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author | Alexander Naumov <alexander_naumov@opensuse.org> | 2023-01-30 17:22:25 +0200 |
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committer | Alexander Naumov <alexander_naumov@opensuse.org> | 2023-01-30 17:22:25 +0200 |
commit | e9ad41bfedb4537a6f0de20f00b27c7739f168f7 (patch) | |
tree | 90f242c2c3dba61a513eae6ed5af8cf6e5d3ae28 | |
parent | 531d09e92a396fb8ee43b05be274fddf14e09baf (diff) | |
download | screen-e9ad41bfedb4537a6f0de20f00b27c7739f168f7.tar.gz |
fix: missing signal sending permission check on failed query messages
Signed-off-by: Alexander Naumov <alexander_naumov@opensuse.org>
-rw-r--r-- | src/socket.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/socket.c b/src/socket.c index 147dc54..54d8cb8 100644 --- a/src/socket.c +++ b/src/socket.c @@ -1285,11 +1285,16 @@ ReceiveMsg() else queryflag = -1; - Kill(m.m.command.apid, + if (CheckPid(m.m.command.apid)) { + Msg(0, "Query attempt with bad pid(%d)!", m.m.command.apid); + } + else { + Kill(m.m.command.apid, (queryflag >= 0) ? SIGCONT : SIG_BYE); /* Send SIG_BYE if an error happened */ - queryflag = -1; + queryflag = -1; + } } break; case MSG_COMMAND: |