core: New API functions gpgrt_strdup and gpgrt_strconcat.

* src/visibility.c (gpgrt_strdup): New API fucntion.
(gpgrt_strconcat): New API fucntion.
* src/visibility.h: Add corresponding macros.
* src/gpg-error.def.in: Add them.
* src/gpg-error.vers: Add them.
* src/gpgrt-int.h (DIM): New macro.
* src/init.c (_gpgrt_strdup): New.
(_gpgrt_strconcat_core): New.
(_gpgrt_strconcat): New.
--

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 13 insertions, 1 deletions

diff --git a/src/gpgrt-int.h b/src/gpgrt-int.h
index 4db330f..c226e2b 100644
--- a/src/gpgrt-int.h
+++ b/src/gpgrt-int.h
@@ -85,6 +85,14 @@
 #endif /*_GPGRT_NEED_AFLOCAL*/
 
 
+/*
+ * Common helper macros.
+ */
+#ifndef DIM
+# define DIM(array) (sizeof (array) / sizeof (*array))
+#endif
+
+
 
 /*
  * Local error function prototypes.
@@ -103,8 +111,12 @@ void _gpgrt_set_alloc_func (void *(*f)(void *a, size_t n));
 
 void *_gpgrt_realloc (void *a, size_t n);
 void *_gpgrt_malloc (size_t n);
-void _gpgrt_free (void *a);
 void *_gpgrt_calloc (size_t n, size_t m);
+char *_gpgrt_strdup (const char *string);
+char *_gpgrt_strconcat (const char *s1, ...) GPGRT_ATTR_SENTINEL(0);
+void _gpgrt_free (void *a);
+/* The next is only to be used by visibility.c.  */
+char *_gpgrt_strconcat_core (const char *s1, va_list arg_ptr);
 
 const char *_gpg_error_check_version (const char *req_version);