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sh(1) incorrectly ignored an EOF condition when looking for the

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closing backquote in a `foo` substitution.

Discovered by: Martin Welk <mw@theatre.pandora.sax.de>
This commit is contained in:
Joerg Wunsch 1995-08-11 08:18:39 +00:00
parent 67d7e54eb1
commit 72348d41ba
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=10025
1 changed files with 5 additions and 1 deletions
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6
bin/sh/parser.c
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@ -33,7 +33,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: parser.c,v 1.5 1995/01/11 07:07:00 paul Exp $
* $Id: parser.c,v 1.6 1995/05/30 00:07:22 rgrimes Exp $
*/
#ifndef lint
@ -1179,6 +1179,10 @@ parsebackq: {
STARTSTACKSTR(out);
while ((c = pgetc ()) != '`') {
if (c == PEOF) {
startlinno = plinno;
synerror("EOF in backquote substitution");
}
if (c == '\\') {
c = pgetc ();
if ( c != '\\' && c != '`' && c != '$'