addattr can now add attributes to directories and symlinks

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30923 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/bin/addattr/addAttr.cpp

@@ -135,9 +135,9 @@ writeAttr(int fd, type_code type, const char *name, const char *value, size_t le
 
 status_t
 addAttr(const char *file, type_code type, const char *name,
-	const char *value, size_t length)
+	const char *value, size_t length, bool resolveLinks)
 {
-	int fd = open(file, O_WRONLY);
+	int fd = open(file, O_RDONLY | (resolveLinks ? 0 : O_NOTRAVERSE));
 	if (fd < 0)
 		return errno;
 

src/bin/addattr/addAttr.h

@@ -12,6 +12,6 @@
 
 
 status_t addAttr(const char *file, type_code attrType, const char *attrName,
-	const char *attrValue, size_t length);
+	const char *attrValue, size_t length, bool resolveLinks);
 
 #endif	/* _ADD_ATTR_H */

src/bin/addattr/main.cpp

@@ -86,8 +86,9 @@ typeForString(const char *string, type_code *_result)
 void
 usage(int returnValue)
 {
-	fprintf(stderr, "usage: %s [-t type] attr value file1 [file2...]\n"
+	fprintf(stderr, "usage: %s [-t type] [ -P ] attr value file1 [file2...]\n"
-		"   or: %s [-f value-from-file] [-t type] attr file1 [file2...]\n\n"
+		"   or: %s [-f value-from-file] [-t type] [ -P ] attr file1 [file2...]\n\n"
+		"\t-P : Don't resolve links\n"
 		"\tType is one of:\n"
 		"\t\tstring, mime, int, llong, float, double, bool, raw\n"
 		"\t\tor a numeric value (ie. 0x1234, 42, 'ABCD', ...)\n"
@@ -148,6 +149,7 @@ main(int argc, char *argv[])
 	char *attrValue = NULL;
 	size_t valueFileLength = 0;
 	int32 i = 1;
+	bool resolveLinks = true;
 
 	if (!strcmp(argv[i], "-f")) {
 		// retrieve attribute value from file
@@ -204,6 +206,12 @@ main(int argc, char *argv[])
 		i += 2;
 	}
 
+	assertArgument(i, argc);
+	if (!strcmp(argv[i], "-P")) {
+		resolveLinks = false;
+		i++;
+	}
+
 	assertArgument(i, argc);
 	const char *attrName = argv[i++];
 
@@ -221,7 +229,7 @@ main(int argc, char *argv[])
 
 	for (; i < argc; i++) {
 		status_t status = addAttr(argv[i], attrType, attrName, attrValue,
-			valueFileLength);
+			valueFileLength, resolveLinks);
 
 		// special case for bool types
 		if (status == B_BAD_VALUE && attrType == B_BOOL_TYPE)