--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/packets.c	Sat Dec 06 05:41:29 1997 +0000
@@ -0,0 +1,321 @@
+/* $Id: packets.c,v 1.1.1.1 1997/12/06 05:41:29 darius Exp $ */
+
+#include <stddef.h>
+
+#include "defs.h"
+#include "packets.h"
+#include "gppackets.h"
+#include "wtext.h"
+
+size_t  client_packet_sizes[] = {
+    0,
+    sizeof(struct mesg_cpacket),
+    sizeof(struct speed_cpacket),
+    sizeof(struct dir_cpacket),
+    sizeof(struct phaser_cpacket),
+    sizeof(struct plasma_cpacket),
+    sizeof(struct torp_cpacket),
+    sizeof(struct quit_cpacket),
+    sizeof(struct login_cpacket),
+    sizeof(struct outfit_cpacket),
+    /* 10 v */
+    sizeof(struct war_cpacket),
+    sizeof(struct practr_cpacket),
+    sizeof(struct shield_cpacket),
+    sizeof(struct repair_cpacket),
+    sizeof(struct orbit_cpacket),
+    sizeof(struct planlock_cpacket),
+    sizeof(struct playlock_cpacket),
+    sizeof(struct bomb_cpacket),
+    sizeof(struct beam_cpacket),
+    sizeof(struct cloak_cpacket),
+    /* 20 v */
+    sizeof(struct det_torps_cpacket),
+    sizeof(struct det_mytorp_cpacket),
+    sizeof(struct copilot_cpacket),
+    sizeof(struct refit_cpacket),
+    sizeof(struct tractor_cpacket),
+    sizeof(struct repress_cpacket),
+    sizeof(struct coup_cpacket),
+    sizeof(struct socket_cpacket),
+    sizeof(struct options_cpacket),
+    sizeof(struct bye_cpacket),
+    /* 30 v */
+    sizeof(struct dockperm_cpacket),
+    sizeof(struct updates_cpacket),
+    sizeof(struct resetstats_cpacket),
+    sizeof(struct reserved_cpacket),
+    sizeof(struct scan_cpacket),
+    sizeof(struct udp_req_cpacket),
+    sizeof(struct sequence_cpacket),
+    sizeof(struct rsa_key_cpacket),
+    sizeof(struct obvious_packet),
+    0,
+    /* 40 v */
+    0,
+    0,
+    sizeof(struct ping_cpacket),/* 42 */
+#ifdef SHORT_PACKETS
+    sizeof(struct shortreq_cpacket),
+    sizeof(struct threshold_cpacket),
+    0,				/* CP_S_MESSAGE */
+    0,				/* CP_S_RESERVED */
+    0,				/* CP_S_DUMMY */
+#else
+    0,
+    0,
+    0,
+    0,
+    0,				/* 47 */
+#endif
+    0,				/* 48 */
+    0,
+    /* 50 v */
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,				/* 59 */
+#ifdef FEATURE
+    sizeof(struct feature_cpacket)	/* CP_FEATURE */
+#else
+  0
+#endif
+};
+
+#define num_cpacket_sizes	sizeof(client_packet_sizes)/sizeof(*client_packet_sizes)
+
+int 
+size_of_cpacket(pkt)
+    void   *pkt;
+{
+    CARD8   type;
+    CARD8   subtype;
+
+    type = ((CARD8 *) pkt)[0];
+    subtype = ((CARD8 *) pkt)[1];
+
+    if (type < num_cpacket_sizes && client_packet_sizes[type] > 0)
+	return client_packet_sizes[type];
+
+    switch (type) {
+#ifdef CP_FIRE_WEAPON
+    case CP_FIRE_WEAPON:
+	{
+	    struct fire_weapon_cpacket *fwp = pkt;
+	    return (fwp->mech == TM_POSITION) ? 12 : 4;
+	}
+#endif
+
+#ifdef SHORT_PACKETS
+    case CP_S_MESSAGE:
+	return ((unsigned char *) pkt)[3];
+    case CP_S_RESERVED:
+    case CP_S_DUMMY:
+	/* hmm? good question */
+	return 0;
+#endif				/* SHORT_PACKETS */
+
+    default:
+	return 0;
+    }
+}
+
+
+int     server_packet_sizes[] = {
+    0,				/* record 0 */
+    sizeof(struct mesg_spacket),/* SP_MESSAGE */
+    sizeof(struct plyr_info_spacket),	/* SP_PLAYER_INFO */
+    sizeof(struct kills_spacket),	/* SP_KILLS */
+    sizeof(struct player_spacket),	/* SP_PLAYER */
+    sizeof(struct torp_info_spacket),	/* SP_TORP_INFO */
+    sizeof(struct torp_spacket),/* SP_TORP */
+    sizeof(struct phaser_spacket),	/* SP_PHASER */
+    sizeof(struct plasma_info_spacket),	/* SP_PLASMA_INFO */
+    sizeof(struct plasma_spacket),	/* SP_PLASMA */
+    /* 10 v */
+    sizeof(struct warning_spacket),	/* SP_WARNING */
+    sizeof(struct motd_spacket),/* SP_MOTD */
+    sizeof(struct you_spacket),	/* SP_YOU */
+    sizeof(struct queue_spacket),	/* SP_QUEUE */
+    sizeof(struct status_spacket),	/* SP_STATUS */
+    sizeof(struct planet_spacket),	/* SP_PLANET */
+    sizeof(struct pickok_spacket),	/* SP_PICKOK */
+    sizeof(struct login_spacket),	/* SP_LOGIN */
+    sizeof(struct flags_spacket),	/* SP_FLAGS */
+    sizeof(struct mask_spacket),/* SP_MASK */
+    /* 20 v */
+    sizeof(struct pstatus_spacket),	/* SP_PSTATUS */
+    sizeof(struct badversion_spacket),	/* SP_BADVERSION */
+    sizeof(struct hostile_spacket),	/* SP_HOSTILE */
+    sizeof(struct stats_spacket),	/* SP_STATS */
+    sizeof(struct plyr_login_spacket),	/* SP_PL_LOGIN */
+    sizeof(struct reserved_spacket),	/* SP_RESERVED */
+    sizeof(struct planet_loc_spacket),	/* SP_PLANET_LOC */
+    sizeof(struct scan_spacket),/* SP_SCAN (ATM) */
+    sizeof(struct udp_reply_spacket),	/* SP_UDP_REPLY */
+    sizeof(struct sequence_spacket),	/* SP_SEQUENCE */
+    /* 30 v */
+    sizeof(struct sc_sequence_spacket),	/* SP_SC_SEQUENCE */
+    sizeof(struct rsa_key_spacket),	/* SP_RSA_KEY */
+    sizeof(struct motd_pic_spacket),	/* SP_MOTD_PIC */
+    sizeof(struct stats_spacket2),	/* SP_STATS2 */
+    sizeof(struct status_spacket2),	/* SP_STATUS2 */
+    sizeof(struct planet_spacket2),	/* SP_PLANET2 */
+    sizeof(struct obvious_packet),	/* SP_NEW_MOTD */
+    sizeof(struct thingy_spacket),	/* SP_THINGY */
+    sizeof(struct thingy_info_spacket),	/* SP_THINGY_INFO */
+    sizeof(struct ship_cap_spacket),	/* SP_SHIP_CAP */
+    /* 40 v */
+#ifdef SHORT_PACKETS
+    sizeof(struct shortreply_spacket),	/* SP_S_REPLY */
+    -1,				/* SP_S_MESSAGE */
+    -1,				/* SP_S_WARNING */
+    sizeof(struct youshort_spacket),	/* SP_S_YOU */
+    sizeof(struct youss_spacket),	/* SP_S_YOU_SS */
+    -1,				/* SP_S_PLAYER */
+#else
+    -1,
+    -1,
+    -1,
+    -1,
+    -1,
+    -1,
+#endif
+    sizeof(struct ping_spacket),/* SP_PING */
+    -1,				/* SP_S_TORP */
+    -1,				/* SP_S_TORP_INFO */
+    20,				/* SP_S_8_TORP */
+    /* 50 v */
+    -1,				/* SP_S_PLANET */
+    -1,				/* SP_GPARAM */
+    -1,				/* SP_PARADISE_EXT1 */
+    sizeof(struct terrain_packet2), /* SP_TERRAIN2 */
+    sizeof(struct terrain_info_packet2), /* SP_TERRAIN_INFO2 */
+    -1,
+    -1,
+    -1,
+    -1,
+    -1,
+    /* 60 v */
+#ifdef FEATURE
+    sizeof(struct feature_spacket),
+#else
+    -1,
+#endif
+    -1
+};
+
+#define num_spacket_sizes (sizeof(server_packet_sizes) / sizeof(server_packet_sizes[0]) - 1)
+
+#ifdef SHORT_PACKETS
+unsigned char numofbits[256] =
+{0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1,
+    2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 1,
+    2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2,
+    3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 1,
+    2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2,
+    3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 2,
+    3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3,
+    4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 1,
+    2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2,
+    3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 2,
+    3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3,
+    4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 2,
+    3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3,
+    4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 3,
+    4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 4,
+5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8};
+
+static int vtsize[9] =
+{4, 8, 8, 12, 12, 16, 20, 20, 24};	/* How big is the torppacket */
+int     vtisize[9] =
+{4, 7, 9, 11, 13, 16, 18, 20, 22};	/* 4 byte Header + torpdata */
+
+
+static int
+padto4(sz)
+    int     sz;
+{
+    return (sz % 4) ? (sz / 4 + 1) * 4 : sz;
+
+}
+#endif
+
+int
+size_of_spacket(pkt)
+    unsigned char *pkt;
+{
+    switch (pkt[0]) {
+    case SP_GPARAM:
+	switch (pkt[1]) {
+	case 0:
+	    return sizeof(struct gp_sizes_spacket);
+	case 1:
+	    return sizeof(struct gp_team_spacket);
+	case 2:
+	    return sizeof(struct gp_teamlogo_spacket);
+	case 3:
+	    return sizeof(struct gp_shipshape_spacket);
+	case 4:
+	    return sizeof(struct gp_shipbitmap_spacket);
+	case 5:
+	    return sizeof(struct gp_rank_spacket);
+	case 6:
+	    return sizeof(struct gp_royal_spacket);
+	case 7:
+	    return sizeof(struct gp_teamplanet_spacket);
+	default:
+	    return 0;
+	}
+#ifdef SHORT_PACKETS
+    case SP_S_MESSAGE:
+	return padto4(pkt[4]);	/* IMPORTANT  Changed */
+    case SP_S_WARNING:
+	if (pkt[1] == STEXTE_STRING ||
+	    pkt[1] == SHORT_WARNING) {
+	    return padto4(pkt[3]);
+	} else
+	    return 4;		/* Normal Packet */
+    case SP_S_PLAYER:
+	if (pkt[1] & 128) {	/* Small +extended Header */
+	    return padto4(((pkt[1] & 0x3f) * 4) + 4);
+	} else if (pkt[1] & 64) {	/* Small Header */
+	    return padto4(((pkt[1] & 0x3f) * 4) + 4);
+	} else {		/* Big Header */
+	    return padto4((pkt[1] * 4 + 12));
+	}
+    case SP_S_TORP:
+	return padto4(vtsize[numofbits[pkt[1]]]);
+    case SP_S_TORP_INFO:
+	return padto4((vtisize[numofbits[pkt[1]]] + numofbits[pkt[3]]));
+    case SP_S_PLANET:
+	return padto4((pkt[1] * VPLANET_SIZE) + 2);
+#endif
+    case SP_PARADISE_EXT1:
+	switch (pkt[1]) {
+	case SP_PE1_MISSING_BITMAP:
+	    return sizeof(struct pe1_missing_bitmap_spacket);
+	case SP_PE1_NUM_MISSILES:
+	    return sizeof(struct pe1_num_missiles_spacket);
+	default:
+	    return 0;
+	}
+#ifdef RECORDER
+    case REC_UPDATE:
+	{
+	    extern int playback;
+	    if (playback)	/* if not, something's very wrong... */
+		return 4;
+	}
+#endif
+    default:
+	return (*pkt < num_spacket_sizes && server_packet_sizes[*pkt] >= 0)
+	    ? server_packet_sizes[*pkt] : 0;
+    }
+}