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iphlpapi: Simplify parsing of interface data. Only try to open /proc on Linux.

This commit is contained in:
Alexandre Julliard 2009-03-05 14:23:52 +01:00
parent fc5ac51654
commit ea73002863
1 changed files with 82 additions and 127 deletions
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145
dlls/iphlpapi/ipstats.c
View File

@ -150,31 +150,66 @@ WINE_DEFAULT_DEBUG_CHANNEL(iphlpapi);
DWORD getInterfaceStatsByName(const char *name, PMIB_IFROW entry)
{
#if defined(HAVE_SYS_SYSCTL_H) && defined(NET_RT_IFLIST)
DWORD ret = ERROR_NOT_SUPPORTED;
if (!name || !entry) return ERROR_INVALID_PARAMETER;
#ifdef __linux__
{
FILE *fp;
if ((fp = fopen("/proc/net/dev", "r")))
{
DWORD skip;
char buf[512], *ptr;
int nameLen = strlen(name);
while ((ptr = fgets(buf, sizeof(buf), fp)))
{
while (*ptr && isspace(*ptr)) ptr++;
if (strncasecmp(ptr, name, nameLen) == 0 && *(ptr + nameLen) == ':')
{
ptr += nameLen + 1;
sscanf( ptr, "%u %u %u %u %u %u %u %u %u %u %u %u",
&entry->dwInOctets, &entry->dwInUcastPkts,
&entry->dwInErrors, &entry->dwInDiscards,
&skip, &skip, &skip,
&entry->dwInNUcastPkts, &entry->dwOutOctets,
&entry->dwOutUcastPkts, &entry->dwOutErrors,
&entry->dwOutDiscards );
break;
}
}
fclose(fp);
ret = NO_ERROR;
}
}
#elif defined(HAVE_SYS_SYSCTL_H) && defined(NET_RT_IFLIST)
{
int mib[] = {CTL_NET, PF_ROUTE, 0, AF_INET, NET_RT_IFLIST, if_nametoindex(name)};
#define MIB_LEN (sizeof(mib) / sizeof(mib[0]))
size_t needed;
char *buf, *end;
char *buf = NULL, *end;
struct if_msghdr *ifm;
struct if_data ifdata;
if (!name || !entry)
return ERROR_INVALID_PARAMETER;
if(sysctl(mib, MIB_LEN, NULL, &needed, NULL, 0) == -1)
{
ERR ("failed to get size of iflist\n");
return ERROR_NOT_SUPPORTED;
goto done;
}
buf = HeapAlloc (GetProcessHeap (), 0, needed);
if (!buf) return ERROR_NOT_SUPPORTED;
if (!buf)
{
ret = ERROR_OUTOFMEMORY;
goto done;
}
if(sysctl(mib, MIB_LEN, buf, &needed, NULL, 0) == -1)
{
ERR ("failed to get iflist\n");
HeapFree (GetProcessHeap (), 0, buf);
return ERROR_NOT_SUPPORTED;
goto done;
}
else
for ( end = buf + needed; buf < end; buf += ifm->ifm_msglen)
{
ifm = (struct if_msghdr *) buf;
@ -191,97 +226,17 @@ DWORD getInterfaceStatsByName(const char *name, PMIB_IFROW entry)
entry->dwOutOctets = ifdata.ifi_obytes;
entry->dwOutUcastPkts = ifdata.ifi_opackets;
entry->dwOutErrors = ifdata.ifi_oerrors;
HeapFree (GetProcessHeap (), 0, buf);
return NO_ERROR;
ret = NO_ERROR;
break;
}
}
done:
HeapFree (GetProcessHeap (), 0, buf);
return ERROR_NOT_SUPPORTED;
}
#else
/* get interface stats from /proc/net/dev, no error if can't
no inUnknownProtos, outNUcastPkts, outQLen */
FILE *fp;
if (!name || !entry)
return ERROR_INVALID_PARAMETER;
fp = fopen("/proc/net/dev", "r");
if (fp) {
char buf[512] = { 0 }, *ptr;
int nameLen = strlen(name), nameFound = 0;
ptr = fgets(buf, sizeof(buf), fp);
while (ptr && !nameFound) {
while (*ptr && isspace(*ptr))
ptr++;
if (strncasecmp(ptr, name, nameLen) == 0 && *(ptr + nameLen) == ':')
nameFound = 1;
else
ptr = fgets(buf, sizeof(buf), fp);
}
if (nameFound) {
char *endPtr;
ptr += nameLen + 1;
if (ptr && *ptr) {
entry->dwInOctets = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
entry->dwInUcastPkts = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
entry->dwInErrors = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
entry->dwInDiscards = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
strtoul(ptr, &endPtr, 10); /* skip */
ptr = endPtr;
}
if (ptr && *ptr) {
strtoul(ptr, &endPtr, 10); /* skip */
ptr = endPtr;
}
if (ptr && *ptr) {
strtoul(ptr, &endPtr, 10); /* skip */
ptr = endPtr;
}
if (ptr && *ptr) {
entry->dwInNUcastPkts = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
entry->dwOutOctets = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
entry->dwOutUcastPkts = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
entry->dwOutErrors = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
if (ptr && *ptr) {
entry->dwOutDiscards = strtoul(ptr, &endPtr, 10);
ptr = endPtr;
}
}
fclose(fp);
}
else
{
ERR ("unimplemented!\n");
return ERROR_NOT_SUPPORTED;
}
return NO_ERROR;
FIXME( "unimplemented\n" );
#endif
return ret;
}