protocol/server: White space cleanup and NULL check validations.

Signed-off-by: Junaid <junaid@gluster.com>
Signed-off-by: Amar Tumballi <amar@gluster.com>
Signed-off-by: Vijay Bellur <vijay@dev.gluster.com>

BUG: 2346 (Log message enhancements in GlusterFS - phase 1)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2346

1 files changed, 158 insertions, 166 deletions

diff --git a/xlators/protocol/server/src/authenticate.c b/xlators/protocol/server/src/authenticate.c
index bcdf069108c..5a1c2a8c86b 100644
--- a/xlators/protocol/server/src/authenticate.c
+++ b/xlators/protocol/server/src/authenticate.c
@@ -32,218 +32,210 @@
 #include "authenticate.h"
 
 static void
-init (dict_t *this,
-      char *key,
-      data_t *value,
-      void *data)
+init (dict_t *this, char *key, data_t *value, void *data)
 {
-	void *handle = NULL;
-	char *auth_file = NULL;
-	auth_handle_t *auth_handle = NULL;
-	auth_fn_t authenticate = NULL;
-	int *error = NULL;
+        void *handle = NULL;
+        char *auth_file = NULL;
+        auth_handle_t *auth_handle = NULL;
+        auth_fn_t authenticate = NULL;
+        int *error = NULL;
         int  ret = 0;
 
-	/* It gets over written */
-	error = data;
-
-	if (!strncasecmp (key, "ip", strlen ("ip"))) {
-		gf_log ("authenticate", GF_LOG_ERROR,
-			"AUTHENTICATION MODULE \"IP\" HAS BEEN REPLACED "
-			"BY \"ADDR\"");
-		dict_set (this, key, data_from_dynptr (NULL, 0));
-		/* TODO: 1.3.x backword compatibility */
-		// *error = -1;
-		// return;
-		key = "addr";
-	}
-
-	ret = gf_asprintf (&auth_file, "%s/%s.so", LIBDIR, key);
+        /* It gets over written */
+        error = data;
+
+        if (!strncasecmp (key, "ip", strlen ("ip"))) {
+                gf_log ("authenticate", GF_LOG_ERROR,
+                        "AUTHENTICATION MODULE \"IP\" HAS BEEN REPLACED "
+                        "BY \"ADDR\"");
+                dict_set (this, key, data_from_dynptr (NULL, 0));
+                /* TODO: 1.3.x backword compatibility */
+                // *error = -1;
+                // return;
+                key = "addr";
+        }
+
+        ret = gf_asprintf (&auth_file, "%s/%s.so", LIBDIR, key);
         if (-1 == ret) {
-                gf_log ("authenticate", GF_LOG_ERROR, "asprintf failed");
                 dict_set (this, key, data_from_dynptr (NULL, 0));
                 *error = -1;
                 return;
         }
 
-	handle = dlopen (auth_file, RTLD_LAZY);
-	if (!handle) {
-		gf_log ("authenticate", GF_LOG_ERROR, "dlopen(%s): %s\n",
-			auth_file, dlerror ());
-		dict_set (this, key, data_from_dynptr (NULL, 0));
-		GF_FREE (auth_file);
-		*error = -1;
-		return;
-	}
-	GF_FREE (auth_file);
-
-	authenticate = dlsym (handle, "gf_auth");
-	if (!authenticate) {
-		gf_log ("authenticate", GF_LOG_ERROR,
-			"dlsym(gf_auth) on %s\n", dlerror ());
-		dict_set (this, key, data_from_dynptr (NULL, 0));
-		*error = -1;
-		return;
-	}
-
-	auth_handle = GF_CALLOC (1, sizeof (*auth_handle),
+        handle = dlopen (auth_file, RTLD_LAZY);
+        if (!handle) {
+                gf_log ("authenticate", GF_LOG_ERROR, "dlopen(%s): %s\n",
+                        auth_file, dlerror ());
+                dict_set (this, key, data_from_dynptr (NULL, 0));
+                GF_FREE (auth_file);
+                *error = -1;
+                return;
+        }
+        GF_FREE (auth_file);
+
+        authenticate = dlsym (handle, "gf_auth");
+        if (!authenticate) {
+                gf_log ("authenticate", GF_LOG_ERROR,
+                        "dlsym(gf_auth) on %s\n", dlerror ());
+                dict_set (this, key, data_from_dynptr (NULL, 0));
+                *error = -1;
+                return;
+        }
+
+        auth_handle = GF_CALLOC (1, sizeof (*auth_handle),
                                  gf_common_mt_auth_handle_t);
-	if (!auth_handle) {
-		gf_log ("authenticate", GF_LOG_ERROR, "Out of memory");
-		dict_set (this, key, data_from_dynptr (NULL, 0));
-		*error = -1;
-		return;
-	}
-	auth_handle->vol_opt = GF_CALLOC (1, sizeof (volume_opt_list_t),
-                                       gf_common_mt_volume_opt_list_t);
-	auth_handle->vol_opt->given_opt = dlsym (handle, "options");
-	if (auth_handle->vol_opt->given_opt == NULL) {
-		gf_log ("authenticate", GF_LOG_DEBUG,
-			"volume option validation not specified");
-	}
-
-	auth_handle->authenticate = authenticate;
-	auth_handle->handle = handle;
-
-	dict_set (this, key,
-		  data_from_dynptr (auth_handle, sizeof (*auth_handle)));
+        if (!auth_handle) {
+                dict_set (this, key, data_from_dynptr (NULL, 0));
+                *error = -1;
+                return;
+        }
+        auth_handle->vol_opt = GF_CALLOC (1, sizeof (volume_opt_list_t),
+                                          gf_common_mt_volume_opt_list_t);
+        auth_handle->vol_opt->given_opt = dlsym (handle, "options");
+        if (auth_handle->vol_opt->given_opt == NULL) {
+                gf_log ("authenticate", GF_LOG_DEBUG,
+                        "volume option validation not specified");
+        }
+
+        auth_handle->authenticate = authenticate;
+        auth_handle->handle = handle;
+
+        dict_set (this, key,
+                  data_from_dynptr (auth_handle, sizeof (*auth_handle)));
 }
 
 static void
-fini (dict_t *this,
-      char *key,
-      data_t *value,
-      void *data)
+fini (dict_t *this, char *key, data_t *value, void *data)
 {
-	auth_handle_t *handle = data_to_ptr (value);
-	if (handle) {
-		dlclose (handle->handle);
-	}
+        auth_handle_t *handle = data_to_ptr (value);
+        if (handle) {
+                dlclose (handle->handle);
+        }
 }
 
 int32_t
 gf_auth_init (xlator_t *xl, dict_t *auth_modules)
 {
-	int ret = 0;
-	auth_handle_t *handle = NULL;
-	data_pair_t *pair = NULL;
-	dict_foreach (auth_modules, init, &ret);
-	if (!ret) {
-		pair = auth_modules->members_list;
-		while (pair) {
-			handle = data_to_ptr (pair->value);
-			if (handle) {
-				list_add_tail (&(handle->vol_opt->list),
-					       &(xl->volume_options));
-				if (-1 ==
-				    validate_xlator_volume_options (xl,
-								    handle->vol_opt->given_opt)) {
-					gf_log ("authenticate", GF_LOG_ERROR,
-						"volume option validation "
-						"failed");
-					ret = -1;
-				}
-			}
-			pair = pair->next;
-		}
-	}
-	if (ret) {
-		gf_log (xl->name, GF_LOG_ERROR, "authentication init failed");
-		dict_foreach (auth_modules, fini, &ret);
-		ret = -1;
-	}
-	return ret;
+        int ret = 0;
+        auth_handle_t *handle = NULL;
+        data_pair_t *pair = NULL;
+
+        dict_foreach (auth_modules, init, &ret);
+        if (ret)
+                goto out;
+
+        pair = auth_modules->members_list;
+        while (pair) {
+                handle = data_to_ptr (pair->value);
+                if (!handle) {
+                        pair = pair->next;
+                        continue;
+                }
+
+                list_add_tail (&(handle->vol_opt->list),
+                               &(xl->volume_options));
+                ret = validate_xlator_volume_options (xl,
+                                                      handle->vol_opt->given_opt);
+                if (ret)
+                        gf_log ("authenticate", GF_LOG_ERROR,
+                                "volume option validation failed");
+
+                pair = pair->next;
+        }
+
+out:
+        if (ret) {
+                gf_log (xl->name, GF_LOG_ERROR, "authentication init failed");
+                dict_foreach (auth_modules, fini, &ret);
+                ret = -1;
+        }
+        return ret;
 }
 
 static dict_t *__input_params;
 static dict_t *__config_params;
 
 void
-map (dict_t *this,
-     char *key,
-     data_t *value,
-     void *data)
+map (dict_t *this, char *key, data_t *value, void *data)
 {
-	dict_t *res = data;
-	auth_fn_t authenticate;
-	auth_handle_t *handle = NULL;
-
-	if (value && (handle = data_to_ptr (value)) &&
-	    (authenticate = handle->authenticate)) {
-		dict_set (res, key,
-			  int_to_data (authenticate (__input_params,
-						     __config_params)));
-	} else {
-		dict_set (res, key, int_to_data (AUTH_DONT_CARE));
-	}
+        dict_t *res = data;
+        auth_fn_t authenticate;
+        auth_handle_t *handle = NULL;
+
+        if (value && (handle = data_to_ptr (value)) &&
+            (authenticate = handle->authenticate)) {
+                dict_set (res, key,
+                          int_to_data (authenticate (__input_params,
+                                                     __config_params)));
+        } else {
+                dict_set (res, key, int_to_data (AUTH_DONT_CARE));
+        }
 }
 
 void
-reduce (dict_t *this,
-	char *key,
-	data_t *value,
-	void *data)
+reduce (dict_t *this, char *key, data_t *value, void *data)
 {
-	int64_t val = 0;
-	int64_t *res = data;
-	if (!data)
-		return;
-
-	val = data_to_int64 (value);
-	switch (val)
-	{
-	case AUTH_ACCEPT:
-		if (AUTH_DONT_CARE == *res)
-			*res = AUTH_ACCEPT;
-		break;
-
-	case AUTH_REJECT:
-		*res = AUTH_REJECT;
-		break;
-
-	case AUTH_DONT_CARE:
-		break;
-	}
+        int64_t val = 0;
+        int64_t *res = data;
+        if (!data)
+                return;
+
+        val = data_to_int64 (value);
+        switch (val)
+        {
+        case AUTH_ACCEPT:
+                if (AUTH_DONT_CARE == *res)
+                        *res = AUTH_ACCEPT;
+                break;
+
+        case AUTH_REJECT:
+                *res = AUTH_REJECT;
+                break;
+
+        case AUTH_DONT_CARE:
+                break;
+        }
 }
 
 
 auth_result_t
 gf_authenticate (dict_t *input_params,
-		 dict_t *config_params,
-		 dict_t *auth_modules)
+                 dict_t *config_params,
+                 dict_t *auth_modules)
 {
-	dict_t *results = NULL;
-	int64_t result = AUTH_DONT_CARE;
+        char *name = NULL;
+        dict_t *results = NULL;
+        int64_t result = AUTH_DONT_CARE;
+        data_t *peerinfo_data = NULL;
 
-	results = get_new_dict ();
-	__input_params = input_params;
-	__config_params = config_params;
+        results = get_new_dict ();
+        __input_params = input_params;
+        __config_params = config_params;
 
-	dict_foreach (auth_modules, map, results);
+        dict_foreach (auth_modules, map, results);
 
-	dict_foreach (results, reduce, &result);
-	if (AUTH_DONT_CARE == result) {
-		data_t *peerinfo_data = dict_get (input_params, "peer-info-name");
-		char *name = NULL;
+        dict_foreach (results, reduce, &result);
+        if (AUTH_DONT_CARE == result) {
+                peerinfo_data = dict_get (input_params, "peer-info-name");
 
-		if (peerinfo_data) {
-			name = peerinfo_data->data;
-		}
+                if (peerinfo_data) {
+                        name = peerinfo_data->data;
+                }
 
-		gf_log ("auth", GF_LOG_ERROR,
-			"no authentication module is interested in "
-			"accepting remote-client %s", name);
-		result = AUTH_REJECT;
-	}
+                gf_log ("auth", GF_LOG_ERROR,
+                        "no authentication module is interested in "
+                        "accepting remote-client %s", name);
+                result = AUTH_REJECT;
+        }
 
-	dict_destroy (results);
-	return result;
+        dict_destroy (results);
+        return result;
 }
 
 void
 gf_auth_fini (dict_t *auth_modules)
 {
-	int32_t dummy;
+        int32_t dummy;
 
-	dict_foreach (auth_modules, fini, &dummy);
+        dict_foreach (auth_modules, fini, &dummy);
 }