Feature #853 -w == --write, -W == --suppress-warnings

Also fix maximum snap length

docs/CHANGELOG

@@ -1,11 +1,12 @@
-06/23/2024 Version 4.5.0-beta3
+06/29/2024 Version 4.5.0-beta3
  - tcpreplay --include / --exclude to control which packets are replayed (#884)
- - add -w (--suppress-warnings) option to suppress warning messages (#878)
+ - add -W (--suppress-warnings) option to suppress warning messages (#878)
  - AF_XDP compile issue due to merge issue (#876)
  - memory leak in tcpprep when using include/exclude (#869)
  - memory leak in tcpprep when using RegEx (#867)
  - fix nanosecond timestamp regression bug (#863)
  - autotools - AC_HELP_STRING is obsolete in 2.70 (#856)
+ - add -w output.pcap command line option to direct the output to a pcap (#853)
  - configure.ac: do not run conftest in case of cross compilation (#849)
  - Haiku support (#847)
  - --fixhdrlen option added to control action on packet length changes (#846)

src/common/sendpacket.c

@@ -847,7 +847,7 @@ sendpacket_open_pcap_dump(const char *device, char *errbuf)
 
  dbg(1, "sendpacket: using Libpcap");
 
- pcap = pcap_open_dead(DLT_EN10MB, 65535);
+ pcap = pcap_open_dead(DLT_EN10MB, MAX_SNAPLEN);
  if ((dump = pcap_dump_open(pcap, device)) == NULL){
  char* err_msg = pcap_geterr(pcap);
  strlcpy(errbuf, err_msg, PCAP_ERRBUF_SIZE);

src/tcpreplay_opts.def

@@ -265,6 +265,7 @@ flag = {
  value = i;
  arg-type = string;
  max = 1;
+ equivalence = intf1;
  must-set;
  descrip = "Client to server/RX/primary traffic output interface";
  doc = <<- EOText
@@ -289,8 +290,8 @@ EOText;
 };
 
 flag = {
- name = output;
- value = o;
+ name = write;
+ value = w;
  arg-type = string;
  max = 1;
  equivalence = intf1;
@@ -667,7 +668,6 @@ EOText;
 
 flag = {
  name = pid;
- value = P;
  descrip = "Print the PID of tcpreplay at startup";
  flag-code = <<- EOPid
 
@@ -691,7 +691,7 @@ EOText;
 
 flag = {
  name = suppress-warnings;
- value = w;
+ value = W;
  immediate;
  descrip = "suppress printing warning messages";
  settable;