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iphlpapi: Simplify parsing of IP stats. Only try to open /proc on Linux.

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This commit is contained in:
Alexandre Julliard 2009-03-05 14:24:08 +01:00
parent ea73002863
commit 988f6b50c7
1 changed files with 105 additions and 165 deletions
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188
dlls/iphlpapi/ipstats.c
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@ -381,16 +381,72 @@ DWORD WINAPI GetIcmpStatistics(PMIB_ICMP stats)
*/
DWORD WINAPI GetIpStatistics(PMIB_IPSTATS stats)
{
#if defined(HAVE_SYS_SYSCTL_H) && defined(IPCTL_STATS)
DWORD ret = ERROR_NOT_SUPPORTED;
MIB_IPFORWARDTABLE *fwd_table;
if (!stats) return ERROR_INVALID_PARAMETER;
memset( stats, 0, sizeof(*stats) );
stats->dwNumIf = stats->dwNumAddr = getNumInterfaces();
if (!AllocateAndGetIpForwardTableFromStack( &fwd_table, FALSE, GetProcessHeap(), 0 ))
{
stats->dwNumRoutes = fwd_table->dwNumEntries;
HeapFree( GetProcessHeap(), 0, fwd_table );
}
#ifdef __linux__
{
FILE *fp;
if ((fp = fopen("/proc/net/snmp", "r")))
{
static const char hdr[] = "Ip:";
char buf[512], *ptr;
while ((ptr = fgets(buf, sizeof(buf), fp)))
{
if (strncasecmp(buf, hdr, sizeof(hdr) - 1)) continue;
/* last line was a header, get another */
if (!(ptr = fgets(buf, sizeof(buf), fp))) break;
if (!strncasecmp(buf, hdr, sizeof(hdr) - 1))
{
ptr += sizeof(hdr);
sscanf( ptr, "%u %u %u %u %u %u %u %u %u %u %u %u %u %u %u %u %u %u %u",
&stats->dwForwarding,
&stats->dwDefaultTTL,
&stats->dwInReceives,
&stats->dwInHdrErrors,
&stats->dwInAddrErrors,
&stats->dwForwDatagrams,
&stats->dwInUnknownProtos,
&stats->dwInDiscards,
&stats->dwInDelivers,
&stats->dwOutRequests,
&stats->dwOutDiscards,
&stats->dwOutNoRoutes,
&stats->dwReasmTimeout,
&stats->dwReasmReqds,
&stats->dwReasmOks,
&stats->dwReasmFails,
&stats->dwFragOks,
&stats->dwFragFails,
&stats->dwFragCreates );
/* hmm, no routingDiscards */
break;
}
}
fclose(fp);
ret = NO_ERROR;
}
}
#elif defined(HAVE_SYS_SYSCTL_H) && defined(IPCTL_STATS)
{
int mib[] = {CTL_NET, PF_INET, IPPROTO_IP, IPCTL_STATS};
#define MIB_LEN (sizeof(mib) / sizeof(mib[0]))
int ip_ttl, ip_forwarding;
struct ipstat ip_stat;
size_t needed;
if (!stats)
return ERROR_INVALID_PARAMETER;
needed = sizeof(ip_stat);
if(sysctl(mib, MIB_LEN, &ip_stat, &needed, NULL, 0) == -1)
{
@ -429,128 +485,12 @@ DWORD WINAPI GetIpStatistics(PMIB_IPSTATS stats)
stats->dwOutNoRoutes = ip_stat.ips_noroute;
stats->dwOutRequests = ip_stat.ips_localout;
stats->dwReasmReqds = ip_stat.ips_fragments;
return NO_ERROR;
ret = NO_ERROR;
}
#else
FILE *fp;
MIB_IPFORWARDTABLE *fwd_table;
if (!stats)
return ERROR_INVALID_PARAMETER;
memset(stats, 0, sizeof(MIB_IPSTATS));
stats->dwNumIf = stats->dwNumAddr = getNumInterfaces();
if (!AllocateAndGetIpForwardTableFromStack( &fwd_table, FALSE, GetProcessHeap(), 0 ))
{
stats->dwNumRoutes = fwd_table->dwNumEntries;
HeapFree( GetProcessHeap(), 0, fwd_table );
}
/* get most of these stats from /proc/net/snmp, no error if can't */
fp = fopen("/proc/net/snmp", "r");
if (fp) {
static const char hdr[] = "Ip:";
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->dwForwarding = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwDefaultTTL = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwInReceives = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwInHdrErrors = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwInAddrErrors = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwForwDatagrams = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwInUnknownProtos = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwInDiscards = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwInDelivers = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwOutRequests = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwOutDiscards = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwOutNoRoutes = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwReasmTimeout = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwReasmReqds = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwReasmOks = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwReasmFails = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwFragOks = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwFragFails = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
stats->dwFragCreates = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
/* hmm, no routingDiscards */
}
}
fclose(fp);
}
else
{
ERR ("unimplemented!\n");
return ERROR_NOT_SUPPORTED;
}
return NO_ERROR;
FIXME( "unimplemented\n" );
#endif
return ret;
}