journal: don't write tag objects if nothing has been written since the last time

[elogind.git] / src / shared / util.c

diff --git a/src/shared/util.c b/src/shared/util.c
index af975956dbca755091ca60981e5432e37b8328a4..cbf44ebdfd618a2b69cb6748c16005870a4e4717 100644 (file)
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -1562,19 +1562,25 @@ char *cescape(const char *s) {
         return r;
 }
 
-char *cunescape_length(const char *s, size_t length) {
+char *cunescape_length_with_prefix(const char *s, size_t length, const char *prefix) {
         char *r, *t;
         const char *f;
+        size_t pl;
 
         assert(s);
 
-        /* Undoes C style string escaping */
+        /* Undoes C style string escaping, and optionally prefixes it. */
+
+        pl = prefix ? strlen(prefix) : 0;
 
-        r = new(char, length+1);
+        r = new(char, pl+length+1);
         if (!r)
                 return r;
 
-        for (f = s, t = r; f < s + length; f++) {
+        if (prefix)
+                memcpy(r, prefix, pl);
+
+        for (f = s, t = r + pl; f < s + length; f++) {
 
                 if (*f != '\\') {
                         *(t++) = *f;
@@ -1685,7 +1691,13 @@ finish:
         return r;
 }
 
+char *cunescape_length(const char *s, size_t length) {
+        return cunescape_length_with_prefix(s, length, NULL);
+}
+
 char *cunescape(const char *s) {
+        assert(s);
+
         return cunescape_length(s, strlen(s));
 }
 
@@ -2999,7 +3011,8 @@ unsigned long long random_ull(void) {
         uint64_t ull;
         ssize_t r;
 
-        if ((fd = open("/dev/urandom", O_RDONLY|O_CLOEXEC|O_NOCTTY)) < 0)
+        fd = open("/dev/urandom", O_RDONLY|O_CLOEXEC|O_NOCTTY);
+        if (fd < 0)
                 goto fallback;
 
         r = loop_read(fd, &ull, sizeof(ull), true);
@@ -4344,7 +4357,7 @@ void execute_directory(const char *directory, DIR *d, char *argv[]) {
                 }
 
                 if ((path = hashmap_remove(pids, UINT_TO_PTR(si.si_pid)))) {
-                        if (!is_clean_exit(si.si_code, si.si_status)) {
+                        if (!is_clean_exit(si.si_code, si.si_status, NULL)) {
                                 if (si.si_code == CLD_EXITED)
                                         log_error("%s exited with exit status %i.", path, si.si_status);
                                 else