[B.A.T.M.A.N.] [Patch] vis: Modified format of JSON output.

[elektra]

The current vis server JSON output format is breaking the json_decode() 
function for PHP. 

This patch mainly:
- Removes all spaces
- Removes all the \t TABS
- Double quotes the string-variables

Reported-by:  "Alberto Escudero-Pascual" <a...@it46.se>
Signed-off-by: "elektra" <onelek...@gmx.net>

--- vis.c       2011-03-09 17:19:59.000000000 +0100
+++ new/vis.c   2011-03-09 17:15:26.000000000 +0100
@@ -88,19 +88,21 @@
        if ( fork() )
                exit(EXIT_SUCCESS);
 
-       chdir( "/" );
+       if (chdir( "/" )==0) {
 
-       if ( ( fd = open(_PATH_DEVNULL, O_RDWR, 0) ) != -1 ) {
+               if ( ( fd = open(_PATH_DEVNULL, O_RDWR, 0) ) != -1 ) {
 
-               dup2(fd, STDIN_FILENO);
-               dup2(fd, STDOUT_FILENO);
-               dup2(fd, STDERR_FILENO);
+                       dup2(fd, STDIN_FILENO);
+                       dup2(fd, STDOUT_FILENO);
+                       dup2(fd, STDERR_FILENO);
 
-               if ( fd > 2 )
-                       close(fd);
+                       if ( fd > 2 )
+                               close(fd);
 
+               }
+       } else {
+               exit_error( "Error - can't chdir\n");
        }
-
        return 0;
 }
 
@@ -395,7 +397,7 @@
                                                fillme->dot_buffer = (char 
*)debugRealloc( fillme->dot_buffer, strlen( tmp ) + strlen( fillme->dot_buffer 
) + 1, 408 );
                                                strncat( fillme->dot_buffer, 
tmp, strlen( tmp ) );
 
-                                               snprintf( tmp, sizeof( tmp ), 
"%s\t{ router : \"%s\", neighbour : \"%s\", label : %.2f }",
+                                               snprintf( tmp, sizeof( tmp ), 
"%s{\"router\":\"%s\",\"neighbour\":\"%s\",\"label\":%.2f}",
                                                        (first_line ? "" : 
",\n"), from_str, to_str, (float)( orig_node->tq_max / (float)neigh->tq_avg ) );
                                                first_line = 0;
                                                fillme->json_buffer = (char 
*)debugRealloc( fillme->json_buffer, strlen( tmp ) + strlen( 
fillme->json_buffer ) + 1, 408 );
@@ -416,7 +418,7 @@
                                        fillme->dot_buffer = (char 
*)debugRealloc( fillme->dot_buffer, strlen( tmp ) + strlen( fillme->dot_buffer 
) + 1, 409 );
                                        strncat( fillme->dot_buffer, tmp, 
strlen( tmp ) );
 
-                                       snprintf( tmp, sizeof( tmp ), "%s\t{ 
router : \"%s\", gateway : \"%s/%s\", label : \"HNA\" }",
+                                       snprintf( tmp, sizeof( tmp ), 
"%s{\"router\":\"%s\",\"gateway\":\"%s/%s\",\"label\":\"HNA\"}",
                                                (first_line ? "" : ",\n"), 
from_str, to_str, hna_str );
                                        first_line = 0;
                                        fillme->json_buffer = (char 
*)debugRealloc( fillme->json_buffer, strlen( tmp ) + strlen( 
fillme->json_buffer ) + 1, 409 );
@@ -432,7 +434,7 @@
                                        strncat( fillme->dot_buffer, tmp, 
strlen( tmp ) );
 
                                        snprintf( tmp, sizeof( tmp ),
-                                               "%s\t{ router : \"%s\", gateway 
: \"%s\", label : \"%s\" }",
+                                               
"%s{\"router\":\"%s\",\"gateway\":\"%s\",\"label\":\"%s\"}",
                                                (first_line ? "" : ",\n"), 
from_str, "0.0.0.0/0.0.0.0", "HNA" );
                                        first_line = 0;
                                        fillme->json_buffer = (char 
*)debugRealloc( fillme->json_buffer, strlen( tmp ) + strlen( 
fillme->json_buffer ) + 1, 410 );