mirror of
git://git.code.sf.net/p/cdesktopenv/code
synced 2025-03-09 15:50:02 +00:00
Windows/Cygwin requires onerous special handling and the definition of additional _imp__* symbols to import/export symbols between dynamically linked binaries. Its support in AST used a lot of macros and code obfuscation. In the features/common test for this, AT&T called this the "Microsoft import/export nonsense". They're right, it's nonsense. Somehow, Microsoft's POSIX layer, SFU/Interix, always managed without it. No one has time to maintain this (especially considering how incredibly sluggish Cygwin is). And in fact, it had already fallen victim to bit rot; I confirmed this in my early experiments with reintroducing dynamic library support. No one has time to fix it, either. So, my apologies to any Cygwin fans; ksh 93u+m will never support dynamically loadable built-ins on Cygwin, even when I do manage to reintroduce dynamic linking properly.
68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/***********************************************************************
|
|
* *
|
|
* This software is part of the ast package *
|
|
* Copyright (c) 1985-2011 AT&T Intellectual Property *
|
|
* Copyright (c) 2020-2022 Contributors to ksh 93u+m *
|
|
* and is licensed under the *
|
|
* Eclipse Public License, Version 1.0 *
|
|
* by AT&T Intellectual Property *
|
|
* *
|
|
* A copy of the License is available at *
|
|
* http://www.eclipse.org/org/documents/epl-v10.html *
|
|
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
|
|
* *
|
|
* 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> *
|
|
* *
|
|
***********************************************************************/
|
|
/*
|
|
* resolvepath implementation
|
|
*/
|
|
|
|
#define resolvepath ______resolvepath
|
|
|
|
#include <ast.h>
|
|
#include <error.h>
|
|
|
|
#undef resolvepath
|
|
|
|
#undef _def_map_ast
|
|
#include <ast_map.h>
|
|
#undef _AST_API_H
|
|
#include <ast_api.h>
|
|
|
|
extern int
|
|
resolvepath(const char* file, char* path, size_t size)
|
|
{
|
|
register char* s;
|
|
register int n;
|
|
register int r;
|
|
|
|
r = *file != '/';
|
|
n = strlen(file) + r + 1;
|
|
if (n >= size)
|
|
{
|
|
#ifdef ENAMETOOLONG
|
|
errno = ENAMETOOLONG;
|
|
#else
|
|
errno = ENOMEM;
|
|
#endif
|
|
return 0;
|
|
}
|
|
if (!r)
|
|
s = path;
|
|
else if (!getcwd(path, size - n))
|
|
return 0;
|
|
else
|
|
{
|
|
s = path + strlen(path);
|
|
*s++ = '/';
|
|
}
|
|
strlcpy(s, file, size - (s - path));
|
|
return (s = pathcanon(path, size, PATH_PHYSICAL|PATH_DOTDOT|PATH_EXISTS)) ? (s - path) : -1;
|
|
}
|