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att
GitHub Repository: att/ast
 Path: blob/master/src/lib/libast/path/pathsetlink.c
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/***********************************************************************

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*                                                                      *

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*               This software is part of the ast package               *

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*          Copyright (c) 1985-2011 AT&T Intellectual Property          *

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*                      and is licensed under the                       *

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*                 Eclipse Public License, Version 1.0                  *

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*                    by AT&T Intellectual Property                     *

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*                                                                      *

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*                A copy of the License is available at                 *

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*          http://www.eclipse.org/org/documents/epl-v10.html           *

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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

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*                                                                      *

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*              Information and Software Systems Research               *

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*                            AT&T Research                             *

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*                           Florham Park NJ                            *

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*                                                                      *

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*                 Glenn Fowler <[email protected]>                  *

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*                  David Korn <[email protected]>                   *

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*                   Phong Vo <[email protected]>                    *

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*                                                                      *

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***********************************************************************/

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#pragma prototyped

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/*

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* Glenn Fowler

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* AT&T Bell Laboratories

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*/

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#include "univlib.h"

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/*

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 * create symbolic name from external representation text in buf

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 * the arg order matches link(2)

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 */

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int

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pathsetlink(const char* buf, const char* name)

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{

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	register char*	t = (char*)buf;

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#ifdef UNIV_MAX

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	register char*	s = (char*)buf;

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	register char*	v;

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	int		n;

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	char		tmp[PATH_MAX];

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	while (*s)

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	{

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		if (*s++ == univ_cond[0] && !strncmp(s - 1, univ_cond, univ_size))

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		{

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			s--;

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			t = tmp;

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			for (n = 0; n < UNIV_MAX; n++)

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				if (*univ_name[n])

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			{

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				*t++ = ' ';

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#ifdef ATT_UNIV

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				*t++ = '1' + n;

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				*t++ = ':';

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#else

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				for (v = univ_name[n]; *t = *v++; t++);

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				*t++ = '%';

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#endif

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				for (v = (char*)buf; v < s; *t++ = *v++);

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				for (v = univ_name[n]; *t = *v++; t++);

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				for (v = s + univ_size; *t = *v++; t++);

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			}

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			t = tmp;

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			break;

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		}

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	}

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#endif

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	return(symlink(t, name));

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}

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