DINRPATH requests the return of the path specification for the z/OS® UNIX file associated with the specified allocation.
When you code DINRPATH, # must be 1 and LEN must be at least the length of the pathname and can be longer, and the PARM field must be the length specified by the value in LEN.
If a pathname is associated with the allocation, the system returns the pathname in PARM and its length in LEN.
Example: To request the return of the z/OS UNIX file pathname for ddname MYDD, code:
KEY # LEN PARM
0001 0001 0004 D3 E8 C4 C4
C017 0001 00FF 00 00...00...00...00...
Output: KEY # LEN PARM
C017 0001 0016 61 A4 61 94 A8 A4 89 84 61 94 A8 81 97 97 61 A2 83 99 4B 84 81 A3
The retrieved output indicates that pathname /u/myuid/myapp/scr.dat is associated with MYDD.