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Fix #1382 - use sendto for UDP send

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Sergey Lyubka committed 2021-10-22 08:56:45 +01:00
1 parent c62c8ea4dd
commit 7c5e67b272
5 files changed
+48 -36
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src/sock.c
+13 -6
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@@ -101,7 +101,14 @@ static struct mg_connection *alloc_conn(struct mg_mgr *mgr, bool is_client,
}
static long mg_sock_send(struct mg_connection *c, const void *buf, size_t len) {
long n = send(FD(c), (char *) buf, len, MSG_NONBLOCKING);
long n;
if (c->is_udp) {
union usa usa;
socklen_t slen = tousa(&c->peer, &usa);
n = sendto(FD(c), (char *) buf, len, 0, &usa.sa, slen);
} else {
n = send(FD(c), (char *) buf, len, MSG_NONBLOCKING);
}
return n == 0 ? -1 : n < 0 && mg_sock_would_block() ? 0 : n;
}
@@ -367,12 +374,12 @@ static void accept_conn(struct mg_mgr *mgr, struct mg_connection *lsn) {
SOCKET fd = accept(FD(lsn), &usa.sa, &sa_len);
if (fd == INVALID_SOCKET) {
#if MG_ARCH == MG_ARCH_AZURERTOS
// AzureRTOS, in non-block socket mode can mark listening socket readable
// even it is not. See comment for 'select' func implementation in nx_bsd.c
// That's not an error, just should try later
if (MG_SOCK_ERRNO != EAGAIN)
// AzureRTOS, in non-block socket mode can mark listening socket readable
// even it is not. See comment for 'select' func implementation in nx_bsd.c
// That's not an error, just should try later
if (MG_SOCK_ERRNO != EAGAIN)
#endif
LOG(LL_ERROR, ("%lu accept failed, errno %d", lsn->id, MG_SOCK_ERRNO));
LOG(LL_ERROR, ("%lu accept failed, errno %d", lsn->id, MG_SOCK_ERRNO));
#if (!defined(_WIN32) && (MG_ARCH != MG_ARCH_FREERTOS_TCP))
} else if ((long) fd >= FD_SETSIZE) {
LOG(LL_ERROR, ("%ld > %ld", (long) fd, (long) FD_SETSIZE));