+
+#define procfs_file_alloca(pid, field) \
+ ({ \
+ pid_t _pid_ = (pid); \
+ char *_r_; \
+ _r_ = alloca(sizeof("/proc/") -1 + DECIMAL_STR_MAX(pid_t) + 1 + sizeof(field)); \
+ sprintf(_r_, "/proc/%lu/" field, (unsigned long) _pid_); \
+ _r_; \
+ })
+
+struct _locale_struct_ {
+ locale_t saved_locale;
+ locale_t new_locale;
+ bool quit;
+};
+
+static inline void _reset_locale_(struct _locale_struct_ *s) {
+ PROTECT_ERRNO;
+ if (s->saved_locale != (locale_t) 0)
+ uselocale(s->saved_locale);
+ if (s->new_locale != (locale_t) 0)
+ freelocale(s->new_locale);
+}
+
+#define RUN_WITH_LOCALE(mask, loc) \
+ for (_cleanup_(_reset_locale_) struct _locale_struct_ _saved_locale_ = { (locale_t) 0, (locale_t) 0, false }; \
+ ({ \
+ if (!_saved_locale_.quit) { \
+ PROTECT_ERRNO; \
+ _saved_locale_.new_locale = newlocale((mask), (loc), (locale_t) 0); \
+ if (_saved_locale_.new_locale != (locale_t) 0) \
+ _saved_locale_.saved_locale = uselocale(_saved_locale_.new_locale); \
+ } \
+ !_saved_locale_.quit; }) ; \
+ _saved_locale_.quit = true)
+
+bool id128_is_valid(const char *s) _pure_;
+void parse_user_at_host(char *arg, char **user, char **host);
+
+int split_pair(const char *s, const char *sep, char **l, char **r);
+
+/**
+ * Normal qsort requires base to be nonnull. Here were require
+ * that only if nmemb > 0.
+ */
+static inline void qsort_safe(void *base, size_t nmemb, size_t size,
+ int (*compar)(const void *, const void *)) {
+ if (nmemb) {
+ assert(base);
+ qsort(base, nmemb, size, compar);
+ }
+}