1
/* -*- coding: utf-8 -*- */
3
* Passprompt - Read a password from the terminal and print it
5
* Copyright © 2007-2008 Teddy Hogeborn and Björn Påhlsson.
7
* This program is free software: you can redistribute it and/or
8
* modify it under the terms of the GNU General Public License as
9
* published by the Free Software Foundation, either version 3 of the
10
* License, or (at your option) any later version.
12
* This program is distributed in the hope that it will be useful, but
13
* WITHOUT ANY WARRANTY; without even the implied warranty of
14
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15
* General Public License for more details.
17
* You should have received a copy of the GNU General Public License
18
* along with this program. If not, see
19
* <http://www.gnu.org/licenses/>.
21
* Contact the authors at <https://www.fukt.bsnet.se/~belorn/> and
22
* <https://www.fukt.bsnet.se/~teddy/>.
25
1
#define _GNU_SOURCE /* getline() */
26
2
#define _FORTIFY_SOURCE 2
28
3
#include <termios.h> /* struct termios, tcsetattr(),
29
4
TCSAFLUSH, tcgetattr(), ECHO */
30
5
#include <unistd.h> /* struct termios, tcsetattr(),
36
11
SIGQUIT, SIGHUP, SIGTERM */
37
12
#include <stddef.h> /* NULL, size_t */
38
13
#include <sys/types.h> /* ssize_t */
39
#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,
14
#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE */
41
15
#include <stdio.h> /* fprintf(), stderr, getline(),
42
16
stdin, feof(), perror(), fputc(),
43
stdout, getopt_long */
44
18
#include <errno.h> /* errno, EINVAL */
45
19
#include <iso646.h> /* or, not */
46
20
#include <stdbool.h> /* bool, false, true */
47
21
#include <string.h> /* strlen, rindex, strncmp, strcmp */
48
#include <getopt.h> /* getopt_long */
50
23
volatile bool quit_now = false;
51
24
bool debug = false;
53
void termination_handler(__attribute__((unused))int signum){
26
void termination_handler(int signum){
57
30
int main(int argc, char **argv){
60
33
struct termios t_new, t_old;
61
34
char *buffer = NULL;
63
35
int status = EXIT_SUCCESS;
64
36
struct sigaction old_action,
65
37
new_action = { .sa_handler = termination_handler,
69
static struct option long_options[] = {
70
{"debug", no_argument, (int *)&debug, 1},
71
{"prefix", required_argument, 0, 'p'},
75
ret = getopt_long (argc, argv, "p:", long_options, &option_index);
88
fprintf(stderr, "bad arguments\n");
39
const char db[] = "--debug";
40
char *basename = rindex(argv[0], '/');
47
char *program_name = malloc(strlen(basename) + sizeof(db));
48
if (program_name == NULL){
53
program_name[0] = '\0';
55
for (int i = 1; i < argc; i++){
56
if (not strncmp(argv[i], db, 5)){
57
strcat(strcat(strcat(program_name, db ), "="), basename);
58
if(not strcmp(argv[i], db) or not strcmp(argv[i], program_name)){
94
66
fprintf(stderr, "Starting %s\n", argv[0]);
139
111
status = EXIT_FAILURE;
144
fprintf(stderr, "%s Password: ", prefix);
146
fprintf(stderr, "Password: ");
114
fprintf(stderr, "Password: ");
148
115
ret = getline(&buffer, &n, stdin);
150
117
fprintf(stdout, "%s", buffer);