e5dd01ef24
If there is a write error on stdout, a message will be printed (to stderr) and the exit status will be changed to 2 if it would have been 0 or 1. PR: bin/158206
84 lines
3.1 KiB
C
84 lines
3.1 KiB
C
/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Kenneth Almquist.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)output.h 8.2 (Berkeley) 5/4/95
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* $FreeBSD$
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*/
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#ifndef OUTPUT_INCL
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#include <stdarg.h>
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#include <stddef.h>
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struct output {
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char *nextc;
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int nleft;
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char *buf;
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int bufsize;
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short fd;
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short flags;
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};
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extern struct output output; /* to fd 1 */
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extern struct output errout; /* to fd 2 */
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extern struct output memout;
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extern struct output *out1; /* &memout if backquote, otherwise &output */
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extern struct output *out2; /* &memout if backquote with 2>&1, otherwise
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&errout */
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void outcslow(int, struct output *);
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void out1str(const char *);
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void out1qstr(const char *);
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void out2str(const char *);
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void out2qstr(const char *);
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void outstr(const char *, struct output *);
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void outqstr(const char *, struct output *);
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void outbin(const void *, size_t, struct output *);
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void emptyoutbuf(struct output *);
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void flushall(void);
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void flushout(struct output *);
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void freestdout(void);
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int outiserror(struct output *);
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void outclearerror(struct output *);
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void outfmt(struct output *, const char *, ...) __printflike(2, 3);
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void out1fmt(const char *, ...) __printflike(1, 2);
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void out2fmt_flush(const char *, ...) __printflike(1, 2);
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void fmtstr(char *, int, const char *, ...) __printflike(3, 4);
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void doformat(struct output *, const char *, va_list) __printflike(2, 0);
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int xwrite(int, const char *, int);
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#define outc(c, file) (--(file)->nleft < 0? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
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#define out1c(c) outc(c, out1);
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#define out2c(c) outcslow(c, out2);
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#define OUTPUT_INCL
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#endif
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