util-lib: split our string related calls from util.[ch] into its own file string-util.[ch]

There are more than enough calls doing string manipulations to deserve
its own files, hence do something about it.

This patch also sorts the #include blocks of all files that needed to be
updated, according to the sorting suggestions from CODING_STYLE. Since
pretty much every file needs our string manipulation functions this
effectively means that most files have sorted #include blocks now.

Also touches a few unrelated include files.

3 files changed, 21 insertions, 17 deletions

diff --git a/src/libsystemd/sd-resolve/resolve-util.h b/src/libsystemd/sd-resolve/resolve-util.h
index 019cdaffe1..51a8a8af83 100644
--- a/src/libsystemd/sd-resolve/resolve-util.h
+++ b/src/libsystemd/sd-resolve/resolve-util.h
@@ -21,9 +21,10 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include "util.h"
 #include "sd-resolve.h"
 
+#include "util.h"
+
 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_resolve*, sd_resolve_unref);
 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_resolve_query*, sd_resolve_query_unref);
 
diff --git a/src/libsystemd/sd-resolve/sd-resolve.c b/src/libsystemd/sd-resolve/sd-resolve.c
index 888b372c99..024ad9ead1 100644
--- a/src/libsystemd/sd-resolve/sd-resolve.c
+++ b/src/libsystemd/sd-resolve/sd-resolve.c
@@ -19,24 +19,25 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <signal.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
 #include <errno.h>
+#include <poll.h>
+#include <pthread.h>
 #include <resolv.h>
+#include <signal.h>
 #include <stdint.h>
-#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <sys/prctl.h>
-#include <poll.h>
+#include <unistd.h>
+
+#include "sd-resolve.h"
 
-#include "util.h"
 #include "list.h"
-#include "socket-util.h"
 #include "missing.h"
 #include "resolve-util.h"
-#include "sd-resolve.h"
+#include "socket-util.h"
+#include "util.h"
 
 #define WORKERS_MIN 1U
 #define WORKERS_MAX 16U
diff --git a/src/libsystemd/sd-resolve/test-resolve.c b/src/libsystemd/sd-resolve/test-resolve.c
index e8056529f5..87e6e47041 100644
--- a/src/libsystemd/sd-resolve/test-resolve.c
+++ b/src/libsystemd/sd-resolve/test-resolve.c
@@ -20,18 +20,20 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <string.h>
-#include <sys/socket.h>
 #include <arpa/inet.h>
-#include <stdio.h>
+#include <errno.h>
 #include <netinet/in.h>
 #include <resolv.h>
-#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
 
-#include "socket-util.h"
 #include "sd-resolve.h"
-#include "resolve-util.h"
+
 #include "macro.h"
+#include "resolve-util.h"
+#include "socket-util.h"
+#include "string-util.h"
 
 static int getaddrinfo_handler(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata) {
         const struct addrinfo *i;