7.4. S7_SIGINFO_BLK Structure

The S7_SIGINFO_BLK data structure contains ISUP messages as returned by the gc_GetSigInfo( ) function.

The S7_ SIGINFO_BLK structure is defined as follows:

typedef struct { 
  short  length;           /* length of SigInfo block */ 
  unsigned char prim;      /* ISUP primitive */ 
  S7_IE  data;             /* First IE of the message (there may be more) */ 
} S7_SIGINFO_BLK, *S7_SIGINFO_BLK_PTR;  

Table 11. S7_SIGINFO_BLK Structure Fields 

Field	Description
length	Block length, including the "primitive" byte (prim) and the parameters (data).
prim	ISUP primitive (IAM, ANM, REL...)
data	Message parameters, one after the other.

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