added the --save-packet argument so that SPA packet data can be saved to the local filesystem by the fwknop-c client

git-svn-id: file:///home/mbr/svn/fwknop/trunk@78 510a4753-2344-4c79-9c09-4d669213fbeb

src/config_init.c

@@ -221,6 +221,9 @@ config_init(fko_cli_options_t *options, int argc, char **argv)
             case 'G':
                 strlcpy(options->get_key_file, optarg, MAX_PATH_LEN);
                 break;
+            case 'B':
+                strlcpy(options->save_packet_file, optarg, MAX_PATH_LEN);
+                break;
             case 'Q':
                 strlcpy(options->spoof_ip_src_str, optarg, MAX_IP_STR_LEN);
                 break;

src/config_init.h

@@ -54,6 +54,7 @@ static struct option cmd_opts[] =
     {"source-port",         1, NULL, 'S'},
     {"spoof-src",           1, NULL, 'Q'},
     {"spoof-user",          1, NULL, 'U'},
+    {"save-packet",         1, NULL, 'B'},
     {"get-key",             1, NULL, 'G'},
     {"quiet",               0, NULL, 'q'},
     {"debug",               0, NULL, 'd'},

src/fwknop.c

@@ -197,6 +197,9 @@ main(int argc, char **argv)
     if (! options.quiet)
         display_ctx(ctx);
 
+    if (options.save_packet_file[0] != 0x0)
+        write_spa_packet_data(ctx, options.save_packet_file);
+
     /* If not in test mode, send the SPA data across the wire with a
      * protocol/port specified on the command line (default is UDP/62201).
      * Otherwise, run through a decode cycle (--DSS XXX: This test/decode

src/fwknop_common.h

@@ -86,6 +86,7 @@ typedef struct fko_cli_options
     char config_file[MAX_PATH_LEN];
     char access_str[MAX_PATH_LEN];
     char get_key_file[MAX_LINE_LEN];
+    char save_packet_file[MAX_LINE_LEN];
     char spa_server_ip_str[MAX_IP_STR_LEN];
     char allow_ip_str[MAX_IP_STR_LEN];
     char spoof_ip_src_str[MAX_IP_STR_LEN];

src/spa_comm.c

@@ -114,5 +114,22 @@ send_spa_packet(fko_ctx_t ctx, fko_cli_options_t *options)
     return rv;
 }
 
+/* Function to write SPA packet data to the filesystem
+*/
+int write_spa_packet_data(fko_ctx_t ctx, const char *save_packet_file)
+{
+    FILE   *fp;
+
+
+    if((fp = fopen(save_packet_file, "w")) == NULL)
+        return 0;
+
+    fprintf(fp, "%s\n",
+        (fko_get_spa_data(ctx) == NULL) ? "<NULL>" : fko_get_spa_data(ctx));
+
+    fclose(fp);
+
+    return 1;
+}
 
 /***EOF***/

src/spa_comm.h

@@ -31,5 +31,6 @@
 /* Prototypes
 */
 int send_spa_packet(fko_ctx_t ctx, fko_cli_options_t *options);
+int write_spa_packet_data(fko_ctx_t ctx, const char *save_packet_file);
 
 #endif  /* SPA_COMM_H */