[network-manager-openvpn/th/cleanup: 6/11] properties: various cleanups in "properties/nm-openvpn-editor.c"



commit cc6fab1335bed3f684d6ff1493054539b201e89f
Author: Thomas Haller <thaller redhat com>
Date:   Fri Nov 17 15:32:27 2017 +0100

    properties: various cleanups in "properties/nm-openvpn-editor.c"
    
    - don't use strlen() for checking for empty string.
    - replace strtol() with _nm_utils_ascii_str_to_int64()
    - drop some asserts. Instead of asserting against having a valid
      widget, just call the GTK function. In case the assert is invalid,
      GTK triggers a g_return_*() assertion, which is checked anyway,
      and more graceful then dumping core.
    - construct the widget names via nm_sprintf_buf(). It's stack-allocated
      and required less lines of code.

 properties/nm-openvpn-editor.c |  257 +++++++++++++++-------------------------
 1 files changed, 97 insertions(+), 160 deletions(-)
---
diff --git a/properties/nm-openvpn-editor.c b/properties/nm-openvpn-editor.c
index f902ac5..4352ff6 100644
--- a/properties/nm-openvpn-editor.c
+++ b/properties/nm-openvpn-editor.c
@@ -106,24 +106,22 @@ widget_unset_error (GtkWidget *widget)
        gtk_style_context_remove_class (gtk_widget_get_style_context (widget), "error");
 }
 
-typedef struct {
-       GtkWidget *widget1;
-       GtkWidget *widget2;
-} TlsChooserSignalData;
+/*****************************************************************************/
 
 static void
 tls_cert_changed_cb (NMACertChooser *this, gpointer user_data)
 {
        NMACertChooser *other = user_data;
        NMSetting8021xCKScheme scheme;
-       char *this_cert, *other_cert;
-       char *this_key, *other_key;
+       gs_free char *this_cert = NULL;
+       gs_free char *other_cert = NULL;
+       gs_free char *this_key = NULL;
+       gs_free char *other_key = NULL;
 
        other_key = nma_cert_chooser_get_key (other, &scheme);
        this_key = nma_cert_chooser_get_key (this, &scheme);
        other_cert = nma_cert_chooser_get_cert (other, &scheme);
        this_cert = nma_cert_chooser_get_cert (this, &scheme);
-
        if (   scheme == NM_SETTING_802_1X_CK_SCHEME_PATH
            && is_pkcs12 (this_cert)) {
                if (!this_key)
@@ -134,11 +132,6 @@ tls_cert_changed_cb (NMACertChooser *this, gpointer user_data)
                                nma_cert_chooser_set_key (other, this_cert, NM_SETTING_802_1X_CK_SCHEME_PATH);
                }
        }
-
-       g_free (this_cert);
-       g_free (other_cert);
-       g_free (this_key);
-       g_free (other_key);
 }
 
 static void
@@ -151,22 +144,21 @@ tls_setup (GtkBuilder *builder,
 {
        NMACertChooser *cert;
        const char *value;
-       char *tmp;
+       char namebuf[150];
 
-       tmp = g_strdup_printf ("%s_user_cert", prefix);
-       cert = NMA_CERT_CHOOSER (gtk_builder_get_object (builder, tmp));
-       g_free (tmp);
+       nm_sprintf_buf (namebuf, "%s_user_cert", prefix);
+       cert = NMA_CERT_CHOOSER (gtk_builder_get_object (builder, namebuf));
 
        nma_cert_chooser_add_to_size_group (cert, GTK_SIZE_GROUP (gtk_builder_get_object (builder, 
"labels")));
        g_signal_connect (G_OBJECT (cert), "changed", G_CALLBACK (changed_cb), user_data);
 
        if (s_vpn) {
                value = nm_setting_vpn_get_data_item (s_vpn, NM_OPENVPN_KEY_CERT);
-               if (value && strlen (value))
+               if (value && *value)
                        nma_cert_chooser_set_cert (cert, value, NM_SETTING_802_1X_CK_SCHEME_PATH);
 
                value = nm_setting_vpn_get_data_item (s_vpn, NM_OPENVPN_KEY_KEY);
-               if (value && strlen (value))
+               if (value && *value)
                        nma_cert_chooser_set_key (cert, value, NM_SETTING_802_1X_CK_SCHEME_PATH);
                value = nm_setting_vpn_get_secret (s_vpn, NM_OPENVPN_KEY_CERTPASS);
                if (value)
@@ -190,23 +182,21 @@ pw_setup (GtkBuilder *builder,
 {
        GtkWidget *widget;
        const char *value;
-       char *tmp;
+       char namebuf[150];
 
-       tmp = g_strdup_printf ("%s_username_entry", prefix);
-       widget = GTK_WIDGET (gtk_builder_get_object (builder, tmp));
-       g_free (tmp);
+       nm_sprintf_buf (namebuf, "%s_username_entry", prefix);
+       widget = GTK_WIDGET (gtk_builder_get_object (builder, namebuf));
 
        if (s_vpn) {
                value = nm_setting_vpn_get_data_item (s_vpn, NM_OPENVPN_KEY_USERNAME);
-               if (value && strlen (value))
+               if (value && *value)
                        gtk_entry_set_text (GTK_ENTRY (widget), value);
        }
        g_signal_connect (G_OBJECT (widget), "changed", G_CALLBACK (changed_cb), user_data);
 
        /* Fill in the user password */
-       tmp = g_strdup_printf ("%s_password_entry", prefix);
-       widget = GTK_WIDGET (gtk_builder_get_object (builder, tmp));
-       g_free (tmp);
+       nm_sprintf_buf (namebuf, "%s_password_entry", prefix);
+       widget = GTK_WIDGET (gtk_builder_get_object (builder, namebuf));
        g_signal_connect (widget, "changed", G_CALLBACK (changed_cb), user_data);
 
        if (s_vpn) {
@@ -229,16 +219,15 @@ tls_pw_init_auth_widget (GtkBuilder *builder,
 {
        NMACertChooser *ca;
        const char *value;
-       char *tmp;
+       char namebuf[150];
        gboolean tls = FALSE, pw = FALSE;
 
        g_return_if_fail (builder != NULL);
        g_return_if_fail (changed_cb != NULL);
        g_return_if_fail (prefix != NULL);
 
-       tmp = g_strdup_printf ("%s_ca_cert", prefix);
-       ca = NMA_CERT_CHOOSER (gtk_builder_get_object (builder, tmp));
-       g_free (tmp);
+       nm_sprintf_buf (namebuf, "%s_ca_cert", prefix);
+       ca = NMA_CERT_CHOOSER (gtk_builder_get_object (builder, namebuf));
        nma_cert_chooser_add_to_size_group (ca, GTK_SIZE_GROUP (gtk_builder_get_object (builder, "labels")));
 
        /* Three major connection types here: TLS-only, PW-only, and TLS + PW */
@@ -250,7 +239,7 @@ tls_pw_init_auth_widget (GtkBuilder *builder,
        g_signal_connect (ca, "changed", G_CALLBACK (changed_cb), user_data);
        if (s_vpn) {
                value = nm_setting_vpn_get_data_item (s_vpn, NM_OPENVPN_KEY_CA);
-               if (value && strlen (value))
+               if (value && *value)
                        nma_cert_chooser_set_cert (ca, value, NM_SETTING_802_1X_CK_SCHEME_PATH);
        }
 
@@ -274,6 +263,7 @@ sk_init_auth_widget (GtkBuilder *builder,
        const char *value = NULL;
        GtkListStore *store;
        GtkTreeIter iter;
+       int vint;
        gint active = -1;
        gint direction = -1;
        GtkFileFilter *filter;
@@ -291,7 +281,7 @@ sk_init_auth_widget (GtkBuilder *builder,
 
        if (s_vpn) {
                value = nm_setting_vpn_get_data_item (s_vpn, NM_OPENVPN_KEY_STATIC_KEY);
-               if (value && strlen (value))
+               if (value && *value)
                        gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (widget), value);
        }
 
@@ -299,14 +289,9 @@ sk_init_auth_widget (GtkBuilder *builder,
 
        if (s_vpn) {
                value = nm_setting_vpn_get_data_item (s_vpn, NM_OPENVPN_KEY_STATIC_KEY_DIRECTION);
-               if (value && strlen (value)) {
-                       long int tmp;
-
-                       errno = 0;
-                       tmp = strtol (value, NULL, 10);
-                       if (errno == 0 && (tmp == 0 || tmp == 1))
-                               direction = (guint32) tmp;
-               }
+               vint = _nm_utils_ascii_str_to_int64 (value, 10, 0, 1, -1);
+               if (vint != -1)
+                       direction = vint;
        }
 
        gtk_list_store_append (store, &iter);
@@ -332,7 +317,7 @@ sk_init_auth_widget (GtkBuilder *builder,
        g_signal_connect (G_OBJECT (widget), "changed", G_CALLBACK (changed_cb), user_data);
        if (s_vpn) {
                value = nm_setting_vpn_get_data_item (s_vpn, NM_OPENVPN_KEY_LOCAL_IP);
-               if (value && strlen (value))
+               if (value && *value)
                        gtk_entry_set_text (GTK_ENTRY (widget), value);
        }
 
@@ -340,7 +325,7 @@ sk_init_auth_widget (GtkBuilder *builder,
        g_signal_connect (G_OBJECT (widget), "changed", G_CALLBACK (changed_cb), user_data);
        if (s_vpn) {
                value = nm_setting_vpn_get_data_item (s_vpn, NM_OPENVPN_KEY_REMOTE_IP);
-               if (value && strlen (value))
+               if (value && *value)
                        gtk_entry_set_text (GTK_ENTRY (widget), value);
        }
 }
@@ -357,17 +342,17 @@ validate_cert_chooser (GtkBuilder *builder, const char *name, GError **error)
 static gboolean
 validate_tls (GtkBuilder *builder, const char *prefix, GError **error)
 {
-       char *tmp;
        gboolean valid, encrypted = FALSE;
        NMACertChooser *user_cert;
        NMSettingSecretFlags pw_flags;
        gboolean secrets_required = TRUE;
        NMSetting8021xCKScheme scheme;
        GError *local = NULL;
+       char *tmp;
+       char namebuf[150];
 
-       tmp = g_strdup_printf ("%s_ca_cert", prefix);
-       valid = validate_cert_chooser (builder, tmp, &local);
-       g_free (tmp);
+       nm_sprintf_buf (namebuf, "%s_ca_cert", prefix);
+       valid = validate_cert_chooser (builder, namebuf, &local);
        if (!valid) {
                g_set_error (error,
                             NMV_EDITOR_PLUGIN_ERROR,
@@ -377,10 +362,9 @@ validate_tls (GtkBuilder *builder, const char *prefix, GError **error)
                return FALSE;
        }
 
-       tmp = g_strdup_printf ("%s_user_cert", prefix);
-       user_cert = NMA_CERT_CHOOSER (gtk_builder_get_object (builder, tmp));
-       valid = validate_cert_chooser (builder, tmp, &local);
-       g_free (tmp);
+       nm_sprintf_buf (namebuf, "%s_user_cert", prefix);
+       user_cert = NMA_CERT_CHOOSER (gtk_builder_get_object (builder, namebuf));
+       valid = validate_cert_chooser (builder, namebuf, &local);
        if (!valid) {
                g_set_error (error,
                             NMV_EDITOR_PLUGIN_ERROR,
@@ -488,7 +472,7 @@ auth_widget_check_validity (GtkBuilder *builder, const char *contype, GError **e
                        return FALSE;
                }
        } else
-               g_assert_not_reached ();
+               g_return_val_if_reached (FALSE);
 
        return TRUE;
 }
@@ -506,6 +490,7 @@ update_from_cert_chooser (GtkBuilder *builder,
        NMACertChooser *cert_chooser;
        NMSettingSecretFlags pw_flags;
        char *tmp;
+       char namebuf[150];
        const char *password;
 
        g_return_if_fail (builder != NULL);
@@ -514,12 +499,11 @@ update_from_cert_chooser (GtkBuilder *builder,
        g_return_if_fail (widget_name != NULL);
        g_return_if_fail (s_vpn != NULL);
 
-       tmp = g_strdup_printf ("%s_%s", prefix, widget_name);
-       cert_chooser = NMA_CERT_CHOOSER (gtk_builder_get_object (builder, tmp));
-       g_free (tmp);
+       nm_sprintf_buf (namebuf, "%s_%s", prefix, widget_name);
+       cert_chooser = NMA_CERT_CHOOSER (gtk_builder_get_object (builder, namebuf));
 
        tmp = nma_cert_chooser_get_cert (cert_chooser, &scheme);
-       if (tmp && strlen (tmp))
+       if (tmp && *tmp)
                nm_setting_vpn_add_data_item (s_vpn, cert_prop, tmp);
        g_free (tmp);
 
@@ -527,12 +511,12 @@ update_from_cert_chooser (GtkBuilder *builder,
                g_return_if_fail (key_pass_prop != NULL);
 
                tmp = nma_cert_chooser_get_key (cert_chooser, &scheme);
-               if (tmp && strlen (tmp))
+               if (tmp && *tmp)
                        nm_setting_vpn_add_data_item (s_vpn, key_prop, tmp);
                g_free (tmp);
 
                password = nma_cert_chooser_get_key_password (cert_chooser);
-               if (password && strlen (password))
+               if (password && *password)
                        nm_setting_vpn_add_secret (s_vpn, key_pass_prop, password);
 
                pw_flags = nma_cert_chooser_get_key_password_flags (cert_chooser);
@@ -561,32 +545,24 @@ update_pw (GtkBuilder *builder, const char *prefix, NMSettingVpn *s_vpn)
 {
        GtkWidget *widget;
        NMSettingSecretFlags pw_flags;
-       char *tmp;
+       char namebuf[150];
        const char *str;
 
        g_return_if_fail (builder != NULL);
        g_return_if_fail (prefix != NULL);
        g_return_if_fail (s_vpn != NULL);
 
-       tmp = g_strdup_printf ("%s_username_entry", prefix);
-       widget = GTK_WIDGET (gtk_builder_get_object (builder, tmp));
-       g_free (tmp);
-
+       nm_sprintf_buf (namebuf, "%s_username_entry", prefix);
+       widget = GTK_WIDGET (gtk_builder_get_object (builder, namebuf));
        str = gtk_entry_get_text (GTK_ENTRY (widget));
-       if (str && strlen (str))
+       if (str && *str)
                nm_setting_vpn_add_data_item (s_vpn, NM_OPENVPN_KEY_USERNAME, str);
 
-       /* Password */
-       tmp = g_strdup_printf ("%s_password_entry", prefix);
-       widget = (GtkWidget *) gtk_builder_get_object (builder, tmp);
-       g_assert (widget);
-       g_free (tmp);
-
+       nm_sprintf_buf (namebuf, "%s_password_entry", prefix);
+       widget = (GtkWidget *) gtk_builder_get_object (builder, namebuf);
        str = gtk_entry_get_text (GTK_ENTRY (widget));
-       if (str && strlen (str))
+       if (str && *str)
                nm_setting_vpn_add_secret (s_vpn, NM_OPENVPN_KEY_PASSWORD, str);
-
-       /* Update password flags */
        pw_flags = nma_utils_menu_to_secret_flags (widget);
        nm_setting_set_secret_flags (NM_SETTING (s_vpn), NM_OPENVPN_KEY_PASSWORD, pw_flags, NULL);
 }
@@ -615,40 +591,38 @@ auth_widget_update_connection (GtkBuilder *builder,
                /* Update static key */
                widget = GTK_WIDGET (gtk_builder_get_object (builder, "sk_key_chooser"));
                filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (widget));
-               if (filename && strlen (filename))
+               if (filename && *filename)
                        nm_setting_vpn_add_data_item (s_vpn, NM_OPENVPN_KEY_STATIC_KEY, filename);
                g_free (filename);
 
                /* Update direction */
                widget = GTK_WIDGET (gtk_builder_get_object (builder, "sk_direction_combo"));
-               g_assert (widget);
                model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
                if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (widget), &iter)) {
                        int direction = -1;
 
                        gtk_tree_model_get (model, &iter, SK_DIR_COL_NUM, &direction, -1);
                        if (direction > -1) {
-                               char *tmp = g_strdup_printf ("%d", direction);
+                               char tmp[30];
+
+                               nm_sprintf_buf (tmp, "%d", direction);
                                nm_setting_vpn_add_data_item (s_vpn, NM_OPENVPN_KEY_STATIC_KEY_DIRECTION, 
tmp);
-                               g_free (tmp);
                        }
                }
 
                /* Update local address */
                widget = GTK_WIDGET (gtk_builder_get_object (builder, "sk_local_address_entry"));
-               g_assert (widget);
                str = gtk_entry_get_text (GTK_ENTRY (widget));
-               if (str && strlen (str))
+               if (str && *str)
                        nm_setting_vpn_add_data_item (s_vpn, NM_OPENVPN_KEY_LOCAL_IP, str);
 
                /* Update remote address */
                widget = GTK_WIDGET (gtk_builder_get_object (builder, "sk_remote_address_entry"));
-               g_assert (widget);
                str = gtk_entry_get_text (GTK_ENTRY (widget));
-               if (str && strlen (str))
+               if (str && *str)
                        nm_setting_vpn_add_data_item (s_vpn, NM_OPENVPN_KEY_REMOTE_IP, str);
        } else
-               g_assert_not_reached ();
+               g_return_val_if_reached (FALSE);
 
        return TRUE;
 }
@@ -945,18 +919,20 @@ populate_hmacauth_combo (GtkComboBox *box, const char *hmacauth)
        GtkListStore *store;
        GtkTreeIter iter;
        gboolean active_initialized = FALSE;
-       const char **item;
-       static const char *items[] = {
-               NM_OPENVPN_AUTH_NONE,
-               NM_OPENVPN_AUTH_RSA_MD4,
-               NM_OPENVPN_AUTH_MD5,
-               NM_OPENVPN_AUTH_SHA1,
-               NM_OPENVPN_AUTH_SHA224,
-               NM_OPENVPN_AUTH_SHA256,
-               NM_OPENVPN_AUTH_SHA384,
-               NM_OPENVPN_AUTH_SHA512,
-               NM_OPENVPN_AUTH_RIPEMD160,
-               NULL
+       int i;
+       static const struct {
+               const char *name;
+               const char *pretty_name;
+       } items[] = {
+               { NM_OPENVPN_AUTH_NONE,      N_("None") },
+               { NM_OPENVPN_AUTH_RSA_MD4,   N_("RSA MD-4") },
+               { NM_OPENVPN_AUTH_MD5,       N_("MD-5") },
+               { NM_OPENVPN_AUTH_SHA1,      N_("SHA-1") },
+               { NM_OPENVPN_AUTH_SHA224,    N_("SHA-224") },
+               { NM_OPENVPN_AUTH_SHA256,    N_("SHA-256") },
+               { NM_OPENVPN_AUTH_SHA384,    N_("SHA-384") },
+               { NM_OPENVPN_AUTH_SHA512,    N_("SHA-512") },
+               { NM_OPENVPN_AUTH_RIPEMD160, N_("RIPEMD-160") },
        };
 
        store = gtk_list_store_new (3, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_BOOLEAN);
@@ -968,37 +944,15 @@ populate_hmacauth_combo (GtkComboBox *box, const char *hmacauth)
                            HMACAUTH_COL_NAME, _("Default"),
                            HMACAUTH_COL_DEFAULT, TRUE, -1);
 
-       /* Add options */
-       for (item = items; *item; item++) {
-               const char *name = NULL;
-
-               if (!strcmp (*item, NM_OPENVPN_AUTH_NONE))
-                       name = _("None");
-               else if (!strcmp (*item, NM_OPENVPN_AUTH_RSA_MD4))
-                       name = _("RSA MD-4");
-               else if (!strcmp (*item, NM_OPENVPN_AUTH_MD5))
-                       name = _("MD-5");
-               else if (!strcmp (*item, NM_OPENVPN_AUTH_SHA1))
-                       name = _("SHA-1");
-               else if (!strcmp (*item, NM_OPENVPN_AUTH_SHA224))
-                       name = _("SHA-224");
-               else if (!strcmp (*item, NM_OPENVPN_AUTH_SHA256))
-                       name = _("SHA-256");
-               else if (!strcmp (*item, NM_OPENVPN_AUTH_SHA384))
-                       name = _("SHA-384");
-               else if (!strcmp (*item, NM_OPENVPN_AUTH_SHA512))
-                       name = _("SHA-512");
-               else if (!strcmp (*item, NM_OPENVPN_AUTH_RIPEMD160))
-                       name = _("RIPEMD-160");
-               else
-                       g_assert_not_reached ();
+       for (i = 0; i < G_N_ELEMENTS (items); i++) {
+               const char *name = items[i].name;
 
                gtk_list_store_append (store, &iter);
                gtk_list_store_set (store, &iter,
-                                   HMACAUTH_COL_NAME, name,
-                                   HMACAUTH_COL_VALUE, *item,
+                                   HMACAUTH_COL_NAME, _(items[i].pretty_name),
+                                   HMACAUTH_COL_VALUE, name,
                                    HMACAUTH_COL_DEFAULT, FALSE, -1);
-               if (hmacauth && !g_ascii_strcasecmp (*item, hmacauth)) {
+               if (hmacauth && !g_ascii_strcasecmp (name, hmacauth)) {
                        gtk_combo_box_set_active_iter (box, &iter);
                        active_initialized = TRUE;
                }
@@ -1060,7 +1014,7 @@ populate_tls_remote_mode_entry_combo (GtkEntry* entry, GtkComboBox *box,
                            TLS_REMOTE_MODE_COL_VALUE, TLS_REMOTE_MODE_LEGACY,
                            -1);
 
-       if (x509_name && strlen (x509_name)) {
+       if (x509_name && *x509_name) {
                if (g_str_has_prefix (x509_name, "name:"))
                        gtk_combo_box_set_active (box, 2);
                else if (g_str_has_prefix (x509_name, "name-prefix:"))
@@ -1073,7 +1027,7 @@ populate_tls_remote_mode_entry_combo (GtkEntry* entry, GtkComboBox *box,
                        subject_name++;
                else
                        subject_name = x509_name;
-       } else if (tls_remote && strlen (tls_remote)) {
+       } else if (tls_remote && *tls_remote) {
                gtk_combo_box_set_active (box, 4);
 
                subject_name = tls_remote;
@@ -1333,10 +1287,8 @@ show_proxy_password_toggled_cb (GtkCheckButton *button, gpointer user_data)
        GtkWidget *widget;
        gboolean visible;
 
-       widget = GTK_WIDGET (gtk_builder_get_object (builder, "proxy_password_entry"));
-       g_assert (widget);
-
        visible = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button));
+       widget = GTK_WIDGET (gtk_builder_get_object (builder, "proxy_password_entry"));
        gtk_entry_set_visibility (GTK_ENTRY (widget), visible);
 }
 
@@ -1498,6 +1450,7 @@ advanced_dialog_new (GHashTable *hash, const char *contype)
        const char *dev, *dev_type, *tap_dev;
        GtkListStore *store;
        GtkTreeIter iter;
+       int vint;
        guint i;
        guint32 active;
        guint32 pw_flags = NM_SETTING_SECRET_FLAG_NONE;
@@ -1547,18 +1500,14 @@ advanced_dialog_new (GHashTable *hash, const char *contype)
 
        value = g_hash_table_lookup (hash, NM_OPENVPN_KEY_PROXY_SERVER);
        value2 = g_hash_table_lookup (hash, NM_OPENVPN_KEY_PROXY_PORT);
-       if (value && strlen (value) && value2 && strlen (value2)) {
-               long int tmp = 0;
-
+       if (   value && *value
+           && value2 && *value2) {
                widget = GTK_WIDGET (gtk_builder_get_object (builder, "proxy_server_entry"));
                gtk_entry_set_text (GTK_ENTRY (widget), value);
 
-               errno = 0;
-               tmp = strtol (value2, NULL, 10);
-               if (errno != 0 || tmp < 0 || tmp > 65535)
-                       tmp = 0;
+               vint = _nm_utils_ascii_str_to_int64 (value2, 10, 0, 65535, 0);
                widget = GTK_WIDGET (gtk_builder_get_object (builder, "proxy_port_spinbutton"));
-               gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), (gdouble) tmp);
+               gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), (gdouble) vint);
 
                widget = GTK_WIDGET (gtk_builder_get_object (builder, "proxy_retry_checkbutton"));
                value = g_hash_table_lookup (hash, NM_OPENVPN_KEY_PROXY_RETRY);
@@ -1566,25 +1515,20 @@ advanced_dialog_new (GHashTable *hash, const char *contype)
                        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
 
                value = g_hash_table_lookup (hash, NM_OPENVPN_KEY_HTTP_PROXY_USERNAME);
-               if (value && strlen (value)) {
+               if (value && *value) {
                        widget = GTK_WIDGET (gtk_builder_get_object (builder, "proxy_username_entry"));
                        gtk_entry_set_text (GTK_ENTRY (widget), value);
                }
 
                value = g_hash_table_lookup (hash, NM_OPENVPN_KEY_HTTP_PROXY_PASSWORD);
-               if (value && strlen (value)) {
+               if (value && *value) {
                        widget = GTK_WIDGET (gtk_builder_get_object (builder, "proxy_password_entry"));
                        gtk_entry_set_text (GTK_ENTRY (widget), value);
                }
 
                value = g_hash_table_lookup (hash, NM_OPENVPN_KEY_HTTP_PROXY_PASSWORD"-flags");
-               if (value && strlen (value)) {
-                       errno = 0;
-                       tmp = strtol (value, NULL, 10);
-                       if (errno != 0 || tmp < 0 || tmp > 65535)
-                               tmp = 0;
-                       pw_flags = (guint32) tmp;
-               }
+               if (value && *value)
+                       pw_flags = _nm_utils_ascii_str_to_int64 (value, 10, 0, 65535, 0);
        }
        widget = GTK_WIDGET (gtk_builder_get_object (builder, "proxy_password_entry"));
        nma_utils_setup_password_storage (widget, pw_flags, NULL, NULL,
@@ -1708,7 +1652,7 @@ advanced_dialog_new (GHashTable *hash, const char *contype)
 
        widget = GTK_WIDGET (gtk_builder_get_object (builder, "remote_cert_tls_checkbutton"));
        value = g_hash_table_lookup (hash, NM_OPENVPN_KEY_REMOTE_CERT_TLS);
-       if (value && strlen (value))
+       if (value && *value)
                gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
        g_signal_connect (G_OBJECT (widget), "toggled", G_CALLBACK (remote_tls_cert_toggled_cb), builder);
        remote_tls_cert_toggled_cb (widget, builder);
@@ -1719,7 +1663,7 @@ advanced_dialog_new (GHashTable *hash, const char *contype)
 
        widget = GTK_WIDGET (gtk_builder_get_object (builder, "ns_cert_type_checkbutton"));
        value = g_hash_table_lookup (hash, NM_OPENVPN_KEY_NS_CERT_TYPE);
-       if (value && strlen (value))
+       if (value && *value)
                gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
        g_signal_connect (G_OBJECT (widget), "toggled", G_CALLBACK (ns_cert_type_toggled_cb), builder);
        ns_cert_type_toggled_cb (widget, builder);
@@ -1758,12 +1702,8 @@ advanced_dialog_new (GHashTable *hash, const char *contype)
                        gtk_combo_box_set_active (GTK_COMBO_BOX (combo), TLS_AUTH_MODE_AUTH);
                        gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (widget), value);
                        value = g_hash_table_lookup (hash, NM_OPENVPN_KEY_TA_DIR);
-                       if (value && value[0]) {
-                               direction = (int) strtol (value, NULL, 10);
-                               /* If direction is not 0 or 1, use no direction */
-                               if (direction != 0 && direction != 1)
-                                       direction = -1;
-                       }
+                       if (value && value[0])
+                               direction = _nm_utils_ascii_str_to_int64 (value, 10, 0, 1, -1);
                        widget = GTK_WIDGET (gtk_builder_get_object (builder, "direction_combo"));
                        gtk_combo_box_set_active (GTK_COMBO_BOX (widget), direction + 1);
                } else
@@ -1898,7 +1838,7 @@ advanced_dialog_new_hash_from_dialog (GtkWidget *dialog, GError **error)
        if (proxy_type != PROXY_TYPE_NONE) {
                widget = GTK_WIDGET (gtk_builder_get_object (builder, "proxy_server_entry"));
                value = (char *) gtk_entry_get_text (GTK_ENTRY (widget));
-               if (value && strlen (value)) {
+               if (value && *value) {
                        int proxy_port;
 
                        if (proxy_type == PROXY_TYPE_HTTP)
@@ -1924,7 +1864,7 @@ advanced_dialog_new_hash_from_dialog (GtkWidget *dialog, GError **error)
 
                                widget = GTK_WIDGET (gtk_builder_get_object (builder, 
"proxy_username_entry"));
                                value = (char *) gtk_entry_get_text (GTK_ENTRY (widget));
-                               if (value && strlen (value)) {
+                               if (value && *value) {
                                        g_hash_table_insert (hash,
                                                             g_strdup (NM_OPENVPN_KEY_HTTP_PROXY_USERNAME),
                                                             g_strdup (value));
@@ -1932,7 +1872,7 @@ advanced_dialog_new_hash_from_dialog (GtkWidget *dialog, GError **error)
 
                                widget = GTK_WIDGET (gtk_builder_get_object (builder, 
"proxy_password_entry"));
                                value = (char *) gtk_entry_get_text (GTK_ENTRY (widget));
-                               if (value && strlen (value)) {
+                               if (value && *value) {
                                        g_hash_table_insert (hash,
                                                             g_strdup (NM_OPENVPN_KEY_HTTP_PROXY_PASSWORD),
                                                             g_strdup (value));
@@ -2041,7 +1981,8 @@ advanced_dialog_new_hash_from_dialog (GtkWidget *dialog, GError **error)
                combo = GTK_WIDGET (gtk_builder_get_object (builder, "tls_remote_mode_combo"));
                model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo));
 
-               if (value && strlen (value) && gtk_combo_box_get_active_iter (GTK_COMBO_BOX (combo), &iter)) {
+               if (   value && *value
+                   && gtk_combo_box_get_active_iter (GTK_COMBO_BOX (combo), &iter)) {
                        gs_free char *tls_remote_mode = NULL;
                        gtk_tree_model_get (model, &iter, TLS_REMOTE_MODE_COL_VALUE, &tls_remote_mode, -1);
 
@@ -2289,15 +2230,11 @@ auth_combo_changed_cb (GtkWidget *combo, gpointer user_data)
        GtkTreeIter iter;
        gint new_page = 0;
 
-       auth_notebook = GTK_WIDGET (gtk_builder_get_object (priv->builder, "auth_notebook"));
-       g_assert (auth_notebook);
-
        model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo));
-       g_assert (model);
        g_assert (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (combo), &iter));
-
        gtk_tree_model_get (model, &iter, COL_AUTH_PAGE, &new_page, -1);
 
+       auth_notebook = GTK_WIDGET (gtk_builder_get_object (priv->builder, "auth_notebook"));
        gtk_notebook_set_current_page (GTK_NOTEBOOK (auth_notebook), new_page);
 
        stuff_changed_cb (combo, self);
@@ -2489,7 +2426,7 @@ hash_copy_advanced (gpointer key, gpointer data, gpointer user_data)
        NMSettingVpn *s_vpn = NM_SETTING_VPN (user_data);
        const char *value = (const char *) data;
 
-       g_return_if_fail (value && strlen (value));
+       g_return_if_fail (value && *value);
 
        /* HTTP Proxy password is a secret, not a data item */
        if (!strcmp (key, NM_OPENVPN_KEY_HTTP_PROXY_PASSWORD))


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