Problem with truncating files

[Mervine, Keith]

Greetings,
        I have written a small function to list all skills and levels
the classes receive the skills at in a comma delimited format.

void do_skillcd(CHAR_DATA *ch,char *argument)
{
    char arg1[MIL];
    char buf[MSL];
    int i, sn, skill,class = 0;
    FILE *fp;

    fclose( fpReserve );
    fp = fopen("../data/skillcd.txt", "w" );

    for (sn = 0; sn < MAX_SKILL; sn++)
    {
     sprintf(buf,"%s",skill_table[sn].name);
     fprintf(fp, buf);
     for (i=0; i < MAX_CLASS; i++)
     {
      sprintf(buf,",%d",skill_table[sn].skill_level[i]);
      fprintf(fp, buf);
     }
     sprintf(buf,"\n");
     fprintf(fp,buf);
    }

    send_to_char("Done writing\n\r",ch);
    fpReserve = fopen( NULL_FILE, "r" );
    return;
}

However, about 508 lines into the file im writing (skillcd.txt)  it
stops.  Same place everytime.

**Lines 507 and 508 of output file

dragonsword,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
111,111,111
holy armor,111,111,111,111,111,111,

** End

Is there something wrong with this code?  What am I missing?

Keith Mervine
"Non Omnis Moriar"
"Growing old is mandatory, growing up is optional"
Service Management Application Developer
International Monetary Fund
[EMAIL PROTECTED]
202-623-7610