libbb: add a function to make a copy of a region of memory

[oweals/busybox.git] / util-linux / scriptreplay.c

diff --git a/util-linux/scriptreplay.c b/util-linux/scriptreplay.c
index 038dbdfe1400b0ac423cd30136577dba94725dc7..382f56d9a34b27b9de64648f6b4da3e815d940b4 100644 (file)
--- a/util-linux/scriptreplay.c
+++ b/util-linux/scriptreplay.c
@@ -4,9 +4,15 @@
  *
  * pascal.bellard@ads-lu.com
  *
- * Licensed under GPLv2 or later, see file License in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  *
  */
+
+//usage:#define scriptreplay_trivial_usage
+//usage:       "timingfile [typescript [divisor]]"
+//usage:#define scriptreplay_full_usage "\n\n"
+//usage:       "Play back typescripts, using timing information"
+
 #include "libbb.h"
 
 int scriptreplay_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
@@ -18,6 +24,9 @@ int scriptreplay_main(int argc UNUSED_PARAM, char **argv)
        unsigned long count;
        FILE *tfp;
 
+       if (!argv[1])
+               bb_show_usage();
+
        if (argv[2]) {
                script = argv[2];
                if (argv[3])
@@ -30,9 +39,9 @@ int scriptreplay_main(int argc UNUSED_PARAM, char **argv)
                usleep(delay * factor);
                bb_copyfd_exact_size(fd, STDOUT_FILENO, count);
        }
-#if ENABLE_FEATURE_CLEAN_UP
-       close(fd);
-       fclose(tfp);
-#endif
+       if (ENABLE_FEATURE_CLEAN_UP) {
+               close(fd);
+               fclose(tfp);
+       }
        return EXIT_SUCCESS;
 }