User's Manual

SDK SCR-API ______________________________________________ Boomer II User Manual & Integrator’s Guide
Wavenet Technology 156 BM210012WT27
/* initialize message structure */
lmsg.msg_type = SCR_TO_NET; /* send data to client
device */
lmsg.u.tonet.lli = 0xEE021234; /* set device LLI to
send to */
lmsg.u.tonet.ack = SCR_TONET_ACK_NONE; /* no
acknowledgment
*/
lmsg.u.tonet.data_header = “BB1”;
/* Note: On a DataTAC 4000 or 6000 network,
this message */
/* will be routed on host slot 1. On a
DataTAC 5000 */
/* network, the message will be routed on
session 'BB. '*/
/* See Section “Data Header” for further
details. */
lmsg.u.tonet.data.data = ldata;
lmsg.u.tonet.data.len = strlen(ldata);
llen = scr_Encode(lbuffer, &lmsg);
if (llen != SCR_ERROR) {
/* send encoded message to network */
x25_send(. . . [buffer, lien, . . .)
}
else {
/* report an error */
. . .
}
. . .
}

scr_Decode()
Prototype:
int scr_Decode(int l_len, byte *l_buf, SCRMsg *l_msg)
Description
This routine is used to decode an SCR message from a received buffer
and produce an SCRMsg structure representing the received message.
When this routine returns successfully, some memory may have been
allocated within the SCRMsg structure. scr_FreeDecoding() should
always be called after a successful scr_Decode() to free any memory
that may have been allocated. When scr_Decode() returns
SCR_ERROR or 0, scr_FreeDecoding() should not be called.
Input:
 l_len The length of the data contained in l_buf.
 *l_buf The buffer containing received SCR data
 *l_msg The decoded SCRMsg is returned is l_msg. When calling this
function, this parameter must point to an allocated SCRMsg
structure. Refer to "SCR Structures".
Output:
 Return value = 0 Operation was successful but the buffer contains only a partial
SCR message in l_msg.
 Return value < 0 Operation failed. Value SCR_ERROR is returned to indicate an