[PATCH 1/5] sandbox: eth-raw: do not close the console input

[Heinrich Schuchardt]

When the sandbox eth-raw device host_lo is removed this leads to closing
the console input.

Do not call close(0).

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 arch/sandbox/cpu/eth-raw-os.c | 8 ++++----
 arch/sandbox/cpu/os.c         | 5 ++++-
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/arch/sandbox/cpu/eth-raw-os.c b/arch/sandbox/cpu/eth-raw-os.c
index da01d1addf..6a8d809756 100644
--- a/arch/sandbox/cpu/eth-raw-os.c
+++ b/arch/sandbox/cpu/eth-raw-os.c
@@ -53,7 +53,7 @@ int sandbox_eth_raw_os_is_local(const char *ifname)
 	}
 	ret = !!(ifr.ifr_flags & IFF_LOOPBACK);
 out:
-	close(fd);
+	os_close(fd);
 	return ret;
 }

@@ -220,7 +220,7 @@ int sandbox_eth_raw_os_send(void *packet, int length,
 		struct sockaddr_in addr;

 		if (priv->local_bind_sd != -1)
-			close(priv->local_bind_sd);
+			os_close(priv->local_bind_sd);

 		/* A normal UDP socket is required to bind */
 		priv->local_bind_sd = socket(AF_INET, SOCK_DGRAM, 0);
@@ -284,11 +284,11 @@ void sandbox_eth_raw_os_stop(struct eth_sandbox_raw_priv *priv)
 {
 	free(priv->device);
 	priv->device = NULL;
-	close(priv->sd);
+	os_close(priv->sd);
 	priv->sd = -1;
 	if (priv->local) {
 		if (priv->local_bind_sd != -1)
-			close(priv->local_bind_sd);
+			os_close(priv->local_bind_sd);
 		priv->local_bind_sd = -1;
 		priv->local_bind_udp_port = 0;
 	}
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index e7ec892bdf..c461fb0db0 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -86,7 +86,10 @@ int os_open(const char *pathname, int os_flags)

 int os_close(int fd)
 {
-	return close(fd);
+	/* Do not close the console input */
+	if (fd)
+		return close(fd);
+	return -1;
 }

 int os_unlink(const char *pathname)
--
2.28.0