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diff --git a/bin/sh/output.h b/bin/sh/output.h
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+++ b/bin/sh/output.h
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+/*-
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)output.h	8.1 (Berkeley) 5/31/93
+ */
+
+#ifndef OUTPUT_INCL
+
+struct output {
+	char *nextc;
+	int nleft;
+	char *buf;
+	int bufsize;
+	short fd;
+	short flags;
+};
+
+extern struct output output;
+extern struct output errout;
+extern struct output memout;
+extern struct output *out1;
+extern struct output *out2;
+
+
+#ifdef __STDC__
+void outstr(char *, struct output *);
+void out1str(char *);
+void out2str(char *);
+void outfmt(struct output *, char *, ...);
+void out1fmt(char *, ...);
+void fmtstr(char *, int, char *, ...);
+/* void doformat(struct output *, char *, va_list); */
+void doformat();
+void emptyoutbuf(struct output *);
+void flushall(void);
+void flushout(struct output *);
+void freestdout(void);
+int xwrite(int, char *, int);
+int xioctl(int, int, int);
+#else
+void outstr();
+void out1str();
+void out2str();
+void outfmt();
+void out1fmt();
+void fmtstr();
+/* void doformat(); */
+void doformat();
+void emptyoutbuf();
+void flushall();
+void flushout();
+void freestdout();
+int xwrite();
+int xioctl();
+#endif
+
+#define outc(c, file)	(--(file)->nleft < 0? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
+#define out1c(c)	outc(c, out1);
+#define out2c(c)	outc(c, out2);
+
+#define OUTPUT_INCL
+#endif