static void grab_ipt_netflow_snmp(time_t now)
{
static char buf[4096];
int fd;
int n;
char *p = buf;
if ((now - totals_ts) < (TOTAL_INTERVAL + 1))
return;
if ((fd = open("/proc/net/stat/ipt_netflow_snmp", O_RDONLY)) < 0)
return;
n = read(fd, buf, sizeof(buf) - 1);
close(fd);
if (n <= 0)
return;
buf[n] = '\0';
DEBUGMSGTL(("netflow", "%s\n", buf));
clear_data_set(cpu_data_set);
clear_data_set(sock_data_set);
while (*p) {
struct snmp_vars *sys;
char *name = p;
char *val;
if (!(p = strpbrk(p, " \t")))
break;
*p++ = '\0';
val = p + strspn(p, " \t");
p = index(p, '\n');
*p++ = '\0';
if (!strncmp(name, "cpu", 3)) {
parse_table_row(atoi(name + 3), val, cputable, cpu_data_set);
continue;
} else if (!strncmp(name, "sock", 4)) {
parse_table_row(atoi(name + 4), val, socktable, sock_data_set);
continue;
}
if (!(sys = find_varinfo_str(totals, name)))
continue;
if (index(val, '.')) {
double d = strtod(val, NULL);
sys->val64 = (long long)(d * 100);
} else
sys->val64 = strtoll(val, NULL, 10);
sys->ts = now;
}
totals_ts = now;
}
static size_t
parse_table_header(struct buf *ob, struct render *rndr, char *data, size_t size, size_t *columns, int **column_data)
{
int pipes;
size_t i = 0, col, header_end, under_end;
pipes = 0;
while (i < size && data[i] != '\n')
if (data[i++] == '|')
pipes++;
if (i == size || pipes == 0)
return 0;
header_end = i;
if (data[0] == '|')
pipes--;
if (i > 2 && data[i - 1] == '|')
pipes--;
*columns = pipes + 1;
*column_data = calloc(*columns, sizeof(int));
/* Parse the header underline */
i++;
if (i < size && data[i] == '|')
i++;
under_end = i;
while (under_end < size && data[under_end] != '\n')
under_end++;
for (col = 0; col < *columns && i < under_end; ++col) {
if (data[i] == ':') {
i++; (*column_data)[col] |= MKD_TABLE_ALIGN_L;
}
while (i < under_end && data[i] == '-')
i++;
if (i < under_end && data[i] == ':') {
i++; (*column_data)[col] |= MKD_TABLE_ALIGN_R;
}
if (i < under_end && data[i] != '|')
break;
i++;
}
if (col < *columns)
return 0;
parse_table_row(ob, rndr, data, header_end, *columns, *column_data);
return under_end + 1;
}
static size_t
parse_table(struct buf *ob, struct render *rndr, char *data, size_t size)
{
size_t i;
struct buf *header_work = 0;
struct buf *body_work = 0;
size_t columns;
int *col_data = NULL;
header_work = rndr_newbuf(rndr);
body_work = rndr_newbuf(rndr);
i = parse_table_header(header_work, rndr, data, size, &columns, &col_data);
if (i > 0) {
while (i < size) {
size_t row_start;
int pipes = 0;
row_start = i;
while (i < size && data[i] != '\n')
if (data[i++] == '|')
pipes++;
if (pipes == 0 || i == size) {
i = row_start;
break;
}
parse_table_row(body_work, rndr, data + row_start, i - row_start, columns, col_data);
i++;
}
if (rndr->make.table)
rndr->make.table(ob, header_work, body_work, rndr->make.opaque);
}
free(col_data);
rndr_popbuf(rndr);
rndr_popbuf(rndr);
return i;
}
/* parse_table • parsing of a whole table */
static size_t
parse_table(struct buf *ob, struct render *rndr, char *data, size_t size) {
size_t i = 0, head_end, col;
size_t align_size = 0;
int *aligns = 0;
struct buf *head = 0;
struct buf *rows = new_work_buffer(rndr);
/* skip the first (presumably header) line */
while (i < size && data[i] != '\n')
i += 1;
head_end = i;
/* fallback on end of input */
if (i >= size) {
parse_table_row(rows, rndr, data, size, 0, 0, 0);
rndr->make.table(ob, 0, rows, rndr->make.opaque);
release_work_buffer(rndr, rows);
return i; }
/* attempt to parse a table rule, i.e. blanks, dash, colons and sep */
i += 1;
col = 0;
while (i < size && (data[i] == ' ' || data[i] == '\t' || data[i] == '-'
|| data[i] == ':' || data[i] == '|')) {
if (data[i] == '|') align_size += 1;
if (data[i] == ':') col = 1;
i += 1; }
if (i < size && data[i] == '\n') {
align_size += 1;
/* render the header row */
head = new_work_buffer(rndr);
parse_table_row(head, rndr, data, head_end, 0, 0,
MKD_CELL_HEAD);
/* parse alignments if provided */
if (col && (aligns = malloc(align_size * sizeof *aligns)) != 0){
for (i = 0; i < align_size; i += 1)
aligns[i] = 0;
col = 0;
i = head_end + 1;
/* skip initial white space and optional separator */
while (i < size && (data[i] == ' ' || data[i] == '\t'))
i += 1;
if (data[i] == '|') i += 1;
/* compute default alignment for each column */
while (i < size && data[i] != '\n') {
if (data[i] == ':')
aligns[col] |= MKD_CELL_ALIGN_LEFT;
while (i < size
&& data[i] != '|' && data[i] != '\n')
i += 1;
if (data[i - 1] == ':')
aligns[col] |= MKD_CELL_ALIGN_RIGHT;
if (i < size && data[i] == '|')
i += 1;
col += 1; } }
/* point i to the beginning of next line/row */
i += 1; }
else {
/* there is no valid ruler, continuing without header */
i = 0; }
/* render the table body lines */
while (i < size && is_tableline(data + i, size - i))
i += parse_table_row(rows, rndr, data + i, size - i,
aligns, align_size, 0);
/* render the full table */
rndr->make.table(ob, head, rows, rndr->make.opaque);
/* cleanup */
if (head) release_work_buffer(rndr, head);
release_work_buffer(rndr, rows);
free(aligns);
return i; }