From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:29:51 +0200 Subject: Adding upstream version 2.06. Signed-off-by: Daniel Baumann --- grub-core/commands/terminal.c | 285 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 285 insertions(+) create mode 100644 grub-core/commands/terminal.c (limited to 'grub-core/commands/terminal.c') diff --git a/grub-core/commands/terminal.c b/grub-core/commands/terminal.c new file mode 100644 index 0000000..37e0ab8 --- /dev/null +++ b/grub-core/commands/terminal.c @@ -0,0 +1,285 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2009,2010 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +GRUB_MOD_LICENSE ("GPLv3+"); + +struct grub_term_autoload *grub_term_input_autoload = NULL; +struct grub_term_autoload *grub_term_output_autoload = NULL; + +struct abstract_terminal +{ + struct abstract_terminal *next; + struct abstract_terminal *prev; + const char *name; + grub_err_t (*init) (struct abstract_terminal *term); + grub_err_t (*fini) (struct abstract_terminal *term); +}; + +static grub_err_t +handle_command (int argc, char **args, struct abstract_terminal **enabled, + struct abstract_terminal **disabled, + struct grub_term_autoload *autoloads, + const char *active_str, + const char *available_str) +{ + int i; + struct abstract_terminal *term; + struct grub_term_autoload *aut; + + if (argc == 0) + { + grub_puts_ (active_str); + for (term = *enabled; term; term = term->next) + grub_printf ("%s ", term->name); + grub_printf ("\n"); + grub_puts_ (available_str); + for (term = *disabled; term; term = term->next) + grub_printf ("%s ", term->name); + /* This is quadratic but we don't expect mode than 30 terminal + modules ever. */ + for (aut = autoloads; aut; aut = aut->next) + { + for (term = *disabled; term; term = term->next) + if (grub_strcmp (term->name, aut->name) == 0 + || (aut->name[0] && aut->name[grub_strlen (aut->name) - 1] == '*' + && grub_memcmp (term->name, aut->name, + grub_strlen (aut->name) - 1) == 0)) + break; + if (!term) + for (term = *enabled; term; term = term->next) + if (grub_strcmp (term->name, aut->name) == 0 + || (aut->name[0] && aut->name[grub_strlen (aut->name) - 1] == '*' + && grub_memcmp (term->name, aut->name, + grub_strlen (aut->name) - 1) == 0)) + break; + if (!term) + grub_printf ("%s ", aut->name); + } + grub_printf ("\n"); + return GRUB_ERR_NONE; + } + i = 0; + + if (grub_strcmp (args[0], "--append") == 0 + || grub_strcmp (args[0], "--remove") == 0) + i++; + + if (i == argc) + return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("no terminal specified")); + + for (; i < argc; i++) + { + int again = 0; + while (1) + { + for (term = *disabled; term; term = term->next) + if (grub_strcmp (args[i], term->name) == 0 + || (grub_strcmp (args[i], "ofconsole") == 0 + && grub_strcmp ("console", term->name) == 0)) + break; + if (term == 0) + for (term = *enabled; term; term = term->next) + if (grub_strcmp (args[i], term->name) == 0 + || (grub_strcmp (args[i], "ofconsole") == 0 + && grub_strcmp ("console", term->name) == 0)) + break; + if (term) + break; + if (again) + return grub_error (GRUB_ERR_BAD_ARGUMENT, + N_("terminal `%s' isn't found"), + args[i]); + for (aut = autoloads; aut; aut = aut->next) + if (grub_strcmp (args[i], aut->name) == 0 + || (grub_strcmp (args[i], "ofconsole") == 0 + && grub_strcmp ("console", aut->name) == 0) + || (aut->name[0] && aut->name[grub_strlen (aut->name) - 1] == '*' + && grub_memcmp (args[i], aut->name, + grub_strlen (aut->name) - 1) == 0)) + { + grub_dl_t mod; + mod = grub_dl_load (aut->modname); + if (mod) + grub_dl_ref (mod); + grub_errno = GRUB_ERR_NONE; + break; + } + if (grub_memcmp (args[i], "serial_usb", + sizeof ("serial_usb") - 1) == 0 + && grub_term_poll_usb) + { + grub_term_poll_usb (1); + again = 1; + continue; + } + if (!aut) + return grub_error (GRUB_ERR_BAD_ARGUMENT, + N_("terminal `%s' isn't found"), + args[i]); + again = 1; + } + } + + if (grub_strcmp (args[0], "--append") == 0) + { + for (i = 1; i < argc; i++) + { + for (term = *disabled; term; term = term->next) + if (grub_strcmp (args[i], term->name) == 0 + || (grub_strcmp (args[i], "ofconsole") == 0 + && grub_strcmp ("console", term->name) == 0)) + break; + if (term) + { + if (term->init && term->init (term) != GRUB_ERR_NONE) + return grub_errno; + + grub_list_remove (GRUB_AS_LIST (term)); + grub_list_push (GRUB_AS_LIST_P (enabled), GRUB_AS_LIST (term)); + } + } + return GRUB_ERR_NONE; + } + + if (grub_strcmp (args[0], "--remove") == 0) + { + for (i = 1; i < argc; i++) + { + for (term = *enabled; term; term = term->next) + if (grub_strcmp (args[i], term->name) == 0 + || (grub_strcmp (args[i], "ofconsole") == 0 + && grub_strcmp ("console", term->name) == 0)) + break; + if (term) + { + if (!term->next && term == *enabled) + return grub_error (GRUB_ERR_BAD_ARGUMENT, + "can't remove the last terminal"); + grub_list_remove (GRUB_AS_LIST (term)); + if (term->fini) + term->fini (term); + grub_list_push (GRUB_AS_LIST_P (disabled), GRUB_AS_LIST (term)); + } + } + return GRUB_ERR_NONE; + } + for (i = 0; i < argc; i++) + { + for (term = *disabled; term; term = term->next) + if (grub_strcmp (args[i], term->name) == 0 + || (grub_strcmp (args[i], "ofconsole") == 0 + && grub_strcmp ("console", term->name) == 0)) + break; + if (term) + { + if (term->init && term->init (term) != GRUB_ERR_NONE) + return grub_errno; + + grub_list_remove (GRUB_AS_LIST (term)); + grub_list_push (GRUB_AS_LIST_P (enabled), GRUB_AS_LIST (term)); + } + } + + { + struct abstract_terminal *next; + for (term = *enabled; term; term = next) + { + next = term->next; + for (i = 0; i < argc; i++) + if (grub_strcmp (args[i], term->name) == 0 + || (grub_strcmp (args[i], "ofconsole") == 0 + && grub_strcmp ("console", term->name) == 0)) + break; + if (i == argc) + { + if (!term->next && term == *enabled) + return grub_error (GRUB_ERR_BAD_ARGUMENT, + "can't remove the last terminal"); + grub_list_remove (GRUB_AS_LIST (term)); + if (term->fini) + term->fini (term); + grub_list_push (GRUB_AS_LIST_P (disabled), GRUB_AS_LIST (term)); + } + } + } + + return GRUB_ERR_NONE; +} + +static grub_err_t +grub_cmd_terminal_input (grub_command_t cmd __attribute__ ((unused)), + int argc, char **args) +{ + (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, next); + (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, prev); + (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, name); + (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, init); + (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, fini); + return handle_command (argc, args, + (struct abstract_terminal **) (void *) &grub_term_inputs, + (struct abstract_terminal **) (void *) &grub_term_inputs_disabled, + grub_term_input_autoload, + N_("Active input terminals:"), + N_("Available input terminals:")); +} + +static grub_err_t +grub_cmd_terminal_output (grub_command_t cmd __attribute__ ((unused)), + int argc, char **args) +{ + (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, next); + (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, prev); + (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, name); + (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, init); + (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, fini); + return handle_command (argc, args, + (struct abstract_terminal **) (void *) &grub_term_outputs, + (struct abstract_terminal **) (void *) &grub_term_outputs_disabled, + grub_term_output_autoload, + N_("Active output terminals:"), + N_("Available output terminals:")); +} + +static grub_command_t cmd_terminal_input, cmd_terminal_output; + +GRUB_MOD_INIT(terminal) +{ + cmd_terminal_input = + grub_register_command ("terminal_input", grub_cmd_terminal_input, + N_("[--append|--remove] " + "[TERMINAL1] [TERMINAL2] ..."), + N_("List or select an input terminal.")); + cmd_terminal_output = + grub_register_command ("terminal_output", grub_cmd_terminal_output, + N_("[--append|--remove] " + "[TERMINAL1] [TERMINAL2] ..."), + N_("List or select an output terminal.")); +} + +GRUB_MOD_FINI(terminal) +{ + grub_unregister_command (cmd_terminal_input); + grub_unregister_command (cmd_terminal_output); +} -- cgit v1.2.3