139 lines
5.2 KiB
Markdown
139 lines
5.2 KiB
Markdown
# Minishell
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## Allowed Functions
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### `<fcntl.h>`
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* `open`
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* `int open(const char *pathname, int flags, ...);`
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* Opens a file specified by pathname. The flags argument determines the file access mode and file status flags.
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### `<dirent.h>`
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* `opendir`
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* `DIR *opendir(const char *name);`
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* Opens a directory stream corresponding to the directory name, and returns a pointer to the directory stream.
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* `readdir`
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* `struct dirent *readdir(DIR *dirp);`
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* Reads the next directory entry from the directory stream pointed to by dirp.
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* `closedir`
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* `int closedir(DIR *dirp);`
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* Closes the directory stream associated with dirp.
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### `<stdlib.h>`
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* `malloc`
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* `void *malloc(size_t size);`
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* Allocates size bytes of memory and returns a pointer to the allocated memory.
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* `free`
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* `void free(void *ptr);`
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* Frees the memory space pointed to by ptr, which must have been returned by a previous call to malloc.
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### `<stdio.h>`
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* `printf`
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* `int printf(const char *format, ...);`
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* Sends formatted output to stdout.
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### `<sys/stat.h>`
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* `stat`
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* `int stat(const char *pathname, struct stat *statbuf);`
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* Retrieves information about the file pointed to by pathname and fills in the stat structure.
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* `lstat`
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* `int lstat(const char *pathname, struct stat *statbuf);`
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* Similar to stat, but does not follow symbolic links.
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* `fstat`
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* `int fstat(int fd, struct stat *statbuf);`
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* Retrieves information about the file referred to by the open file descriptor fd.
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### `<sys/wait.h>`
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* `wait`
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* `pid_t wait(int *wstatus);`
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* Suspends execution of the calling process until one of its children terminates.
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* `waitpid`
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* `pid_t waitpid(pid_t pid, int *wstatus, int options);`
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* Suspends execution of the calling process until the child specified by pid changes state.
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* `wait3`
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* `pid_t wait3(int *wstatus, int options, struct rusage *rusage);`
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* Similar to wait, but also returns resource usage information.
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* `wait4`
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* `pid_t wait4(pid_t pid, int *wstatus, int options, struct rusage *rusage);`
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* Similar to waitpid, but also returns resource usage information.
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### `<signal.h>`
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* `signal`
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* `void (*signal(int signum, void (*handler)(int)))(int);`
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* Sets a function to handle signal signum.
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* `sigaction`
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* `int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact);`
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* Examines and changes the action associated with a specific signal.
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* `sigemptyset`
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* `int sigemptyset(sigset_t *set);`
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* Initializes the signal set pointed to by set to exclude all signals.
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* `sigaddset`
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* `int sigaddset(sigset_t *set, int signum);`
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* Adds the individual signal specified by signum to the signal set pointed to by set.
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* `kill`
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* `int kill(pid_t pid, int sig);`
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* Sends the signal sig to the process specified by pid.
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### `<unistd.h>`
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* `write`
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* `ssize_t write(int fd, const void *buf, size_t count);`
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* Writes up to count bytes from the buffer starting at buf to the file referred to by the file descriptor fd.
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* `access`
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* `int access(const char *pathname, int mode);`
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* Checks the file named by pathname for accessibility according to the bit pattern contained in mode.
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* `read`
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* `ssize_t read(int fd, void *buf, size_t count);`
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* Reads up to count bytes from file descriptor fd into the buffer starting at buf.
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* `close`
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* `int close(int fd);`
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* Closes the file descriptor fd.
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* `fork`
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* `pid_t fork(void);`
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* Creates a new process by duplicating the calling process.
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### `<readline/readline.h>`
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* `readline`
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* `char *readline(const char *prompt);`
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* Reads a line from the terminal with editing capabilities.
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* `rl_clear_history`
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* `void rl_clear_history(void);`
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* Clears the history of lines read by readline.
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* `rl_on_new_line`
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* `int rl_on_new_line(void);`
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* Resets the state to indicate that a new line of input is being read.
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* `rl_replace_line`
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* `int rl_replace_line(const char *text, int clear_undo);`
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* Replaces the contents of the current line with text.
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* `rl_redisplay`
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* `int rl_redisplay(void);`
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* Redisplays the current input line.
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* `add_history`
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* `void add_history(const char *line);`
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* Adds the line to the history list.
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### `<termios.h>`
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* `tcsetattr`
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* `int tcsetattr(int fd, int optional_actions, const struct termios *termios_p);`
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* Sets the parameters associated with the terminal referred to by fd.
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* `tcgetattr`
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* `int tcgetattr(int fd, struct termios *termios_p);`
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* Gets the parameters associated with the terminal referred to by fd.
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### `<term.h>`
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* `tgetent`
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* `int tgetent(char *bp, const char *name);`
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* Loads the entry for name from the termcap database.
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* `tgetflag`
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* `int tgetflag(const char *id);`
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* Gets the boolean entry for id from the termcap database.
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* `tgetnum`
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* `int tgetnum(const char *id);`
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* Gets the numeric entry for id from the termcap database.
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* `tgetstr`
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* `char *tgetstr(const char *id, char **area);`
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* Gets the string entry for id from the termcap database.
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* `tgoto`
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* `char *tgoto(const char *cap, int col, int row);`
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* Returns a cursor addressing string for the given capability cap.
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* `tputs`
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* `int tputs(const char *str, int affcnt, int (*putc)(int));`
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* Outputs the string str with padding.
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