6 * Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 #ifdef HAVE_SYS_TIME_H
30 #ifdef HAVE_WINSOCK2_H
31 # include <winsock2.h>
37 /* Encapsulation types. Choose names that truly reflect
38 * what is contained in the packet trace file.
40 * WTAP_ENCAP_PER_PACKET is a value passed to "wtap_dump_open()" or
41 * "wtap_dump_fd_open()" to indicate that there is no single encapsulation
42 * type for all packets in the file; this may cause those routines to
43 * fail if the capture file format being written can't support that.
44 * It's also returned by "wtap_file_encap()" for capture files that
45 * don't have a single encapsulation type for all packets in the file.
47 * WTAP_ENCAP_UNKNOWN is returned by "wtap_pcap_encap_to_wtap_encap()"
48 * if it's handed an unknown encapsulation.
50 * WTAP_ENCAP_FDDI_BITSWAPPED is for FDDI captures on systems where the
51 * MAC addresses you get from the hardware are bit-swapped. Ideally,
52 * the driver would tell us that, but I know of none that do, so, for
53 * now, we base it on the machine on which we're *reading* the
54 * capture, rather than on the machine on which the capture was taken
55 * (they're probably likely to be the same). We assume that they're
56 * bit-swapped on everything except for systems running Ultrix, Alpha
57 * systems, and BSD/OS systems (that's what "tcpdump" does; I guess
58 * Digital decided to bit-swap addresses in the hardware or in the
59 * driver, and I guess BSDI bit-swapped them in the driver, given that
60 * BSD/OS generally runs on Boring Old PC's). If we create a wiretap
61 * save file format, we'd use the WTAP_ENCAP values to flag the
62 * encapsulation of a packet, so there we'd at least be able to base
63 * it on the machine on which the capture was taken.
65 * WTAP_ENCAP_LINUX_ATM_CLIP is the encapsulation you get with the
66 * ATM on Linux code from <http://linux-atm.sourceforge.net/>;
67 * that code adds a DLT_ATM_CLIP DLT_ code of 19, and that
68 * encapsulation isn't the same as the DLT_ATM_RFC1483 encapsulation
69 * presumably used on some BSD systems, which we turn into
70 * WTAP_ENCAP_ATM_RFC1483.
72 * WTAP_ENCAP_NULL corresponds to DLT_NULL from "libpcap". This
75 * 1) PPP-over-HDLC encapsulation, at least with some versions
76 * of ISDN4BSD (but not the current ones, it appears, unless
77 * I've missed something);
79 * 2) a 4-byte header containing the AF_ address family, in
80 * the byte order of the machine that saved the capture,
81 * for the packet, as used on many BSD systems for the
82 * loopback device and some other devices, or a 4-byte header
83 * containing the AF_ address family in network byte order,
84 * as used on recent OpenBSD systems for the loopback device;
86 * 3) a 4-byte header containing 2 octets of 0 and an Ethernet
87 * type in the byte order from an Ethernet header, that being
88 * what older versions of "libpcap" on Linux turn the Ethernet
89 * header for loopback interfaces into (0.6.0 and later versions
90 * leave the Ethernet header alone and make it DLT_EN10MB). */
91 #define WTAP_ENCAP_PER_PACKET -1
92 #define WTAP_ENCAP_UNKNOWN 0
93 #define WTAP_ENCAP_ETHERNET 1
94 #define WTAP_ENCAP_TOKEN_RING 2
95 #define WTAP_ENCAP_SLIP 3
96 #define WTAP_ENCAP_PPP 4
97 #define WTAP_ENCAP_FDDI 5
98 #define WTAP_ENCAP_FDDI_BITSWAPPED 6
99 #define WTAP_ENCAP_RAW_IP 7
100 #define WTAP_ENCAP_ARCNET 8
101 #define WTAP_ENCAP_ARCNET_LINUX 9
102 #define WTAP_ENCAP_ATM_RFC1483 10
103 #define WTAP_ENCAP_LINUX_ATM_CLIP 11
104 #define WTAP_ENCAP_LAPB 12
105 #define WTAP_ENCAP_ATM_PDUS 13
106 #define WTAP_ENCAP_ATM_PDUS_UNTRUNCATED 14
107 #define WTAP_ENCAP_NULL 15
108 #define WTAP_ENCAP_ASCEND 16
109 #define WTAP_ENCAP_ISDN 17
110 #define WTAP_ENCAP_IP_OVER_FC 18
111 #define WTAP_ENCAP_PPP_WITH_PHDR 19
112 #define WTAP_ENCAP_IEEE_802_11 20
113 #define WTAP_ENCAP_PRISM_HEADER 21
114 #define WTAP_ENCAP_IEEE_802_11_WITH_RADIO 22
115 #define WTAP_ENCAP_IEEE_802_11_WLAN_RADIOTAP 23
116 #define WTAP_ENCAP_IEEE_802_11_WLAN_AVS 24
117 #define WTAP_ENCAP_SLL 25
118 #define WTAP_ENCAP_FRELAY 26
119 #define WTAP_ENCAP_FRELAY_WITH_PHDR 27
120 #define WTAP_ENCAP_CHDLC 28
121 #define WTAP_ENCAP_CISCO_IOS 29
122 #define WTAP_ENCAP_LOCALTALK 30
123 #define WTAP_ENCAP_OLD_PFLOG 31
124 #define WTAP_ENCAP_HHDLC 32
125 #define WTAP_ENCAP_DOCSIS 33
126 #define WTAP_ENCAP_COSINE 34
127 #define WTAP_ENCAP_WFLEET_HDLC 35
128 #define WTAP_ENCAP_SDLC 36
129 #define WTAP_ENCAP_TZSP 37
130 #define WTAP_ENCAP_ENC 38
131 #define WTAP_ENCAP_PFLOG 39
132 #define WTAP_ENCAP_CHDLC_WITH_PHDR 40
133 #define WTAP_ENCAP_BLUETOOTH_H4 41
134 #define WTAP_ENCAP_MTP2 42
135 #define WTAP_ENCAP_MTP3 43
136 #define WTAP_ENCAP_IRDA 44
137 #define WTAP_ENCAP_USER0 45
138 #define WTAP_ENCAP_USER1 46
139 #define WTAP_ENCAP_USER2 47
140 #define WTAP_ENCAP_USER3 48
141 #define WTAP_ENCAP_USER4 49
142 #define WTAP_ENCAP_USER5 50
143 #define WTAP_ENCAP_USER6 51
144 #define WTAP_ENCAP_USER7 52
145 #define WTAP_ENCAP_USER8 53
146 #define WTAP_ENCAP_USER9 54
147 #define WTAP_ENCAP_USER10 55
148 #define WTAP_ENCAP_USER11 56
149 #define WTAP_ENCAP_USER12 57
150 #define WTAP_ENCAP_USER13 58
151 #define WTAP_ENCAP_USER14 59
152 #define WTAP_ENCAP_USER15 60
153 #define WTAP_ENCAP_SYMANTEC 61
154 #define WTAP_ENCAP_APPLE_IP_OVER_IEEE1394 62
155 #define WTAP_ENCAP_BACNET_MS_TP 63
156 #define WTAP_ENCAP_NETTL_RAW_ICMP 64
157 #define WTAP_ENCAP_NETTL_RAW_ICMPV6 65
158 #define WTAP_ENCAP_GPRS_LLC 67
159 #define WTAP_ENCAP_JUNIPER_ATM1 68
160 #define WTAP_ENCAP_JUNIPER_ATM2 69
161 #define WTAP_ENCAP_REDBACK 70
162 #define WTAP_ENCAP_NETTL_RAW_IP 71
163 #define WTAP_ENCAP_NETTL_ETHERNET 72
164 #define WTAP_ENCAP_NETTL_TOKEN_RING 73
165 #define WTAP_ENCAP_NETTL_FDDI 74
166 #define WTAP_ENCAP_NETTL_UNKNOWN 75
167 #define WTAP_ENCAP_MTP2_WITH_PHDR 76
168 #define WTAP_ENCAP_JUNIPER_PPPOE 77
169 /* last WTAP_ENCAP_ value + 1 */
170 #define WTAP_NUM_ENCAP_TYPES 78
172 /* File types that can be read by wiretap.
173 We support writing some many of these file types, too, so we
174 distinguish between different versions of them. */
175 #define WTAP_FILE_UNKNOWN 0
176 #define WTAP_FILE_WTAP 1
177 #define WTAP_FILE_PCAP 2
178 #define WTAP_FILE_PCAP_SS990417 3
179 #define WTAP_FILE_PCAP_SS990915 4
180 #define WTAP_FILE_PCAP_SS991029 5
181 #define WTAP_FILE_PCAP_NOKIA 6
182 #define WTAP_FILE_PCAP_AIX 7
183 #define WTAP_FILE_LANALYZER 8
184 #define WTAP_FILE_NGSNIFFER_UNCOMPRESSED 9
185 #define WTAP_FILE_NGSNIFFER_COMPRESSED 10
186 #define WTAP_FILE_SNOOP 11
187 #define WTAP_FILE_SHOMITI 12
188 #define WTAP_FILE_IPTRACE_1_0 13
189 #define WTAP_FILE_IPTRACE_2_0 14
190 #define WTAP_FILE_NETMON_1_x 15
191 #define WTAP_FILE_NETMON_2_x 16
192 #define WTAP_FILE_NETXRAY_OLD 17
193 #define WTAP_FILE_NETXRAY_1_0 18
194 #define WTAP_FILE_NETXRAY_1_1 19
195 #define WTAP_FILE_NETXRAY_2_00x 20
196 #define WTAP_FILE_RADCOM 21
197 #define WTAP_FILE_ASCEND 22
198 #define WTAP_FILE_NETTL 23
199 #define WTAP_FILE_TOSHIBA 24
200 #define WTAP_FILE_I4BTRACE 25
201 #define WTAP_FILE_CSIDS 26
202 #define WTAP_FILE_PPPDUMP 27
203 #define WTAP_FILE_ETHERPEEK_V56 28
204 #define WTAP_FILE_ETHERPEEK_V7 29
205 #define WTAP_FILE_VMS 30
206 #define WTAP_FILE_DBS_ETHERWATCH 31
207 #define WTAP_FILE_VISUAL_NETWORKS 32
208 #define WTAP_FILE_COSINE 33
209 #define WTAP_FILE_5VIEWS 34
210 #define WTAP_FILE_ERF 35
211 #define WTAP_FILE_HCIDUMP 36
212 #define WTAP_FILE_NETWORK_INSTRUMENTS_V9 37
213 #define WTAP_FILE_AIROPEEK_V9 38
214 #define WTAP_FILE_EYESDN 39
216 /* last WTAP_FILE_ value + 1 */
217 #define WTAP_NUM_FILE_TYPES 40
220 * Maximum packet size we'll support.
221 * It must be at least 65535.
223 #define WTAP_MAX_PACKET_SIZE 65535
226 * "Pseudo-headers" are used to supply to the clients of wiretap
227 * per-packet information that's not part of the packet payload
230 * NOTE: do not use pseudo-header structures to hold information
231 * used by the code to read a particular capture file type; to
232 * keep that sort of state information, add a new structure for
233 * that private information to "wtap-int.h", add a pointer to that
234 * type of structure to the "capture" member of the "struct wtap"
235 * structure, and allocate one of those structures and set that member
236 * in the "open" routine for that capture file type if the open
237 * succeeds. See various other capture file type handlers for examples
241 /* Packet "pseudo-header" information for Ethernet capture files. */
243 gint fcs_len; /* Number of bytes of FCS - -1 means "unknown" */
246 /* Packet "pseudo-header" information for X.25 capture files. */
247 #define FROM_DCE 0x80
249 guint8 flags; /* ENCAP_LAPB, ENCAP_V120 : 1st bit means From DCE */
252 /* Packet "pseudo-header" information for ISDN capture files. */
257 guint8 channel; /* 0 = D-channel; n = B-channel n */
260 /* Packet "pseudo-header" for ATM capture files.
261 Not all of this information is supplied by all capture types. */
266 #define ATM_RAW_CELL 0x01 /* TRUE if the packet is a single cell */
271 #define AAL_UNKNOWN 0 /* AAL unknown */
272 #define AAL_1 1 /* AAL1 */
273 #define AAL_2 2 /* AAL2 */
274 #define AAL_3_4 3 /* AAL3/4 */
275 #define AAL_5 4 /* AAL5 */
276 #define AAL_USER 5 /* User AAL */
277 #define AAL_SIGNALLING 6 /* Signaling AAL */
278 #define AAL_OAMCELL 7 /* OAM cell */
283 #define TRAF_UNKNOWN 0 /* Unknown */
284 #define TRAF_LLCMX 1 /* LLC multiplexed (RFC 1483) */
285 #define TRAF_VCMX 2 /* VC multiplexed (RFC 1483) */
286 #define TRAF_LANE 3 /* LAN Emulation */
287 #define TRAF_ILMI 4 /* ILMI */
288 #define TRAF_FR 5 /* Frame Relay */
289 #define TRAF_SPANS 6 /* FORE SPANS */
290 #define TRAF_IPSILON 7 /* Ipsilon */
295 #define TRAF_ST_UNKNOWN 0 /* Unknown */
300 #define TRAF_ST_VCMX_802_3_FCS 1 /* 802.3 with an FCS */
301 #define TRAF_ST_VCMX_802_4_FCS 2 /* 802.4 with an FCS */
302 #define TRAF_ST_VCMX_802_5_FCS 3 /* 802.5 with an FCS */
303 #define TRAF_ST_VCMX_FDDI_FCS 4 /* FDDI with an FCS */
304 #define TRAF_ST_VCMX_802_6_FCS 5 /* 802.6 with an FCS */
305 #define TRAF_ST_VCMX_802_3 7 /* 802.3 without an FCS */
306 #define TRAF_ST_VCMX_802_4 8 /* 802.4 without an FCS */
307 #define TRAF_ST_VCMX_802_5 9 /* 802.5 without an FCS */
308 #define TRAF_ST_VCMX_FDDI 10 /* FDDI without an FCS */
309 #define TRAF_ST_VCMX_802_6 11 /* 802.6 without an FCS */
310 #define TRAF_ST_VCMX_FRAGMENTS 12 /* Fragments */
311 #define TRAF_ST_VCMX_BPDU 13 /* BPDU */
316 #define TRAF_ST_LANE_LE_CTRL 1 /* LANE: LE Ctrl */
317 #define TRAF_ST_LANE_802_3 2 /* LANE: 802.3 */
318 #define TRAF_ST_LANE_802_5 3 /* LANE: 802.5 */
319 #define TRAF_ST_LANE_802_3_MC 4 /* LANE: 802.3 multicast */
320 #define TRAF_ST_LANE_802_5_MC 5 /* LANE: 802.5 multicast */
325 #define TRAF_ST_IPSILON_FT0 1 /* Ipsilon: Flow Type 0 */
326 #define TRAF_ST_IPSILON_FT1 2 /* Ipsilon: Flow Type 1 */
327 #define TRAF_ST_IPSILON_FT2 3 /* Ipsilon: Flow Type 2 */
330 guint32 flags; /* status flags */
331 guint8 aal; /* AAL of the traffic */
332 guint8 type; /* traffic type */
333 guint8 subtype; /* traffic subtype */
334 guint16 vpi; /* virtual path identifier */
335 guint16 vci; /* virtual circuit identifier */
336 guint16 channel; /* link: 0 for DTE->DCE, 1 for DCE->DTE */
337 guint16 cells; /* number of cells */
338 guint16 aal5t_u2u; /* user-to-user indicator */
339 guint16 aal5t_len; /* length of the packet */
340 guint32 aal5t_chksum; /* checksum for AAL5 packet */
343 /* Packet "pseudo-header" for the output from "wandsession", "wannext",
344 "wandisplay", and similar commands on Lucent/Ascend access equipment. */
346 #define ASCEND_MAX_STR_LEN 64
348 #define ASCEND_PFX_WDS_X 1
349 #define ASCEND_PFX_WDS_R 2
350 #define ASCEND_PFX_WDD 3
351 #define ASCEND_PFX_ISDN_X 4
352 #define ASCEND_PFX_ISDN_R 5
353 #define ASCEND_PFX_ETHER 6
356 guint16 type; /* ASCEND_PFX_*, as defined above */
357 char user[ASCEND_MAX_STR_LEN]; /* Username, from wandsession header */
358 guint32 sess; /* Session number, from wandsession header */
359 char call_num[ASCEND_MAX_STR_LEN]; /* Called number, from WDD header */
360 guint32 chunk; /* Chunk number, from WDD header */
361 guint32 task; /* Task number */
364 /* Packet "pseudo-header" for point-to-point links with direction flags. */
366 gboolean sent; /* TRUE=sent, FALSE=received */
369 /* Packet "pseudo-header" information for 802.11
370 Radio information is only present for WTAP_ENCAP_IEEE_802_11_WITH_RADIO. */
371 struct ieee_802_11_phdr {
372 gint fcs_len; /* Number of bytes of FCS - -1 means "unknown" */
373 guint8 channel; /* Channel number */
374 guint8 data_rate; /* in .5 Mb/s units */
375 guint8 signal_level; /* percentage */
378 /* Packet "pseudo-header" for the output from CoSine L2 debug output. */
380 #define COSINE_MAX_IF_NAME_LEN 128
382 #define COSINE_ENCAP_TEST 1
383 #define COSINE_ENCAP_PPoATM 2
384 #define COSINE_ENCAP_PPoFR 3
385 #define COSINE_ENCAP_ATM 4
386 #define COSINE_ENCAP_FR 5
387 #define COSINE_ENCAP_HDLC 6
388 #define COSINE_ENCAP_PPP 7
389 #define COSINE_ENCAP_ETH 8
390 #define COSINE_ENCAP_UNKNOWN 99
392 #define COSINE_DIR_TX 1
393 #define COSINE_DIR_RX 2
396 guint8 encap; /* COSINE_ENCAP_* as defined above */
397 guint8 direction; /* COSINE_DIR_*, as defined above */
398 char if_name[COSINE_MAX_IF_NAME_LEN]; /* Encap & Logical I/F name */
399 guint16 pro; /* Protocol */
400 guint16 off; /* Offset */
401 guint16 pri; /* Priority */
402 guint16 rm; /* Rate Marking */
403 guint16 err; /* Error Code */
406 /* Packet "pseudo-header" for IrDA capture files. */
409 * Direction of the packet
411 #define IRDA_INCOMING 0x0000
412 #define IRDA_OUTGOING 0x0004
415 * "Inline" log messages produced by IrCOMM2k on Windows
417 #define IRDA_LOG_MESSAGE 0x0100 /* log message */
418 #define IRDA_MISSED_MSG 0x0101 /* missed log entry or frame */
421 * Differentiate between frames and log messages
423 #define IRDA_CLASS_FRAME 0x0000
424 #define IRDA_CLASS_LOG 0x0100
425 #define IRDA_CLASS_MASK 0xFF00
428 guint16 pkttype; /* packet type */
431 /* Packet "pseudo-header" for nettl (HP-UX) capture files. */
441 /* Packet "pseudo-header" for MTP2 files. */
449 union wtap_pseudo_header {
452 struct isdn_phdr isdn;
454 struct ascend_phdr ascend;
456 struct ieee_802_11_phdr ieee_802_11;
457 struct cosine_phdr cosine;
458 struct irda_phdr irda;
459 struct nettl_phdr nettl;
460 struct mtp2_phdr mtp2;
474 typedef struct wtap wtap;
475 typedef struct wtap_dumper wtap_dumper;
478 * On failure, "wtap_open_offline()" returns NULL, and puts into the
479 * "int" pointed to by its second argument:
481 * a positive "errno" value if the capture file can't be opened;
483 * a negative number, indicating the type of error, on other failures.
485 struct wtap* wtap_open_offline(const char *filename, int *err,
486 gchar **err_info, gboolean do_random);
488 /* Returns TRUE if read was successful. FALSE if failure. data_offset is
489 * set the the offset in the file where the data for the read packet is
491 gboolean wtap_read(wtap *wth, int *err, gchar **err_info,
494 struct wtap_pkthdr *wtap_phdr(wtap *wth);
495 union wtap_pseudo_header *wtap_pseudoheader(wtap *wth);
496 guint8 *wtap_buf_ptr(wtap *wth);
498 int wtap_fd(wtap *wth);
499 int wtap_snapshot_length(wtap *wth); /* per file */
500 int wtap_file_type(wtap *wth);
501 int wtap_file_encap(wtap *wth);
503 const char *wtap_file_type_string(int filetype);
504 const char *wtap_file_type_short_string(int filetype);
505 int wtap_short_string_to_file_type(const char *short_name);
507 const char *wtap_encap_string(int encap);
508 const char *wtap_encap_short_string(int encap);
509 int wtap_short_string_to_encap(const char *short_name);
511 const char *wtap_strerror(int err);
512 void wtap_sequential_close(wtap *wth);
513 void wtap_close(wtap *wth);
514 gboolean wtap_seek_read (wtap *wth, long seek_off,
515 union wtap_pseudo_header *pseudo_header, guint8 *pd, int len,
516 int *err, gchar **err_info);
518 gboolean wtap_dump_can_open(int filetype);
519 gboolean wtap_dump_can_write_encap(int filetype, int encap);
520 wtap_dumper* wtap_dump_open(const char *filename, int filetype, int encap,
521 int snaplen, int *err);
522 wtap_dumper* wtap_dump_fdopen(int fd, int filetype, int encap, int snaplen,
524 gboolean wtap_dump(wtap_dumper *, const struct wtap_pkthdr *,
525 const union wtap_pseudo_header *pseudo_header, const guchar *, int *err);
526 FILE* wtap_dump_file(wtap_dumper *);
527 gboolean wtap_dump_close(wtap_dumper *, int *);
528 long wtap_get_bytes_dumped(wtap_dumper *);
529 void wtap_set_bytes_dumped(wtap_dumper *wdh, long bytes_dumped);
532 * Wiretap error codes.
534 #define WTAP_ERR_NOT_REGULAR_FILE -1
535 /* The file being opened for reading isn't a plain file (or pipe) */
536 #define WTAP_ERR_RANDOM_OPEN_PIPE -2
537 /* The file is being opened for random access and it's a pipe */
538 #define WTAP_ERR_FILE_UNKNOWN_FORMAT -3
539 /* The file being opened is not a capture file in a known format */
540 #define WTAP_ERR_UNSUPPORTED -4
541 /* Supported file type, but there's something in the file we
543 #define WTAP_ERR_CANT_WRITE_TO_PIPE -5
544 /* Wiretap can't save to a pipe in the specified format */
545 #define WTAP_ERR_CANT_OPEN -6
546 /* The file couldn't be opened, reason unknown */
547 #define WTAP_ERR_UNSUPPORTED_FILE_TYPE -7
548 /* Wiretap can't save files in the specified format */
549 #define WTAP_ERR_UNSUPPORTED_ENCAP -8
550 /* Wiretap can't read or save files in the specified format with the
551 specified encapsulation */
552 #define WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED -9
553 /* The specified format doesn't support per-packet encapsulations */
554 #define WTAP_ERR_CANT_CLOSE -10
555 /* The file couldn't be closed, reason unknown */
556 #define WTAP_ERR_CANT_READ -11
557 /* An attempt to read failed, reason unknown */
558 #define WTAP_ERR_SHORT_READ -12
559 /* An attempt to read read less data than it should have */
560 #define WTAP_ERR_BAD_RECORD -13
561 /* We read an invalid record */
562 #define WTAP_ERR_SHORT_WRITE -14
563 /* An attempt to write wrote less data than it should have */
564 #define WTAP_ERR_UNC_TRUNCATED -15
565 /* Sniffer compressed data was oddly truncated */
566 #define WTAP_ERR_UNC_OVERFLOW -16
567 /* Uncompressing Sniffer data would overflow buffer */
568 #define WTAP_ERR_UNC_BAD_OFFSET -17
569 /* LZ77 compressed data has bad offset to string */
570 #define WTAP_ERR_RANDOM_OPEN_STDIN -18
571 /* We're trying to open the standard input for random access */
573 /* Errors from zlib; zlib error Z_xxx turns into Wiretap error
574 WTAP_ERR_ZLIB + Z_xxx.
576 WTAP_ERR_ZLIB_MIN and WTAP_ERR_ZLIB_MAX bound the range of zlib
577 errors; we leave room for 100 positive and 100 negative error
580 #define WTAP_ERR_ZLIB -200
581 #define WTAP_ERR_ZLIB_MAX -100
582 #define WTAP_ERR_ZLIB_MIN -300
585 #endif /* __WTAP_H__ */