X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fsystem-update-generator%2Fsystem-update-generator.c;h=abda5a0190e836892a2f995c5f2776019d67f4ec;hb=07719a21b6425d378b36bb8d7f47ad5ec5296d28;hp=0cfccfb494bc3a96a4d4544cc2ade813ab408b66;hpb=d360705f0f1262d49cccb6507abeafb7cfb5bbe0;p=elogind.git

diff --git a/src/system-update-generator/system-update-generator.c b/src/system-update-generator/system-update-generator.c
index 0cfccfb49..abda5a019 100644
--- a/src/system-update-generator/system-update-generator.c
+++ b/src/system-update-generator/system-update-generator.c
@@ -27,6 +27,11 @@
 #include "unit-name.h"
 #include "path-util.h"
 
+/*
+ * Implements the logic described in
+ * http://freedesktop.org/wiki/Software/systemd/SystemUpdates
+ */
+
 static const char *arg_dest = "/tmp";
 
 static int generate_symlink(void) {
@@ -61,15 +66,15 @@ static int generate_symlink(void) {
 int main(int argc, char *argv[]) {
         int r;
 
-        if (argc > 2) {
-                log_error("This program takes one or no arguments.");
+        if (argc > 1 && argc != 4) {
+                log_error("This program takes three or no arguments.");
                 return EXIT_FAILURE;
         }
 
         if (argc > 1)
-                arg_dest = argv[1];
+                arg_dest = argv[2];
 
-        log_set_target(LOG_TARGET_AUTO);
+        log_set_target(LOG_TARGET_SAFE);
         log_parse_environment();
         log_open();