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Add default server #2

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19 changes: 16 additions & 3 deletions ntpc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -155,13 +155,14 @@ int main(int argc, char **argv)
struct in_addr ia;
const char *s;
int i;
const char *cDefaultNtpServer = "1.jp.pool.ntp.org";

for (i = 1; i < argc; ++i) {
if ((he = gethostbyname(argv[i])) != NULL) {
memcpy(&ia, he->h_addr_list[0], sizeof(ia));
s = inet_ntoa(ia);
if (strcmp(s, argv[i]) == 0) printf("Trying %s: ", s);
else printf("Trying %s [%s]:", argv[i], s);
if (strcmp(s, argv[i]) == 0) printf("Trying %s: \n", s);
else printf("Trying %s [%s]:\n", argv[i], s);
if (ntpc(ia) == 0) return 0;
}
else {
Expand All @@ -171,7 +172,19 @@ int main(int argc, char **argv)

if (argc < 2) {
printf("Usage: ntpc <server>\n");
printf("Example: ntpc 0.asia.pool.ntp.org 1.asia.pool.ntp.org 2.asia.pool.ntp.org\n");
printf("Example: ntpc 0.asia.pool.ntp.org 1.asia.pool.ntp.org 2.asia.pool.ntp.org\n\n");
printf("Use default ntp server: %s\n\n", cDefaultNtpServer);

if ((he = gethostbyname(cDefaultNtpServer)) != NULL) {
memcpy(&ia, he->h_addr_list[0], sizeof(ia));
s = inet_ntoa(ia);
if (strcmp(s, cDefaultNtpServer) == 0) printf("Trying %s: \n", s);
else printf("Trying %s [%s]:\n", cDefaultNtpServer, s);
if (ntpc(ia) == 0) return 0;
}
else {
printf("Unable to resolve: %s\n", cDefaultNtpServer);
}
}

return 1;
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