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Change default snaplen to 65535, add -l/--snaplen command line option.

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Addresses #447.
This commit is contained in:
Jon Siwek 2011-08-29 15:47:48 -05:00
parent 005b1505b8
commit 0ae1d8a359
2 changed files with 11 additions and 5 deletions
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12
src/main.cc
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@ -98,6 +98,7 @@ extern char version[];
char* command_line_policy = 0;
vector<string> params;
char* proc_status_file = 0;
extern int snaplen;
int FLAGS_use_binpac = false;
@ -145,7 +146,7 @@ void usage()
fprintf(stderr, " -g|--dump-config | dump current config into .state dir\n");
fprintf(stderr, " -h|--help|-? | command line help\n");
fprintf(stderr, " -i|--iface <interface> | read from given interface\n");
fprintf(stderr, " -Z|--doc-scripts | generate documentation for all loaded scripts\n");
fprintf(stderr, " -l|--snaplen <snaplen> | number of bytes per packet to capture from interfaces (default 65535)\n");
fprintf(stderr, " -p|--prefix <prefix> | add given prefix to policy file resolution\n");
fprintf(stderr, " -r|--readfile <readfile> | read from given tcpdump file\n");
fprintf(stderr, " -y|--flowfile <file>[=<ident>] | read from given flow file\n");
@ -172,6 +173,7 @@ void usage()
fprintf(stderr, " -T|--re-level <level> | set 'RE_level' for rules\n");
fprintf(stderr, " -U|--status-file <file> | Record process status in file\n");
fprintf(stderr, " -W|--watchdog | activate watchdog timer\n");
fprintf(stderr, " -Z|--doc-scripts | generate documentation for all loaded scripts\n");
#ifdef USE_PERFTOOLS
fprintf(stderr, " -m|--mem-leaks | show leaks [perftools]\n");
@ -367,7 +369,7 @@ int main(int argc, char** argv)
{"filter", required_argument, 0, 'f'},
{"help", no_argument, 0, 'h'},
{"iface", required_argument, 0, 'i'},
{"print-scripts", no_argument, 0, 'l'},
{"snaplen", required_argument, 0, 'l'},
{"doc-scripts", no_argument, 0, 'Z'},
{"prefix", required_argument, 0, 'p'},
{"readfile", required_argument, 0, 'r'},
@ -441,7 +443,7 @@ int main(int argc, char** argv)
opterr = 0;
char opts[256];
safe_strncpy(opts, "B:D:e:f:I:i:K:n:p:R:r:s:T:t:U:w:x:X:y:Y:z:CFGLOPSWbdghvZ",
safe_strncpy(opts, "B:D:e:f:I:i:K:l:n:p:R:r:s:T:t:U:w:x:X:y:Y:z:CFGLOPSWbdghvZ",
sizeof(opts));
#ifdef USE_PERFTOOLS
@ -476,6 +478,10 @@ int main(int argc, char** argv)
interfaces.append(optarg);
break;
case 'l':
snaplen = atoi(optarg);
break;
case 'p':
prefixes.append(optarg);
break;