/* Initialise the resolver. Open a socket and bind it to the address
of the server. return -1 if something goes wrong, otherwise 0 */
int
redboot_dns_res_init(void)
{
memset((char *)&server, 0, sizeof(server));
server.sin_len = sizeof(server);
server.sin_family = AF_INET;
server.sin_port = htons(DOMAIN_PORT);
cyg_drv_mutex_init(&dns_mutex);
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG
{
ip_addr_t dns_ip;
flash_get_config("dns_ip", &dns_ip, CONFIG_IP);
if (dns_ip[0] == 0 && dns_ip[1] == 0 && dns_ip[2] == 0 && dns_ip[3] == 0)
return -1;
memcpy(&server.sin_addr, &dns_ip, sizeof(dns_ip));
/* server config is valid */
s = 0;
}
#else
// Use static configuration
set_dns(__Xstr(CYGPKG_REDBOOT_NETWORKING_DNS_IP));
#endif
return 0;
}
/* Initialise the resolver. Open a socket and bind it to the address
of the server. return -1 if something goes wrong, otherwise 0 */
int
redboot_dns_res_init(void)
{
#ifdef CYGPKG_REDBOOT_NETWORKING_DNS_FCONFIG_DOMAIN
char *dns_domain = NULL;
#endif
memset((char *)&server, 0, sizeof(server));
server.sin_len = sizeof(server);
server.sin_family = AF_INET;
server.sin_port = htons(DOMAIN_PORT);
cyg_drv_mutex_init(&dns_mutex);
/* Set the default DNS domain first, so that it can be overwritten
latter */
#ifdef CYGPKG_REDBOOT_NETWORKING_DNS_DEFAULT_DOMAIN
setdomainname(__Xstr(CYGPKG_REDBOOT_NETWORKING_DNS_DEFAULT_DOMAIN),
strlen(__Xstr(CYGPKG_REDBOOT_NETWORKING_DNS_DEFAULT_DOMAIN)));
#endif
/* Set the domain name from flash so that DHCP can later
overwrite it. */
#ifdef CYGPKG_REDBOOT_NETWORKING_DNS_FCONFIG_DOMAIN
flash_get_config("dns_domain", &dns_domain, CONFIG_STRING);
if(dns_domain != NULL && dns_domain[0] != '\0')
setdomainname(dns_domain, strlen(dns_domain));
#endif
/* If we got a DNS server address from the DHCP/BOOTP, then use
that address */
if ( __bootp_dns_set ) {
memcpy(&server.sin_addr, &__bootp_dns_addr,
sizeof(__bootp_dns_addr) );
#ifdef CYGPKG_REDBOOT_NETWORKING_DNS_DHCP_DOMAIN
if(__bootp_dns_domain_set)
setdomainname(__bootp_dns_domain, strlen(__bootp_dns_domain));
#endif
/* server config is valid */
s = 0;
}
else {
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG
{
ip_addr_t dns_ip;
flash_get_config("dns_ip", &dns_ip, CONFIG_IP);
if (dns_ip[0] == 0 && dns_ip[1] == 0 &&
dns_ip[2] == 0 && dns_ip[3] == 0)
return -1;
memcpy(&server.sin_addr, &dns_ip, sizeof(dns_ip));
/* server config is valid */
s = 0;
}
#else
// Use static configuration. If CYGPKG_REDBOOT_NETWORKING_DNS_IP
// is valid s will set set as a side effect.
set_dns(__Xstr(CYGPKG_REDBOOT_NETWORKING_DNS_IP));
#endif
}
return 0;
}
