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lib9: reject postnote with special pids

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This commit is contained in:
Russ Cox 2021-01-14 09:59:03 -05:00
parent fdcf3d70c2
commit 0cc1faf015
1 changed files with 5 additions and 0 deletions
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5
src/lib9/postnote.c
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@ -18,6 +18,11 @@ postnote(int who, int pid, char *msg)
return -1; return -1;
} }
if(pid <= 0){
werrstr("bad pid in postnote");
return -1;
}
switch(who){ switch(who){
default: default:
werrstr("bad who in postnote"); werrstr("bad who in postnote");