Always check for ENODATA with ENOATTR

Linux defines ENODATA and ENOATTR with the same value, which means that
code can miss on on the two without breaking.

FreeBSD does not have ENODATA and GlusterFS defines it as ENOATTR just
like Linux does.

On NetBSD, ENODATA != ENOATTR, hence we need to check for both values
to get portable behavior.

BUG: 764655
Change-Id: I003a3af055fdad285d235f2a0c192c9cce56fab8
Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
Reviewed-on: http://review.gluster.org/8447
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>

3 files changed, 14 insertions, 10 deletions

diff --git a/xlators/storage/posix/src/posix-handle.c b/xlators/storage/posix/src/posix-handle.c
index 48ca77d9e01..9439b295cb9 100644
--- a/xlators/storage/posix/src/posix-handle.c
+++ b/xlators/storage/posix/src/posix-handle.c
@@ -549,7 +549,7 @@ posix_does_old_trash_exists (char *old_trash)
         ret = lstat (old_trash, &stbuf);
         if ((ret == 0) && S_ISDIR (stbuf.st_mode)) {
                 ret = sys_lgetxattr (old_trash, "trusted.gfid", gfid, 16);
-                if ((ret < 0) && (errno == ENODATA))
+                if ((ret < 0) && (errno == ENODATA || errno == ENOATTR) )
                         exists = _gf_true;
         }
         return exists;
diff --git a/xlators/storage/posix/src/posix-handle.h b/xlators/storage/posix/src/posix-handle.h
index fec1447982b..a30e0296140 100644
--- a/xlators/storage/posix/src/posix-handle.h
+++ b/xlators/storage/posix/src/posix-handle.h
@@ -68,7 +68,7 @@
        op_ret = sys_lgetxattr (path, key, &value, sizeof (value));  \
        if (op_ret == -1) {                                              \
                op_errno = errno;                                        \
-               if (op_errno == ENOATTR) {                               \
+               if (op_errno == ENOATTR || op_errno == ENODATA) {        \
                        value = 1;                                       \
                } else {                                                 \
                        gf_log (this->name, GF_LOG_WARNING,"getting xattr " \
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c
index e0fff819c6c..e8d6a8bd66a 100644
--- a/xlators/storage/posix/src/posix.c
+++ b/xlators/storage/posix/src/posix.c
@@ -3910,8 +3910,9 @@ posix_fgetxattr (call_frame_t *frame, xlator_t *this,
                 size = sys_fgetxattr (_fd, key, NULL, 0);
                 if (size <= 0) {
                         op_errno = errno;
-                        gf_log (this->name, ((errno == ENODATA) ?
-                                             GF_LOG_DEBUG : GF_LOG_ERROR),
+                        gf_log (this->name,
+                                ((errno == ENODATA || errno == ENOATTR) ?
+                                        GF_LOG_DEBUG : GF_LOG_ERROR),
                                 "fgetxattr failed on key %s (%s)", key,
                                 strerror (op_errno));
                         goto done;
@@ -4131,7 +4132,7 @@ _posix_remove_xattr (dict_t *dict, char *key, data_t *value, void *data)
         op_ret = sys_lremovexattr (filler->real_path, key);
         if (op_ret == -1) {
                 filler->op_errno = errno;
-                if (errno != ENOATTR && errno != EPERM)
+                if (errno != ENOATTR && errno != ENODATA && errno != EPERM)
                         gf_log (this->name, GF_LOG_ERROR,
                                 "removexattr failed on %s (for %s): %s",
                                 filler->real_path, key, strerror (errno));
@@ -4191,7 +4192,8 @@ posix_removexattr (call_frame_t *frame, xlator_t *this,
         op_ret = sys_lremovexattr (real_path, name);
         if (op_ret == -1) {
                 op_errno = errno;
-                if (op_errno != ENOATTR && op_errno != EPERM)
+                if (op_errno != ENOATTR && op_errno != ENODATA &&
+                    op_errno != EPERM)
                         gf_log (this->name, GF_LOG_ERROR,
                                 "removexattr on %s (for %s): %s", real_path,
                                 name, strerror (op_errno));
@@ -4246,7 +4248,8 @@ posix_fremovexattr (call_frame_t *frame, xlator_t *this,
         op_ret = sys_fremovexattr (_fd, name);
         if (op_ret == -1) {
                 op_errno = errno;
-                if (op_errno != ENOATTR && op_errno != EPERM)
+                if (op_errno != ENOATTR && op_errno != ENODATA &&
+                    op_errno != EPERM)
                         gf_log (this->name, GF_LOG_ERROR,
                                 "fremovexattr (for %s): %s",
                                 name, strerror (op_errno));
@@ -5516,15 +5519,16 @@ init (xlator_t *this)
                                 ret = -1;
                                 goto out;
                         }
-                } else if ((size == -1) && (errno == ENODATA)) {
-
+                } else if ((size == -1) &&
+                           (errno == ENODATA || errno == ENOATTR)) {
                                 gf_log (this->name, GF_LOG_ERROR,
                                         "Extended attribute trusted.glusterfs."
                                         "volume-id is absent");
                                 ret = -1;
                                 goto out;
 
-                }  else if ((size == -1) && (errno != ENODATA)) {
+                }  else if ((size == -1) && (errno != ENODATA) &&
+                            (errno != ENOATTR)) {
                         /* Wrong 'volume-id' is set, it should be error */
                         gf_log (this->name, GF_LOG_WARNING,
                                 "%s: failed to fetch volume-id (%s)",