sendip_module.h

#ifndef _SENDIP_MODULE_H
#define _SENDIP_MODULE_H

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>   // for fprintf

#include "types.h"

/* Options
 */
typedef struct {
	const char *optname;
	const bool arg;
	const char *description;
	const char *def;
} sendip_option;

/* Data
 */
typedef struct {
	void *data;
	int alloc_len;
	unsigned int modified;
	void *private;		/* @@ Untouched by sendip main */
} sendip_data;

/* Prototypes */
#ifndef _SENDIP_MAIN
sendip_data *initialize(void);
bool do_opt(char *optstring, char *optarg, sendip_data *pack);
bool set_addr(char *hostname, sendip_data *pack);
bool finalize(char *hdrs, sendip_data *headers[], int index,
	sendip_data *data, sendip_data *pack);
int num_opts(void);
sendip_option *get_opts(void);
char get_optchar(void);

#endif  /* _SENDIP_MAIN */

#define usage_error(x) fprintf(stderr,x)

extern u_int16_t csum(u_int16_t *packet, int packlen);
extern int compact_string(char *data_out);
/*@@ added */
#define MAXRAND	8192	/* maximum length of random data */
u_int8_t * randombytes(int length);
int stringargument(char *input, char **output);
u_int32_t integerargument(char *input, int length);

const char * proto_to_name(u_int8_t proto, int nolookup);
u_int8_t name_to_proto(char *s);
u_int8_t header_type(const char hdr_char);
int outer_header(const char *hdrs, int index, const char *choices);
int inner_header(const char *hdrs, int index, const char *choices);

extern u_int16_t csumv(u_int16_t *packet[], int packlen[]);
/*@@ end added */

#endif  /* _SENDIP_MODULE_H */