From: Jesse Natalie <jenatali@microsoft.com>
Date: Mon, 28 Dec 2020 18:44:08 +0000 (-0800)
Subject: microsoft/compiler: Fix incorrect size passed to strncpy
X-Git-Tag: upstream/21.0.0~851
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bd97f401dc8ec76e717862c654a6ae29fcb93292;p=platform%2Fupstream%2Fmesa.git

microsoft/compiler: Fix incorrect size passed to strncpy

GCC correctly detects/warns that this was the wrong size

Fixes: b9c61379 ("microsoft/compiler: translate nir to dxil")

Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8248>
---

diff --git a/src/microsoft/compiler/dxil_signature.c b/src/microsoft/compiler/dxil_signature.c
index 9cd94b9..e44b16e 100644
--- a/src/microsoft/compiler/dxil_signature.c
+++ b/src/microsoft/compiler/dxil_signature.c
@@ -163,7 +163,7 @@ get_semantic_sv_name(nir_variable *var, struct semantic_info *info)
    default:
       unreachable("unsupported system value");
    }
-   strncpy(info->name, var->name, 64);
+   strncpy(info->name, var->name, ARRAY_SIZE(info->name) - 1);
 }
 
 static void