PMIB_UDPTABLE getUdpTable(void)
{
DWORD numEntries = getNumUdpEntries();
PMIB_UDPTABLE ret;
ret = (PMIB_UDPTABLE)calloc(1, sizeof(MIB_UDPTABLE) +
(numEntries - 1) * sizeof(MIB_UDPROW));
if (ret) {
FILE *fp;
/* get from /proc/net/udp, no error if can't */
fp = fopen("/proc/net/udp", "r");
if (fp) {
char buf[512] = { 0 }, *ptr;
/* skip header line */
ptr = fgets(buf, sizeof(buf), fp);
while (ptr && ret->dwNumEntries < numEntries) {
ptr = fgets(buf, sizeof(buf), fp);
if (ptr) {
char *endPtr;
if (ptr && *ptr) {
strtoul(ptr, &endPtr, 16); /* skip */
ptr = endPtr;
}
if (ptr && *ptr) {
ptr++;
ret->table[ret->dwNumEntries].dwLocalAddr = strtoul(ptr, &endPtr,
16);
ptr = endPtr;
}
if (ptr && *ptr) {
ptr++;
ret->table[ret->dwNumEntries].dwLocalPort = strtoul(ptr, &endPtr,
16);
ptr = endPtr;
}
ret->dwNumEntries++;
}
}
fclose(fp);
}
}
return ret;
}
DWORD getUDPStats(MIB_UDPSTATS *stats)
{
#if defined(HAVE_SYS_SYSCTL_H) && defined(UDPCTL_STATS)
int mib[] = {CTL_NET, PF_INET, IPPROTO_UDP, UDPCTL_STATS};
#define MIB_LEN (sizeof(mib) / sizeof(mib[0]))
struct udpstat udp_stat;
size_t needed;
if (!stats)
return ERROR_INVALID_PARAMETER;
needed = sizeof(udp_stat);
if(sysctl(mib, MIB_LEN, &udp_stat, &needed, NULL, 0) == -1)
{
ERR ("failed to get udpstat\n");
return ERROR_NOT_SUPPORTED;
}
stats->dwInDatagrams = udp_stat.udps_ipackets;
stats->dwOutDatagrams = udp_stat.udps_opackets;
stats->dwNoPorts = udp_stat.udps_noport;
stats->dwInErrors = udp_stat.udps_hdrops + udp_stat.udps_badsum + udp_stat.udps_fullsock + udp_stat.udps_badlen;
stats->dwNumAddrs = getNumUdpEntries();
return NO_ERROR;
#else
FILE *fp;
if (!stats)
return ERROR_INVALID_PARAMETER;
memset(stats, 0, sizeof(MIB_UDPSTATS));
/* get from /proc/net/snmp, no error if can't */
fp = fopen("/proc/net/snmp", "r");
if (fp) {
static const char hdr[] = "Udp:";
char buf[512] = { 0 }, *ptr;
do {
ptr = fgets(buf, sizeof(buf), fp);
} while (ptr && strncasecmp(buf, hdr, sizeof(hdr) - 1));
if (ptr) {
/* last line was a header, get another */
ptr = fgets(buf, sizeof(buf), fp);
if (ptr && strncasecmp(buf, hdr, sizeof(hdr) - 1) == 0) {
char *endPtr;
ptr += sizeof(hdr);
if (ptr && *ptr) {
stats->dwInDatagrams = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwNoPorts = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwInErrors = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwOutDatagrams = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwNumAddrs = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
}
}
fclose(fp);
}
else
{
ERR ("unimplemented!\n");
return ERROR_NOT_SUPPORTED;
}
return NO_ERROR;
#endif
}
DWORD getUdpTable(PMIB_UDPTABLE *ppUdpTable, HANDLE heap, DWORD flags)
{
DWORD ret;
#if defined(HAVE_SYS_SYSCTL_H) && defined(NET_RT_DUMP)
ERR ("unimplemented!\n");
return ERROR_NOT_SUPPORTED;
#endif
if (!ppUdpTable)
ret = ERROR_INVALID_PARAMETER;
else {
DWORD numEntries = getNumUdpEntries();
DWORD size = sizeof(MIB_UDPTABLE);
PMIB_UDPTABLE table;
if (numEntries > 1)
size += (numEntries - 1) * sizeof(MIB_UDPROW);
table = HeapAlloc(heap, flags, size);
if (table) {
FILE *fp;
ret = NO_ERROR;
*ppUdpTable = table;
table->dwNumEntries = 0;
/* get from /proc/net/udp, no error if can't */
fp = fopen("/proc/net/udp", "r");
if (fp) {
char buf[512] = { 0 }, *ptr;
/* skip header line */
ptr = fgets(buf, sizeof(buf), fp);
while (ptr && table->dwNumEntries < numEntries) {
memset(&table->table[table->dwNumEntries], 0, sizeof(MIB_UDPROW));
ptr = fgets(buf, sizeof(buf), fp);
if (ptr) {
char *endPtr;
if (ptr && *ptr) {
strtoul(ptr, &endPtr, 16); /* skip */
ptr = endPtr;
}
if (ptr && *ptr) {
ptr++;
table->table[table->dwNumEntries].dwLocalAddr = strtoul(ptr,
&endPtr, 16);
ptr = endPtr;
}
if (ptr && *ptr) {
ptr++;
table->table[table->dwNumEntries].dwLocalPort = strtoul(ptr,
&endPtr, 16);
ptr = endPtr;
}
table->dwNumEntries++;
}
}
fclose(fp);
}
else
ret = ERROR_NOT_SUPPORTED;
}
else
ret = ERROR_OUTOFMEMORY;
}
return ret;
}
