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lib: additional patch for 496e83a

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Fixes a couple off-by-ones introduced in previous commit.

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2017-01-18 06:09:26 +00:00
parent eb3d20d398
commit d1e4a518e6
1 changed files with 13 additions and 6 deletions
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19
lib/vty.c
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@ -515,7 +515,7 @@ vty_self_insert (struct vty *vty, char c)
int i;
int length;
if (vty->length + 1 > VTY_BUFSIZ)
if (vty->length + 1 >= VTY_BUFSIZ)
return;
length = vty->length - vty->cp;
@ -528,6 +528,8 @@ vty_self_insert (struct vty *vty, char c)
vty->cp++;
vty->length++;
vty->buf[vty->length] = '\0';
}
/* Self insert character 'c' in overwrite mode. */
@ -553,11 +555,15 @@ vty_self_insert_overwrite (struct vty *vty, char c)
static void
vty_insert_word_overwrite (struct vty *vty, char *str)
{
size_t nwrite = MIN ((int) strlen (str), VTY_BUFSIZ - vty->cp);
vty_write (vty, str, nwrite);
strncpy (&vty->buf[vty->cp], str, nwrite);
if (vty->cp == VTY_BUFSIZ)
return;
size_t nwrite = MIN ((int) strlen (str), VTY_BUFSIZ - vty->cp - 1);
memcpy (&vty->buf[vty->cp], str, nwrite);
vty->cp += nwrite;
vty->length = vty->cp;
vty->length = MAX (vty->cp, vty->length);
vty->buf[vty->length] = '\0';
vty_write (vty, str, nwrite);
}
/* Forward character. */
@ -614,6 +620,7 @@ vty_history_print (struct vty *vty)
length = strlen (vty->hist[vty->hp]);
memcpy (vty->buf, vty->hist[vty->hp], length);
vty->cp = vty->length = length;
vty->buf[vty->length] = '\0';
/* Redraw current line */
vty_redraw_line (vty);
@ -2141,7 +2148,7 @@ vtysh_read (struct thread *thread)
printf ("line: %.*s\n", nbytes, buf);
#endif /* VTYSH_DEBUG */
if (vty->length + nbytes > VTY_BUFSIZ)
if (vty->length + nbytes >= VTY_BUFSIZ)
{
/* Clear command line buffer. */
vty->cp = vty->length = 0;