3
3
* Password-prompt - Read a password from the terminal and print it
5
* Copyright © 2008-2019, 2021-2022 Teddy Hogeborn
6
* Copyright © 2008-2019, 2021-2022 Björn Påhlsson
8
* This file is part of Mandos.
10
* Mandos is free software: you can redistribute it and/or modify it
11
* under the terms of the GNU General Public License as published by
12
* the Free Software Foundation, either version 3 of the License, or
13
* (at your option) any later version.
15
* Mandos is distributed in the hope that it will be useful, but
5
* Copyright © 2008-2010 Teddy Hogeborn
6
* Copyright © 2008-2010 Björn Påhlsson
8
* This program is free software: you can redistribute it and/or
9
* modify it under the terms of the GNU General Public License as
10
* published by the Free Software Foundation, either version 3 of the
11
* License, or (at your option) any later version.
13
* This program is distributed in the hope that it will be useful, but
16
14
* WITHOUT ANY WARRANTY; without even the implied warranty of
17
15
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18
16
* General Public License for more details.
20
18
* You should have received a copy of the GNU General Public License
21
* along with Mandos. If not, see <http://www.gnu.org/licenses/>.
19
* along with this program. If not, see
20
* <http://www.gnu.org/licenses/>.
23
* Contact the authors at <mandos@recompile.se>.
22
* Contact the authors at <mandos@fukt.bsnet.se>.
26
#define _GNU_SOURCE /* vasprintf(),
27
program_invocation_short_name,
28
asprintf(), getline() */
29
#include <sys/types.h> /* sig_atomic_t, pid_t */
25
#define _GNU_SOURCE /* getline(), asprintf() */
27
#include <termios.h> /* struct termios, tcsetattr(),
28
TCSAFLUSH, tcgetattr(), ECHO */
29
#include <unistd.h> /* struct termios, tcsetattr(),
30
STDIN_FILENO, TCSAFLUSH,
31
tcgetattr(), ECHO, readlink() */
32
#include <signal.h> /* sig_atomic_t, raise(), struct
33
sigaction, sigemptyset(),
34
sigaction(), sigaddset(), SIGINT,
35
SIGQUIT, SIGHUP, SIGTERM,
37
#include <stddef.h> /* NULL, size_t, ssize_t */
38
#include <sys/types.h> /* ssize_t, struct dirent, pid_t,
40
#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,
42
#include <dirent.h> /* scandir(), alphasort() */
43
#include <stdio.h> /* fprintf(), stderr, getline(),
44
stdin, feof(), fputc()
46
#include <errno.h> /* errno, EBADF, ENOTTY, EINVAL,
47
EFAULT, EFBIG, EIO, ENOSPC, EINTR
49
#include <error.h> /* error() */
50
#include <iso646.h> /* or, not */
30
51
#include <stdbool.h> /* bool, false, true */
31
#include <argp.h> /* argp_program_version,
32
argp_program_bug_address,
34
struct argp_state, argp_state_help,
37
ARGP_HELP_EXIT_OK, ARGP_HELP_USAGE,
39
ARGP_ERR_UNKNOWN, argp_parse(),
40
ARGP_IN_ORDER, ARGP_NO_HELP */
41
#include <stdarg.h> /* va_list, va_start(), vfprintf() */
42
#include <stdio.h> /* vasprintf(), fprintf(), stderr,
43
vfprintf(), asprintf(), getline(),
44
stdin, feof(), clearerr(),
46
#include <errno.h> /* program_invocation_short_name,
47
errno, ENOENT, error_t, ENOMEM,
48
EINVAL, EBADF, ENOTTY, EFAULT,
49
EFBIG, EIO, ENOSPC, EINTR */
50
#include <string.h> /* strerror(), strrchr(), strcmp() */
51
#include <error.h> /* error() */
52
#include <stdlib.h> /* free(), realloc(), EXIT_SUCCESS,
53
EXIT_FAILURE, getenv() */
54
#include <unistd.h> /* access(), R_OK, ssize_t, close(),
55
read(), STDIN_FILENO, write(),
57
#include <dirent.h> /* struct dirent, scandir(),
59
#include <inttypes.h> /* uintmax_t, strtoumax() */
60
#include <iso646.h> /* or, and, not */
61
#include <fcntl.h> /* open(), O_RDONLY */
62
#include <stddef.h> /* NULL, size_t */
63
#include <termios.h> /* struct termios, tcgetattr(),
64
tcflag_t, ECHO, tcsetattr(),
66
#include <signal.h> /* struct sigaction, sigemptyset(),
67
sigaddset(), SIGINT, SIGHUP,
68
SIGTERM, SIG_IGN, SIG_DFL,
70
#include <sysexits.h> /* EX_OSERR, EX_USAGE, EX_UNAVAILABLE,
71
EX_IOERR, EX_OSFILE, EX_OK */
52
#include <inttypes.h> /* strtoumax() */
53
#include <sys/stat.h> /* struct stat, lstat(), open() */
54
#include <string.h> /* strlen, rindex, memcmp */
55
#include <argp.h> /* struct argp_option, struct
56
argp_state, struct argp,
57
argp_parse(), error_t,
58
ARGP_KEY_ARG, ARGP_KEY_END,
60
#include <sysexits.h> /* EX_SOFTWARE, EX_OSERR,
61
EX_UNAVAILABLE, EX_IOERR, EX_OK */
62
#include <fcntl.h> /* open() */
73
64
volatile sig_atomic_t quit_now = 0;
74
65
int signal_received;
75
66
bool debug = false;
76
67
const char *argp_program_version = "password-prompt " VERSION;
77
const char *argp_program_bug_address = "<mandos@recompile.se>";
68
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
79
70
/* Needed for conflict resolution */
80
71
const char plymouth_name[] = "plymouthd";
82
/* Function to use when printing errors */
83
__attribute__((format (gnu_printf, 3, 4)))
84
void error_plus(int status, int errnum, const char *formatstring,
90
va_start(ap, formatstring);
91
ret = vasprintf(&text, formatstring, ap);
93
fprintf(stderr, "Mandos plugin %s: ",
94
program_invocation_short_name);
95
vfprintf(stderr, formatstring, ap);
96
fprintf(stderr, ": %s\n", strerror(errnum));
97
error(status, errno, "vasprintf while printing error");
100
fprintf(stderr, "Mandos plugin ");
101
error(status, errnum, "%s", text);
105
73
static void termination_handler(int signum){
375
321
ret = sigaction(SIGINT, NULL, &old_action);
377
error_plus(0, errno, "sigaction");
323
error(0, errno, "sigaction");
380
326
if(old_action.sa_handler != SIG_IGN){
381
327
ret = sigaction(SIGINT, &new_action, NULL);
383
error_plus(0, errno, "sigaction");
329
error(0, errno, "sigaction");
387
333
ret = sigaction(SIGHUP, NULL, &old_action);
389
error_plus(0, errno, "sigaction");
335
error(0, errno, "sigaction");
392
338
if(old_action.sa_handler != SIG_IGN){
393
339
ret = sigaction(SIGHUP, &new_action, NULL);
395
error_plus(0, errno, "sigaction");
341
error(0, errno, "sigaction");
399
345
ret = sigaction(SIGTERM, NULL, &old_action);
401
error_plus(0, errno, "sigaction");
347
error(0, errno, "sigaction");
404
350
if(old_action.sa_handler != SIG_IGN){
405
351
ret = sigaction(SIGTERM, &new_action, NULL);
407
error_plus(0, errno, "sigaction");
353
error(0, errno, "sigaction");
added
removed
plugins.d/password-prompt.c
