Minishell

Allowed Functions

/*

• This file lists the functions and system calls used in the minishell project.
• Functions and system calls:
• • readline: Reads a line from the terminal.
• • rl_clear_history: Clears the history of lines read.
• • rl_on_new_line: Prepares for a new line of input.
• • rl_replace_line: Replaces the current line with a new one.
• • rl_redisplay: Redisplays the current input line.
• • add_history: Adds a line to the history.
• • printf: Prints formatted output to stdout.
• • malloc: Allocates memory dynamically.
• • free: Frees dynamically allocated memory.
• • write: Writes data to a file descriptor.
• • access: Checks a file's accessibility.
• • open: Opens a file.
• • read: Reads data from a file descriptor.
• • close: Closes a file descriptor.
• • fork: Creates a new process.
• • wait: Waits for a child process to change state.
• • waitpid: Waits for a specific child process to change state.
• • wait3: Waits for a child process to change state with resource usage statistics.
• • wait4: Waits for a specific child process to change state with resource usage statistics.
• • signal: Sets a signal handler.
• • sigaction: Examines and changes a signal action.
• • sigemptyset: Initializes an empty signal set.
• • sigaddset: Adds a signal to a signal set.
• • kill: Sends a signal to a process.
• • exit: Terminates the calling process.
• • getcwd: Gets the current working directory.
• • chdir: Changes the current working directory.
• • stat: Gets file status.
• • lstat: Gets file status, not following symbolic links.
• • fstat: Gets file status of an open file descriptor.
• • unlink: Deletes a name from the filesystem.
• • execve: Executes a program.
• • dup: Duplicates a file descriptor.
• • dup2: Duplicates a file descriptor to a specific value.
• • pipe: Creates a pipe.
• • opendir: Opens a directory stream.
• • readdir: Reads a directory entry.
• • closedir: Closes a directory stream.
• • strerror: Returns a string describing an error number.
• • perror: Prints a description of the last error.
• • isatty: Tests if a file descriptor refers to a terminal.
• • ttyname: Returns the name of the terminal associated with a file descriptor.
• • ttyslot: Returns the index of the current user's terminal.
• • ioctl: Manipulates the underlying device parameters of special files.
• • getenv: Gets an environment variable.
• • tcsetattr: Sets the parameters associated with the terminal.
• • tcgetattr: Gets the parameters associated with the terminal.
• • tgetent: Loads a terminal entry from the termcap database.
• • tgetflag: Gets a boolean entry from the termcap database.
• • tgetnum: Gets a numeric entry from the termcap database.
• • tgetstr: Gets a string entry from the termcap database.
• • tgoto: Computes a cursor movement string.
• • tputs: Outputs a string with padding.