Patch from Robert J. Osborne <rj@resourceinternational.com> that fixes

a bug in vi where the beginning of the text space was not checked
before dot is decremented for delete and escape sequences on an empty
file.


git-svn-id: svn://busybox.net/trunk/busybox@3184 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 3 insertions, 3 deletions

diff --git a/vi.c b/vi.c
index 38aee15d7..8d7506d0f 100644
--- a/vi.c
+++ b/vi.c
@@ -19,7 +19,7 @@
  */
 
 static const char vi_Version[] =
-        "$Id: vi.c,v 1.14 2001/07/31 15:01:12 kraai Exp $";
+        "$Id: vi.c,v 1.15 2001/08/02 05:26:41 andersen Exp $";
 
 /*
  * To compile for standalone use:
@@ -2640,12 +2640,12 @@ static Byte *char_insert(Byte * p, Byte c) // insert the char c at 'p'
                 cmdcnt = 0;
                 end_cmd_q();    // stop adding to q
                 strcpy((char *) status_buffer, " ");    // clear the status buffer
-                if (p[-1] != '\n') {
+                if ((p[-1] != '\n') && (dot>text)) {
                         p--;
                 }
         } else if (c == erase_char) {   // Is this a BS
                 //     123456789
-                if (p[-1] != '\n') {
+                if ((p[-1] != '\n') && (dot>text)) {
                         p--;
                         p = text_hole_delete(p, p);     // shrink buffer 1 char
 #ifdef BB_FEATURE_VI_DOT_CMD