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On Windows, prefer EXCLADDRINUSE, then REUSEADDR

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This commit is contained in:
cpq 2023-05-09 11:25:18 +01:00
parent fd86eb7aa7
commit 717c9dbe89
2 changed files with 12 additions and 14 deletions
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13
mongoose.c
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@ -4547,7 +4547,12 @@ bool mg_open_listener(struct mg_connection *c, const char *url) {
if ((fd = socket(af, type, proto)) == MG_INVALID_SOCKET) {
MG_ERROR(("socket: %d", MG_SOCK_ERR(-1)));
#if defined(SO_REUSEADDR) && (!defined(LWIP_SOCKET) || SO_REUSE)
#if defined(SO_EXCLUSIVEADDRUSE)
} else if ((rc = setsockopt(fd, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,
(char *) &on, sizeof(on))) != 0) {
// "Using SO_REUSEADDR and SO_EXCLUSIVEADDRUSE"
MG_ERROR(("setsockopt(SO_EXCLUSIVEADDRUSE): %d %d", on, MG_SOCK_ERR(rc)));
#elif defined(SO_REUSEADDR) && (!defined(LWIP_SOCKET) || SO_REUSE)
} else if ((rc = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &on,
sizeof(on))) != 0) {
// 1. SO_REUSEADDR semantics on UNIX and Windows is different. On
@ -4561,12 +4566,6 @@ bool mg_open_listener(struct mg_connection *c, const char *url) {
// won't work! (setsockopt will return EINVAL)
MG_ERROR(("setsockopt(SO_REUSEADDR): %d", MG_SOCK_ERR(rc)));
#endif
#if defined(SO_EXCLUSIVEADDRUSE)
} else if ((rc = setsockopt(fd, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,
(char *) &on, sizeof(on))) != 0) {
// "Using SO_REUSEADDR and SO_EXCLUSIVEADDRUSE"
MG_ERROR(("setsockopt(SO_EXCLUSIVEADDRUSE): %d", MG_SOCK_ERR(rc)));
#endif
#if defined(IPV6_V6ONLY)
} else if (c->loc.is_ip6 &&
(rc = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (char *) &on,

13
src/sock.c
View File

@ -193,7 +193,12 @@ bool mg_open_listener(struct mg_connection *c, const char *url) {
if ((fd = socket(af, type, proto)) == MG_INVALID_SOCKET) {
MG_ERROR(("socket: %d", MG_SOCK_ERR(-1)));
#if defined(SO_REUSEADDR) && (!defined(LWIP_SOCKET) || SO_REUSE)
#if defined(SO_EXCLUSIVEADDRUSE)
} else if ((rc = setsockopt(fd, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,
(char *) &on, sizeof(on))) != 0) {
// "Using SO_REUSEADDR and SO_EXCLUSIVEADDRUSE"
MG_ERROR(("setsockopt(SO_EXCLUSIVEADDRUSE): %d %d", on, MG_SOCK_ERR(rc)));
#elif defined(SO_REUSEADDR) && (!defined(LWIP_SOCKET) || SO_REUSE)
} else if ((rc = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &on,
sizeof(on))) != 0) {
// 1. SO_REUSEADDR semantics on UNIX and Windows is different. On
@ -207,12 +212,6 @@ bool mg_open_listener(struct mg_connection *c, const char *url) {
// won't work! (setsockopt will return EINVAL)
MG_ERROR(("setsockopt(SO_REUSEADDR): %d", MG_SOCK_ERR(rc)));
#endif
#if defined(SO_EXCLUSIVEADDRUSE)
} else if ((rc = setsockopt(fd, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,
(char *) &on, sizeof(on))) != 0) {
// "Using SO_REUSEADDR and SO_EXCLUSIVEADDRUSE"
MG_ERROR(("setsockopt(SO_EXCLUSIVEADDRUSE): %d", MG_SOCK_ERR(rc)));
#endif
#if defined(IPV6_V6ONLY)
} else if (c->loc.is_ip6 &&
(rc = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (char *) &on,