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protocol-native: Protect against clients trying to set a NULL port

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For some reason, a badly behaving client was trying to set a NULL
port, which caused PulseAudio to crash. Add safeguards on two levels
just to be protected. (Also remove a redundant check.)

BugLink: https://bugs.launchpad.net/bugs/951273
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
This commit is contained in:
David Henningsson 2012-03-16 14:38:38 +01:00
parent 860d1cf3a7
commit 54cddc6ddf
3 changed files with 3 additions and 3 deletions
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2
src/pulsecore/protocol-native.c
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@ -4699,7 +4699,7 @@ static void command_set_sink_or_source_port(pa_pdispatch *pd, uint32_t command,
CHECK_VALIDITY(c->pstream, !name || pa_namereg_is_valid_name_or_wildcard(name, command == PA_COMMAND_SET_SINK_PORT ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE), tag, PA_ERR_INVALID);
CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || name, tag, PA_ERR_INVALID);
CHECK_VALIDITY(c->pstream, idx == PA_INVALID_INDEX || !name, tag, PA_ERR_INVALID);
CHECK_VALIDITY(c->pstream, !name || idx == PA_INVALID_INDEX, tag, PA_ERR_INVALID);
CHECK_VALIDITY(c->pstream, port, tag, PA_ERR_INVALID);
if (command == PA_COMMAND_SET_SINK_PORT) {
pa_sink *sink;