Isolation of udev code from remaining systemd

This commit is a first attempt to isolate the udev code from the
remaining code base.  It intentionally does not modify any files
but purely delete files which, on a first examination, appear to
not be needed.  This is a sweeping commit which may easily have
missed needed code.  Files can be retrieved by doing a checkout
from the previous commit:

 git checkout 2944f347d0 -- <filename>

5 files changed, 0 insertions, 262 deletions

diff --git a/src/libsystemd-id128/.gitignore b/src/libsystemd-id128/.gitignore
deleted file mode 100644
index 144adf9bea..0000000000
--- a/src/libsystemd-id128/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/libsystemd-id128.pc
diff --git a/src/libsystemd-id128/Makefile b/src/libsystemd-id128/Makefile
deleted file mode 120000
index d0b0e8e008..0000000000
--- a/src/libsystemd-id128/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile
\ No newline at end of file
diff --git a/src/libsystemd-id128/libsystemd-id128.pc.in b/src/libsystemd-id128/libsystemd-id128.pc.in
deleted file mode 100644
index bb65ffde33..0000000000
--- a/src/libsystemd-id128/libsystemd-id128.pc.in
+++ /dev/null
@@ -1,18 +0,0 @@
-#  This file is part of systemd.
-#
-#  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.
-
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@
-
-Name: systemd
-Description: systemd 128 Bit ID Utility Library
-URL: @PACKAGE_URL@
-Version: @PACKAGE_VERSION@
-Libs: -L${libdir} -lsystemd-id128
-Cflags: -I${includedir}
diff --git a/src/libsystemd-id128/libsystemd-id128.sym b/src/libsystemd-id128/libsystemd-id128.sym
deleted file mode 100644
index 604c0026c6..0000000000
--- a/src/libsystemd-id128/libsystemd-id128.sym
+++ /dev/null
@@ -1,21 +0,0 @@
-/***
-  This file is part of systemd.
-
-  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.
-***/
-
-/* Original symbols from systemd v38 */
-
-LIBSYSTEMD_ID128_38 {
-global:
-        sd_id128_to_string;
-        sd_id128_from_string;
-        sd_id128_randomize;
-        sd_id128_get_machine;
-        sd_id128_get_boot;
-local:
-        *;
-};
diff --git a/src/libsystemd-id128/sd-id128.c b/src/libsystemd-id128/sd-id128.c
deleted file mode 100644
index 4286ae7d14..0000000000
--- a/src/libsystemd-id128/sd-id128.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2011 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 <fcntl.h>
-#include <unistd.h>
-
-#include "sd-id128.h"
-
-#include "util.h"
-#include "macro.h"
-
-_public_ char *sd_id128_to_string(sd_id128_t id, char s[33]) {
-        unsigned n;
-
-        if (!s)
-                return NULL;
-
-        for (n = 0; n < 16; n++) {
-                s[n*2] = hexchar(id.bytes[n] >> 4);
-                s[n*2+1] = hexchar(id.bytes[n] & 0xF);
-        }
-
-        s[32] = 0;
-
-        return s;
-}
-
-_public_ int sd_id128_from_string(const char s[33], sd_id128_t *ret) {
-        unsigned n;
-        sd_id128_t t;
-
-        if (!s)
-                return -EINVAL;
-        if (!ret)
-                return -EINVAL;
-
-        for (n = 0; n < 16; n++) {
-                int a, b;
-
-                a = unhexchar(s[n*2]);
-                if (a < 0)
-                        return -EINVAL;
-
-                b = unhexchar(s[n*2+1]);
-                if (b < 0)
-                        return -EINVAL;
-
-                t.bytes[n] = (a << 4) | b;
-        }
-
-        if (s[32] != 0)
-                return -EINVAL;
-
-        *ret = t;
-        return 0;
-}
-
-static sd_id128_t make_v4_uuid(sd_id128_t id) {
-        /* Stolen from generate_random_uuid() of drivers/char/random.c
-         * in the kernel sources */
-
-        /* Set UUID version to 4 --- truly random generation */
-        id.bytes[6] = (id.bytes[6] & 0x0F) | 0x40;
-
-        /* Set the UUID variant to DCE */
-        id.bytes[8] = (id.bytes[8] & 0x3F) | 0x80;
-
-        return id;
-}
-
-_public_ int sd_id128_get_machine(sd_id128_t *ret) {
-        static __thread sd_id128_t saved_machine_id;
-        static __thread bool saved_machine_id_valid = false;
-        int fd;
-        char buf[32];
-        ssize_t k;
-        unsigned j;
-        sd_id128_t t;
-
-        if (!ret)
-                return -EINVAL;
-
-        if (saved_machine_id_valid) {
-                *ret = saved_machine_id;
-                return 0;
-        }
-
-        fd = open("/etc/machine-id", O_RDONLY|O_CLOEXEC|O_NOCTTY);
-        if (fd < 0)
-                return -errno;
-
-        k = loop_read(fd, buf, 32, false);
-        close_nointr_nofail(fd);
-
-        if (k < 0)
-                return (int) k;
-
-        if (k < 32)
-                return -EIO;
-
-        for (j = 0; j < 16; j++) {
-                int a, b;
-
-                a = unhexchar(buf[j*2]);
-                b = unhexchar(buf[j*2+1]);
-
-                if (a < 0 || b < 0)
-                        return -EIO;
-
-                t.bytes[j] = a << 4 | b;
-        }
-
-        saved_machine_id = t;
-        saved_machine_id_valid = true;
-
-        *ret = t;
-        return 0;
-}
-
-_public_ int sd_id128_get_boot(sd_id128_t *ret) {
-        static __thread sd_id128_t saved_boot_id;
-        static __thread bool saved_boot_id_valid = false;
-        int fd;
-        char buf[36];
-        ssize_t k;
-        unsigned j;
-        sd_id128_t t;
-        char *p;
-
-        if (!ret)
-                return -EINVAL;
-
-        if (saved_boot_id_valid) {
-                *ret = saved_boot_id;
-                return 0;
-        }
-
-        fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY);
-        if (fd < 0)
-                return -errno;
-
-        k = loop_read(fd, buf, 36, false);
-        close_nointr_nofail(fd);
-
-        if (k < 0)
-                return (int) k;
-
-        if (k < 36)
-                return -EIO;
-
-        for (j = 0, p = buf; j < 16; j++) {
-                int a, b;
-
-                if (*p == '-')
-                        p++;
-
-                a = unhexchar(p[0]);
-                b = unhexchar(p[1]);
-
-                if (a < 0 || b < 0)
-                        return -EIO;
-
-                t.bytes[j] = a << 4 | b;
-
-                p += 2;
-        }
-
-        saved_boot_id = t;
-        saved_boot_id_valid = true;
-
-        *ret = t;
-        return 0;
-}
-
-_public_ int sd_id128_randomize(sd_id128_t *ret) {
-        int fd;
-        ssize_t k;
-        sd_id128_t t;
-
-        if (!ret)
-                return -EINVAL;
-
-        fd = open("/dev/urandom", O_RDONLY|O_CLOEXEC|O_NOCTTY);
-        if (fd < 0)
-                return -errno;
-
-        k = loop_read(fd, &t, 16, false);
-        close_nointr_nofail(fd);
-
-        if (k < 0)
-                return (int) k;
-
-        if (k < 16)
-                return -EIO;
-
-        /* Turn this into a valid v4 UUID, to be nice. Note that we
-         * only guarantee this for newly generated UUIDs, not for
-         * pre-existing ones.*/
-
-        *ret = make_v4_uuid(t);
-        return 0;
-}