]> git.ipfire.org Git - thirdparty/systemd.git/blobdiff - src/ask-password/ask-password.c
Merge pull request #11827 from keszybz/pkgconfig-variables
[thirdparty/systemd.git] / src / ask-password / ask-password.c
index abfd545c791e0bc10bcbd698cbdc8812b2a8997e..4637c3281931a4261d6dabf19183d98adbbad607 100644 (file)
@@ -1,56 +1,55 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
+/* SPDX-License-Identifier: LGPL-2.1+ */
 
 #include <errno.h>
-#include <unistd.h>
 #include <getopt.h>
 #include <stddef.h>
+#include <unistd.h>
 
+#include "ask-password-api.h"
+#include "def.h"
 #include "log.h"
 #include "macro.h"
+#include "main-func.h"
+#include "pretty-print.h"
 #include "strv.h"
-#include "ask-password-api.h"
-#include "def.h"
 
 static const char *arg_icon = NULL;
 static const char *arg_id = NULL;
-static const char *arg_message = NULL;
-static bool arg_echo = false;
-static bool arg_use_tty = true;
+static const char *arg_keyname = NULL;
+static char *arg_message = NULL;
 static usec_t arg_timeout = DEFAULT_TIMEOUT_USEC;
-static bool arg_accept_cached = false;
 static bool arg_multiple = false;
+static bool arg_no_output = false;
+static AskPasswordFlags arg_flags = ASK_PASSWORD_PUSH_CACHE;
+
+STATIC_DESTRUCTOR_REGISTER(arg_message, freep);
+
+static int help(void) {
+        _cleanup_free_ char *link = NULL;
+        int r;
+
+        r = terminal_urlify_man("systemd-ask-password", "1", &link);
+        if (r < 0)
+                return log_oom();
 
-static void help(void) {
         printf("%s [OPTIONS...] MESSAGE\n\n"
                "Query the user for a system passphrase, via the TTY or an UI agent.\n\n"
-               "  -h --help          Show this help\n"
-               "     --icon=NAME     Icon name\n"
-               "     --timeout=SEC   Timeout in sec\n"
-               "     --echo          Do not mask input (useful for usernames)\n"
-               "     --no-tty        Ask question via agent even on TTY\n"
-               "     --accept-cached Accept cached passwords\n"
-               "     --multiple      List multiple passwords if available\n"
-               "     --id=ID         Query identifier (e.g. cryptsetup:/dev/sda5)\n"
-               , program_invocation_short_name);
+               "  -h --help           Show this help\n"
+               "     --icon=NAME      Icon name\n"
+               "     --id=ID          Query identifier (e.g. \"cryptsetup:/dev/sda5\")\n"
+               "     --keyname=NAME   Kernel key name for caching passwords (e.g. \"cryptsetup\")\n"
+               "     --timeout=SEC    Timeout in seconds\n"
+               "     --echo           Do not mask input (useful for usernames)\n"
+               "     --no-tty         Ask question via agent even on TTY\n"
+               "     --accept-cached  Accept cached passwords\n"
+               "     --multiple       List multiple passwords if available\n"
+               "     --no-output      Do not print password to standard output\n"
+               "\nSee the %s for details.\n"
+               , program_invocation_short_name
+               , link
+        );
+
+        return 0;
 }
 
 static int parse_argv(int argc, char *argv[]) {
@@ -62,11 +61,15 @@ static int parse_argv(int argc, char *argv[]) {
                 ARG_NO_TTY,
                 ARG_ACCEPT_CACHED,
                 ARG_MULTIPLE,
-                ARG_ID
+                ARG_ID,
+                ARG_KEYNAME,
+                ARG_NO_OUTPUT,
+                ARG_VERSION,
         };
 
         static const struct option options[] = {
                 { "help",          no_argument,       NULL, 'h'               },
+                { "version",       no_argument,       NULL, ARG_VERSION       },
                 { "icon",          required_argument, NULL, ARG_ICON          },
                 { "timeout",       required_argument, NULL, ARG_TIMEOUT       },
                 { "echo",          no_argument,       NULL, ARG_ECHO          },
@@ -74,6 +77,8 @@ static int parse_argv(int argc, char *argv[]) {
                 { "accept-cached", no_argument,       NULL, ARG_ACCEPT_CACHED },
                 { "multiple",      no_argument,       NULL, ARG_MULTIPLE      },
                 { "id",            required_argument, NULL, ARG_ID            },
+                { "keyname",       required_argument, NULL, ARG_KEYNAME       },
+                { "no-output",     no_argument,       NULL, ARG_NO_OUTPUT     },
                 {}
         };
 
@@ -87,30 +92,32 @@ static int parse_argv(int argc, char *argv[]) {
                 switch (c) {
 
                 case 'h':
-                        help();
-                        return 0;
+                        return help();
+
+                case ARG_VERSION:
+                        return version();
 
                 case ARG_ICON:
                         arg_icon = optarg;
                         break;
 
                 case ARG_TIMEOUT:
-                        if (parse_sec(optarg, &arg_timeout) < 0) {
-                                log_error("Failed to parse --timeout parameter %s", optarg);
-                                return -EINVAL;
-                        }
+                        if (parse_sec(optarg, &arg_timeout) < 0)
+                                return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+                                                       "Failed to parse --timeout parameter %s",
+                                                       optarg);
                         break;
 
                 case ARG_ECHO:
-                        arg_echo = true;
+                        arg_flags |= ASK_PASSWORD_ECHO;
                         break;
 
                 case ARG_NO_TTY:
-                        arg_use_tty = false;
+                        arg_flags |= ASK_PASSWORD_NO_TTY;
                         break;
 
                 case ARG_ACCEPT_CACHED:
-                        arg_accept_cached = true;
+                        arg_flags |= ASK_PASSWORD_ACCEPT_CACHED;
                         break;
 
                 case ARG_MULTIPLE:
@@ -121,6 +128,14 @@ static int parse_argv(int argc, char *argv[]) {
                         arg_id = optarg;
                         break;
 
+                case ARG_KEYNAME:
+                        arg_keyname = optarg;
+                        break;
+
+                case ARG_NO_OUTPUT:
+                        arg_no_output = true;
+                        break;
+
                 case '?':
                         return -EINVAL;
 
@@ -128,61 +143,46 @@ static int parse_argv(int argc, char *argv[]) {
                         assert_not_reached("Unhandled option");
                 }
 
-        if (optind != argc - 1) {
-                log_error("%s: required argument missing.", program_invocation_short_name);
-                return -EINVAL;
+        if (argc > optind) {
+                arg_message = strv_join(argv + optind, " ");
+                if (!arg_message)
+                        return log_oom();
         }
 
-        arg_message = argv[optind];
         return 1;
 }
 
-int main(int argc, char *argv[]) {
-        int r;
+static int run(int argc, char *argv[]) {
+        _cleanup_strv_free_erase_ char **l = NULL;
         usec_t timeout;
+        char **p;
+        int r;
 
         log_parse_environment();
         log_open();
 
         r = parse_argv(argc, argv);
         if (r <= 0)
-                goto finish;
+                return r;
 
         if (arg_timeout > 0)
                 timeout = now(CLOCK_MONOTONIC) + arg_timeout;
         else
                 timeout = 0;
 
-        if (arg_use_tty && isatty(STDIN_FILENO)) {
-                char *password = NULL;
-
-                r = ask_password_tty(arg_message, timeout, arg_echo, NULL,
-                                     &password);
-                if (r >= 0) {
-                        puts(password);
-                        free(password);
-                }
+        r = ask_password_auto(arg_message, arg_icon, arg_id, arg_keyname, timeout, arg_flags, &l);
+        if (r < 0)
+                return log_error_errno(r, "Failed to query password: %m");
 
-        } else {
-                char **l;
+        STRV_FOREACH(p, l) {
+                if (!arg_no_output)
+                        puts(*p);
 
-                r = ask_password_agent(arg_message, arg_icon, arg_id, timeout,
-                                       arg_echo, arg_accept_cached, &l);
-                if (r >= 0) {
-                        char **p;
-
-                        STRV_FOREACH(p, l) {
-                                puts(*p);
-
-                                if (!arg_multiple)
-                                        break;
-                        }
-
-                        strv_free(l);
-                }
+                if (!arg_multiple)
+                        break;
         }
 
-finish:
-
-        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+        return 0;
 }
+
+DEFINE_MAIN_FUNCTION(run);