From 71cc0cfd80b004b3c9b89a7dc62377871f4a4986 Mon Sep 17 00:00:00 2001
From: cpq <sergey.lyubka@cesanta.com>
Date: Tue, 23 Dec 2025 12:23:23 +0000
Subject: [PATCH] Zephyr nits

---
 .github/workflows/zephyr.yml | 2 +-
 mongoose.c                   | 9 +++++++++
 mongoose.h                   | 9 ++++++---
 src/arch_zephyr.h            | 9 ++++++---
 src/util.c                   | 9 +++++++++
 5 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/zephyr.yml b/.github/workflows/zephyr.yml
index cd4e8c6e..ca56b41b 100644
--- a/.github/workflows/zephyr.yml
+++ b/.github/workflows/zephyr.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        revno: ["--mr v3.7-branch", "--mr v4.2.0"] # LTS, latest stable
+        revno: ["--mr v3.7-branch", "--mr v4.2.0", "--mr v4.3.0"] # LTS, latest stable
     name: Zephyr ${{ matrix.revno }}
     steps:
       - uses: actions/checkout@v4
diff --git a/mongoose.c b/mongoose.c
index d41b5fc7..1c58fa9e 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -21460,6 +21460,15 @@ bool mg_random(void *buf, size_t len) {
 #elif MG_ARCH == MG_ARCH_PICOSDK
   while (len--) *p++ = (unsigned char) (get_rand_32() & 255);
   success = true;
+#elif MG_ARCH == MG_ARCH_ZEPHYR
+#if MG_TLS == MG_TLS_BUILTIN ||                                    \
+    (MG_TLS == MG_TLS_MBED && (!defined(MBEDTLS_VERSION_NUMBER) || \
+                               MBEDTLS_VERSION_NUMBER < 0x04000000))
+  return (sys_csrand_get(buf, len) == 0);  // do not fallback on reseed error
+#else
+  sys_rand_get(buf, len);
+  success = true;
+#endif
 #elif MG_ARCH == MG_ARCH_WIN32
 #if defined(_MSC_VER) && _MSC_VER < 1700
   static bool initialised = false;
diff --git a/mongoose.h b/mongoose.h
index b4492bff..8843814d 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -723,12 +723,15 @@ typedef int socklen_t;
 
 #include <zephyr/kernel.h>
 #include <zephyr/version.h>
-
-#include <ctype.h>
-#include <errno.h>
 #include <zephyr/net/socket.h>
+//#include <zephyr/posix/dirent.h>
 #include <zephyr/posix/fcntl.h>
 #include <zephyr/posix/sys/select.h>
+#include <zephyr/random/random.h>
+
+
+#include <ctype.h>
+#include <errno.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdint.h>
diff --git a/src/arch_zephyr.h b/src/arch_zephyr.h
index 321a83dd..7865133f 100644
--- a/src/arch_zephyr.h
+++ b/src/arch_zephyr.h
@@ -4,12 +4,15 @@
 
 #include <zephyr/kernel.h>
 #include <zephyr/version.h>
-
-#include <ctype.h>
-#include <errno.h>
 #include <zephyr/net/socket.h>
+//#include <zephyr/posix/dirent.h>
 #include <zephyr/posix/fcntl.h>
 #include <zephyr/posix/sys/select.h>
+#include <zephyr/random/random.h>
+
+
+#include <ctype.h>
+#include <errno.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdint.h>
diff --git a/src/util.c b/src/util.c
index a99d7efa..3df83065 100644
--- a/src/util.c
+++ b/src/util.c
@@ -27,6 +27,15 @@ bool mg_random(void *buf, size_t len) {
 #elif MG_ARCH == MG_ARCH_PICOSDK
   while (len--) *p++ = (unsigned char) (get_rand_32() & 255);
   success = true;
+#elif MG_ARCH == MG_ARCH_ZEPHYR
+#if MG_TLS == MG_TLS_BUILTIN ||                                    \
+    (MG_TLS == MG_TLS_MBED && (!defined(MBEDTLS_VERSION_NUMBER) || \
+                               MBEDTLS_VERSION_NUMBER < 0x04000000))
+  return (sys_csrand_get(buf, len) == 0);  // do not fallback on reseed error
+#else
+  sys_rand_get(buf, len);
+  success = true;
+#endif
 #elif MG_ARCH == MG_ARCH_WIN32
 #if defined(_MSC_VER) && _MSC_VER < 1700
   static bool initialised = false;
-- 
2.43.0