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Diffstat (limited to 'usr/src/lib/libshell/common/include/shell.h')
| -rw-r--r-- | usr/src/lib/libshell/common/include/shell.h | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/usr/src/lib/libshell/common/include/shell.h b/usr/src/lib/libshell/common/include/shell.h new file mode 100644 index 0000000000..66ccd20436 --- /dev/null +++ b/usr/src/lib/libshell/common/include/shell.h @@ -0,0 +1,245 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1982-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* A copy of the License is available at * +* http://www.opensource.org/licenses/cpl1.0.txt * +* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* David Korn <dgk@research.att.com> * +* * +***********************************************************************/ +#pragma prototyped +#ifndef SH_INTERACTIVE +/* + * David Korn + * AT&T Labs + * + * Interface definitions for shell command language + * + */ + +#include <cmd.h> +#include <cdt.h> +#ifdef _SH_PRIVATE +# include "name.h" +#else +# include <nval.h> +#endif /* _SH_PRIVATE */ + +#define SH_VERSION 20060510 + +#undef NOT_USED +#define NOT_USED(x) (&x,1) + +/* options */ +typedef struct +{ + unsigned long v[4]; +} +Shopt_t; + +typedef void (*Shinit_f)(int); +typedef int (*Shbltin_f)(int, char*[], void*); +typedef int (*Shwait_f)(int, long, int); + +union Shnode_u; +typedef union Shnode_u Shnode_t; + +#define SH_CFLAG 0 +#define SH_HISTORY 1 /* used also as a state */ +#define SH_ERREXIT 2 /* used also as a state */ +#define SH_VERBOSE 3 /* used also as a state */ +#define SH_MONITOR 4 /* used also as a state */ +#define SH_INTERACTIVE 5 /* used also as a state */ +#define SH_RESTRICTED 6 +#define SH_XTRACE 7 +#define SH_KEYWORD 8 +#define SH_NOUNSET 9 +#define SH_NOGLOB 10 +#define SH_ALLEXPORT 11 +#define SH_PFSH 12 +#define SH_IGNOREEOF 13 +#define SH_NOCLOBBER 14 +#define SH_MARKDIRS 15 +#define SH_BGNICE 16 +#define SH_VI 17 +#define SH_VIRAW 18 +#define SH_TFLAG 19 +#define SH_TRACKALL 20 +#define SH_SFLAG 21 +#define SH_NOEXEC 22 +#define SH_GMACS 24 +#define SH_EMACS 25 +#define SH_PRIVILEGED 26 +#define SH_SUBSHARE 27 /* subshell shares state with parent */ +#define SH_NOLOG 28 +#define SH_NOTIFY 29 +#define SH_DICTIONARY 30 +#define SH_PIPEFAIL 32 +#define SH_GLOBSTARS 33 +#define SH_XARGS 34 +#define SH_RC 35 +#define SH_SHOWME 36 + +/* + * passed as flags to builtins in Nambltin_t struct when BLT_OPTIM is on + */ +#define SH_BEGIN_OPTIM 0x1 +#define SH_END_OPTIM 0x2 + +/* The following type is used for error messages */ + +/* error messages */ +extern const char e_defpath[]; +extern const char e_found[]; +extern const char e_nospace[]; +extern const char e_format[]; +extern const char e_number[]; +extern const char e_restricted[]; +extern const char e_recursive[]; +extern char e_version[]; + +typedef struct sh_scope +{ + struct sh_scope *par_scope; + int argc; + char **argv; + char *cmdname; + char *filename; + int lineno; + Dt_t *var_tree; + struct sh_scope *self; +} Shscope_t; + +/* + * Saves the state of the shell + */ + +typedef struct sh_static +{ + Shopt_t options; /* set -o options */ + Dt_t *var_tree; /* for shell variables */ + Dt_t *fun_tree; /* for shell functions */ + Dt_t *alias_tree; /* for alias names */ + Dt_t *bltin_tree; /* for builtin commands */ + Shscope_t *topscope; /* pointer to top-level scope */ + int inlineno; /* line number of current input file */ + int exitval; /* most recent exit value */ + unsigned char trapnote; /* set when trap/signal is pending */ + char subshell; /* set for virtual subshell */ +#ifdef _SH_PRIVATE + _SH_PRIVATE +#endif /* _SH_PRIVATE */ +} Shell_t; + +/* flags for sh_parse */ +#define SH_NL 1 /* Treat new-lines as ; */ +#define SH_EOF 2 /* EOF causes syntax error */ + +/* symbolic values for sh_iogetiop */ +#define SH_IOCOPROCESS (-2) +#define SH_IOHISTFILE (-3) + +/* symbolic value for sh_fdnotify */ +#define SH_FDCLOSE (-1) + +#if defined(__EXPORT__) && defined(_DLL) +# ifdef _BLD_shell +# define extern __EXPORT__ +# endif /* _BLD_shell */ +#endif /* _DLL */ + +extern Dt_t *sh_bltin_tree(void); +extern void sh_subfork(void); +extern Shell_t *sh_init(int,char*[],Shinit_f); +extern int sh_reinit(char*[]); +extern int sh_eval(Sfio_t*,int); +extern void sh_delay(double); +extern void *sh_parse(Shell_t*, Sfio_t*,int); +extern int sh_trap(const char*,int); +extern int sh_fun(Namval_t*,Namval_t*, char*[]); +extern int sh_funscope(int,char*[],int(*)(void*),void*,int); +extern Sfio_t *sh_iogetiop(int,int); +extern int sh_main(int, char*[], void(*)(int)); +extern void sh_menu(Sfio_t*, int, char*[]); +extern Namval_t *sh_addbuiltin(const char*, int(*)(int, char*[],void*), void*); +extern char *sh_fmtq(const char*); +extern char *sh_fmtqf(const char*, int, int); +extern Sfdouble_t sh_strnum(const char*, char**, int); +extern int sh_access(const char*,int); +extern int sh_close(int); +extern int sh_dup(int); +extern void sh_exit(int); +extern int sh_fcntl(int, int, ...); +extern Sfio_t *sh_fd2sfio(int); +extern int (*sh_fdnotify(int(*)(int,int)))(int,int); +extern Shell_t *sh_getinterp(void); +extern int sh_open(const char*, int, ...); +extern int sh_openmax(void); +extern Sfio_t *sh_pathopen(const char*); +extern ssize_t sh_read(int, void*, size_t); +extern ssize_t sh_write(int, const void*, size_t); +extern off_t sh_seek(int, off_t, int); +extern int sh_pipe(int[]); +extern mode_t sh_umask(mode_t); +extern void *sh_waitnotify(Shwait_f); +extern Shscope_t *sh_getscope(int,int); +extern Shscope_t *sh_setscope(Shscope_t*); +extern void sh_sigcheck(void); +extern unsigned long sh_isoption(int); +extern unsigned long sh_onoption(int); +extern unsigned long sh_offoption(int); +extern int sh_waitsafe(void); +extern int sh_exec(const Shnode_t*,int); + +#if SHOPT_DYNAMIC + extern void **sh_getliblist(void); +#endif /* SHOPT_DYNAMIC */ + +/* + * direct access to sh is obsolete, use sh_getinterp() instead + */ +#if !defined(_SH_PRIVATE) && defined(__IMPORT__) && !defined(_BLD_shell) + extern __IMPORT__ Shell_t sh; +#else + extern Shell_t sh; +#endif + +#ifdef _DLL +# undef extern +#endif /* _DLL */ + +#ifndef _SH_PRIVATE +# define access(a,b) sh_access(a,b) +# define close(a) sh_close(a) +# define exit(a) sh_exit(a) +# define fcntl(a,b,c) sh_fcntl(a,b,c) +# define pipe(a) sh_pipe(a) +# define read(a,b,c) sh_read(a,b,c) +# define write(a,b,c) sh_write(a,b,c) +# define umask(a) sh_umask(a) +# define dup sh_dup +# if _lib_lseek64 +# define open64 sh_open +# define lseek64 sh_seek +# else +# define open sh_open +# define lseek sh_seek +# endif +#endif /* !_SH_PRIVATE */ + +#define SH_SIGSET 4 +#define SH_EXITSIG 0400 /* signal exit bit */ +#define SH_EXITMASK (SH_EXITSIG-1) /* normal exit status bits */ +#define SH_RUNPROG -1022 /* needs to be negative and < 256 */ + +#endif /* SH_INTERACTIVE */ |