Solved

Check for file in folder

Posted on 2006-11-06
5
677 Views
Last Modified: 2008-01-09
Hello,

I need to check for the existance of a file in a folder.  Is there a CHKOBJ type command to this?

Thanks Ahead.......
0
Comment
Question by:tcfrey
  • 2
5 Comments
 
LVL 13

Accepted Solution

by:
samic400 earned 125 total points
ID: 17884492
This is code I believe I used to do the same thing you are asking for -

Q. For objects in the QSYS.LIB system, I can use CHKOBJ to determine
command existence. What is the equivalent for items in the IFS?

A. Here are two solutions, one in RPG IV and one in CL.

(a) RPG IV program FileExists:

 * NOTE: Compile with DFTACTGRP(*NO)
 *
 * IFS API prototypes
 *
 * Access
 *
Daccess           PR            10I 0 extproc('access')
Dpathptr1                         *   value
Dmode1                          10I 0 value
 *
 * IFS API Constants
 *
DF_OK             S             10I 0 inz(0)
 *
 * Some working environment for us
 *
DFile_exists      S             10I 0
Dpathptr          S               *
Dpathname         S             21
DExists           C                   'File Exists'
DNotExists        C                   'File does not exist'
 *
 * Main{}
 *
C     *entry        plist
C                   parm                    filename         20
 * Set a character pointer to the file name string
C                   eval      pathname = %trim(filename)+x'00'
C                   eval      pathptr = %addr(pathname)
 * Call the IFS API
C                   eval      File_Exists = access(pathptr:F_OK)
 * Did we find it?
C     File_exists   ifeq      0
C     Exists        dsply
C                   else
C     NotExists     dsply
C                   endif
 * That's all, folks
C                   move      *on           *inlr

The filename should be supplied as //dir/dir/file, so a valid call
would be:

CALL FILEEXISTS ('//etc/pmap')


(b) The ChkIfsObj command is

CMD        PROMPT('Validate an IFS Object')

PARM       KWD(OBJECT) TYPE(*PNAME) LEN(256) MIN(1) +
             EXPR(*YES) PROMPT('IFS object')

The ChkIfsObj command uses CL program ChkIfsObjC, shown below:

PGM        PARM(&PARM)

DCL        VAR(&PARM)      TYPE(*CHAR) LEN(256)
DCL        VAR(&RTNVALINT) TYPE(*CHAR) LEN(4)
DCL        VAR(&RTNVAL)    TYPE(*CHAR) LEN(2)
DCL        VAR(&PATH)      TYPE(*CHAR) LEN(100)
DCL        VAR(&NULL)      TYPE(*CHAR) LEN(1) VALUE(X'00')
DCL        VAR(&BUF)       TYPE(*CHAR) LEN(4096)

CHGVAR     VAR(&PATH) VALUE(&PARM *TCAT &NULL)

CALLPRC    PRC('stat') PARM(&PATH &BUF) +
             RTNVAL(%BIN(&RTNVALINT 1 4))

CHGVAR     VAR(&RTNVAL) VALUE(%BIN(&RTNVALINT))

IF         COND(&RTNVAL *NE '00') THEN(SNDPGMMSG +
             MSGID(CPF9897) MSGF(QCPFMSG) +
             MSGDTA('Object ' || &PARM |< ' not +
             found.') MSGTYPE(*ESCAPE))

ENDPGM

FileExists was written by Nick Roux
ChkIfsObj and ChkIfsObjC was written by David Leland
0
 
LVL 1

Author Comment

by:tcfrey
ID: 17901559

I tried to compile the CL above.  It says definition was not found for reference STAT
Is there somethins else I need to declare in the cl?

Thanks
0
 
LVL 13

Expert Comment

by:samic400
ID: 17906804
First, need to make sure that the source member is a CLLE type, not CLP.

Secondly, need to ensure that when you copy the code above that STAT is all lower case. This is probably your problem, it cannot find STAT in uppercase because it is case sensitive and can only be found as stat.

Thirdly, compile the source as CRTCLMOD

Last, CRTPGM and you should be all set.
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

When you have clients or friends from around the world, it becomes a challenge to arrange a meeting or effectively manage your time. This is where Outlook's capability to show 2 time zones in one calendar comes in handy.
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question