trackrdrd: use unsigned indexes in data init (large tables were overflowing)

src/child.c

@@ -609,7 +609,7 @@ static inline dataentry
     de->tid	= fd;
     de->hasdata	= false;
 
-    sprintf(de->data, "XID=%d", xid);
+    sprintf(de->data, "XID=%u", xid);
     de->end = strlen(de->data);
     if (de->end > dtbl.w_stats.data_hi)
         dtbl.w_stats.data_hi = de->end;

src/data.c

@@ -53,13 +53,13 @@ DATA_Init(void)
     dataentry *entryptr;
     char *bufptr;
     
-    int bufsize = config.maxdata;
+    unsigned bufsize = config.maxdata;
     
     /*
      * we want enough space to accomodate all open and done records
      *
      */
-    int entries = (1 << config.maxopen_scale) + config.maxdone;
+    unsigned entries = (1 << config.maxopen_scale) + config.maxdone;
 
     entryptr = (dataentry *) calloc(entries, sizeof(dataentry));
     if (entryptr == NULL)
@@ -82,7 +82,7 @@ DATA_Init(void)
     dtbl.buf	= bufptr;
     dtbl.nfree  = 0;
 
-    for (int i = 0; i < entries; i++) {
+    for (unsigned i = 0; i < entries; i++) {
         dtbl.entry[i].magic = DATA_MAGIC;
         dtbl.entry[i].state = DATA_EMPTY;
         dtbl.entry[i].hasdata = false;