706c8c2b49fcbd941c9da43c1b8a950c0c33f5ba
galt
  Mon Feb 10 23:54:13 2014 -0800
now converting hgsid and hguid to strings. when the hgsid cart var or hguid cookie is not found it returns NULL instead of 0.
diff --git src/hg/hgTables/great.c src/hg/hgTables/great.c
index 274005e..4092964 100644
--- src/hg/hgTables/great.c
+++ src/hg/hgTables/great.c
@@ -168,37 +168,35 @@
 struct dyString *greatRequest;
 
 greatRequest = dyStringCreate(
     "<meta http-equiv='refresh' content='0;url=http://great.stanford.edu/public/cgi-bin/greatStart.php?requestURL=%s&requestSpecies=%s&requestName=%s&requestSender=UCSC%20Table%20Browser'>",
     dyStringContents(requestURL), database, dyStringContents(requestName));
 
 hPrintf("<b>GREAT</b> is processing BED data from \"%s\"...please wait.\n", dyStringContents(requestName));
 hWrites(dyStringContents(greatRequest));
 freeDyString(&greatRequest);
 freeDyString(&requestName);
 freeDyString(&requestURL);
 }
 
 void doGetGreatOutput(void (*dispatch)())
 {
-char hgsid[64];
 struct tempName tn;
 int saveStdout;
 FILE *f;
 
-safef(hgsid, sizeof(hgsid), "%u", cartSessionId(cart));
-trashDirFile(&tn, "great", hgsid, ".bed");
+trashDirFile(&tn, "great", cartSessionId(cart), ".bed");
 f = fopen(tn.forCgi, "w");
 
 /* We want to capture hgTables stdout output to a trash file
  * which will later be fetched by Great via URL. */
 /* Workaround because stdout stream is not assignable on some operating systems */
 fflush(stdout);
 saveStdout = dup(STDOUT_FILENO);
 dup2(fileno(f),STDOUT_FILENO);   /* closes STDOUT before setting it again */
 fclose(f);
 
 dispatch();  /* this writes to stdout */
 
 /* restore stdout */
 fflush(stdout);
 dup2(saveStdout ,STDOUT_FILENO);  /* closes STDOUT before setting it back to saved descriptor */