int lvm2_run(void *handle, const char *cmdline)
{
int argc, ret, oneoff = 0;
char *args[MAX_ARGS], **argv, *cmdcopy = NULL;
struct cmd_context *cmd;
argv = args;
if (!handle) {
oneoff = 1;
if (!(handle = lvm2_init())) {
log_error("Handle initialisation failed.");
return ECMD_FAILED;
}
}
cmd = (struct cmd_context *) handle;
cmd->argv = argv;
if (!(cmdcopy = dm_strdup(cmdline))) {
log_error("Cmdline copy failed.");
ret = ECMD_FAILED;
goto out;
}
if (lvm_split(cmdcopy, &argc, argv, MAX_ARGS) == MAX_ARGS) {
log_error("Too many arguments. Limit is %d.", MAX_ARGS);
ret = EINVALID_CMD_LINE;
goto out;
}
if (!argc) {
log_error("No command supplied");
ret = EINVALID_CMD_LINE;
goto out;
}
/* FIXME Temporary - move to libdevmapper */
ret = ECMD_PROCESSED;
if (!strcmp(cmdline, "_memlock_inc"))
memlock_inc_daemon(cmd);
else if (!strcmp(cmdline, "_memlock_dec"))
memlock_dec_daemon(cmd);
else
ret = lvm_run_command(cmd, argc, argv);
out:
dm_free(cmdcopy);
if (oneoff)
lvm2_exit(handle);
return ret;
}
int lvm_shell(struct cmd_context *cmd, struct cmdline_context *cmdline)
{
int argc, ret;
char *input = NULL, *args[MAX_ARGS], **argv;
rl_readline_name = "lvm";
rl_attempted_completion_function = (CPPFunction *) _completion;
_read_history(cmd);
_cmdline = cmdline;
_cmdline->interactive = 1;
while (1) {
free(input);
input = readline("lvm> ");
/* EOF */
if (!input) {
printf("\n");
break;
}
/* empty line */
if (!*input)
continue;
add_history(input);
argv = args;
if (lvm_split(input, &argc, argv, MAX_ARGS) == MAX_ARGS) {
log_error("Too many arguments, sorry.");
continue;
}
if (!argc)
continue;
if (!strcmp(argv[0], "lvm")) {
argv++;
argc--;
}
if (!argc)
continue;
if (!strcmp(argv[0], "quit") || !strcmp(argv[0], "exit")) {
remove_history(history_length - 1);
log_error("Exiting.");
break;
}
ret = lvm_run_command(cmd, argc, argv);
if (ret == ENO_SUCH_CMD)
log_error("No such command '%s'. Try 'help'.",
argv[0]);
if ((ret != ECMD_PROCESSED) && !error_message_produced()) {
log_debug(INTERNAL_ERROR "Failed command did not use log_error");
log_error("Command failed with status code %d.", ret);
}
_write_history();
}
free(input);
return 0;
}
