const char *
ni_print_hex(const unsigned char *data, unsigned int datalen)
{
static char addrbuf[512]; /* >= ni_opaque_t data * 3 */
addrbuf[0] = '\0';
return ni_format_hex(data, datalen, addrbuf, sizeof(addrbuf));
}
const char *
ni_duid_format_hex(char **hex, const ni_opaque_t *duid)
{
ni_string_free(hex);
if (duid->len > 0) {
size_t len = duid->len * 3 + 1;
*hex = xcalloc(1, len);
ni_format_hex(duid->data, duid->len, *hex, len);
}
return *hex;
}
static int
__ni_config_parse_dhcp6_vendor_opt_node(xml_node_t *node, ni_var_array_t *opts, const char *parent)
{
const char *attrval;
const char *code = NULL;
enum {
FORMAT_STR, /* normal string */
FORMAT_HEX, /* XX:XX format */
};
int format = FORMAT_STR;
size_t len;
if (strcmp(node->name, "option")) {
ni_error("config: <%s> is not a valid <%s> option node",
node->name, parent);
return -1;
}
if ((attrval = xml_node_get_attr(node, "code")) != NULL) {
char * err;
long num;
num = strtol(attrval, &err, 0);
if (*err != '\0' || num < 0 || num > 0xffff) {
ni_error("config: unable to parse %s <option code=\"%s\"",
parent, attrval);
return -1;
}
code = attrval;
} else {
ni_error("config: missed %s <option> without code attribute",
parent);
return -1;
}
if ((attrval = xml_node_get_attr(node, "format")) != NULL) {
if (!strcmp(attrval, "hex") || !strcmp(attrval, "mac")) {
format = FORMAT_HEX;
} else
if (!strcmp(attrval, "str") || !strcmp(attrval, "string")) {
format = FORMAT_STR;
} else {
ni_error("config: unknown %s <option format=\"%s\"",
parent, attrval);
return -1;
}
}
len = ni_string_len(node->cdata);
if(format == FORMAT_HEX) {
unsigned char *buf;
/* verify the format early ... */
if (len > 0) {
len = (len / 3) + 1;
buf = xcalloc(1, len);
if (ni_parse_hex(node->cdata, buf, len) <= 0) {
ni_error("config: unable to parse %s hex option data",
parent);
free(buf);
return -1;
}
free(buf);
}
ni_var_array_set(opts, code, node->cdata);
} else {
ni_stringbuf_t buf = NI_STRINGBUF_INIT_DYNAMIC;
/* convert to hex-string format */
if (len > 0) {
ni_stringbuf_grow(&buf, (len * 3));
ni_format_hex((unsigned char *)node->cdata, len, buf.string, buf.size);
}
ni_var_array_set(opts, code, buf.string);
ni_stringbuf_destroy(&buf);
}
return 0;
}
static int
__ni_config_parse_dhcp6_class_data(xml_node_t *node, ni_string_array_t *data, const char *parent)
{
const char *attrval;
enum {
FORMAT_STR, /* normal string */
FORMAT_HEX, /* XX:XX format */
};
int format = FORMAT_STR;
size_t len;
if (strcmp(node->name, "class-data")) {
ni_error("config: <%s> is not a valid <%s> class-data node",
node->name, parent);
return -1;
}
len = ni_string_len(node->cdata);
if (len == 0) {
ni_warn("config: empty %s <class-data> node",
parent);
return 0;
}
if ((attrval = xml_node_get_attr(node, "format")) != NULL) {
if (!strcmp(attrval, "hex") || !strcmp(attrval, "mac")) {
format = FORMAT_HEX;
} else
if (!strcmp(attrval, "str") || !strcmp(attrval, "string")) {
format = FORMAT_STR;
} else {
ni_error("config: unknown %s <class-data format=\"%s\"",
parent, attrval);
return -1;
}
}
if(format == FORMAT_HEX) {
unsigned char *buf;
/* verify the format early ... */
len = (len / 3) + 1;
buf = xcalloc(1, len);
if (ni_parse_hex(node->cdata, buf, len) <= 0) {
ni_error("config: unable to parse %s hex class-data",
parent);
free(buf);
return -1;
}
free(buf);
ni_string_array_append(data, node->cdata);
} else {
ni_stringbuf_t buf = NI_STRINGBUF_INIT_DYNAMIC;
/* convert to hex-string format */
ni_stringbuf_grow(&buf, (len * 3));
ni_format_hex((unsigned char *)node->cdata, len, buf.string, buf.size);
ni_string_array_append(data, buf.string);
ni_stringbuf_destroy(&buf);
}
return 0;
}