From 9977c8943a56b06908555ea6d1706142a3c9da4d Mon Sep 17 00:00:00 2001 From: Mark McLoughlin Date: Wed, 22 Jul 2009 09:11:38 +0100 Subject: [PATCH] Make tcp_chr_read() use recvmsg() Split out tcp_chr_recv() out of tcp_chr_read() and implement it on non-win32 using recvmsg(). This is needed for a subsequent patch which implements SCM_RIGHTS support. Signed-off-by: Mark McLoughlin Signed-off-by: Anthony Liguori --- qemu-char.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/qemu-char.c b/qemu-char.c index 287e0cd326..9886228151 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -1907,6 +1907,29 @@ static void tcp_chr_process_IAC_bytes(CharDriverState *chr, *size = j; } +#ifndef WIN32 +static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) +{ + TCPCharDriver *s = chr->opaque; + struct msghdr msg = { 0, }; + struct iovec iov[1]; + + iov[0].iov_base = buf; + iov[0].iov_len = len; + + msg.msg_iov = iov; + msg.msg_iovlen = 1; + + return recvmsg(s->fd, &msg, 0); +} +#else +static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) +{ + TCPCharDriver *s = chr->opaque; + return recv(s->fd, buf, len, 0); +} +#endif + static void tcp_chr_read(void *opaque) { CharDriverState *chr = opaque; @@ -1919,7 +1942,7 @@ static void tcp_chr_read(void *opaque) len = sizeof(buf); if (len > s->max_size) len = s->max_size; - size = recv(s->fd, (void *)buf, len, 0); + size = tcp_chr_recv(chr, (void *)buf, len); if (size == 0) { /* connection closed */ s->connected = 0; -- 2.11.0