1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/* rescue_parser.c - rescue mode parser */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 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/types.h>
#include <grub/mm.h>
#include <grub/env.h>
#include <grub/parser.h>
#include <grub/misc.h>
#include <grub/command.h>
#include <grub/i18n.h>
grub_err_t
grub_rescue_parse_line (char *line,
grub_reader_getline_t getline, void *getline_data)
{
char *name;
int n;
grub_command_t cmd;
char **args;
if (grub_parser_split_cmdline (line, getline, getline_data, &n, &args)
|| n < 0)
return grub_errno;
if (n == 0)
return GRUB_ERR_NONE;
/* In case of an assignment set the environment accordingly
instead of calling a function. */
if (n == 1)
{
char *val = grub_strchr (args[0], '=');
if (val)
{
val[0] = 0;
grub_env_set (args[0], val + 1);
val[0] = '=';
goto quit;
}
}
/* Get the command name. */
name = args[0];
/* If nothing is specified, restart. */
if (*name == '\0')
goto quit;
cmd = grub_command_find (name);
if (cmd)
{
(cmd->func) (cmd, n - 1, &args[1]);
}
else
{
grub_printf_ (N_("Unknown command `%s'.\n"), name);
if (grub_command_find ("help"))
grub_printf ("Try `help' for usage\n");
}
quit:
/* Arguments are returned in single memory chunk separated by zeroes */
grub_free (args[0]);
grub_free (args);
return grub_errno;
}
|
