static void stop_capture_signal_handler(int signo);
-void
-capture_opts_init(capture_options *capture_opts, void *cfile)
-{
- capture_opts->cf = cfile;
- capture_opts->cfilter = g_strdup("");
- capture_opts->iface = NULL;
-#ifdef _WIN32
- capture_opts->buffer_size = 1; /* 1 MB */
-#endif
- capture_opts->has_snaplen = FALSE;
- capture_opts->snaplen = MIN_PACKET_SIZE;
- capture_opts->promisc_mode = TRUE;
- capture_opts->linktype = -1; /* the default linktype */
- capture_opts->capture_child = FALSE;
- capture_opts->save_file = NULL;
- capture_opts->save_file_fd = -1;
- capture_opts->sync_mode = TRUE;
- capture_opts->show_info = TRUE;
- capture_opts->quit_after_cap = FALSE;
-
- capture_opts->multi_files_on = FALSE;
- capture_opts->has_file_duration = FALSE;
- capture_opts->file_duration = 60; /* 1 min */
- capture_opts->has_ring_num_files = TRUE;
- capture_opts->ring_num_files = 2;
-
- capture_opts->has_autostop_files = FALSE;
- capture_opts->autostop_files = 1;
- capture_opts->has_autostop_packets = FALSE;
- capture_opts->autostop_packets = 1;
- capture_opts->has_autostop_filesize = FALSE;
- capture_opts->autostop_filesize = 1024 * 1024; /* 1 MB */
- capture_opts->has_autostop_duration = FALSE;
- capture_opts->autostop_duration = 60; /* 1 min */
-
-}
-
-static int
-get_natural_int(const char *string, const char *name)
-{
- long number;
- char *p;
-
- number = strtol(string, &p, 10);
- if (p == string || *p != '\0') {
- fprintf(stderr, "ethereal: The specified %s \"%s\" isn't a decimal number\n",
- name, string);
- exit(1);
- }
- if (number < 0) {
- fprintf(stderr, "ethereal: The specified %s \"%s\" is a negative number\n",
- name, string);
- exit(1);
- }
- if (number > INT_MAX) {
- fprintf(stderr, "ethereal: The specified %s \"%s\" is too large (greater than %d)\n",
- name, string, INT_MAX);
- exit(1);
- }
- return number;
-}
-
-
-static int
-get_positive_int(const char *string, const char *name)
-{
- long number;
-
- number = get_natural_int(string, name);
-
- if (number == 0) {
- fprintf(stderr, "ethereal: The specified %s is zero\n",
- name);
- exit(1);
- }
-
- return number;
-}
-
-
-/*
- * Given a string of the form "<autostop criterion>:<value>", as might appear
- * as an argument to a "-a" option, parse it and set the criterion in
- * question. Return an indication of whether it succeeded or failed
- * in some fashion.
- */
-static gboolean
-set_autostop_criterion(capture_options *capture_opts, const char *autostoparg)
-{
- gchar *p, *colonp;
-
- colonp = strchr(autostoparg, ':');
- if (colonp == NULL)
- return FALSE;
-
- p = colonp;
- *p++ = '\0';
-
- /*
- * Skip over any white space (there probably won't be any, but
- * as we allow it in the preferences file, we might as well
- * allow it here).
- */
- while (isspace((guchar)*p))
- p++;
- if (*p == '\0') {
- /*
- * Put the colon back, so if our caller uses, in an
- * error message, the string they passed us, the message
- * looks correct.
- */
- *colonp = ':';
- return FALSE;
- }
- if (strcmp(autostoparg,"duration") == 0) {
- capture_opts->has_autostop_duration = TRUE;
- capture_opts->autostop_duration = get_positive_int(p,"autostop duration");
- } else if (strcmp(autostoparg,"filesize") == 0) {
- capture_opts->has_autostop_filesize = TRUE;
- capture_opts->autostop_filesize = get_positive_int(p,"autostop filesize");
- } else if (strcmp(autostoparg,"files") == 0) {
- capture_opts->multi_files_on = TRUE;
- capture_opts->has_autostop_files = TRUE;
- capture_opts->autostop_files = get_positive_int(p,"autostop files");
- } else {
- return FALSE;
- }
- *colonp = ':'; /* put the colon back */
- return TRUE;
-}
-
-/*
- * Given a string of the form "<ring buffer file>:<duration>", as might appear
- * as an argument to a "-b" option, parse it and set the arguments in
- * question. Return an indication of whether it succeeded or failed
- * in some fashion.
- */
-static gboolean
-get_ring_arguments(capture_options *capture_opts, const char *arg)
-{
- gchar *p = NULL, *colonp;
-
- colonp = strchr(arg, ':');
-
- if (colonp != NULL) {
- p = colonp;
- *p++ = '\0';
- }
-
- capture_opts->ring_num_files =
- get_natural_int(arg, "number of ring buffer files");
-
- if (colonp == NULL)
- return TRUE;
-
- /*
- * Skip over any white space (there probably won't be any, but
- * as we allow it in the preferences file, we might as well
- * allow it here).
- */
- while (isspace((guchar)*p))
- p++;
- if (*p == '\0') {
- /*
- * Put the colon back, so if our caller uses, in an
- * error message, the string they passed us, the message
- * looks correct.
- */
- *colonp = ':';
- return FALSE;
- }
-
- capture_opts->has_file_duration = TRUE;
- capture_opts->file_duration = get_positive_int(p,
- "ring buffer duration");
-
- *colonp = ':'; /* put the colon back */
- return TRUE;
-}
-
-
-void
-capture_opt_add(capture_options *capture_opts, int opt, const char *optarg, gboolean *start_capture)
-{
-#ifdef _WIN32
- int i;
-#endif
-
- switch(opt) {
- case 'a': /* autostop criteria */
- if (set_autostop_criterion(capture_opts, optarg) == FALSE) {
- fprintf(stderr, "ethereal: Invalid or unknown -a flag \"%s\"\n", optarg);
- exit(1);
- }
- break;
- case 'b': /* Ringbuffer option */
- capture_opts->multi_files_on = TRUE;
- capture_opts->has_ring_num_files = TRUE;
- if (get_ring_arguments(capture_opts, optarg) == FALSE) {
- fprintf(stderr, "ethereal: Invalid or unknown -b arg \"%s\"\n", optarg);
- exit(1);
- }
- break;
- case 'c': /* Capture xxx packets */
- capture_opts->has_autostop_packets = TRUE;
- capture_opts->autostop_packets = get_positive_int(optarg, "packet count");
- break;
- case 'f': /* capture filter */
- if (capture_opts->cfilter)
- g_free(capture_opts->cfilter);
- capture_opts->cfilter = g_strdup(optarg);
- break;
- case 'H': /* Hide capture info dialog box */
- capture_opts->show_info = FALSE;
- break;
- case 'i': /* Use interface xxx */
- capture_opts->iface = g_strdup(optarg);
- break;
- case 'k': /* Start capture immediately */
- *start_capture = TRUE;
- break;
- /*case 'l':*/ /* Automatic scrolling in live capture mode */
- case 'p': /* Don't capture in promiscuous mode */
- capture_opts->promisc_mode = FALSE;
- break;
- case 'Q': /* Quit after capture (just capture to file) */
- capture_opts->quit_after_cap = TRUE;
- *start_capture = TRUE; /*** -Q implies -k !! ***/
- break;
- case 's': /* Set the snapshot (capture) length */
- capture_opts->has_snaplen = TRUE;
- capture_opts->snaplen = get_positive_int(optarg, "snapshot length");
- break;
- case 'S': /* "Sync" mode: used for following file ala tail -f */
- capture_opts->sync_mode = TRUE;
- break;
- case 'w': /* Write to capture file xxx */
- capture_opts->save_file = g_strdup(optarg);
- break;
- case 'W': /* Write to capture file FD xxx */
- capture_opts->save_file_fd = atoi(optarg);
- break;
- case 'y': /* Set the pcap data link type */
-#ifdef HAVE_PCAP_DATALINK_NAME_TO_VAL
- capture_opts->linktype = pcap_datalink_name_to_val(optarg);
- if (capture_opts->linktype == -1) {
- fprintf(stderr, "ethereal: The specified data link type \"%s\" isn't valid\n",
- optarg);
- exit(1);
- }
-#else /* HAVE_PCAP_DATALINK_NAME_TO_VAL */
- /* XXX - just treat it as a number */
- capture_opts->linktype = get_natural_int(optarg, "data link type");
-#endif /* HAVE_PCAP_DATALINK_NAME_TO_VAL */
- break;
-#ifdef _WIN32
- /* Hidden option supporting Sync mode */
- case 'Z': /* Write to pipe FD XXX */
- /* associate stdout with pipe */
- i = atoi(optarg);
- if (dup2(i, 1) < 0) {
- fprintf(stderr, "Unable to dup pipe handle\n");
- exit(1);
- }
- break;
-#endif /* _WIN32 */
- default:
- /* the caller is responsible to send us only the right opt's */
- g_assert_not_reached();
- }
-}
-
/* open the output file (temporary/specified name/ringbuffer) and close the old one */
/* Returns TRUE if the file opened successfully, FALSE otherwise. */
static gboolean
git.samba.org / obnox / wireshark / wip.git / blobdiff