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
85
86
87
88
89
90
91
92
93
94
95
96
|
/* Bless processes.
Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of the GNU Hurd.
The GNU Hurd 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 2, or (at
your option) any later version.
The GNU Hurd 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 the GNU Hurd. If not, see <http://www.gnu.org/licenses/>. */
#include <argp.h>
#include <assert.h>
#include <error.h>
#include <hurd.h>
#include <mach.h>
#include <version.h>
const char *argp_program_version = STANDARD_HURD_VERSION (bless);
pid_t pid;
static const struct argp_option options[] =
{
{0}
};
static const char args_doc[] = "PID";
static const char doc[] = "Bless the given process. Such a process is "
"considered an essential part of the operating system and is not "
"terminated when switching runlevels.";
/* Parse our options... */
error_t
parse_opt (int key, char *arg, struct argp_state *state)
{
char *end;
switch (key)
{
case ARGP_KEY_ARG:
if (state->arg_num > 0)
argp_error (state, "Too many non option arguments");
pid = strtol (arg, &end, 10);
if (arg == end || *end != '\0')
argp_error (state, "Malformed pid '%s'", arg);
break;
case ARGP_KEY_NO_ARGS:
argp_usage (state);
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
const struct argp argp =
{
options: options,
parser: parse_opt,
args_doc: args_doc,
doc: doc,
};
int
main (int argc, char **argv)
{
error_t err;
process_t proc;
/* Parse our arguments. */
argp_parse (&argp, argc, argv, 0, 0, 0);
err = proc_pid2proc (getproc (), pid, &proc);
if (err)
error (1, err, "Could not get process for pid %d", pid);
err = proc_mark_important (proc);
if (err)
error (1, err, "Could not mark process as important");
err = mach_port_deallocate (mach_task_self (), proc);
assert_perror (err);
return EXIT_SUCCESS;
}
|
