getopt.c File Reference

#include <err.h>
#include <errno.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>

Macros
#define	PRINT_ERROR   ((opterr) && (*options != ':'))
#define	FLAG_PERMUTE   0x01 /* permute non-options to the end of argv */
#define	FLAG_ALLARGS   0x02 /* treat non-options as args to option "-1" */
#define	FLAG_LONGONLY   0x04 /* operate as getopt_long_only */
#define	BADCH   (int)'?'
#define	BADARG   ((*options == ':') ? (int)':' : (int)'?')
#define	INORDER   (int)1
#define	EMSG   ""

Functions
static int	getopt_internal (int, char *const *, const char *, const struct option *, int *, int)
static int	parse_long_options (char *const *, const char *, const struct option *, int *, int, int)
static int	gcd (int, int)
static void	permute_args (int, int, int, char *const *)
int	getopt (int nargc, char *const *nargv, const char *options)
int	getopt_long (int nargc, char *const *nargv, const char *options, const struct option *long_options, int *idx)
int	getopt_long_only (int nargc, char *const *nargv, const char *options, const struct option *long_options, int *idx)

Variables
int	opterr = 1
int	optind = 1
int	optopt = '?'
int	optreset
char *	optarg
static char *	place = EMSG
static int	nonopt_start = -1
static int	nonopt_end = -1
static const char	recargchar [] = "option requires an argument -- %c"
static const char	recargstring [] = "option requires an argument -- %s"
static const char	ambig [] = "ambiguous option -- %.*s"
static const char	noarg [] = "option doesn't take an argument -- %.*s"
static const char	illoptchar [] = "unknown option -- %c"
static const char	illoptstring [] = "unknown option -- %s"

Macro Definition Documentation

BADARG

#define BADARG   ((*options == ':') ? (int)':' : (int)'?')

BADCH

#define BADCH   (int)'?'

EMSG

#define EMSG   ""

FLAG_ALLARGS

#define FLAG_ALLARGS   0x02 /* treat non-options as args to option "-1" */

FLAG_LONGONLY

#define FLAG_LONGONLY   0x04 /* operate as getopt_long_only */

FLAG_PERMUTE

#define FLAG_PERMUTE   0x01 /* permute non-options to the end of argv */

INORDER

#define INORDER   (int)1

PRINT_ERROR

#define PRINT_ERROR   ((opterr) && (*options != ':'))

Function Documentation

gcd()

static int gcd ( int  a, int  b  )

static

getopt()

int getopt	(	int	nargc,
		char *const *	nargv,
		const char *	options
	)

getopt_internal()

static int getopt_internal ( int  nargc, char *const *  nargv, const char *  options, const struct option *  long_options, int *  idx, int  flags  )

static

getopt_long()

int getopt_long	(	int	nargc,
		char *const *	nargv,
		const char *	options,
		const struct option *	long_options,
		int *	idx
	)

getopt_long_only()

int getopt_long_only	(	int	nargc,
		char *const *	nargv,
		const char *	options,
		const struct option *	long_options,
		int *	idx
	)

parse_long_options()

static int parse_long_options ( char *const *  nargv, const char *  options, const struct option *  long_options, int *  idx, int  short_too, int  flags  )

static

permute_args()

static void permute_args ( int  panonopt_start, int  panonopt_end, int  opt_end, char *const *  nargv  )

static

Variable Documentation

ambig

const char ambig[] = "ambiguous option -- %.*s"

static

illoptchar

const char illoptchar[] = "unknown option -- %c"

static

illoptstring

const char illoptstring[] = "unknown option -- %s"

static

noarg

const char noarg[] = "option doesn't take an argument -- %.*s"

static

nonopt_end

int nonopt_end = -1

static

nonopt_start

int nonopt_start = -1

static

optarg

char* optarg

opterr

int opterr = 1

optind

int optind = 1

optopt

int optopt = '?'

optreset

int optreset

place

char* place = EMSG

static

recargchar

const char recargchar[] = "option requires an argument -- %c"

static

recargstring

const char recargstring[] = "option requires an argument -- %s"

static