static int lib_dns_query(FAR const char *hostname, FAR struct sockaddr *addr, socklen_t *addrlen) { int sd; int ret; /* Create and bind a socket to the DNS server */ sd = dns_bind(); if (sd < 0) { return sd; } /* Perform the query to get the IP address */ ret = dns_query(sd, hostname, addr, addrlen); /* Release the socket */ close(sd); return ret; }
int discover_main(int argc, char *argv[]) { /* If this task is excecutated as an NSH built-in function, then the * network has already been configured by NSH's start-up logic. */ #ifndef CONFIG_NSH_BUILTIN_APPS struct in_addr addr; #if defined(CONFIG_EXAMPLES_DISCOVER_DHCPC) || defined(CONFIG_EXAMPLES_DISCOVER_NOMAC) uint8_t mac[IFHWADDRLEN]; #endif #ifdef CONFIG_EXAMPLES_DISCOVER_DHCPC void *handle; #endif /* Many embedded network interfaces must have a software assigned MAC */ #ifdef CONFIG_EXAMPLES_DISCOVER_NOMAC mac[0] = 0x00; mac[1] = 0xe0; mac[2] = 0xde; mac[3] = 0xad; mac[4] = 0xbe; mac[5] = 0xef; uip_setmacaddr("eth0", mac); #endif /* Set up our host address */ #ifdef CONFIG_EXAMPLES_DISCOVER_DHCPC addr.s_addr = 0; #else addr.s_addr = HTONL(CONFIG_EXAMPLES_DISCOVER_IPADDR); #endif uip_sethostaddr("eth0", &addr); /* Set up the default router address */ addr.s_addr = HTONL(CONFIG_EXAMPLES_DISCOVER_DRIPADDR); uip_setdraddr("eth0", &addr); /* Setup the subnet mask */ addr.s_addr = HTONL(CONFIG_EXAMPLES_DISCOVER_NETMASK); uip_setnetmask("eth0", &addr); #ifdef CONFIG_EXAMPLES_DISCOVER_DHCPC /* Set up the resolver */ dns_bind(); /* Get the MAC address of the NIC */ uip_getmacaddr("eth0", mac); /* Set up the DHCPC modules */ handle = dhcpc_open(&mac, IFHWADDRLEN); /* Get an IP address. Note: there is no logic here for renewing the address in this * example. The address should be renewed in ds.lease_time/2 seconds. */ printf("Getting IP address\n"); if (handle) { struct dhcpc_state ds; (void)dhcpc_request(handle, &ds); uip_sethostaddr("eth1", &ds.ipaddr); if (ds.netmask.s_addr != 0) { uip_setnetmask("eth0", &ds.netmask); } if (ds.default_router.s_addr != 0) { uip_setdraddr("eth0", &ds.default_router); } if (ds.dnsaddr.s_addr != 0) { dns_setserver(&ds.dnsaddr); } dhcpc_close(handle); printf("IP: %s\n", inet_ntoa(ds.ipaddr)); } #endif /* CONFIG_EXAMPLES_DISCOVER_DHCPC */ #endif /* CONFIG_NSH_BUILTIN_APPS */ if (discover_start(NULL) < 0) { ndbg("Could not start discover daemon.\n"); return ERROR; } return OK; }
static int tcpecho_netsetup() { /* If this task is excecutated as an NSH built-in function, then the * network has already been configured by NSH's start-up logic. */ #ifndef CONFIG_NSH_BUILTIN_APPS struct in_addr addr; #if defined(CONFIG_EXAMPLES_TCPECHO_DHCPC) || defined(CONFIG_EXAMPLES_TCPECHO_NOMAC) uint8_t mac[IFHWADDRLEN]; #endif #ifdef CONFIG_EXAMPLES_TCPECHO_DHCPC struct dhcpc_state ds; void *handle; #endif /* Many embedded network interfaces must have a software assigned MAC */ #ifdef CONFIG_EXAMPLES_TCPECHO_NOMAC mac[0] = 0x00; mac[1] = 0xe0; mac[2] = 0xde; mac[3] = 0xad; mac[4] = 0xbe; mac[5] = 0xef; netlib_setmacaddr("eth0", mac); #endif /* Set up our host address */ #ifdef CONFIG_EXAMPLES_TCPECHO_DHCPC addr.s_addr = 0; #else addr.s_addr = HTONL(CONFIG_EXAMPLES_TCPECHO_IPADDR); #endif netlib_sethostaddr("eth0", &addr); /* Set up the default router address */ addr.s_addr = HTONL(CONFIG_EXAMPLES_TCPECHO_DRIPADDR); netlib_setdraddr("eth0", &addr); /* Setup the subnet mask */ addr.s_addr = HTONL(CONFIG_EXAMPLES_TCPECHO_NETMASK); netlib_setnetmask("eth0", &addr); #ifdef CONFIG_EXAMPLES_TCPECHO_DHCPC /* Set up the resolver */ dns_bind(); /* Get the MAC address of the NIC */ netlib_getmacaddr("eth0", mac); /* Set up the DHCPC modules */ handle = dhcpc_open(&mac, IFHWADDRLEN); /* Get an IP address. Note: there is no logic here for renewing the address in this * example. The address should be renewed in ds.lease_time/2 seconds. */ if (!handle) { return ERROR; } if (dhcpc_request(handle, &ds) != OK) { return ERROR; } netlib_sethostaddr("eth1", &ds.ipaddr); if (ds.netmask.s_addr != 0) { netlib_setnetmask("eth0", &ds.netmask); } if (ds.default_router.s_addr != 0) { netlib_setdraddr("eth0", &ds.default_router); } if (ds.dnsaddr.s_addr != 0) { dns_setserver(&ds.dnsaddr); } dhcpc_close(handle); printf("IP: %s\n", inet_ntoa(ds.ipaddr)); #endif /* CONFIG_EXAMPLES_TCPECHO_DHCPC */ #endif /* CONFIG_NSH_BUILTIN_APPS */ return OK; }
int uip_main(int argc, char *argv[]) { struct in_addr addr; #if defined(CONFIG_EXAMPLES_UIP_DHCPC) || defined(CONFIG_EXAMPLES_UIP_NOMAC) uint8_t mac[IFHWADDRLEN]; #endif #ifdef CONFIG_EXAMPLES_UIP_DHCPC void *handle; #endif /* Many embedded network interfaces must have a software assigned MAC */ #ifdef CONFIG_EXAMPLES_UIP_NOMAC mac[0] = 0x00; mac[1] = 0xe0; mac[2] = 0xde; mac[3] = 0xad; mac[4] = 0xbe; mac[5] = 0xef; uip_setmacaddr("eth0", mac); #endif /* Set up our host address */ #ifdef CONFIG_EXAMPLES_UIP_DHCPC addr.s_addr = 0; #else addr.s_addr = HTONL(CONFIG_EXAMPLES_UIP_IPADDR); #endif uip_sethostaddr("eth0", &addr); /* Set up the default router address */ addr.s_addr = HTONL(CONFIG_EXAMPLES_UIP_DRIPADDR); uip_setdraddr("eth0", &addr); /* Setup the subnet mask */ addr.s_addr = HTONL(CONFIG_EXAMPLES_UIP_NETMASK); uip_setnetmask("eth0", &addr); #ifdef CONFIG_EXAMPLES_UIP_DHCPC /* Set up the resolver */ dns_bind(); /* Get the MAC address of the NIC */ uip_getmacaddr("eth0", mac); /* Set up the DHCPC modules */ handle = dhcpc_open(&mac, IFHWADDRLEN); /* Get an IP address. Note: there is no logic here for renewing the address in this * example. The address should be renewed in ds.lease_time/2 seconds. */ printf("Getting IP address\n"); if (handle) { struct dhcpc_state ds; (void)dhcpc_request(handle, &ds); uip_sethostaddr("eth1", &ds.ipaddr); if (ds.netmask.s_addr != 0) { uip_setnetmask("eth0", &ds.netmask); } if (ds.default_router.s_addr != 0) { uip_setdraddr("eth0", &ds.default_router); } if (ds.dnsaddr.s_addr != 0) { dns_setserver(&ds.dnsaddr); } dhcpc_close(handle); printf("IP: %s\n", inet_ntoa(ds.ipaddr)); } #endif #ifdef CONFIG_NET_TCP printf("Starting webserver\n"); httpd_init(); cgi_register(); httpd_listen(); #endif while (1) { sleep(3); printf("uip_main: Still running\n"); #if CONFIG_NFILE_DESCRIPTORS > 0 fflush(stdout); #endif } return 0; }