Fix initial commit.

3 files changed, 240 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..bda48fb
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,6 @@
+AM_CFLAGS = --pedantic -Wall -Werror -std=c99 -O2 -lcidr
+AM_LDFLAGS =
+
+iptest_SOURCES = iptest.c iptest.h
+
+bin_PROGRAMS = iptest
diff --git a/src/iptest.c b/src/iptest.c
new file mode 100644
index 0000000..5087736
--- /dev/null
+++ b/src/iptest.c
@@ -0,0 +1,117 @@
+/*
+ * iptest.c: iptest IPv4/IPv6 validator
+ *
+ * Maintainer: Daniil Baturin <daniil at baturin dot org>
+ *
+ * Copyright (C) 2013 SO3Group
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "config.h"
+#include "iptest.h"
+
+static const struct option options[] =
+{
+    { "is-valid", required_argument, NULL, 'a' },
+    { "is-ipv4", required_argument, NULL, 'b' },
+    { "is-ipv4-host", required_argument, NULL, 'c'},
+    { "is-ipv4-net", required_argument, NULL, 'd'},
+    { "is-ipv6", required_argument, NULL, 'g' },
+    { "is-ipv6-net", required_argument, NULL, 'G' },
+    { NULL, no_argument, NULL, 0 }
+};
+
+void help(void)
+{
+    static char *message = \
+"--is-valid STR    Check if STR is a valid IPv4 or IPv6 address\n\
+                   or subnet\n\
+--is-ipv4 STR Check if STR is a valid IPv4 address with mask\n";
+
+    printf("%s", message);
+}
+
+int main(int argc, char* argv[])
+{
+    char *address_str = "";
+    int action = 0;
+
+    int option_index = 0;
+    char c;
+    int option_count = 0;
+
+    while( (c = getopt_long(argc, argv, "abcd?", options, &option_index)) != -1 )
+    {
+         switch(c)
+         {
+             case 'a':
+                 action = IS_VALID;
+                 address_str = optarg;
+                 break;
+             case 'b':
+                 action = IS_IPV4;
+                 address_str = optarg;
+                 break;
+             case 'c':
+                 action = IS_IPV4_HOST;
+                 address_str = optarg;
+                 break;
+             case 'd':
+                 action = IS_IPV4_NET;
+                 address_str = optarg;
+                 break;
+             case 'I':
+                 action = IS_IPV6;
+                 address_str = optarg;
+                 break;
+             case '?':
+             default:
+                fprintf(stderr, "Invalid option\n");
+                break;
+         }
+         option_count++;
+    }
+
+    if( option_count != 1 )
+    {
+        fprintf(stderr, "Wrong options number, exactly one option expected!\n");
+        help();
+        return(1);
+    }
+
+    CIDR *address;
+    address = cidr_from_str(address_str);
+    int result = EXIT_FAILURE;
+
+    switch(action)
+    {
+        case IS_VALID:
+            result = is_valid_address(address);
+            break;
+        case IS_IPV4:
+            result = is_ipv4(address);
+            break;
+        case IS_IPV4_HOST:
+            result = is_ipv4_host(address);
+            break;
+        case IS_IPV4_NET:
+            result = is_ipv4_net(address);
+            break;
+    }
+
+    return(result);
+}
+
+
diff --git a/src/iptest.h b/src/iptest.h
new file mode 100644
index 0000000..3624ec4
--- /dev/null
+++ b/src/iptest.h
@@ -0,0 +1,117 @@
+/*
+ * iptest.h: macros and functions for iptest IPv4/IPv6 validator
+ *
+ * Maintainer: Daniil Baturin <daniil at baturin dot org>
+ *
+ * Copyright (C) 2013 SO3Group
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <libcidr.h>
+
+#define INVALID_PROTO -1
+
+/* Option codes */
+#define IS_VALID      10
+#define IS_IPV4 20
+#define IS_IPV4_HOST 30
+#define IS_IPV4_NET 40
+#define IS_IPV4_BROADCAST 50
+#define IS_IPV4_UNICAST 60
+#define IS_IPV4_MULTICAST 70
+#define IS_IPV4_RFC1918 80
+#define IS_IPV4_LOOPBACK 85
+#define IS_IPV6 90
+#define IS_IPV6_HOST 100
+#define IS_IPV6_NET 110
+#define IS_IPV6_UNICAST 120
+#define IS_IPV6_MULTICAST 130
+#define IS_IPV6_LINKLOCAL 140
+
+/* Does it look like a valid address of any protocol? */
+int is_valid_address(CIDR *address)
+{
+     int result;
+
+     if( cidr_get_proto(address) != INVALID_PROTO )
+     {
+          result = EXIT_SUCCESS;
+     }
+     else
+     {
+          result = EXIT_FAILURE;
+     }
+
+     return(result);
+}
+
+/* Is it a correct IPv4 host or subnet address
+   with or without net mask */
+int is_ipv4(CIDR *address)
+{
+     int result;
+
+     if( cidr_get_proto(address) == CIDR_IPV4 )
+     {
+          result = EXIT_SUCCESS;
+     }
+     else
+     {
+          result = EXIT_FAILURE;
+     }
+
+     return(result);
+}
+
+/* Is it a correct IPv4 host (i.e. not network) address? */
+int is_ipv4_host(CIDR *address)
+{
+    int result;
+
+    if( (cidr_get_proto(address) == CIDR_IPV4) &&
+        cidr_equals(address, cidr_addr_network(address)) )
+    {
+         result = EXIT_SUCCESS;
+    }
+    else
+    {
+         result = EXIT_FAILURE;
+    }
+
+    return(result);
+}
+
+/* Is it a correct IPv4 network address? */
+int is_ipv4_net(CIDR *address)
+{
+    /* TODO: Don't try to validate is mask is not present */
+    int result;
+
+    if( (cidr_get_proto(address) == CIDR_IPV4) &&
+        (cidr_equals(address, cidr_addr_network(address)) == 0) )
+    {
+         result = EXIT_SUCCESS;
+    }
+    else
+    {
+         result = EXIT_FAILURE;
+    }
+
+    return(result);
+}