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fix order of bounds checks; inspired by NetBSD#50747

This commit is contained in:
tg 2016-04-14 11:51:26 +00:00
parent 83cde99aee
commit 1cc8f76f07
1 changed files with 12 additions and 12 deletions
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24
edit.c
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@ -28,7 +28,7 @@
#ifndef MKSH_NO_CMDLINE_EDITING
__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.294 2016/03/04 14:26:12 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.295 2016/04/14 11:51:26 tg Exp $");
/*
* in later versions we might use libtermcap for this, but since external
@ -4918,16 +4918,16 @@ forwword(int argcnt)
ncursor = es->cursor;
while (ncursor < es->linelen && argcnt--) {
if (ksh_isalnux(es->cbuf[ncursor]))
while (ksh_isalnux(es->cbuf[ncursor]) &&
ncursor < es->linelen)
while (ncursor < es->linelen &&
ksh_isalnux(es->cbuf[ncursor]))
ncursor++;
else if (!ksh_isspace(es->cbuf[ncursor]))
while (!ksh_isalnux(es->cbuf[ncursor]) &&
!ksh_isspace(es->cbuf[ncursor]) &&
ncursor < es->linelen)
while (ncursor < es->linelen &&
!ksh_isalnux(es->cbuf[ncursor]) &&
!ksh_isspace(es->cbuf[ncursor]))
ncursor++;
while (ksh_isspace(es->cbuf[ncursor]) &&
ncursor < es->linelen)
while (ncursor < es->linelen &&
ksh_isspace(es->cbuf[ncursor]))
ncursor++;
}
return (ncursor);
@ -4991,11 +4991,11 @@ Forwword(int argcnt)
ncursor = es->cursor;
while (ncursor < es->linelen && argcnt--) {
while (!ksh_isspace(es->cbuf[ncursor]) &&
ncursor < es->linelen)
while (ncursor < es->linelen &&
!ksh_isspace(es->cbuf[ncursor]))
ncursor++;
while (ksh_isspace(es->cbuf[ncursor]) &&
ncursor < es->linelen)
while (ncursor < es->linelen &&
ksh_isspace(es->cbuf[ncursor]))
ncursor++;
}
return (ncursor);