wol.h

/* Some needed constants */
#define PACKET_BUF         17*6

#define MAC_ADDR_MAX       6
#define MAC_ADDR_STR_MAX   64

#define CONVERT_BASE       16

#define ADDR_LEN           16
#define REMOTE_ADDR        "255.255.255.255"
#define REMOTE_PORT        9

#define ARGS_BUF_MAX       128

#define USAGE              "Usage: %s [-r remoteaddr] [-f filename1, ...|mac1, ...]\n"

/**
* @brief Structure for mac address
*/
typedef struct
{
  unsigned char mac_addr[MAC_ADDR_MAX];
  char mac_addr_str[MAC_ADDR_STR_MAX];
} mac_addr_t;

/**
* @brief Structure for wol packet ( header )
*/
typedef struct
{
  char remote_addr[ADDR_LEN];
  mac_addr_t *mac_addr;
} wol_header_t;

/**
* @brief Sends the WOL magic packet to the given mac address
*
* @param wol_header WOL header packet
* @param sock       The socket to send the magic packet
*
* @return integer
*/
int sendWOL( const wol_header_t *wol_header, const int sock );

/**
 * @brief Creates the UDP socket to send the WOL magic packet
 *
 * @return integer
 */
int startupSocket( );

/**
* @brief Gets the next mac address from the terminal arguments
*
* @param argument The arguments
* @param length   The length of the arguments.
*
* @return mac_addr_t *
*/
mac_addr_t *nextAddrFromArg( char **argument, int length );

/**
* @brief Gets the next mac address from a file.
*
* @param filenames The filenames with the mac addresses on each line.
* @param length    The length of the filename array
*
* @return mac_addr_t *
*/
mac_addr_t *nextAddrFromFile( char **filenames, int length );

/**
* @brief Converts a mac address string to a mac address struct of type mac_addr_t
*
* @param mac       The mac address to convert
* @param packedMac The mac address struct of type mac_addr_t
*
* @return integer
*/
int packMacAddr( const char *mac, mac_addr_t *packedMac );