From: Michael D. Lowis <mike.lowis@gentex.com>
Date: Wed, 31 May 2017 13:51:59 +0000 (-0400)
Subject: Fixed some bad memory accesses found with valgrind
X-Git-Url: https://git.mdlowis.com/?a=commitdiff_plain;h=ab248451a5cd954b1ec2813259ad51813db7e729;p=projs%2Ftide.git

Fixed some bad memory accesses found with valgrind
---

diff --git a/lib/view.c b/lib/view.c
index 727aace..4872f69 100644
--- a/lib/view.c
+++ b/lib/view.c
@@ -178,6 +178,8 @@ void view_init(View* view, char* file, void (*errfn)(char*)) {
         for (size_t i = 0; i < view->nrows; i++)
             free(view->rows[i]);
         free(view->rows);
+        view->nrows = 0;
+        view->rows  = NULL;
     }
     buf_init(&(view->buffer), errfn);
     view->selection = (Sel){ 0 };
@@ -249,6 +251,7 @@ static void find_cursor(View* view, size_t* csrx, size_t* csry) {
 }
 
 void view_update(View* view, size_t* csrx, size_t* csry) {
+    if (!view->nrows) return;
     size_t csr = view->selection.end;
     /* scroll the view and reflow the screen lines */
     reflow(view);
diff --git a/tide.c b/tide.c
index 4441a24..061f16c 100644
--- a/tide.c
+++ b/tide.c
@@ -149,6 +149,7 @@ static void quit(void) {
 }
 
 static bool changed_externally(Buf* buf) {
+    if (!buf->path) return false;
     bool modified = (buf->modtime != modtime(buf->path));
     if (modified)
         ondiagmsg("File modified externally: {SaveAs } Overwrite Reload");