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cde/src/cmd/ksh93/include/defs.h
Martijn Dekker 807863c29a Update author attributions in all source files 
This commit:

1. Updates the COPYRIGHT file with all the contributors to ksh
   93u+m since the reboot, based on the commit history, sorted by
   number of commits in descending order. It also separates the
   authors of backported contributions from direct contributors.

2. Adds missing contributors of source each file to that file's
   copyright header based on that file's commit history.

The script used to maintain this is now up at:
https://github.com/ksh93/ksh/wiki/update-copyright.sh

In addition, the original ast copyright notice is restored to
its EPL 1.0 version -- that is what AT&T Intellectual Property
originally licensed this code under, and we are the ones who
upgraded it to EPL 2.0 (as allowed by EPL 1.0) in 441dcc04.
The history should be accurate.
2022-07-31 00:47:08 +02:00

226 lines
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/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1982-2012 AT&T Intellectual Property *
* Copyright (c) 2020-2022 Contributors to ksh 93u+m *
* and is licensed under the *
* Eclipse Public License, Version 2.0 *
* *
* A copy of the License is available at *
* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html *
* (with md5 checksum 84283fa8859daf213bdda5a9f8d1be1d) *
* *
* David Korn <dgk@research.att.com> *
* Martijn Dekker <martijn@inlv.org> *
* Johnothan King <johnothanking@protonmail.com> *
* *
***********************************************************************/
/*
* David Korn
* AT&T Labs
*
* Shell interface private definitions
*
*/
#ifndef defs_h_defined
#define defs_h_defined
/* In case multibyte support was disabled for ksh only (SHOPT_MULTIBYTE==0) and not for libast */
#if !SHOPT_MULTIBYTE && !AST_NOMULTIBYTE
# undef AST_NOMULTIBYTE
# define AST_NOMULTIBYTE 1
#endif
#include <ast.h>
#if !defined(AST_VERSION) || AST_VERSION < 20220801
#error libast version 20220801 or later is required
#endif
#if !_lib_fork
#error In 2021, ksh joined the 21st century and started requiring fork(2).
#endif
#include <sfio.h>
#include <error.h>
#include "FEATURE/externs"
#include "FEATURE/options"
#include <cdt.h>
#include "argnod.h"
#include "name.h"
#include <ctype.h>
#ifndef pointerof
#define pointerof(x) ((void*)((char*)0+(x)))
#endif
#define Empty ((char*)(e_sptbnl+3))
#define AltEmpty ((char*)(e_dot+1)) /* alternative pointer to empty string */
#define env_change() (++ast.env_serial)
extern char* sh_getenv(const char*);
extern char* sh_setenviron(const char*);
#ifndef SH_wait_f_defined
typedef int (*Shwait_f)(int, long, int);
# define SH_wait_f_defined
#endif
#include <shell.h>
#include "shtable.h"
#include "regress.h"
/* error exits from various parts of shell */
#define NIL(type) ((type)0)
#define exitset() (sh.savexit=sh.exitval)
#ifndef SH_DICT
#define SH_DICT (void*)e_dict
#endif
#ifndef SH_CMDLIB_DIR
#define SH_CMDLIB_DIR "/opt/ast/bin"
#endif
#define SH_ID "ksh" /* ksh ID */
#define SH_STD "sh" /* standard sh ID */
/* defines for sh_type() */
#define SH_TYPE_SH 001
#define SH_TYPE_KSH 002
#define SH_TYPE_POSIX 004
#define SH_TYPE_LOGIN 010
#define SH_TYPE_RESTRICTED 040
#ifndef PIPE_BUF
# define PIPE_BUF 512
#endif
#define MATCH_MAX 64
#define SH_READEVAL 0x4000 /* for sh_eval */
#define SH_FUNEVAL 0x10000 /* for sh_eval for function load */
extern char **sh_argbuild(int*,const struct comnod*,int);
extern struct dolnod *sh_argfree(struct dolnod*,int);
extern struct dolnod *sh_argnew(char*[],struct dolnod**);
extern void *sh_argopen(void);
extern struct argnod *sh_argprocsub(struct argnod*);
extern void sh_argreset(struct dolnod*,struct dolnod*);
extern void sh_assignok(Namval_t*,int);
extern struct dolnod *sh_arguse(void);
extern char *sh_checkid(char*,char*);
extern void sh_chktrap(void);
extern int sh_debug(const char*,const char*,const char*,char *const[],int);
extern char **sh_envgen(void);
extern void sh_envnolocal(Namval_t*,void*);
extern Sfdouble_t sh_arith(const char*);
extern void *sh_arithcomp(char*);
extern pid_t sh_fork(int,int*);
extern pid_t _sh_fork(pid_t, int ,int*);
extern void sh_invalidate_ifs(void);
extern char *sh_mactrim(char*,int);
extern int sh_macexpand(struct argnod*,struct argnod**,int);
extern int sh_macfun(const char*,int);
extern void sh_machere(Sfio_t*, Sfio_t*, char*);
extern void *sh_macopen(void);
extern char *sh_macpat(struct argnod*,int);
extern Sfdouble_t sh_mathfun(void*, int, Sfdouble_t*);
extern int sh_outtype(Sfio_t*);
extern char *sh_mactry(char*);
extern int sh_mathstd(const char*);
extern void sh_printopts(Shopt_t,int,Shopt_t*);
extern int sh_readline(char**,volatile int,int,ssize_t,long);
extern Sfio_t *sh_sfeval(char*[]);
extern void sh_setmatch(const char*,int,int,int[],int);
extern void sh_scope(struct argnod*, int);
extern Namval_t *sh_scoped(Namval_t*);
extern Dt_t *sh_subtracktree(int);
extern Dt_t *sh_subfuntree(int);
extern void sh_subjobcheck(pid_t);
extern int sh_subsavefd(int);
extern void sh_subtmpfile(void);
extern char *sh_substitute(const char*,const char*,char*);
extern const char *_sh_translate(const char*);
extern int sh_trace(char*[],int);
extern void sh_trim(char*);
extern int sh_type(const char*);
extern void sh_unscope(void);
#if SHOPT_NAMESPACE
extern Namval_t *sh_fsearch(const char *,int);
#endif /* SHOPT_NAMESPACE */
/* malloc related wrappers */
extern void *sh_malloc(size_t size);
extern void *sh_realloc(void *ptr, size_t size);
extern void *sh_calloc(size_t nmemb, size_t size);
extern char *sh_strdup(const char *s);
extern void *sh_memdup(const void *s, size_t n);
extern char *sh_getcwd(void);
#define new_of(type,x) ((type*)sh_malloc((unsigned)sizeof(type)+(x)))
#define sh_newof(p,t,n,x) ((p)?(t*)sh_realloc((char*)(p),sizeof(t)*(n)+(x)):(t*)sh_calloc(1,sizeof(t)*(n)+(x)))
#define URI_RFC3986_UNRESERVED "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~"
#ifndef ERROR_dictionary
# define ERROR_dictionary(s) (s)
#endif
#define sh_translate(s) _sh_translate(ERROR_dictionary(s))
#define WBITS (sizeof(long)*8)
#define WMASK (0xff)
#define is_option(s,x) ((s)->v[((x)&WMASK)/WBITS] & (1L << ((x) % WBITS)))
#define on_option(s,x) ((s)->v[((x)&WMASK)/WBITS] |= (1L << ((x) % WBITS)))
#define off_option(s,x) ((s)->v[((x)&WMASK)/WBITS] &= ~(1L << ((x) % WBITS)))
#define sh_isoption(x) is_option(&sh.options,x)
#define sh_onoption(x) on_option(&sh.options,x)
#define sh_offoption(x) off_option(&sh.options,x)
#define sh_state(x) ( 1<<(x))
#define sh_isstate(x) (sh.st.states&sh_state(x))
#define sh_onstate(x) (sh.st.states |= sh_state(x))
#define sh_offstate(x) (sh.st.states &= ~sh_state(x))
#define sh_getstate() (sh.st.states)
#define sh_setstate(x) (sh.st.states = (x))
#define sh_sigcheck() do { if(sh.trapnote & SH_SIGSET) sh_exit(SH_EXITSIG); } while(0)
extern int32_t sh_mailchk;
extern const char e_dict[]; /* error message catalog */
extern const char e_sptbnl[]; /* default IFS: " \t\n" */
extern const char e_dot[]; /* default path & name of dot command: "." */
/* sh_printopts() mode flags -- set --[no]option by default */
#define PRINT_VERBOSE 0x01 /* option on|off list */
#define PRINT_ALL 0x02 /* list unset options too */
#define PRINT_NO_HEADER 0x04 /* omit listing header */
#define PRINT_TABLE 0x10 /* table of all options */
#if SHOPT_STATS
/* performance statistics */
# define STAT_ARGHITS 0
# define STAT_ARGEXPAND 1
# define STAT_COMSUB 2
# define STAT_FORKS 3
# define STAT_FUNCT 4
# define STAT_GLOBS 5
# define STAT_READS 6
# define STAT_NVHITS 7
# define STAT_NVOPEN 8
# define STAT_PATHS 9
# define STAT_SVFUNCT 10
# define STAT_SCMDS 11
# define STAT_SPAWN 12
# define STAT_SUBSHELL 13
extern const Shtable_t shtab_stats[];
# define sh_stats(x) (sh.stats[(x)]++)
#else
# define sh_stats(x)
#endif /* SHOPT_STATS */
#endif /* !defs_h_defined */
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