feat: add CLI argument parsing structure

includes/cli.h

@@ -0,0 +1,19 @@
+#ifndef PING_CLI_H
+#define PING_CLI_H
+
+#include "ft_ping.h"
+
+typedef int (*t_option_handler)(const char *arg, t_ping_config *config);
+
+int	cli_handle_count(const char *arg, t_ping_config *config);
+int	cli_handle_flood(const char *arg, t_ping_config *config);
+int	cli_handle_help(const char *arg, t_ping_config *config);
+int	cli_handle_interval(const char *arg, t_ping_config *config);
+int	cli_handle_quiet(const char *arg, t_ping_config *config);
+int	cli_handle_size(const char *arg, t_ping_config *config);
+int	cli_handle_timeout(const char *arg, t_ping_config *config);
+int	cli_handle_ttl(const char *arg, t_ping_config *config);
+int	cli_handle_version(const char *arg, t_ping_config *config);
+int	cli_handle_verbose(const char *arg, t_ping_config *config);
+
+#endif

includes/ft_ping.h

@@ -0,0 +1,26 @@
+#ifndef FT_PING
+#define FT_PING
+
+#include <stdint.h>
+#include <stddef.h>
+
+typedef struct s_ping_config
+{
+	/* Target */
+	char		*destination;
+
+	/* Options */
+	uint64_t	count;
+	double		interval;
+	uint8_t		ttl;
+	size_t		packet_size;
+	double		timeout;
+
+	/* Flags */
+	uint8_t		flags;
+}	t_ping_config;
+
+int	cli_parse_arguments(int argc, char **argv, t_ping_config *config);
+
+
+#endif

includes/ft_ping_const.h

@@ -0,0 +1,15 @@
+#ifndef FT_PING_CONST
+#define FT_PING_CONST
+
+/* Default configuration values */
+#define DEFAULT_COUNT		0
+#define DEFAULT_INTERVAL	1.0
+#define DEFAULT_TTL			64
+#define DEFAULT_PACKET_SIZE	56
+#define DEFAULT_TIMEOUT		1.0
+
+/* Maximum values */
+#define MAX_PACKET_SIZE	65507
+#define MAX_TTL			255
+
+#endif

includes/ft_ping_flags.h

@@ -0,0 +1,13 @@
+#ifndef FT_PING_FLAGS
+#define FT_PING_FLAGS
+
+#define FLAG_VERBOSE	(1 << 0)
+#define FLAG_QUIET		(1 << 1)
+#define FLAG_FLOOD		(1 << 2)
+
+#define HAS_FLAG(flags, flag)		((flags) & (flag))
+#define SET_FLAG(flags, flag)		((flags) |= (flag))
+#define CLEAR_FLAG(flags, flag)		((flags) &= ~(flag))
+#define TOGGLE_FLAG(flags, flag)	((flags) ^= (flag))
+
+#endif

sources.mk

@@ -1,6 +1,18 @@
 
 SRC_DIR = srcs
-SRCS = $(SRC_DIR)/main.c
+SRCS = $(SRC_DIR)/main.c \
+	   $(SRC_DIR)/cli/parse.c \
+	   $(SRC_DIR)/cli/handlers/handle_count.c \
+	   $(SRC_DIR)/cli/handlers/handle_flood.c \
+	   $(SRC_DIR)/cli/handlers/handle_help.c \
+	   $(SRC_DIR)/cli/handlers/handle_interval.c \
+	   $(SRC_DIR)/cli/handlers/handle_quit.c \
+	   $(SRC_DIR)/cli/handlers/handler_map.c \
+	   $(SRC_DIR)/cli/handlers/handle_size.c \
+	   $(SRC_DIR)/cli/handlers/handle_timeout.c \
+	   $(SRC_DIR)/cli/handlers/handle_ttl.c \
+	   $(SRC_DIR)/cli/handlers/handle_version.c \
+	   $(SRC_DIR)/cli/handlers/hanlde_verbose.c \
 
 TESTS_DIR = tests
 TESTS= $(TESTS_DIR)/test_main.c

srcs/cli/handlers/handle_count.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_count(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 0;
+}

srcs/cli/handlers/handle_flood.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_flood(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 0;
+}

srcs/cli/handlers/handle_help.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_help(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 1;
+}

srcs/cli/handlers/handle_interval.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_interval(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 0;
+}

srcs/cli/handlers/handle_quit.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_quiet(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 0;
+}

srcs/cli/handlers/handle_size.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_size(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 0;
+}

srcs/cli/handlers/handle_timeout.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_timeout(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 0;
+}

srcs/cli/handlers/handle_ttl.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_ttl(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 0;
+}

srcs/cli/handlers/handle_version.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_version(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 1;
+}

srcs/cli/handlers/handler_map.c

@@ -0,0 +1,26 @@
+
+#include "cli.h"
+#include <getopt.h>
+
+typedef struct s_option_descriptor
+{
+	int					short_opt;
+	const char			*long_opt;
+	int					has_arg;
+	t_option_handler	handler;
+	const char			*description;
+}	t_option_descriptor;
+
+const t_option_descriptor g_options[] = {
+	{'h', "help",     no_argument,       cli_handle_help,     "Display this help and exit"},
+	{'V', "version",  no_argument,       cli_handle_version,  "Display version information and exit"},
+	{'v', "verbose",  no_argument,       cli_handle_verbose,  "Verbose output"},
+	{'q', "quiet",    no_argument,       cli_handle_quiet,    "Quiet mode (only show summary)"},
+	{'c', "count",    required_argument, cli_handle_count,    "Stop after sending N packets"},
+	{'i', "interval", required_argument, cli_handle_interval, "Wait N seconds between packets"},
+	{'t', "ttl",      required_argument, cli_handle_ttl,      "Set Time To Live"},
+	{'s', "size",     required_argument, cli_handle_size,     "Packet size in bytes"},
+	{'W', "timeout",  required_argument, cli_handle_timeout,  "Timeout for replies in seconds"},
+	{'f', "flood",    no_argument,       cli_handle_flood,    "Flood mode"},
+	{0,   NULL,       0,                 NULL,                NULL}
+};

srcs/cli/handlers/hanlde_verbose.c

@@ -0,0 +1,9 @@
+#include "ft_ping.h"
+
+int
+cli_handle_verbose(const char *arg, t_ping_config *config)
+{
+	(void)arg;
+	(void)config;
+	return 0;
+}

srcs/cli/parse.c

@@ -0,0 +1,29 @@
+#include <string.h>
+#include <getopt.h>
+#include "ft_ping.h"
+#include "ft_ping_const.h"
+
+/* Forward declatation */
+static void init_config(t_ping_config *config);
+/* ------------------- */
+
+int
+cli_parse_arguments(int argc, char **argv, t_ping_config *config)
+{
+	(void)argc;
+	(void)argv;
+	init_config(config);
+	return 0;
+}
+
+static void
+init_config(t_ping_config *config)
+{
+	memset(config, 0, sizeof(t_ping_config));
+	config->count = DEFAULT_COUNT;
+	config->interval = DEFAULT_INTERVAL;
+	config->ttl = DEFAULT_TTL;
+	config->packet_size = DEFAULT_PACKET_SIZE;
+	config->timeout = DEFAULT_TIMEOUT;
+}
+

srcs/main.c

@@ -1,6 +1,18 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "ft_ping.h"
 
 int
-main(void)
+main(int argc, char **argv)
 {
-	return 0;
+	t_ping_config	config;
+	int				ret;
+
+	ret = cli_parse_arguments(argc, argv, &config);
+	if (ret != 0)
+		return (ret < 0) ? EXIT_FAILURE : EXIT_SUCCESS;
+
+	printf("PING: Not yet implemented\n");
+
+	return EXIT_SUCCESS;
 }