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338 lines
9.7 KiB
338 lines
9.7 KiB
--- a/main.c
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+++ b/main.c
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@@ -69,6 +69,7 @@ static void usage(const char *argv0) {
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#if IR
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" -i [<filename>]\tEnable lirc remote control support (lirc config file ~/.lircrc used if filename not specified)\n"
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#endif
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+ " -I <interface>\t\tNetwork interface used to send discovery\n"
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" -m <mac addr>\t\tSet mac address, format: ab:cd:ef:12:34:56\n"
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" -M <modelname>\tSet the squeezelite player model name sent to the server (default: " MODEL_NAME_STRING ")\n"
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" -n <name>\t\tSet the player name\n"
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@@ -197,6 +198,8 @@ int main(int argc, char **argv) {
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char *modelname = NULL;
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char *logfile = NULL;
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u8_t mac[6];
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+ char *iface = NULL;
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+ in_addr_t bcast_addr = 0;
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unsigned stream_buf_size = STREAMBUF_SIZE;
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unsigned output_buf_size = 0; // set later
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unsigned rates[MAX_SUPPORTED_SAMPLERATES] = { 0 };
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@@ -233,6 +236,7 @@ int main(int argc, char **argv) {
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log_level log_ir = lWARN;
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#endif
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+ memset(mac, 0, sizeof(mac));
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char *optarg = NULL;
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int optind = 1;
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int i;
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@@ -240,8 +244,6 @@ int main(int argc, char **argv) {
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#define MAXCMDLINE 512
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char cmdline[MAXCMDLINE] = "";
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- get_mac(mac);
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-
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for (i = 0; i < argc && (strlen(argv[i]) + strlen(cmdline) + 2 < MAXCMDLINE); i++) {
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strcat(cmdline, argv[i]);
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strcat(cmdline, " ");
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@@ -249,7 +251,7 @@ int main(int argc, char **argv) {
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while (optind < argc && strlen(argv[optind]) >= 2 && argv[optind][0] == '-') {
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char *opt = argv[optind] + 1;
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- if (strstr("oabcCdefmMnNpPrs"
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+ if (strstr("oabcCdefImMnNpPrs"
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#if ALSA
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"UV"
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#endif
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@@ -334,6 +336,9 @@ int main(int argc, char **argv) {
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case 'f':
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logfile = optarg;
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break;
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+ case 'I':
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+ iface = optarg;
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+ break;
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case 'm':
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{
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int byte = 0;
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@@ -556,6 +561,11 @@ int main(int argc, char **argv) {
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winsock_init();
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#endif
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+ if (!(bcast_addr = get_iface_info(log_slimproto, iface, mac))) {
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+ fprintf(stderr, "Error binding to network or none given\n");
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+ exit(1);
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+ }
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+
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stream_init(log_stream, stream_buf_size);
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if (!strcmp(output_device, "-")) {
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@@ -599,7 +609,7 @@ int main(int argc, char **argv) {
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exit(1);
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}
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- slimproto(log_slimproto, server, mac, name, namefile, modelname);
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+ slimproto(log_slimproto, server, bcast_addr, mac, name, namefile, modelname);
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decode_close();
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stream_close();
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--- a/squeezelite.h
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+++ b/squeezelite.h
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@@ -374,7 +374,7 @@ typedef enum { EVENT_TIMEOUT = 0, EVENT_
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char *next_param(char *src, char c);
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u32_t gettime_ms(void);
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-void get_mac(u8_t *mac);
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+in_addr_t get_iface_info(log_level level, char *iface, u8_t *mac);
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void set_nonblock(sockfd s);
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int connect_timeout(sockfd sock, const struct sockaddr *addr, socklen_t addrlen, int timeout);
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void server_addr(char *server, in_addr_t *ip_ptr, unsigned *port_ptr);
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@@ -426,7 +426,7 @@ void buf_init(struct buffer *buf, size_t
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void buf_destroy(struct buffer *buf);
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// slimproto.c
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-void slimproto(log_level level, char *server, u8_t mac[6], const char *name, const char *namefile, const char *modelname);
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+void slimproto(log_level level, char *server, in_addr_t bcast_addr, u8_t *mac, const char *name, const char *namefile, const char *modelname);
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void slimproto_stop(void);
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void wake_controller(void);
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--- a/slimproto.c
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+++ b/slimproto.c
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@@ -107,7 +107,7 @@ void send_packet(u8_t *packet, size_t le
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}
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}
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-static void sendHELO(bool reconnect, const char *fixed_cap, const char *var_cap, u8_t mac[6]) {
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+static void sendHELO(bool reconnect, const char *fixed_cap, const char *var_cap, u8_t *mac) {
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const char *base_cap = "Model=squeezelite,AccuratePlayPoints=1,HasDigitalOut=1,HasPolarityInversion=1,Firmware=" VERSION;
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struct HELO_packet pkt;
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@@ -730,7 +730,7 @@ void wake_controller(void) {
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wake_signal(wake_e);
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}
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-in_addr_t discover_server(void) {
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+in_addr_t discover_server(in_addr_t bcast_addr) {
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struct sockaddr_in d;
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struct sockaddr_in s;
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char *buf;
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@@ -746,7 +746,7 @@ in_addr_t discover_server(void) {
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memset(&d, 0, sizeof(d));
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d.sin_family = AF_INET;
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d.sin_port = htons(PORT);
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- d.sin_addr.s_addr = htonl(INADDR_BROADCAST);
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+ d.sin_addr.s_addr = bcast_addr;
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pollinfo.fd = disc_sock;
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pollinfo.events = POLLIN;
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@@ -777,7 +777,7 @@ in_addr_t discover_server(void) {
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#define FIXED_CAP_LEN 256
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#define VAR_CAP_LEN 128
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-void slimproto(log_level level, char *server, u8_t mac[6], const char *name, const char *namefile, const char *modelname) {
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+void slimproto(log_level level, char *server, in_addr_t bcast_addr, u8_t *mac, const char *name, const char *namefile, const char *modelname) {
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struct sockaddr_in serv_addr;
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static char fixed_cap[FIXED_CAP_LEN], var_cap[VAR_CAP_LEN] = "";
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bool reconnect = false;
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@@ -795,7 +795,7 @@ void slimproto(log_level level, char *se
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}
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if (!slimproto_ip) {
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- slimproto_ip = discover_server();
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+ slimproto_ip = discover_server(bcast_addr);
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}
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if (!slimproto_port) {
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@@ -870,7 +870,7 @@ void slimproto(log_level level, char *se
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// rediscover server if it was not set at startup
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if (!server && ++failed_connect > 5) {
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- slimproto_ip = serv_addr.sin_addr.s_addr = discover_server();
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+ slimproto_ip = serv_addr.sin_addr.s_addr = discover_server(bcast_addr);
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}
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} else {
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--- a/utils.c
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+++ b/utils.c
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@@ -21,11 +21,11 @@
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#include "squeezelite.h"
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#if LINUX || OSX || FREEBSD
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-#include <sys/ioctl.h>
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+#include <sys/types.h>
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#include <net/if.h>
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-#include <netdb.h>
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-#if FREEBSD
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#include <ifaddrs.h>
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+#include <netdb.h>
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+#if FREEBSD || OSX
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#include <net/if_dl.h>
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#include <net/if_types.h>
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#endif
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@@ -33,15 +33,11 @@
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#if WIN
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#include <iphlpapi.h>
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#endif
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-#if OSX
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-#include <net/if_dl.h>
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-#include <net/if_types.h>
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-#include <ifaddrs.h>
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-#include <netdb.h>
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-#endif
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#include <fcntl.h>
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+static log_level loglevel;
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+
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// logging functions
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const char *logtime(void) {
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static char buf[100];
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@@ -99,67 +95,101 @@ u32_t gettime_ms(void) {
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#endif
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}
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-// mac address
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-#if LINUX
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-// search first 4 interfaces returned by IFCONF
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-void get_mac(u8_t mac[]) {
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- struct ifconf ifc;
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- struct ifreq *ifr, *ifend;
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- struct ifreq ifreq;
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- struct ifreq ifs[4];
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-
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- mac[0] = mac[1] = mac[2] = mac[3] = mac[4] = mac[5] = 0;
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-
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- int s = socket(AF_INET, SOCK_DGRAM, 0);
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-
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- ifc.ifc_len = sizeof(ifs);
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- ifc.ifc_req = ifs;
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-
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- if (ioctl(s, SIOCGIFCONF, &ifc) == 0) {
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- ifend = ifs + (ifc.ifc_len / sizeof(struct ifreq));
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-
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- for (ifr = ifc.ifc_req; ifr < ifend; ifr++) {
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- if (ifr->ifr_addr.sa_family == AF_INET) {
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-
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- strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
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- if (ioctl (s, SIOCGIFHWADDR, &ifreq) == 0) {
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- memcpy(mac, ifreq.ifr_hwaddr.sa_data, 6);
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- if (mac[0]+mac[1]+mac[2] != 0) {
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- break;
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- }
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+// Get broadcast address for interface (given or first available)
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+// Return MAC address if none given
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+#if LINUX || OSX || FREEBSD
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+
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+in_addr_t get_iface_info(log_level level, char *iface, u8_t *mac) {
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+ struct ifaddrs *addrs, *ifa;
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+ struct sockaddr *sdl;
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+ char ifname[16];
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+ unsigned char *ptr;
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+ in_addr_t bcast_addr = 0;
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+ int have_mac = 0, have_ifname = 0;
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+
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+ loglevel = level;
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+
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+ // Check for non-zero MAC
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+ if ((mac[0] | mac[1] | mac[2]) != 0)
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+ have_mac = 1;
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+
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+ // Copy interface name, if it was provided.
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+ if (iface != NULL)
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+ {
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+ if( strlen(iface) > sizeof(ifname) )
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+ return -1;
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+
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+ strncpy(ifname, iface, sizeof(ifname));
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+ have_ifname = 1;
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+ }
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+
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+ if (getifaddrs(&addrs) == 0) {
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+ //iterate to find corresponding ethernet address
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+ for (ifa = addrs; ifa; ifa = ifa->ifa_next) {
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+ // Skip LOOPBACK interfaces, DOWN interfaces and interfaces that
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+ // don't support BROADCAST.
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+ if ((ifa->ifa_flags & IFF_LOOPBACK)
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+ || !(ifa->ifa_flags & IFF_UP)
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+ || !(ifa->ifa_flags & IFF_BROADCAST))
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+ {
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+ continue;
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+ }
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+
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+ if (!have_ifname)
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+ {
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+ // We have found a valid interface name. Keep it.
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+ strncpy(ifname, ifa->ifa_name, sizeof(ifname));
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+ have_ifname = 1;
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+ } else {
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+ if (strncmp(ifname, ifa->ifa_name, sizeof(ifname)) != 0)
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+ {
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+ // This is not the interface we're looking for.
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+ continue;
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}
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}
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- }
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- }
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- close(s);
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-}
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-#endif
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-#if OSX || FREEBSD
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-void get_mac(u8_t mac[]) {
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- struct ifaddrs *addrs, *ptr;
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- const struct sockaddr_dl *dlAddr;
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- const unsigned char *base;
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-
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- mac[0] = mac[1] = mac[2] = mac[3] = mac[4] = mac[5] = 0;
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-
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- if (getifaddrs(&addrs) == 0) {
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- ptr = addrs;
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- while (ptr) {
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- if (ptr->ifa_addr->sa_family == AF_LINK && ((const struct sockaddr_dl *) ptr->ifa_addr)->sdl_type == IFT_ETHER) {
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- dlAddr = (const struct sockaddr_dl *)ptr->ifa_addr;
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- base = (const unsigned char*) &dlAddr->sdl_data[dlAddr->sdl_nlen];
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- memcpy(mac, base, min(dlAddr->sdl_alen, 6));
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+ // Check address family.
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+ if ((ifa->ifa_addr->sa_family == AF_INET) &&
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+ (((struct sockaddr_in *)ifa->ifa_broadaddr)->sin_addr.s_addr != 0))
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+ {
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+ // Get broadcast address and MAC address
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+ bcast_addr = ((struct sockaddr_in *)ifa->ifa_broadaddr)->sin_addr.s_addr;
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break;
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}
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- ptr = ptr->ifa_next;
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+ else
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+ {
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+ // Address is not IPv4
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+ if (iface == NULL)
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+ have_ifname = 0;
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+ }
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+
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}
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+
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+ // Find MAC address matching interface
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+ if (!have_mac && (bcast_addr != 0)) {
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+ for (ifa = addrs; ifa; ifa = ifa->ifa_next) {
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+ if ((ifa->ifa_addr->sa_family == PF_PACKET) &&
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+ (strncmp(ifname, ifa->ifa_name, sizeof(ifname)) == 0)) {
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+ sdl = (struct sockaddr *)(ifa->ifa_addr);
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+ ptr = (unsigned char *)sdl->sa_data;
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+ memcpy(mac, ptr + 10, 6);
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+ have_mac = 1;
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+ }
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+ }
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+ }
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+
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freeifaddrs(addrs);
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}
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+
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+ LOG_INFO("Interface: %s, broadcast: %08X, macaddr = %02x:%02x:%02x:%02x:%02x:%02x",
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+ ifname, bcast_addr, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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+
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+ return bcast_addr;
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}
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#endif
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+
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#if WIN
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#pragma comment(lib, "IPHLPAPI.lib")
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void get_mac(u8_t mac[]) {
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