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gluon-neighbour-info: improve verbosity on wrong cli parameters

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This commit is contained in:
lemoer 2016-07-25 02:38:10 +02:00
parent 1c42aa0e42
commit c541ad4c3e
1 changed files with 15 additions and 3 deletions
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18
package/gluon-neighbour-info/src/gluon-neighbour-info.c
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@ -38,7 +38,7 @@
void usage() {
puts("Usage: gluon-neighbour-info [-h] [-s] [-l] [-c <count>] [-t <sec>] -d <dest> -p <port> -i <if0> -r <request>");
puts(" -p <int> UDP port");
puts(" -d <ip6> multicast group, e.g. ff02:0:0:0:0:0:2:1001");
puts(" -d <ip6> destination address (unicast ip6 or multicast group, e.g. ff02:0:0:0:0:0:2:1001)");
puts(" -i <string> interface, e.g. eth0 ");
puts(" -r <string> request, e.g. nodeinfo");
puts(" -t <sec> timeout in seconds (default: 3)");
@ -145,7 +145,6 @@ int main(int argc, char **argv) {
}
client_addr.sin6_family = AF_INET6;
client_addr.sin6_addr = in6addr_any;
opterr = 0;
@ -154,6 +153,7 @@ int main(int argc, char **argv) {
char *sse = NULL;
bool loop = false;
int ret = false;
bool destination_set = false;
int c;
while ((c = getopt(argc, argv, "p:d:r:i:t:s:c:lh")) != -1)
@ -165,6 +165,8 @@ int main(int argc, char **argv) {
if (!inet_pton(AF_INET6, optarg, &client_addr.sin6_addr)) {
perror("Invalid IPv6 address. This message will probably confuse you");
exit(EXIT_FAILURE);
} else {
destination_set = true;
}
break;
case 'i':
@ -206,10 +208,20 @@ int main(int argc, char **argv) {
}
if (request_string == NULL) {
fprintf(stderr, "No request string supplied");
fprintf(stderr, "No request string supplied\n");
exit(EXIT_FAILURE);
}
if (client_addr.sin6_port == htons(0)) {
fprintf(stderr, "No port supplied\n");
exit(EXIT_FAILURE);
}
if (!destination_set) {
fprintf(stderr, "No destination address supplied\n");
exit(EXIT_FAILURE);
}
if (sse) {
fputs("Content-Type: text/event-stream\n\n", stdout);
fflush(stdout);