mDNS: Avoid uninitialized memory

Use calloc() instead of malloc().

2 files changed, 3 insertions, 3 deletions

diff --git a/mDNSResponder/mDNSPosix/mDNSPosix.c b/mDNSResponder/mDNSPosix/mDNSPosix.c
index 06a8d47d..83b82471 100755
--- a/mDNSResponder/mDNSPosix/mDNSPosix.c
+++ b/mDNSResponder/mDNSPosix/mDNSPosix.c
@@ -834,7 +834,7 @@ mDNSlocal int SetupOneInterface(mDNS *const m, struct sockaddr *intfAddr, struct
     assert(intfMask != NULL);
 
     // Allocate the interface structure itself.
-    intf = (PosixNetworkInterface*)malloc(sizeof(*intf));
+    intf = (PosixNetworkInterface*)calloc(1, sizeof(*intf));
     if (intf == NULL) { assert(0); err = ENOMEM; }
 
     // And make a copy of the intfName.
@@ -1433,7 +1433,7 @@ mDNSexport void    mDNSPlatformMemZero(void *dst, mDNSu32 len)
     memset(dst, 0, len);
 }
 
-mDNSexport void *  mDNSPlatformMemAllocate(mDNSu32 len) { return(malloc(len)); }
+mDNSexport void *  mDNSPlatformMemAllocate(mDNSu32 len) { return(calloc(1, len)); }
 mDNSexport void    mDNSPlatformMemFree    (void *mem)   { free(mem); }
 
 mDNSexport mDNSu32 mDNSPlatformRandomSeed(void)
diff --git a/mDNSResponder/mDNSPosix/mDNSUNP.c b/mDNSResponder/mDNSPosix/mDNSUNP.c
index b392fc74..5c4d9fe1 100755
--- a/mDNSResponder/mDNSPosix/mDNSUNP.c
+++ b/mDNSResponder/mDNSPosix/mDNSUNP.c
@@ -245,7 +245,7 @@ struct ifi_info *get_ifi_info(int family, int doaliases)
     lastlen = 0;
     len = 100 * sizeof(struct ifreq);   /* initial buffer size guess */
     for ( ; ; ) {
-        buf = (char*)malloc(len);
+        buf = (char*)calloc(1, len);
         if (buf == NULL) {
             goto gotError;
         }