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/*
* bif_uuencode.c
*
* $Id$
*
* Build in Functions for UU, XX, Base64, MIME-PlainText and
* MIME-QuotedPrintable encodings
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2018 OpenLink Software
*
* This project is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License, dated June 1991.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "uuencode_impl.h"
#include "libutil.h"
#include "sqlnode.h"
#include "sqlbif.h"
#include "wi.h"
caddr_t
bif_uuencode (caddr_t * qst, caddr_t * err_ret, state_slot_t ** args)
{
caddr_t input = bif_arg (qst, args, 0, "uuencode");
long uuenctype = (long) bif_long_arg (qst, args, 1, "uuencode");
long maxlinespersection = (long) bif_long_arg (qst, args, 2, "uuencode");
dtp_t input_dtp = DV_TYPE_OF (input);
caddr_t res = NULL;
switch (input_dtp)
{
case DV_BLOB_HANDLE:
{
input = blob_to_string (((query_instance_t *) qst)->qi_trx, input);
qst_set (qst, args[0], input);
input_dtp = DV_TYPE_OF (input);
break;
}
case DV_STRING:
case DV_STRING_SESSION:
break;
default:
sqlr_new_error ("22023", "UUE01",
"Function uuencode needs a string output or a string as argument 1, not an arg of type %s (%d)",
dv_type_title (input_dtp), input_dtp);
}
switch (uuenctype)
{
case UUENCTYPE_NATIVE:
case UUENCTYPE_XX:
case UUENCTYPE_BASE64_UNIX:
case UUENCTYPE_BASE64_WIDE:
case UUENCTYPE_BINHEX:
case UUENCTYPE_PLAINTEXT:
case UUENCTYPE_MIME_QP_TXT:
case UUENCTYPE_MIME_QP_BIN:
break;
default:
sqlr_new_error ("22003", "UUE02", "Unsupported type of UU-encoding (%ld)", uuenctype);
}
if (DV_STRING_SESSION == input_dtp)
{
int failed = 0;
IO_SECT (qst);
CATCH_READ_FAIL ((dk_session_t *)input)
{
uu_encode_string_session (&res, (dk_session_t *)input, uuenctype, maxlinespersection);
}
FAILED
{
failed = 1;
}
END_READ_FAIL ((dk_session_t *)input)
END_IO_SECT (err_ret);
if (failed)
{
dk_free_tree (res);
sqlr_new_error ("22003", "UUE10", "Error reading source data of UU-encoding (%ld)", uuenctype);
}
}
else
uu_encode_string (&res, input, uuenctype, maxlinespersection);
return res;
}
caddr_t
bif_uuvalidate (caddr_t * qst, caddr_t * err_ret, state_slot_t ** args)
{
caddr_t string = bif_string_arg (qst, args, 0, "uuvalidate");
long uuenctype = ((BOX_ELEMENTS(args) > 1) ? (long) bif_long_arg (qst, args, 1, "uuvalidate") : 0);
int bhflag = ((BOX_ELEMENTS(args) > 2) ? (int) bif_long_arg (qst, args, 2, "uuvalidate") : 0);
int bug_count = 0;
int res;
switch (uuenctype)
{
case UUENCTYPE_UNKNOWN:
case UUENCTYPE_NATIVE:
case UUENCTYPE_XX:
case UUENCTYPE_BASE64_UNIX:
case UUENCTYPE_BASE64_WIDE:
case UUENCTYPE_BINHEX:
break;
default:
sqlr_new_error ("22003", "UUV01", "Unsupported type of UU-encoding (%ld)", uuenctype);
}
res = uu_validate_encoding ((unsigned char *)string, uuenctype, &bhflag, &bug_count);
return box_num (res);
}
caddr_t
bif_uudecode (caddr_t * qst, caddr_t * err_ret, state_slot_t ** args)
{
caddr_t string = bif_string_arg (qst, args, 0, "uudecode");
long uuenctype = (long) bif_long_arg (qst, args, 1, "uudecode");
caddr_t boundary = ((BOX_ELEMENTS(args) > 2) ? bif_string_arg (qst, args, 2, "uudecode") : NULL);
caddr_t input, out = NULL;
uu_ctx_t ctx;
switch (uuenctype)
{
case UUENCTYPE_UNKNOWN:
case UUENCTYPE_NATIVE:
case UUENCTYPE_XX:
case UUENCTYPE_BASE64_UNIX:
case UUENCTYPE_BASE64_WIDE:
case UUENCTYPE_BINHEX:
case UUENCTYPE_PLAINTEXT:
case UUENCTYPE_MIME_QP_TXT:
case UUENCTYPE_MIME_QP_BIN:
break;
default:
sqlr_new_error ("22003", "UUD01", "Unsupported type of UU-encoding (%ld)", uuenctype);
}
memset (&ctx, 0, sizeof (uu_ctx_t));
ctx.uuc_boundary = boundary;
ctx.uuc_boundary_status = -1;
ctx.uuc_enctype = uuenctype;
ctx.uuc_state = UUSTATE_BEGIN;
input = box_copy (string);
uu_decode_part (&ctx, &out, input);
dk_free_box (input);
if ((NULL == out) || (NULL != ctx.uuc_errmsg))
{
dk_free_box (out);
if (NULL == ctx.uuc_errmsg)
ctx.uuc_errmsg = "generic syntax error";
sqlr_new_error ("22003", "UUD02", "Data string contains errors [%s]", ctx.uuc_errmsg);
}
if (0 != ctx.uuc_trail_len)
{
dk_free_box (out);
sqlr_new_error ("22003", "UUD03", "Encoded data ended prematurely");
}
if (UUSTATE_BEGIN == ctx.uuc_state)
{
dk_free_box (out);
sqlr_new_error ("22003", "UUD04", "No data found to be decoded");
}
return out;
}
int bif_uuencode_init(void)
{
uu_initialize_tables();
bif_define ("uuencode", bif_uuencode);
bif_define ("uuvalidate", bif_uuvalidate);
bif_define ("uudecode", bif_uudecode);
return 0;
}
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