36 lines
825 B
C
36 lines
825 B
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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#include <u.h>
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#include <libc.h>
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int
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putenv(const char *name, const char *val)
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{
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int f;
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char ename[100];
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int32_t s;
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if(strchr(name, '/') != nil)
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return -1;
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snprint(ename, sizeof ename, "/env/%s", name);
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if(strcmp(ename+5, name) != 0)
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return -1;
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f = create(ename, OWRITE, 0664);
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if(f < 0)
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return -1;
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s = strlen(val);
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if(write(f, val, s) != s){
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close(f);
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return -1;
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}
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close(f);
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return 0;
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}
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