int
_iodbcdm_list_sections (PCONFIG pCfg, LPSTR lpszRetBuffer, int cbRetBuffer)
{
int curr = 0, sect_len = 0;
lpszRetBuffer[0] = 0;
if (0 == _iodbcdm_cfg_rewind (pCfg))
{
while (curr < cbRetBuffer && 0 == _iodbcdm_cfg_next_section (pCfg)
&& pCfg->section)
{
sect_len = strlen (pCfg->section) + 1;
sect_len =
sect_len > cbRetBuffer - curr ? cbRetBuffer - curr : sect_len;
memmove (lpszRetBuffer + curr, pCfg->section, sect_len);
curr += sect_len;
}
if (curr < cbRetBuffer)
lpszRetBuffer[curr] = 0;
return curr;
}
return 0;
}
int
_iodbcdm_cfg_to_string (PCONFIG pconfig, char *section,
char *buf, size_t buf_sz)
{
BOOL atsection;
if (_iodbcdm_cfg_rewind (pconfig) == -1)
return -1;
atsection = FALSE;
buf[0] = '\0';
while (_iodbcdm_cfg_nextentry (pconfig) == 0)
{
if (atsection)
{
if (_iodbcdm_cfg_section (pconfig))
break;
else if (_iodbcdm_cfg_define (pconfig))
{
if (buf[0] != '\0')
CATBUF (buf, ";", buf_sz);
CATBUF (buf, pconfig->id, buf_sz);
CATBUF (buf, "=", buf_sz);
CATBUF (buf, pconfig->value, buf_sz);
}
}
else if (_iodbcdm_cfg_section (pconfig) &&
!strcasecmp (pconfig->section, section))
atsection = TRUE;
}
return 0;
}
int
_iodbcdm_list_entries (PCONFIG pCfg, LPCSTR lpszSection, LPSTR lpszRetBuffer, int cbRetBuffer)
{
int curr = 0, sect_len = 0;
lpszRetBuffer[0] = 0;
if (0 == _iodbcdm_cfg_rewind (pCfg))
{
while (curr < cbRetBuffer && 0 == _iodbcdm_cfg_nextentry (pCfg))
{
if (_iodbcdm_cfg_define (pCfg)
&& !strcmp (pCfg->section, lpszSection) && pCfg->id)
{
sect_len = strlen (pCfg->id) + 1;
sect_len =
sect_len >
cbRetBuffer - curr ? cbRetBuffer - curr : sect_len;
memmove (lpszRetBuffer + curr, pCfg->id, sect_len);
curr += sect_len;
}
}
if (curr < cbRetBuffer)
lpszRetBuffer[curr] = 0;
return curr;
}
return 0;
}
int
_iodbcdm_cfg_find (PCONFIG pconfig, char *section, char *id)
{
int atsection;
if (!_iodbcdm_cfg_valid (pconfig) || _iodbcdm_cfg_rewind (pconfig))
return -1;
atsection = 0;
while (_iodbcdm_cfg_nextentry (pconfig) == 0)
{
if (atsection)
{
if (_iodbcdm_cfg_section (pconfig))
return -1;
else if (_iodbcdm_cfg_define (pconfig))
{
char *szId = _iodbcdm_remove_quotes (pconfig->id);
int bSame;
if (szId)
{
bSame = !strcasecmp (szId, id);
free (szId);
if (bSame)
return 0;
}
}
}
else if (_iodbcdm_cfg_section (pconfig)
&& !strcasecmp (pconfig->section, section))
{
if (id == NULL)
return 0;
atsection = 1;
}
}
return -1;
}
BOOL INSTAPI
SQLRemoveDriver (LPCSTR lpszDriver, BOOL fRemoveDSN, LPDWORD lpdwUsageCount)
{
/*char *szDriverFile = NULL; */
BOOL retcode = FALSE;
PCONFIG pCfg = NULL, pInstCfg = NULL;
LPSTR entries = (LPSTR) malloc (sizeof (char) * 65535), curr;
int len = 0, i = 0;
/* Check input parameters */
CLEAR_ERROR ();
if (!lpszDriver || !STRLEN (lpszDriver))
{
PUSH_ERROR (ODBC_ERROR_INVALID_NAME);
goto quit;
}
/* Else go through user/system odbcinst.ini */
switch (configMode)
{
case ODBC_BOTH_DSN:
case ODBC_USER_DSN:
wSystemDSN = USERDSN_ONLY;
break;
case ODBC_SYSTEM_DSN:
wSystemDSN = SYSTEMDSN_ONLY;
break;
}
if (_iodbcdm_cfg_search_init (&pCfg, "odbc.ini", FALSE))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
if (_iodbcdm_cfg_search_init (&pInstCfg, "odbcinst.ini", FALSE))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
if (fRemoveDSN)
{
#ifdef WIN32
if (entries &&
(len = _iodbcdm_list_entries (pCfg, "ODBC 32 bit Data Sources",
entries, 65535)))
#else
if (entries
&& (len =
_iodbcdm_list_entries (pCfg, "ODBC Data Sources", entries,
65535)))
#endif
{
for (curr = entries; i < len;
i += (STRLEN (curr) + 1), curr += (STRLEN (curr) + 1))
{
int nCursor = pCfg->cursor;
if (_iodbcdm_cfg_rewind (pCfg))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
#ifdef WIN32
if (_iodbcdm_cfg_find (pCfg, "ODBC 32 bit Data Sources", curr))
#else
if (_iodbcdm_cfg_find (pCfg, "ODBC Data Sources", curr))
#endif
{
if (_iodbcdm_cfg_rewind (pCfg))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
pCfg->cursor = nCursor;
continue;
}
if (!strcmp (pCfg->value, lpszDriver))
{
if (_iodbcdm_cfg_write (pCfg, curr, NULL, NULL))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
#ifdef WIN32
if (_iodbcdm_cfg_write (pCfg, "ODBC 32 bit Data Sources",
curr, NULL))
#else
if (_iodbcdm_cfg_write (pCfg, "ODBC Data Sources", curr,
NULL))
#endif
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
}
pCfg->cursor = nCursor;
}
}
}
if (_iodbcdm_cfg_write (pInstCfg, (char *) lpszDriver, NULL, NULL))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
#ifdef WIN32
if (_iodbcdm_cfg_write (pInstCfg, "ODBC 32 bit Drivers", lpszDriver, NULL))
#else
if (_iodbcdm_cfg_write (pInstCfg, "ODBC Drivers", (LPSTR) lpszDriver, NULL))
#endif
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
if (_iodbcdm_cfg_commit (pCfg) || _iodbcdm_cfg_commit (pInstCfg))
{
PUSH_ERROR (ODBC_ERROR_GENERAL_ERR);
goto done;
}
retcode = TRUE;
done:
if (pCfg)
_iodbcdm_cfg_done (pCfg);
if (pInstCfg)
_iodbcdm_cfg_done (pInstCfg);
if (entries)
free (entries);
quit:
wSystemDSN = USERDSN_ONLY;
configMode = ODBC_BOTH_DSN;
return retcode;
}
