int SYSTEM_HW_MACADDR(const char *cmd, const char *param, unsigned flags, AGENT_RESULT *result)
{
size_t offset;
int ret = SYSINFO_RET_FAIL, s, i, show_names;
char *p, regex[MAX_STRING_LEN], address[MAX_STRING_LEN], buffer[MAX_STRING_LEN];
struct ifreq *ifr;
struct ifconf ifc;
zbx_vector_str_t addresses;
if (2 < num_param(param))
return ret;
if (0 != get_param(param, 1, regex, sizeof(regex)) || 0 == strcmp(regex, "all"))
*regex = '\0';
if (0 != get_param(param, 2, buffer, sizeof(buffer)) || '\0' == *buffer || 0 == strcmp(buffer, "full"))
show_names = 1; /* show interface names */
else if (0 == strcmp(buffer, "short"))
show_names = 0;
else
return ret;
if (-1 == (s = socket(AF_INET, SOCK_DGRAM, 0)))
return ret;
/* get the interface list */
ifc.ifc_len = sizeof(buffer);
ifc.ifc_buf = buffer;
if (-1 == ioctl(s, SIOCGIFCONF, &ifc))
goto close;
ifr = ifc.ifc_req;
ret = SYSINFO_RET_OK;
zbx_vector_str_create(&addresses);
zbx_vector_str_reserve(&addresses, 8);
/* go through the list */
for (i = ifc.ifc_len / sizeof(struct ifreq); 0 < i--; ifr++)
{
if ('\0' != *regex && NULL == zbx_regexp_match(ifr->ifr_name, regex, NULL))
continue;
if (-1 != ioctl(s, SIOCGIFFLAGS, ifr) && /* get the interface */
0 == (ifr->ifr_flags & IFF_LOOPBACK) && /* skip loopback interface */
-1 != ioctl(s, SIOCGIFHWADDR, ifr)) /* get the MAC address */
{
offset = 0;
if (1 == show_names)
offset += zbx_snprintf(address + offset, sizeof(address) - offset, "[%s ", ifr->ifr_name);
zbx_snprintf(address + offset, sizeof(address) - offset, "%.2hx:%.2hx:%.2hx:%.2hx:%.2hx:%.2hx",
(unsigned short int)(unsigned char)ifr->ifr_hwaddr.sa_data[0],
(unsigned short int)(unsigned char)ifr->ifr_hwaddr.sa_data[1],
(unsigned short int)(unsigned char)ifr->ifr_hwaddr.sa_data[2],
(unsigned short int)(unsigned char)ifr->ifr_hwaddr.sa_data[3],
(unsigned short int)(unsigned char)ifr->ifr_hwaddr.sa_data[4],
(unsigned short int)(unsigned char)ifr->ifr_hwaddr.sa_data[5]);
if (0 == show_names && FAIL != zbx_vector_str_search(&addresses, address, ZBX_DEFAULT_STR_COMPARE_FUNC))
continue;
zbx_vector_str_append(&addresses, zbx_strdup(NULL, address));
}
}
offset = 0;
if (0 != addresses.values_num)
{
zbx_vector_str_sort(&addresses, ZBX_DEFAULT_STR_COMPARE_FUNC);
for (i = 0; i < addresses.values_num; i++)
{
if (1 == show_names && NULL != (p = strchr(addresses.values[i], ' ')))
*p = ']';
offset += zbx_snprintf(buffer + offset, sizeof(buffer) - offset, "%s, ", addresses.values[i]);
zbx_free(addresses.values[i]);
}
offset -= 2;
}
buffer[offset] = '\0';
if (SYSINFO_RET_OK == ret)
SET_STR_RESULT(result, zbx_strdup(NULL, buffer));
zbx_vector_str_destroy(&addresses);
close:
close(s);
return ret;
}
/******************************************************************************
* *
* Function: zbx_vector_str_append_uniq *
* *
* Purpose: append non duplicate string to the string vector *
* *
* Parameters: vector - [IN/OUT] the string vector *
* str - [IN] the string to append *
* *
******************************************************************************/
static void zbx_vector_str_append_uniq(zbx_vector_str_t *vector, const char *str)
{
if (FAIL == zbx_vector_str_search(vector, str, ZBX_DEFAULT_STR_COMPARE_FUNC))
zbx_vector_str_append(vector, zbx_strdup(NULL, str));
}
