From bd2f6c590707f6677da5ad84d29c10029936f2cf Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Thu, 29 Aug 2013 05:34:58 +0000
Subject: [PATCH] default blend file name setting (untitled.blend) length check
 wasn't correct, move to generic function BLI_ensure_filename().

---
 source/blender/blenlib/BLI_path_util.h        |  1 +
 source/blender/blenlib/intern/path_util.c     | 10 ++++++++++
 .../windowmanager/intern/wm_operators.c       | 20 ++++++++-----------
 3 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/source/blender/blenlib/BLI_path_util.h b/source/blender/blenlib/BLI_path_util.h
index cb812fe8595..113c511a4f7 100644
--- a/source/blender/blenlib/BLI_path_util.h
+++ b/source/blender/blenlib/BLI_path_util.h
@@ -122,6 +122,7 @@ bool BLI_testextensie_array(const char *str, const char **ext_array);
 bool BLI_testextensie_glob(const char *str, const char *ext_fnmatch);
 bool BLI_replace_extension(char *path, size_t maxlen, const char *ext);
 bool BLI_ensure_extension(char *path, size_t maxlen, const char *ext);
+bool BLI_ensure_filename(char *filepath, size_t maxlen, const char *filename);
 void BLI_uniquename(struct ListBase *list, void *vlink, const char *defname, char delim, short name_offs, short len);
 bool BLI_uniquename_cb(bool (*unique_check)(void *arg, const char *name),
                        void *arg, const char * defname, char delim, char *name, short name_len);
diff --git a/source/blender/blenlib/intern/path_util.c b/source/blender/blenlib/intern/path_util.c
index 4d6c9797ed1..bcdc226a2a7 100644
--- a/source/blender/blenlib/intern/path_util.c
+++ b/source/blender/blenlib/intern/path_util.c
@@ -1641,6 +1641,16 @@ bool BLI_ensure_extension(char *path, size_t maxlen, const char *ext)
 	return true;
 }
 
+bool BLI_ensure_filename(char *filepath, size_t maxlen, const char *filename)
+{
+	char *c = (char *)BLI_last_slash(filepath);
+	if (!c || ((c - filepath) < maxlen - (strlen(filename) + 1))) {
+		strcpy(c ? &c[1] : filepath, filename);
+		return true;
+	}
+	return false;
+}
+
 /* Converts "/foo/bar.txt" to "/foo/" and "bar.txt"
  * - wont change 'string'
  * - wont create any directories
diff --git a/source/blender/windowmanager/intern/wm_operators.c b/source/blender/windowmanager/intern/wm_operators.c
index a68d6daa96f..fbb51702844 100644
--- a/source/blender/windowmanager/intern/wm_operators.c
+++ b/source/blender/windowmanager/intern/wm_operators.c
@@ -2419,15 +2419,10 @@ static void WM_OT_recover_auto_save(wmOperatorType *ot)
 
 /* *************** save file as **************** */
 
-static void untitled(char *filepath)
+static void wm_filepath_default(char *filepath)
 {
-	if (G.save_over == 0 && strlen(filepath) < FILE_MAX - 16) {
-		char *c = (char *)BLI_last_slash(filepath);
-		
-		if (c)
-			strcpy(&c[1], "untitled.blend");
-		else
-			strcpy(filepath, "untitled.blend");
+	if (G.save_over == false) {
+		BLI_ensure_filename(filepath, FILE_MAX, "untitled.blend");
 	}
 }
 
@@ -2455,7 +2450,7 @@ static int wm_save_as_mainfile_invoke(bContext *C, wmOperator *op, const wmEvent
 	else
 		BLI_strncpy(name, G.main->name, FILE_MAX);
 	
-	untitled(name);
+	wm_filepath_default(name);
 	RNA_string_set(op->ptr, "filepath", name);
 	
 	WM_event_add_fileselect(C, op);
@@ -2471,11 +2466,12 @@ static int wm_save_as_mainfile_exec(bContext *C, wmOperator *op)
 
 	save_set_compress(op);
 	
-	if (RNA_struct_property_is_set(op->ptr, "filepath"))
+	if (RNA_struct_property_is_set(op->ptr, "filepath")) {
 		RNA_string_get(op->ptr, "filepath", path);
+	}
 	else {
 		BLI_strncpy(path, G.main->name, FILE_MAX);
-		untitled(path);
+		wm_filepath_default(path);
 	}
 	
 	fileflags = G.fileflags & ~G_FILE_USERPREFS;
@@ -2566,7 +2562,7 @@ static int wm_save_mainfile_invoke(bContext *C, wmOperator *op, const wmEvent *U
 	else
 		BLI_strncpy(name, G.main->name, FILE_MAX);
 
-	untitled(name);
+	wm_filepath_default(name);
 	
 	RNA_string_set(op->ptr, "filepath", name);