#define SILC_PACKET_PADLEN_MAX ...
Returns the length of the padding up to the maximum length, which is 128 butes. This is used by various library routines to determine needed padding length.
#define SILC_PACKET_PADLEN_MAX(__packetlen) \ SILC_PACKET_MAX_PADLEN - (__packetlen) % SILC_PACKET_MAX_PADLEN