util: rename write_one_line_file() to write_string_file()

You can write much more than just one line with this call (and we
frequently do), so let's correct the naming.

6 files changed, 16 insertions, 22 deletions

diff --git a/src/shared/capability.c b/src/shared/capability.c
index cad718d749..321952067d 100644
--- a/src/shared/capability.c
+++ b/src/shared/capability.c
@@ -204,7 +204,7 @@ static int drop_from_file(const char *fn, uint64_t drop) {
         if (asprintf(&p, "%u %u", lo, hi) < 0)
                 return -ENOMEM;
 
-        r = write_one_line_file(fn, p);
+        r = write_string_file(fn, p);
         free(p);
 
         return r;
diff --git a/src/shared/cgroup-util.c b/src/shared/cgroup-util.c
index be00b40fa2..15e1b7c055 100644
--- a/src/shared/cgroup-util.c
+++ b/src/shared/cgroup-util.c
@@ -677,9 +677,9 @@ int cg_delete(const char *controller, const char *path) {
 }
 
 int cg_attach(const char *controller, const char *path, pid_t pid) {
-        char *fs;
+        _cleanup_free_ char *fs = NULL;
+        char c[DECIMAL_STR_MAX(pid_t) + 2];
         int r;
-        char c[32];
 
         assert(controller);
         assert(path);
@@ -693,16 +693,12 @@ int cg_attach(const char *controller, const char *path, pid_t pid) {
                 pid = getpid();
 
         snprintf(c, sizeof(c), "%lu\n", (unsigned long) pid);
-        char_array_0(c);
-
-        r = write_one_line_file(fs, c);
-        free(fs);
 
-        return r;
+        return write_string_file(fs, c);
 }
 
 int cg_set_group_access(const char *controller, const char *path, mode_t mode, uid_t uid, gid_t gid) {
-        char *fs;
+        _cleanup_free_ char *fs = NULL;
         int r;
 
         assert(controller);
@@ -715,10 +711,7 @@ int cg_set_group_access(const char *controller, const char *path, mode_t mode, u
         if (r < 0)
                 return r;
 
-        r = chmod_and_chown(fs, mode, uid, gid);
-        free(fs);
-
-        return r;
+        return chmod_and_chown(fs, mode, uid, gid);
 }
 
 int cg_set_task_access(const char *controller, const char *path, mode_t mode, uid_t uid, gid_t gid, int sticky) {
@@ -857,7 +850,8 @@ int cg_install_release_agent(const char *controller, const char *agent) {
                         goto finish;
                 }
 
-                if ((r = write_one_line_file(fs, line)) < 0)
+                r = write_string_file(fs, line);
+                if (r < 0)
                         goto finish;
 
         } else if (!streq(sc, agent)) {
@@ -878,7 +872,7 @@ int cg_install_release_agent(const char *controller, const char *agent) {
         sc = strstrip(contents);
 
         if (streq(sc, "0")) {
-                if ((r = write_one_line_file(fs, "1\n")) < 0)
+                if ((r = write_string_file(fs, "1\n")) < 0)
                         goto finish;
 
                 r = 1;
diff --git a/src/shared/fileio-label.c b/src/shared/fileio-label.c
index 5bf127bcf1..0711826e85 100644
--- a/src/shared/fileio-label.c
+++ b/src/shared/fileio-label.c
@@ -26,14 +26,14 @@
 #include "fileio-label.h"
 #include "label.h"
 
-int write_one_line_file_atomic_label(const char *fn, const char *line) {
+int write_string_file_atomic_label(const char *fn, const char *line) {
         int r;
 
         r = label_context_set(fn, S_IFREG);
         if (r  < 0)
                 return r;
 
-        write_one_line_file_atomic(fn, line);
+        write_string_file_atomic(fn, line);
 
         label_context_clear();
 
diff --git a/src/shared/fileio-label.h b/src/shared/fileio-label.h
index cc5ce34708..fce4fe0d73 100644
--- a/src/shared/fileio-label.h
+++ b/src/shared/fileio-label.h
@@ -25,5 +25,5 @@
 #include <stdio.h>
 #include "fileio.h"
 
-int write_one_line_file_atomic_label(const char *fn, const char *line);
+int write_string_file_atomic_label(const char *fn, const char *line);
 int write_env_file_label(const char *fname, char **l);
diff --git a/src/shared/fileio.c b/src/shared/fileio.c
index 1c7d485130..5b8be5ce2d 100644
--- a/src/shared/fileio.c
+++ b/src/shared/fileio.c
@@ -24,7 +24,7 @@
 #include "util.h"
 #include "strv.h"
 
-int write_one_line_file(const char *fn, const char *line) {
+int write_string_file(const char *fn, const char *line) {
         _cleanup_fclose_ FILE *f = NULL;
 
         assert(fn);
@@ -49,7 +49,7 @@ int write_one_line_file(const char *fn, const char *line) {
         return 0;
 }
 
-int write_one_line_file_atomic(const char *fn, const char *line) {
+int write_string_file_atomic(const char *fn, const char *line) {
         _cleanup_fclose_ FILE *f = NULL;
         _cleanup_free_ char *p = NULL;
         int r;
diff --git a/src/shared/fileio.h b/src/shared/fileio.h
index 0023204a73..612968b93d 100644
--- a/src/shared/fileio.h
+++ b/src/shared/fileio.h
@@ -23,8 +23,8 @@
 #include <stddef.h>
 #include "macro.h"
 
-int write_one_line_file(const char *fn, const char *line);
-int write_one_line_file_atomic(const char *fn, const char *line);
+int write_string_file(const char *fn, const char *line);
+int write_string_file_atomic(const char *fn, const char *line);
 int read_one_line_file(const char *fn, char **line);
 int read_full_file(const char *fn, char **contents, size_t *size);