.open = xmp_open,
.read = xmp_read,
.write = xmp_write,
diff --git a/example/fusexmp_fh.c b/example/fusexmp_fh.c
index 046185c..57053ca 100644
--- a/example/fusexmp_fh.c
+++ b/example/fusexmp_fh.c
@@ -283,16 +283,19 @@ static int xmp_ftruncate(const char *path, off_t size,
return 0;
}
+#ifdef HAVE_UTIMENSAT
static int xmp_utimens(const char *path, const struct timespec ts[2])
{
int res;
+ /* don't use utime/utimes since they follow symlinks */
res = utimensat(0, path, ts, AT_SYMLINK_NOFOLLOW);
if (res == -1)
return -errno;
return 0;
}
+#endif
static int xmp_create(const char *path, mode_t mode, struct fuse_file_info *fi)
{
@@ -513,7 +516,9 @@ static struct fuse_operations xmp_oper = {
.chown = xmp_chown,
.truncate = xmp_truncate,
.ftruncate = xmp_ftruncate,
+#ifdef HAVE_UTIMENSAT
.utimens = xmp_utimens,
+#endif
.create = xmp_create,
.open = xmp_open,
.read = xmp_read,