38 lines
514 B
C
38 lines
514 B
C
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#include <u.h>
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#define NOPLAN9DEFINES
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#include <libc.h>
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#include <signal.h>
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extern int _p9strsig(char*);
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int
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postnote(int who, int pid, char *msg)
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{
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int sig;
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sig = _p9strsig(msg);
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if(sig == 0){
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werrstr("unknown note");
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return -1;
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}
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if(pid <= 0){
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werrstr("bad pid in postnote");
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return -1;
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}
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switch(who){
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default:
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werrstr("bad who in postnote");
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return -1;
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case PNPROC:
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return kill(pid, sig);
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case PNGROUP:
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if((pid = getpgid(pid)) < 0)
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return -1;
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return killpg(pid, sig);
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}
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}
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