1SD_BUS_SET_SENDER(3)           sd_bus_set_sender          SD_BUS_SET_SENDER(3)
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NAME

6       sd_bus_set_sender, sd_bus_get_sender - Configure default sender for
7       outgoing messages
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SYNOPSIS

10       #include <systemd/sd-bus.h>
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12       int sd_bus_set_sender(sd_bus *bus, const char* name);
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14       int sd_bus_get_sender(sd_bus *bus, const char** name);
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DESCRIPTION

17       sd_bus_set_sender() configures the default sender service name to use
18       for outgoing messages. The service name specified in the name parameter
19       is set on all outgoing messages that are sent on the connection and
20       have no sender set yet, for example through
21       sd_bus_message_set_sender(3). Note that this function is only supported
22       on direct connections, i.e. not on connections to a bus broker as the
23       broker will fill in the sender service name automatically anyway. By
24       default no sender name is configured, and hence messages are sent
25       without sender field set. If the name parameter is specified as NULL
26       the default sender service name is cleared, returning to the default
27       state if a default sender service name was set before. If passed as
28       non-NULL the specified name must be a valid unique or well-known
29       service name.
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31       sd_bus_get_sender() may be used to query the current default service
32       name for outgoing messages.
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RETURN VALUE

35       On success, these functions return 0 or a positive integer. On failure,
36       they return a negative errno-style error code.
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38   Errors
39       Returned errors may indicate the following problems:
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41       -ECHILD
42           The bus connection has been created in a different process, library
43           or module instance.
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45       -EPERM
46           The specified bus connection object is a not a direct but a
47           brokered connection.
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NOTES

50       Functions described here are available as a shared library, which can
51       be compiled against and linked to with the libsystemd pkg-config(1)
52       file.
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54       The code described here uses getenv(3), which is declared to be not
55       multi-thread-safe. This means that the code calling the functions
56       described here must not call setenv(3) from a parallel thread. It is
57       recommended to only do calls to setenv() from an early phase of the
58       program when no other threads have been started.
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SEE ALSO

61       systemd(1), sd-bus(3), sd_bus_message_set_sender(3)
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65systemd 254                                               SD_BUS_SET_SENDER(3)
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