X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=converter%2Fbabeltrace.c;h=64392d0c5aee66900cdca53db0dc190ddfcea6fa;hp=cc7eabc40264b61324e47099f7d5d7e9f6f2d178;hb=c818559a7af1e5448cc8d3c5823a66e53061191f;hpb=b61922b5e7b4d7ec5ed960c3d842886b5a97f549

diff --git a/converter/babeltrace.c b/converter/babeltrace.c
index cc7eabc4..64392d0c 100644
--- a/converter/babeltrace.c
+++ b/converter/babeltrace.c
@@ -72,18 +72,18 @@ static void usage(FILE *fp)
 	fprintf(fp, "BabelTrace Trace Converter %u.%u\n\n",
 		BABELTRACE_VERSION_MAJOR,
 		BABELTRACE_VERSION_MINOR);
-	fprintf(fp, "usage : babeltrace [OPTIONS] INPUT OUTPUT\n");
+	fprintf(fp, "usage : babeltrace [OPTIONS] INPUT <OUTPUT>\n");
 	fprintf(fp, "\n");
-	fprintf(fp, "  INPUT               Input trace path\n");
-	fprintf(fp, "  OUTPUT              Output trace path\n");
+	fprintf(fp, "  INPUT                          Input trace path\n");
+	fprintf(fp, "  OUTPUT                         Output trace path (default: stdout)\n");
 	fprintf(fp, "\n");
-	fprintf(fp, "  -i, --input-format  Input trace path\n");
-	fprintf(fp, "  -o, --output-format Input trace path\n");
+	fprintf(fp, "  -i, --input-format FORMAT      Input trace format (default: ctf)\n");
+	fprintf(fp, "  -o, --output-format FORMAT     Output trace format (default: text)\n");
 	fprintf(fp, "\n");
-	fprintf(fp, "  -h, --help          This help message\n");
-	fprintf(fp, "  -l, --list          List available formats\n");
-	fprintf(fp, "  -v, --verbose       Verbose mode\n");
-	fprintf(fp, "  -d, --debug         Debug mode\n");
+	fprintf(fp, "  -h, --help                     This help message\n");
+	fprintf(fp, "  -l, --list                     List available formats\n");
+	fprintf(fp, "  -v, --verbose                  Verbose mode\n");
+	fprintf(fp, "  -d, --debug                    Debug mode\n");
 	list_formats(fp);
 	fprintf(fp, "\n");
 }
@@ -196,7 +196,7 @@ int main(int argc, char **argv)
 		goto error_td_read;
 	}
 
-	td_write = fmt_write->open_trace(opt_output_path, O_WRONLY);
+	td_write = fmt_write->open_trace(opt_output_path, O_RDWR);
 	if (!td_write) {
 		fprintf(stdout, "Error opening trace \"%s\" for writing.\n\n",
 			opt_output_path ? : "<none>");