Desktop/xinu_mips-1.0.2.tar/xinu_mips-1.0.2/lib/libxc/fscanf.c File Reference

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Defines
#define	EMPTY   (-1)
#define	EOF   (-2)
#define	TTY_IOC_NEXTC   0x0028
Functions
static int	getch (int, int *)
static int	ungetch (int, int *)
int	_doscan (register char *, register int **, int(*)(), int(*)(), int, int)
int	fscanf (int dev, char *fmt, int args)

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Detailed Description

fscanf, getch, ungetch

Id

fscanf.c 1358 2008-06-30 03:48:37Z mschul

Definition in file fscanf.c.

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Define Documentation

#define EMPTY   (-1)

Definition at line 9 of file fscanf.c.

#define EOF   (-2)

Definition at line 10 of file fscanf.c.

#define TTY_IOC_NEXTC   0x0028

Definition at line 11 of file fscanf.c.

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Function Documentation

int _doscan	(	register char *	fmt,
		register int **	argp,
		int(*)()	getch,
		int(*)()	ungetch,
		int	arg1,
		int	arg2
	)

Scan and recognize input according to a format

Parameters:

	*fmt	format string for the scanf
	**argp	arguments to scanf
	getch	function to unget a character
	ungetch	function to unget a character
	arg1	1st argument to getch/ungetch
	arg2	2nd argument to getch/ungetch

Definition at line 47 of file doscan.c.

int fscanf	(	int	dev,
		char *	fmt,
		int	args
	)

Read from a device (file) according to a format.

Parameters:

	dev	device to read from
	*fmt	format string
	args	number of arguments in format string

Returns:

result of _doscan

Definition at line 24 of file fscanf.c.

References _doscan(), EMPTY, getch(), and ungetch().

static int getch	(	int	dev,
		int *	buf
	)			[static]

Get a character from a device with pushback.

Parameters:

	dev	device to read from
	*buf	buffer for reading into

Definition at line 37 of file fscanf.c.

References control(), EMPTY, EOF, getc(), and TTY_IOC_NEXTC.

Referenced by _doscan(), _innum(), _instr(), and fscanf().

static int ungetch	(	int	dev,
		int *	buf
	)			[static]

Pushback a character for getch.

Parameters:

	dev	device to push back to
	*buf	buffer for pushing back from

Definition at line 51 of file fscanf.c.

References EMPTY.

Referenced by _doscan(), _innum(), and fscanf().