Here is a patch which fixes the problem.
diff --git a/slirp/tcp_input.c b/slirp/tcp_input.c
index 2027a75..696867f 100644
--- a/slirp/tcp_input.c
+++ b/slirp/tcp_input.c
@@ -587,7 +587,7 @@ findso:
if ((tcp_fconnect(so, so->so_ffamily) == -1) &&
#if defined(_WIN32)
- socket_error() != WSAEWOULDBLOCK
+ socket_error() != EAGAIN
#else
(errno != EINPROGRESS) && (errno != EWOULDBLOCK)
#endif
Latest QEMU needs a slightly different patch:
diff --git a/slirp/tcp_input.c b/slirp/tcp_input.c
index 5433e7f..3be2d2f 100644
--- a/slirp/tcp_input.c
+++ b/slirp/tcp_input.c
@@ -659,6 +659,7 @@ findso:
}
if ((tcp_fconnect(so, so->so_ffamily) == -1) &&
+ socket_error() != EAGAIN &&
(errno != EINPROGRESS) && (errno != EWOULDBLOCK)
) {
uint8_t code;
--
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https://bugs.launchpad.net/bugs/1569988
Title:
[2.6] user network broken reaching foreign servers on Win64
Status in QEMU:
New
Bug description:
Both on master and, starting with 2016-03-22 builds from
http://qemu.weilnetz.de/w64/, user mode network can't reach foreign
servers. For example, wget http://mifritscher resolves the DNS, but
then the message "Network is unreachable" occures. 2016-03-03 works
fine. I suspect the IPv6 changes. My connection is IPv4 only.
I tested via knoppix 7.6. The command line is
qemu-system-x86_64.exe -m 512 -k de --cdrom
c:\Users\michaelfritscher\Downloads\linux\KNOPPIX_V7.4.2DVD-2014-09-28-DE.iso
-netdev user,id=mynet0,restrict=n -device e1000,netdev=mynet0
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