(nuttx-apps) branch master updated: system/ymodem: fix send err when partial write

[xiaoxiang]

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xiaoxiang 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 715da6bde system/ymodem: fix send err when partial write
715da6bde is described below

commit 715da6bde6e4e6f4176f29a27aecc5d065514dcf
Author: fangpeina <fangpe...@xiaomi.com>
AuthorDate: Thu Dec 25 01:04:40 2025 +0800

    system/ymodem: fix send err when partial write
    
    Fix buffer offset calculation in ymodem_send_buffer() to correctly
    handle partial writes by advancing the buffer pointer and adjusting
    the remaining size on each retry.
    
    Signed-off-by: fangpeina <fangpe...@xiaomi.com>
---
 system/ymodem/ymodem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/system/ymodem/ymodem.c b/system/ymodem/ymodem.c
index 79c131f37..354f09962 100644
--- a/system/ymodem/ymodem.c
+++ b/system/ymodem/ymodem.c
@@ -98,7 +98,7 @@ static int ymodem_send_buffer(FAR struct ymodem_ctx_s *ctx,
   ymodem_debug("send buffer data, write size is %zu\n", size);
   while (i < size)
     {
-      ssize_t ret = write(ctx->sendfd, buf, size);
+      ssize_t ret = write(ctx->sendfd, buf + i, size - i);
       if (ret >= 0)
         {
           ymodem_debug("send buffer data, size %zd\n", ret);