/*
* Send a reply, either positive or negative, to the client
*/
static int rpc_send(rpc_ctx_t* ctx)
{
struct iovec v[MAX_MSG_CHUNKS];
int f;
int n;
int ret;
/* Send the reply only once */
if (ctx->reply_sent) return 1;
else ctx->reply_sent = 1;
if ((n=build_iovec(ctx, v, MAX_MSG_CHUNKS))<0)
goto error;
if (ctx->send_h->type==S_FIFO){
/* Open the reply file */
f = open_reply_pipe(ctx->reply_file);
if (f == -1) {
ERR("No reply pipe %s\n", ctx->reply_file);
return -1;
}
ret=tsend_dgram_ev(f, v, n, FIFO_TX_TIMEOUT);
close(f);
}else{
ret=sock_send_v(ctx->send_h, v, n);
}
return (ret>=0)?0:-1;
error:
ERR("rpc_send fifo error\n");
return -1;
}
static int write_to_unixsock(char* sockname, int cnt)
{
int len, e;
struct sockaddr_un dest;
if (!sockname) {
LM_ERR("invalid parameter\n");
return E_UNSPEC;
}
len = strlen(sockname);
if (len == 0) {
LM_ERR("empty socket name\n");
return -1;
} else if (len > 107) {
LM_ERR("socket name too long\n");
return -1;
}
memset(&dest, 0, sizeof(dest));
dest.sun_family = PF_LOCAL;
memcpy(dest.sun_path, sockname, len);
#ifdef HAVE_SOCKADDR_SA_LEN
dest.sun_len = len;
#endif
e = connect(sock, (struct sockaddr*)&dest, SUN_LEN(&dest));
#ifdef HAVE_CONNECT_ECONNRESET_BUG
/*
* Workaround for a nasty bug in BSD kernels dated back
* to the Berkeley days, so that can be found in many modern
* BSD-derived kernels. Workaround should be pretty harmless since
* in normal conditions connect(2) can never return ECONNRESET.
*/
if ((e == -1) && (errno == ECONNRESET))
e = 0;
#endif
if (e == -1) {
LM_ERR("failed to connect: %s\n", strerror(errno));
return -1;
}
if (tsend_dgram_ev(sock, (struct iovec*)(void*)lines_eol, 2 * cnt,
tm_unix_tx_timeout * 1000) < 0) {
LM_ERR("writev failed: %s\n", strerror(errno));
return -1;
}
return 0;
}
