From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 19 Nov 2023 14:39:59 +0000 (+0100)
Subject: fix infinite loop on client poll
X-Git-Url: http://git.openwrt.org/openwrt/openwrt.git;lede-17.01?a=commitdiff_plain;h=55e080232602529ed6fcc8a12decaca95ec61baa;p=project%2Fudebug.git

fix infinite loop on client poll

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/client.c b/client.c
index 1fc90d8..11d1c52 100644
--- a/client.c
+++ b/client.c
@@ -224,12 +224,12 @@ static void client_fd_cb(struct uloop_fd *fd, unsigned int events)
 	pfd = (int *)CMSG_DATA(cmsg);
 	msg.msg_controllen = cmsg->cmsg_len;
 
+retry:
 	if (fd->eof) {
 		client_free(cl);
 		return;
 	}
 
-retry:
 	iov.iov_base = &cl->rx_buf;
 	iov.iov_len = min_sz;
 	if (!cl->rx_ofs) {
@@ -239,6 +239,8 @@ retry:
 		len = recvmsg(fd->fd, &msg, 0);
 		if (len < 0)
 			return;
+		if (!len)
+			fd->eof = true;
 
 		cl->rx_ofs = len;
 		cl->rx_fd = *pfd;