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[lwip-devel] [bug #52976] lwip_ioctl() FIONREAD crash.
From: |
hanhui |
Subject: |
[lwip-devel] [bug #52976] lwip_ioctl() FIONREAD crash. |
Date: |
Fri, 26 Jan 2018 05:21:20 -0500 (EST) |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36 |
URL:
<http://savannah.nongnu.org/bugs/?52976>
Summary: lwip_ioctl() FIONREAD crash.
Project: lwIP - A Lightweight TCP/IP stack
Submitted by: hanhui03
Submitted on: Fri 26 Jan 2018 10:21:18 AM UTC
Category: sockets/netconn
Severity: 3 - Normal
Item Group: Crash Error
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
lwIP version: git head
_______________________________________________________
Details:
int
lwip_ioctl(int s, long cmd, void *argp)
{
...
case FIONREAD:
...
/* Check if there is data left from the last recv operation. /maq 041215 */
if (sock->lastdata.netbuf) {
if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_TCP) {
recv_avail += sock->lastdata.pbuf->tot_len;
} else {
recv_avail += sock->lastdata.netbuf->p->tot_len;
}
}
should be:
/* Check if there is data left from the last recv operation. /maq 041215 */
if (sock->lastdata.netbuf) {
if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_TCP) {
recv_avail += sock->lastdata.netbuf->p->tot_len;
} else {
recv_avail += sock->lastdata.pbuf->tot_len;
}
}
...
}
Han.hui
_______________________________________________________
Reply to this item at:
<http://savannah.nongnu.org/bugs/?52976>
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- [lwip-devel] [bug #52976] lwip_ioctl() FIONREAD crash.,
hanhui <=