1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
#ifndef _CLI_ARG_H_
#define _CLI_ARG_H_
#include <stddef.h>
#define ARG_INT 1
#define ARG_STR 2
#define ARG_IO 3
#define ARG_ARR 4
#define ARG_FLOAT 5
#define ARG_DOUBLE 6
#define offsetofa(type, field) ((int) ((char *) ((type *)0)->field))
typedef struct {
char *command; /* What to recognise, including the '-' symbol */
int type; /* ARG_??? */
int value; /* Set if this argument takes an argument */
char *def; /* NULL if non optional argument */
int offset; /* Offset into the 'store' address */
} cli_args;
/*
* Parses command line arguments.
* 'args' specifies an array cli_args. Each cli_arg contains a default. Each
* argument with a default of NULL are non optional. This function will return
* -1 if any of these arguments aren't specified, or if unknown arguments
* are specified. Returns 0 otherwise.
*/
extern int parse_args(cli_args *args, void *store, int argc, char **argv);
#endif
|
