git-svn-id: http://svn.ipfire.org/svn/ipfire/IPFire/source@16 ea5c0bd1-69bd-2848...

[people/pmueller/ipfire-2.x.git] / src / patches / grub-0.90-append.patch

diff --git a/src/patches/grub-0.90-append.patch b/src/patches/grub-0.90-append.patch
new file mode 100644 (file)
index 0000000..88f79d0
--- /dev/null
+++ b/src/patches/grub-0.90-append.patch
@@ -0,0 +1,111 @@
+--- grub-0.90/stage2/stage2.c.append   Thu Dec 20 08:20:48 2001
++++ grub-0.90/stage2/stage2.c  Thu Dec 20 17:01:20 2001
+@@ -500,7 +500,8 @@
+         if (config_entries)
+           printf ("\
+       Press enter to boot the selected OS, \'e\' to edit the\n\
+-      commands before booting, or \'c\' for a command-line.");
++      commands before booting, \'a\' to modify the kernel arguments\n\
++      before booting, or \'c\' for a command-line.");
+         else
+           printf ("\
+       Press \'b\' to boot, \'e\' to edit the selected command in the\n\
+@@ -787,6 +788,98 @@
+                 enter_cmdline (heap, 0);
+                 goto restart;
+               }
++            if (config_entries && c == 'a')
++              {
++                int new_num_entries = 0, i = 0, j;
++                int needs_padding, amount;
++                char *new_heap;
++                char * entries;
++                char * entry_copy;
++                char * append_line;
++                char * start;
++
++                entry_copy = new_heap = heap;
++                cur_entry = get_entry (config_entries, first_entry + entryno,
++                                       1);
++                
++                do
++                  {
++                    while ((*(new_heap++) = cur_entry[i++]) != 0);
++                    new_num_entries++;
++                  }
++                while (config_entries && cur_entry[i]);
++
++                /* this only needs to be done if config_entries is non-NULL,
++                   but it doesn't hurt to do it always */
++                *(new_heap++) = 0;
++
++                new_heap = heap + NEW_HEAPSIZE + 1;
++
++                entries = entry_copy;
++                while (*entries) 
++                  {
++                    if ((strstr(entries, "kernel") == entries) &&
++                        isspace(entries[6])) 
++                        break;
++
++                    while (*entries) entries++;
++                    entries++;
++                  }
++
++                if (!*entries)
++                    goto restart;
++
++                start = entries + 6;
++
++                /* skip the white space */
++                while (*start && isspace(*start)) start++;
++                /* skip the kernel name */
++                while (*start && !isspace(*start)) start++;
++
++                /* skip the white space */
++                needs_padding = (!*start || !isspace(*start));
++                while (*start && isspace(*start)) start++;
++
++                append_line = new_heap;
++                grub_strcpy(append_line, start);
++
++                cls();
++                print_cmdline_message (CMDLINE_EDIT_MODE);
++
++                if (get_cmdline(PACKAGE " append> ", 
++                                  append_line, NEW_HEAPSIZE + 1, 
++                                  0, 1))
++                    goto restart;
++
++                /* have new args; append_line points to the
++                   new args and start points to the old
++                   args */
++
++                i = grub_strlen(start);
++                j = grub_strlen(append_line);
++
++                if (i > (j + needs_padding))
++                    amount = i;
++                else
++                    amount = j + needs_padding;
++
++                /* align rest of commands properly */
++                memmove (start + j + needs_padding, start + i,
++                     ((int) append_line) - ((int) start) - (amount));
++
++                if (needs_padding)
++                    *start = ' ';
++
++                /* copy command to correct area */
++                memmove (start + needs_padding, append_line, j);
++
++                /* set up this entry to boot */
++                config_entries = NULL;
++                cur_entry = entry_copy;
++                heap = new_heap;
++
++                break;
++              }
+ #ifdef GRUB_UTIL
+             if (c == 'q')
+               {