In the 2nd argument of fopen, the keyword parameters come after the mode.
Try it with just "w" or "w, recfm=fba".
Bill
On Fri, 6 Mar 2009 23:21:41 -0500, Lorne Dudley wrote:
>Hi Bill (or any other C programmer) !
>
>OK, perror("dd:OUTF"); gives me
>
>EDC5057I The open mode string was invalid. Explanation: The mode string
>passed to the fopen()/freopen() function was found to have invalid
>keywords, combinations, or characters. For example, if you are opening a
>ddname, be sure the DISP= specified on the DD statement is compatible
>with the open mode you specified. Programmer response: Correct the mode
>string and reissue the fopen()/freopen().
>
>I'm not much wiser with this explanation.
>
>I know that if I use only
>outf = fopen("dd:OUTF","w+");
>and
>//OUTF DD DISP=OLD,DSN=SYS2#.C.OUTF
>
>the program executes properly with zero return code.
>In this case the OUTF file is on disk with recfm=vb, lrecl=1028,
>blksize=6144.
>
>So I'm still in the dark as to how to get this to write to SYSOUT=A.
>
>Regards
>
>Lorne
>
>On Fri, 6 Mar 2009 21:29:17 -0500, Lorne Dudley wrote:
>
> > >I'm a novice trying to get a simple C program running under MVS.
> > >
> > >I'm attempting to get file output to
> > >//OUTF DD SYSOUT=A
> > >with the following program.
> > >
> > >#include <stdio.h>
> > >int main(void)
> > >{
> > > FILE *outf = NULL;
> > > printf("TESTFILE has been entered.\n");
> > > outf = fopen("dd:OUTF","recfm=fba, w+");
> > > if (!outf)
> > > {
>
> perror("dd:OUTF");
>
> > > printf("fopen error on FILE *outf.\n");
> > > return 4;
> > > }
> > > fprintf(outf, "outf open ...\n");
> > > fclose(outf);
> > > return 0;
> > >}
> > >
> > >So far, with many variations to the fopen string, I get only the
> > >following output on SYSPRINT, no output to OUTF.
> > >
> > >TESTFILE has been entered.
> > >fopen error on FILE *outf.
> > >
> > >Can anyone give me some advice on how to code this correctly ?
> > >
>
>The "perror" function might give you more information about why fopen is
>failing. See above.
>
>Bill
>
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