This example attaches a drive to a remote file system driver (FSD). Assume that the FSD does not require any user-supplied data arguments.

 #define INCL_DOSFILEMGR   /* File Manager values */
 #define INCL_DOSERRORS    /* DOS error values */
 #include <os2.h>
 #include <stdio.h>

int main(VOID) {

 PVOID   pvDataBuffer    = NULL;     /* Arguments for the file system driver */
 APIRET  rc              = NO_ERROR; /* Return code */

    rc = DosFSAttach("Q:",                   /* Drive letter */
                     "\\LAN\\LANTOOLS",      /* Remote file system driver */
                     pvDataBuffer,           /* User-supplied arguments */
                     0,                      /* No arguments supplied */
                     FS_ATTACH);             /* Attach to the file system */

    if (rc != NO_ERROR) {
        printf("DosFSAttach error: return code = %u\n", rc);
        return 1;
    }

    return NO_ERROR;
}