30 lines
792 B
Diff
30 lines
792 B
Diff
--- a/main.c
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+++ b/main.c
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@@ -187,6 +187,17 @@ static void sighandler(int signum) {
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signal(signum, SIG_DFL);
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}
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+// Waits for nonzero MAC
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+static void get_nonzero_mac(u8_t mac[], u32_t timeout_ms) {
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+ u32_t wait_timeout = gettime_ms() + timeout_ms;
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+ do{
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+ get_mac(mac);
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+ if ((mac[0]+mac[1]+mac[2]+mac[3]+mac[4]+mac[5]) != 0) {
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+ break;
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+ }
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+ }while(wait_timeout > gettime_ms());
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+}
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+
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int main(int argc, char **argv) {
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char *server = NULL;
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char *output_device = "default";
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@@ -240,7 +251,8 @@ 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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+ // Waits for nonzero MAC
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+ get_nonzero_mac(mac,10000);
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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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