builtin_commands.h File Reference

File containing the built-in commands functions to manage the built-in commands such as cd, pwd, echo, exit. More...

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "typedef.h"
#include "constants.h"
#include "command_sequence.h"
#include "alias.h"

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Functions
int	execute_builtin_command (const Command *command, CommandSequence *sequence)
	Executes a command. More...
void	pwd ()
	Prints the current working directory.
void	cd (const char *path)
	Changes the current directory. More...
int	is_builtin_command (const Command *command, const char *expected)
	Checks if the command is a built-in command. More...
int	exit_shell (CommandSequence *sequence, int exit_code)
	Exits the shell. More...
void	echo (const Command *command)
	Prints a message. More...

Detailed Description

File containing the built-in commands functions to manage the built-in commands such as cd, pwd, echo, exit.

Author

Julien & Franck

Date

24 Dec 2023

Function Documentation

cd()

void cd

(

const char *

path

)

Changes the current directory.

Parameters

path	The path to the new directory

echo()

void echo

(

const Command *

command

)

Prints a message.

Parameters

command

The command to execute to be able to print all the arguments

execute_builtin_command()

int execute_builtin_command	(	const Command *	command,
		CommandSequence *	sequence
	)

Executes a command.

Parameters

command	The command to execute
sequence	The command sequence to free

Returns

The status of the execution (0 if success, -1 if not a built-in command, 1 if error)

exit_shell()

int exit_shell	(	CommandSequence *	sequence,
		int	exit_code
	)

Exits the shell.

Parameters

sequence	The command sequence to free
exit_code	The exit code status

is_builtin_command()

int is_builtin_command	(	const Command *	command,
		const char *	expected
	)

Checks if the command is a built-in command.

Parameters

command	The command to check
expected	The expected command name

Returns

1 if the command is a built-in command, 0 if not