Initial Commit.

5 files changed, 411 insertions, 0 deletions

diff --git a/src/parameters/CMakeLists.txt b/src/parameters/CMakeLists.txt
new file mode 100644
index 0000000..2aa7ece
--- /dev/null
+++ b/src/parameters/CMakeLists.txt
@@ -0,0 +1,7 @@
+set(
+   SRC_FILES ${SRC_FILES}
+   ${CMAKE_CURRENT_SOURCE_DIR}/parameters.c
+   ${CMAKE_CURRENT_SOURCE_DIR}/parameters_getters.c
+)
+set(SRC_FILES ${SRC_FILES} PARENT_SCOPE)
+
diff --git a/src/parameters/parameters.c b/src/parameters/parameters.c
new file mode 100644
index 0000000..63556f0
--- /dev/null
+++ b/src/parameters/parameters.c
@@ -0,0 +1,250 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <limits.h>
+
+#include "../error/error.h"
+
+#include "parameters.h"
+
+static int parse_port
+(
+   struct JH_parameters param [const restrict static 1],
+   const char argv [const restrict]
+)
+{
+   long long int input;
+   const int old_errno = errno;
+
+   errno = 0;
+
+   input = strtoll(argv, (char **) NULL, 10);
+
+   if
+   (
+      (errno != 0)
+      || (input > (long long int) USHRT_MAX)
+      || (input < 1)
+   )
+   {
+      JH_FATAL
+      (
+         stderr,
+         "Invalid or value for parameter 'port', accepted "
+         "range is "
+         "[1, %hu] (integer).",
+         USHRT_MAX
+      );
+
+      errno = old_errno;
+
+      return -1;
+   }
+
+   param->port = (unsigned short) input;
+
+   errno = old_errno;
+
+   return 0;
+}
+
+static void set_default_to_all_fields
+(
+   struct JH_parameters param [const restrict static 1]
+)
+{
+   param->socket_name = (const char *) NULL;
+   param->server = (const char *) NULL;
+   param->password = (const char *) NULL;
+   param->nick = (const char *) NULL;
+   param->username = (const char *) NULL;
+   param->realname = (const char *) NULL;
+   param->channel = (const char *) NULL;
+   param->port = 0;
+   param->use_ipv6 = 0;
+}
+
+static int is_valid
+(
+   struct JH_parameters param [const restrict static 1]
+)
+{
+   int valid;
+
+   valid = 1;
+
+   if (param->socket_name == (const char *) NULL)
+   {
+      JH_S_FATAL(stderr, "Missing parameter: Zero of One socket name.");
+
+      valid = 0;
+   }
+
+   if (param->server == (const char *) NULL)
+   {
+      JH_S_FATAL(stderr, "Missing parameter: IRC server address.");
+
+      valid = 0;
+   }
+
+   if (param->nick == (const char *) NULL)
+   {
+      JH_S_FATAL(stderr, "Missing parameter: IRC nick.");
+
+      valid = 0;
+   }
+
+   if (param->channel == (const char *) NULL)
+   {
+      JH_S_FATAL(stderr, "Missing parameter: IRC channel.");
+
+      valid = 0;
+   }
+
+   if (param->port == 0)
+   {
+      JH_S_FATAL(stderr, "Missing parameter: IRC port.");
+
+      valid = 0;
+   }
+
+   return valid;
+}
+
+static void set_parameters
+(
+   struct JH_parameters param [const restrict static 1],
+   int const argc,
+   const char * argv [const static argc]
+)
+{
+   if (argc < 2)
+   {
+      return;
+   }
+
+   param->socket_name = argv[1];
+
+   if (argc < 3)
+   {
+      return;
+   }
+
+   param->server = argv[2];
+
+   if (argc < 4)
+   {
+      return;
+   }
+
+   param->nick = argv[3];
+
+   if (argc < 5)
+   {
+      return;
+   }
+
+   param->channel = argv[4];
+
+   if (argc < 6)
+   {
+      return;
+   }
+
+   parse_port(param, argv[5]);
+}
+
+static int set_options
+(
+   struct JH_parameters param [const restrict static 1],
+   int const argc,
+   const char * argv [const static argc]
+)
+{
+   int i;
+
+   for (i = (JH_PARAMETERS_COUNT + 1); i < argc; ++i)
+   {
+
+      if
+      (
+         JH_STRING_EQUALS("-6", argv[i])
+         || JH_STRING_EQUALS("--ipv6", argv[i])
+      )
+      {
+         param->use_ipv6 = 1;
+      }
+      else if
+      (
+         JH_STRING_EQUALS("-u", argv[i])
+         || JH_STRING_EQUALS("--username", argv[i])
+      )
+      {
+         if (i == (argc - 1))
+         {
+            JH_FATAL(stderr, "Missing value for option \"%s\".", argv[i]);
+
+            return -1;
+         }
+
+         param->username = argv[++i];
+      }
+      else if
+      (
+         JH_STRING_EQUALS("-r", argv[i])
+         || JH_STRING_EQUALS("--realname", argv[i])
+      )
+      {
+         if (i == (argc - 1))
+         {
+            JH_FATAL(stderr, "Missing value for option \"%s\".", argv[i]);
+
+            return -1;
+         }
+
+         param->realname = argv[++i];
+      }
+      else if
+      (
+         JH_STRING_EQUALS("-p", argv[i])
+         || JH_STRING_EQUALS("--password", argv[i])
+      )
+      {
+         if (i == (argc - 1))
+         {
+            JH_FATAL(stderr, "Missing value for option \"%s\".", argv[i]);
+
+            return -1;
+         }
+
+         param->password = argv[++i];
+      }
+      else
+      {
+         JH_FATAL(stderr, "Unrecognized option \"%s\".", argv[i]);
+
+         return -1;
+      }
+   }
+
+   return 0;
+}
+
+int JH_parameters_initialize
+(
+   struct JH_parameters param [const restrict static 1],
+   int const argc,
+   const char * argv [const static argc]
+)
+{
+   set_default_to_all_fields(param);
+
+   set_parameters(param, argc, argv);
+
+   if (!is_valid(param))
+   {
+      return -1;
+   }
+
+   return set_options(param, argc, argv);
+}
diff --git a/src/parameters/parameters.h b/src/parameters/parameters.h
new file mode 100644
index 0000000..58fc957
--- /dev/null
+++ b/src/parameters/parameters.h
@@ -0,0 +1,60 @@
+#ifndef _JH_CLI_PARAMETERS_H_
+#define _JH_CLI_PARAMETERS_H_
+
+#include "parameters_types.h"
+
+int JH_parameters_initialize
+(
+   struct JH_parameters param [const restrict static 1],
+   int const argc,
+   const char * argv [const static argc]
+);
+
+const char * JH_parameters_get_socket_name
+(
+   const struct JH_parameters param [const restrict static 1]
+);
+
+const char * JH_parameters_get_irc_server
+(
+   const struct JH_parameters param [const restrict static 1]
+);
+
+unsigned short JH_parameters_get_irc_port
+(
+   const struct JH_parameters param [const restrict static 1]
+);
+
+/* Having it as an invocation parameter makes it readable by other users on the
+ * machine.
+ */
+const char * JH_parameters_get_irc_password
+(
+   const struct JH_parameters param [const restrict static 1]
+);
+
+const char * JH_parameters_get_irc_nick
+(
+   const struct JH_parameters param [const restrict static 1]
+);
+
+const char * JH_parameters_get_irc_username
+(
+   const struct JH_parameters param [const restrict static 1]
+);
+
+const char * JH_parameters_get_irc_realname
+(
+   const struct JH_parameters param [const restrict static 1]
+);
+
+const char * JH_parameters_get_irc_channel
+(
+   const struct JH_parameters param [const restrict static 1]
+);
+
+int JH_parameters_get_irc_is_ipv6
+(
+   const struct JH_parameters param [const restrict static 1]
+);
+#endif
diff --git a/src/parameters/parameters_getters.c b/src/parameters/parameters_getters.c
new file mode 100644
index 0000000..ee2bdee
--- /dev/null
+++ b/src/parameters/parameters_getters.c
@@ -0,0 +1,73 @@
+#include "parameters.h"
+
+const char * JH_parameters_get_socket_name
+(
+   const struct JH_parameters param [const restrict static 1]
+)
+{
+   return param->socket_name;
+}
+
+const char * JH_parameters_get_irc_server
+(
+   const struct JH_parameters param [const restrict static 1]
+)
+{
+   return param->server;
+}
+
+unsigned short JH_parameters_get_irc_port
+(
+   const struct JH_parameters param [const restrict static 1]
+)
+{
+   return param->port;
+}
+
+const char * JH_parameters_get_irc_password
+(
+   const struct JH_parameters param [const restrict static 1]
+)
+{
+   return param->password;
+}
+
+const char * JH_parameters_get_irc_nick
+(
+   const struct JH_parameters param [const restrict static 1]
+)
+{
+   return param->nick;
+}
+
+const char * JH_parameters_get_irc_username
+(
+   const struct JH_parameters param [const restrict static 1]
+)
+{
+   return param->username;
+}
+
+const char * JH_parameters_get_irc_realname
+(
+   const struct JH_parameters param [const restrict static 1]
+)
+{
+   return param->realname;
+}
+
+const char * JH_parameters_get_irc_channel
+(
+   const struct JH_parameters param [const restrict static 1]
+)
+{
+   return param->channel;
+}
+
+int JH_parameters_get_irc_is_ipv6
+(
+   const struct JH_parameters param [const restrict static 1]
+)
+{
+   return param->use_ipv6;
+}
diff --git a/src/parameters/parameters_types.h b/src/parameters/parameters_types.h
new file mode 100644
index 0000000..7d8dd1c
--- /dev/null
+++ b/src/parameters/parameters_types.h
@@ -0,0 +1,21 @@
+#ifndef _JH_CLI_PARAMETERS_TYPES_H_
+#define _JH_CLI_PARAMETERS_TYPES_H_
+
+#define JH_PARAMETERS_COUNT 5
+
+struct JH_parameters
+{
+   const char * restrict socket_name;
+
+   const char * server;
+   const char * password;
+   const char * nick;
+   const char * username;
+   const char * realname;
+   const char * channel;
+   unsigned short port;
+
+   int use_ipv6;
+};
+
+#endif