Alex Henrie : iphlpapi: Cast caddr_t to char* before doing pointer arithmetic.

[Alexandre Julliard]

Module: wine
Branch: stable
Commit: c6599788a6f1cff586a0d8d09e548da0c123f1ca
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=c6599788a6f1cff586a0d8d09...

Author: Alex Henrie <alexhenrie24(a)gmail.com>
Date:   Thu Jun 28 13:54:45 2018 +0200

iphlpapi: Cast caddr_t to char* before doing pointer arithmetic.

Signed-off-by: Alex Henrie <alexhenrie24(a)gmail.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>
(cherry picked from commit 9b626f512037a8ca615b0ef4d210096df11d3663)
Signed-off-by: Michael Stefaniuc <mstefani(a)winehq.org>

---

 dlls/iphlpapi/ifenum.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/dlls/iphlpapi/ifenum.c b/dlls/iphlpapi/ifenum.c
index eed1be1..c3abdf0 100644
--- a/dlls/iphlpapi/ifenum.c
+++ b/dlls/iphlpapi/ifenum.c
@@ -1013,13 +1013,13 @@ static DWORD enumIPAddresses(PDWORD pcAddresses, struct ifconf *ifc)
 
     if (ioctlRet == 0) {
       ifPtr = ifc->ifc_buf;
-      while (ifPtr && ifPtr < ifc->ifc_buf + ifc->ifc_len) {
+      while (ifPtr && (char *)ifPtr < ifc->ifc_buf + ifc->ifc_len) {
         struct ifreq *ifr = (struct ifreq *)ifPtr;
 
         if (ifr->ifr_addr.sa_family == AF_INET)
           numAddresses++;
 
-        ifPtr += ifreq_len((struct ifreq *)ifPtr);
+        ifPtr = (char *)ifPtr + ifreq_len((struct ifreq *)ifPtr);
       }
     }
     else
@@ -1074,10 +1074,10 @@ DWORD getIPAddrTable(PMIB_IPADDRTABLE *ppIpAddrTable, HANDLE heap, DWORD flags)
         ret = NO_ERROR;
         (*ppIpAddrTable)->dwNumEntries = numAddresses;
         ifPtr = ifc.ifc_buf;
-        while (!ret && ifPtr && ifPtr < ifc.ifc_buf + ifc.ifc_len) {
+        while (!ret && ifPtr && (char *)ifPtr < ifc.ifc_buf + ifc.ifc_len) {
           struct ifreq *ifr = (struct ifreq *)ifPtr;
 
-          ifPtr += ifreq_len(ifr);
+          ifPtr = (char *)ifPtr + ifreq_len(ifr);
 
           if (ifr->ifr_addr.sa_family != AF_INET)
              continue;