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  • Committer: Teddy Hogeborn
  • Date: 2014-07-25 22:44:20 UTC
  • mto: (237.7.272 trunk)
  • mto: This revision was merged to the branch mainline in revision 321.
  • Revision ID: teddy@recompile.se-20140725224420-4a5ct2ptt0hsc92z
Require Python 2.7.

This is in preparation for the eventual move to Python 3, which will
happen as soon as all Python modules required by Mandos are available.
The mandos-ctl and mandos-monitor programs are already portable
between Python 2.6 and Python 3 without changes; this change will
bring the requirement up to Python 2.7.

* INSTALL (Prerequisites/Libraries/Mandos Server): Document
                                                   requirement of
                                                   Python 2.7; remove
                                                   Python-argparse
                                                   which is in the
                                                   Python 2.7 standard
                                                   library.
* debian/control (Source: mandos/Build-Depends-Indep): Depend on
                                                       exactly the
                                                       python2.7
                                                       package and all
                                                       the Python 2.7
                                                       versions of the
                                                       python modules.
  (Package: mandos/Depends): - '' - but still depend on python (<=2.7)
                            and the generic versions of the Python
                            modules; this is for mandos-ctl and
                            mandos-monitor, both of which are
                            compatible with Python 3, and use
                            #!/usr/bin/python.
* mandos: Use #!/usr/bin/python2.7 instead of #!/usr/bin/python.

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/*
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 * Password-prompt - Read a password from the terminal and print it
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 * 
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 * Copyright © 2008-2019, 2021-2022 Teddy Hogeborn
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 * Copyright © 2008-2019, 2021-2022 Björn Påhlsson
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 * 
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 * This file is part of Mandos.
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 * 
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 * Mandos is free software: you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 * 
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 * Mandos is distributed in the hope that it will be useful, but
 
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 * Copyright © 2008-2014 Teddy Hogeborn
 
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 * Copyright © 2008-2014 Björn Påhlsson
 
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 * 
 
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 * 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.
 
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 * 
 
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 * This program is distributed in the hope that it will be useful, but
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 * WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * General Public License for more details.
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 * 
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 * You should have received a copy of the GNU General Public License
21
 
 * along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
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 * along with this program.  If not, see
 
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 * <http://www.gnu.org/licenses/>.
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 * 
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 * Contact the authors at <mandos@recompile.se>.
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 */
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#define _GNU_SOURCE             /* vasprintf(),
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                                   program_invocation_short_name,
28
 
                                   asprintf(), getline() */
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#include <sys/types.h>          /* sig_atomic_t, pid_t */
 
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#define _GNU_SOURCE             /* getline(), asprintf() */
 
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27
#include <termios.h>            /* struct termios, tcsetattr(),
 
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                                   TCSAFLUSH, tcgetattr(), ECHO */
 
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#include <unistd.h>             /* struct termios, tcsetattr(),
 
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                                   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,
 
36
                                   raise() */
 
37
#include <stddef.h>             /* NULL, size_t, ssize_t */
 
38
#include <sys/types.h>          /* ssize_t, struct dirent, pid_t,
 
39
                                   ssize_t, open() */
 
40
#include <stdlib.h>             /* EXIT_SUCCESS, EXIT_FAILURE,
 
41
                                   getenv(), free() */
 
42
#include <dirent.h>             /* scandir(), alphasort() */
 
43
#include <stdio.h>              /* fprintf(), stderr, getline(),
 
44
                                   stdin, feof(), fputc(), vfprintf(),
 
45
                                   vasprintf() */
 
46
#include <errno.h>              /* errno, EBADF, ENOTTY, EINVAL,
 
47
                                   EFAULT, EFBIG, EIO, ENOSPC, EINTR
 
48
                                */
 
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,
33
 
                                   struct argp_option,
34
 
                                   struct argp_state, argp_state_help,
35
 
                                   ARGP_HELP_STD_HELP,
36
 
                                   ARGP_HELP_EXIT_ERR,
37
 
                                   ARGP_HELP_EXIT_OK, ARGP_HELP_USAGE,
38
 
                                   argp_err_exit_status,
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(),
45
 
                                   fputc() */
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(),
56
 
                                   STDOUT_FILENO */
57
 
#include <dirent.h>             /* struct dirent, scandir(),
58
 
                                   alphasort() */
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(),
65
 
                                   TCSAFLUSH */
66
 
#include <signal.h>             /* struct sigaction, sigemptyset(),
67
 
                                   sigaddset(), SIGINT, SIGHUP,
68
 
                                   SIGTERM, SIG_IGN, SIG_DFL,
69
 
                                   raise() */
70
 
#include <sysexits.h>           /* EX_OSERR, EX_USAGE, EX_UNAVAILABLE,
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                                   EX_IOERR, EX_OSFILE, EX_OK */
 
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#include <inttypes.h>           /* strtoumax() */
 
53
#include <sys/stat.h>           /* struct stat, lstat(), open() */
 
54
#include <string.h>             /* strlen, rindex, memcmp, strerror()
 
55
                                 */
 
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#include <argp.h>               /* struct argp_option, struct
 
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                                   argp_state, struct argp,
 
58
                                   argp_parse(), error_t,
 
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                                   ARGP_KEY_ARG, ARGP_KEY_END,
 
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                                   ARGP_ERR_UNKNOWN */
 
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#include <sysexits.h>           /* EX_SOFTWARE, EX_OSERR,
 
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                                   EX_UNAVAILABLE, EX_IOERR, EX_OK */
 
63
#include <fcntl.h>              /* open() */
 
64
#include <stdarg.h>             /* va_list, va_start(), ... */
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volatile sig_atomic_t quit_now = 0;
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int signal_received;
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     from the terminal.  Password-prompt will exit if it detects
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     plymouth since plymouth performs the same functionality.
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   */
119
 
  if(access("/run/plymouth/pid", R_OK) == 0){
120
 
    return true;
121
 
  }
122
 
  
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  __attribute__((nonnull))
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  int is_plymouth(const struct dirent *proc_entry){
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    int ret;
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  if(ret == -1){
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    error_plus(1, errno, "scandir");
228
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  }
229
 
  {
230
 
    int i = ret;
231
 
    while(i--){
232
 
      free(direntries[i]);
233
 
    }
234
 
  }
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  free(direntries);
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  return ret > 0;
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}
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  struct termios t_new, t_old;
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  char *buffer = NULL;
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  char *prefix = NULL;
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  char *prompt = NULL;
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  int status = EXIT_SUCCESS;
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  struct sigaction old_action,
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    new_action = { .sa_handler = termination_handler,
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      { .name = "prefix", .key = 'p',
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        .arg = "PREFIX", .flags = 0,
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        .doc = "Prefix shown before the prompt", .group = 2 },
257
 
      { .name = "prompt", .key = 129,
258
 
        .arg = "PROMPT", .flags = 0,
259
 
        .doc = "The prompt to show", .group = 2 },
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      { .name = "debug", .key = 128,
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        .doc = "Debug mode", .group = 3 },
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      /*
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    error_t parse_opt (int key, char *arg, struct argp_state *state){
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      errno = 0;
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      switch (key){
278
 
      case 'p':                 /* --prefix */
 
257
      case 'p':
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        prefix = arg;
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        break;
281
 
      case 128:                 /* --debug */
 
260
      case 128:
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        debug = true;
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        break;
284
 
      case 129:                 /* --prompt */
285
 
        prompt = arg;
286
 
        break;
287
263
        /*
288
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         * These reproduce what we would get without ARGP_NO_HELP
289
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         */
291
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        argp_state_help(state, state->out_stream,
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                        (ARGP_HELP_STD_HELP | ARGP_HELP_EXIT_ERR)
293
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                        & ~(unsigned int)ARGP_HELP_EXIT_OK);
294
 
        __builtin_unreachable();
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      case -3:                  /* --usage */
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        argp_state_help(state, state->out_stream,
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                        ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
298
 
        __builtin_unreachable();
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      case 'V':                 /* --version */
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        fprintf(state->out_stream, "%s\n", argp_program_version);
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        exit(argp_err_exit_status);
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    if(prefix){
445
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      fprintf(stderr, "%s ", prefix);
446
420
    }
447
 
    if(prompt != NULL){
448
 
      fprintf(stderr, "%s: ", prompt);
449
 
    } else {
 
421
    {
450
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      const char *cryptsource = getenv("CRYPTTAB_SOURCE");
451
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      const char *crypttarget = getenv("CRYPTTAB_NAME");
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      /* Before cryptsetup 1.1.0~rc2 */
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    }
528
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    if(sret < 0){
529
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      int e = errno;
530
 
      if(errno != EINTR){
531
 
        if(not feof(stdin)){
532
 
          error_plus(0, errno, "getline");
533
 
          switch(e){
534
 
          case EBADF:
535
 
            status = EX_UNAVAILABLE;
536
 
            break;
537
 
          case EIO:
538
 
          case EINVAL:
539
 
          default:
540
 
            status = EX_IOERR;
541
 
            break;
542
 
          }
543
 
          break;
544
 
        } else {
545
 
          clearerr(stdin);
 
502
      if(errno != EINTR and not feof(stdin)){
 
503
        error_plus(0, errno, "getline");
 
504
        switch(e){
 
505
        case EBADF:
 
506
          status = EX_UNAVAILABLE;
 
507
          break;
 
508
        case EIO:
 
509
        case EINVAL:
 
510
        default:
 
511
          status = EX_IOERR;
 
512
          break;
546
513
        }
 
514
        break;
547
515
      }
548
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    }
549
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    /* if(sret == 0), then the only sensible thing to do is to retry