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diff --git a/pthread_getname_np.c b/pthread_getname_np.c
index 8fc32b1..7c18655 100644
--- a/pthread_getname_np.c
+++ b/pthread_getname_np.c
@@ -59,10 +59,18 @@ pthread_getname_np(pthread_t thr, char *name, int len)
__ptw32_mcs_lock_acquire (&tp->threadLock, &threadLock);
- for (s = tp->name, d = name; *s && d < &name[len - 1]; *d++ = *s++)
- {}
+ if(tp->name)
+ {
+ for (s = tp->name, d = name; *s && d < &name[len - 1]; *d++ = *s++)
+ {}
+
+ *d = '\0';
+ }
+ else
+ {
+ *name = '\0';
+ }
- *d = '\0';
__ptw32_mcs_lock_release (&threadLock);
return result;
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