Add setfattr --raw option

With this option, attribute values are taken as they are, without traing to
decode them. This can be thought of as the counterpart to "getfattr
--only-values".

2 files changed, 13 insertions, 1 deletions

diff --git a/man/man1/setfattr.1 b/man/man1/setfattr.1
index 75a4375..62055fd 100644
--- a/man/man1/setfattr.1
+++ b/man/man1/setfattr.1
@@ -78,6 +78,10 @@ is given as the file name,
 .B setfattr
 reads from standard input.
 .TP
+.B \-\-raw
+Do not decode the attribute value. Can be used to set values obtained with
+.BR "getfattr --only-values" .
+.TP
 .B \-\-version
 Print the version of
 .B setfattr
diff --git a/tools/setfattr.c b/tools/setfattr.c
index 33a4282..e209b0d 100644
--- a/tools/setfattr.c
+++ b/tools/setfattr.c
@@ -42,6 +42,7 @@ struct option long_options[] = {
 	{ "value",		1, 0, 'v' },
 	{ "no-dereference",	0, 0, 'h' },
 	{ "restore",		1, 0, 'B' },
+	{ "raw",		0, 0, CHAR_MAX + 1 },
 	{ "version",		0, 0, 'V' },
 	{ "help",		0, 0, 'H' },
 	{ NULL,			0, 0, 0 }
@@ -53,6 +54,7 @@ int opt_set;  /* set an attribute */
 int opt_remove;  /* remove an attribute */
 int opt_restore;  /* restore has been run */
 int opt_deref = 1;  /* dereference symbolic links */
+int opt_raw;  /* attribute value is not encoded */
 
 int had_errors;
 const char *progname;
@@ -182,6 +184,7 @@ void help(void)
 "  -v, --value=value       use value as the attribute value\n"
 "  -h, --no-dereference    do not dereference symbolic links\n"
 "      --restore=file      restore extended attributes\n"
+"      --raw               attribute value is not encoded\n"
 "      --version           print version and exit\n"
 "      --help              this help text\n"));
 }
@@ -217,6 +220,10 @@ int main(int argc, char *argv[])
 				opt_value = optarg;
 				break;
 
+			case CHAR_MAX + 1:
+				opt_raw = 1;
+				break;
+
 			case 'x':  /* remove attribute */
 				if (opt_name || opt_set)
 					goto synopsis;
@@ -266,7 +273,8 @@ int do_set(const char *path, const char *name, const char *value)
 
 	if (value) {
 		size = strlen(value);
-		value = decode(value, &size);
+		if (!opt_raw)
+			value = decode(value, &size);
 		if (!value)
 			return 1;
 	}