Help and usage fix

Option -h was added. Also details about options were added into usage.

diff --git a/src/cron.c b/src/cron.c
index c99c155566c9c88f6c289f77ad3bbe75dd9adc4f..5c28e3a6d015880f2120c60e45417bb4eb88c8ec 100644 (file)
--- a/src/cron.c
+++ b/src/cron.c
@@ -123,11 +123,17 @@ static void handle_signals(cron_db * database) {
 static void usage(void) {
        const char **dflags;
 
-       fprintf(stderr, "usage:  %s [-n] [-p] [-s] [-i] [-m <mail command>] [-x [",
+       fprintf(stderr, "usage:  %s [-h] print this message \n \
+               [-i] deamon runs without inotify support \n \
+               [-m <mail command>] off or specify prefered client for sending mails \n \
+               [-n] run in foreground \n \
+               [-p] permit any crontab \n \
+               [-s] log into syslog instead of sending mails \n \
+               [-x [",
                ProgramName);
        for (dflags = DebugFlagNames; *dflags; dflags++)
                fprintf(stderr, "%s%s", *dflags, dflags[1] ? "," : "]");
-       fprintf(stderr, "]\n");
+       fprintf(stderr, "] print debug information\n");
        exit(ERROR_EXIT);
 }
 
@@ -587,29 +593,31 @@ static void sigchld_reaper(void) {
 static void parse_args(int argc, char *argv[]) {
        int argch;
 
-       while (-1 != (argch = getopt(argc, argv, "npsix:m:"))) {
+       while (-1 != (argch = getopt(argc, argv, "hnpsix:m:"))) {
                switch (argch) {
-               default:
-                       usage();
-               case 'x':
-                       if (!set_debug_flags(optarg))
+                       case 'x':
+                               if (!set_debug_flags(optarg))
+                                       usage();
+                               break;
+                       case 'n':
+                               NoFork = 1;
+                               break;
+                       case 'p':
+                               PermitAnyCrontab = 1;
+                               break;
+                       case 's':
+                               SyslogOutput = 1;
+                               break;
+                       case 'i':
+                               DisableInotify = 1;
+                               break;
+                       case 'm':
+                               strncpy(MailCmd, optarg, MAX_COMMAND);
+                               break;
+                       case 'h':
+                       default:
                                usage();
-                       break;
-               case 'n':
-                       NoFork = 1;
-                       break;
-               case 'p':
-                       PermitAnyCrontab = 1;
-                       break;
-               case 's':
-                       SyslogOutput = 1;
-                       break;
-               case 'i':
-                       DisableInotify = 1;
-                       break;
-               case 'm':
-                       strncpy(MailCmd, optarg, MAX_COMMAND);
-                       break;
+                               break;
                }
        }
 }