(nuttx-apps) branch master updated: examples: nrf24l01_btle: Fix RX terminator bounds

[xiaoxiang]

This is an automated email from the ASF dual-hosted git repository.

xiaoxiang781216 pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx-apps.git


The following commit(s) were added to refs/heads/master by this push:
     new 13f04f65b examples: nrf24l01_btle: Fix RX terminator bounds
13f04f65b is described below

commit 13f04f65b1bf444729c9a000846c176fdcdc4280
Author: Old-Ding <ai.neo.a...@gmail.com>
AuthorDate: Mon Jul 6 04:01:21 2026 +0800

    examples: nrf24l01_btle: Fix RX terminator bounds
    
    nrf24_read() reads up to the nRF24L01 maximum payload length and then 
appends a NUL terminator for the receive buffer. A full 32-byte payload can 
therefore write one byte past the local rbuf[32].
    
    Reserve one extra byte for the terminator while keeping the read length 
capped at NRF24L01_MAX_PAYLOAD_LEN. Dump the number of bytes actually received 
in the debug path.
    
    Signed-off-by: Old-Ding <ai.neo.a...@gmail.com>
---
 examples/nrf24l01_btle/nrf24l01_btle.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/examples/nrf24l01_btle/nrf24l01_btle.c 
b/examples/nrf24l01_btle/nrf24l01_btle.c
index 6e1490f45..d7f24ab3c 100644
--- a/examples/nrf24l01_btle/nrf24l01_btle.c
+++ b/examples/nrf24l01_btle/nrf24l01_btle.c
@@ -484,9 +484,9 @@ int nrf24_read(int wl_fd)
 {
   int ret;
   uint32_t pipeno;
-  uint8_t rbuf[32];
+  uint8_t rbuf[NRF24L01_MAX_PAYLOAD_LEN + 1];
 
-  ret = read(wl_fd, rbuf, sizeof(rbuf));
+  ret = read(wl_fd, rbuf, NRF24L01_MAX_PAYLOAD_LEN);
   if (ret < 0)
     {
       perror("Error reading packet\n");
@@ -512,7 +512,7 @@ int nrf24_read(int wl_fd)
 
 #ifdef CONFIG_DEBUG_WIRELESS
   syslog(LOG_INFO, "Message received : (on pipe %d)\n",  pipeno);
-  nrf24_dumpbuffer("Hex Dump", &rbuf[0], 32);
+  nrf24_dumpbuffer("Hex Dump", &rbuf[0], ret);
 #endif
   return 0;
 }