main.c File Reference

The entrypoint to the program. More...

#include <errno.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/wait.h>
#include <unistd.h>
#include "internal_commands.h"
#include "main.h"

Functions
int	main ()
	Execution starts here.
int	execute (int nargs, char *command, char **args)
	Executes the command.
int	load_settings ()
	Will load configuration file(s).
int	loop ()
	I keep looping, looping till the user exits.
char **	parse_line (char *line, size_t line_size, int *nargs)
	Tokenizes the line.
int	print_prompt ()
	Prints username@machinename.
int	read_line (char *buffer, int buffer_size)
	Reads a line from stdin.

Detailed Description

The entrypoint to the program.

Author

Swastik Pal

Version

0.1

Date

2022-11-03

Copyright

Copyright (c) 2022

Comments can be written in Markdown.

Function Documentation

execute()

int execute	(	int	nargs,
		char *	command,
		char **	args )

Executes the command.

Parameters

nargs	Number of arguments to the command.
command	The command to execute.
args	The list of arguments to the command.

Returns

int

Available commands:

• cls - clears the screen
• exit - terminates the terminal

load_settings()

int load_settings

(

)

Will load configuration file(s).

Not yet implemented.

loop()

int loop

(

)

I keep looping, looping till the user exits.

main()

int main

(

)

Execution starts here.

parse_line()

char ** parse_line	(	char *	line,
		size_t	line_size,
		int *	nargs )

Tokenizes the line.

Parameters

line	A string.
line_size	Length of the string.

Returns

char** An array of tokens.

print_prompt()

int print_prompt

(

)

Prints username@machinename.

read_line()

int read_line	(	char *	buffer,
		int	buffer_size )

Reads a line from stdin.

Parameters

buffer	The buffer to write into.
buffer_size	The size of the provided buffer.

Returns

int The number of characters read.