75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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/* Portions of this file are Copyright (C) 9front's team.
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* See /doc/license/9front-mit for details about the licensing.
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* See http://git.9front.org/plan9front/plan9front/HEAD/info.html for a list of authors.
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*/
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#include <u.h>
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#include <lib9.h>
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#include <auth.h>
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void
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usage(void)
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{
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fprint(2, "usage: newns [-ad] [-n namespace] [cmd [args...]]\n");
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exits("usage");
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}
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static int
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rooted(char *s)
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{
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if(s[0] == '/')
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return 1;
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if(s[0] == '.' && s[1] == '/')
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return 1;
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if(s[0] == '.' && s[1] == '.' && s[2] == '/')
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return 1;
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return 0;
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}
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void
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main(int argc, char **argv)
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{
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extern int newnsdebug;
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char *defargv[] = { "/cmd/rc", "-i", nil };
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char *nsfile, err[ERRMAX];
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int add;
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sys_rfork(RFNAMEG);
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add = 0;
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nsfile = "/lib/namespace";
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ARGBEGIN{
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case 'a':
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add = 1;
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break;
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case 'd':
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newnsdebug = 1;
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break;
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case 'n':
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nsfile = ARGF();
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break;
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default:
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usage();
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break;
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}ARGEND
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if(argc == 0)
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argv = defargv;
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if (add)
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addns(getuser(), nsfile);
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else
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newns(getuser(), nsfile);
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sys_exec(argv[0], (const char **)argv);
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if(!rooted(argv[0])){
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rerrstr(err, sizeof err);
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sys_exec(smprint("/cmd/%s", argv[0]), (const char **)argv);
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sys_errstr(err, sizeof err);
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}
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sysfatal("exec: %s: %r", argv[0]);
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}
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