(greater): Added const qualifier.

(find_previous_text_no): Fixed the returned error status.

src/server/text.c

 /*
- * $Id: text.c,v 0.55 1998/08/09 19:06:50 ceder Exp $
+ * $Id: text.c,v 0.56 1998/10/22 22:08:47 ceder Exp $
  * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996  Lysator Academic Computer Association.
  *
  * This file is part of the LysKOM server.
@@ -29,7 +29,7 @@
  */
 
 static const char *
-rcsid = "$Id: text.c,v 0.55 1998/08/09 19:06:50 ceder Exp $";
+rcsid = "$Id: text.c,v 0.56 1998/10/22 22:08:47 ceder Exp $";
 #include "rcs.h"
 USE(rcsid);
 
@@ -2439,8 +2439,8 @@ delete_text( Text_no text_no )
 
 /* Return TRUE if ``a'' is greater than ``b'. */
 static Bool
-greater(struct tm *a,
-	struct tm *b)
+greater(const struct tm *a,
+	const struct tm *b)
 {
     if (a->tm_year < b->tm_year)
 	return FALSE;
@@ -2485,7 +2485,6 @@ extern Success
 get_last_text(struct tm *wanted_time,
 	      Text_no *result)
 {
-    /* FIXME: this looks bogus */
     struct tm *texttime;
     Text_no lower  = 0;
     Text_no higher = query_next_text_num() - 1;
@@ -2506,6 +2505,9 @@ get_last_text(struct tm *wanted_time,
 	try = middle;
 	text_stat = NULL;
 
+	/* FIXME: Once there is a more efficient structure that maps
+	   Text_nos to the internal cache_node this loop could
+	   probably be rewritten in a more efficient way.  */
         while (text_stat == NULL && try <= higher)
 	    text_stat = cached_get_text_stat (try++);
 
@@ -2516,7 +2518,7 @@ get_last_text(struct tm *wanted_time,
 	    texttime = localtime(&text_stat->creation_time);
 	    if (greater(wanted_time, texttime))
 		lower = try - 1;
-	    else		/* The intervall is "halved" */
+	    else
 		higher = middle - 1;
 	}
     }
@@ -2564,8 +2566,8 @@ find_previous_text_no (Text_no start,
 {
     Text_stat *text_s;
     Text_no next_tno;
+    const Text_no saved_start = start;
     
-    err_stat = start;
     if (start > (next_tno = query_next_text_num()))
 	start = next_tno;
 
@@ -2580,6 +2582,7 @@ find_previous_text_no (Text_no start,
     }
 
     kom_errno = KOM_NO_SUCH_TEXT;
+    err_stat = saved_start;
     return FAILURE;
 }