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Add unix domain socket support to redbean

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This commit is contained in:
Justine Tunney 2022-06-22 03:04:25 -07:00
parent 4b23985b7f
commit fc097ac275
25 changed files with 594 additions and 172 deletions
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19
libc/sock/sendmsg.c
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@ -44,27 +44,22 @@
*/
ssize_t sendmsg(int fd, const struct msghdr *msg, int flags) {
int64_t rc;
char addr2[128];
struct msghdr msg2;
union sockaddr_storage_bsd bsd;
if (IsAsan() && !__asan_is_valid_msghdr(msg)) {
rc = efault();
} else if (!IsWindows()) {
if (IsBsd() && msg->msg_name) {
/* An optional address is provided, convert it to the BSD form */
if (msg->msg_namelen <= sizeof(addr2)) {
memcpy(&addr2[0], msg->msg_name, msg->msg_namelen);
sockaddr2bsd(&addr2[0]);
/* Copy all of msg (except for msg_name) into the new ephemeral local */
memcpy(&msg2, msg, sizeof(msg2));
msg2.msg_name = &addr2[0];
memcpy(&msg2, msg, sizeof(msg2));
if (!(rc = sockaddr2bsd(msg->msg_name, msg->msg_namelen, &bsd,
&msg2.msg_namelen))) {
msg2.msg_name = &bsd.sa;
rc = sys_sendmsg(fd, &msg2, flags);
} else {
rc = einval();
}
} else {
rc = sys_sendmsg(fd, msg, flags);
}
/* else do the syscall */
rc = sys_sendmsg(fd, msg, flags);
} else if (__isfdopen(fd)) {
if (msg->msg_control) {
rc = einval(); /* control msg not supported */