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Code Issues Releases Wiki Activity

Use full qualified hostname

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This commit is contained in:
Nicolas Viennot 2016-03-10 15:28:55 -05:00
parent 1fa1a9aca4
commit fa4ae885ea
1 changed files with 29 additions and 6 deletions
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35
tmate-slave.c
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@ -104,6 +104,33 @@ static void usage(void)
fprintf(stderr, "usage: tmate-slave [-h hostname] [-k keys_dir] [-p port] [-x proxy_hostname] [-q proxy_port] [-s] [-v]\n");
}
static char* get_full_hostname(void)
{
struct addrinfo hints, *info;
char hostname[1024];
int gai_result;
char *ret;
if (gethostname(hostname, sizeof(hostname)) < 0)
tmate_fatal("cannot get hostname");
hostname[1023] = '\0';
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC; /*either IPV4 or IPV6*/
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_CANONNAME;
if ((gai_result = getaddrinfo(hostname, NULL, &hints, &info)) != 0) {
tmate_warn("cannot lookup hostname: %s", gai_strerror(gai_result));
return xstrdup(hostname);
}
ret = xstrdup(info->ai_canonname);
freeaddrinfo(info);
return ret;
}
int main(int argc, char **argv, char **envp)
{
int opt;
@ -137,12 +164,8 @@ int main(int argc, char **argv, char **envp)
}
}
if (!tmate_settings->tmate_host) {
char hostname[255];
if (gethostname(hostname, sizeof(hostname)) < 0)
tmate_fatal("cannot get hostname");
tmate_settings->tmate_host = xstrdup(hostname);
}
if (!tmate_settings->tmate_host)
tmate_settings->tmate_host = get_full_hostname();
cmdline = *argv;
cmdline_end = *envp;