+ int argc;
+
+ for (argc = 0; argv[argc] != NULL; ++argc)
+ ;
+
+ if (strcasecmp (cmd, "help") == 0) {
+ if (argc == 0)
+ list_commands ();
+ else
+ display_command (argv[0]);
+ return 0;
+ }
+ else if (strcasecmp (cmd, "quit") == 0 ||
+ strcasecmp (cmd, "exit") == 0 ||
+ strcasecmp (cmd, "q") == 0) {
+ quit = 1;
+ return 0;
+ }
+ else if (strcasecmp (cmd, "alloc") == 0 ||
+ strcasecmp (cmd, "allocate") == 0)
+ return do_alloc (cmd, argc, argv);
+ else if (strcasecmp (cmd, "echo") == 0)
+ return do_echo (cmd, argc, argv);
+ else if (strcasecmp (cmd, "edit") == 0 ||
+ strcasecmp (cmd, "vi") == 0 ||
+ strcasecmp (cmd, "emacs") == 0)
+ return do_edit (cmd, argc, argv);
+ else
+ return run_action (cmd, argc, argv);
+}
+
+void
+list_builtin_commands (void)
+{
+ /* help and quit should appear at the top */
+ printf ("%-20s %s\n",
+ "help", _("display a list of commands or help on a command"));
+ printf ("%-20s %s\n",
+ "quit", _("quit guestfish"));
+
+ printf ("%-20s %s\n",
+ "alloc", _("allocate an image"));
+ printf ("%-20s %s\n",
+ "echo", _("display a line of text"));
+ printf ("%-20s %s\n",
+ "edit", _("edit a file in the image"));
+
+ /* actions are printed after this (see list_commands) */
+}
+
+void
+display_builtin_command (const char *cmd)
+{
+ /* help for actions is auto-generated, see display_command */
+
+ if (strcasecmp (cmd, "alloc") == 0 ||
+ strcasecmp (cmd, "allocate") == 0)
+ printf (_("alloc - allocate an image\n"
+ " alloc <filename> <size>\n"
+ "\n"
+ " This creates an empty (zeroed) file of the given size,\n"
+ " and then adds so it can be further examined.\n"
+ "\n"
+ " For more advanced image creation, see qemu-img utility.\n"
+ "\n"
+ " Size can be specified (where <nn> means a number):\n"
+ " <nn> number of kilobytes\n"
+ " eg: 1440 standard 3.5\" floppy\n"
+ " <nn>K or <nn>KB number of kilobytes\n"
+ " <nn>M or <nn>MB number of megabytes\n"
+ " <nn>G or <nn>GB number of gigabytes\n"
+ " <nn>sects number of 512 byte sectors\n"));
+ else if (strcasecmp (cmd, "echo") == 0)
+ printf (_("echo - display a line of text\n"
+ " echo [<params> ...]\n"
+ "\n"
+ " This echos the parameters to the terminal.\n"));
+ else if (strcasecmp (cmd, "edit") == 0 ||
+ strcasecmp (cmd, "vi") == 0 ||
+ strcasecmp (cmd, "emacs") == 0)
+ printf (_("edit - edit a file in the image\n"
+ " edit <filename>\n"
+ "\n"
+ " This is used to edit a file.\n"
+ "\n"
+ " It is the equivalent of (and is implemented by)\n"
+ " running \"cat\", editing locally, and then \"write-file\".\n"
+ "\n"
+ " Normally it uses $EDITOR, but if you use the aliases\n"
+ " \"vi\" or \"emacs\" you will get those editors.\n"
+ "\n"
+ " NOTE: This will not work reliably for large files\n"
+ " (> 2 MB) or binary files containing \\0 bytes.\n"));
+ else if (strcasecmp (cmd, "help") == 0)
+ printf (_("help - display a list of commands or help on a command\n"
+ " help cmd\n"
+ " help\n"));
+ else if (strcasecmp (cmd, "quit") == 0 ||
+ strcasecmp (cmd, "exit") == 0 ||
+ strcasecmp (cmd, "q") == 0)
+ printf (_("quit - quit guestfish\n"
+ " quit\n"));
+ else
+ fprintf (stderr, _("%s: command not known, use -h to list all commands\n"),
+ cmd);
+}
+
+void
+free_strings (char **argv)
+{
+ int argc;
+
+ for (argc = 0; argv[argc] != NULL; ++argc)
+ free (argv[argc]);
+ free (argv);
+}
+
+void
+print_strings (char * const * const argv)
+{
+ int argc;
+
+ for (argc = 0; argv[argc] != NULL; ++argc)
+ printf ("%s\n", argv[argc]);
+}
+
+void
+print_table (char * const * const argv)
+{