meta-openembedded/meta-multimedia/recipes-multimedia/tinyalsa/tinyalsa/0001-fixed-compilation-error-caused-by-strncpy.patch

From 639650dd64e483074dd7c3c7ea6dc1b1bd542743 Mon Sep 17 00:00:00 2001
From: alperak <alperyasinak1@gmail.com>
Date: Sun, 12 Nov 2023 20:16:55 +0300
Subject: [PATCH] fixed compilation error caused by strncpy

Issue:
 https://github.com/tinyalsa/tinyalsa/issues/219

Fix:
 https://github.com/tinyalsa/tinyalsa/pull/220
 https://github.com/tinyalsa/tinyalsa/pull/221

Upstream-Status: Submitted

Signed-off-by: alperak <alperyasinak1@gmail.com>
---
 src/mixer_plugin.c | 8 +++++---
 src/pcm_plugin.c   | 9 ++++++---
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/mixer_plugin.c b/src/mixer_plugin.c
index 34117a9..f608563 100644
--- a/src/mixer_plugin.c
+++ b/src/mixer_plugin.c
@@ -82,7 +82,8 @@ static int mixer_plug_get_elem_id(struct mixer_plug_data *plug_data,
     id->iface = ctl->iface;
 
     strncpy((char *)id->name, (char *)ctl->name,
-            sizeof(id->name));
+            sizeof(id->name) - 1);
+    ((char *)id->name)[sizeof(id->name) - 1] = '\0';
 
     return 0;
 }
@@ -100,8 +101,9 @@ static int mixer_plug_info_enum(struct snd_control *ctl,
 
     strncpy(einfo->value.enumerated.name,
             val->texts[einfo->value.enumerated.item],
-            sizeof(einfo->value.enumerated.name));
-
+            sizeof(einfo->value.enumerated.name) - 1);
+    einfo->value.enumerated.name[sizeof(einfo->value.enumerated.name) - 1] = '\0';
+    
     return 0;
 }
 
diff --git a/src/pcm_plugin.c b/src/pcm_plugin.c
index 15bfc80..47bf4a5 100644
--- a/src/pcm_plugin.c
+++ b/src/pcm_plugin.c
@@ -153,9 +153,12 @@ static int pcm_plug_info(struct pcm_plug_data *plug_data,
         return ret;
     }
 
-    strncpy((char *)info->id, name, sizeof(info->id));
-    strncpy((char *)info->name, name, sizeof(info->name));
-    strncpy((char *)info->subname, name, sizeof(info->subname));
+    strncpy((char *)info->id, name, sizeof(info->id) - 1);
+    ((char *)info->id)[sizeof(info->id) - 1] = '\0';
+    strncpy((char *)info->name, name, sizeof(info->name) - 1);
+    ((char *)info->name)[sizeof(info->name) - 1] = '\0';
+    strncpy((char *)info->subname, name, sizeof(info->subname) - 1);
+    ((char *)info->subname)[sizeof(info->subname) - 1] = '\0';
 
     info->subdevices_count = 1;
 
-- 
2.25.1