42 lines
848 B
C
42 lines
848 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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postnote(int group, int pid, const char *note)
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{
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char file[128];
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int f, r;
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switch(group) {
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case PNPROC:
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sprint(file, "/proc/%d/note", pid);
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break;
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case PNGROUP:
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sprint(file, "/proc/%d/notepg", pid);
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break;
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default:
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return -1;
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}
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f = open(file, OWRITE);
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if(f < 0)
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return -1;
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r = strlen(note);
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if(write(f, note, r) != r) {
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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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