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  • Committer: Teddy Hogeborn
  • Date: 2019-08-04 12:42:49 UTC
  • mto: This revision was merged to the branch mainline in revision 388.
  • Revision ID: teddy@recompile.se-20190804124249-69cq19d1bgbmm0gh
Describe role of password-agent(8mandos) in intro(8mandos)

Describe the role of password-agent(8mandos) in the intro(8mandos)
manual.

* intro.xml (SYSTEMD): New section.
  (SEE ALSO): Add reference to password-agent(8mandos).

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plugins.d/plymouth.c
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/*
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 * Plymouth - Read a password from Plymouth and output it
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 * 
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 * Copyright © 2010-2021 Teddy Hogeborn
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 * Copyright © 2010-2021 Björn Påhlsson
 
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 * Copyright © 2010-2019 Teddy Hogeborn
 
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 * Copyright © 2010-2019 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             /* program_invocation_short_name,
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                                   vasprintf(), asprintf(),
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                                   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 <argp.h>               /* argp_program_version,
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                                   argp_program_bug_address,
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                                   struct argp_option,
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                                   struct argp_state,
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                                   ARGP_ERR_UNKNOWN, struct argp,
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                                   argp_parse(), ARGP_IN_ORDER */
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#include <stddef.h>             /* NULL, size_t */
 
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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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                                   kill(), SIG_IGN */
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#include <stdbool.h>            /* bool, false, true */
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#include <stdio.h>              /* FILE, fprintf(), vfprintf(),
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                                   vasprintf(), stderr, asprintf(),
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                                   fopen(), fscanf(), fclose(),
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                                   sscanf() */
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#include <stdarg.h>             /* va_list, va_start(), vfprintf() */
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#include <errno.h>              /* program_invocation_short_name,
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                                   errno, ENOMEM, EINTR, ENOENT,
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                                   error_t, EINVAL */
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#include <string.h>             /* strerror(), strdup(), memcmp() */
 
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#include <fcntl.h>              /* open(), O_RDONLY */
 
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#include <iso646.h>             /* and, or, not*/
 
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#include <sys/types.h>          /* size_t, ssize_t, pid_t, struct
 
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                                   dirent, waitpid() */
 
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#include <sys/wait.h>           /* waitpid() */
 
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#include <stddef.h>             /* NULL */
 
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#include <string.h>             /* strchr(), memcmp() */
 
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#include <stdio.h>              /* asprintf(), perror(), fopen(),
 
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                                   fscanf(), vasprintf(), fprintf(),
 
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                                   vfprintf() */
 
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#include <unistd.h>             /* close(), readlink(), read(),
 
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                                   fork(), setsid(), chdir(), dup2(),
 
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                                   STDERR_FILENO, execv(), access() */
 
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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>             /* scandir(), alphasort() */
 
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#include <inttypes.h>           /* intmax_t, strtoumax(), SCNuMAX */
 
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#include <sys/stat.h>           /* struct stat, lstat() */
 
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#include <sysexits.h>           /* EX_OSERR, EX_UNAVAILABLE */
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#include <error.h>              /* error() */
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#include <stdlib.h>             /* free(), getenv(), malloc(),
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                                   reallocarray(), realloc(),
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                                   EXIT_FAILURE, EXIT_SUCCESS */
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#include <unistd.h>             /* TEMP_FAILURE_RETRY(), setuid(),
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                                   geteuid(), setsid(), chdir(),
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                                   dup2(), STDERR_FILENO,
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                                   STDOUT_FILENO, fork(), _exit(),
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                                   execv(), ssize_t, readlink(),
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                                   close(), read(), access(), X_OK */
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#include <signal.h>             /* kill(), SIGTERM, struct sigaction,
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                                   sigemptyset(), SIGINT, SIGHUP,
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                                   sigaddset(), SIG_IGN */
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#include <sys/wait.h>           /* waitpid(), WIFEXITED(),
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                                   WEXITSTATUS(), WIFSIGNALED(),
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                                   WTERMSIG() */
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#include <iso646.h>             /* not, and, or */
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#include <sysexits.h>           /* EX_OSERR, EX_USAGE,
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                                   EX_UNAVAILABLE */
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#include <stdint.h>             /* SIZE_MAX */
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#include <dirent.h>             /* struct dirent, scandir(),
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                                   alphasort() */
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#include <inttypes.h>           /* uintmax_t, strtoumax(), SCNuMAX,
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                                   PRIuMAX */
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#include <sys/stat.h>           /* struct stat, lstat(), S_ISLNK() */
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#include <fcntl.h>              /* open(), O_RDONLY */
 
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#include <errno.h>              /* TEMP_FAILURE_RETRY */
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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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#include <argp.h>
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sig_atomic_t interrupted_by_signal = 0;
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const char *argp_program_version = "plymouth " VERSION;
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    char **tmp;
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    int i = 0;
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    for (; argv[i] != NULL; i++){
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#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 26)
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      tmp = reallocarray(new_argv, ((size_t)i + 2),
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                         sizeof(const char *));
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#else
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      if(((size_t)i + 2) > (SIZE_MAX / sizeof(const char *))){
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        /* overflow */
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        tmp = NULL;
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        errno = ENOMEM;
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      } else {
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        tmp = realloc(new_argv, ((size_t)i + 2) * sizeof(const char *));
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      }
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#endif
 
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      tmp = realloc(new_argv, sizeof(const char *) * ((size_t)i + 2));
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      if(tmp == NULL){
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        error_plus(0, errno, "reallocarray");
 
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        error_plus(0, errno, "realloc");
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        free(new_argv);
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        _exit(EX_OSERR);
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      }