Imported Upstream version 222

10 files changed, 48 insertions, 7 deletions

diff --git a/src/basic/.gitignore b/src/basic/.gitignore
new file mode 100644
index 0000000000..e22411e484
--- /dev/null
+++ b/src/basic/.gitignore
@@ -0,0 +1,16 @@
+/cap-from-name.gperf
+/cap-from-name.h
+/cap-list.txt
+/cap-to-name.h
+/errno-from-name.gperf
+/errno-from-name.h
+/errno-list.txt
+/errno-to-name.h
+/af-from-name.gperf
+/af-from-name.h
+/af-list.txt
+/af-to-name.h
+/arphrd-from-name.gperf
+/arphrd-from-name.h
+/arphrd-list.txt
+/arphrd-to-name.h
diff --git a/src/basic/Makefile b/src/basic/Makefile
new file mode 120000
index 0000000000..d0b0e8e008
--- /dev/null
+++ b/src/basic/Makefile
@@ -0,0 +1 @@
+../Makefile
\ No newline at end of file
diff --git a/src/basic/fileio.c b/src/basic/fileio.c
index ff6b1a7ed7..00fb6f8b5c 100644
--- a/src/basic/fileio.c
+++ b/src/basic/fileio.c
@@ -134,6 +134,17 @@ int read_one_line_file(const char *fn, char **line) {
         return 0;
 }
 
+int verify_one_line_file(const char *fn, const char *line) {
+        _cleanup_free_ char *value = NULL;
+        int r;
+
+        r = read_one_line_file(fn, &value);
+        if (r < 0)
+                return r;
+
+        return streq(value, line);
+}
+
 int read_full_stream(FILE *f, char **contents, size_t *size) {
         size_t n, l;
         _cleanup_free_ char *buf = NULL;
diff --git a/src/basic/fileio.h b/src/basic/fileio.h
index 5ae51c1e28..91d4a0d2d5 100644
--- a/src/basic/fileio.h
+++ b/src/basic/fileio.h
@@ -34,6 +34,8 @@ int read_one_line_file(const char *fn, char **line);
 int read_full_file(const char *fn, char **contents, size_t *size);
 int read_full_stream(FILE *f, char **contents, size_t *size);
 
+int verify_one_line_file(const char *fn, const char *line);
+
 int parse_env_file(const char *fname, const char *separator, ...) _sentinel_;
 int load_env_file(FILE *f, const char *fname, const char *separator, char ***l);
 int load_env_file_pairs(FILE *f, const char *fname, const char *separator, char ***l);
diff --git a/src/basic/linux/Makefile b/src/basic/linux/Makefile
new file mode 120000
index 0000000000..d0b0e8e008
--- /dev/null
+++ b/src/basic/linux/Makefile
@@ -0,0 +1 @@
+../Makefile
\ No newline at end of file
diff --git a/src/basic/path-util.c b/src/basic/path-util.c
index 537705446a..8f49d65266 100644
--- a/src/basic/path-util.c
+++ b/src/basic/path-util.c
@@ -528,7 +528,7 @@ int fd_is_mount_point(int fd, const char *filename, int flags) {
          *
          * If that didn't work we will try to read the mount id from
          * /proc/self/fdinfo/<fd>. This is almost as good as
-         * name_to_handle_at(), however, does not return the the
+         * name_to_handle_at(), however, does not return the
          * opaque file handle. The opaque file handle is pretty useful
          * to detect the root directory, which we should always
          * consider a mount point. Hence we use this only as
diff --git a/src/basic/process-util.c b/src/basic/process-util.c
index cfc876567d..2c05f2fee4 100644
--- a/src/basic/process-util.c
+++ b/src/basic/process-util.c
@@ -329,6 +329,9 @@ int get_process_environ(pid_t pid, char **env) {
                         sz += cescape_char(c, outcome + sz);
         }
 
+        if (sz == 0)
+                return -ENOENT;
+
         outcome[sz] = '\0';
         *env = outcome;
         outcome = NULL;
diff --git a/src/basic/socket-label.c b/src/basic/socket-label.c
index cbe3ff216e..144e6fd86e 100644
--- a/src/basic/socket-label.c
+++ b/src/basic/socket-label.c
@@ -38,6 +38,7 @@ int socket_address_listen(
                 int backlog,
                 SocketAddressBindIPv6Only only,
                 const char *bind_to_device,
+                bool reuse_port,
                 bool free_bind,
                 bool transparent,
                 mode_t directory_mode,
@@ -83,6 +84,12 @@ int socket_address_listen(
                         if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, bind_to_device, strlen(bind_to_device)+1) < 0)
                                 return -errno;
 
+                if (reuse_port) {
+                        one = 1;
+                        if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one)) < 0)
+                                log_warning_errno(errno, "SO_REUSEPORT failed: %m");
+                }
+
                 if (free_bind) {
                         one = 1;
                         if (setsockopt(fd, IPPROTO_IP, IP_FREEBIND, &one, sizeof(one)) < 0)
@@ -146,7 +153,7 @@ int make_socket_fd(int log_level, const char* address, int flags) {
         }
 
         fd = socket_address_listen(&a, flags, SOMAXCONN, SOCKET_ADDRESS_DEFAULT,
-                                   NULL, false, false, 0755, 0644, NULL);
+                                   NULL, false, false, false, 0755, 0644, NULL);
         if (fd < 0 || log_get_max_level() >= log_level) {
                 _cleanup_free_ char *p = NULL;
 
diff --git a/src/basic/socket-util.h b/src/basic/socket-util.h
index 538cf59174..6b0ce7836f 100644
--- a/src/basic/socket-util.h
+++ b/src/basic/socket-util.h
@@ -80,6 +80,7 @@ int socket_address_listen(
                 int backlog,
                 SocketAddressBindIPv6Only only,
                 const char *bind_to_device,
+                bool reuse_port,
                 bool free_bind,
                 bool transparent,
                 mode_t directory_mode,
diff --git a/src/basic/util.c b/src/basic/util.c
index 727be56f58..aa912bde28 100644
--- a/src/basic/util.c
+++ b/src/basic/util.c
@@ -3627,7 +3627,7 @@ bool string_is_safe(const char *p) {
                 if (*t > 0 && *t < ' ')
                         return false;
 
-                if (strchr("\\\"\'\0x7f", *t))
+                if (strchr("\\\"\'\x7f", *t))
                         return false;
         }
 
@@ -5925,10 +5925,9 @@ int rename_noreplace(int olddirfd, const char *oldpath, int newdirfd, const char
         if (ret >= 0)
                 return 0;
 
-        /* Even though renameat2() exists since Linux 3.15, btrfs added
-         * support for it later. If it is not implemented, fallback to another
-         * method. */
-        if (errno != EINVAL)
+        /* renameat2() exists since Linux 3.15, btrfs added support for it later.
+         * If it is not implemented, fallback to another method. */
+        if (!IN_SET(errno, EINVAL, ENOSYS))
                 return -errno;
 
         /* The link()/unlink() fallback does not work on directories. But