Dead code removal: #if 0 bio, comp, rand

The start of removing dead code.
A remaining #if 0 in bss_conn.c needs more thought.

Reviewed-by: Richard Levitte <levitte@openssl.org>

1 files changed, 2 insertions, 218 deletions

diff --git a/crypto/bio/b_sock.c b/crypto/bio/b_sock.c
index 7f7a68c2a8..ca485d9c19 100644
--- a/crypto/bio/b_sock.c
+++ b/crypto/bio/b_sock.c
@@ -94,23 +94,7 @@ static int wsa_init_done = 0;
 #  define WSAAPI
 # endif
 
-# if 0
-static unsigned long BIO_ghbn_hits = 0L;
-static unsigned long BIO_ghbn_miss = 0L;
-
-#  define GHBN_NUM        4
-static struct ghbn_cache_st {
-    char name[129];
-    struct hostent *ent;
-    unsigned long order;
-} ghbn_cache[GHBN_NUM];
-# endif
-
 static int get_ip(const char *str, unsigned char *ip);
-# if 0
-static void ghbn_free(struct hostent *a);
-static struct hostent *ghbn_dup(struct hostent *a);
-# endif
 int BIO_get_host_ip(const char *str, unsigned char *ip)
 {
     int i;
@@ -207,10 +191,6 @@ int BIO_get_port(const char *str, unsigned short *port_ptr)
                 *port_ptr = 21;
             else if (strcmp(str, "gopher") == 0)
                 *port_ptr = 70;
-# if 0
-            else if (strcmp(str, "wais") == 0)
-                *port_ptr = 21;
-# endif
             else {
                 SYSerr(SYS_F_GETSERVBYNAME, get_last_socket_error());
                 ERR_add_error_data(3, "service='", str, "'");
@@ -244,208 +224,16 @@ int BIO_sock_error(int sock)
         return (j);
 }
 
-# if 0
-long BIO_ghbn_ctrl(int cmd, int iarg, char *parg)
-{
-    int i;
-    char **p;
-
-    switch (cmd) {
-    case BIO_GHBN_CTRL_HITS:
-        return (BIO_ghbn_hits);
-        /* break; */
-    case BIO_GHBN_CTRL_MISSES:
-        return (BIO_ghbn_miss);
-        /* break; */
-    case BIO_GHBN_CTRL_CACHE_SIZE:
-        return (GHBN_NUM);
-        /* break; */
-    case BIO_GHBN_CTRL_GET_ENTRY:
-        if ((iarg >= 0) && (iarg < GHBN_NUM) && (ghbn_cache[iarg].order > 0)) {
-            p = (char **)parg;
-            if (p == NULL)
-                return (0);
-            *p = ghbn_cache[iarg].name;
-            ghbn_cache[iarg].name[128] = '\0';
-            return (1);
-        }
-        return (0);
-        /* break; */
-    case BIO_GHBN_CTRL_FLUSH:
-        for (i = 0; i < GHBN_NUM; i++)
-            ghbn_cache[i].order = 0;
-        break;
-    default:
-        return (0);
-    }
-    return (1);
-}
-# endif
-
-# if 0
-static struct hostent *ghbn_dup(struct hostent *a)
-{
-    struct hostent *ret;
-    int i, j;
-
-    MemCheck_off();
-    ret = (struct hostent *)OPENSSL_malloc(sizeof(struct hostent));
-    if (ret == NULL)
-        return (NULL);
-    memset(ret, 0, sizeof(struct hostent));
-
-    for (i = 0; a->h_aliases[i] != NULL; i++) ;
-    i++;
-    ret->h_aliases = (char **)OPENSSL_malloc(i * sizeof(char *));
-    if (ret->h_aliases == NULL)
-        goto err;
-    memset(ret->h_aliases, 0, i * sizeof(char *));
-
-    for (i = 0; a->h_addr_list[i] != NULL; i++) ;
-    i++;
-    ret->h_addr_list = (char **)OPENSSL_malloc(i * sizeof(char *));
-    if (ret->h_addr_list == NULL)
-        goto err;
-    memset(ret->h_addr_list, 0, i * sizeof(char *));
-
-    j = strlen(a->h_name) + 1;
-    if ((ret->h_name = OPENSSL_malloc(j)) == NULL)
-        goto err;
-    memcpy((char *)ret->h_name, a->h_name, j);
-    for (i = 0; a->h_aliases[i] != NULL; i++) {
-        j = strlen(a->h_aliases[i]) + 1;
-        if ((ret->h_aliases[i] = OPENSSL_malloc(j)) == NULL)
-            goto err;
-        memcpy(ret->h_aliases[i], a->h_aliases[i], j);
-    }
-    ret->h_length = a->h_length;
-    ret->h_addrtype = a->h_addrtype;
-    for (i = 0; a->h_addr_list[i] != NULL; i++) {
-        if ((ret->h_addr_list[i] = OPENSSL_malloc(a->h_length)) == NULL)
-            goto err;
-        memcpy(ret->h_addr_list[i], a->h_addr_list[i], a->h_length);
-    }
-    if (0) {
- err:
-        if (ret != NULL)
-            ghbn_free(ret);
-        ret = NULL;
-    }
-    MemCheck_on();
-    return (ret);
-}
-
-static void ghbn_free(struct hostent *a)
-{
-    int i;
-
-    if (a == NULL)
-        return;
-
-    if (a->h_aliases != NULL) {
-        for (i = 0; a->h_aliases[i] != NULL; i++)
-            OPENSSL_free(a->h_aliases[i]);
-        OPENSSL_free(a->h_aliases);
-    }
-    if (a->h_addr_list != NULL) {
-        for (i = 0; a->h_addr_list[i] != NULL; i++)
-            OPENSSL_free(a->h_addr_list[i]);
-        OPENSSL_free(a->h_addr_list);
-    }
-    if (a->h_name != NULL)
-        OPENSSL_free(a->h_name);
-    OPENSSL_free(a);
-}
-
-# endif
-
 struct hostent *BIO_gethostbyname(const char *name)
 {
-# if 1
     /*
      * Caching gethostbyname() results forever is wrong, so we have to let
      * the true gethostbyname() worry about this
      */
-#  if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__))
+# if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__))
     return gethostbyname((char *)name);
-#  else
-    return gethostbyname(name);
-#  endif
 # else
-    struct hostent *ret;
-    int i, lowi = 0, j;
-    unsigned long low = (unsigned long)-1;
-
-#  if 0
-    /*
-     * It doesn't make sense to use locking here: The function interface is
-     * not thread-safe, because threads can never be sure when some other
-     * thread destroys the data they were given a pointer to.
-     */
-    CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
-#  endif
-    j = strlen(name);
-    if (j < 128) {
-        for (i = 0; i < GHBN_NUM; i++) {
-            if (low > ghbn_cache[i].order) {
-                low = ghbn_cache[i].order;
-                lowi = i;
-            }
-            if (ghbn_cache[i].order > 0) {
-                if (strncmp(name, ghbn_cache[i].name, 128) == 0)
-                    break;
-            }
-        }
-    } else
-        i = GHBN_NUM;
-
-    if (i == GHBN_NUM) {        /* no hit */
-        BIO_ghbn_miss++;
-        /*
-         * Note: under VMS with SOCKETSHR, it seems like the first parameter
-         * is 'char *', instead of 'const char *'
-         */
-#  ifndef CONST_STRICT
-        ret = gethostbyname((char *)name);
-#  else
-        ret = gethostbyname(name);
-#  endif
-
-        if (ret == NULL)
-            goto end;
-        if (j > 128) {          /* too big to cache */
-#  if 0
-            /*
-             * If we were trying to make this function thread-safe (which is
-             * bound to fail), we'd have to give up in this case (or allocate
-             * more memory).
-             */
-            ret = NULL;
-#  endif
-            goto end;
-        }
-
-        /* else add to cache */
-        if (ghbn_cache[lowi].ent != NULL)
-            ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */
-        ghbn_cache[lowi].name[0] = '\0';
-
-        if ((ret = ghbn_cache[lowi].ent = ghbn_dup(ret)) == NULL) {
-            BIOerr(BIO_F_BIO_GETHOSTBYNAME, ERR_R_MALLOC_FAILURE);
-            goto end;
-        }
-        strncpy(ghbn_cache[lowi].name, name, 128);
-        ghbn_cache[lowi].order = BIO_ghbn_miss + BIO_ghbn_hits;
-    } else {
-        BIO_ghbn_hits++;
-        ret = ghbn_cache[i].ent;
-        ghbn_cache[i].order = BIO_ghbn_miss + BIO_ghbn_hits;
-    }
- end:
-#  if 0
-    CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
-#  endif
-    return (ret);
+    return gethostbyname(name);
 # endif
 }
 
@@ -505,10 +293,6 @@ void BIO_sock_cleanup(void)
 # ifdef OPENSSL_SYS_WINDOWS
     if (wsa_init_done) {
         wsa_init_done = 0;
-#  if 0                         /* this call is claimed to be non-present in
-                                 * Winsock2 */
-        WSACancelBlockingCall();
-#  endif
         WSACleanup();
     }
 # elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)