Use xrealloc instead of if(ptr) ptr = xmalloc().

diff --git a/src/protocol_auth.c b/src/protocol_auth.c
index 5e45360..4816610 100644 (file)
--- a/src/protocol_auth.c
+++ b/src/protocol_auth.c
@@ -130,8 +130,7 @@ bool send_metakey(connection_t *c)
 
        buffer = alloca(2 * len + 1);
        
-       if(!c->outkey)
-               c->outkey = xmalloc(len);
+       c->outkey = xrealloc(c->outkey, len);
 
        if(!c->outctx)
                c->outctx = xmalloc_and_zero(sizeof(*c->outctx));
@@ -227,8 +226,7 @@ bool metakey_h(connection_t *c)
 
        /* Allocate buffers for the meta key */
 
-       if(!c->inkey)
-               c->inkey = xmalloc(len);
+       c->inkey = xrealloc(c->inkey, len);
 
        if(!c->inctx)
                c->inctx = xmalloc_and_zero(sizeof(*c->inctx));
@@ -317,8 +315,7 @@ bool send_challenge(connection_t *c)
 
        buffer = alloca(2 * len + 1);
 
-       if(!c->hischallenge)
-               c->hischallenge = xmalloc(len);
+       c->hischallenge = xrealloc(c->hischallenge, len);
 
        /* Copy random data to the buffer */
 
@@ -359,8 +356,7 @@ bool challenge_h(connection_t *c)
 
        /* Allocate buffers for the challenge */
 
-       if(!c->mychallenge)
-               c->mychallenge = xmalloc(len);
+       c->mychallenge = xrealloc(c->mychallenge, len);
 
        /* Convert the challenge from hexadecimal back to binary */