From e8f5dac7d455f1b64bb287630bbd532b550da691 Mon Sep 17 00:00:00 2001
From: Guy Harris <guy@alum.mit.edu>
Date: Sun, 5 Dec 1999 01:27:14 +0000
Subject: Use the new routines in Wiretap to make the argument to "-T" be a
 symbolic name, and to list the encapsulation types in the usage message.

Note in the usage message that the default output encapsulation type is
"same as the input file" and that the default output file type is
"libpcap".

svn path=/trunk/; revision=1213
---
 editcap.c | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

(limited to 'editcap.c')

diff --git a/editcap.c b/editcap.c
index f5b997683d..0e306f021e 100644
--- a/editcap.c
+++ b/editcap.c
@@ -1,7 +1,7 @@
 /* Edit capture files.  We can delete records, or simply convert from one 
  * format to another format.
  *
- * $Id: editcap.c,v 1.2 1999/12/04 21:42:56 guy Exp $
+ * $Id: editcap.c,v 1.3 1999/12/05 01:27:14 guy Exp $
  *
  * Originally written by Richard Sharpe.
  * Improved by Guy Harris.
@@ -81,18 +81,27 @@ edit_callback(u_char *user, const struct wtap_pkthdr *phdr, int offset,
 void usage()
 {
   int i;
+  char *string;
 
-  fprintf(stderr, "Usage: editcap [-r] [-T <encap type>] [-F <capture type>]  <infile> <outfile>\\\n");
+  fprintf(stderr, "Usage: editcap [-r] [-T <encap type>] [-F <capture type>] <infile> <outfile>\\\n");
   fprintf(stderr, "                [ <record#> ... ]\n");
   fprintf(stderr, "  where\t-r specifies that the records specified should be kept, not deleted, \n");
   fprintf(stderr, "                           default is to delete\n");
-  fprintf(stderr, "       \t-T <encap type> specified the encapsulation type\n");
-  fprintf(stderr, "       \t-F <capture type> specifies the capture file type:\n");
+  fprintf(stderr, "       \t-T <encap type> specifies the encapsulation type to use:\n");
+  for (i = 0; i < WTAP_NUM_ENCAP_TYPES; i++) {
+      string = wtap_encap_short_string(i);
+      if (string != NULL)
+        fprintf(stderr, "       \t    %s - %s\n",
+          string, wtap_encap_string(i));
+  }
+  fprintf(stderr, "       \t   default is the same as the input file\n");
+  fprintf(stderr, "       \t-F <capture type> specifies the capture file type to write:\n");
   for (i = 0; i < WTAP_NUM_FILE_TYPES; i++) {
     if (wtap_dump_can_open(i))
       fprintf(stderr, "       \t    %s - %s\n",
         wtap_file_type_short_string(i), wtap_file_type_string(i));
   }
+  fprintf(stderr, "       \t   default is libpcap\n");
 }
 
 int main(int argc, char *argv[])
@@ -112,7 +121,12 @@ int main(int argc, char *argv[])
     switch (opt) {
 
     case 'T':
-      out_frame_type = atoi(optarg);
+      out_frame_type = wtap_short_string_to_encap(optarg);
+      if (out_frame_type < 0) {
+      	fprintf(stderr, "editcap: \"%s\" is not a valid encapsulation type\n",
+      	    optarg);
+      	exit(1);
+      }
       break;
       
     case 'F':
-- 
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