sd_bus_message_append_strv — Attach an array of strings to a message
#include <systemd/sd-bus.h>
int sd_bus_message_append_strv( | sd_bus_message *m, | 
char **l); | 
The sd_bus_message_append() function can be
    used to append an array of strings to message
    m. The parameter l
    shall point to a NULL-terminated array of pointers
    to NUL-terminated strings. Each string must
    satisfy the same constraints as described for the
    "s" type in
    sd_bus_message_append_basic(3).
    
The memory pointed at by p and the
    contents of the strings themselves are copied into the memory area
    containing the message and may be changed after this call. Note
    that the signature of l parameter is to be
    treated as const char *const *, and the contents
    will not be modified.
On success, this call returns 0 or a positive integer. On failure, a negative errno-style error code is returned.
These APIs are implemented as a shared
  library, which can be compiled and linked to with the
  libsystemd pkg-config(1)
  file.