From e73ff6d208c10f601605f58037e4e96f98023024 Mon Sep 17 00:00:00 2001
From: yabu76 <yabu76@gmail.com>
Date: Tue, 30 Dec 2025 21:04:29 +0900
Subject: [PATCH] Fix tty_write to return error code (negative value) in error
 case

---
 src/misc.c | 2 +-
 src/tty.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/misc.c b/src/misc.c
index 0df64fd..ec39f51 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -288,7 +288,7 @@ int execute_shell_command(int fd, const char *command)
         close(pipe_fd[WRITE_END]);
         while ( (bytes = read(pipe_fd[READ_END], buf, sizeof(buf))) > 0)
         {
-            if (tty_write(fd, buf, bytes) <= 0)
+            if (tty_write(fd, buf, bytes) < 0)
             {
                 tio_warning_printf("Could not write to tty device");
             }
diff --git a/src/tty.c b/src/tty.c
index 8191e0c..2bfad11 100644
--- a/src/tty.c
+++ b/src/tty.c
@@ -299,7 +299,7 @@ ssize_t tty_write(int fd, void *buffer, size_t count)
             {
                 // Error
                 tio_debug_printf("Write error (%s)", strerror(errno));
-                break;
+                return retval;
             }
             bytes_written += retval;