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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/commands/read.c | |
parent | Initial commit. (diff) | |
download | grub2-3e86199209a10ed6555e30b8b71884cb7cc45ed2.tar.xz grub2-3e86199209a10ed6555e30b8b71884cb7cc45ed2.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'grub-core/commands/read.c')
-rw-r--r-- | grub-core/commands/read.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/grub-core/commands/read.c b/grub-core/commands/read.c new file mode 100644 index 0000000..fe3e88b --- /dev/null +++ b/grub-core/commands/read.c @@ -0,0 +1,92 @@ +/* read.c - Command to read variables from user. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2006,2007,2008 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 <http://www.gnu.org/licenses/>. + */ + +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/env.h> +#include <grub/term.h> +#include <grub/types.h> +#include <grub/command.h> +#include <grub/i18n.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static char * +grub_getline (void) +{ + int i; + char *line; + char *tmp; + char c; + + i = 0; + line = grub_malloc (1 + i + sizeof('\0')); + if (! line) + return NULL; + + while (1) + { + c = grub_getkey (); + if ((c == '\n') || (c == '\r')) + break; + + line[i] = c; + if (grub_isprint (c)) + grub_printf ("%c", c); + i++; + tmp = grub_realloc (line, 1 + i + sizeof('\0')); + if (! tmp) + { + grub_free (line); + return NULL; + } + line = tmp; + } + line[i] = '\0'; + + return line; +} + +static grub_err_t +grub_cmd_read (grub_command_t cmd __attribute__ ((unused)), int argc, char **args) +{ + char *line = grub_getline (); + if (! line) + return grub_errno; + if (argc > 0) + grub_env_set (args[0], line); + + grub_free (line); + return 0; +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(read) +{ + cmd = grub_register_command ("read", grub_cmd_read, + N_("[ENVVAR]"), + N_("Set variable with user input.")); +} + +GRUB_MOD_FINI(read) +{ + grub_unregister_command (cmd); +} |