systemd: update code from upstream

This is a direct dump from systemd git on 2016-11-12, git commit
1f8c78a1bab2e06a462894fa89d842ffc313832d.

======

SYSTEMD_DIR=../systemd
COMMIT=1f8c78a1bab2e06a462894fa89d842ffc313832d

(
  cd "$SYSTEMD_DIR"
  git checkout "$COMMIT"
  git reset --hard
  git clean -fdx
)

git ls-files :/src/systemd/src/ | xargs -d '\n' rm -f

nm_copy_sd() {
    mkdir -p "./src/systemd/$(dirname "$1")"
    cp "$SYSTEMD_DIR/$1" "./src/systemd/$1"
}

nm_copy_sd "src/basic/alloc-util.c"
nm_copy_sd "src/basic/alloc-util.h"
nm_copy_sd "src/basic/async.h"
nm_copy_sd "src/basic/escape.c"
nm_copy_sd "src/basic/escape.h"
nm_copy_sd "src/basic/ether-addr-util.c"
nm_copy_sd "src/basic/ether-addr-util.h"
nm_copy_sd "src/basic/extract-word.c"
nm_copy_sd "src/basic/extract-word.h"
nm_copy_sd "src/basic/fileio.c"
nm_copy_sd "src/basic/fileio.h"
nm_copy_sd "src/basic/fd-util.c"
nm_copy_sd "src/basic/fd-util.h"
nm_copy_sd "src/basic/fs-util.c"
nm_copy_sd "src/basic/fs-util.h"
nm_copy_sd "src/basic/hash-funcs.c"
nm_copy_sd "src/basic/hash-funcs.h"
nm_copy_sd "src/basic/hashmap.c"
nm_copy_sd "src/basic/hashmap.h"
nm_copy_sd "src/basic/hexdecoct.c"
nm_copy_sd "src/basic/hexdecoct.h"
nm_copy_sd "src/basic/hostname-util.c"
nm_copy_sd "src/basic/hostname-util.h"
nm_copy_sd "src/basic/in-addr-util.c"
nm_copy_sd "src/basic/in-addr-util.h"
nm_copy_sd "src/basic/io-util.c"
nm_copy_sd "src/basic/io-util.h"
nm_copy_sd "src/basic/list.h"
nm_copy_sd "src/basic/log.h"
nm_copy_sd "src/basic/macro.h"
nm_copy_sd "src/basic/mempool.h"
nm_copy_sd "src/basic/mempool.c"
nm_copy_sd "src/basic/parse-util.c"
nm_copy_sd "src/basic/parse-util.h"
nm_copy_sd "src/basic/path-util.c"
nm_copy_sd "src/basic/path-util.h"
nm_copy_sd "src/basic/prioq.h"
nm_copy_sd "src/basic/prioq.c"
nm_copy_sd "src/basic/random-util.c"
nm_copy_sd "src/basic/random-util.h"
nm_copy_sd "src/basic/refcnt.h"
nm_copy_sd "src/basic/set.h"
nm_copy_sd "src/basic/signal-util.h"
nm_copy_sd "src/basic/siphash24.c"
nm_copy_sd "src/basic/siphash24.h"
nm_copy_sd "src/basic/socket-util.c"
nm_copy_sd "src/basic/socket-util.h"
nm_copy_sd "src/basic/sparse-endian.h"
nm_copy_sd "src/basic/stdio-util.h"
nm_copy_sd "src/basic/string-table.c"
nm_copy_sd "src/basic/string-table.h"
nm_copy_sd "src/basic/string-util.c"
nm_copy_sd "src/basic/string-util.h"
nm_copy_sd "src/basic/strv.c"
nm_copy_sd "src/basic/strv.h"
nm_copy_sd "src/basic/time-util.c"
nm_copy_sd "src/basic/time-util.h"
nm_copy_sd "src/basic/umask-util.h"
nm_copy_sd "src/basic/unaligned.h"
nm_copy_sd "src/basic/utf8.c"
nm_copy_sd "src/basic/utf8.h"
nm_copy_sd "src/basic/util.c"
nm_copy_sd "src/basic/util.h"
nm_copy_sd "src/libsystemd-network/arp-util.c"
nm_copy_sd "src/libsystemd-network/arp-util.h"
nm_copy_sd "src/libsystemd-network/dhcp6-internal.h"
nm_copy_sd "src/libsystemd-network/dhcp6-lease-internal.h"
nm_copy_sd "src/libsystemd-network/dhcp6-network.c"
nm_copy_sd "src/libsystemd-network/dhcp6-option.c"
nm_copy_sd "src/libsystemd-network/dhcp6-protocol.h"
nm_copy_sd "src/libsystemd-network/dhcp-identifier.c"
nm_copy_sd "src/libsystemd-network/dhcp-identifier.h"
nm_copy_sd "src/libsystemd-network/dhcp-internal.h"
nm_copy_sd "src/libsystemd-network/dhcp-lease-internal.h"
nm_copy_sd "src/libsystemd-network/dhcp-network.c"
nm_copy_sd "src/libsystemd-network/dhcp-option.c"
nm_copy_sd "src/libsystemd-network/dhcp-packet.c"
nm_copy_sd "src/libsystemd-network/dhcp-protocol.h"
nm_copy_sd "src/libsystemd-network/lldp-internal.h"
nm_copy_sd "src/libsystemd-network/lldp-neighbor.c"
nm_copy_sd "src/libsystemd-network/lldp-neighbor.h"
nm_copy_sd "src/libsystemd-network/lldp-network.c"
nm_copy_sd "src/libsystemd-network/lldp-network.h"
nm_copy_sd "src/libsystemd-network/network-internal.c"
nm_copy_sd "src/libsystemd-network/network-internal.h"
nm_copy_sd "src/libsystemd-network/sd-dhcp6-client.c"
nm_copy_sd "src/libsystemd-network/sd-dhcp6-lease.c"
nm_copy_sd "src/libsystemd-network/sd-dhcp-client.c"
nm_copy_sd "src/libsystemd-network/sd-dhcp-lease.c"
nm_copy_sd "src/libsystemd-network/sd-ipv4ll.c"
nm_copy_sd "src/libsystemd-network/sd-ipv4acd.c"
nm_copy_sd "src/libsystemd-network/sd-lldp.c"
nm_copy_sd "src/libsystemd/sd-event/sd-event.c"
nm_copy_sd "src/libsystemd/sd-id128/id128-util.c"
nm_copy_sd "src/libsystemd/sd-id128/id128-util.h"
nm_copy_sd "src/libsystemd/sd-id128/sd-id128.c"
nm_copy_sd "src/shared/dns-domain.c"
nm_copy_sd "src/shared/dns-domain.h"
nm_copy_sd "src/systemd/_sd-common.h"
nm_copy_sd "src/systemd/sd-dhcp6-client.h"
nm_copy_sd "src/systemd/sd-dhcp6-lease.h"
nm_copy_sd "src/systemd/sd-dhcp-client.h"
nm_copy_sd "src/systemd/sd-dhcp-lease.h"
nm_copy_sd "src/systemd/sd-event.h"
nm_copy_sd "src/systemd/sd-ndisc.h"
nm_copy_sd "src/systemd/sd-id128.h"
nm_copy_sd "src/systemd/sd-ipv4acd.h"
nm_copy_sd "src/systemd/sd-ipv4ll.h"
nm_copy_sd "src/systemd/sd-lldp.h"

17 files changed, 71 insertions, 44 deletions

diff --git a/src/systemd/src/basic/extract-word.c b/src/systemd/src/basic/extract-word.c
index d6c1228463..dbe64a9a58 100644
--- a/src/systemd/src/basic/extract-word.c
+++ b/src/systemd/src/basic/extract-word.c
@@ -48,7 +48,7 @@ int extract_first_word(const char **p, char **ret, const char *separators, Extra
 
         /* Bail early if called after last value or with no input */
         if (!*p)
-                goto finish_force_terminate;
+                goto finish;
         c = **p;
 
         if (!separators)
diff --git a/src/systemd/src/basic/fileio.c b/src/systemd/src/basic/fileio.c
index 1cfb7a98f5..1615456659 100644
--- a/src/systemd/src/basic/fileio.c
+++ b/src/systemd/src/basic/fileio.c
@@ -676,7 +676,7 @@ static int load_env_file_push(
                 return -EINVAL;
         }
 
-        p = strjoin(key, "=", strempty(value), NULL);
+        p = strjoin(key, "=", strempty(value));
         if (!p)
                 return -ENOMEM;
 
@@ -963,9 +963,9 @@ static int search_and_fopen_internal(const char *path, const char *mode, const c
                 FILE *f;
 
                 if (root)
-                        p = strjoin(root, *i, "/", path, NULL);
+                        p = strjoin(root, *i, "/", path);
                 else
-                        p = strjoin(*i, "/", path, NULL);
+                        p = strjoin(*i, "/", path);
                 if (!p)
                         return -ENOMEM;
 
diff --git a/src/systemd/src/basic/fs-util.c b/src/systemd/src/basic/fs-util.c
index 48952a1c26..d2c322a0de 100644
--- a/src/systemd/src/basic/fs-util.c
+++ b/src/systemd/src/basic/fs-util.c
@@ -742,7 +742,7 @@ int chase_symlinks(const char *path, const char *_root, char **ret) {
                                 /* A relative destination. If so, this is what we'll prefix what's left to do with what
                                  * we just read, and start the loop again, but remain in the current directory. */
 
-                                joined = strjoin("/", destination, todo, NULL);
+                                joined = strjoin("/", destination, todo);
                                 if (!joined)
                                         return -ENOMEM;
 
diff --git a/src/systemd/src/basic/path-util.c b/src/systemd/src/basic/path-util.c
index 0f5b20cf05..5cdac50c68 100644
--- a/src/systemd/src/basic/path-util.c
+++ b/src/systemd/src/basic/path-util.c
@@ -83,7 +83,7 @@ char *path_make_absolute(const char *p, const char *prefix) {
         if (path_is_absolute(p) || !prefix)
                 return strdup(p);
 
-        return strjoin(prefix, "/", p, NULL);
+        return strjoin(prefix, "/", p);
 }
 
 int path_make_absolute_cwd(const char *p, char **ret) {
@@ -104,7 +104,7 @@ int path_make_absolute_cwd(const char *p, char **ret) {
                 if (!cwd)
                         return negative_errno();
 
-                c = strjoin(cwd, "/", p, NULL);
+                c = strjoin(cwd, "/", p);
         }
         if (!c)
                 return -ENOMEM;
@@ -354,6 +354,16 @@ char* path_startswith(const char *path, const char *prefix) {
         assert(path);
         assert(prefix);
 
+        /* Returns a pointer to the start of the first component after the parts matched by
+         * the prefix, iff
+         * - both paths are absolute or both paths are relative,
+         * and
+         * - each component in prefix in turn matches a component in path at the same position.
+         * An empty string will be returned when the prefix and path are equivalent.
+         *
+         * Returns NULL otherwise.
+         */
+
         if ((path[0] == '/') != (prefix[0] == '/'))
                 return NULL;
 
@@ -444,13 +454,11 @@ char* path_join(const char *root, const char *path, const char *rest) {
                 return strjoin(root, endswith(root, "/") ? "" : "/",
                                path[0] == '/' ? path+1 : path,
                                rest ? (endswith(path, "/") ? "" : "/") : NULL,
-                               rest && rest[0] == '/' ? rest+1 : rest,
-                               NULL);
+                               rest && rest[0] == '/' ? rest+1 : rest);
         else
                 return strjoin(path,
                                rest ? (endswith(path, "/") ? "" : "/") : NULL,
-                               rest && rest[0] == '/' ? rest+1 : rest,
-                               NULL);
+                               rest && rest[0] == '/' ? rest+1 : rest);
 }
 
 int find_binary(const char *name, char **ret) {
@@ -494,7 +502,7 @@ int find_binary(const char *name, char **ret) {
                 if (!path_is_absolute(element))
                         continue;
 
-                j = strjoin(element, "/", name, NULL);
+                j = strjoin(element, "/", name);
                 if (!j)
                         return -ENOMEM;
 
diff --git a/src/systemd/src/basic/socket-util.c b/src/systemd/src/basic/socket-util.c
index 1662c04705..4ebf106109 100644
--- a/src/systemd/src/basic/socket-util.c
+++ b/src/systemd/src/basic/socket-util.c
@@ -34,7 +34,7 @@
 #include "alloc-util.h"
 #include "fd-util.h"
 #include "fileio.h"
-#include "formats-util.h"
+#include "format-util.h"
 #include "log.h"
 #include "macro.h"
 #include "missing.h"
diff --git a/src/systemd/src/basic/string-util.c b/src/systemd/src/basic/string-util.c
index 6b06e643c9..2ba3604ba0 100644
--- a/src/systemd/src/basic/string-util.c
+++ b/src/systemd/src/basic/string-util.c
@@ -218,7 +218,7 @@ char *strappend(const char *s, const char *suffix) {
         return strnappend(s, suffix, suffix ? strlen(suffix) : 0);
 }
 
-char *strjoin(const char *x, ...) {
+char *strjoin_real(const char *x, ...) {
         va_list ap;
         size_t l;
         char *r, *p;
diff --git a/src/systemd/src/basic/string-util.h b/src/systemd/src/basic/string-util.h
index d029d538bd..e99f7964be 100644
--- a/src/systemd/src/basic/string-util.h
+++ b/src/systemd/src/basic/string-util.h
@@ -107,16 +107,14 @@ const char* split(const char **state, size_t *l, const char *separator, bool quo
 #define FOREACH_WORD_SEPARATOR(word, length, s, separator, state)       \
         _FOREACH_WORD(word, length, s, separator, false, state)
 
-#define FOREACH_WORD_QUOTED(word, length, s, state)                     \
-        _FOREACH_WORD(word, length, s, WHITESPACE, true, state)
-
 #define _FOREACH_WORD(word, length, s, separator, quoted, state)        \
         for ((state) = (s), (word) = split(&(state), &(length), (separator), (quoted)); (word); (word) = split(&(state), &(length), (separator), (quoted)))
 
 char *strappend(const char *s, const char *suffix);
 char *strnappend(const char *s, const char *suffix, size_t length);
 
-char *strjoin(const char *x, ...) _sentinel_;
+char *strjoin_real(const char *x, ...) _sentinel_;
+#define strjoin(a, ...) strjoin_real((a), __VA_ARGS__, NULL)
 
 #define strjoina(a, ...)                                                \
         ({                                                              \
diff --git a/src/systemd/src/basic/time-util.c b/src/systemd/src/basic/time-util.c
index fedff1362c..cbdfd55ada 100644
--- a/src/systemd/src/basic/time-util.c
+++ b/src/systemd/src/basic/time-util.c
@@ -309,7 +309,7 @@ static char *format_timestamp_internal(
                 if (n + 8 > l)
                         return NULL; /* Microseconds part doesn't fit. */
 
-                sprintf(buf + n, ".%06llu", (unsigned long long) (t % USEC_PER_SEC));
+                sprintf(buf + n, ".%06"PRI_USEC, t % USEC_PER_SEC);
         }
 
         /* Append the timezone */
@@ -499,11 +499,11 @@ char *format_timespan(char *buf, size_t l, usec_t t, usec_t accuracy) {
 
                         if (j > 0) {
                                 k = snprintf(p, l,
-                                             "%s"USEC_FMT".%0*llu%s",
+                                             "%s"USEC_FMT".%0*"PRI_USEC"%s",
                                              p > buf ? " " : "",
                                              a,
                                              j,
-                                             (unsigned long long) b,
+                                             b,
                                              table[i].suffix);
 
                                 t = 0;
@@ -1320,7 +1320,7 @@ unsigned long usec_to_jiffies(usec_t u) {
                 r = sysconf(_SC_CLK_TCK);
 
                 assert(r > 0);
-                hz = (unsigned long) r;
+                hz = r;
         }
 
         return DIV_ROUND_UP(u , USEC_PER_SEC / hz);
diff --git a/src/systemd/src/basic/time-util.h b/src/systemd/src/basic/time-util.h
index 558b0b5b7f..f67a4474ed 100644
--- a/src/systemd/src/basic/time-util.h
+++ b/src/systemd/src/basic/time-util.h
@@ -29,8 +29,10 @@
 typedef uint64_t usec_t;
 typedef uint64_t nsec_t;
 
-#define NSEC_FMT "%" PRIu64
-#define USEC_FMT "%" PRIu64
+#define PRI_NSEC PRIu64
+#define PRI_USEC PRIu64
+#define NSEC_FMT "%" PRI_NSEC
+#define USEC_FMT "%" PRI_USEC
 
 #include "macro.h"
 
diff --git a/src/systemd/src/basic/util.c b/src/systemd/src/basic/util.c
index ec7939dc83..c1b5ca1ef7 100644
--- a/src/systemd/src/basic/util.c
+++ b/src/systemd/src/basic/util.c
@@ -41,7 +41,7 @@
 #include "dirent-util.h"
 #include "fd-util.h"
 #include "fileio.h"
-#include "formats-util.h"
+#include "format-util.h"
 #include "hashmap.h"
 #include "hostname-util.h"
 #include "log.h"
@@ -131,7 +131,7 @@ static int do_execute(char **directories, usec_t timeout, char *argv[]) {
                         if (r < 0)
                                 return log_oom();
 
-                        path = strjoin(*directory, "/", de->d_name, NULL);
+                        path = strjoin(*directory, "/", de->d_name);
                         if (!path)
                                 return log_oom();
 
diff --git a/src/systemd/src/basic/util.h b/src/systemd/src/basic/util.h
index bb2fc318ef..c3802a811c 100644
--- a/src/systemd/src/basic/util.h
+++ b/src/systemd/src/basic/util.h
@@ -41,7 +41,7 @@
 #include <time.h>
 #include <unistd.h>
 
-#include "formats-util.h"
+#include "format-util.h"
 #include "macro.h"
 #include "missing.h"
 #include "time-util.h"
diff --git a/src/systemd/src/libsystemd-network/dhcp-internal.h b/src/systemd/src/libsystemd-network/dhcp-internal.h
index 99f690897d..5aa8aca426 100644
--- a/src/systemd/src/libsystemd-network/dhcp-internal.h
+++ b/src/systemd/src/libsystemd-network/dhcp-internal.h
@@ -32,7 +32,8 @@
 
 int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link,
                                  uint32_t xid, const uint8_t *mac_addr,
-                                 size_t mac_addr_len, uint16_t arp_type);
+                                 size_t mac_addr_len, uint16_t arp_type,
+                                 uint16_t port);
 int dhcp_network_bind_udp_socket(be32_t address, uint16_t port);
 int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link,
                                  const void *packet, size_t len);
@@ -57,7 +58,7 @@ void dhcp_packet_append_ip_headers(DHCPPacket *packet, be32_t source_addr,
                                    uint16_t source, be32_t destination_addr,
                                    uint16_t destination, uint16_t len);
 
-int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum);
+int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum, uint16_t port);
 
 /* If we are invoking callbacks of a dhcp-client, ensure unreffing the
  * client from the callback doesn't destroy the object we are working
diff --git a/src/systemd/src/libsystemd-network/dhcp-network.c b/src/systemd/src/libsystemd-network/dhcp-network.c
index a9f5a0a5de..3c85bb0b54 100644
--- a/src/systemd/src/libsystemd-network/dhcp-network.c
+++ b/src/systemd/src/libsystemd-network/dhcp-network.c
@@ -36,7 +36,8 @@ static int _bind_raw_socket(int ifindex, union sockaddr_union *link,
                             size_t mac_addr_len,
                             const uint8_t *bcast_addr,
                             const struct ether_addr *eth_mac,
-                            uint16_t arp_type, uint8_t dhcp_hlen) {
+                            uint16_t arp_type, uint8_t dhcp_hlen,
+                            uint16_t port) {
         struct sock_filter filter[] = {
                 BPF_STMT(BPF_LD + BPF_W + BPF_LEN, 0),                                 /* A <- packet length */
                 BPF_JUMP(BPF_JMP + BPF_JGE + BPF_K, sizeof(DHCPPacket), 1, 0),         /* packet >= DHCPPacket ? */
@@ -53,7 +54,7 @@ static int _bind_raw_socket(int ifindex, union sockaddr_union *link,
                 BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0, 1, 0),                          /* A == 0 ? */
                 BPF_STMT(BPF_RET + BPF_K, 0),                                          /* ignore */
                 BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(DHCPPacket, udp.dest)),    /* A <- UDP destination port */
-                BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, DHCP_PORT_CLIENT, 1, 0),           /* UDP destination port == DHCP client port ? */
+                BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, port, 1, 0),                       /* UDP destination port == DHCP client port ? */
                 BPF_STMT(BPF_RET + BPF_K, 0),                                          /* ignore */
                 BPF_STMT(BPF_LD + BPF_B + BPF_ABS, offsetof(DHCPPacket, dhcp.op)),     /* A <- DHCP op */
                 BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, BOOTREPLY, 1, 0),                  /* op == BOOTREPLY ? */
@@ -125,7 +126,8 @@ static int _bind_raw_socket(int ifindex, union sockaddr_union *link,
 
 int dhcp_network_bind_raw_socket(int ifindex, union sockaddr_union *link,
                                  uint32_t xid, const uint8_t *mac_addr,
-                                 size_t mac_addr_len, uint16_t arp_type) {
+                                 size_t mac_addr_len, uint16_t arp_type,
+                                 uint16_t port) {
         static const uint8_t eth_bcast[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
         /* Default broadcast address for IPoIB */
         static const uint8_t ib_bcast[] = {
@@ -151,7 +153,7 @@ int dhcp_network_bind_raw_socket(int ifindex, union sockaddr_union *link,
                 return -EINVAL;
 
         return _bind_raw_socket(ifindex, link, xid, mac_addr, mac_addr_len,
-                                bcast_addr, &eth_mac, arp_type, dhcp_hlen);
+                                bcast_addr, &eth_mac, arp_type, dhcp_hlen, port);
 }
 
 int dhcp_network_bind_udp_socket(be32_t address, uint16_t port) {
diff --git a/src/systemd/src/libsystemd-network/dhcp-packet.c b/src/systemd/src/libsystemd-network/dhcp-packet.c
index 8be774061d..40442b3636 100644
--- a/src/systemd/src/libsystemd-network/dhcp-packet.c
+++ b/src/systemd/src/libsystemd-network/dhcp-packet.c
@@ -114,7 +114,7 @@ void dhcp_packet_append_ip_headers(DHCPPacket *packet, be32_t source_addr,
         packet->ip.check = dhcp_packet_checksum((uint8_t*)&packet->ip, DHCP_IP_SIZE);
 }
 
-int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum) {
+int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum, uint16_t port) {
         size_t hdrlen;
 
         assert(packet);
@@ -160,10 +160,10 @@ int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum) {
                 return -EINVAL;
         }
 
-        if (be16toh(packet->udp.dest) != DHCP_PORT_CLIENT) {
+        if (be16toh(packet->udp.dest) != port) {
                 log_debug("ignoring packet: to port %u, which "
                           "is not the DHCP client port (%u)",
-                          be16toh(packet->udp.dest), DHCP_PORT_CLIENT);
+                          be16toh(packet->udp.dest), port);
                 return -EINVAL;
         }
 
diff --git a/src/systemd/src/libsystemd-network/sd-dhcp-client.c b/src/systemd/src/libsystemd-network/sd-dhcp-client.c
index 5ccb23922c..6475da2c2a 100644
--- a/src/systemd/src/libsystemd-network/sd-dhcp-client.c
+++ b/src/systemd/src/libsystemd-network/sd-dhcp-client.c
@@ -55,6 +55,7 @@ struct sd_dhcp_client {
         sd_event_source *timeout_resend;
         int ifindex;
         int fd;
+        uint16_t port;
         union sockaddr_union link;
         sd_event_source *receive_message;
         bool request_broadcast;
@@ -426,6 +427,17 @@ int sd_dhcp_client_set_vendor_class_identifier(
         return 0;
 }
 
+int sd_dhcp_client_set_client_port(
+                sd_dhcp_client *client,
+                uint16_t port) {
+
+        assert_return(client, -EINVAL);
+
+        client->port = port;
+
+        return 0;
+}
+
 int sd_dhcp_client_set_mtu(sd_dhcp_client *client, uint32_t mtu) {
         assert_return(client, -EINVAL);
         assert_return(mtu >= DHCP_DEFAULT_MIN_SIZE, -ERANGE);
@@ -668,7 +680,7 @@ static int dhcp_client_send_raw(
                 DHCPPacket *packet,
                 size_t len) {
 
-        dhcp_packet_append_ip_headers(packet, INADDR_ANY, DHCP_PORT_CLIENT,
+        dhcp_packet_append_ip_headers(packet, INADDR_ANY, client->port,
                                       INADDR_BROADCAST, DHCP_PORT_SERVER, len);
 
         return dhcp_network_send_raw_socket(client->fd, &client->link,
@@ -1120,7 +1132,7 @@ static int client_start_delayed(sd_dhcp_client *client) {
 
         r = dhcp_network_bind_raw_socket(client->ifindex, &client->link,
                                          client->xid, client->mac_addr,
-                                         client->mac_addr_len, client->arp_type);
+                                         client->mac_addr_len, client->arp_type, client->port);
         if (r < 0) {
                 client_stop(client, r);
                 return r;
@@ -1170,7 +1182,8 @@ static int client_timeout_t2(sd_event_source *s, uint64_t usec, void *userdata)
 
         r = dhcp_network_bind_raw_socket(client->ifindex, &client->link,
                                          client->xid, client->mac_addr,
-                                         client->mac_addr_len, client->arp_type);
+                                         client->mac_addr_len, client->arp_type,
+                                         client->port);
         if (r < 0) {
                 client_stop(client, r);
                 return 0;
@@ -1555,8 +1568,7 @@ static int client_handle_message(sd_dhcp_client *client, DHCPMessage *message, i
                                 goto error;
                         }
 
-                        r = dhcp_network_bind_udp_socket(client->lease->address,
-                                                         DHCP_PORT_CLIENT);
+                        r = dhcp_network_bind_udp_socket(client->lease->address, client->port);
                         if (r < 0) {
                                 log_dhcp_client(client, "could not bind UDP socket");
                                 goto error;
@@ -1766,7 +1778,7 @@ static int client_receive_message_raw(
                 }
         }
 
-        r = dhcp_packet_verify_headers(packet, len, checksum);
+        r = dhcp_packet_verify_headers(packet, len, checksum, client->port);
         if (r < 0)
                 return 0;
 
@@ -1891,6 +1903,7 @@ int sd_dhcp_client_new(sd_dhcp_client **ret) {
         client->fd = -1;
         client->attempt = 1;
         client->mtu = DHCP_DEFAULT_MIN_SIZE;
+        client->port = DHCP_PORT_CLIENT;
 
         client->req_opts_size = ELEMENTSOF(default_req_opts);
         client->req_opts = memdup(default_req_opts, client->req_opts_size);
diff --git a/src/systemd/src/shared/dns-domain.c b/src/systemd/src/shared/dns-domain.c
index 892f0aadf5..f9a6fd5f03 100644
--- a/src/systemd/src/shared/dns-domain.c
+++ b/src/systemd/src/shared/dns-domain.c
@@ -1076,7 +1076,7 @@ int dns_service_split(const char *joined, char **_name, char **_type, char **_do
                                 if (!name)
                                         return -ENOMEM;
 
-                                type = strjoin(b, ".", c, NULL);
+                                type = strjoin(b, ".", c);
                                 if (!type)
                                         return -ENOMEM;
 
@@ -1090,7 +1090,7 @@ int dns_service_split(const char *joined, char **_name, char **_type, char **_do
 
                         name = NULL;
 
-                        type = strjoin(a, ".", b, NULL);
+                        type = strjoin(a, ".", b);
                         if (!type)
                                 return -ENOMEM;
 
diff --git a/src/systemd/src/systemd/sd-dhcp-client.h b/src/systemd/src/systemd/sd-dhcp-client.h
index 9a90c2ed42..ffe7f836de 100644
--- a/src/systemd/src/systemd/sd-dhcp-client.h
+++ b/src/systemd/src/systemd/sd-dhcp-client.h
@@ -126,6 +126,9 @@ int sd_dhcp_client_get_client_id(
 int sd_dhcp_client_set_mtu(
                 sd_dhcp_client *client,
                 uint32_t mtu);
+int sd_dhcp_client_set_client_port(
+                sd_dhcp_client *client,
+                uint16_t port);
 int sd_dhcp_client_set_hostname(
                 sd_dhcp_client *client,
                 const char *hostname);