tell user max interface name length

diff --git a/ebtables.c b/ebtables.c
index fd4a551..28da8d7 100644 (file)
--- a/ebtables.c
+++ b/ebtables.c
@@ -1464,6 +1464,8 @@ static void get_kernel_table(const char *modprobe)
        }
 }
 
+#define print_if_l_error print_error("Interface name length must be less " \
+   "than %d", IFNAMSIZ)
 #define OPT_COMMAND    0x01
 #define OPT_TABLE      0x02
 #define OPT_IN         0x04
@@ -1748,7 +1750,7 @@ int main(int argc, char *argv[])
                                        print_error("No in-interface "
                                                    "specified");
                                if (strlen(argv[optind - 1]) >= IFNAMSIZ)
-                                       print_error("Illegal interface length");
+                                       print_if_l_error;
                                strcpy(new_entry->in, argv[optind - 1]);
                                break;
                        }
@@ -1766,7 +1768,7 @@ int main(int argc, char *argv[])
                                        print_error("No logical in-interface "
                                                    "specified");
                                if (strlen(argv[optind - 1]) >= IFNAMSIZ)
-                                       print_error("Illegal interface length");
+                                       print_if_l_error;
                                strcpy(new_entry->logical_in, argv[optind - 1]);
                                break;
                        }
@@ -1784,8 +1786,7 @@ int main(int argc, char *argv[])
                                                    "specified");
 
                                if (strlen(argv[optind - 1]) >= IFNAMSIZ)
-                                       print_error("Illegal interface "
-                                                   "length");
+                                       print_if_l_error;
                                strcpy(new_entry->out, argv[optind - 1]);
                                break;
                        }
@@ -1803,8 +1804,7 @@ int main(int argc, char *argv[])
                                                    "specified");
 
                                if (strlen(argv[optind - 1]) >= IFNAMSIZ)
-                                       print_error("Illegal interface "
-                                                   "length");
+                                       print_if_l_error;
                                strcpy(new_entry->logical_out,
                                   argv[optind - 1]);
                                break;