JehanneOS/mksh
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

do not leak file descriptors on builtins

Browse Source 
(this is for valgrind; we use close-on-exec on them in the normal case)
This commit is contained in:
tg 2013-02-10 21:08:35 +00:00
parent 2b06709bf3
commit 51345bd33b
1 changed files with 16 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
eval.c
View File

@ -2,7 +2,7 @@
/*-
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
* 2011, 2012
* 2011, 2012, 2013
* Thorsten Glaser <tg@mirbsd.org>
*
* Provided that these terms and disclaimer and all copyright notices
@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.132 2012/12/17 23:18:03 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.133 2013/02/10 21:08:35 tg Exp $");
/*
* string expansion
@ -1340,10 +1340,23 @@ comsub(Expand *xp, const char *cp, int fn MKSH_A_UNUSED)
unlink(tf->tffn);
afree(tf, ATEMP);
} else {
int ofd1, pv[2];
#ifdef DEBUG_LEAKS
#define ofd1 e->savefd[1]
#else
int ofd1;
#endif
int pv[2];
openpipe(pv);
shf = shf_fdopen(pv[0], SHF_RD, NULL);
#ifdef DEBUG_LEAKS
if (!e->savefd) {
e->savefd = alloc2(NUFILE, sizeof(short), ATEMP);
memset(e->savefd, 0, NUFILE * sizeof(short));
}
/* hack to get it closed in child */
e->savefd[pv[0]] = pv[0];
#endif
ofd1 = savefd(1);
if (pv[1] != 1) {
ksh_dup2(pv[1], 1, false);