Index: lib/libc/stdio/fgetln.3
===================================================================
--- lib/libc/stdio/fgetln.3
+++ lib/libc/stdio/fgetln.3
@@ -97,6 +97,9 @@
 The argument
 .Fa stream
 is not a stream open for reading.
+.It Bq Er ENOMEM
+The internal line buffer could not be expanded due to lack of available memory,
+or because it would need to expand beyond INT_MAX in size.
 .El
 .Pp
 The
Index: lib/libc/stdio/fgetln.c
===================================================================
--- lib/libc/stdio/fgetln.c
+++ lib/libc/stdio/fgetln.c
@@ -37,6 +37,8 @@
 __FBSDID("$FreeBSD$");
 
 #include "namespace.h"
+#include <errno.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -61,6 +63,10 @@
 #endif
 	if (fp->_lb._size >= newsize)
 		return (0);
+	if (newsize > INT_MAX) {
+		errno = ENOMEM;
+		return (-1);
+	}
 	if ((p = realloc(fp->_lb._base, newsize)) == NULL)
 		return (-1);
 	fp->_lb._base = p;
@@ -159,6 +165,7 @@
 
 error:
 	*lenp = 0;		/* ??? */
+	fp->_flags |= __SERR;
 	FUNLOCKFILE(fp);
 	return (NULL);		/* ??? */
 }
Index: lib/libc/stdio/fputs.c
===================================================================
--- lib/libc/stdio/fputs.c
+++ lib/libc/stdio/fputs.c
@@ -37,6 +37,7 @@
 __FBSDID("$FreeBSD$");
 
 #include "namespace.h"
+#include <limits.h>
 #include <stdio.h>
 #include <string.h>
 #include "un-namespace.h"
@@ -62,5 +63,7 @@
 	ORIENT(fp, -1);
 	retval = __sfvwrite(fp, &uio);
 	FUNLOCKFILE(fp);
+	if (retval == 0)
+		return (iov.iov_len > INT_MAX ? INT_MAX : iov.iov_len);
 	return (retval);
 }
Index: lib/libc/stdio/freopen.c
===================================================================
--- lib/libc/stdio/freopen.c
+++ lib/libc/stdio/freopen.c
@@ -151,6 +151,14 @@
 
 	/* Get a new descriptor to refer to the new file. */
 	f = _open(file, oflags, DEFFILEMODE);
+	/* If out of fd's close the old one and try again. */
+	if (f < 0 && isopen && wantfd > STDERR_FILENO
+	    && (errno == ENFILE || errno == EMFILE)) {
+		(void) (*fp->_close)(fp->_cookie);
+		isopen = 0;
+		wantfd = -1;
+		f = _open(file, oflags, DEFFILEMODE);
+	}
 	sverrno = errno;
 
 finish: