irmd: Add option to print version

This adds the --version option to the IRMd. With this option it will
print the version of Ouroboros to stdout and exit. Checking the
version does not require root privileges.

Also fixes calling log functions before log_init() and after
log_fini().

2 files changed, 37 insertions, 27 deletions

diff --git a/src/irmd/config.h.in b/src/irmd/config.h.in
index 37e450c0..5a5462c5 100644
--- a/src/irmd/config.h.in
+++ b/src/irmd/config.h.in
@@ -20,31 +20,34 @@
  * Foundation, Inc., http://www.fsf.org/about/contact/.
  */
 
-#define IPCP_SHIM_UDP_EXEC     "@IPCP_SHIM_UDP_TARGET@"
-#define IPCP_SHIM_ETH_LLC_EXEC "@IPCP_SHIM_ETH_LLC_TARGET@"
-#define IPCP_NORMAL_EXEC       "@IPCP_NORMAL_TARGET@"
-#define IPCP_LOCAL_EXEC        "@IPCP_LOCAL_TARGET@"
+#define IPCP_SHIM_UDP_EXEC      "@IPCP_SHIM_UDP_TARGET@"
+#define IPCP_SHIM_ETH_LLC_EXEC  "@IPCP_SHIM_ETH_LLC_TARGET@"
+#define IPCP_NORMAL_EXEC        "@IPCP_NORMAL_TARGET@"
+#define IPCP_LOCAL_EXEC         "@IPCP_LOCAL_TARGET@"
 
-#define INSTALL_PREFIX         "@CMAKE_INSTALL_PREFIX@"
+#define INSTALL_PREFIX          "@CMAKE_INSTALL_PREFIX@"
 
-#define PTHREAD_COND_CLOCK     @PTHREAD_COND_CLOCK@
+#define OUROBOROS_VERSION_MAJOR @PACKAGE_VERSION_MAJOR@
+#define OUROBOROS_VERSION_MINOR @PACKAGE_VERSION_MINOR@
 
-#define SOCKET_TIMEOUT         @SOCKET_TIMEOUT@
+#define PTHREAD_COND_CLOCK      @PTHREAD_COND_CLOCK@
 
-#define IRMD_ACCEPT_TIMEOUT    @IRMD_ACCEPT_TIMEOUT@
-#define IRMD_REQ_ARR_TIMEOUT   @IRMD_REQ_ARR_TIMEOUT@
-#define IRMD_FLOW_TIMEOUT      @IRMD_FLOW_TIMEOUT@
+#define SOCKET_TIMEOUT          @SOCKET_TIMEOUT@
 
-#define BOOTSTRAP_TIMEOUT      @BOOTSTRAP_TIMEOUT@
-#define ENROLL_TIMEOUT         @ENROLL_TIMEOUT@
-#define REG_TIMEOUT            @REG_TIMEOUT@
-#define QUERY_TIMEOUT          @QUERY_TIMEOUT@
-#define CONNECT_TIMEOUT        @CONNECT_TIMEOUT@
+#define IRMD_ACCEPT_TIMEOUT     @IRMD_ACCEPT_TIMEOUT@
+#define IRMD_REQ_ARR_TIMEOUT    @IRMD_REQ_ARR_TIMEOUT@
+#define IRMD_FLOW_TIMEOUT       @IRMD_FLOW_TIMEOUT@
 
-#define SYS_MAX_FLOWS          @SYS_MAX_FLOWS@
+#define BOOTSTRAP_TIMEOUT       @BOOTSTRAP_TIMEOUT@
+#define ENROLL_TIMEOUT          @ENROLL_TIMEOUT@
+#define REG_TIMEOUT             @REG_TIMEOUT@
+#define QUERY_TIMEOUT           @QUERY_TIMEOUT@
+#define CONNECT_TIMEOUT         @CONNECT_TIMEOUT@
 
-#define IRMD_MIN_THREADS       @IRMD_MIN_THREADS@
-#define IRMD_ADD_THREADS       @IRMD_ADD_THREADS@
+#define SYS_MAX_FLOWS           @SYS_MAX_FLOWS@
+
+#define IRMD_MIN_THREADS        @IRMD_MIN_THREADS@
+#define IRMD_ADD_THREADS        @IRMD_ADD_THREADS@
 
 #cmakedefine HAVE_FUSE
 #ifdef HAVE_FUSE
diff --git a/src/irmd/main.c b/src/irmd/main.c
index 84c55e93..99a34af2 100644
--- a/src/irmd/main.c
+++ b/src/irmd/main.c
@@ -2272,8 +2272,10 @@ static int irm_init(void)
 
 static void usage(void)
 {
-        log_err("Usage: irmd \n\n"
-                 "         [--stdout (Print to stdout instead of logs)]\n");
+        printf("Usage: irmd \n"
+               "         [--stdout  (Log to stdout instead of system log)]\n"
+               "         [--version (Print version number and exit)]\n"
+               "\n");
 }
 
 int main(int     argc,
@@ -2289,11 +2291,6 @@ int main(int     argc,
         sigaddset(&sigset, SIGHUP);
         sigaddset(&sigset, SIGPIPE);
 
-        if (geteuid() != 0) {
-                log_err("IPC Resource Manager must be run as root.");
-                exit(EXIT_FAILURE);
-        }
-
         argc--;
         argv++;
         while (argc > 0) {
@@ -2301,12 +2298,22 @@ int main(int     argc,
                         use_stdout = true;
                         argc--;
                         argv++;
+                } else if (strcmp(*argv, "--version") == 0) {
+                        printf("Ouroboros version %d.%d\n",
+                               OUROBOROS_VERSION_MAJOR,
+                               OUROBOROS_VERSION_MINOR);
+                        exit(EXIT_SUCCESS);
                 } else {
                         usage();
                         exit(EXIT_FAILURE);
                 }
         }
 
+        if (geteuid() != 0) {
+                printf("IPC Resource Manager must be run as root.\n");
+                exit(EXIT_FAILURE);
+        }
+
         /* Init sig_act. */
         memset(&sig_act, 0, sizeof sig_act);
 
@@ -2369,10 +2376,10 @@ int main(int     argc,
 
         pthread_sigmask(SIG_UNBLOCK, &sigset, NULL);
 
-        log_fini();
-
         log_info("Bye.");
 
+        log_fini();
+
         exit(EXIT_SUCCESS);
 
  fail_acceptor: