static int dropbox_append(void *data, struct str *str, bool wordy)
{
struct dropbox_section *section = data;
struct timespec tp;
char *c;
int ret;
if (!section->running)
return 0;
ret = clock_gettime(CLOCK_MONOTONIC, &tp);
if (ret) {
perror("clock_gettime");
return -1;
}
if (section->uptodate || tp.tv_sec % 2)
ret = str_append_icon(str, "dropbox_idle");
else
ret = str_append_icon(str, "dropbox_busy");
if (ret)
return -1;
if (wordy) {
if (str_append(str, " "))
return -1;
c = strchrnul(section->status.buf, '\n');
if (str_append_buf(str, section->status.buf, c - section->status.buf))
return -1;
}
return str_separator(str);
}
static knot_dname_t *synth_ptrname(const char *addr_str, synth_template_t *tpl)
{
/* PTR right-hand value is [prefix][address][zone] */
char ptrname[KNOT_DNAME_MAXLEN] = {'\0'};
int prefix_len = strlen(tpl->prefix);
int addr_len = strlen(addr_str);
int zone_len = strlen(tpl->zone);
/* Check required space (zone requires extra leading dot). */
if (prefix_len + addr_len + zone_len + 1 >= KNOT_DNAME_MAXLEN) {
return NULL;
}
/* Write prefix string. */
memcpy(ptrname, tpl->prefix, prefix_len);
int written = prefix_len;
/* Write address with substituted separator to '-'. */
char sep = str_separator(tpl->subnet.ss.ss_family);
memcpy(ptrname + written, addr_str, addr_len);
str_subst(ptrname + written, addr_len, sep, '-');
written += addr_len;
/* Write zone name. */
ptrname[written] = '.';
written += 1;
memcpy(ptrname + written, tpl->zone, zone_len);
/* Convert to domain name. */
return knot_dname_from_str(ptrname);
}
/*! \brief Parse address from reverse query QNAME and return address family. */
static int reverse_addr_parse(struct query_data *qdata, synth_template_t *tpl, char *addr_str)
{
/* QNAME required format is [address].[subnet/zone]
* f.e. [1.0...0].[h.g.f.e.0.0.0.0.d.c.b.a.ip6.arpa] represents
* [abcd:0:efgh::1] */
const knot_dname_t* label = qdata->name;
const uint8_t *query_wire = qdata->query->wire;
/* Push labels on stack for reverse walkthrough. */
const uint8_t* label_stack[KNOT_DNAME_MAXLABELS];
const uint8_t** sp = label_stack;
int label_count = knot_dname_labels(label, query_wire);
while(label_count > ARPA_ZONE_LABELS) {
*sp++ = label;
label = knot_wire_next_label(label, query_wire);
--label_count;
}
/* Write formatted address string. */
char sep = str_separator(tpl->subnet.ss.ss_family);
int sep_frequency = 1;
if (sep == ':') {
sep_frequency = 4; /* Separator per 4 hexdigits. */
}
char *dst = addr_str;
label_count = 0;
while(sp != label_stack) {
label = *--sp;
/* Write separator for each Nth label. */
if (label_count == sep_frequency) {
*dst = sep;
dst += 1;
label_count = 0;
}
/* Write label */
memcpy(dst, label + 1, label[0]);
dst += label[0];
label_count += 1;
}
return KNOT_EOK;
}
static int forward_addr_parse(struct query_data *qdata, synth_template_t *tpl, char *addr_str)
{
/* Find prefix label count (additive to prefix length). */
const knot_dname_t *addr_label = qdata->name;
/* Mismatch if label shorter/equal than prefix. */
int prefix_len = strlen(tpl->prefix);
if (addr_label == NULL || addr_label[0] <= prefix_len) {
return KNOT_EINVAL;
}
int addr_len = *addr_label - prefix_len;
memcpy(addr_str, addr_label + 1 + prefix_len, addr_len);
/* Restore correct address format. */
char sep = str_separator(tpl->subnet.ss.ss_family);
str_subst(addr_str, addr_len, '-', sep);
return KNOT_EOK;
}
static int power_append(void *data, struct str *str, bool wordy)
{
struct power_section *section = data;
const double high_thresh = 55.0;
const double low_thresh = 20.0;
int ret;
if (section->ac_online)
ret = str_append_icon(str, "ac");
else if (section->battery_capacity >= high_thresh)
ret = str_append_icon(str, "bat_full");
else if (section->battery_capacity >= low_thresh)
ret = str_append_icon(str, "bat_low");
else
ret = str_append_icon(str, "bat_empty");
if (ret)
return -1;
if (str_appendf(str, " %.0f%%", section->battery_capacity))
return -1;
return str_separator(str);
}
