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/***********************************************************************
* *
* 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
#include <ast_lib.h>
#if _lib_execvpe
#include <ast.h>
NoN(execvpe)
#else
#if defined(__EXPORT__)
__EXPORT__ int execvpe(const char*, char* const[], char* const[]);
#endif
#include <ast.h>
#include <errno.h>
#if defined(__EXPORT__)
#define extern __EXPORT__
#endif
extern int
execvpe(const char* name, char* const argv[], char* const envv[])
{
register const char* path = name;
char buffer[PATH_MAX];
if (*path != '/' && !(path = pathpath(buffer, name, NULL, PATH_REGULAR|PATH_EXECUTE)))
path = name;
execve(path, argv, envv);
if (errno == ENOEXEC)
{
register char** newargv;
register char** ov;
register char** nv;
for (ov = (char**)argv; *ov++;);
if (newargv = newof(0, char*, ov + 1 - (char**)argv, 0))
{
nv = newargv;
*nv++ = "sh";
*nv++ = (char*)path;
ov = (char**)argv;
while (*nv++ = *++ov);
path = pathshell();
execve(path, newargv, envv);
free(newargv);
}
else
errno = ENOMEM;
}
return -1;
}
#endif
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