Added support for ignoring '-g' per GNU ls, thanks to David Vrabel

[oweals/busybox.git] / update.c

diff --git a/update.c b/update.c
index 1e3e032fde066414533a97779a0b191c53565dc4..b86d84e06680087f0db50ae6eb5689812a4fd4fc 100644 (file)
--- a/update.c
+++ b/update.c
@@ -28,19 +28,24 @@
 #include <sys/param.h>
 #include <sys/syslog.h>
 
+
 #if defined(__GLIBC__)
 #include <sys/kdaemon.h>
 #else
-_syscall2(int, bdflush, int, func, int, data);
+static _syscall2(int, bdflush, int, func, int, data);
 #endif                                                 /* __GLIBC__ */
 
+
 static char update_usage[] =
-       "update [options]\n\n"
-       "Periodically flushes filesystem buffers.\n\n"
+       "update [options]\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+       "\nPeriodically flushes filesystem buffers.\n\n"
        "Options:\n"
        "\t-S\tforce use of sync(2) instead of flushing\n"
        "\t-s SECS\tcall sync this often (default 30)\n"
-       "\t-f SECS\tflush some buffers this often (default 5)\n";
+       "\t-f SECS\tflush some buffers this often (default 5)\n"
+#endif
+       ;
 
 static unsigned int sync_duration = 30;
 static unsigned int flush_duration = 5;
@@ -52,7 +57,7 @@ extern int update_main(int argc, char **argv)
 
        argc--;
        argv++;
-       while (**argv == '-') {
+       while (argc>0 && **argv == '-') {
                while (*++(*argv)) {
                        switch (**argv) {
                        case 'S':
@@ -106,7 +111,7 @@ extern int update_main(int argc, char **argv)
                        }
                }
        }
-       exit( TRUE);
+       return( TRUE);
 }
 
 /*