From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Mon, 10 Jun 2024 19:57:53 +0000 (+0200)
Subject: hurd: Fix getxattr("gnu.translator") returning ENODATA
X-Git-Tag: glibc-2.40~134
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba5a23422a156804234dff6c5be89e20ee8f9ec2;p=thirdparty%2Fglibc.git

hurd: Fix getxattr("gnu.translator") returning ENODATA

When no translator is set, __file_get_translator would return EINVAL
which is a confusing value. Better check for a passive translation
before getting the value.
---

diff --git a/hurd/xattr.c b/hurd/xattr.c
index 0715ad7b02..f613d47c83 100644
--- a/hurd/xattr.c
+++ b/hurd/xattr.c
@@ -61,7 +61,16 @@ _hurd_xattr_get (io_t port, const char *name, void *value, size_t *size)
     {
       char *buf = value;
       mach_msg_type_number_t bufsz = value ? *size : 0;
-      error_t err = __file_get_translator (port, &buf, &bufsz);
+      struct stat64 st;
+      error_t err;
+
+      err = __io_stat (port, &st);
+      if (err)
+	return err;
+      if ((st.st_mode & S_IPTRANS) == 0)
+	return ENODATA;
+
+      err = __file_get_translator (port, &buf, &bufsz);
       if (err)
 	return err;
       if (value != NULL && *size < bufsz)