Fixed null_at to ACTUALLY DO SOMETHING with its arg. Again, this was causing nasty errors if the call to nrealloc moved where the data was located

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@866 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -5,6 +5,9 @@ CVS code -
 	  currshortcut and currslen #ifdefs to depend on both 
 	  DISABLE_HELP and DISABLE_MOUSE being defined to not 
 	  include.  Changed all the shortcuts and lengths.
+	- Fixed null_at to ACTUALLY DO SOMETHING with its arg.  Again,
+	  this was causing nasty errors if the call to nrealloc moved
+	  where the data was located.
 - cut.c:
   do_cut_text()
 	-  Check to see whether marked text is contained within edit

cut.c

@@ -157,7 +157,7 @@ void cut_marked_segment(filestruct * top, int top_x, filestruct * bot,
  	screwed somewhere.  Not doing this causes update_line to annihilate
 	the last line copied into the cutbuffer when the mark is set ?!?!? */
     botcopy = copy_node(bot);
-    null_at(botcopy->data, bot_x);
+    null_at(&botcopy->data, bot_x);
     next = botcopy->next;
     add_to_cutbuffer(botcopy);
 
@@ -451,7 +451,7 @@ int do_uncut_text(void)
 	    tmp->data = charalloc(strlen(&current->data[current_x]) + 1);
 	    strcpy(tmp->data, &current->data[current_x]);
 	    splice_node(current, tmp, current->next);
-	    null_at(current->data, current_x);
+	    null_at(&current->data, current_x);
 	    current = current->next;
 	    current_x = 0;
 	    placewewant = 0;

files.c

@@ -495,8 +495,8 @@ int add_open_file(int update, int dup_fix)
 	open_files = open_files->next;
 
 	/* if open_files->file is NULL at the nrealloc() below, we get a
-	   segfault */
-	open_files->file = open_files;
+	   segfault
+	open_files->file = open_files; */
     }
 
     /* save current filename */
@@ -524,7 +524,7 @@ int add_open_file(int update, int dup_fix)
     open_files->lineno = current->lineno;
 
     /* save current filestruct */
-    open_files->file = nrealloc(open_files->file, sizeof(filestruct));
+    open_files->file = nmalloc(sizeof(filestruct));
     while (current->prev)
 	current = current->prev;
     open_files->file = copy_filestruct(current);
@@ -912,7 +912,7 @@ char *get_full_path(char *origpath)
 	    /* otherwise, remove all non-path elements from d_there
 	       (i. e. everything after the last slash) */
 	    last_slash_index = strlen(d_there) - strlen(last_slash);
-	    null_at(d_there, last_slash_index + 1);
+	    null_at(&d_there, last_slash_index + 1);
 
 	    /* and remove all non-file elements from d_there_file (i. e.
 	       everything before and including the last slash); if we

nano.c

@@ -393,10 +393,12 @@ void align(char **strp)
 }
 
 /* Null a string at a certain index and align it */
-void null_at(char *data, int index)
+void null_at(char **data, int index)
 {
-    data[index] = 0;
-    align(&data);
+
+    /* Ahh!  Damn dereferencing */
+    (*data)[index] = 0;
+    align(data);
 }
 
 void usage(void)
@@ -1024,7 +1026,7 @@ void do_wrap(filestruct * inptr, char input_char)
 	    down = 1;
 	}
 
-	null_at(inptr->data, current_x);
+	null_at(&inptr->data, current_x);
 
 	if (ISSET(MARK_ISSET) && (mark_beginbuf == inptr)) {
 	    mark_beginbuf = temp;
@@ -1085,7 +1087,7 @@ void do_wrap(filestruct * inptr, char input_char)
 	    i = current_word_start - 1;
 	    current_x = current_word_start;
 
-	    null_at(inptr->data, current_word_start);
+	    null_at(&inptr->data, current_word_start);
 
 	    /* Increment totsize to account for the new line that
 	       will be added below, so that it won't end up being

proto.h

@@ -165,7 +165,7 @@ void die_save_file(char *die_filename);
 void new_file(void);
 void new_magicline(void);
 void splice_node(filestruct *begin, filestruct *newnode, filestruct *end);
-void null_at(char *data, int index);
+void null_at(char **data, int index);
 void page_up(void);
 void blank_edit(void);
 void search_init_globals(void);