Bug Summary

File:builds/wireshark/wireshark/capinfos.c
Warning:line 743, column 5
Potential leak of memory pointed to by 'buf'

Annotated Source Code

Press '?' to see keyboard shortcuts

clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name capinfos.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -pic-is-pie -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -ffloat16-excess-precision=fast -fbfloat16-excess-precision=fast -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/builds/wireshark/wireshark/build -fcoverage-compilation-dir=/builds/wireshark/wireshark/build -resource-dir /usr/lib/llvm-18/lib/clang/18 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -I /builds/wireshark/wireshark/wiretap -D _GLIBCXX_ASSERTIONS -internal-isystem /usr/lib/llvm-18/lib/clang/18/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -Wno-format-truncation -Wno-format-nonliteral -Wno-pointer-sign -std=gnu11 -ferror-limit 19 -fvisibility=hidden -fwrapv -fstrict-flex-arrays=3 -stack-protector 2 -fstack-clash-protection -fcf-protection=full -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fexceptions -fcolor-diagnostics -analyzer-output=html -dwarf-debug-flags /usr/lib/llvm-18/bin/clang -### --analyze -x c -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -I /builds/wireshark/wireshark/wiretap -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -fvisibility=hidden -fexcess-precision=fast -fstrict-flex-arrays=3 -fstack-clash-protection -fcf-protection=full -D _GLIBCXX_ASSERTIONS -fstack-protector-strong -fno-delete-null-pointer-checks -fno-strict-overflow -fno-strict-aliasing -fexceptions -Wno-format-truncation -Wno-format-nonliteral -fdiagnostics-color=always -Wno-pointer-sign -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -std=gnu11 -fPIE /builds/wireshark/wireshark/capinfos.c -o /builds/wireshark/wireshark/sbout/2024-11-18-100252-3912-1 -Xclang -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /builds/wireshark/wireshark/sbout/2024-11-18-100252-3912-1 -x c /builds/wireshark/wireshark/capinfos.c
1/* capinfos.c
2 * Reports capture file information including # of packets, duration, others
3 *
4 * Copyright 2004 Ian Schorr
5 *
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <[email protected]>
8 * Copyright 1998 Gerald Combs
9 *
10 * SPDX-License-Identifier: GPL-2.0-or-later
11 */
12
13/*
14 * 2009-09-19: jyoung
15 *
16 * New capinfos features
17 *
18 * Continue processing additional files after
19 * a wiretap open failure. The new -C option
20 * reverts to capinfos' original behavior which
21 * is to cancel any further file processing at
22 * first file open failure.
23 *
24 * Change the behavior of how the default display
25 * of all infos is initiated. This gets rid of a
26 * special post getopt() argument count test.
27 *
28 * Add new table output format (with related options)
29 * This feature allows outputting the various infos
30 * into a tab delimited text file, or to a comma
31 * separated variables file (*.csv) instead of the
32 * original "long" format.
33 *
34 * 2011-04-05: wmeier
35 * behaviour changed: Upon exit capinfos will return
36 * an error status if an error occurred at any
37 * point during "continuous" file processing.
38 * (Previously a success status was always
39 * returned if the -C option was not used).
40 *
41 */
42
43
44#include <config.h>
45#define WS_LOG_DOMAIN"Main" LOG_DOMAIN_MAIN"Main"
46
47#include <stdio.h>
48#include <stdlib.h>
49#include <string.h>
50#include <stdarg.h>
51#include <locale.h>
52
53#include <ws_exit_codes.h>
54#include <wsutil/ws_getopt.h>
55
56#include <glib.h>
57
58#include <wiretap/wtap.h>
59
60#include <wsutil/cmdarg_err.h>
61#include <wsutil/filesystem.h>
62#include <wsutil/privileges.h>
63#include <cli_main.h>
64#include <wsutil/version_info.h>
65#include <wiretap/wtap_opttypes.h>
66
67#ifdef HAVE_PLUGINS1
68#include <wsutil/plugins.h>
69#endif
70
71#include <wsutil/str_util.h>
72#include <wsutil/to_str.h>
73#include <wsutil/file_util.h>
74#include <wsutil/ws_assert.h>
75#include <wsutil/wslog.h>
76
77#include <gcrypt.h>
78
79#include "ui/failure_message.h"
80
81/*
82 * By default capinfos now continues processing
83 * the next filename if and when wiretap detects
84 * a problem opening or reading a file.
85 * Use the '-C' option to revert back to original
86 * capinfos behavior which is to abort any
87 * additional file processing at the first file
88 * open or read failure.
89 */
90
91static bool_Bool stop_after_failure;
92
93/*
94 * table report variables
95 */
96
97static bool_Bool long_report = true1; /* By default generate long report */
98static bool_Bool table_report_header = true1; /* Generate column header by default */
99static char field_separator = '\t'; /* Use TAB as field separator by default */
100static char quote_char = '\0'; /* Do NOT quote fields by default */
101static bool_Bool machine_readable; /* Display machine-readable numbers */
102
103/*
104 * capinfos has the ability to report on a number of
105 * various characteristics ("infos") for each input file.
106 *
107 * By default reporting of all info fields is enabled.
108 *
109 * Optionally the reporting of any specific info field
110 * or combination of info fields can be enabled with
111 * individual options.
112 */
113
114static bool_Bool report_all_infos = true1; /* Report all infos */
115
116static bool_Bool cap_file_type = true1; /* Report capture type */
117static bool_Bool cap_file_encap = true1; /* Report encapsulation */
118static bool_Bool cap_snaplen = true1; /* Packet size limit (snaplen)*/
119static bool_Bool cap_packet_count = true1; /* Report packet count */
120static bool_Bool cap_file_size = true1; /* Report file size */
121static bool_Bool cap_comment = true1; /* Display the capture comment */
122static bool_Bool cap_file_more_info = true1; /* Report more file info */
123static bool_Bool cap_file_idb = true1; /* Report Interface info */
124static bool_Bool cap_file_nrb = true1; /* Report Name Resolution Block info */
125static bool_Bool cap_file_dsb = true1; /* Report Decryption Secrets Block info */
126
127static bool_Bool cap_data_size = true1; /* Report packet byte size */
128static bool_Bool cap_duration = true1; /* Report capture duration */
129static bool_Bool cap_earliest_packet_time = true1; /* Report timestamp of earliest packet */
130static bool_Bool cap_latest_packet_time = true1; /* Report timestamp of latest packet */
131static bool_Bool time_as_secs; /* Report time values as raw seconds */
132
133static bool_Bool cap_data_rate_byte = true1; /* Report data rate bytes/sec */
134static bool_Bool cap_data_rate_bit = true1; /* Report data rate bites/sec */
135static bool_Bool cap_packet_size = true1; /* Report average packet size */
136static bool_Bool cap_packet_rate = true1; /* Report average packet rate */
137static bool_Bool cap_order = true1; /* Report if packets are in chronological order (True/False) */
138static bool_Bool pkt_comments = true1; /* Report individual packet comments */
139
140static bool_Bool cap_file_hashes = true1; /* Calculate file hashes */
141
142// Strongest to weakest
143#define HASH_SIZE_SHA25632 32
144#define HASH_SIZE_SHA120 20
145
146#define HASH_STR_SIZE(65) (65) /* Max hash size * 2 + '\0' */
147#define HASH_BUF_SIZE(1024 * 1024) (1024 * 1024)
148
149
150static char file_sha256[HASH_STR_SIZE(65)];
151static char file_sha1[HASH_STR_SIZE(65)];
152
153static char *hash_buf;
154static gcry_md_hd_t hd;
155
156static unsigned int num_ipv4_addresses;
157static unsigned int num_ipv6_addresses;
158static unsigned int num_decryption_secrets;
159
160/*
161 * If we have at least two packets with time stamps, and they're not in
162 * order - i.e., the later packet has a time stamp older than the earlier
163 * packet - the time stamps are known not to be in order.
164 *
165 * If every packet has a time stamp, and they're all in order, the time
166 * stamp is known to be in order.
167 *
168 * Otherwise, we have no idea.
169 */
170typedef enum {
171 IN_ORDER,
172 NOT_IN_ORDER,
173 ORDER_UNKNOWN
174} order_t;
175
176typedef struct _pkt_cmt {
177 int recno;
178 char *cmt;
179 struct _pkt_cmt *next;
180} pkt_cmt;
181
182typedef struct _capture_info {
183 const char *filename;
184 uint16_t file_type;
185 wtap_compression_type compression_type;
186 int file_encap;
187 int file_tsprec;
188 wtap *wth;
189 int64_t filesize;
190 uint64_t packet_bytes;
191 bool_Bool times_known;
192 nstime_t earliest_packet_time;
193 int earliest_packet_time_tsprec;
194 nstime_t latest_packet_time;
195 int latest_packet_time_tsprec;
196 uint32_t packet_count;
197 bool_Bool snap_set; /* If set in capture file header */
198 uint32_t snaplen; /* value from the capture file header */
199 uint32_t snaplen_min_inferred; /* If caplen < len for 1 or more rcds */
200 uint32_t snaplen_max_inferred; /* ... */
201 bool_Bool drops_known;
202 uint32_t drop_count;
203
204 nstime_t duration;
205 int duration_tsprec;
206 double packet_rate;
207 double packet_size;
208 double data_rate; /* in bytes/s */
209 bool_Bool know_order;
210 order_t order;
211
212 int *encap_counts; /* array of per_packet encap counts; array has one entry per wtap_encap type */
213 pkt_cmt *pkt_cmts; /* list of packet comments */
214
215 unsigned int num_interfaces; /* number of IDBs, and thus size of interface_packet_counts array */
216 GArray *interface_packet_counts; /* array of per_packet interface_id counts; one entry per file IDB */
217 uint32_t pkt_interface_id_unknown; /* counts if packet interface_id didn't match a known one */
218 GArray *idb_info_strings; /* array of IDB info strings */
219} capture_info;
220
221static char *decimal_point;
222
223static void
224enable_all_infos(void)
225{
226 report_all_infos = true1;
227
228 cap_file_type = true1;
229 cap_file_encap = true1;
230 cap_snaplen = true1;
231 cap_packet_count = true1;
232 cap_file_size = true1;
233 cap_comment = true1;
234 pkt_comments = true1;
235 cap_file_more_info = true1;
236 cap_file_idb = true1;
237 cap_file_nrb = true1;
238 cap_file_dsb = true1;
239
240 cap_data_size = true1;
241 cap_duration = true1;
242 cap_earliest_packet_time = true1;
243 cap_latest_packet_time = true1;
244 cap_order = true1;
245
246 cap_data_rate_byte = true1;
247 cap_data_rate_bit = true1;
248 cap_packet_size = true1;
249 cap_packet_rate = true1;
250
251 cap_file_hashes = true1;
252}
253
254static void
255disable_all_infos(void)
256{
257 report_all_infos = false0;
258
259 cap_file_type = false0;
260 cap_file_encap = false0;
261 cap_snaplen = false0;
262 cap_packet_count = false0;
263 cap_file_size = false0;
264 cap_comment = false0;
265 pkt_comments = false0;
266 cap_file_more_info = false0;
267 cap_file_idb = false0;
268 cap_file_nrb = false0;
269 cap_file_dsb = false0;
270
271 cap_data_size = false0;
272 cap_duration = false0;
273 cap_earliest_packet_time = false0;
274 cap_latest_packet_time = false0;
275 cap_order = false0;
276
277 cap_data_rate_byte = false0;
278 cap_data_rate_bit = false0;
279 cap_packet_size = false0;
280 cap_packet_rate = false0;
281
282 cap_file_hashes = false0;
283}
284
285static const char *
286order_string(order_t order)
287{
288 switch (order) {
289
290 case IN_ORDER:
291 return "True";
292
293 case NOT_IN_ORDER:
294 return "False";
295
296 case ORDER_UNKNOWN:
297 return "Unknown";
298
299 default:
300 return "???"; /* "cannot happen" (the next step is "Profit!") */
301 }
302}
303
304static char *
305absolute_time_string(nstime_t *timer, int tsprecision, capture_info *cf_info)
306{
307 /*
308 * https://web.archive.org/web/20120513133703/http://www.idrbt.ac.in/publications/workingpapers/Working%20Paper%20No.%209.pdf
309 *
310 * says:
311 *
312 * A 64-bit Unix time would be safe for the indefinite future, as
313 * this variable would not overflow until 2**63 or
314 * 9,223,372,036,854,775,808 (over nine quintillion) seconds
315 * after the beginning of the Unix epoch - corresponding to
316 * GMT 15:30:08, Sunday, 4th December, 292,277,026,596.
317 *
318 * So, if we're displaying the time as YYYY-MM-DD HH:MM:SS.SSSSSSSSS,
319 * we'll have the buffer be large enough for a date of the format
320 * 292277026596-MM-DD HH:MM:SS.SSSSSSSSS, which is the biggest value
321 * you'll get with a 64-bit time_t and a nanosecond-resolution
322 * fraction-of-a-second.
323 *
324 * That's 12+1+2+1+2+1+2+1+2+2+2+1+9+1, including the terminating
325 * \0, or 39.
326 *
327 * If we're displaying the time as epoch time, and the time is
328 * unsigned, 2^64-1 is 18446744073709551615, so the buffer has
329 * to be big enough for 18446744073709551615.999999999. That's
330 * 20+1+9+1, including the terminating '\0', or 31. If it's
331 * signed, 2^63 is 9223372036854775808, so the buffer has to
332 * be big enough for -9223372036854775808.999999999, which is
333 * again 20+1+9+1, or 31.
334 *
335 * So we go with 39.
336 */
337 static char time_string_buf[39];
338
339 if (cf_info->times_known && cf_info->packet_count > 0) {
340 if (time_as_secs) {
341 display_epoch_time(time_string_buf, sizeof time_string_buf, timer, tsprecision);
342 } else {
343 format_nstime_as_iso8601(time_string_buf, sizeof time_string_buf, timer, decimal_point, true1, tsprecision);
344 }
345 } else {
346 snprintf(time_string_buf, sizeof time_string_buf, "n/a");
347 }
348 return time_string_buf;
349}
350
351static char *
352relative_time_string(nstime_t *timer, int tsprecision, capture_info *cf_info, bool_Bool want_seconds)
353{
354 const char *second = want_seconds ? " second" : "";
355 const char *plural = want_seconds ? "s" : "";
356 /*
357 * If we're displaying the time as epoch time, and the time is
358 * unsigned, 2^64-1 is 18446744073709551615, so the buffer has
359 * to be big enough for "18446744073709551615.999999999 seconds".
360 * That's 20+1+9+1+7+1, including the terminating '\0', or 39.
361 * If it'ssigned, 2^63 is 9223372036854775808, so the buffer has to
362 * be big enough for "-9223372036854775808.999999999 seconds",
363 * which is again 20+1+9+1+7+1, or 39.
364 */
365 static char time_string_buf[39];
366
367 if (cf_info->times_known && cf_info->packet_count > 0) {
368 char *ptr;
369 size_t remaining;
370 int num_bytes;
371
372 ptr = time_string_buf;
373 remaining = sizeof time_string_buf;
374 num_bytes = snprintf(ptr, remaining,
375 "%"PRId64"l" "d",
376 (int64_t)timer->secs);
377 if (num_bytes < 0) {
378 /*
379 * That got an error.
380 * Not much else we can do.
381 */
382 snprintf(ptr, remaining, "snprintf() failed");
383 return time_string_buf;
384 }
385 if ((unsigned int)num_bytes >= remaining) {
386 /*
387 * That filled up or would have overflowed the buffer.
388 * Nothing more we can do.
389 */
390 return time_string_buf;
391 }
392 ptr += num_bytes;
393 remaining -= num_bytes;
394
395 if (tsprecision != 0) {
396 /*
397 * Append the fractional part.
398 */
399 num_bytes = format_fractional_part_nsecs(ptr, remaining, timer->nsecs, decimal_point, tsprecision);
400 if ((unsigned int)num_bytes >= remaining) {
401 /*
402 * That filled up or would have overflowed the buffer.
403 * Nothing more we can do.
404 */
405 return time_string_buf;
406 }
407 ptr += num_bytes;
408 remaining -= num_bytes;
409 }
410
411 /*
412 * Append the units.
413 */
414 snprintf(ptr, remaining, "%s%s",
415 second,
416 timer->secs == 1 ? "" : plural);
417
418 return time_string_buf;
419 }
420
421 snprintf(time_string_buf, sizeof time_string_buf, "n/a");
422 return time_string_buf;
423}
424
425static void print_value(const char *text_p1, int width, const char *text_p2, double value)
426{
427 if (value > 0.0)
428 printf("%s%.*f%s\n", text_p1, width, value, text_p2);
429 else
430 printf("%sn/a\n", text_p1);
431}
432
433/* multi-line comments would conflict with the formatting that capinfos uses
434 we replace linefeeds with spaces */
435static void
436string_replace_newlines(char *str)
437{
438 char *p;
439
440 if (str) {
441 p = str;
442 while (*p != '\0') {
443 if (*p == '\n')
444 *p = ' ';
445 if (*p == '\r')
446 *p = ' ';
447 p++;
448 }
449 }
450}
451
452static void
453show_option_string(const char *prefix, const char *option_str)
454{
455 char *str;
456
457 if (option_str != NULL((void*)0) && option_str[0] != '\0') {
458 str = g_strdup(option_str)g_strdup_inline (option_str);
459 string_replace_newlines(str);
460 printf("%s%s\n", prefix, str);
461 g_free(str);
462 }
463}
464
465static void
466print_stats(const char *filename, capture_info *cf_info)
467{
468 const char *file_type_string, *file_encap_string;
469 char *size_string;
470 pkt_cmt *p, *prev;
471
472 /* Build printable strings for various stats */
473 if (machine_readable) {
474 file_type_string = wtap_file_type_subtype_name(cf_info->file_type);
475 file_encap_string = wtap_encap_name(cf_info->file_encap);
476 }
477 else {
478 file_type_string = wtap_file_type_subtype_description(cf_info->file_type);
479 file_encap_string = wtap_encap_description(cf_info->file_encap);
480 }
481
482 if (filename) printf ("File name: %s\n", filename);
483 if (cap_file_type) {
484 const char *compression_type_description;
485 compression_type_description = wtap_compression_type_description(cf_info->compression_type);
486 if (compression_type_description == NULL((void*)0))
487 printf ("File type: %s\n",
488 file_type_string);
489 else
490 printf ("File type: %s (%s)\n",
491 file_type_string, compression_type_description);
492 }
493 if (cap_file_encap) {
494 printf ("File encapsulation: %s\n", file_encap_string);
495 if (cf_info->file_encap == WTAP_ENCAP_PER_PACKET-1) {
496 int i;
497 printf ("Encapsulation in use by packets (# of pkts):\n");
498 for (i=0; i<WTAP_NUM_ENCAP_TYPESwtap_get_num_encap_types(); i++) {
499 if (cf_info->encap_counts[i] > 0)
500 printf(" %s (%d)\n",
501 wtap_encap_description(i), cf_info->encap_counts[i]);
502 }
503 }
504 }
505 if (cap_file_more_info) {
506 printf ("File timestamp precision: %s (%d)\n",
507 wtap_tsprec_string(cf_info->file_tsprec), cf_info->file_tsprec);
508 }
509
510 if (cap_snaplen && cf_info->snap_set)
511 printf ("Packet size limit: file hdr: %u bytes\n", cf_info->snaplen);
512 else if (cap_snaplen && !cf_info->snap_set)
513 printf ("Packet size limit: file hdr: (not set)\n");
514 if (cf_info->snaplen_max_inferred > 0) {
515 if (cf_info->snaplen_min_inferred == cf_info->snaplen_max_inferred)
516 printf ("Packet size limit: inferred: %u bytes\n", cf_info->snaplen_min_inferred);
517 else
518 printf ("Packet size limit: inferred: %u bytes - %u bytes (range)\n",
519 cf_info->snaplen_min_inferred, cf_info->snaplen_max_inferred);
520 }
521 if (cap_packet_count) {
522 printf ("Number of packets: ");
523 if (machine_readable) {
524 printf ("%u\n", cf_info->packet_count);
525 } else {
526 size_string = format_size(cf_info->packet_count, FORMAT_SIZE_UNIT_NONE, 0)format_size_wmem(((void*)0), cf_info->packet_count, FORMAT_SIZE_UNIT_NONE
, 0);
527 printf ("%s\n", size_string);
528 g_free(size_string);
529 }
530 }
531 if (cap_file_size) {
532 printf ("File size: ");
533 if (machine_readable) {
534 printf ("%" PRId64"l" "d" " bytes\n", cf_info->filesize);
535 } else {
536 size_string = format_size(cf_info->filesize, FORMAT_SIZE_UNIT_BYTES, 0)format_size_wmem(((void*)0), cf_info->filesize, FORMAT_SIZE_UNIT_BYTES
, 0);
537 printf ("%s\n", size_string);
538 g_free(size_string);
539 }
540 }
541 if (cap_data_size) {
542 printf ("Data size: ");
543 if (machine_readable) {
544 printf ("%" PRIu64"l" "u" " bytes\n", cf_info->packet_bytes);
545 } else {
546 size_string = format_size(cf_info->packet_bytes, FORMAT_SIZE_UNIT_BYTES, 0)format_size_wmem(((void*)0), cf_info->packet_bytes, FORMAT_SIZE_UNIT_BYTES
, 0);
547 printf ("%s\n", size_string);
548 g_free(size_string);
549 }
550 }
551 if (cf_info->times_known) {
552 if (cap_duration) /* XXX - shorten to hh:mm:ss */
553 printf("Capture duration: %s\n", relative_time_string(&cf_info->duration, cf_info->duration_tsprec, cf_info, true1));
554 if (cap_earliest_packet_time)
555 printf("Earliest packet time: %s\n", absolute_time_string(&cf_info->earliest_packet_time, cf_info->earliest_packet_time_tsprec, cf_info));
556 if (cap_latest_packet_time)
557 printf("Latest packet time: %s\n", absolute_time_string(&cf_info->latest_packet_time, cf_info->latest_packet_time_tsprec, cf_info));
558 if (cap_data_rate_byte) {
559 printf("Data byte rate: ");
560 if (machine_readable) {
561 print_value("", 2, " bytes/sec", cf_info->data_rate);
562 } else {
563 size_string = format_size((int64_t)cf_info->data_rate, FORMAT_SIZE_UNIT_BYTES_S, 0)format_size_wmem(((void*)0), (int64_t)cf_info->data_rate, FORMAT_SIZE_UNIT_BYTES_S
, 0);
564 printf ("%s\n", size_string);
565 g_free(size_string);
566 }
567 }
568 if (cap_data_rate_bit) {
569 printf("Data bit rate: ");
570 if (machine_readable) {
571 print_value("", 2, " bits/sec", cf_info->data_rate*8);
572 } else {
573 size_string = format_size((int64_t)(cf_info->data_rate*8), FORMAT_SIZE_UNIT_BITS_S, 0)format_size_wmem(((void*)0), (int64_t)(cf_info->data_rate*
8), FORMAT_SIZE_UNIT_BITS_S, 0);
574 printf ("%s\n", size_string);
575 g_free(size_string);
576 }
577 }
578 }
579 if (cap_packet_size) printf("Average packet size: %.2f bytes\n", cf_info->packet_size);
580 if (cf_info->times_known) {
581 if (cap_packet_rate) {
582 printf("Average packet rate: ");
583 if (machine_readable) {
584 print_value("", 2, " packets/sec", cf_info->packet_rate);
585 } else {
586 size_string = format_size((int64_t)cf_info->packet_rate, FORMAT_SIZE_UNIT_PACKETS_S, 0)format_size_wmem(((void*)0), (int64_t)cf_info->packet_rate
, FORMAT_SIZE_UNIT_PACKETS_S, 0);
587 printf ("%s\n", size_string);
588 g_free(size_string);
589 }
590 }
591 }
592 if (cap_file_hashes) {
593 printf ("SHA256: %s\n", file_sha256);
594 printf ("SHA1: %s\n", file_sha1);
595 }
596 if (cap_order) printf ("Strict time order: %s\n", order_string(cf_info->order));
597
598 bool_Bool has_multiple_sections = (wtap_file_get_num_shbs(cf_info->wth) > 1);
599
600 for (unsigned int section_number = 0;
601 section_number < wtap_file_get_num_shbs(cf_info->wth);
602 section_number++) {
603 wtap_block_t shb;
604
605 // If we have more than one section, add headers for each section.
606 if (has_multiple_sections)
607 printf("Section %u:\n\n", section_number);
608
609 shb = wtap_file_get_shb(cf_info->wth, section_number);
610 if (shb != NULL((void*)0)) {
611 if (cap_file_more_info) {
612 char *str;
613
614 if (wtap_block_get_string_option_value(shb, OPT_SHB_HARDWARE2, &str) == WTAP_OPTTYPE_SUCCESS)
615 show_option_string("Capture hardware: ", str);
616 if (wtap_block_get_string_option_value(shb, OPT_SHB_OS3, &str) == WTAP_OPTTYPE_SUCCESS)
617 show_option_string("Capture oper-sys: ", str);
618 if (wtap_block_get_string_option_value(shb, OPT_SHB_USERAPPL4, &str) == WTAP_OPTTYPE_SUCCESS)
619 show_option_string("Capture application: ", str);
620 }
621 if (cap_comment) {
622 unsigned int i;
623 char *str;
624
625 for (i = 0; wtap_block_get_nth_string_option_value(shb, OPT_COMMENT1, i, &str) == WTAP_OPTTYPE_SUCCESS; i++) {
626 show_option_string("Capture comment: ", str);
627 }
628 }
629 }
630 }
631
632 if (pkt_comments && cf_info->pkt_cmts != NULL((void*)0)) {
633 for (p = cf_info->pkt_cmts; p != NULL((void*)0); prev = p, p = p->next, g_free(prev)) {
634 if (machine_readable){
635 printf("Packet %d Comment: %s\n", p->recno, g_strescape(p->cmt, NULL((void*)0)));
636 } else {
637 printf("Packet %d Comment: %s\n", p->recno, p->cmt);
638 }
639 g_free(p->cmt);
640 }
641 }
642
643 if (cap_file_idb && cf_info->num_interfaces != 0) {
644 unsigned int i;
645 ws_assert(cf_info->num_interfaces == cf_info->idb_info_strings->len)do { if ((1) && !(cf_info->num_interfaces == cf_info
->idb_info_strings->len)) ws_log_fatal_full("Main", LOG_LEVEL_ERROR
, "capinfos.c", 645, __func__, "assertion failed: %s", "cf_info->num_interfaces == cf_info->idb_info_strings->len"
); } while (0);
646 printf ("Number of interfaces in file: %u\n", cf_info->num_interfaces);
647 for (i = 0; i < cf_info->idb_info_strings->len; i++) {
648 char *s = g_array_index(cf_info->idb_info_strings, char*, i)(((char**) (void *) (cf_info->idb_info_strings)->data) [
(i)]);
649 uint32_t packet_count = 0;
650 if (i < cf_info->interface_packet_counts->len)
651 packet_count = g_array_index(cf_info->interface_packet_counts, uint32_t, i)(((uint32_t*) (void *) (cf_info->interface_packet_counts)->
data) [(i)]);
652 printf ("Interface #%u info:\n", i);
653 printf ("%s", s);
654 printf (" Number of packets = %u\n", packet_count);
655 }
656 }
657
658 if (cap_file_nrb) {
659 if (num_ipv4_addresses != 0)
660 printf ("Number of resolved IPv4 addresses in file: %u\n", num_ipv4_addresses);
661 if (num_ipv6_addresses != 0)
662 printf ("Number of resolved IPv6 addresses in file: %u\n", num_ipv6_addresses);
663 }
664 if (cap_file_dsb) {
665 if (num_decryption_secrets != 0)
666 printf ("Number of decryption secrets in file: %u\n", num_decryption_secrets);
667 }
668}
669
670static void
671putsep(void)
672{
673 if (field_separator) putchar(field_separator);
674}
675
676static void
677putquote(void)
678{
679 if (quote_char) putchar(quote_char);
680}
681
682static void
683print_stats_table_header_label(const char *label)
684{
685 putsep();
686 putquote();
687 printf("%s", label);
688 putquote();
689}
690
691static void
692print_stats_table_header(capture_info *cf_info)
693{
694 pkt_cmt *p;
695 char *buf;
696 size_t buf_len;
697
698 putquote();
699 printf("File name");
700 putquote();
701
702 if (cap_file_type) print_stats_table_header_label("File type");
35
←
Assuming 'cap_file_type' is false
→
36
←
Taking false branch
→
703 if (cap_file_encap) print_stats_table_header_label("File encapsulation");
37
←
Assuming 'cap_file_encap' is false
→
38
←
Taking false branch
→
704 if (cap_file_more_info) print_stats_table_header_label("File time precision");
39
←
Assuming 'cap_file_more_info' is false
→
40
←
Taking false branch
→
705 if (cap_snaplen) {
41
←
Assuming 'cap_snaplen' is false
→
42
←
Taking false branch
→
706 print_stats_table_header_label("Packet size limit");
707 print_stats_table_header_label("Packet size limit min (inferred)");
708 print_stats_table_header_label("Packet size limit max (inferred)");
709 }
710 if (cap_packet_count) print_stats_table_header_label("Number of packets");
43
←
Assuming 'cap_packet_count' is false
→
44
←
Taking false branch
→
711 if (cap_file_size) print_stats_table_header_label("File size (bytes)");
45
←
Assuming 'cap_file_size' is false
→
46
←
Taking false branch
→
712 if (cap_data_size) print_stats_table_header_label("Data size (bytes)");
47
←
Assuming 'cap_data_size' is false
→
48
←
Taking false branch
→
713 if (cap_duration) print_stats_table_header_label("Capture duration (seconds)");
49
←
Assuming 'cap_duration' is false
→
50
←
Taking false branch
→
714 if (cap_earliest_packet_time) print_stats_table_header_label("Start time");
51
←
Assuming 'cap_earliest_packet_time' is false
→
52
←
Taking false branch
→
715 if (cap_latest_packet_time) print_stats_table_header_label("End time");
53
←
Assuming 'cap_latest_packet_time' is false
→
54
←
Taking false branch
→
716 if (cap_data_rate_byte) print_stats_table_header_label("Data byte rate (bytes/sec)");
55
←
Assuming 'cap_data_rate_byte' is false
→
56
←
Taking false branch
→
717 if (cap_data_rate_bit) print_stats_table_header_label("Data bit rate (bits/sec)");
57
←
Assuming 'cap_data_rate_bit' is false
→
58
←
Taking false branch
→
718 if (cap_packet_size) print_stats_table_header_label("Average packet size (bytes)");
59
←
Assuming 'cap_packet_size' is false
→
60
←
Taking false branch
→
719 if (cap_packet_rate) print_stats_table_header_label("Average packet rate (packets/sec)");
61
←
Assuming 'cap_packet_rate' is false
→
62
←
Taking false branch
→
720 if (cap_file_hashes) {
63
←
Assuming 'cap_file_hashes' is false
→
64
←
Taking false branch
→
721 print_stats_table_header_label("SHA256");
722 print_stats_table_header_label("SHA1");
723 }
724 if (cap_order) print_stats_table_header_label("Strict time order");
65
←
Assuming 'cap_order' is false
→
66
←
Taking false branch
→
725 if (cap_file_more_info
66.1
'cap_file_more_info' is false
) {
67
←
Taking false branch
→
726 print_stats_table_header_label("Capture hardware");
727 print_stats_table_header_label("Capture oper-sys");
728 print_stats_table_header_label("Capture application");
729 }
730 if (cap_comment) print_stats_table_header_label("Capture comment");
68
←
Assuming 'cap_comment' is false
→
731
732 if (pkt_comments && cf_info->pkt_cmts != NULL((void*)0)) {
69
←
Assuming 'pkt_comments' is true
→
70
←
Assuming field 'pkt_cmts' is not equal to NULL
→
71
←
Taking true branch
→
733 /* Packet 2^64 Comment" + NULL */
734 buf_len = strlen("Packet 18446744073709551616 Comment") + 1;
735 buf = (char *)g_malloc0(buf_len);
72
←
Memory is allocated
→
736
737 for (p = cf_info->pkt_cmts; p
72.1
'p' is not equal to NULL
 != NULL((void*)0); p = p->next) {
73
←
Loop condition is true. Entering loop body
→
74
←
Assuming 'p' is equal to NULL
→
75
←
Loop condition is false. Execution continues on line 743
→
738 snprintf(buf, buf_len, "Packet %d Comment", p->recno);
739 print_stats_table_header_label(buf);
740 }
741 }
742
743 printf("\n");
76
←
Potential leak of memory pointed to by 'buf'
744}
745
746static void
747print_stats_table(const char *filename, capture_info *cf_info)
748{
749 const char *file_type_string, *file_encap_string;
750 pkt_cmt *p, *prev;
751
752 /* Build printable strings for various stats */
753 file_type_string = wtap_file_type_subtype_name(cf_info->file_type);
754 file_encap_string = wtap_encap_name(cf_info->file_encap);
755
756 if (filename) {
757 putquote();
758 printf("%s", filename);
759 putquote();
760 }
761
762 if (cap_file_type) {
763 putsep();
764 putquote();
765 printf("%s", file_type_string);
766 putquote();
767 }
768
769 /* ToDo: If WTAP_ENCAP_PER_PACKET, show the list of encapsulations encountered;
770 * Output a line for each different encap with all fields repeated except
771 * the encapsulation field which has "Per Packet: ..." for each
772 * encapsulation type seen ?
773 */
774 if (cap_file_encap) {
775 putsep();
776 putquote();
777 printf("%s", file_encap_string);
778 putquote();
779 }
780
781 if (cap_file_more_info) {
782 putsep();
783 putquote();
784 printf("%s", wtap_tsprec_string(cf_info->file_tsprec));
785 putquote();
786 }
787
788 if (cap_snaplen) {
789 putsep();
790 putquote();
791 if (cf_info->snap_set)
792 printf("%u", cf_info->snaplen);
793 else
794 printf("(not set)");
795 putquote();
796 if (cf_info->snaplen_max_inferred > 0) {
797 putsep();
798 putquote();
799 printf("%u", cf_info->snaplen_min_inferred);
800 putquote();
801 putsep();
802 putquote();
803 printf("%u", cf_info->snaplen_max_inferred);
804 putquote();
805 }
806 else {
807 putsep();
808 putquote();
809 printf("n/a");
810 putquote();
811 putsep();
812 putquote();
813 printf("n/a");
814 putquote();
815 }
816 }
817
818 if (cap_packet_count) {
819 putsep();
820 putquote();
821 printf("%u", cf_info->packet_count);
822 putquote();
823 }
824
825 if (cap_file_size) {
826 putsep();
827 putquote();
828 printf("%" PRId64"l" "d", cf_info->filesize);
829 putquote();
830 }
831
832 if (cap_data_size) {
833 putsep();
834 putquote();
835 printf("%" PRIu64"l" "u", cf_info->packet_bytes);
836 putquote();
837 }
838
839 if (cap_duration) {
840 putsep();
841 putquote();
842 printf("%s", relative_time_string(&cf_info->duration, cf_info->duration_tsprec, cf_info, false0));
843 putquote();
844 }
845
846 if (cap_earliest_packet_time) {
847 putsep();
848 putquote();
849 printf("%s", absolute_time_string(&cf_info->earliest_packet_time, cf_info->earliest_packet_time_tsprec, cf_info));
850 putquote();
851 }
852
853 if (cap_latest_packet_time) {
854 putsep();
855 putquote();
856 printf("%s", absolute_time_string(&cf_info->latest_packet_time, cf_info->latest_packet_time_tsprec, cf_info));
857 putquote();
858 }
859
860 if (cap_data_rate_byte) {
861 putsep();
862 putquote();
863 if (cf_info->times_known)
864 printf("%.2f", cf_info->data_rate);
865 else
866 printf("n/a");
867 putquote();
868 }
869
870 if (cap_data_rate_bit) {
871 putsep();
872 putquote();
873 if (cf_info->times_known)
874 printf("%.2f", cf_info->data_rate*8);
875 else
876 printf("n/a");
877 putquote();
878 }
879
880 if (cap_packet_size) {
881 putsep();
882 putquote();
883 printf("%.2f", cf_info->packet_size);
884 putquote();
885 }
886
887 if (cap_packet_rate) {
888 putsep();
889 putquote();
890 if (cf_info->times_known)
891 printf("%.2f", cf_info->packet_rate);
892 else
893 printf("n/a");
894 putquote();
895 }
896
897 if (cap_file_hashes) {
898 putsep();
899 putquote();
900 printf("%s", file_sha256);
901 putquote();
902
903 putsep();
904 putquote();
905 printf("%s", file_sha1);
906 putquote();
907 }
908
909 if (cap_order) {
910 putsep();
911 putquote();
912 printf("%s", order_string(cf_info->order));
913 putquote();
914 }
915
916 for (unsigned section_number = 0;
917 section_number < wtap_file_get_num_shbs(cf_info->wth);
918 section_number++) {
919 wtap_block_t shb;
920
921 shb = wtap_file_get_shb(cf_info->wth, section_number);
922 if (cap_file_more_info) {
923 char *str;
924
925 putsep();
926 putquote();
927 if (wtap_block_get_string_option_value(shb, OPT_SHB_HARDWARE2, &str) == WTAP_OPTTYPE_SUCCESS) {
928 printf("%s", str);
929 }
930 putquote();
931
932 putsep();
933 putquote();
934 if (wtap_block_get_string_option_value(shb, OPT_SHB_OS3, &str) == WTAP_OPTTYPE_SUCCESS) {
935 printf("%s", str);
936 }
937 putquote();
938
939 putsep();
940 putquote();
941 if (wtap_block_get_string_option_value(shb, OPT_SHB_USERAPPL4, &str) == WTAP_OPTTYPE_SUCCESS) {
942 printf("%s", str);
943 }
944 putquote();
945 }
946
947 /*
948 * One might argue that the following is silly to put into a table format,
949 * but oh well note that there may be *more than one* of each of these types
950 * of options. To mitigate some of the potential silliness the if(cap_comment)
951 * block is moved AFTER the if(cap_file_more_info) block. This will make any
952 * comments the last item(s) in each row. We now have a new -K option to
953 * disable cap_comment to more easily manage the potential silliness.
954 * Potential silliness includes multiple comments (therefore resulting in
955 * more than one additional column and/or comments with embedded newlines
956 * and/or possible delimiters).
957 *
958 * To mitigate embedded newlines and other special characters, use -M
959 */
960 if (cap_comment) {
961 unsigned int i;
962 char *opt_comment;
963 bool_Bool have_cap = false0;
964
965 for (i = 0; wtap_block_get_nth_string_option_value(shb, OPT_COMMENT1, i, &opt_comment) == WTAP_OPTTYPE_SUCCESS; i++) {
966 have_cap = true1;
967 putsep();
968 putquote();
969 if (machine_readable){
970 printf("%s", g_strescape(opt_comment, NULL((void*)0)));
971 } else {
972 printf("%s", opt_comment);
973 }
974 putquote();
975 }
976 if(!have_cap) {
977 /* Maintain column alignment when we have no OPT_COMMENT */
978 putsep();
979 putquote();
980 putquote();
981 }
982 }
983
984 }
985
986 if (pkt_comments && cf_info->pkt_cmts != NULL((void*)0)) {
987 for(p = cf_info->pkt_cmts; p != NULL((void*)0); prev = p, p = p->next, g_free(prev)) {
988 putsep();
989 putquote();
990 if (machine_readable) {
991 printf("%s", g_strescape(p->cmt, NULL((void*)0)));
992 } else {
993 printf("%s", p->cmt);
994 }
995 g_free(p->cmt);
996 putquote();
997 }
998 }
999
1000 printf("\n");
1001}
1002
1003static void
1004cleanup_capture_info(capture_info *cf_info)
1005{
1006 unsigned int i;
1007 ws_assert(cf_info != NULL)do { if ((1) && !(cf_info != ((void*)0))) ws_log_fatal_full
("Main", LOG_LEVEL_ERROR, "capinfos.c", 1007, __func__, "assertion failed: %s"
, "cf_info != ((void*)0)"); } while (0);
1008
1009 g_free(cf_info->encap_counts);
1010 cf_info->encap_counts = NULL((void*)0);
1011
1012 g_array_free(cf_info->interface_packet_counts, true1);
1013 cf_info->interface_packet_counts = NULL((void*)0);
1014
1015 if (cf_info->idb_info_strings) {
1016 for (i = 0; i < cf_info->idb_info_strings->len; i++) {
1017 char *s = g_array_index(cf_info->idb_info_strings, char*, i)(((char**) (void *) (cf_info->idb_info_strings)->data) [
(i)]);
1018 g_free(s);
1019 }
1020 g_array_free(cf_info->idb_info_strings, true1);
1021 }
1022 cf_info->idb_info_strings = NULL((void*)0);
1023}
1024
1025static void
1026count_ipv4_address(const unsigned int addr _U___attribute__((unused)), const char *name _U___attribute__((unused)), const bool_Bool static_entry _U___attribute__((unused)))
1027{
1028 num_ipv4_addresses++;
1029}
1030
1031static void
1032count_ipv6_address(const void *addrp _U___attribute__((unused)), const char *name _U___attribute__((unused)), const bool_Bool static_entry _U___attribute__((unused)))
1033{
1034 num_ipv6_addresses++;
1035}
1036
1037static void
1038count_decryption_secret(uint32_t secrets_type _U___attribute__((unused)), const void *secrets _U___attribute__((unused)), unsigned int size _U___attribute__((unused)))
1039{
1040 /* XXX - count them based on the secrets type (which is an opaque code,
1041 not a small integer)? */
1042 num_decryption_secrets++;
1043}
1044
1045static void
1046hash_to_str(const unsigned char *hash, size_t length, char *str)
1047{
1048 int i;
1049
1050 for (i = 0; i < (int) length; i++) {
1051 snprintf(str+(i*2), 3, "%02x", hash[i]);
1052 }
1053}
1054
1055static void
1056calculate_hashes(const char *filename)
1057{
1058 FILE *fh;
1059 size_t hash_bytes;
1060
1061 (void) g_strlcpy(file_sha256, "<unknown>", HASH_STR_SIZE(65));
1062 (void) g_strlcpy(file_sha1, "<unknown>", HASH_STR_SIZE(65));
1063
1064 if (cap_file_hashes) {
1065 fh = ws_fopenfopen(filename, "rb");
1066 if (fh && hd) {
1067 while((hash_bytes = fread(hash_buf, 1, HASH_BUF_SIZE(1024 * 1024), fh)) > 0) {
1068 gcry_md_write(hd, hash_buf, hash_bytes);
1069 }
1070 gcry_md_final(hd)gcry_md_ctl ((hd), GCRYCTL_FINALIZE, ((void*)0), 0);
1071 hash_to_str(gcry_md_read(hd, GCRY_MD_SHA256), HASH_SIZE_SHA25632, file_sha256);
1072 hash_to_str(gcry_md_read(hd, GCRY_MD_SHA1), HASH_SIZE_SHA120, file_sha1);
1073 }
1074 if (fh) fclose(fh);
1075 if (hd) gcry_md_reset(hd);
1076 }
1077}
1078
1079static int
1080process_cap_file(const char *filename, bool_Bool need_separator)
1081{
1082 int status = 0;
1083 int err;
1084 char *err_info;
1085 int64_t size;
1086 int64_t data_offset;
1087
1088 uint32_t packet = 0;
1089 int64_t bytes = 0;
1090 uint32_t snaplen_min_inferred = 0xffffffff;
1091 uint32_t snaplen_max_inferred = 0;
1092 wtap_rec rec;
1093 Buffer buf;
1094 capture_info cf_info;
1095 bool_Bool have_times = true1;
1096 nstime_t earliest_packet_time;
1097 int earliest_packet_time_tsprec;
1098 nstime_t latest_packet_time;
1099 int latest_packet_time_tsprec;
1100 nstime_t cur_time;
1101 nstime_t prev_time;
1102 bool_Bool know_order = false0;
1103 order_t order = IN_ORDER;
1104 unsigned int i;
1105 wtapng_iface_descriptions_t *idb_info;
1106
1107 pkt_cmt *pc = NULL((void*)0), *prev = NULL((void*)0);
1108
1109 cf_info.wth = wtap_open_offline(filename, WTAP_TYPE_AUTO0, &err, &err_info, false0);
1110 if (!cf_info.wth) {
15
←
Assuming field 'wth' is non-null
→
16
←
Taking false branch
→
1111 cfile_open_failure_message(filename, err, err_info);
1112 return 2;
1113 }
1114
1115 /*
1116 * Calculate the checksums. Do this after wtap_open_offline, so we don't
1117 * bother calculating them for files that are not known capture types
1118 * where we wouldn't print them anyway.
1119 */
1120 calculate_hashes(filename);
1121
1122 if (need_separator
16.1
'need_separator' is false
 && long_report) {
1123 printf("\n");
1124 }
1125
1126 nstime_set_zero(&earliest_packet_time);
1127 earliest_packet_time_tsprec = WTAP_TSPREC_UNKNOWN-2;
1128 nstime_set_zero(&latest_packet_time);
1129 latest_packet_time_tsprec = WTAP_TSPREC_UNKNOWN-2;
1130 nstime_set_zero(&cur_time);
1131 nstime_set_zero(&prev_time);
1132
1133 cf_info.encap_counts = g_new0(int,WTAP_NUM_ENCAP_TYPES)((int *) g_malloc0_n ((wtap_get_num_encap_types()), sizeof (int
)));
1134
1135 idb_info = wtap_file_get_idb_info(cf_info.wth);
1136
1137 ws_assert(idb_info->interface_data != NULL)do { if ((1) && !(idb_info->interface_data != ((void
*)0))) ws_log_fatal_full("Main", LOG_LEVEL_ERROR, "capinfos.c"
, 1137, __func__, "assertion failed: %s", "idb_info->interface_data != ((void*)0)"
); } while (0);
17
←
Assuming field 'interface_data' is not equal to null
→
18
←
Taking false branch
→
19
←
Loop condition is false. Exiting loop
→
1138
1139 cf_info.pkt_cmts = NULL((void*)0);
1140 cf_info.num_interfaces = idb_info->interface_data->len;
1141 cf_info.interface_packet_counts = g_array_sized_new(false0, true1, sizeof(uint32_t), cf_info.num_interfaces);
1142 g_array_set_size(cf_info.interface_packet_counts, cf_info.num_interfaces);
1143 cf_info.pkt_interface_id_unknown = 0;
1144
1145 g_free(idb_info);
1146 idb_info = NULL((void*)0);
1147
1148 /* Zero out the counters for the callbacks. */
1149 num_ipv4_addresses = 0;
1150 num_ipv6_addresses = 0;
1151 num_decryption_secrets = 0;
1152
1153 /* Register callbacks for new name<->address maps from the file and
1154 decryption secrets from the file. */
1155 wtap_set_cb_new_ipv4(cf_info.wth, count_ipv4_address);
1156 wtap_set_cb_new_ipv6(cf_info.wth, count_ipv6_address);
1157 wtap_set_cb_new_secrets(cf_info.wth, count_decryption_secret);
1158
1159 /* Tally up data that we need to parse through the file to find */
1160 wtap_rec_init(&rec);
1161 ws_buffer_init(&buf, 1514);
1162 while (wtap_read(cf_info.wth, &rec, &buf, &err, &err_info, &data_offset)) {
20
←
Loop condition is false. Execution continues on line 1270
→
1163 if (rec.presence_flags & WTAP_HAS_TS0x00000001) {
1164 prev_time = cur_time;
1165 cur_time = rec.ts;
1166 if (packet == 0) {
1167 earliest_packet_time = rec.ts;
1168 earliest_packet_time_tsprec = rec.tsprec;
1169 latest_packet_time = rec.ts;
1170 latest_packet_time_tsprec = rec.tsprec;
1171 prev_time = rec.ts;
1172 }
1173 if (nstime_cmp(&cur_time, &prev_time) < 0) {
1174 order = NOT_IN_ORDER;
1175 }
1176 if (nstime_cmp(&cur_time, &earliest_packet_time) < 0) {
1177 earliest_packet_time = cur_time;
1178 earliest_packet_time_tsprec = rec.tsprec;
1179 }
1180 if (nstime_cmp(&cur_time, &latest_packet_time) > 0) {
1181 latest_packet_time = cur_time;
1182 latest_packet_time_tsprec = rec.tsprec;
1183 }
1184 } else {
1185 have_times = false0; /* at least one packet has no time stamp */
1186 if (order != NOT_IN_ORDER)
1187 order = ORDER_UNKNOWN;
1188 }
1189
1190 if (rec.rec_type == REC_TYPE_PACKET0) {
1191 bytes += rec.rec_header.packet_header.len;
1192 packet++;
1193 /* packet comments */
1194 if (pkt_comments && wtap_block_count_option(rec.block, OPT_COMMENT1) > 0) {
1195 char *cmt_buff;
1196 for (i = 0; wtap_block_get_nth_string_option_value(rec.block, OPT_COMMENT1, i, &cmt_buff) == WTAP_OPTTYPE_SUCCESS; i++) {
1197 pc = g_new0(pkt_cmt, 1)((pkt_cmt *) g_malloc0_n ((1), sizeof (pkt_cmt)));
1198
1199 pc->recno = packet;
1200 pc->cmt = g_strdup(cmt_buff)g_strdup_inline (cmt_buff);
1201 pc->next = NULL((void*)0);
1202
1203 if (prev == NULL((void*)0))
1204 cf_info.pkt_cmts = pc;
1205 else
1206 prev->next = pc;
1207
1208 prev = pc;
1209 }
1210 }
1211
1212 /* If caplen < len for a rcd, then presumably */
1213 /* 'Limit packet capture length' was done for this rcd. */
1214 /* Keep track as to the min/max actual snapshot lengths */
1215 /* seen for this file. */
1216 if (rec.rec_header.packet_header.caplen < rec.rec_header.packet_header.len) {
1217 if (rec.rec_header.packet_header.caplen < snaplen_min_inferred)
1218 snaplen_min_inferred = rec.rec_header.packet_header.caplen;
1219 if (rec.rec_header.packet_header.caplen > snaplen_max_inferred)
1220 snaplen_max_inferred = rec.rec_header.packet_header.caplen;
1221 }
1222
1223 if ((rec.rec_header.packet_header.pkt_encap > 0) &&
1224 (rec.rec_header.packet_header.pkt_encap < WTAP_NUM_ENCAP_TYPESwtap_get_num_encap_types())) {
1225 cf_info.encap_counts[rec.rec_header.packet_header.pkt_encap] += 1;
1226 } else {
1227 fprintf(stderrstderr, "capinfos: Unknown packet encapsulation %d in frame %u of file \"%s\"\n",
1228 rec.rec_header.packet_header.pkt_encap, packet, filename);
1229 }
1230
1231 /* Packet interface_id info */
1232 if (rec.presence_flags & WTAP_HAS_INTERFACE_ID0x00000004) {
1233 /* cf_info.num_interfaces is size, not index, so it's one more than max index */
1234 if (rec.rec_header.packet_header.interface_id >= cf_info.num_interfaces) {
1235 /*
1236 * OK, re-fetch the number of interfaces, as there might have
1237 * been an interface that was in the middle of packets, and
1238 * grow the array to be big enough for the new number of
1239 * interfaces.
1240 */
1241 idb_info = wtap_file_get_idb_info(cf_info.wth);
1242
1243 cf_info.num_interfaces = idb_info->interface_data->len;
1244 g_array_set_size(cf_info.interface_packet_counts, cf_info.num_interfaces);
1245
1246 g_free(idb_info);
1247 idb_info = NULL((void*)0);
1248 }
1249 if (rec.rec_header.packet_header.interface_id < cf_info.num_interfaces) {
1250 g_array_index(cf_info.interface_packet_counts, uint32_t,(((uint32_t*) (void *) (cf_info.interface_packet_counts)->
data) [(rec.rec_header.packet_header.interface_id)])
1251 rec.rec_header.packet_header.interface_id)(((uint32_t*) (void *) (cf_info.interface_packet_counts)->
data) [(rec.rec_header.packet_header.interface_id)]) += 1;
1252 }
1253 else {
1254 cf_info.pkt_interface_id_unknown += 1;
1255 }
1256 }
1257 else {
1258 /* it's for interface_id 0 */
1259 if (cf_info.num_interfaces != 0) {
1260 g_array_index(cf_info.interface_packet_counts, uint32_t, 0)(((uint32_t*) (void *) (cf_info.interface_packet_counts)->
data) [(0)]) += 1;
1261 }
1262 else {
1263 cf_info.pkt_interface_id_unknown += 1;
1264 }
1265 }
1266 }
1267
1268 wtap_rec_reset(&rec);
1269 } /* while */
1270 wtap_rec_cleanup(&rec);
1271 ws_buffer_free(&buf);
1272
1273 /*
1274 * Get IDB info strings.
1275 * We do this at the end, so we can get information for all IDBs in
1276 * the file, even those that come after packet records, and so that
1277 * we get, for example, a count of the number of statistics entries
1278 * for each interface as of the *end* of the file.
1279 */
1280 idb_info = wtap_file_get_idb_info(cf_info.wth);
1281
1282 cf_info.idb_info_strings = g_array_sized_new(false0, false0, sizeof(char*), cf_info.num_interfaces);
1283 cf_info.num_interfaces = idb_info->interface_data->len;
1284 for (i = 0; i < cf_info.num_interfaces; i++) {
21
←
Assuming 'i' is >= field 'num_interfaces'
→
22
←
Loop condition is false. Execution continues on line 1290
→
1285 const wtap_block_t if_descr = g_array_index(idb_info->interface_data, wtap_block_t, i)(((wtap_block_t*) (void *) (idb_info->interface_data)->
data) [(i)]);
1286 char *s = wtap_get_debug_if_descr(if_descr, 21, "\n");
1287 g_array_append_val(cf_info.idb_info_strings, s)g_array_append_vals (cf_info.idb_info_strings, &(s), 1);
1288 }
1289
1290 g_free(idb_info);
1291 idb_info = NULL((void*)0);
1292
1293 if (err != 0) {
23
←
Assuming 'err' is equal to 0
→
24
←
Taking false branch
→
1294 fprintf(stderrstderr,
1295 "capinfos: An error occurred after reading %u packets from \"%s\".\n",
1296 packet, filename);
1297 cfile_read_failure_message(filename, err, err_info);
1298 if (err == WTAP_ERR_SHORT_READ-12) {
1299 /* Don't give up completely with this one. */
1300 status = 1;
1301 fprintf(stderrstderr,
1302 " (will continue anyway, checksums might be incorrect)\n");
1303 } else {
1304 cleanup_capture_info(&cf_info);
1305 wtap_close(cf_info.wth);
1306 return 2;
1307 }
1308 }
1309
1310 /* File size */
1311 size = wtap_file_size(cf_info.wth, &err);
1312 if (size == -1) {
25
←
Assuming the condition is false
→
26
←
Taking false branch
→
1313 fprintf(stderrstderr,
1314 "capinfos: Can't get size of \"%s\": %s.\n",
1315 filename, g_strerror(err));
1316 cleanup_capture_info(&cf_info);
1317 wtap_close(cf_info.wth);
1318 return 2;
1319 }
1320
1321 cf_info.filesize = size;
1322
1323 /* File Type */
1324 cf_info.file_type = wtap_file_type_subtype(cf_info.wth);
1325 cf_info.compression_type = wtap_get_compression_type(cf_info.wth);
1326
1327 /* File Encapsulation */
1328 cf_info.file_encap = wtap_file_encap(cf_info.wth);
1329
1330 cf_info.file_tsprec = wtap_file_tsprec(cf_info.wth);
1331
1332 /* Packet size limit (snaplen) */
1333 cf_info.snaplen = wtap_snapshot_length(cf_info.wth);
1334 if (cf_info.snaplen > 0)
27
←
Assuming field 'snaplen' is <= 0
→
28
←
Taking false branch
→
1335 cf_info.snap_set = true1;
1336 else
1337 cf_info.snap_set = false0;
1338
1339 cf_info.snaplen_min_inferred = snaplen_min_inferred;
1340 cf_info.snaplen_max_inferred = snaplen_max_inferred;
1341
1342 /* # of packets */
1343 cf_info.packet_count = packet;
1344
1345 /* File Times */
1346 cf_info.times_known = have_times;
1347 cf_info.earliest_packet_time = earliest_packet_time;
1348 cf_info.earliest_packet_time_tsprec = earliest_packet_time_tsprec;
1349 cf_info.latest_packet_time = latest_packet_time;
1350 cf_info.latest_packet_time_tsprec = latest_packet_time_tsprec;
1351 nstime_delta(&cf_info.duration, &latest_packet_time, &earliest_packet_time);
1352 /* Duration precision is the higher of the earliest and latest packet timestamp precisions. */
1353 if (cf_info.latest_packet_time_tsprec > cf_info.earliest_packet_time_tsprec)
29
←
Assuming field 'latest_packet_time_tsprec' is <= field 'earliest_packet_time_tsprec'
→
30
←
Taking false branch
→
1354 cf_info.duration_tsprec = cf_info.latest_packet_time_tsprec;
1355 else
1356 cf_info.duration_tsprec = cf_info.earliest_packet_time_tsprec;
1357 cf_info.know_order = know_order;
1358 cf_info.order = order;
1359
1360 /* Number of packet bytes */
1361 cf_info.packet_bytes = bytes;
1362
1363 cf_info.data_rate = 0.0;
1364 cf_info.packet_rate = 0.0;
1365 cf_info.packet_size = 0.0;
1366
1367 if (packet
30.1
'packet' is <= 0
 > 0) {
1368 double delta_time = nstime_to_sec(&latest_packet_time) - nstime_to_sec(&earliest_packet_time);
1369 if (delta_time > 0.0) {
1370 cf_info.data_rate = (double)bytes / delta_time; /* Data rate per second */
1371 cf_info.packet_rate = (double)packet / delta_time; /* packet rate per second */
1372 }
1373 cf_info.packet_size = (double)bytes / packet; /* Avg packet size */
1374 }
1375
1376 if (!long_report && table_report_header) {
31
←
Assuming 'long_report' is false
→
32
←
Assuming 'table_report_header' is true
→
33
←
Taking true branch
→
1377 print_stats_table_header(&cf_info);
34
←
Calling 'print_stats_table_header'
→
1378 }
1379
1380 if (long_report) {
1381 print_stats(filename, &cf_info);
1382 } else {
1383 print_stats_table(filename, &cf_info);
1384 }
1385
1386 cleanup_capture_info(&cf_info);
1387 wtap_close(cf_info.wth);
1388
1389 return status;
1390}
1391
1392static void
1393print_usage(FILE *output)
1394{
1395 fprintf(output, "\n");
1396 fprintf(output, "Usage: capinfos [options] <infile> ...\n");
1397 fprintf(output, "\n");
1398 fprintf(output, "General infos:\n");
1399 fprintf(output, " -t display the capture file type\n");
1400 fprintf(output, " -E display the capture file encapsulation\n");
1401 fprintf(output, " -I display the capture file interface information\n");
1402 fprintf(output, " -F display additional capture file information\n");
1403 fprintf(output, " -H display the SHA256 and SHA1 hashes of the file\n");
1404 fprintf(output, " -k display the capture comment\n");
1405 fprintf(output, " -p display individual packet comments\n");
1406 fprintf(output, "\n");
1407 fprintf(output, "Size infos:\n");
1408 fprintf(output, " -c display the number of packets\n");
1409 fprintf(output, " -s display the size of the file (in bytes)\n");
1410 fprintf(output, " -d display the total length of all packets (in bytes)\n");
1411 fprintf(output, " -l display the packet size limit (snapshot length)\n");
1412 fprintf(output, "\n");
1413 fprintf(output, "Time infos:\n");
1414 fprintf(output, " -u display the capture duration (in seconds)\n");
1415 fprintf(output, " -a display the timestamp of the earliest packet\n");
1416 fprintf(output, " -e display the timestamp of the latest packet\n");
1417 fprintf(output, " -o display the capture file chronological status (True/False)\n");
1418 fprintf(output, " -S display earliest and latest packet timestamps as seconds\n");
1419 fprintf(output, "\n");
1420 fprintf(output, "Statistic infos:\n");
1421 fprintf(output, " -y display average data rate (in bytes/sec)\n");
1422 fprintf(output, " -i display average data rate (in bits/sec)\n");
1423 fprintf(output, " -z display average packet size (in bytes)\n");
1424 fprintf(output, " -x display average packet rate (in packets/sec)\n");
1425 fprintf(output, "\n");
1426 fprintf(output, "Metadata infos:\n");
1427 fprintf(output, " -n display number of resolved IPv4 and IPv6 addresses\n");
1428 fprintf(output, " -D display number of decryption secrets\n");
1429 fprintf(output, "\n");
1430 fprintf(output, "Output format:\n");
1431 fprintf(output, " -L generate long report (default)\n");
1432 fprintf(output, " -T generate table report\n");
1433 fprintf(output, " -M display machine-readable values in long reports\n");
1434 fprintf(output, "\n");
1435 fprintf(output, "Table report options:\n");
1436 fprintf(output, " -R generate header record (default)\n");
1437 fprintf(output, " -r do not generate header record\n");
1438 fprintf(output, "\n");
1439 fprintf(output, " -B separate infos with TAB character (default)\n");
1440 fprintf(output, " -m separate infos with comma (,) character\n");
1441 fprintf(output, " -b separate infos with SPACE character\n");
1442 fprintf(output, "\n");
1443 fprintf(output, " -N do not quote infos (default)\n");
1444 fprintf(output, " -q quote infos with single quotes (')\n");
1445 fprintf(output, " -Q quote infos with double quotes (\")\n");
1446 fprintf(output, "\n");
1447 fprintf(output, "Miscellaneous:\n");
1448 fprintf(output, " -h, --help display this help and exit\n");
1449 fprintf(output, " -v, --version display version info and exit\n");
1450 fprintf(output, " -C cancel processing if file open fails (default is to continue)\n");
1451 fprintf(output, " -A generate all infos (default)\n");
1452 fprintf(output, " -K disable displaying the capture comment\n");
1453 fprintf(output, " -P disable displaying individual packet comments\n");
1454 fprintf(output, "\n");
1455 fprintf(output, "Options are processed from left to right order with later options superseding\n");
1456 fprintf(output, "or adding to earlier options.\n");
1457 fprintf(output, "\n");
1458 fprintf(output, "If no options are given the default is to display all infos in long report\n");
1459 fprintf(output, "output format.\n");
1460}
1461
1462/*
1463 * Report an error in command-line arguments.
1464 */
1465static void
1466capinfos_cmdarg_err(const char *msg_format, va_list ap)
1467{
1468 fprintf(stderrstderr, "capinfos: ");
1469 vfprintf(stderrstderr, msg_format, ap);
1470 fprintf(stderrstderr, "\n");
1471}
1472
1473/*
1474 * Report additional information for an error in command-line arguments.
1475 */
1476static void
1477capinfos_cmdarg_err_cont(const char *msg_format, va_list ap)
1478{
1479 vfprintf(stderrstderr, msg_format, ap);
1480 fprintf(stderrstderr, "\n");
1481}
1482
1483int
1484main(int argc, char *argv[])
1485{
1486 char *configuration_init_error;
1487 bool_Bool need_separator = false0;
1488 int opt;
1489 int overall_error_status = EXIT_SUCCESS0;
1490 static const struct ws_option long_options[] = {
1491 {"help", ws_no_argument0, NULL((void*)0), 'h'},
1492 {"version", ws_no_argument0, NULL((void*)0), 'v'},
1493 {0, 0, 0, 0 }
1494 };
1495
1496 int status = 0;
1497
1498 /*
1499 * Set the C-language locale to the native environment and set the
1500 * code page to UTF-8 on Windows.
1501 */
1502#ifdef _WIN32
1503 setlocale(LC_ALL6, ".UTF-8");
1504#else
1505 setlocale(LC_ALL6, "");
1506#endif
1507
1508 cmdarg_err_init(capinfos_cmdarg_err, capinfos_cmdarg_err_cont);
1509
1510 /* Initialize log handler early so we can have proper logging during startup. */
1511 ws_log_init("capinfos", vcmdarg_err);
1512
1513 /* Early logging command-line initialization. */
1514 ws_log_parse_args(&argc, argv, vcmdarg_err, WS_EXIT_INVALID_OPTION1);
1515
1516 ws_noisy("Finished log init and parsing command line log arguments")do { if (1) { ws_log_full("Main", LOG_LEVEL_NOISY, "capinfos.c"
, 1516, __func__, "Finished log init and parsing command line log arguments"
); } } while (0);
1
Taking true branch
→
2
←
Loop condition is false. Exiting loop
→
1517
1518 /* Get the decimal point. */
1519 decimal_point = g_strdup(localeconv()->decimal_point)g_strdup_inline (localeconv()->decimal_point);
1520
1521 /* Initialize the version information. */
1522 ws_init_version_info("Capinfos", NULL((void*)0), NULL((void*)0));
1523
1524#ifdef _WIN32
1525 create_app_running_mutex();
1526#endif /* _WIN32 */
1527
1528 /*
1529 * Get credential information for later use.
1530 */
1531 init_process_policies();
1532
1533 /*
1534 * Attempt to get the pathname of the directory containing the
1535 * executable file.
1536 */
1537 configuration_init_error = configuration_init(argv[0], NULL((void*)0));
1538 if (configuration_init_error != NULL((void*)0)) {
3
←
Assuming 'configuration_init_error' is equal to NULL
→
4
←
Taking false branch
→
1539 fprintf(stderrstderr,
1540 "capinfos: Can't get pathname of directory containing the capinfos program: %s.\n",
1541 configuration_init_error);
1542 g_free(configuration_init_error);
1543 }
1544
1545 init_report_failure_message("capinfos");
1546
1547 wtap_init(true1);
1548
1549 /* Process the options */
1550 while ((opt = ws_getopt_long(argc, argv, "abcdehiklmnopqrstuvxyzABCDEFHIKLMNPQRST", long_options, NULL((void*)0))) !=-1) {
5
←
Assuming the condition is false
→
6
←
Loop condition is false. Execution continues on line 1742
→
1551
1552 switch (opt) {
1553
1554 case 't':
1555 if (report_all_infos) disable_all_infos();
1556 cap_file_type = true1;
1557 break;
1558
1559 case 'E':
1560 if (report_all_infos) disable_all_infos();
1561 cap_file_encap = true1;
1562 break;
1563
1564 case 'l':
1565 if (report_all_infos) disable_all_infos();
1566 cap_snaplen = true1;
1567 break;
1568
1569 case 'c':
1570 if (report_all_infos) disable_all_infos();
1571 cap_packet_count = true1;
1572 break;
1573
1574 case 's':
1575 if (report_all_infos) disable_all_infos();
1576 cap_file_size = true1;
1577 break;
1578
1579 case 'd':
1580 if (report_all_infos) disable_all_infos();
1581 cap_data_size = true1;
1582 break;
1583
1584 case 'u':
1585 if (report_all_infos) disable_all_infos();
1586 cap_duration = true1;
1587 break;
1588
1589 case 'a':
1590 if (report_all_infos) disable_all_infos();
1591 cap_earliest_packet_time = true1;
1592 break;
1593
1594 case 'e':
1595 if (report_all_infos) disable_all_infos();
1596 cap_latest_packet_time = true1;
1597 break;
1598
1599 case 'S':
1600 time_as_secs = true1;
1601 break;
1602
1603 case 'y':
1604 if (report_all_infos) disable_all_infos();
1605 cap_data_rate_byte = true1;
1606 break;
1607
1608 case 'i':
1609 if (report_all_infos) disable_all_infos();
1610 cap_data_rate_bit = true1;
1611 break;
1612
1613 case 'z':
1614 if (report_all_infos) disable_all_infos();
1615 cap_packet_size = true1;
1616 break;
1617
1618 case 'x':
1619 if (report_all_infos) disable_all_infos();
1620 cap_packet_rate = true1;
1621 break;
1622
1623 case 'H':
1624 if (report_all_infos) disable_all_infos();
1625 cap_file_hashes = true1;
1626 break;
1627
1628 case 'o':
1629 if (report_all_infos) disable_all_infos();
1630 cap_order = true1;
1631 break;
1632
1633 case 'k':
1634 if (report_all_infos) disable_all_infos();
1635 cap_comment = true1;
1636 break;
1637
1638 case 'p':
1639 if (report_all_infos) disable_all_infos();
1640 pkt_comments = true1;
1641 break;
1642
1643 case 'K':
1644 cap_comment = false0;
1645 break;
1646
1647 case 'P':
1648 pkt_comments = false0;
1649 break;
1650
1651 case 'F':
1652 if (report_all_infos) disable_all_infos();
1653 cap_file_more_info = true1;
1654 break;
1655
1656 case 'I':
1657 if (report_all_infos) disable_all_infos();
1658 cap_file_idb = true1;
1659 break;
1660
1661 case 'n':
1662 if (report_all_infos) disable_all_infos();
1663 cap_file_nrb = true1;
1664 break;
1665
1666 case 'D':
1667 if (report_all_infos) disable_all_infos();
1668 cap_file_dsb = true1;
1669 break;
1670
1671 case 'C':
1672 stop_after_failure = true1;
1673 break;
1674
1675 case 'A':
1676 enable_all_infos();
1677 break;
1678
1679 case 'L':
1680 long_report = true1;
1681 break;
1682
1683 case 'T':
1684 long_report = false0;
1685 break;
1686
1687 case 'M':
1688 machine_readable = true1;
1689 break;
1690
1691 case 'R':
1692 table_report_header = true1;
1693 break;
1694
1695 case 'r':
1696 table_report_header = false0;
1697 break;
1698
1699 case 'N':
1700 quote_char = '\0';
1701 break;
1702
1703 case 'q':
1704 quote_char = '\'';
1705 break;
1706
1707 case 'Q':
1708 quote_char = '"';
1709 break;
1710
1711 case 'B':
1712 field_separator = '\t';
1713 break;
1714
1715 case 'm':
1716 field_separator = ',';
1717 break;
1718
1719 case 'b':
1720 field_separator = ' ';
1721 break;
1722
1723 case 'h':
1724 show_help_header("Print various information (infos) about capture files.");
1725 print_usage(stdoutstdout);
1726 goto exit;
1727 break;
1728
1729 case 'v':
1730 show_version();
1731 goto exit;
1732 break;
1733
1734 case '?': /* Bad flag - print usage message */
1735 print_usage(stderrstderr);
1736 overall_error_status = WS_EXIT_INVALID_OPTION1;
1737 goto exit;
1738 break;
1739 }
1740 }
1741
1742 if ((argc - ws_optind) < 1) {
7
←
Assuming the condition is false
→
8
←
Taking false branch
→
1743 print_usage(stderrstderr);
1744 overall_error_status = WS_EXIT_INVALID_OPTION1;
1745 goto exit;
1746 }
1747
1748 if (cap_file_hashes
8.1
'cap_file_hashes' is true
) {
9
←
Taking true branch
→
1749 gcry_check_version(NULL((void*)0));
1750 gcry_md_open(&hd, GCRY_MD_SHA256, 0);
1751 if (hd)
10
←
Assuming 'hd' is null
→
11
←
Taking false branch
→
1752 gcry_md_enable(hd, GCRY_MD_SHA1);
1753
1754 hash_buf = (char *)g_malloc(HASH_BUF_SIZE(1024 * 1024));
1755 }
1756
1757 overall_error_status = 0;
1758
1759 for (opt = ws_optind; opt < argc; opt++) {
12
←
Assuming 'opt' is < 'argc'
→
13
←
Loop condition is true. Entering loop body
→
1760
1761 status = process_cap_file(argv[opt], need_separator);
14
←
Calling 'process_cap_file'
→
1762 if (status) {
1763 /* Something failed. It's been reported; remember that processing
1764 one file failed and, if -C was specified, stop. */
1765 overall_error_status = status;
1766 if (stop_after_failure)
1767 goto exit;
1768 }
1769 if (status != 2) {
1770 /* Either it succeeded or it got a "short read" but printed
1771 information anyway. Note that we need a blank line before
1772 the next file's information, to separate it from the
1773 previous file. */
1774 need_separator = true1;
1775 }
1776 }
1777
1778exit:
1779 g_free(hash_buf);
1780 gcry_md_close(hd);
1781 wtap_cleanup();
1782 free_progdirs();
1783 return overall_error_status;
1784}