#include "global.h"
int
srv_Socket(cfg_root_t * __restrict cfg)
{
int s = -1, n = 1;
struct hostent *host;
ait_val_t v;
u_short port;
io_sockaddr_t sa;
ioTRACE(2);
cfg_loadAttribute(cfg, "mqttd", "port", &v, MQTT_PORT);
port = strtol(AIT_GET_STR(&v), NULL, 0);
AIT_FREE_VAL(&v);
cfg_loadAttribute(cfg, "mqttd", "listen", &v, MQTT_HOST);
host = gethostbyname(AIT_GET_STR(&v));
AIT_FREE_VAL(&v);
if (!host) {
ioERROR(h_errno, "%s", hstrerror(h_errno));
return -1;
}
switch (host->h_addrtype) {
case AF_INET:
sa.sin.sin_len = sizeof(struct sockaddr_in);
sa.sin.sin_family = AF_INET;
sa.sin.sin_port = htons(port);
memcpy(&sa.sin.sin_addr, host->h_addr, sizeof sa.sin.sin_addr);
break;
case AF_INET6:
sa.sin6.sin6_len = sizeof(struct sockaddr_in6);
sa.sin6.sin6_family = AF_INET6;
sa.sin6.sin6_port = htons(port);
memcpy(&sa.sin6.sin6_addr, host->h_addr, sizeof sa.sin6.sin6_addr);
break;
default:
ioERROR(host->h_addrtype, "unsupported socket type");
return -1;
}
s = socket(sa.ss.ss_family, SOCK_STREAM, 0);
if (s == -1) {
ioSYSERR(0);
return -1;
}
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {
ioSYSERR(0);
close(s);
return -1;
}
if (bind(s, (struct sockaddr*) &sa.ss, sa.ss.ss_len) == -1) {
ioSYSERR(0);
close(s);
return -1;
}
return s;
}
int
srv_Close(int s)
{
ioTRACE(2);
if (s > STDERR_FILENO)
shutdown(s, SHUT_RDWR);
return close(s);
}
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