--- Libc/Libc-763.13/stdio/FreeBSD/freopen.c
+++ Libc/Libc-1669.0.4/stdio/FreeBSD/freopen.c
@@ -48,6 +48,7 @@
 #include "un-namespace.h"
 #include "libc_private.h"
 #include "local.h"
+#include "libc_hooks_impl.h"
 
 /*
  * Re-direct an existing, open (probably) file to some other file.
@@ -55,13 +56,14 @@
  * all possible, no matter what.
  */
 FILE *
-freopen(file, mode, fp)
-	const char * __restrict file;
-	const char * __restrict mode;
-	FILE *fp;
+freopen(const char * __restrict file, const char * __restrict mode, FILE *fp)
 {
 	int f;
 	int dflags, flags, isopen, oflags, sverrno, wantfd;
+
+	libc_hooks_will_read_cstring(file);
+	libc_hooks_will_read_cstring(mode);
+	libc_hooks_will_write(fp, sizeof(*fp));
 
 	if ((flags = __sflags(mode, &oflags)) == 0) {
 		sverrno = errno;
@@ -70,10 +72,9 @@
 		return (NULL);
 	}
 
+	pthread_once(&__sdidinit, __sinit);
+	
 	FLOCKFILE(fp);
-
-	if (!__sdidinit)
-		__sinit();
 
 	/*
 	 * If the filename is a NULL pointer, the caller is asking us to
@@ -98,7 +99,7 @@
 		    (oflags & O_ACCMODE)) {
 			fclose(fp);
 			FUNLOCKFILE(fp);
-			errno = EINVAL;
+			errno = EBADF;
 			return (NULL);
 		}
 		if (fp->_flags & __SWR)
@@ -131,6 +132,8 @@
 	 * descriptor (if any) was associated with it.  If it was attached to
 	 * a descriptor, defer closing it; freopen("/dev/stdin", "r", stdin)
 	 * should work.  This is unnecessary if it was not a Unix file.
+	 *
+	 * For UNIX03, we always close if it was open.
 	 */
 	if (fp->_flags == 0) {
 		fp->_flags = __SEOF;	/* hold on to it */
@@ -141,11 +144,18 @@
 		if (fp->_flags & __SWR)
 			(void) __sflush(fp);
 		/* if close is NULL, closing is a no-op, hence pointless */
+#if __DARWIN_UNIX03
+		if (fp->_close)
+			(void) (*fp->_close)(fp->_cookie);
+		isopen = 0;
+		wantfd = -1;
+#else /* !__DARWIN_UNIX03 */
 		isopen = fp->_close != NULL;
 		if ((wantfd = fp->_file) < 0 && isopen) {
 			(void) (*fp->_close)(fp->_cookie);
 			isopen = 0;
 		}
+#endif /* __DARWIN_UNIX03 */
 	}
 
 	/* Get a new descriptor to refer to the new file. */
@@ -186,8 +196,8 @@
 	memset(&fp->_mbstate, 0, sizeof(mbstate_t));
 
 	if (f < 0) {			/* did not get it after all */
-		fp->_flags = 0;		/* set it free */
 		FUNLOCKFILE(fp);
+		__sfprelease(fp);	/* set it free */
 		errno = sverrno;	/* restore in case _close clobbered */
 		return (NULL);
 	}
@@ -212,8 +222,8 @@
 	 * open.
 	 */
 	if (f > SHRT_MAX) {
-		fp->_flags = 0;		/* set it free */
 		FUNLOCKFILE(fp);
+		__sfprelease(fp);	/* set it free */
 		errno = EMFILE;
 		return (NULL);
 	}