Support --version in utility programs.

[adns.git] / client / adh-opts.c

diff --git a/client/adh-opts.c b/client/adh-opts.c
index fa5cceb7b072aa6894db2f2f5a50cfcda765878f..9805e5e8492440ef01ee7e21c9dd0494ed7d329d 100644 (file)
--- a/client/adh-opts.c
+++ b/client/adh-opts.c
@@ -64,6 +64,8 @@ static const struct optioninfo global_options[]= {
   { ot_desconly, "other global options:" },
   { ot_funcarg,          "Configuration to use instead of /etc/resolv.conf",
     0, "config",           0,0, of_config, "<config-text>" },
+  { ot_func,             "Print version number",
+    0, "version",          0,0, of_version },
   { ot_func,             "Print usage information",
     0, "help",             0,0, of_help },
 
@@ -269,6 +271,10 @@ static void printusage(void) {
   if (ferror(stdout)) sysfail("write usage message",errno);
 }
 
+void of_version(const struct optioninfo *oi, const char *arg, const char *arg2) {
+  VERSION_PRINT_QUIT("adnshost");
+}
+
 void of_help(const struct optioninfo *oi, const char *arg, const char *arg2) {
   printusage();
   if (fclose(stdout)) sysfail("finish writing output",errno);