#include "global.h"
int
srv_Socket(sl_config * __restrict cfg)
{
int s = -1, n = 1;
struct hostent *host;
char szStr[STRSIZ];
u_short port;
struct sockaddr_storage ss;
struct sockaddr_in *sin = (struct sockaddr_in*) &ss;
struct sockaddr_in6 *sin6 = (struct sockaddr_in6*) &ss;
ioTRACE(2);
cfg_LoadAttribute(cfg, CFG("mqttd"), CFG("port"), CFG(szStr), sizeof szStr, MQTT_PORT);
port = strtol(szStr, NULL, 0);
cfg_LoadAttribute(cfg, CFG("mqttd"), CFG("listen"), CFG(szStr), sizeof szStr, MQTT_HOST);
host = gethostbyname(szStr);
if (!host) {
printf("Error:: resolver #%d - %s\n", h_errno, hstrerror(h_errno));
return -1;
}
switch (host->h_addrtype) {
case AF_INET:
sin->sin_len = sizeof(struct sockaddr_in);
sin->sin_family = AF_INET;
sin->sin_port = htons(port);
memcpy(&sin->sin_addr, host->h_addr, sizeof sin->sin_addr);
break;
case AF_INET6:
sin6->sin6_len = sizeof(struct sockaddr_in6);
sin6->sin6_family = AF_INET6;
sin6->sin6_port = htons(port);
memcpy(&sin6->sin6_addr, host->h_addr, sizeof sin6->sin6_addr);
break;
default:
printf("Error:: unsupported socket type %d\n", host->h_addrtype);
return -1;
}
s = socket(ss.ss_family, SOCK_STREAM, 0);
if (s == -1) {
printf("Error:: socket() #%d - %s\n", errno, strerror(errno));
return -1;
}
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {
printf("Error:: setsockopt(SO_REUSEADDR) #%d - %s\n", errno, strerror(errno));
close(s);
return -1;
}
if (bind(s, (struct sockaddr*) &ss, ss.ss_len) == -1) {
printf("Error:: bind() #%d - %s\n", errno, strerror(errno));
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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