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Sweden-Number/dlls/rpcrt4/rpcrt4_main.c

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C
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/*
* RPCRT4
*
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include <unistd.h>
#include "windef.h"
#include "wine/windef16.h"
#include "winerror.h"
#include "winbase.h"
#include "rpc.h"
#ifdef HAVE_SYS_FILE_H
# include <sys/file.h>
#endif
#include <sys/ioctl.h>
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_SYS_SOCKIO_H
# include <sys/sockio.h>
#endif
#ifdef HAVE_NET_IF_H
# include <net/if.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(ole);
/***********************************************************************
* RPCRT4_LibMain
*
* PARAMS
* hinstDLL [I] handle to the DLL's instance
* fdwReason [I]
* lpvReserved [I] reserved, must be NULL
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
static DWORD RPCRT4_dwProcessesAttached = 0;
BOOL WINAPI
RPCRT4_LibMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
switch (fdwReason) {
case DLL_PROCESS_ATTACH:
RPCRT4_dwProcessesAttached++;
break;
case DLL_PROCESS_DETACH:
RPCRT4_dwProcessesAttached--;
break;
}
return TRUE;
}
/*************************************************************************
* UuidCreate [RPCRT4]
*
* Creates a 128bit UUID.
* Implemented according the DCE specification for UUID generation.
* Code is based upon uuid library in e2fsprogs by Theodore Ts'o.
* Copyright (C) 1996, 1997 Theodore Ts'o.
*
* RETURNS
*
* S_OK if successful.
*/
RPC_STATUS WINAPI UuidCreate(UUID *Uuid)
{
static char has_init = 0;
unsigned char a[6];
static int adjustment = 0;
static struct timeval last = {0, 0};
static UINT16 clock_seq;
struct timeval tv;
unsigned long long clock_reg;
UINT clock_high, clock_low;
UINT16 temp_clock_seq, temp_clock_mid, temp_clock_hi_and_version;
#ifdef HAVE_NET_IF_H
int sd;
struct ifreq ifr, *ifrp;
struct ifconf ifc;
char buf[1024];
int n, i;
#endif
/* Have we already tried to get the MAC address? */
if (!has_init) {
#ifdef HAVE_NET_IF_H
/* BSD 4.4 defines the size of an ifreq to be
* max(sizeof(ifreq), sizeof(ifreq.ifr_name)+ifreq.ifr_addr.sa_len
* However, under earlier systems, sa_len isn't present, so
* the size is just sizeof(struct ifreq)
*/
#ifdef HAVE_SA_LEN
# ifndef max
# define max(a,b) ((a) > (b) ? (a) : (b))
# endif
# define ifreq_size(i) max(sizeof(struct ifreq),\
sizeof((i).ifr_name)+(i).ifr_addr.sa_len)
# else
# define ifreq_size(i) sizeof(struct ifreq)
# endif /* HAVE_SA_LEN */
sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
if (sd < 0) {
/* if we can't open a socket, just use random numbers */
/* set the multicast bit to prevent conflicts with real cards */
a[0] = (rand() & 0xff) | 0x80;
a[1] = rand() & 0xff;
a[2] = rand() & 0xff;
a[3] = rand() & 0xff;
a[4] = rand() & 0xff;
a[5] = rand() & 0xff;
} else {
memset(buf, 0, sizeof(buf));
ifc.ifc_len = sizeof(buf);
ifc.ifc_buf = buf;
/* get the ifconf interface */
if (ioctl (sd, SIOCGIFCONF, (char *)&ifc) < 0) {
close(sd);
/* no ifconf, so just use random numbers */
/* set the multicast bit to prevent conflicts with real cards */
a[0] = (rand() & 0xff) | 0x80;
a[1] = rand() & 0xff;
a[2] = rand() & 0xff;
a[3] = rand() & 0xff;
a[4] = rand() & 0xff;
a[5] = rand() & 0xff;
} else {
/* loop through the interfaces, looking for a valid one */
n = ifc.ifc_len;
for (i = 0; i < n; i+= ifreq_size(*ifr) ) {
ifrp = (struct ifreq *)((char *) ifc.ifc_buf+i);
strncpy(ifr.ifr_name, ifrp->ifr_name, IFNAMSIZ);
/* try to get the address for this interface */
# ifdef SIOCGIFHWADDR
if (ioctl(sd, SIOCGIFHWADDR, &ifr) < 0)
continue;
memcpy(a, (unsigned char *)&ifr.ifr_hwaddr.sa_data, 6);
# else
# ifdef SIOCGENADDR
if (ioctl(sd, SIOCGENADDR, &ifr) < 0)
continue;
memcpy(a, (unsigned char *) ifr.ifr_enaddr, 6);
# else
/* XXX we don't have a way of getting the hardware address */
close(sd);
a[0] = 0;
break;
# endif /* SIOCGENADDR */
# endif /* SIOCGIFHWADDR */
/* make sure it's not blank */
if (!a[0] && !a[1] && !a[2] && !a[3] && !a[4] && !a[5])
continue;
goto valid_address;
}
/* if we didn't find a valid address, make a random one */
/* once again, set multicast bit to avoid conflicts */
a[0] = (rand() & 0xff) | 0x80;
a[1] = rand() & 0xff;
a[2] = rand() & 0xff;
a[3] = rand() & 0xff;
a[4] = rand() & 0xff;
a[5] = rand() & 0xff;
valid_address:
close(sd);
}
}
#else
/* no networking info, so generate a random address */
a[0] = (rand() & 0xff) | 0x80;
a[1] = rand() & 0xff;
a[2] = rand() & 0xff;
a[3] = rand() & 0xff;
a[4] = rand() & 0xff;
a[5] = rand() & 0xff;
#endif /* HAVE_NET_IF_H */
has_init = 1;
}
/* generate time element of GUID */
/* Assume that the gettimeofday() has microsecond granularity */
#define MAX_ADJUSTMENT 10
try_again:
gettimeofday(&tv, 0);
if ((last.tv_sec == 0) && (last.tv_usec == 0)) {
clock_seq = ((rand() & 0xff) << 8) + (rand() & 0xff);
clock_seq &= 0x1FFF;
last = tv;
last.tv_sec--;
}
if ((tv.tv_sec < last.tv_sec) ||
((tv.tv_sec == last.tv_sec) &&
(tv.tv_usec < last.tv_usec))) {
clock_seq = (clock_seq+1) & 0x1FFF;
adjustment = 0;
} else if ((tv.tv_sec == last.tv_sec) &&
(tv.tv_usec == last.tv_usec)) {
if (adjustment >= MAX_ADJUSTMENT)
goto try_again;
adjustment++;
} else
adjustment = 0;
clock_reg = tv.tv_usec*10 + adjustment;
clock_reg += ((unsigned long long) tv.tv_sec)*10000000;
clock_reg += (((unsigned long long) 0x01B21DD2) << 32) + 0x13814000;
clock_high = clock_reg >> 32;
clock_low = clock_reg;
temp_clock_seq = clock_seq | 0x8000;
temp_clock_mid = (UINT16)clock_high;
temp_clock_hi_and_version = (clock_high >> 16) | 0x1000;
/* pack the information into the GUID structure */
((unsigned char*)&Uuid->Data1)[3] = (unsigned char)clock_low;
clock_low >>= 8;
((unsigned char*)&Uuid->Data1)[2] = (unsigned char)clock_low;
clock_low >>= 8;
((unsigned char*)&Uuid->Data1)[1] = (unsigned char)clock_low;
clock_low >>= 8;
((unsigned char*)&Uuid->Data1)[0] = (unsigned char)clock_low;
((unsigned char*)&Uuid->Data2)[1] = (unsigned char)temp_clock_mid;
temp_clock_mid >>= 8;
((unsigned char*)&Uuid->Data2)[0] = (unsigned char)temp_clock_mid;
((unsigned char*)&Uuid->Data3)[1] = (unsigned char)temp_clock_hi_and_version;
temp_clock_hi_and_version >>= 8;
((unsigned char*)&Uuid->Data3)[0] = (unsigned char)temp_clock_hi_and_version;
((unsigned char*)Uuid->Data4)[1] = (unsigned char)temp_clock_seq;
temp_clock_seq >>= 8;
((unsigned char*)Uuid->Data4)[0] = (unsigned char)temp_clock_seq;
((unsigned char*)Uuid->Data4)[2] = a[0];
((unsigned char*)Uuid->Data4)[3] = a[1];
((unsigned char*)Uuid->Data4)[4] = a[2];
((unsigned char*)Uuid->Data4)[5] = a[3];
((unsigned char*)Uuid->Data4)[6] = a[4];
((unsigned char*)Uuid->Data4)[7] = a[5];
TRACE("%s", debugstr_guid(Uuid));
return S_OK;
}
/*************************************************************************
* RpcStringFreeA [RPCRT4.436]
*
* Frees a character string allocated by the RPC run-time library.
*
* RETURNS
*
* S_OK if successful.
*/
RPC_STATUS WINAPI RpcStringFreeA(unsigned char** String)
{
HeapFree( GetProcessHeap(), 0, *String);
return S_OK;
}
/*************************************************************************
* UuidToStringA [RPCRT4.450]
*
* Converts a UUID to a string.
*
* UUID format is 8 hex digits, followed by a hyphen then three groups of
* 4 hex digits each followed by a hyphen and then 12 hex digits
*
* RETURNS
*
* S_OK if successful.
* S_OUT_OF_MEMORY if unsucessful.
*/
RPC_STATUS WINAPI UuidToStringA(UUID *Uuid, unsigned char** StringUuid)
{
*StringUuid = HeapAlloc( GetProcessHeap(), 0, sizeof(char) * 37);
/* FIXME: this should be RPC_S_OUT_OF_MEMORY */
if(!(*StringUuid))
return ERROR_OUTOFMEMORY;
sprintf(*StringUuid, "{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
Uuid->Data1, Uuid->Data2, Uuid->Data3,
Uuid->Data4[0], Uuid->Data4[1], Uuid->Data4[2],
Uuid->Data4[3], Uuid->Data4[4], Uuid->Data4[5],
Uuid->Data4[6], Uuid->Data4[7] );
return S_OK; /*FIXME: this should be RPC_S_OK */
}
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