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| author | Lennart Poettering <lennart@poettering.net> | 2013-11-11 23:42:30 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2013-11-12 00:12:44 +0100 |
| commit | a8a07f892c6f64d88a9848deed56a9f3b778301a (patch) | |
| tree | 39814b30c11c8ee5cf1ec68f3498927fc800a11e | |
| parent | 1fee9de5096fe9955b89523aedecf8962ab0e8c5 (diff) | |
bus: detect blocking message calls to our own connection and return ELOOP early
| -rw-r--r-- | src/libsystemd-bus/sd-bus.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/libsystemd-bus/sd-bus.c b/src/libsystemd-bus/sd-bus.c index 3ecda17fce..89437c161c 100644 --- a/src/libsystemd-bus/sd-bus.c +++ b/src/libsystemd-bus/sd-bus.c @@ -1637,6 +1637,19 @@ _public_ int sd_bus_call( sd_bus_message_unref(incoming); return -EIO; + + } else if (incoming->header->serial == serial && + bus->unique_name && + incoming->sender && + streq(bus->unique_name, incoming->sender)) { + + /* Our own message? Somebody is trying + * to send its own client a message, + * let's not dead-lock, let's fail + * immediately. */ + + sd_bus_message_unref(incoming); + return -ELOOP; } /* There's already guaranteed to be room for |