FreeCalypso > hg > freecalypso-tools
view uptools/libcoding/sms_submit.c @ 797:ef501e258036
doc/opt-freecalypso-tree: add sim-data and sim-scripts
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 19 Mar 2021 06:17:58 +0000 |
parents | d1fa771abeb8 |
children |
line wrap: on
line source
/* * This library module implements the function for constructing outgoing * SMS-SUBMIT PDUs. */ #include <sys/types.h> #include <strings.h> make_sms_submit_pdu(da, pid, dcs, textsrc, textlen, udh, udhl, outbuf) u_char *da, *textsrc, *udh, *outbuf; unsigned textlen, udhl; { u_char *outp = outbuf; unsigned addr_field_len; unsigned udh_octets, udh_chars; u_char ud7[160]; unsigned udl, udl_octets; if (udh) *outp++ = 0x41; else *outp++ = 0x01; *outp++ = 0; addr_field_len = ((da[0] + 1) >> 1) + 2; bcopy(da, outp, addr_field_len); outp += addr_field_len; *outp++ = pid; *outp++ = dcs; if (udh) { udh_octets = udhl + 1; udh_chars = (udh_octets * 8 + 6) / 7; } else { udh_octets = 0; udh_chars = 0; } udl = udh_chars + textlen; *outp++ = udl; udl_octets = (udl * 7 + 7) / 8; bzero(ud7, 160); bcopy(textsrc, ud7 + udh_chars, textlen); gsm7_pack(ud7, outp, udl_octets); if (udh) { *outp = udhl; bcopy(udh, outp + 1, udhl); } outp += udl_octets; return (outp - outbuf); }