From 241589424d9612b913ef7f5502839ee6ab2151bc Mon Sep 17 00:00:00 2001
From: ShubhamDesai <42180509+ShubhamDesai@users.noreply.github.com>
Date: Wed, 16 Oct 2024 04:08:22 -0400
Subject: [PATCH] r.in.gridatb: check if opening of file succeeds (#4532)

---
 raster/r.in.gridatb/file_io.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/raster/r.in.gridatb/file_io.c b/raster/r.in.gridatb/file_io.c
index 256f9869473..52ad174df4d 100644
--- a/raster/r.in.gridatb/file_io.c
+++ b/raster/r.in.gridatb/file_io.c
@@ -12,6 +12,9 @@ void rdwr_gridatb(void)
     float idx;
 
     fp = fopen(file, "r");
+    if (!fp) {
+        G_fatal_error(_("Unable to open file: %s"), file);
+    }
 
     buf[0] = 0;
     if (fscanf(fp, "%[^\n]", buf) != 1)