FreeTDS Development Group

[Thomas Stover <thomas AT wsinnovations.com>]

Hi all. I recently discovered FreeTDS, and hoped someone might be able 
to help me out. I'm trying to port a win32-msdblib program to linux so 
that I can debug an unrelated problem with the help of Valgrind. From 
the comments on the FreeTDS homepage about the best source of 
documentation being the MS/sybase docs, I figured that a simple msdblib 
example might be a good place to start. I'm having a few issues with the 
compile phase. Below is a simple windows-msdblib test program I had 
lying around, along with my initial efforts to get this sucker to build 
on Linux. The first problem is that I don't seem to be including the 
correct header for the PDBPROCESS structure. I looked around in the 
FreeTDS headers and saw DBPROCESS all over the place, so I tried a 
"#define PDBPROCESS DBPROCESS" to no avail. The other big thing is that 
I'm going from the MS doc's version of what error and message handlers 
should look like. Clearly that part needs some work. Anyway any help 
pointing me in the right direction would be much appreciate.

#include <stdio.h>
#include <sqlfront.h>
#include <sqldb.h>

int err_handler (PDBPROCESS dbproc, INT severity,
                       INT dberr, INT oserr, LPCSTR dberrstr, LPCSTR 
oserrstr)
{
fprintf(stderr, "DB-Library Error %i: %\ns", dberr, dberrstr);
if (oserr != DBNOERR)
 fprintf(stderr, "Operating System Error %i: %s\n", oserr, oserrstr);

return INT_CANCEL;
}

int msg_handler (PDBPROCESS dbproc, DBINT msgno, INT msgstate,
                         INT severity, LPCSTR msgtext, LPCSTR server,
                         LPCSTR procedure, DBUSMALLINT line)
{
fprintf(stderr, "SQL Server Message %ld: %s\n" , msgno, msgtext);

return 0;
}

int main(void)
{
PDBPROCESS dbproc;
PLOGINREC login;
int ncols, x;
char temp[512];

dberrhandle(err_handler);
dbmsghandle(msg_handler);

dbinit();
login = dblogin();
DBSETLSECURE(login);
DBSETLAPP(login, "dblib experiment program");
dbproc = dbopen(login, "192.168.9.143");

dbcmd(dbproc, "SELECT TOP 1 * From [TestDB] .. TestTable"); 
dbsqlexec(dbproc);
if(dbresults(dbproc) == SUCCEED)
{
 ncols = dbnumcols(dbproc);
 dbbind(dbproc, 1, NTBSTRINGBIND, 0, temp);

 printf("Colum names:\n");
 for(x = 1; x < ncols; x++)
 {
  printf("%s\t", dbcolname(dbproc, x));
 }
 printf("\n");

}

dbfreebuf(dbproc);
dbfreelogin(login);
dbexit();
return 0;
}