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/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1992-2009 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> *
* *
***********************************************************************/
#pragma prototyped
/*
* AT&T Research
*
* builtin cmd definitions
*/
#ifndef _CMD_H
#define _CMD_H
#include <ast.h>
#include <error.h>
#include <stak.h>
#include <shcmd.h>
#define cmdinit _cmd_init
#define ERROR_CALLBACK ERROR_SET
#if _BLD_cmd && defined(__EXPORT__)
#define extern __EXPORT__
#endif
#include <cmdext.h>
#undef extern
#if defined(CMD_BUILTIN) && !defined(CMD_STANDALONE)
#define CMD_STANDALONE CMD_BUILTIN
#endif
#ifdef CMD_STANDALONE
#define CMD_CONTEXT(c) ((Shbltin_t*)0)
#if CMD_DYNAMIC
#include <dlldefs.h>
typedef int (*Shbltin_f)(int, char**, void*);
#else
extern int CMD_STANDALONE(int, char**, void*);
#endif
#ifndef CMD_BUILTIN
/*
* command initialization
*/
static int
cmdinit(int argc, register char** argv, void* context, const char* catalog, int flags)
{
register char* cp;
register char* pp;
if (cp = strrchr(argv[0], '/'))
cp++;
else
cp = argv[0];
if (pp = strrchr(cp, '_'))
cp = pp + 1;
error_info.id = cp;
if (!error_info.catalog)
error_info.catalog = (char*)catalog;
opt_info.index = 0;
if (context)
error_info.flags |= flags & ~(ERROR_CALLBACK|ERROR_NOTIFY);
return 0;
}
#endif
int
main(int argc, char** argv)
{
#if CMD_DYNAMIC
register char* s;
register char* t;
void* dll;
Shbltin_f fun;
char buf[64];
if (s = strrchr(argv[0], '/'))
s++;
else if (!(s = argv[0]))
return 127;
if ((t = strrchr(s, '_')) && *++t)
s = t;
buf[0] = '_';
buf[1] = 'b';
buf[2] = '_';
strncpy(buf + 3, s, sizeof(buf) - 4);
buf[sizeof(buf) - 1] = 0;
if (t = strchr(buf, '.'))
*t = 0;
for (;;)
{
if (dll = dlopen(NiL, RTLD_LAZY))
{
if (fun = (Shbltin_f)dlsym(dll, buf + 1))
break;
if (fun = (Shbltin_f)dlsym(dll, buf))
break;
}
if (dll = dllfind("cmd", NiL, RTLD_LAZY))
{
if (fun = (Shbltin_f)dlsym(dll, buf + 1))
break;
if (fun = (Shbltin_f)dlsym(dll, buf))
break;
}
return 127;
}
return (*fun)(argc, argv, NiL);
#else
return CMD_STANDALONE(argc, argv, NiL);
#endif
}
#else
#undef cmdinit
#ifdef _MSC_VER
#define CMD_CONTEXT(p) ((Shbltin_t*)(p))
#define cmdinit(a,b,c,d,e) do{if(_cmd_init(a,b,c,d,e))return -1;}while(0)
#else
#define CMD_CONTEXT(p) (((p)&&((Shbltin_t*)(p))->version>=20071012&&((Shbltin_t*)(p))->version<20350101)?((Shbltin_t*)(p)):0)
#define cmdinit(a,b,c,d,e) do{if((c)&&!CMD_CONTEXT(c))c=0;if(_cmd_init(a,b,c,d,e))return -1;}while(0)
#endif
#if _BLD_cmd && defined(__EXPORT__)
#define extern extern __EXPORT__
#endif
extern int _cmd_init(int, char**, void*, const char*, int);
#undef extern
#endif
#endif
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