sh.c File Reference

#include "types.h"
#include "user.h"
#include "fcntl.h"

Go to the source code of this file.

Data Structures
struct	cmd
struct	execcmd
struct	redircmd
struct	pipecmd
struct	listcmd
struct	backcmd

Macros
#define	EXEC   1
#define	REDIR   2
#define	PIPE   3
#define	LIST   4
#define	BACK   5
#define	MAXARGS   10

Functions
int	fork1 (void)
void	panic (char *)
struct cmd *	parsecmd (char *)
void	runcmd (struct cmd *cmd)
int	getcmd (char *buf, int nbuf)
int	main (void)
struct cmd *	execcmd (void)
struct cmd *	redircmd (struct cmd *subcmd, char *file, char *efile, int mode, int fd)
struct cmd *	pipecmd (struct cmd *left, struct cmd *right)
struct cmd *	listcmd (struct cmd *left, struct cmd *right)
struct cmd *	backcmd (struct cmd *subcmd)
int	gettoken (char **ps, char *es, char **q, char **eq)
int	peek (char **ps, char *es, char *toks)
struct cmd *	parseline (char **, char *)
struct cmd *	parsepipe (char **, char *)
struct cmd *	parseexec (char **, char *)
struct cmd *	nulterminate (struct cmd *)
struct cmd *	parseredirs (struct cmd *cmd, char **ps, char *es)
struct cmd *	parseblock (char **ps, char *es)

Variables
char	whitespace [] = " \t\r\n\v"
char	symbols [] = "<|>&;()"

Macro Definition Documentation

#define BACK   5

Definition at line 12 of file sh.c.

#define EXEC   1

Definition at line 8 of file sh.c.

#define LIST   4

Definition at line 11 of file sh.c.

#define MAXARGS   10

Definition at line 14 of file sh.c.

#define PIPE   3

Definition at line 10 of file sh.c.

#define REDIR   2

Definition at line 9 of file sh.c.

Function Documentation

struct cmd* backcmd

(

struct cmd *

subcmd)

Definition at line 250 of file sh.c.

struct cmd* execcmd

(

void

)

Definition at line 197 of file sh.c.

int fork1

(

void

)

Definition at line 183 of file sh.c.

int getcmd	(	char *	buf,
		int	nbuf
	)

Definition at line 134 of file sh.c.

int gettoken	(	char **	ps,
		char *	es,
		char **	q,
		char **	eq
	)

Definition at line 267 of file sh.c.

struct cmd* listcmd	(	struct cmd *	left,
		struct cmd *	right
	)

Definition at line 237 of file sh.c.

int main

(

void

)

Definition at line 145 of file sh.c.

struct cmd * nulterminate

(

struct cmd *

cmd)

Definition at line 451 of file sh.c.

void panic

(

char *

s)

Definition at line 106 of file console.c.

struct cmd* parseblock	(	char **	ps,
		char *	es
	)

Definition at line 401 of file sh.c.

struct cmd * parsecmd

(

char *

s)

Definition at line 329 of file sh.c.

struct cmd * parseexec	(	char **	ps,
		char *	es
	)

Definition at line 417 of file sh.c.

struct cmd * parseline	(	char **	ps,
		char *	es
	)

Definition at line 346 of file sh.c.

struct cmd * parsepipe	(	char **	ps,
		char *	es
	)

Definition at line 363 of file sh.c.

struct cmd* parseredirs	(	struct cmd *	cmd,
		char **	ps,
		char *	es
	)

Definition at line 376 of file sh.c.

int peek	(	char **	ps,
		char *	es,
		char *	toks
	)

Definition at line 312 of file sh.c.

struct cmd* pipecmd	(	struct cmd *	left,
		struct cmd *	right
	)

Definition at line 224 of file sh.c.

struct cmd* redircmd	(	struct cmd *	subcmd,
		char *	file,
		char *	efile,
		int	mode,
		int	fd
	)

Definition at line 208 of file sh.c.

void runcmd

(

struct cmd *

cmd)

Definition at line 58 of file sh.c.

Variable Documentation

char symbols[] = "<|>&;()"

Definition at line 264 of file sh.c.

char whitespace[] = " \t\r\n\v"

Definition at line 263 of file sh.c.