int hcfg_serialize(char **buf, int *buflen, const hcfg_t *cfg)
{
int i, count, total;
count = snprintf_serial(buf, buflen, "hcfg:%u %u ",
cfg->count, cfg->logsize);
if (count < 0) goto invalid;
total = count;
for (i = 0; i < (1 << cfg->logsize); ++i) {
if (cfg->hash[i].key) {
count = printstr_serial(buf, buflen, cfg->hash[i].key);
if (count < 0) goto invalid;
total += count;
count = printstr_serial(buf, buflen, cfg->hash[i].val);
if (count < 0) goto invalid;
total += count;
}
}
return total;
invalid:
errno = EINVAL;
return -1;
}
int hsignature_serialize(char **buf, int *buflen, const hsignature_t *sig)
{
int i, count, total;
count = snprintf_serial(buf, buflen, "sig: ");
if (count < 0) goto invalid;
total = count;
count = printstr_serial(buf, buflen, sig->name);
if (count < 0) goto error;
total += count;
count = snprintf_serial(buf, buflen, "%d ", sig->range_len);
if (count < 0) goto invalid;
total += count;
for (i = 0; i < sig->range_len; ++i) {
count = hrange_serialize(buf, buflen, &sig->range[i]);
if (count < 0) goto error;
total += count;
}
return total;
invalid:
errno = EINVAL;
error:
return -1;
}
int hrange_serialize(char **buf, int *buflen, const hrange_t *range)
{
int i, count, total;
const char *type_str;
count = snprintf_serial(buf, buflen, "range: ");
if (count < 0) goto error;
total = count;
count = printstr_serial(buf, buflen, range->name);
if (count < 0) goto error;
total += count;
switch (range->type) {
case HVAL_INT:
type_str = "INT";
break;
case HVAL_REAL:
type_str = "REL";
break;
case HVAL_STR:
type_str = "STR";
break;
default:
goto invalid;
}
count = snprintf_serial(buf, buflen, "%s ", type_str);
if (count < 0) goto invalid;
total += count;
switch (range->type) {
case HVAL_INT:
count = snprintf_serial(buf, buflen, "%ld %ld %ld ",
range->bounds.i.min,
range->bounds.i.max,
range->bounds.i.step);
if (count < 0) goto invalid;
total += count;
break;
case HVAL_REAL:
count = snprintf_serial(buf, buflen, "%la %la %la ",
range->bounds.r.min,
range->bounds.r.max,
range->bounds.r.step);
if (count < 0) goto invalid;
total += count;
break;
case HVAL_STR:
count = snprintf_serial(buf, buflen, "%d ", range->bounds.s.set_len);
if (count < 0) goto invalid;
total += count;
for (i = 0; i < range->bounds.s.set_len; ++i) {
count = printstr_serial(buf, buflen, range->bounds.s.set[i]);
if (count < 0) goto invalid;
total += count;
}
break;
default:
goto invalid;
}
return total;
invalid:
errno = EINVAL;
error:
return -1;
}
int hmesg_serialize(hmesg_t *mesg)
{
const char *type_str, *status_str;
char hdr[HMESG_HDRLEN + 1];
char *buf;
int buflen, count, total;
top:
buf = mesg->buf;
buflen = mesg->buflen;
/* Leave room for a header. */
buf += HMESG_HDRLEN;
buflen -= HMESG_HDRLEN;
if (buflen < 0)
buflen = 0;
total = HMESG_HDRLEN;
switch (mesg->type) {
case HMESG_UNKNOWN: type_str = "UNK"; break;
case HMESG_SESSION: type_str = "SES"; break;
case HMESG_JOIN: type_str = "JOI"; break;
case HMESG_GETCFG: type_str = "QRY"; break;
case HMESG_SETCFG: type_str = "INF"; break;
case HMESG_FETCH: type_str = "FET"; break;
case HMESG_REPORT: type_str = "REP"; break;
default: goto invalid;
}
switch (mesg->status) {
case HMESG_STATUS_REQ: status_str = "REQ"; break;
case HMESG_STATUS_OK: status_str = "ACK"; break;
case HMESG_STATUS_FAIL: status_str = "ERR"; break;
case HMESG_STATUS_BUSY: status_str = "BSY"; break;
default: goto invalid;
}
count = snprintf_serial(&buf, &buflen, ":%d:%s:%s:", mesg->dest,
type_str, status_str);
if (count < 0) goto error;
total += count;
count = printstr_serial(&buf, &buflen, mesg->src_id);
if (count < 0) goto error;
total += count;
if (mesg->status == HMESG_STATUS_BUSY) {
/* Busy messages contain no data. */
}
else if (mesg->status == HMESG_STATUS_FAIL) {
count = printstr_serial(&buf, &buflen, mesg->data.string);
if (count < 0) goto error;
total += count;
}
else {
switch (mesg->type) {
case HMESG_SESSION:
if (mesg->status == HMESG_STATUS_REQ) {
count = hsession_serialize(&buf, &buflen, &mesg->data.session);
if (count < 0) goto error;
total += count;
}
break;
case HMESG_JOIN:
count = hsignature_serialize(&buf, &buflen, &mesg->data.join);
if (count < 0) goto error;
total += count;
break;
case HMESG_GETCFG:
case HMESG_SETCFG:
count = printstr_serial(&buf, &buflen, mesg->data.string);
if (count < 0) goto error;
total += count;
break;
case HMESG_FETCH:
if (mesg->status == HMESG_STATUS_REQ) {
count = snprintf_serial(&buf, &buflen, "%d ",
mesg->data.fetch.best.id);
if (count < 0) goto error;
total += count;
}
else if (mesg->status == HMESG_STATUS_OK) {
count = hpoint_serialize(&buf, &buflen,
&mesg->data.fetch.cand);
if (count < 0) goto error;
total += count;
count = hpoint_serialize(&buf, &buflen,
&mesg->data.fetch.best);
if (count < 0) goto error;
total += count;
}
break;
case HMESG_REPORT:
if (mesg->status == HMESG_STATUS_REQ) {
count = hpoint_serialize(&buf, &buflen,
&mesg->data.report.cand);
if (count < 0) goto error;
total += count;
count = snprintf_serial(&buf, &buflen, "%la ",
mesg->data.report.perf);
if (count < 0) goto error;
total += count;
}
break;
default:
goto invalid;
}
}
if (total >= mesg->buflen) {
buf = (char *) realloc(mesg->buf, total + 1);
if (!buf)
goto error;
mesg->buf = buf;
mesg->buflen = total + 1;
goto top;
}
snprintf(hdr, sizeof(hdr), "XXXX%04d%02x", total, HMESG_VERSION);
*(unsigned int *)(hdr) = htonl(HMESG_MAGIC);
memcpy(mesg->buf, hdr, HMESG_HDRLEN);
return total;
invalid:
errno = EINVAL;
error:
return -1;
}