X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng%2Fcommands%2Fversion.c;h=7634f5871a0eaec92e7a4820e36e21c487905aa1;hp=0b90fa172951efe87d11654b6394a82ce7b86ffc;hb=890d8fe47755c3bad936389cf48ffa141cff41c9;hpb=9afbd878f072d5e0577811acf1d3340f65cf2e26

diff --git a/src/bin/lttng/commands/version.c b/src/bin/lttng/commands/version.c
index 0b90fa172..7634f5871 100644
--- a/src/bin/lttng/commands/version.c
+++ b/src/bin/lttng/commands/version.c
@@ -15,7 +15,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#define _GNU_SOURCE
+#define _LGPL_SOURCE
 #include <popt.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -23,7 +23,8 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
-#include <config.h>
+
+#include <common/mi-lttng.h>
 
 #include "../command.h"
 
@@ -32,6 +33,8 @@ enum {
 	OPT_LIST_OPTIONS,
 };
 
+static const char *lttng_license = "lttng is free software and under the GPL license and part LGPL";
+
 static struct poptOption long_options[] = {
 	/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
 	{"help",      'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
@@ -52,6 +55,85 @@ static void usage(FILE *ofp)
 	fprintf(ofp, "\n");
 }
 
+/*
+ *  create_version
+ */
+static void create_version(struct mi_lttng_version *version)
+{
+	strncpy(version->version, VERSION, NAME_MAX);
+	version->version_major = VERSION_MAJOR;
+	version->version_minor = VERSION_MINOR;
+	version->version_patchlevel = VERSION_PATCHLEVEL;
+	strncpy(version->version_commit, GIT_VERSION, NAME_MAX);
+	strncpy(version->version_name, VERSION_NAME, NAME_MAX);
+	strncpy(version->package_url, PACKAGE_URL, NAME_MAX);
+}
+
+/*
+ * Print the machine interface output of this command.
+ */
+static int print_mi()
+{
+	int ret = CMD_SUCCESS;
+	struct mi_writer *writer = NULL;
+	struct mi_lttng_version version;
+
+	create_version(&version);
+
+	writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
+	if (!writer) {
+		ret = -LTTNG_ERR_NOMEM;
+		goto end;
+	}
+
+	/* Open the command element */
+	ret = mi_lttng_writer_command_open(writer,
+			mi_lttng_element_command_version);
+	if (ret) {
+		ret = CMD_ERROR;
+		goto error;
+	}
+
+	/* Beginning of output */
+	ret = mi_lttng_writer_open_element(writer,
+			mi_lttng_element_command_output);
+	if (ret) {
+		ret = CMD_ERROR;
+		goto error;
+	}
+
+	/* Print the machine interface of version */
+	ret = mi_lttng_version(writer, &version,
+			VERSION_DESCRIPTION, lttng_license);
+	if (ret) {
+		ret = CMD_ERROR;
+		goto error;
+	}
+
+	/* Close the output element */
+	ret = mi_lttng_writer_close_element(writer);
+	if (ret) {
+		ret = CMD_ERROR;
+		goto error;
+	}
+
+	/* Close the command  */
+	ret = mi_lttng_writer_command_close(writer);
+	if (ret) {
+		ret = CMD_ERROR;
+	}
+
+error:
+	/* Cleanup */
+	if (writer && mi_lttng_writer_destroy(writer)) {
+		/* Preserve original error code */
+		ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL;
+	}
+
+end:
+	return ret;
+}
+
 /*
  *  cmd_version
  */
@@ -78,10 +160,15 @@ int cmd_version(int argc, const char **argv)
 		}
 	}
 
-	MSG("LTTng version " VERSION " - " VERSION_NAME);
-	MSG("\n" VERSION_DESCRIPTION "\n");
-	MSG("Web site: " PACKAGE_URL "\n");
-	MSG("LTTng is free software and under the GPL license and part LGPL");
+	if (lttng_opt_mi) {
+		ret = print_mi();
+	} else {
+		MSG("lttng version " VERSION " - " VERSION_NAME "%s",
+			GIT_VERSION[0] == '\0' ? "" : " - " GIT_VERSION);
+		MSG("\n" VERSION_DESCRIPTION "\n");
+		MSG("Web site: http://lttng.org");
+		MSG("\n%s", lttng_license);
+	}
 
 end:
 	poptFreeContext(pc);