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Listen on both ipv6 and ipv4

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This commit is contained in:
Christopher Wellons
2019-02-03 12:48:37 -05:00
parent 2f79375360
commit 09bb8be32a
1 changed files with 22 additions and 10 deletions
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32
endlessh.c
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@@ -416,25 +416,37 @@ usage(FILE *f)
static int
server_create(int port)
{
int r, s, dummy;
int r, s, value;
s = socket(AF_INET, SOCK_STREAM, 0);
s = socket(AF_INET6, SOCK_STREAM, 0);
logmsg(LOG_DEBUG, "socket() = %d", s);
if (s == -1) die();
dummy = 1;
r = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &dummy, sizeof(dummy));
if (r == -1) die();
/* Socket options are best effort, allowed to fail */
struct sockaddr_in addr = {
.sin_family = AF_INET,
.sin_port = htons(port),
.sin_addr.s_addr = htonl(INADDR_ANY)
value = 1;
r = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &value, sizeof(value));
logmsg(LOG_DEBUG, "setsockopt(SO_REUSEADDR, true) = %d", r);
if (r == -1)
logmsg(LOG_DEBUG, "errno = %d, %s", errno, strerror(errno));
value = 0;
r = setsockopt(s, SOL_SOCKET, IPV6_V6ONLY, &value, sizeof(value));
logmsg(LOG_DEBUG, "setsockopt(IPV6_V6ONLY, false) = %d", r);
if (r == -1)
logmsg(LOG_DEBUG, "errno = %d, %s", errno, strerror(errno));
struct sockaddr_in6 addr = {
.sin6_family = AF_INET6,
.sin6_port = htons(port),
.sin6_addr = in6addr_any
};
r = bind(s, (void *)&addr, sizeof(addr));
logmsg(LOG_DEBUG, "bind(port=%d) = %d", port, r);
if (r == -1) die();
r = listen(s, INT_MAX);
logmsg(LOG_DEBUG, "listen(port=%d) = %d", port, r);
logmsg(LOG_DEBUG, "listen() = %d", r);
if (r == -1) die();
return s;