From 39c5a5e929efc7c3b89a4e316dfd02b1734848d6 Mon Sep 17 00:00:00 2001
From: Przemyslaw Pawelczyk <przemoc@gmail.com>
Date: Mon, 19 Feb 2018 00:34:14 +0100
Subject: Support building with no extended attributes support.

Support building with no extended attributes support when NO_XATTR
macro is predefined to non-0 value (e.g. put -DNO_XATTR in CFLAGS).
---
 src/metastore.c | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

(limited to 'src/metastore.c')

diff --git a/src/metastore.c b/src/metastore.c
index ada41c4..9f01a8c 100644
--- a/src/metastore.c
+++ b/src/metastore.c
@@ -25,7 +25,11 @@
 #include <sys/stat.h>
 #include <getopt.h>
 #include <utime.h>
-#include <sys/xattr.h>
+
+#if !defined(NO_XATTR) || !NO_XATTR
+# include <sys/xattr.h>
+#endif /* !NO_XATTR */
+
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
@@ -122,6 +126,11 @@ compare_print(struct metaentry *real, struct metaentry *stored, int cmp)
 	if (cmp & DIFF_XATTR)
 		msg(MSG_QUIET, "xattr ");
 	msg(MSG_QUIET, "\n");
+
+	if (NO_XATTR && cmp & DIFF_XATTR) {
+		msg(MSG_WARNING, "%s:\txattr difference may be bogus: %s\n",
+		    real->path, NO_XATTR_MSG);
+	}
 }
 
 /*
@@ -235,9 +244,16 @@ compare_fix(struct metaentry *real, struct metaentry *stored, int cmp)
 
 			msg(MSG_NORMAL, "%s:\tremoving xattr %s\n",
 			    real->path, real->xattr_names[i]);
+			if (NO_XATTR) {
+				msg(MSG_WARNING, "%s:\tremoving xattr %s failed: %s\n",
+				    real->path, real->xattr_names[i], NO_XATTR_MSG);
+			}
+#if !defined(NO_XATTR) || !NO_XATTR
+			else
 			if (lremovexattr(real->path, real->xattr_names[i]))
 				msg(MSG_DEBUG, "\tlremovexattr failed: %s\n",
 				    strerror(errno));
+#endif /* !NO_XATTR */
 		}
 
 		for (i = 0; i < stored->xattrs; i++) {
@@ -247,12 +263,19 @@ compare_fix(struct metaentry *real, struct metaentry *stored, int cmp)
 
 			msg(MSG_NORMAL, "%s:\tadding xattr %s\n",
 			    stored->path, stored->xattr_names[i]);
+			if (NO_XATTR) {
+				msg(MSG_WARNING, "%s:\tadding xattr %s failed: %s\n",
+				    stored->path, stored->xattr_names[i], NO_XATTR_MSG);
+			}
+#if !defined(NO_XATTR) || !NO_XATTR
+			else
 			if (lsetxattr(stored->path, stored->xattr_names[i],
 			              stored->xattr_values[i],
 			              stored->xattr_lvalues[i], XATTR_CREATE)
 			   )
 				msg(MSG_DEBUG, "\tlsetxattr failed: %s\n",
 				    strerror(errno));
+#endif /* !NO_XATTR */
 		}
 	}
 }
@@ -401,6 +424,10 @@ version(void)
 {
 	printf("metastore %s\n", METASTORE_VER);
 
+	if (NO_XATTR) {
+		printf("Built with %s.\n", NO_XATTR_MSG);
+	}
+
 	exit(EXIT_SUCCESS);
 }
 
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