/*********************************************************************** * * * This software is part of the ast package * * Copyright (c) 1985-2010 AT&T Intellectual Property * * and is licensed under the * * Common Public License, Version 1.0 * * by AT&T Intellectual Property * * * * 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 * * * * Glenn Fowler <gsf@research.att.com> * * David Korn <dgk@research.att.com> * * Phong Vo <kpv@research.att.com> * * * ***********************************************************************/ #pragma prototyped /* * ksh builtin command api */ #ifndef _SHCMD_H #define _SHCMD_H 1 #ifndef SH_VERSION # define Shell_t void #endif #ifndef NV_DEFAULT # define Namval_t void #endif #ifndef ERROR_NOTIFY # define ERROR_NOTIFY 1 #endif typedef int (*Shbltin_f)(int, char**, void*); #undef Shbltin_t typedef struct Shbltin_s { Shell_t *shp; void *ptr; int version; int (*shrun)(int, char**); int (*shtrap)(const char*, int); void (*shexit)(int); Namval_t *(*shbltin)(const char*, Shbltin_f, void*); unsigned char notify; unsigned char sigset; unsigned char nosfio; Namval_t *bnode; Namval_t *vnode; char *data; int flags; char *(*shgetenv)(const char*); char *(*shsetenv)(const char*); int invariant; } Shbltin_t; #if defined(SH_VERSION) || defined(_SH_PRIVATE) # undef Shell_t # undef Namval_t #else # define sh_context(c) ((Shbltin_t*)(c)) # define sh_run(c, ac, av) ((c)?(*sh_context(c)->shrun)(ac,av):-1) # define sh_system(c,str) ((c)?(*sh_context(c)->shtrap)(str,0):system(str)) # define sh_exit(c,n) ((c)?(*sh_context(c)->shexit)(n):exit(n)) # define sh_checksig(c) ((c) && sh_context(c)->sigset) # if defined(SFIO_VERSION) || defined(_AST_H) # define LIB_INIT(c) # else # define LIB_INIT(c) ((c) && (sh_context(c)->nosfio = 1)) # endif # ifndef _CMD_H # define cmdinit(ac,av,c,cat,flg) do { if((ac)<=0) return(0); \ (sh_context(c)->notify = ((flg)&ERROR_NOTIFY)?1:0);} while(0) # endif #endif #if _BLD_ast && defined(__EXPORT__) #define extern __EXPORT__ #endif extern int astintercept(Shbltin_t*, int); #undef extern #endif