X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Fcapture_common.c;h=0a2f26cd816aeca992d8404984b68d4083dbfbc6;hp=0fa71adcbd898c5980a85ff42138cc3bef06f3ae;hb=21da2526eff64cdb8e3cb509d34af182d764c701;hpb=c86d5f74e13e5aeff57aff84f7d65264607a29ac

diff --git a/src/capture_common.c b/src/capture_common.c
index 0fa71adc..0a2f26cd 100644
--- a/src/capture_common.c
+++ b/src/capture_common.c
@@ -135,7 +135,7 @@ mangle_pat(tchar *pat, const tchar *path, unsigned long line_no)
 	 * Note: we expect that this function produces patterns that can be used
 	 * for both filesystem paths and WIM paths, so the desired path
 	 * separators must be the same.  */
-	BUILD_BUG_ON(OS_PREFERRED_PATH_SEPARATOR != WIM_PATH_SEPARATOR);
+	STATIC_ASSERT(OS_PREFERRED_PATH_SEPARATOR == WIM_PATH_SEPARATOR);
 	do_canonicalize_path(pat, pat);
 
 	/* Relative patterns can only match file names, so they must be
@@ -307,3 +307,51 @@ try_exclude(const tchar *full_path, const struct capture_params *params)
 
 	return 0;
 }
+
+/*
+ * Determine whether a directory entry of the specified name should be ignored.
+ * This is a lower level function which runs prior to try_exclude().  It handles
+ * the standard '.' and '..' entries, which show up in directory listings but
+ * should not be archived.  It also checks for odd filenames that usually should
+ * not exist but could cause problems if archiving them were to be attempted.
+ */
+bool
+should_ignore_filename(const tchar *name, const int name_nchars)
+{
+	if (name_nchars <= 0) {
+		WARNING("Ignoring empty filename");
+		return true;
+	}
+
+	if (name[0] == T('.') &&
+	    (name_nchars == 1 || (name_nchars == 2 && name[1] == T('.'))))
+		return true;
+
+	for (int i = 0; i < name_nchars; i++) {
+		if (name[i] == T('\0')) {
+			WARNING("Ignoring filename containing embedded null character");
+			return true;
+		}
+		if (name[i] == OS_PREFERRED_PATH_SEPARATOR) {
+			WARNING("Ignoring filename containing embedded path separator");
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/* Attach a newly scanned directory tree to its parent directory, with duplicate
+ * handling.  */
+void
+attach_scanned_tree(struct wim_dentry *parent, struct wim_dentry *child,
+		    struct blob_table *blob_table)
+{
+	struct wim_dentry *duplicate;
+
+	if (child && (duplicate = dentry_add_child(parent, child))) {
+		WARNING("Duplicate file path: \"%"TS"\".  Only capturing "
+			"the first version.", dentry_full_path(duplicate));
+		free_dentry_tree(child, blob_table);
+	}
+}