71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
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/*
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Routines for dealing with facility messages and their respective
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components (ROSE)
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by Matthew Fredrickson <creslin@digium.com>
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Copyright (C) 2004 Digium, Inc
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*/
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#include "libpri.h"
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#include "pri_internal.h"
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#include "pri_q921.h"
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#include "pri_q931.h"
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#include "pri_facility.h"
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#include <stdlib.h>
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#include <string.h>
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int rose_invoke_decode(q931_call *call, unsigned char *data, int len)
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{
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int i = 0;
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unsigned char *vdata = data;
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struct rose_component *comp = NULL;
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if (len <= 0) return -1;
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/* Invoke ID stuff */
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if (&vdata[i])
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comp = (struct rose_component*)&vdata[i];
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else return -1;
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if (i+1 >= len) return -1;
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if (comp->type && comp->type != ASN1_INTEGER) {
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pri_message("Don't know what to do if first ROSE component is of type 0x%x\n",comp->type);
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return -1;
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}
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i += comp->len + 2;
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/* Operation Tag */
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if (&vdata[i])
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comp = (struct rose_component*)&vdata[i];
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else return -1;
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if (i+1 >= len) return -1;
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if (comp->type && comp->type != ASN1_INTEGER) {
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pri_message("Don't know what to do if second ROSE component is of type 0x%x\n",comp->type);
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return -1;
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}
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i += comp->len + 2;
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if (i >= len)
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return -1;
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/* Arguement Tag */
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if (&vdata[i])
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comp = (struct rose_component*)&vdata[i];
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else return -1;
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if (comp->type) {
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switch (comp->type) {
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case ROSE_NAME_PRESENTATION_ALLOWED_SIMPLE:
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memcpy(call->callername, comp->data, comp->len);
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call->callername[comp->len] = 0;
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return 0;
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default:
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pri_message("Do not handle argument of type 0x%X\n", comp->type);
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return -1;
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}
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} else return -1;
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}
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