diff options
Diffstat (limited to 'src/systemd-reply-password')
| l--------- | src/systemd-reply-password/GNUmakefile | 1 | ||||
| -rw-r--r-- | src/systemd-reply-password/Makefile | 33 | ||||
| -rw-r--r-- | src/systemd-reply-password/reply-password.c | 96 |
3 files changed, 130 insertions, 0 deletions
diff --git a/src/systemd-reply-password/GNUmakefile b/src/systemd-reply-password/GNUmakefile new file mode 120000 index 0000000000..54fdd42278 --- /dev/null +++ b/src/systemd-reply-password/GNUmakefile @@ -0,0 +1 @@ +../../GNUmakefile
\ No newline at end of file diff --git a/src/systemd-reply-password/Makefile b/src/systemd-reply-password/Makefile new file mode 100644 index 0000000000..18514df027 --- /dev/null +++ b/src/systemd-reply-password/Makefile @@ -0,0 +1,33 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# 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/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +rootlibexec_PROGRAMS += systemd-reply-password +systemd_reply_password_SOURCES = \ + src/reply-password/reply-password.c + +systemd_reply_password_LDADD = \ + libsystemd-shared.la + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/systemd-reply-password/reply-password.c b/src/systemd-reply-password/reply-password.c new file mode 100644 index 0000000000..febabfedf7 --- /dev/null +++ b/src/systemd-reply-password/reply-password.c @@ -0,0 +1,96 @@ +/*** + 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/>. +***/ + +#include <errno.h> +#include <stddef.h> +#include <string.h> +#include <sys/socket.h> +#include <sys/un.h> + +#include "systemd-basic/fd-util.h" +#include "systemd-basic/log.h" +#include "systemd-basic/macro.h" +#include "systemd-basic/socket-util.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/util.h" + +static int send_on_socket(int fd, const char *socket_name, const void *packet, size_t size) { + union sockaddr_union sa = { + .un.sun_family = AF_UNIX, + }; + + assert(fd >= 0); + assert(socket_name); + assert(packet); + + strncpy(sa.un.sun_path, socket_name, sizeof(sa.un.sun_path)); + + if (sendto(fd, packet, size, MSG_NOSIGNAL, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) + return log_error_errno(errno, "Failed to send: %m"); + + return 0; +} + +int main(int argc, char *argv[]) { + _cleanup_close_ int fd = -1; + char packet[LINE_MAX]; + size_t length; + int r; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + if (argc != 3) { + log_error("Wrong number of arguments."); + return EXIT_FAILURE; + } + + if (streq(argv[1], "1")) { + + packet[0] = '+'; + if (!fgets(packet+1, sizeof(packet)-1, stdin)) { + r = log_error_errno(errno, "Failed to read password: %m"); + goto finish; + } + + truncate_nl(packet+1); + length = 1 + strlen(packet+1) + 1; + } else if (streq(argv[1], "0")) { + packet[0] = '-'; + length = 1; + } else { + log_error("Invalid first argument %s", argv[1]); + r = -EINVAL; + goto finish; + } + + fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); + if (fd < 0) { + r = log_error_errno(errno, "socket() failed: %m"); + goto finish; + } + + r = send_on_socket(fd, argv[2], packet, length); + +finish: + memory_erase(packet, sizeof(packet)); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} |