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-rw-r--r--cpukit/posix/src/semaphorecreatesupp.c32
1 files changed, 20 insertions, 12 deletions
diff --git a/cpukit/posix/src/semaphorecreatesupp.c b/cpukit/posix/src/semaphorecreatesupp.c
index 42e530bf07..7673b51752 100644
--- a/cpukit/posix/src/semaphorecreatesupp.c
+++ b/cpukit/posix/src/semaphorecreatesupp.c
@@ -24,13 +24,11 @@
#include <rtems/system.h>
#include <rtems/score/object.h>
+#include <rtems/score/wkspace.h>
#include <rtems/posix/semaphore.h>
#include <rtems/posix/time.h>
#include <rtems/seterr.h>
-/* pure ANSI mode does not have this prototype */
-size_t strnlen(const char *, size_t);
-
/*
* _POSIX_Semaphore_Create_support
*
@@ -39,7 +37,8 @@ size_t strnlen(const char *, size_t);
* sem_open.
*/
int _POSIX_Semaphore_Create_support(
- const char *name,
+ const char *name_arg,
+ size_t name_len,
int pshared,
unsigned int value,
POSIX_Semaphore_Control **the_sem
@@ -47,26 +46,35 @@ int _POSIX_Semaphore_Create_support(
{
POSIX_Semaphore_Control *the_semaphore;
CORE_semaphore_Attributes *the_sem_attr;
- char *name_p = (char *)name;
+ char *name;
/* Sharing semaphores among processes is not currently supported */
if (pshared != 0)
rtems_set_errno_and_return_minus_one( ENOSYS );
- if ( name ) {
- if ( strnlen( name, NAME_MAX ) >= NAME_MAX )
- rtems_set_errno_and_return_minus_one( ENAMETOOLONG );
- }
-
_Thread_Disable_dispatch();
the_semaphore = _POSIX_Semaphore_Allocate();
-
if ( !the_semaphore ) {
_Thread_Enable_dispatch();
rtems_set_errno_and_return_minus_one( ENOSPC );
}
+ /*
+ * Make a copy of the user's string for name just in case it was
+ * dynamically constructed.
+ */
+ if ( name_arg != NULL ) {
+ name = _Workspace_String_duplicate( name_arg, name_len );
+ if ( !name ) {
+ _POSIX_Semaphore_Free( the_semaphore );
+ _Thread_Enable_dispatch();
+ rtems_set_errno_and_return_minus_one( ENOMEM );
+ }
+ } else {
+ name = NULL;
+ }
+
the_semaphore->process_shared = pshared;
if ( name ) {
@@ -103,7 +111,7 @@ int _POSIX_Semaphore_Create_support(
_Objects_Open_string(
&_POSIX_Semaphore_Information,
&the_semaphore->Object,
- name_p
+ name
);
*the_sem = the_semaphore;