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GitHub Repository: att/ast
 Path: blob/master/src/lib/libast/obsolete/spawn.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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 * OBSOLETE 20030321 -- use spawnveg()

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 */

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#include <ast_lib.h>

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#if !_lib_spawnve

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#define spawnve		______spawnve

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#endif

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#if !_lib_spawnvpe

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#define spawnvpe	______spawnvpe

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#endif

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#if !_lib_spawnvp

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#define spawnvp		______spawnvp

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#endif

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#if !_lib_spawnlp

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#define spawnlp		______spawnlp

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#endif

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#include <ast.h>

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#include <error.h>

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#if !_lib_spawnve

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#undef	spawnve

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#endif

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#if !_lib_spawnvpe

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#undef	spawnvpe

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#endif

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#if !_lib_spawnvp

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#undef	spawnvp

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#endif

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#if !_lib_spawnlp

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#undef	spawnlp

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#endif

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#if defined(__EXPORT__)

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#define extern	__EXPORT__

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#endif

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#if _lib_spawnve

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NoN(spawnve)

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#else

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extern pid_t

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spawnve(const char* cmd, char* const argv[], char* const envv[])

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{

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	return spawnveg(cmd, argv, envv, 0);

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}

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#endif

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#if _lib_spawnvpe

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NoN(spawnvpe)

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#else

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extern pid_t

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spawnvpe(const char* name, char* const argv[], char* const envv[])

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{

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	register const char*	path = name;

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	pid_t			pid;

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	char			buffer[PATH_MAX];

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	if (*path != '/')

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		path = pathpath(name, NULL, PATH_REGULAR|PATH_EXECUTE, buffer, sizeof(buffer));

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	if ((pid = spawnve(path, argv, envv)) >= 0)

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		return pid;

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	if (errno == ENOEXEC)

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	{

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		register char**	newargv;

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		register char**	ov;

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		register char**	nv;

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		for (ov = (char**)argv; *ov++;);

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		if (newargv = newof(0, char*, ov + 1 - (char**)argv, 0))

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		{

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			nv = newargv;

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			*nv++ = "sh";

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			*nv++ = (char*)path;

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			ov = (char**)argv;

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			while (*nv++ = *++ov);

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			path = pathshell();

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			pid = spawnve(path, newargv, environ);

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			free(newargv);

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		}

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		else

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			errno = ENOMEM;

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	}

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	return pid;

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}

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#endif

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#if _lib_spawnvp

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NoN(spawnvp)

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#else

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extern pid_t

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spawnvp(const char* name, char* const argv[])

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{

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	return spawnvpe(name, argv, environ);

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}

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#endif

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#if _lib_spawnlp

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NoN(spawnlp)

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#else

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extern pid_t

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spawnlp(const char* name, const char* arg, ...)

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{

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	va_list	ap;

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	pid_t	pid;

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	va_start(ap, arg);

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	pid = spawnvp(name, (char* const*)&arg);

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	va_end(ap);

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	return pid;

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}

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#endif

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