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Code Issues 1 Releases Wiki Activity

Address issue #1558

Browse Source 
Don't attempt SO_REUSEPORT on unix domain sockets since it doesn't make
sense and may cause a failure to bind without extra effort by the
programmer.
This commit is contained in:
Calvin Rose
2025-02-07 21:04:17 -06:00
parent 5f550ea5d4
commit 9a892363a3
3 changed files with 15 additions and 5 deletions
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2
src/boot/boot.janet
View File

@@ -2283,7 +2283,7 @@
(def rawget (if (= tx :struct) struct/rawget table/rawget))
(var ret false)
(eachp [k v] x
(if (deep-not= (rawget y k) v) (break (set ret true))))
(if (deep-not= (rawget y k) v) (break (set ret true))))
ret))
(= tx :buffer) (not= 0 (- (length x) (length y)) (memcmp x y))
(not= x y))))

12
src/core/net.c
View File

@@ -578,17 +578,21 @@ JANET_CORE_FN(cfun_net_connect,
net_sched_connect(stream);
}
static const char *serverify_socket(JSock sfd, int reuse) {
static const char *serverify_socket(JSock sfd, int reuse_addr, int reuse_port) {
/* Set various socket options */
int enable = 1;
if (reuse) {
if (reuse_addr) {
if (setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, (char *) &enable, sizeof(int)) < 0) {
return "setsockopt(SO_REUSEADDR) failed";
}
}
if (reuse_port) {
#ifdef SO_REUSEPORT
if (setsockopt(sfd, SOL_SOCKET, SO_REUSEPORT, &enable, sizeof(int)) < 0) {
return "setsockopt(SO_REUSEPORT) failed";
}
#else
(void) reuse_port;
#endif
}
janet_net_socknoblock(sfd);
@@ -668,7 +672,7 @@ JANET_CORE_FN(cfun_net_listen,
janet_free(ai);
janet_panicf("could not create socket: %V", janet_ev_lasterr());
}
const char *err = serverify_socket(sfd, reuse);
const char *err = serverify_socket(sfd, reuse, 0);
if (NULL != err || bind(sfd, (struct sockaddr *)ai, sizeof(struct sockaddr_un))) {
JSOCKCLOSE(sfd);
janet_free(ai);
@@ -691,7 +695,7 @@ JANET_CORE_FN(cfun_net_listen,
sfd = socket(rp->ai_family, rp->ai_socktype | JSOCKFLAGS, rp->ai_protocol);
#endif
if (!JSOCKVALID(sfd)) continue;
const char *err = serverify_socket(sfd, reuse);
const char *err = serverify_socket(sfd, reuse, reuse);
if (NULL != err) {
JSOCKCLOSE(sfd);
continue;

6
test/suite-ev.janet
View File

@@ -484,4 +484,10 @@
(pp :foo)))
(ev/chan-close c)
# soreuseport on unix domain sockets
(compwhen (= :linux (os/which))
(assert-no-error "unix-domain socket reuseaddr"
(let [s (net/listen :unix "./unix-domain-socket" :stream)]
(:close s))))
(end-suite)