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-rw-r--r--erts/emulator/pcre/pcre_refcount.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/erts/emulator/pcre/pcre_refcount.c b/erts/emulator/pcre/pcre_refcount.c
index a2077b9d52..5b2af2f47b 100644
--- a/erts/emulator/pcre/pcre_refcount.c
+++ b/erts/emulator/pcre/pcre_refcount.c
@@ -6,7 +6,7 @@
and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel
- Copyright (c) 1997-2008 University of Cambridge
+ Copyright (c) 1997-2012 University of Cambridge
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
@@ -38,7 +38,7 @@ POSSIBILITY OF SUCH DAMAGE.
*/
-/* This module contains the external function erts_pcre_refcount(), which is an
+/* This module contains the external function pcre_refcount(), which is an
auxiliary function that can be used to maintain a reference count in a compiled
pattern data block. This might be helpful in applications where the block is
shared by different users. */
@@ -69,11 +69,21 @@ Returns: the (possibly updated) count value (a non-negative number), or
a negative error number
*/
-PCRE_EXP_DEFN int
-erts_pcre_refcount(pcre *argument_re, int adjust)
+#if defined COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_refcount(pcre *argument_re, int adjust)
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_refcount(pcre16 *argument_re, int adjust)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre32_refcount(pcre32 *argument_re, int adjust)
+#endif
{
-real_pcre *re = (real_pcre *)argument_re;
+REAL_PCRE *re = (REAL_PCRE *)argument_re;
if (re == NULL) return PCRE_ERROR_NULL;
+if (re->magic_number != MAGIC_NUMBER) return PCRE_ERROR_BADMAGIC;
+if ((re->flags & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE;
re->ref_count = (-adjust > re->ref_count)? 0 :
(adjust + re->ref_count > 65535)? 65535 :
re->ref_count + adjust;