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/* Distributed Checksum Clearinghouse
*
* 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 1.2.74-1.11 $Revision$
*/
#include "dcc_defs.h"
char *
dcc_ck2str(char *tgt, u_int tgt_len, DCC_CK_TYPES type, const DCC_SUM sum)
{
u_int32_t n[sizeof(DCC_SUM)+3/4];
u_char c;
char *p;
int i;
if (type != DCC_CK_SRVR_ID) {
memcpy(n, sum, sizeof(n));
snprintf(tgt, tgt_len, "%08x %08x %08x %08x",
(int)ntohl(n[0]), (int)ntohl(n[1]),
(int)ntohl(n[2]), (int)ntohl(n[3]));
return tgt;
}
/* decode string from server-ID declaration */
p = tgt;
if (tgt_len == 0)
return tgt;
*p++ = '"';
--tgt_len;
for (i = 0; i < ISZ(DCC_SUM); ++i) {
if (tgt_len == 0)
return tgt;
c = sum[i];
if (c == '\0')
break;
if (c >= ' ' && c < 0x7f) {
*p++ = c;
--tgt_len;
} else {
*p++ = '\\';
if (--tgt_len == 0)
return tgt;
*p++ = '0'+(c>>6);
if (--tgt_len == 0)
return tgt;
*p++ = '0'+((c>>3) & 7);
if (--tgt_len == 0)
return tgt;
*p++ = '0'+(c & 7);
--tgt_len;
}
}
*p++ = '"';
--tgt_len;
if (--tgt_len != 0)
*p = '\0';
return tgt;
}
/* this is not thread safe */
const char *
dcc_ck2str_err(DCC_CK_TYPES type, const DCC_SUM sum)
{
static char ck_buf[DCC_CK2STR_LEN];
return dcc_ck2str(ck_buf, sizeof(ck_buf), type, sum);
}
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