forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
they have LF at the end of the line on UN*X and CR/LF on Windows; hopefully this means that if a CR/LF version is checked in on Windows, the CRs will be stripped so that they show up only when checked out on Windows, not on UN*X. svn path=/trunk/; revision=11400
226 lines
5.5 KiB
C
226 lines
5.5 KiB
C
/* Combine two dump files, either by appending or by merging by timestamp
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*
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* $Id$
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*
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* Written by Scott Renfro <scott@renfro.org> based on
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* editcap by Richard Sharpe and Guy Harris
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <glib.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#include <string.h>
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#include "wtap.h"
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#ifdef NEED_GETOPT_H
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#include "getopt.h"
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#endif
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#include "svnversion.h"
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#include "merge.h"
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#ifdef HAVE_IO_H
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# include <io.h>
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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/* Win32 needs the O_BINARY flag for open() */
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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/*
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* Show the usage
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*/
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static void
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usage(void)
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{
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int i;
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const char *string;
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printf("Usage: mergecap [-hva] [-s <snaplen>] [-T <encap type>]\n");
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printf(" [-F <capture type>] -w <outfile> <infile> [...]\n\n");
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printf(" where\t-h produces this help listing.\n");
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printf(" \t-v verbose operation, default is silent\n");
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printf(" \t-a files should be concatenated, not merged\n");
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printf(" \t Default merges based on frame timestamps\n");
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printf(" \t-s <snaplen>: truncate packets to <snaplen> bytes of data\n");
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printf(" \t-w <outfile>: sets output filename to <outfile>\n");
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printf(" \t-T <encap type> encapsulation type to use:\n");
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for (i = 0; i < WTAP_NUM_ENCAP_TYPES; i++) {
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string = wtap_encap_short_string(i);
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if (string != NULL)
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printf(" \t %s - %s\n",
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string, wtap_encap_string(i));
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}
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printf(" \t default is the same as the first input file\n");
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printf(" \t-F <capture type> capture file type to write:\n");
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for (i = 0; i < WTAP_NUM_FILE_TYPES; i++) {
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if (wtap_dump_can_open(i))
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printf(" \t %s - %s\n",
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wtap_file_type_short_string(i), wtap_file_type_string(i));
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}
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printf(" \t default is libpcap\n");
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}
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int
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main(int argc, char *argv[])
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{
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extern char *optarg;
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extern int optind;
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int opt;
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char *p;
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gboolean do_append = FALSE;
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int in_file_count = 0;
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merge_in_file_t *in_files = NULL;
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merge_out_file_t out_file;
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int err;
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char *out_filename = NULL;
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/* initialize out_file */
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out_file.fd = 0;
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out_file.pdh = NULL; /* wiretap dumpfile */
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out_file.file_type = WTAP_FILE_PCAP; /* default to "libpcap" */
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out_file.frame_type = -2; /* leave type alone */
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out_file.snaplen = 0; /* no limit */
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out_file.count = 1; /* frames output */
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merge_verbose = VERBOSE_ERRORS;
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/* Process the options first */
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while ((opt = getopt(argc, argv, "hvas:T:F:w:")) != -1) {
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switch (opt) {
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case 'w':
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out_filename = optarg;
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break;
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case 'a':
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do_append = !do_append;
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break;
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case 'T':
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out_file.frame_type = wtap_short_string_to_encap(optarg);
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if (out_file.frame_type < 0) {
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fprintf(stderr, "mergecap: \"%s\" is not a valid encapsulation type\n",
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optarg);
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exit(1);
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}
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break;
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case 'F':
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out_file.file_type = wtap_short_string_to_file_type(optarg);
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if (out_file.file_type < 0) {
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fprintf(stderr, "mergecap: \"%s\" is not a valid capture file type\n",
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optarg);
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exit(1);
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}
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break;
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case 'v':
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merge_verbose = VERBOSE_ALL;
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break;
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case 's':
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out_file.snaplen = strtol(optarg, &p, 10);
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if (p == optarg || *p != '\0') {
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fprintf(stderr, "mergecap: \"%s\" is not a valid snapshot length\n",
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optarg);
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exit(1);
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}
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break;
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case 'h':
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printf("mergecap version %s"
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#ifdef SVNVERSION
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" (" SVNVERSION ")"
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#endif
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"\n", VERSION);
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usage();
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exit(0);
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break;
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case '?': /* Bad options if GNU getopt */
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usage();
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exit(1);
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break;
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}
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}
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/* check for proper args; at a minimum, must have an output
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* filename and one input file
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*/
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in_file_count = argc - optind;
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if (!out_filename) {
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fprintf(stderr, "mergecap: an output filename must be set with -w\n");
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fprintf(stderr, " run with -h for help\n");
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exit(1);
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}
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/* open the input files */
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in_file_count = merge_open_in_files(in_file_count, &argv[optind], &in_files, &err);
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if (in_file_count < 1) {
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fprintf(stderr, "mergecap: No valid input files\n");
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exit(1);
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}
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/* set the outfile frame type */
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if (out_file.frame_type == -2)
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out_file.frame_type = merge_select_frame_type(in_file_count, in_files);
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/* open the outfile */
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if (strncmp(out_filename, "-", 2) == 0) {
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/* use stdout as the outfile */
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out_file.fd = 1 /*stdout*/;
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} else {
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/* open the outfile */
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out_file.fd = open(out_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
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}
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if (out_file.fd == -1) {
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fprintf(stderr, "mergecap: Couldn't open output file %s: %s\n",
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out_filename, strerror(errno));
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exit(1);
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}
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/* prepare the outfile */
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if (!merge_open_outfile(&out_file, merge_max_snapshot_length(in_file_count, in_files), &err)) {
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merge_close_in_files(in_file_count, in_files);
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exit(1);
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}
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/* do the merge (or append) */
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if (do_append)
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merge_append_files(in_file_count, in_files, &out_file, &err);
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else
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merge_files(in_file_count, in_files, &out_file, &err);
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merge_close_in_files(in_file_count, in_files);
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merge_close_outfile(&out_file);
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free(in_files);
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return 0;
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}
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