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  • Committer: Teddy Hogeborn
  • Date: 2019-07-18 00:02:43 UTC
  • Revision ID: teddy@recompile.se-20190718000243-okz4s9xao1r1tfnx
Document bug in mandos-keygen which strips white space from passwords

Passwords, as read by mandos-keygen when given the --password or -p
options, are stripped of white space from the start and from the end
of the password.  This is because mandos-keygen is a shell script, and
the Bourne Shell "read" builtin does not seem to have a way to avoid
this.  Document this bug.

* manods-keygen.xml (OPTIONS): Document the white space-stripping
                               nature of the --password/-p option, and
                               also note in the description of
                               --passfile and -F that they avoid this
                               behavior.
  (BUGS): Again mention the problem with the --password and -p
          options, and suggest --passfile as a possible workaround.

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plugins.d/askpass-fifo.c
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/*
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 * Askpass-FIFO - Read a password from a FIFO and output it
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 * 
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 * Copyright © 2008-2019, 2021 Teddy Hogeborn
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 * Copyright © 2008-2019, 2021 Björn Påhlsson
 
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 * Copyright © 2008-2019 Teddy Hogeborn
 
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 * Copyright © 2008-2019 Björn Påhlsson
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 * 
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 * This file is part of Mandos.
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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 */
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#include <sys/types.h>          /* uid_t, gid_t, getuid(), getgid(),
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                                   setgid(), setuid() */
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#include <unistd.h>             /* uid_t, gid_t, ssize_t, getuid(),
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                                   getgid(), setgid(), setuid(),
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                                   read(), close(), write(),
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                                   STDOUT_FILENO */
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#include <stdarg.h>             /* va_list, va_start(), vfprintf() */
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#include <stdio.h>              /* vasprintf(), fprintf(), stderr,
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                                   vfprintf() */
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#include <errno.h>              /* program_invocation_short_name,
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                                   errno, EACCES, ENOTDIR, ELOOP,
 
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#define _GNU_SOURCE             /* TEMP_FAILURE_RETRY() */
 
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#include <sys/types.h>          /* uid_t, gid_t, ssize_t */
 
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#include <sys/stat.h>           /* mkfifo(), S_IRUSR, S_IWUSR */
 
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#include <iso646.h>             /* and */
 
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#include <errno.h>              /* errno, EACCES, ENOTDIR, ELOOP,
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                                   ENAMETOOLONG, ENOSPC, EROFS,
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                                   ENOENT, EEXIST, EFAULT, EMFILE,
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                                   ENFILE, ENOMEM, EBADF, EINVAL, EIO,
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                                   EISDIR, EFBIG */
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#include <string.h>             /* strerror() */
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#include <error.h>              /* error() */
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#include <stdlib.h>             /* free(), realloc(), EXIT_SUCCESS */
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#include <sys/stat.h>           /* mkfifo(), S_IRUSR, S_IWUSR */
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#include <sysexits.h>           /* EX_OSFILE, EX_OSERR,
 
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#include <stdio.h>              /* fprintf(), vfprintf(),
 
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                                   vasprintf() */
 
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#include <stdlib.h>             /* EXIT_FAILURE, NULL, size_t, free(),
 
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                                   realloc(), EXIT_SUCCESS */
 
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#include <fcntl.h>              /* open(), O_RDONLY */
 
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#include <unistd.h>             /* read(), close(), write(),
 
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                                   STDOUT_FILENO */
 
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#include <sysexits.h>           /* EX_OSERR, EX_OSFILE,
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                                   EX_UNAVAILABLE, EX_IOERR */
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#include <fcntl.h>              /* open(), O_RDONLY */
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#include <stddef.h>             /* NULL, size_t */
 
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#include <string.h>             /* strerror() */
 
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#include <stdarg.h>             /* va_list, va_start(), ... */
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uid_t uid = 65534;
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gid_t gid = 65534;