diff options
Diffstat (limited to 'capinfo.c')
| -rwxr-xr-x | capinfo.c | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/capinfo.c b/capinfo.c new file mode 100755 index 0000000000..6c368c8522 --- /dev/null +++ b/capinfo.c @@ -0,0 +1,341 @@ +/* capinfo.c
+ * Reports capture file information including # of packets, duration, others
+ *
+ * Copyright 2004 Ian Schorr
+ *
+ * $Id: $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <glib.h>
+#include <string.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+#include <string.h>
+#include <epan/packet.h>
+#include "wtap.h"
+
+#ifdef NEED_GETOPT_H
+#include "getopt.h"
+#endif
+
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+
+static gboolean cap_file_type = FALSE; /* Do not report capture type */
+static gboolean cap_packet_count = FALSE; /* Do not produce packet count */
+static gboolean cap_file_size = FALSE; /* Do not report file size */
+static gboolean cap_data_size = FALSE; /* Do not report packet byte size */
+static gboolean cap_duration = FALSE; /* Do not report capture duration */
+static gboolean cap_start_time = FALSE;
+static gboolean cap_end_time = FALSE;
+
+static gboolean cap_data_rate_byte = FALSE;
+static gboolean cap_data_rate_bit = FALSE;
+static gboolean cap_packet_size = FALSE;
+
+
+typedef struct _capture_info {
+ const char *filename;
+ guint16 file_type;
+ guint64 filesize;
+ guint64 packet_bytes;
+ double start_time;
+ double stop_time;
+ guint32 packet_count;
+ gboolean snap_set;
+ guint32 snaplen;
+ gboolean drops_known;
+ guint32 drop_count;
+
+ double duration;
+ double packet_rate;
+ double packet_size;
+ double data_rate; /* in bytes */
+} capture_info;
+
+static double
+secs_usecs(guint32 s, guint32 us)
+{
+ return (us / 1000000.0) + (double)s;
+}
+
+static void
+print_stats(capture_info *cf_info)
+{
+ gchar *file_type_string;
+ time_t start_time_t;
+ struct tm *start_time_tm;
+ time_t stop_time_t;
+ struct tm *stop_time_tm;
+
+ /* Build printable strings for various stats */
+ file_type_string = wtap_file_type_string(cf_info->file_type);
+ start_time_t = (long)cf_info->start_time;
+ stop_time_t = (long)cf_info->stop_time;
+ start_time_tm = localtime (&start_time_t);
+ stop_time_tm = localtime (&stop_time_t);
+
+ if (cap_file_type) printf("File Type: %s\n", file_type_string);
+ if (cap_packet_count) printf("Number of packets: %u \n", cf_info->packet_count);
+ if (cap_file_size) printf("File Size: %" PRIu64 " bytes\n", cf_info->filesize);
+ if (cap_data_size) printf("Data Size: %" PRIu64 " bytes\n", cf_info->packet_bytes);
+ if (cap_duration) printf("Capture duration: %f seconds\n", cf_info->duration);
+ if (cap_start_time) printf("Start time: %s", asctime (start_time_tm));
+ if (cap_end_time) printf("End time: %s", asctime (stop_time_tm));
+ if (cap_data_rate_byte) printf("Data rate: %.2f bytes/s\n", cf_info->data_rate);
+ if (cap_data_rate_bit) printf("Data rate: %.2f bits/s\n", cf_info->data_rate*8);
+ if (cap_packet_size) printf("Average packet size: %.2f bytes\n", cf_info->packet_size);
+
+}
+
+static int
+process_cap_file(wtap *wth)
+{
+ int err;
+ gchar *err_info;
+ struct stat cf_stat;
+ long data_offset;
+
+ guint32 packet = 0;
+ gint64 bytes = 0;
+ const struct wtap_pkthdr *phdr;
+ capture_info cf_info;
+ double start_time = 0;
+ double stop_time = 0;
+ double cur_time = 0;
+
+ /* Tally up data that we need to parse through the file to find */
+ while (wtap_read(wth, &err, &err_info, &data_offset)) {
+ phdr = wtap_phdr(wth);
+ cur_time = secs_usecs(phdr->ts.tv_sec, phdr->ts.tv_usec);
+ if(packet==0) {
+ start_time = cur_time;
+ stop_time = cur_time;
+ }
+ if (cur_time < start_time) {
+ start_time = cur_time;
+ }
+ if (cur_time > stop_time) {
+ stop_time = cur_time;
+ }
+ bytes+=phdr->len;
+ packet++;
+ }
+
+ if (err != 0) {
+ fprintf(stderr, "Error after reading %i packets\n", packet);
+ exit(1);
+ }
+
+ /* File size */
+ if (fstat(wtap_fd(wth), &cf_stat) < 0) {
+ wtap_close(wth);
+ return 1;
+ }
+
+ cf_info.filesize = cf_stat.st_size;
+
+ /* File Type */
+ cf_info.file_type = wtap_file_type(wth);
+
+ /* # of packets */
+ cf_info.packet_count = packet;
+
+ /* File Times */
+ cf_info.start_time = start_time;
+ cf_info.stop_time = stop_time;
+ cf_info.duration = stop_time-start_time;
+
+ /* Number of packet bytes */
+ cf_info.packet_bytes = bytes;
+
+ /* Data rate per second */
+ cf_info.data_rate = (double)bytes / (stop_time-start_time);
+
+ /* Avg packet size */
+ cf_info.packet_size = (double)bytes/packet;
+
+ print_stats(&cf_info);
+
+return 0;
+}
+
+static void usage(gboolean is_error)
+{
+ FILE *output;
+
+ if (!is_error) {
+ output = stdout;
+ /* XXX - add capinfo header info here */
+ }
+ else {
+ output = stderr;
+ }
+
+
+ fprintf(output, "Usage: capinfo [-t] [-c] [-s] [-d] [-u] [-a] [-e] [-y]\n");
+ fprintf(output, " [-i] [-z] [-h] <capfile>\n");
+ fprintf(output, " where\t-t display the capture type of <capfile>\n");
+ fprintf(output, " \t-c count the number of packets\n");
+ fprintf(output, " \t-s display the size of the file \n");
+ fprintf(output, " \t-d display the total length of all packets in the file\n");
+ fprintf(output, " \t (in bytes)\n");
+ fprintf(output, " \t-u display the capture duration (in seconds) \n");
+ fprintf(output, " \t-a display the capture start time\n");
+ fprintf(output, " \t-e display the capture end time\n");
+ fprintf(output, " \t-y display average data rate (in bytes)\n");
+ fprintf(output, " \t-i display average data rate (in bits)\n");
+ fprintf(output, " \t-z display average packet size (in bytes)\n");
+ fprintf(output, " \t-h produces this help listing.\n");
+ fprintf(output, "\n \t If no data flags are given, default is to display all statistics\n");
+}
+
+int main(int argc, char *argv[])
+{
+ wtap *wth;
+ int err;
+ gchar *err_info;
+ extern char *optarg;
+ extern int optind;
+ int opt;
+ int status = 0;
+
+ /* Process the options first */
+
+ while ((opt = getopt(argc, argv, "tcsduaeyizvh")) !=-1) {
+
+ switch (opt) {
+
+ case 't':
+ cap_file_type = TRUE;
+ break;
+
+ case 'c':
+ cap_packet_count = TRUE;
+ break;
+
+ case 's':
+ cap_file_size = TRUE;
+ break;
+
+ case 'd':
+ cap_data_size = TRUE;
+ break;
+
+ case 'u':
+ cap_duration = TRUE;
+ break;
+
+ case 'a':
+ cap_start_time = TRUE;
+ break;
+
+ case 'e':
+ cap_end_time = TRUE;
+ break;
+
+ case 'y':
+ cap_data_rate_byte = TRUE;
+ break;
+
+ case 'i':
+ cap_data_rate_bit = TRUE;
+ break;
+
+ case 'z':
+ cap_packet_size = TRUE;
+ break;
+
+ case 'h':
+ usage(FALSE);
+ exit(1);
+ break;
+
+ case '?': /* Bad flag - print usage message */
+ usage(TRUE);
+ exit(1);
+ break;
+
+ }
+
+ }
+
+ if (optind < 2) {
+
+ /* If no arguments were given, by default display all statistics */
+ cap_file_type = TRUE;
+ cap_packet_count = TRUE;
+ cap_file_size = TRUE;
+ cap_data_size = TRUE;
+ cap_duration = TRUE;
+ cap_start_time = TRUE;
+ cap_end_time = TRUE;
+
+ cap_data_rate_byte = TRUE;
+ cap_data_rate_bit = TRUE;
+ cap_packet_size = TRUE;
+
+ }
+
+ if ((argc - optind) < 1) {
+ usage(TRUE);
+ exit(1);
+ }
+
+ wth = wtap_open_offline(argv[optind], &err, &err_info, FALSE);
+
+ if (!wth) {
+ fprintf(stderr, "editcap: Can't open %s: %s\n", argv[optind],
+ wtap_strerror(err));
+ switch (err) {
+
+ case WTAP_ERR_UNSUPPORTED:
+ case WTAP_ERR_UNSUPPORTED_ENCAP:
+ case WTAP_ERR_BAD_RECORD:
+ fprintf(stderr, "(%s)\n", err_info);
+ g_free(err_info);
+ break;
+ }
+ exit(1);
+
+ }
+
+ status = process_cap_file(wth);
+
+ wtap_close(wth);
+ return status;
+}
+
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