diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | Src/Zle/zle_refresh.c | 11 |
2 files changed, 15 insertions, 1 deletions
@@ -1,3 +1,8 @@ +2008-01-08 Peter Stephenson <pws@csr.com> + + * 24371: Src/Zle/zle_refresh.c: potential crash when refreshing + scrolling chunk of large history entry. + 2008-01-06 Clint Adams <clint@zsh.org> * Chris Lamb: 24365: Completion/Debian/Command/.distfiles, diff --git a/Src/Zle/zle_refresh.c b/Src/Zle/zle_refresh.c index a705f67cf..cdda42287 100644 --- a/Src/Zle/zle_refresh.c +++ b/Src/Zle/zle_refresh.c @@ -797,7 +797,7 @@ zrefresh(void) (int)ZR_strlen(nbuf[0]) + rpromptw < winw - 1; } else { /* insert >.... on first line if there is more text before start of screen */ - memset(nbuf[0], ZWC(' '), lpromptw); + ZR_memset(nbuf[0], ZWC(' '), lpromptw); t0 = winw - lpromptw; t0 = t0 > 5 ? 5 : t0; ZR_memcpy(nbuf[0] + lpromptw, ZWS(">...."), t0); @@ -1133,6 +1133,15 @@ refreshline(int ln) if (!*ol) { i = (col_cleareol >= 0) ? col_cleareol : nllen; i -= vcs; + if (i < 0) { + /* + * This shouldn't be necessary, but it's better + * than a crash if there's a bug somewhere else, + * so report in debug mode. + */ + DPUTS(1, "BUG: badly calculated old line width in refresh"); + i = 0; + } zwrite(nl, i); vcs += i; if (col_cleareol >= 0) |