X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/780f86b43c33d3f0fd0c067e2c1847e2a6360dae..2a5873120688f77c2a544b45b6c340324283d46b:/tcpdump.c

diff --git a/tcpdump.c b/tcpdump.c
index bac890f0..e028d2e7 100644
--- a/tcpdump.c
+++ b/tcpdump.c
@@ -691,6 +691,7 @@ show_remote_devices_and_exit(void)
 #define OPTION_TSTAMP_NANO		134
 #define OPTION_FP_TYPE			135
 #define OPTION_COUNT			136
+#define OPTION_PRINT_SAMPLING		137
 
 static const struct option longopts[] = {
 #if defined(HAVE_PCAP_CREATE) || defined(_WIN32)
@@ -738,6 +739,7 @@ static const struct option longopts[] = {
 	{ "fp-type", no_argument, NULL, OPTION_FP_TYPE },
 	{ "number", no_argument, NULL, '#' },
 	{ "print", no_argument, NULL, OPTION_PRINT },
+	{ "print-sampling", required_argument, NULL, OPTION_PRINT_SAMPLING },
 	{ "version", no_argument, NULL, OPTION_VERSION },
 	{ NULL, 0, NULL, 0 }
 };
@@ -1864,6 +1866,8 @@ main(int argc, char **argv)
 				ndo->ndo_packettype = PT_SOMEIP;
 			else if (ascii_strcasecmp(optarg, "domain") == 0)
 				ndo->ndo_packettype = PT_DOMAIN;
+			else if (ascii_strcasecmp(optarg, "quic") == 0)
+				ndo->ndo_packettype = PT_QUIC;
 			else
 				error("unknown packet type `%s'", optarg);
 			break;
@@ -1958,6 +1962,14 @@ main(int argc, char **argv)
 			print = 1;
 			break;
 
+		case OPTION_PRINT_SAMPLING:
+			print = 1;
+			++ndo->ndo_Sflag;
+			ndo->ndo_print_sampling = atoi(optarg);
+			if (ndo->ndo_print_sampling <= 0)
+				error("invalid print sampling %s", optarg);
+			break;
+
 #ifdef HAVE_PCAP_SET_TSTAMP_PRECISION
 		case OPTION_TSTAMP_MICRO:
 			ndo->ndo_tstamp_precision = PCAP_TSTAMP_PRECISION_MICRO;
@@ -2715,7 +2727,7 @@ DIAG_ON_ASSIGN_ENUM
 
 	free(cmdbuf);
 	pcap_freecode(&fcode);
-	exit_tcpdump(status == -1 ? 1 : 0);
+	exit_tcpdump(status == -1 ? S_ERR_HOST_PROGRAM : S_SUCCESS);
 }
 
 /*
@@ -3260,9 +3272,11 @@ print_usage(FILE *f)
 "\t\t" m_FLAG_USAGE "\n");
 #endif
 	(void)fprintf(f,
-"\t\t[ -M secret ] [ --number ] [ --print ]" Q_FLAG_USAGE "\n");
+"\t\t[ -M secret ] [ --number ] [ --print ]\n");
+	(void)fprintf(f,
+"\t\t[ --print-sampling nth ]" Q_FLAG_USAGE " [ -r file ]\n");
 	(void)fprintf(f,
-"\t\t[ -r file ] [ -s snaplen ] [ -T type ] [ --version ]\n");
+"\t\t[ -s snaplen ] [ -T type ] [ --version ]\n");
 	(void)fprintf(f,
 "\t\t[ -V file ] [ -w file ] [ -W filecount ] [ -y datalinktype ]\n");
 #ifdef HAVE_PCAP_SET_TSTAMP_PRECISION