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freebsd-skq/bin/sh/output.h

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BSD 4.4 Lite bin Sources
1994-05-26 06:18:55 +00:00
/*-
General further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
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* SPDX-License-Identifier: BSD-3-Clause
*
BSD 4.4 Lite bin Sources
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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.
Renumber copyright clause 4 Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
* 3. Neither the name of the University nor the names of its contributors
BSD 4.4 Lite bin Sources
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* 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.
*
Merge of 4.4-Lite2 sh source, plus some gcc -Wall cleaning. This is a merge of parallel duplicate work by Steve Price and myself. :-] There are some changes to the build that are my fault... mkinit.c was trying (poorly) to duplicate some of the work that make(1) is designed to do. The Makefile hackery is my fault too, the depend list was incomplete because of some explicit OBJS+= entries, so mkdep wasn't picking up their source file #includes. This closes a pile of /bin/sh PR's, but not all of them.. Submitted by: Steve Price <steve@bonsai.hiwaay.net>, peter
1996-09-01 10:22:36 +00:00
* @(#)output.h 8.2 (Berkeley) 5/4/95
$Id$ -> $FreeBSD$
1999-08-27 23:15:48 +00:00
* $FreeBSD$
BSD 4.4 Lite bin Sources
1994-05-26 06:18:55 +00:00
*/
#ifndef OUTPUT_INCL
Merge of 4.4-Lite2 sh source, plus some gcc -Wall cleaning. This is a merge of parallel duplicate work by Steve Price and myself. :-] There are some changes to the build that are my fault... mkinit.c was trying (poorly) to duplicate some of the work that make(1) is designed to do. The Makefile hackery is my fault too, the depend list was incomplete because of some explicit OBJS+= entries, so mkdep wasn't picking up their source file #includes. This closes a pile of /bin/sh PR's, but not all of them.. Submitted by: Steve Price <steve@bonsai.hiwaay.net>, peter
1996-09-01 10:22:36 +00:00
#include <stdarg.h>
sh: Add binary buffered output for use by the printf builtin.
2010-11-14 15:31:59 +00:00
#include <stddef.h>
Merge of 4.4-Lite2 sh source, plus some gcc -Wall cleaning. This is a merge of parallel duplicate work by Steve Price and myself. :-] There are some changes to the build that are my fault... mkinit.c was trying (poorly) to duplicate some of the work that make(1) is designed to do. The Makefile hackery is my fault too, the depend list was incomplete because of some explicit OBJS+= entries, so mkdep wasn't picking up their source file #includes. This closes a pile of /bin/sh PR's, but not all of them.. Submitted by: Steve Price <steve@bonsai.hiwaay.net>, peter
1996-09-01 10:22:36 +00:00
BSD 4.4 Lite bin Sources
1994-05-26 06:18:55 +00:00
struct output {
char *nextc;
sh: Simplify output buffering. Similarly to how STPUTC was changed, change struct output to store the pointer just past the end of the available space instead of the size of the available space, so after writing a character it is only necessary to increment a pointer and not to decrement a counter.
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char *bufend;
BSD 4.4 Lite bin Sources
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char *buf;
int bufsize;
short fd;
short flags;
};
sh: Fix some bugs with backquoted builtins: - correctly handle error output in $(builtin 2>&1), clarify out1/out2 vs output/errout in the code - treat all builtins as regular builtins so errors do not abort the shell and variable assignments do not persist - respect the caller's INTOFF Some bugs still exist: - expansion errors may still abort the shell - some side effects of expansions and builtins persist
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extern struct output output; /* to fd 1 */
extern struct output errout; /* to fd 2 */
BSD 4.4 Lite bin Sources
1994-05-26 06:18:55 +00:00
extern struct output memout;
sh: Fix some bugs with backquoted builtins: - correctly handle error output in $(builtin 2>&1), clarify out1/out2 vs output/errout in the code - treat all builtins as regular builtins so errors do not abort the shell and variable assignments do not persist - respect the caller's INTOFF Some bugs still exist: - expansion errors may still abort the shell - some side effects of expansions and builtins persist
2010-01-01 18:17:46 +00:00
extern struct output *out1; /* &memout if backquote, otherwise &output */
extern struct output *out2; /* &memout if backquote with 2>&1, otherwise
&errout */
BSD 4.4 Lite bin Sources
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sh: Code size optimizations to buffered output. This is mainly less use of the outc macro. No functional change is intended, but code size is about 2K less on i386.
2010-11-20 14:14:52 +00:00
void outcslow(int, struct output *);
o __P has been reoved o Old-style K&R declarations have been converted to new C89 style o register has been removed o prototype for main() has been removed (gcc3 makes it an error) o int main(int argc, char *argv[]) is the preferred main definition. o Attempt to not break style(9) conformance for declarations more than they already are. o Change int foo() { ... to int foo(void) { ...
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void out1str(const char *);
Missing prototypes from previous commit.
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void out1qstr(const char *);
o __P has been reoved o Old-style K&R declarations have been converted to new C89 style o register has been removed o prototype for main() has been removed (gcc3 makes it an error) o int main(int argc, char *argv[]) is the preferred main definition. o Attempt to not break style(9) conformance for declarations more than they already are. o Change int foo() { ... to int foo(void) { ...
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void out2str(const char *);
Missing prototypes from previous commit.
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void out2qstr(const char *);
o __P has been reoved o Old-style K&R declarations have been converted to new C89 style o register has been removed o prototype for main() has been removed (gcc3 makes it an error) o int main(int argc, char *argv[]) is the preferred main definition. o Attempt to not break style(9) conformance for declarations more than they already are. o Change int foo() { ... to int foo(void) { ...
2002-02-02 06:50:57 +00:00
void outstr(const char *, struct output *);
Missing prototypes from previous commit.
2002-06-04 13:13:54 +00:00
void outqstr(const char *, struct output *);
sh: Add binary buffered output for use by the printf builtin.
2010-11-14 15:31:59 +00:00
void outbin(const void *, size_t, struct output *);
o __P has been reoved o Old-style K&R declarations have been converted to new C89 style o register has been removed o prototype for main() has been removed (gcc3 makes it an error) o int main(int argc, char *argv[]) is the preferred main definition. o Attempt to not break style(9) conformance for declarations more than they already are. o Change int foo() { ... to int foo(void) { ...
2002-02-02 06:50:57 +00:00
void emptyoutbuf(struct output *);
void flushall(void);
void flushout(struct output *);
void freestdout(void);
sh: Detect and flag write errors on stdout in builtins. 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
2012-12-12 22:01:10 +00:00
int outiserror(struct output *);
void outclearerror(struct output *);
o __P has been reoved o Old-style K&R declarations have been converted to new C89 style o register has been removed o prototype for main() has been removed (gcc3 makes it an error) o int main(int argc, char *argv[]) is the preferred main definition. o Attempt to not break style(9) conformance for declarations more than they already are. o Change int foo() { ... to int foo(void) { ...
2002-02-02 06:50:57 +00:00
void outfmt(struct output *, const char *, ...) __printflike(2, 3);
void out1fmt(const char *, ...) __printflike(1, 2);
sh: Some changes to stderr flushing: * increase buffer size from 100 to 256 bytes * remove implied flush from out2str(), in particular this avoids unnecessary flushing in the middle of a -x tracing line * rename dprintf() to out2fmt_flush(), make it flush out2 and use this function in various places where flushing is desired after an error message
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void out2fmt_flush(const char *, ...) __printflike(1, 2);
o __P has been reoved o Old-style K&R declarations have been converted to new C89 style o register has been removed o prototype for main() has been removed (gcc3 makes it an error) o int main(int argc, char *argv[]) is the preferred main definition. o Attempt to not break style(9) conformance for declarations more than they already are. o Change int foo() { ... to int foo(void) { ...
2002-02-02 06:50:57 +00:00
void fmtstr(char *, int, const char *, ...) __printflike(3, 4);
void doformat(struct output *, const char *, va_list) __printflike(2, 0);
sh: Constify various strings. Most of this is adding const keywords, but setvar() in var.c had to be changed somewhat more.
2009-12-24 18:41:14 +00:00
int xwrite(int, const char *, int);
BSD 4.4 Lite bin Sources
1994-05-26 06:18:55 +00:00
sh: Simplify output buffering. Similarly to how STPUTC was changed, change struct output to store the pointer just past the end of the available space instead of the size of the available space, so after writing a character it is only necessary to increment a pointer and not to decrement a counter.
2017-05-16 21:54:51 +00:00
#define outc(c, file) ((file)->nextc == (file)->bufend ? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
BSD 4.4 Lite bin Sources
1994-05-26 06:18:55 +00:00
#define out1c(c) outc(c, out1);
sh: Code size optimizations to buffered output. This is mainly less use of the outc macro. No functional change is intended, but code size is about 2K less on i386.
2010-11-20 14:14:52 +00:00
#define out2c(c) outcslow(c, out2);
BSD 4.4 Lite bin Sources
1994-05-26 06:18:55 +00:00
#define OUTPUT_INCL
#endif
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