getservbyport_r: fix out-of-bounds buffer read

[musl] / src / thread / pthread_self.c

diff --git a/src/thread/pthread_self.c b/src/thread/pthread_self.c
index 686d73d..bd3bf95 100644 (file)
--- a/src/thread/pthread_self.c
+++ b/src/thread/pthread_self.c
@@ -1,39 +1,10 @@
 #include "pthread_impl.h"
+#include <threads.h>
 
-static struct pthread main_thread;
-
-#undef errno
-static int *errno_location()
+static pthread_t __pthread_self_internal()
 {
-       return pthread_self()->errno_ptr;
-}
-
-static int init_main_thread()
-{
-       main_thread.tlsdesc[0] = -1;
-       main_thread.tlsdesc[1] = (long)&main_thread;
-       main_thread.tlsdesc[2] = SIZE_MAX/PAGE_SIZE;
-       main_thread.tlsdesc[3] = 0x51;
-       main_thread.self = &main_thread;
-       main_thread.errno_ptr = __errno_location();
-       if (__set_thread_area(main_thread.tlsdesc) < 0)
-               return -1;
-       syscall1(__NR_set_tid_address, (long)&main_thread.tid);
-       libc.errno_location = errno_location;
-       main_thread.tid = main_thread.pid = getpid();
-       return 0;
-}
-
-#undef pthread_self
-
-pthread_t pthread_self()
-{
-       static int init, failed;
-       if (!init) {
-               if (failed) return 0;
-               if (init_main_thread() < 0) failed = 1;
-               if (failed) return 0;
-               init = 1;
-       }
        return __pthread_self();
 }
+
+weak_alias(__pthread_self_internal, pthread_self);
+weak_alias(__pthread_self_internal, thrd_current);