External DB Description .. [C400-L] ifs help

["Hatzenbeler, Tim" <thatzenbeler@xxxxxxxxxxxxx>]

I have now, gotten past reading all the files in a directory, and placing
the data into fields...  I now want to write to a externally described
database file...

>From the archives I have seen, the #Pragma mapinc, OR the GENCSRC to include
external files..

Whats the best way?  The text I have seen recommends GENCSRC for versions
5.1 and higher.  But I like the #pragma idea more...

Any thoughs, were at version 5.2

Thanks, tim



> -----Original Message-----
> From: c400-l-bounces@xxxxxxxxxxxx [SMTP:c400-l-bounces@xxxxxxxxxxxx] On
> Behalf Of James Rich
> Sent: Wednesday, September 29, 2004 3:23 PM
> To:   C programming iSeries / AS400
> Subject:      Re: [C400-L] ifs help
> 
> On Tue, 28 Sep 2004, Hatzenbeler, Tim wrote:
> 
> > I'm trying to use our C compiler for the 1st time...
> >
> > I would like to write a program, to read all the 'filenames' in a single
> > directory in the IFS, and then open each file, I I would like to parse
> it,
> > and place the contents in a 'Table' I was wondering if any body has any
> code
> > snippets they sould share to get my feet wet...  I haven't touched 'C'
> code
> > in 10 years sine the Amiga.
> 
> Sorry to take so long to respond.  Here is some code to get you started:
> 
> /* This program demonstrates using C to change directories
>   * and list the files in a directory
>   */
> 
> #include <stdio.h>
> #include <string.h>
> #include <unistd.h>
> #include <sys/types.h>
> #include <dirent.h>
> 
> /* Define this to be the directory you want to change to */
> #define NEW_DIR "/home"
> 
> int
> main ()
> {
>    char dir[1024];
>    DIR *directory;
>    struct dirent *entries;
> 
>    /* First we demonstrate how to get the current directory
>     * Notice that getcwd() returns a *char and dir also contains
>     * the name of the directory
>     */
>    printf ("pwd = %s\n", getcwd (dir, sizeof (dir)));
>    printf ("dir = %s\n", dir);
> 
>    /* Change to NEW_DIR and check for errors */
>    if (chdir (NEW_DIR) != 0)
>      {
>        printf ("Eek! cannot chdir to %s\n", NEW_DIR);
>        return (-1);
>      }
> 
>    /* Here we erase dir since we are going to call getcwd() again
>     * to prove that chdir() worked.
>     */
> /*bzero (dir, sizeof (dir));*/
>    printf ("The files in %s are:\n", getcwd (dir, sizeof (dir)));
> 
>    /* Now open the directory we just changed to. */
>    directory = opendir (NEW_DIR);
> 
>    /* Use a loop to print out all the files in the directory. */
>    while ((entries = readdir (directory)) != NULL)
>      {
>        printf ("%s\n", entries->d_name);
>      }
> 
>    /* Don't forget to close! */
>    closedir (directory);
> 
>    /* Done */
>    return (0);
> }
> 
> James Rich
> 
> Vs lbh cynl n Zvpebfsg PQ  onpxjneqf, lbh pna urne fngnavp zrffntrf. Ohg
> rira jbefr, vs lbh cynl vg sbejneq, vg vafgnyyf gurve fbsgjner!
>          -- Fcbgvphf ba /.
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