minix/drivers/filter/optset.h

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#ifndef _OPTSET_H
#define _OPTSET_H
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typedef enum {
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OPT_BOOL,
OPT_STRING,
OPT_INT
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} opt_type;
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/* An entry for the parser of an options set. The 'os_name' field must point
* to a string, which is treated case-insensitively; the last entry of a table
* must have NULL name. The 'os_type' field must be set to one of the OPT_
* values defined above. The 'os_ptr' field must point to the field that is to
* receive the value of a recognized option. For OPT_STRING, it must point to a
* string of a size set in 'os_val'; the resulting string may be truncated, but
* will always be null-terminated. For OPT_BOOL, it must point to an int which
* will be set to the value in 'os_val' if the option is present. For OPT_INT,
* it must point to an int which will be set to the provided option value;
* 'os_val' is then a base passed to strtol().
*/
struct optset {
char *os_name;
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opt_type os_type;
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void *os_ptr;
int os_val;
};
_PROTOTYPE( void optset_parse, (struct optset *table, char *string) );
#endif /* _OPTSET_H */