NAME

SYNOPSIS

#include ”test.h”
#include ”usctest.h”

char *parse_opts(int argc, char *argv[], 
                 option_t option_array[],
                 void (*user_help_func)());

DESCRIPTION

option_array is a pointer to the first element of an array of option_t. If no additional options are needed, pass NULL. option_t is declared in usctest.h as

typedef struct {



char	*option;
int	*flag;
char	**arg;



} option_t;

The meanings of the different fields are:

option

is a valid option string to be given to getopt().

flag

is a pointer to an integer location to set true if option is given in argv. This can be NULL if the option doesn't require an argument.

arg

is a pointer to a character pointer variable that will be set with the option argument if the option is present in argv. This pointer MUST be provided if the option can take an argument. Failure to provide a location will cause parse_opts() to return an error.

user_help_func is a pointer to a function that will be called when the -h option is found. This function should print help messages for the options in option_array to standard out. The standard help messages are formatted such that the option designator starts in column 3 and the description starts in column 11.

STANDARD OPTIONS

-c n

Run n copies of the test in parallel. This is done by forking n times and running the test as usual. If -i or -I are specified, each process will run for that amount of time.

-e

Turn on logging all errno's received. This option is to facilitate security audit testing for MLS.

-f

Suppresses functional testing messages.

-h

Print help message. The standard options will be printed first, then a call to user_help_func() will be made.

-i n

Run for n iterations. A value of 0 makes the test loop infinitely. (default 1)

-I x

The test will loop until x seconds have passed. (default 0.0)

-p

Pause for SIGUSR1 before testing. The test will pause where you place TEST_PAUSE. Warning: The test will also fork at this point if -c is used.

-P x

This option will do a delay of x seconds after each iteration. (default 0.0)

-t

Produce timing statistics. *NOT IMPLEMENTED*

The STD_* flags are used by system call test macros defined in usctest.h (see usctest(3)), or may be used in the user's code.

RETURN VALUE

EXAMPLE

int fflag, Tflag;	/* binary flags: opt or not */
char *Topt;		/* option arguments */
option_t options[] = {
	{ "F", &fflag, NULL },		/* No argument */
	{ "T:",	&Tflag, &Topt },	/* argument required */
	{ NULL, NULL, NULL }		/* NULL required to end array */
};
void help()
{
	printf("  -F       An option with no argument\n");
	printf("  -T opt   An option that requires an argument\n");
}
int main(int argc, char *argv[])
{
	char *msg;
	if ((msg = parse_opts(argc, argv, options, &help)) != NULL)
		error_exit(msg);
	return 0;
}

The following example shows how to use parse_opts() without defining new options.

int main(int argc, char *argv[])
{
	char *msg;
	if ((msg = parse_opts(argc, argv, NULL, NULL)) != NULL)
		error_exit(msg);
	return 0;
}

SEE ALSO