Trailing-Edge
-
PDP-10 Archives
-
tops10_tools_bb-fp64a-sb
-
10,7/decnet/nodnam/getnod.for
There are 3 other files named getnod.for in the archive. Click here to see a list.
Program GETNODES
C GETNODES.FOR -- Generate NCP commands for TOPS-10
C 7 Sep 84 /RLC
C
C This program will read the VAX DECnet permanent database,
C extract node records containing node numbers and names,
C and create NCP commands of the form SET NODE n NAME foo.
C
C The output file is suitable for processing by DECnet-36's
C NCP, or by the DECnet-36 tool NODNAM.
C Revision History
C 7-Sep-84 1.0 RLC Creation.
C 11-Sep-84 1.1 TL Cosmetic edits, comments, and performance.
C 13-Sep-84 1.2 TL Support Decnet version 4 file format
Character*10 version
data version/'1.2'/
Integer l,nod_area,nod_number,nod_start,nod_finish,ptr,tmp,rec_num,
1 errs,packets,param_type,byte_count,ptr2,DECnet_version
Integer two_bytes
Integer nod_chrs(256)
Character nod_str*256, old_nod_nam*6
Real area_node
Logical val_found
Common /string/nod_chrs
C
C Define us a function for getting 16-bit quantities:
C
TWO_BYTES(i) = nod_chrs(i) + 256 * nod_chrs(i+1)
Type 50, Version
50 Format(1x,'Getnodes Version ',A10,/)
Type 55
55 Format(1x,'DECnet version (3 or 4): ',$)
Accept 60, DECnet_version
60 Format (I)
If(DECnet_version .eq. 3 .or. DECnet_version .eq. 4) goto 70
type 65
65 Format (1x,'?Unknown version')
call exit
70 Open (unit=20,file='SYS$SYSTEM:NETNODE.DAT', organization='INDEXED',
1 access='SEQUENTIAL',iostat=io,err=9000,status='OLD',
2 blank='ZERO')
Open (unit=21,file='NODNAM.INI',carriagecontrol='LIST',
1 status='NEW')
Type 80
80 Format(/)
rec_num = 0
errs = 0
old_nod_nam = ' '
100 Read(20,110,end=1000,err=9100)l,nod_str
110 Format(Q,A256)
rec_num = rec_num + 1
packets = 0
C Copy character data as unsigned bytes to integers
Do 150 i = l,1,-1
150 nod_chrs(i) = ICHAR(nod_str(i: i))
C Skip the RMS keys. Different for different DECnet versions.
ptr = 2 + 1
If(DECnet_version .eq. 4) ptr = 10 + 1
C Type 160,l,(nod_chrs(i),i=1,l)
C160 Format(' Len:',I3,130(' ',12O4,/))
C Now, loop over the input record. Format is a series of
C packets, each contains Param_type (decimal network management
C parameter type code), Byte_count (number of bytes in value),
C and the value. Numbers are all in DECnet format - low byte
C first. Numbers that are values are an arbitrary number of
C bytes long. Param_types and Byte_counts are 2 bytes long.
C ASCII is simple counted ASCII, low byte is left end of string.
C First, make sure that there is at least a type and a byte
C count left in the record. If not, quit.
200 If(Ptr + 2 + 2 .gt. l) Goto 650
C If we now have 2 packets, no need to look at rest.
C (This assumes that each only appears at most once.)
If(packets .eq. 2) Goto 700
C Extract paramater type and byte count of value
param_type = TWO_BYTES(ptr)
ptr = ptr + 2
byte_count = TWO_BYTES(ptr)
C Check for node name
If(param_type .eq. 500) Goto 400
C Check for node address (number)
If(param_type .eq. 502) Goto 500
C Not interesting, Skip past this packet, continue with record.
ptr = ptr + 2 + byte_count
Goto 200
C
C Here if packet 500 (node name)
C
400 nod_name_size = byte_count
If(nod_name_size .eq. 0) Goto 9400
nod_start = ptr + 2
nod_finish = ptr + 1 + byte_count
C Store node name, update ptr, check for eo$;
Goto 600
C
C Here if packet 502 (node number)
C
500 Call Get_Value(ptr,val_found,i)
If(.not. val_found) Goto 9500
C Node number is 6 bit area number + 10 bit node number
nod_area = i / 1024
nod_number = i .AND. 1023
C This gives the number of digits in the node number
nod_num_size = ALOG10(FLOAT(nod_number)) + 1.0
C Store node number & area, update ptr, check for eo$;
Goto 600
C Check eo$ here;
C First, we skip the value field of the last packet
600 ptr = ptr + 2 + byte_count
C Keep track of how many we've found
C If we don't have both yet, go look some more
packets = packets + 1
If(packets .lt. 2) Goto 200
C Here when the end of record is reached, or both found
C Complain if we don't have the data we want
650 If(packets .lt. 2) Goto 9200
C We have the data. Figure how to format it. The 'index'
C is a two-dimensional table of node number size by node name size.
700 index = (nod_name_size - 1) * 4 + nod_num_size - 1
C Save a copy of the last node name seen for errors
old_nod_nam = nod_str(nod_start: nod_finish)
C Zero doesn't work with computed GOTO
If(index .eq. 0) Goto 7110
C Dispatch on format code
Goto (7120,7130,7140,7210,7220,7230,7240,7310,7320,7330,7340,
1 7410,7420,7430,7440,7510,7520,7530,7540,7610,7620,7630,7640) index
C Node number 1, Node name 1
7110 If(nod_area .eq. 0) Goto 7117
Write(21,7115)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7115 Format('Set node',I3,'.',I1,' name ',A1)
7117 Write(21,7116) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7116 Format('Set node ',I1,' name ',A1)
C Node number 2, Node name 1
7120 If(nod_area .eq. 0) Goto 7127
Write(21,7125)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Go to 100
7125 Format('Set node',I3,'.',I2,' name ',A1)
7127 Write(21,7126) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7126 Format('Set node ',I2,' name ',A1)
C Node number 3, Node name 1
7130 If(node_area .eq. 0) Goto 7137
Write(31,7135)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7135 Format('Set node',I3,'.',I3,' name ',A1)
7137 Write(31,7136) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7136 Format('Set node ',I3,' name ',A1)
C Node number 4, Node name 1
7140 If(nod_area .eq. 0) Goto 7147
Write(21,7145)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7145 Format('Set node',I3,'.',I4,' name ',A1)
7147 Write(21,7146) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7146 Format('Set node ',I4,' name ',A1)
C Node number 1, Node name 2
7210 If(nod_area .eq. 0) Goto 7217
Write(21,7215)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7215 Format('Set node',I3,'.',I1,' name ',A2)
7217 Write(21,7216) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7216 Format('Set node ',I1,' name ',A2)
C Node number 2, Node name 2
7220 If(nod_area .eq. 0) Goto 7227
Write(21,7225)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7225 Format('Set node',I3,'.',I2,' name ',A2)
7227 Write(21,7226) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7226 Format('Set node ',I2,' name ',A2)
C Node number 3, Node name 2
7230 If(nod_area .eq. 0) Goto 7237
Write(21,7235)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7235 Format('Set node',I3,'.',I3,' name ',A2)
7237 Write(21,7236) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7236 Format('Set node ',I3,' name ',A2)
C Node number 4 Node name 2
7240 If(nod_area .eq. 0) Goto 7247
Write(21,7245)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7245 Format('Set node',I3,'.',I4,' name ',A2)
7247 Write(21,7246) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7246 Format('Set node ',I4,' name ',A2)
C Node number 1 Node name 3
7310 If(nod_area .eq. 0) Goto 7317
Write(21,7315)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7315 Format('Set node',I3,'.',I1,' name ',A3)
7317 Write(21,7316) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7316 Format('Set node ',I1,' name ',A3)
C Node number 2 Node name 3
7320 If(nod_area .eq. 0) Goto 7327
Write(21,7325)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7325 Format('Set node',I3,'.',I2,' name ',A3)
7327 Write(21,7326) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7326 Format('Set node ',I2,' name ',A3)
C Node number 3 Node name 3
7330 If(nod_area .eq. 0) Goto 7337
Write(21,7335)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7335 Format('Set node',I3,'.',I3,' name ',A3)
7337 Write(21,7336) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7336 Format('Set node ',I3,' name ',A3)
C Node number 4 Node name 3
7340 If(nod_area .eq. 0) Goto 7347
Write(21,7345)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7345 Format('Set node',I3,'.',I4,' name ',A3)
7347 Write(21,7346) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7346 Format('Set node ',I4,' name ',A3)
C Node number 1 Node name 4
7410 If(nod_area .eq. 0) Goto 7417
Write(21,7415)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7415 Format('Set node',I3,'.',I1,' name ',A4)
7417 Write(21,7416) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7416 Format('Set node ',I1,' name ',A4)
C Node number 2 Node name 4
7420 If(nod_area .eq. 0) Goto 7427
Write(21,7425)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7425 Format('Set node',I3,'.',I2,' name ',A4)
7427 Write(21,7426) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7426 Format('Set node ',I2,' name ',A4)
C Node number 3 Node name 4
7430 If(nod_area .eq. 0) Goto 7437
Write(21,7435)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7435 Format('Set node',I3,'.',I3,' name ',A4)
7437 Write(21,7436) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7436 Format('Set node ',I3,' name ',A4)
C Node number 4 Node name 4
7440 If(nod_area .eq. 0) Goto 7447
Write(21,7445)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7445 Format('Set node',I3,'.',I4,' name ',A4)
7447 Write(21,7446) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7446 Format('Set node ',I4,' name ',A4)
C Node number 1 Node name 5
7510 If(nod_area .eq. 0) Goto 7517
Write(21,7515)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7515 Format('Set node',I3,'.',I1,' name ',A5)
7517 Write(21,7516) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7516 Format('Set node ',I1,' name ',A5)
C Node number 2 Node name 5
7520 If(nod_area .eq. 0) Goto 7527
Write(21,7525)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7525 Format('Set node',I3,'.',I2,' name ',A5)
7527 Write(21,7526) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7526 Format('Set node ',I2,' name ',A5)
C Node number 3 Node name 5
7530 If(nod_area .eq. 0) Goto 7537
Write(21,7535)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7535 Format('Set node',I3,'.',I3,' name ',A5)
7537 Write(21,7536) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7536 Format('Set node ',I3,' name ',A5)
C Node number 4 Node name 5
7540 If(nod_area .eq. 0) Goto 7547
Write(21,7545)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7545 Format('Set node',I3,'.',I4,' name ',A5)
7547 Write(21,7546) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7546 Format('Set node ',I4,' name ',A5)
C Node number 1 Node name 6
7610 If(nod_area .eq. 0) Goto 7617
Write(21,7615)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7615 Format('Set node',I3,'.',I1,' name ',A6)
7617 Write(21,7616) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7616 Format('Set node ',I1,' name ',A6)
C Node number 2 Node name 6
7620 If(nod_area .eq. 0) Goto 7627
Write(21,7625)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7625 Format('Set node',I3,'.',I2,' name ',A6)
7627 Write(21,7626) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7626 Format('Set node ',I2,' name ',A6)
C Node number 3 Node name 6
7630 If(nod_area .eq. 0) Goto 7637
Write(21,7635)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7635 Format('Set node',I3,'.',I3,' name ',A6)
7637 Write(21,7636) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7636 Format('Set node ',I3,' name ',A6)
C Node number 4 Node name 6
7640 If(nod_area .eq. 0) Goto 7647
Write(21,7645)nod_area, nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7645 Format('Set node',I3,'.',I4,' name ',A6)
7647 Write(21,7646) nod_number,
1 (nod_str(nod_start: nod_finish))
Goto 100
7646 Format('Set node ',I4,' name ',A6)
C End of file -- close up shop...
1000 Close (unit=20)
Close (unit=21)
Write(6,1010)rec_num,errs
1010 Format(' %Total of ',I5,' records read; ',I3,' errors.')
Goto 9999
C Error messages here...
9000 Write(6,9010)io
9010 Format(' %Error opening SYS$SYSTEM:NETNODE.DAT for input',/,
1 '% Error code = ',I10)
Goto 9999
9100 rec_num = rec_num + 1
errs = errs + 1
Write(6,9110)
9110 Format(' %Error getting record number',I5,/,
1 ' %Previous node name is ',A6)
errs = errs + 1
Goto 100
9200 Write(6,9210) rec_num,nod_str,(nod_chrs(i),i=1,24)
9210 Format(' %Missing packet(s) in record #',
1 I4,': "',A24,'"',/,5X,18I4,/,5X,6I4,/,' % Ignoring this record...')
errs = errs + 1
Goto 100
9400 Write(6,9410) rec_num, nod_str, (nod_chrs(i),i=1,l)
9410 Format(' % Null node name in record #',I4,': "',A24,'"',/,
5X,18I4,/,5X,6I4,/,' % Ignoring this record...')
errs = errs + 1
Goto 100
9500 Write(6,9510) rec_num, nod_str, (nod_chrs(i),i=1,l)
9510 Format(' % Null node number in record #',I4,': "',A24,'"',/,
5X,18I4,/,5X,6I4,/,' % Ignoring this record...')
errs = errs + 1
Goto 100
9999 Stop
End
C Subroutine to read a DECnet extensible integer
Subroutine Get_Value(byte_ptr,value_found,value)
Integer byte_ptr,value
Integer byte_array(256)
Common /string/byte_array
Logical value_found
Integer size
value_found = .false.
value = 0
C size = TWO_BYTES(byte_ptr) !Count of bytes in the integer
size = byte_array(byte_ptr) + 256 * byte_array(byte_ptr+1)
If(size .eq. 0) Goto 9999
C Bytes are stored lo to hi order. Loop from hi to lo.
Do 100 i = size, 1, -1
100 value = (value * 256) + byte_array(byte_ptr + 1 + i)
value_found = .true.
9999 Return
End