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/* Distributed Checksum Clearinghouse
*
* ask for and administrative operation
*
* Copyright (c) 2005 by Rhyolite Software
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND RHYOLITE SOFTWARE DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL RHYOLITE SOFTWARE
* BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
* Rhyolite Software DCC 1.2.74-1.19 $Revision$
*/
#include "dcc_clnt.h"
/* ask for an administrative operation */
DCC_OPS /* DCC_OP_INVALID=failed, else result */
dcc_aop(DCC_EMSG emsg, /* result if DCC_OP_ERROR or _INVALID */
DCC_CLNT_CTXT *ctxt, u_char grey, int anum,
DCC_AOPS aop, u_int32_t val1, u_char val2, u_char val3, u_char val4,
DCC_ADMN_RESP_VAL *pbuf, int *pbuf_len, DCC_SOCKU *resp_su)
{
DCC_ADMN_REQ req;
union {
DCC_HDR hdr;
DCC_OK ok;
DCC_ERROR error;
DCC_ADMN_RESP resp;
u_char b[1];
} resp;
DCC_EMSG loc_emsg;
int max_str_len, out_len;
memset(&req, 0, sizeof(req));
req.date = htonl(time(0));
req.aop = aop;
req.val1 = ntohl(val1);
req.val2 = val2;
req.val3 = val3;
req.val4 = val4;
memset(&resp, 0, sizeof(resp));
if (!dcc_clnt_op(loc_emsg, ctxt,
(grey ? DCC_CLNT_FG_GREY : 0) | DCC_CLNT_FG_NO_FAIL,
&anum, 0,
&req.hdr, sizeof(req), DCC_OP_ADMN,
&resp.hdr, sizeof(resp), resp_su)) {
dcc_pemsg(dcc_ex_code, emsg, "%s: %s",
dcc_op2str(DCC_OP_ADMN, aop, val1), loc_emsg);
return DCC_OP_INVALID;
}
if (resp.hdr.op == DCC_OP_OK) {
if (pbuf_len && *pbuf_len && pbuf) {
out_len = snprintf(pbuf->string, *pbuf_len,
"%s ok", resp.ok.brand);
*pbuf_len = min(*pbuf_len, out_len);
}
return DCC_OP_OK;
}
if (resp.hdr.op == DCC_OP_ERROR) {
dcc_pemsg(dcc_ex_code, emsg, "%s: %s",
dcc_op2str(DCC_OP_ADMN, aop, val1),
resp.resp.val.string);
return DCC_OP_ERROR;
}
if (resp.hdr.op == DCC_OP_ADMN
&& pbuf && pbuf_len && *pbuf_len) {
/* copy whatever the server said to the caller's buffer
* and add a '\0' if it looks like a string */
max_str_len = (ntohs(resp.hdr.len)
- (sizeof(resp.resp)
- sizeof(resp.resp.val.string)));
if (max_str_len == 0
|| (resp.resp.val.string[0] >= ' '
&& resp.resp.val.string[0] < 0x7f)) {
out_len = 1;
} else {
out_len = 0;
}
if (max_str_len > *pbuf_len-out_len)
max_str_len = *pbuf_len-out_len;
if (max_str_len <= 0)
max_str_len = 0;
else
memcpy(pbuf, resp.resp.val.string, max_str_len);
if (out_len)
pbuf->string[max_str_len] = '\0';
*pbuf_len = max_str_len + out_len;
return DCC_OP_ADMN;
}
dcc_pemsg(EX_PROTOCOL, emsg, "%s unexpected response: %s",
dcc_op2str(DCC_OP_ADMN, aop, val1),
dcc_hdr_op2str(&resp.hdr));
return DCC_OP_INVALID;
}
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