mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-21 13:34:40 +03:00
tools: Reinstate lvm script processing.
We check for a script if the command isn't recognised (ENO_SUCH_CMD). (Also added a few comments and fixed some whitespace.)
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fe3b9bb7d4
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2eaca7ab63
@ -1348,7 +1348,7 @@ static int copy_line(char *line, int max_line, int *position)
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return 1;
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}
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int define_commands(char *run_name)
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int define_commands(const char *run_name)
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{
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struct command *cmd = NULL;
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char line[MAX_LINE];
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@ -255,7 +255,7 @@ struct lv_type {
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};
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int define_commands(char *run_name);
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int define_commands(const char *run_name);
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int command_id_to_enum(const char *str);
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void print_usage(struct command *cmd, int longhelp, int desc_first);
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void print_usage_common_cmd(struct command_name *cname, struct command *cmd);
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@ -32,7 +32,7 @@ void *cmdlib_lvm2_init(unsigned static_compile);
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void lvm_fin(struct cmd_context *cmd);
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struct cmd_context *init_lvm(unsigned set_connections, unsigned set_filters);
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int lvm_register_commands(char *name);
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int lvm_register_commands(const char *name);
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int lvm_split(char *str, int *argc, char **argv, int max);
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int lvm_run_command(struct cmd_context *cmd, int argc, char **argv);
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int lvm_return_code(int ret);
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@ -736,7 +736,7 @@ int int_arg_with_plus(struct cmd_context *cmd __attribute__((unused)), struct ar
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}
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static int _extents_arg(struct cmd_context *cmd __attribute__((unused)),
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struct arg_values *av)
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struct arg_values *av)
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{
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char *ptr;
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@ -1237,7 +1237,7 @@ static const struct command_function *_find_command_id_function(int command_enum
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return NULL;
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}
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int lvm_register_commands(char *name)
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int lvm_register_commands(const char *run_name)
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{
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int i;
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@ -1251,7 +1251,7 @@ int lvm_register_commands(char *name)
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* populate commands[] array with command definitions
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* by parsing command-lines.in/command-lines-input.h
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*/
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if (!define_commands(name)) {
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if (!define_commands(run_name)) {
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log_error(INTERNAL_ERROR "Failed to parse command definitions.");
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return 0;
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}
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@ -1510,12 +1510,12 @@ static struct command *_find_command(struct cmd_context *cmd, const char *path,
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if (arg_is_set(cmd, help_ARG) || arg_is_set(cmd, help2_ARG) || arg_is_set(cmd, longhelp_ARG) || arg_is_set(cmd, version_ARG))
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return &commands[i];
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match_required = 0; /* required parameters that match */
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match_ro = 0; /* required opt_args that match */
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match_rp = 0; /* required pos_args that match */
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match_type = 0; /* type arg matches */
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match_unused = 0; /* options set that are not accepted by command */
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mismatch_required = 0; /* required parameters that do not match */
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match_required = 0; /* required parameters that match */
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match_ro = 0; /* required opt_args that match */
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match_rp = 0; /* required pos_args that match */
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match_type = 0; /* type arg matches */
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match_unused = 0; /* options set that are not accepted by command */
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mismatch_required = 0; /* required parameters that do not match */
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temp_unused_count = 0;
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memset(&temp_unused_options, 0, sizeof(temp_unused_options));
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@ -1807,7 +1807,7 @@ static int _usage(const char *name, int longhelp, int skip_notes)
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* Looks at all variants of each command name and figures out
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* which options are common to all variants (for compact output)
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*/
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factor_common_options();
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factor_common_options();
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log_print("%s - %s\n", name, cname->desc);
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@ -1974,14 +1974,10 @@ static int _process_command_line(struct cmd_context *cmd, int *argc, char ***arg
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struct opt_name *a;
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struct arg_values *av;
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struct arg_value_group_list *current_group = NULL;
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struct command_name *cname;
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int arg_enum; /* e.g. foo_ARG */
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int goval; /* the number returned from getopt_long identifying what it found */
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int i;
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if (!(cname = find_command_name(cmd->name)))
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return_0;
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if (!(cmd->opt_arg_values = dm_pool_zalloc(cmd->mem, sizeof(*cmd->opt_arg_values) * ARG_COUNT))) {
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log_fatal("Unable to allocate memory for command line arguments.");
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return 0;
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@ -1992,8 +1988,9 @@ static int _process_command_line(struct cmd_context *cmd, int *argc, char ***arg
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* array (opts) to pass to the getopt_long() function. IOW we generate
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* the arguments to pass to getopt_long() from the opt_names data.
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*/
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for (i = 0; i < cname->num_args; i++)
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_add_getopt_arg(cname->valid_args[i], &ptr, &o);
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if (cmd->cname)
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for (i = 0; i < cmd->cname->num_args; i++)
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_add_getopt_arg(cmd->cname->valid_args[i], &ptr, &o);
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*ptr = '\0';
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memset(o, 0, sizeof(*o));
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@ -2673,8 +2670,11 @@ int lvm_run_command(struct cmd_context *cmd, int argc, char **argv)
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if (!(cmd->cmd_line = _copy_command_line(cmd, argc, argv)))
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return_ECMD_FAILED;
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/* Look up command - will be NULL if not recognised */
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cmd->cname = find_command_name(cmd->name);
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if (!_process_command_line(cmd, &argc, &argv)) {
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log_error("Command name not found.");
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log_error("Error during parsing of command line.");
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return EINVALID_CMD_LINE;
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}
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@ -2688,10 +2688,9 @@ int lvm_run_command(struct cmd_context *cmd, int argc, char **argv)
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log_debug("Parsing: %s", cmd->cmd_line);
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if (!(cmd->cname = find_command_name(cmd->name))) {
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log_error("Command name not found.\n");
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return EINVALID_CMD_LINE;
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}
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/* Having validated cmdline args, return if we didn't recognised the command */
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if (!cmd->cname)
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return ENO_SUCH_CMD;
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if (!(cmd->command = _find_command(cmd, cmd->name, &argc, argv)))
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return EINVALID_CMD_LINE;
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@ -3311,7 +3310,7 @@ int lvm2_main(int argc, char **argv)
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int ret, alias = 0;
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struct custom_fds custom_fds;
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struct cmd_context *cmd;
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char *name;
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const char *run_name;
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if (!argv)
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return -1;
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@ -3351,26 +3350,25 @@ int lvm2_main(int argc, char **argv)
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if (!(cmd = init_lvm(0, 0)))
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return -1;
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/* Store original argv location so we may customise it if we become a daemon */
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cmd->argv = argv;
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if (!alias && argc == 1)
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name = NULL;
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else if (alias)
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name = (char *)dm_basename(argv[0]);
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else
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name = argv[1];
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if (!lvm_register_commands(name)) {
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ret = ECMD_FAILED;
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goto out;
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}
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/*
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* If the invocation command name wasn't itself an alias, shift to the
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* first arg. After this point, run_name holds one of:
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* the LVM command name we want to run;
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* the LVM script name (handled through ENO_SUCH_CMD below);
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* NULL for a shell (if readline is enabled).
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*/
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if (!alias) {
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argc--;
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argv++;
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run_name = argv[0];
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} else
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run_name = dm_basename(argv[0]);
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if (_lvm1_fallback(cmd)) {
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/* Attempt to run equivalent LVM1 tool instead */
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if (!alias) {
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argv++;
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argc--;
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}
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if (!argc) {
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log_error("Falling back to LVM1 tools, but no "
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"command specified.");
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@ -3381,8 +3379,14 @@ int lvm2_main(int argc, char **argv)
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ret = ECMD_FAILED;
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goto_out;
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}
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if (!lvm_register_commands(run_name)) {
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ret = ECMD_FAILED;
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goto out;
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}
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if (!alias && !argc) {
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#ifdef READLINE_SUPPORT
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if (!alias && argc == 1) {
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_nonroot_warning();
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if (!_prepare_profiles(cmd)) {
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ret = ECMD_FAILED;
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@ -3390,19 +3394,12 @@ int lvm2_main(int argc, char **argv)
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}
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ret = lvm_shell(cmd, &_cmdline);
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goto out;
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}
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#else
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log_fatal("Please supply an LVM command.");
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_display_help();
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ret = EINVALID_CMD_LINE;
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goto out;
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#endif
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if (!alias) {
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if (argc < 2) {
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log_fatal("Please supply an LVM command.");
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_display_help();
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ret = EINVALID_CMD_LINE;
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goto out;
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}
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argc--;
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argv++;
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}
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_nonroot_warning();
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