util: Add _sentinel_ to strextend()

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

diff --git a/src/shared/util.h b/src/shared/util.h
index 69b717ed936b45a9270f9a0b09483d81c281ec50..eee66ccf647bfcde0c34db9c9d41cffe2c1c9fc3 100644 (file)
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -361,8 +361,8 @@ int pipe_eof(int fd);
 
 cpu_set_t* cpu_set_malloc(unsigned *ncpus);
 
-int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap);
-int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...);
+int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) _printf_attr_(4,0);
+int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...) _printf_attr_(4,5);
 int status_welcome(void);
 
 int fd_columns(int fd);
@@ -633,7 +633,7 @@ static inline void *mempset(void *s, int c, size_t n) {
 char *hexmem(const void *p, size_t l);
 void *unhexmem(const char *p, size_t l);
 
-char *strextend(char **x, ...);
+char *strextend(char **x, ...) _sentinel_;
 char *strrep(const char *s, unsigned n);
 
 void* greedy_realloc(void **p, size_t *allocated, size_t need);
@@ -644,7 +644,7 @@ static inline void _reset_errno_(int *saved_errno) {
         errno = *saved_errno;
 }
 
-#define PROTECT_ERRNO _cleanup_(_reset_errno_) int _saved_errno_ = errno
+#define PROTECT_ERRNO _cleanup_(_reset_errno_) __attribute__((unused)) int _saved_errno_ = errno
 
 struct _umask_struct_ {
         mode_t mask;
@@ -733,3 +733,5 @@ static inline void _reset_locale_(struct _locale_struct_ *s) {
                      }                                                  \
                      !_saved_locale_.quit; }) ;                         \
              _saved_locale_.quit = true)
+
+bool id128_is_valid(const char *s);