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  • Committer: Teddy Hogeborn
  • Date: 2024-09-22 17:38:57 UTC
  • Revision ID: teddy@recompile.se-20240922173857-rfhxneq4207tx9o0
Only use D-Bus when necessary

If *both* "use_dbus" and "zeroconf" are false, by either setting them
to False in mandos.conf or by using the --no-dbus and --no-zeroconf
options (and a port number or socket is specified), then we do not
need to connect to D-Bus at all.

From: Mike Klein <mike@kleinnet.com>
Signed-off-by: Teddy Hogeborn <teddy@recompile.se>

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plugins.d/usplash.c
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/*
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 * Usplash - Read a password from usplash and output it
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 * 
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 * Copyright © 2008-2018 Teddy Hogeborn
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 * Copyright © 2008-2018 Björn Påhlsson
 
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 * Copyright © 2008-2018, 2021-2022 Teddy Hogeborn
 
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 * Copyright © 2008-2018, 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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 * Contact the authors at <mandos@recompile.se>.
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 */
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#define _GNU_SOURCE             /* asprintf(), TEMP_FAILURE_RETRY() */
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#include <signal.h>             /* sig_atomic_t, struct sigaction,
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                                   sigemptyset(), sigaddset(), SIGINT,
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                                   SIGHUP, SIGTERM, sigaction(),
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                                   SIG_IGN, kill(), SIGKILL */
 
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#define _GNU_SOURCE             /* vasprintf(),
 
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                                   program_invocation_short_name,
 
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                                   asprintf(), TEMP_FAILURE_RETRY() */
 
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#include <sys/types.h>          /* sig_atomic_t, pid_t, setuid(),
 
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                                   geteuid(), setsid() */
 
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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(), asprintf() */
 
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#include <errno.h>              /* program_invocation_short_name,
 
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                                   errno, ENOENT, EINTR */
 
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#include <string.h>             /* strerror(), strlen(), memcmp() */
 
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#include <error.h>              /* error() */
 
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#include <stdlib.h>             /* free(), getenv(), realloc(),
 
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                                   EXIT_FAILURE, EXIT_SUCCESS,
 
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                                   malloc(), abort() */
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#include <stdbool.h>            /* bool, false, true */
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#include <fcntl.h>              /* open(), O_WRONLY, O_RDONLY */
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#include <iso646.h>             /* and, or, not*/
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#include <errno.h>              /* errno, EINTR */
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#include <error.h>
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#include <sys/types.h>          /* size_t, ssize_t, pid_t, DIR, struct
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                                   dirent */
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#include <stddef.h>             /* NULL */
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#include <string.h>             /* strlen(), memcmp(), strerror() */
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#include <stdio.h>              /* asprintf(), vasprintf(), vprintf(),
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                                   fprintf() */
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#include <unistd.h>             /* close(), write(), readlink(),
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                                   read(), STDOUT_FILENO, sleep(),
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                                   fork(), setuid(), geteuid(),
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                                   setsid(), chdir(), dup2(),
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                                   STDERR_FILENO, execv() */
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#include <stdlib.h>             /* free(), EXIT_FAILURE, realloc(),
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                                   EXIT_SUCCESS, malloc(), _exit(),
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                                   getenv() */
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#include <dirent.h>             /* opendir(), readdir(), closedir() */
 
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#include <stddef.h>             /* size_t, NULL */
 
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#include <unistd.h>             /* close(), ssize_t, write(),
 
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                                   readlink(), read(), STDOUT_FILENO,
 
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                                   sleep(), fork(), setuid(),
 
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                                   geteuid(), setsid(), chdir(),
 
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                                   _exit(), dup2(), STDERR_FILENO,
 
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                                   execv(), TEMP_FAILURE_RETRY(),
 
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                                   pause() */
 
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#include <dirent.h>             /* DIR, opendir(), struct dirent,
 
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                                   readdir(), closedir() */
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#include <inttypes.h>           /* intmax_t, strtoimax() */
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#include <sys/stat.h>           /* struct stat, lstat(), S_ISLNK */
 
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#include <iso646.h>             /* or, not, and */
 
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#include <sys/stat.h>           /* struct stat, lstat(), S_ISLNK() */
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#include <sysexits.h>           /* EX_OSERR, EX_UNAVAILABLE */
 
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#include <signal.h>             /* struct sigaction, sigemptyset(),
 
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                                   sigaddset(), SIGINT, SIGHUP,
 
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                                   SIGTERM, SIG_IGN, kill(), SIGKILL,
 
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                                   SIG_DFL, raise() */
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#include <argz.h>               /* argz_count(), argz_extract() */
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#include <stdarg.h>             /* va_list, va_start(), ... */
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sig_atomic_t interrupted_by_signal = 0;
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int signal_received;