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-rw-r--r--source/ap/ksh93/patches/ksh-20070328-builtins.patch32
-rw-r--r--source/ap/ksh93/patches/ksh-20100826-fixregr.patch68
-rw-r--r--source/ap/ksh93/patches/ksh-20120801-cdfix.patch14
-rw-r--r--source/ap/ksh93/patches/ksh-20120801-cdfix2.patch25
-rw-r--r--source/ap/ksh93/patches/ksh-20120801-tabfix.patch18
-rw-r--r--source/ap/ksh93/patches/ksh-20130214-fixkill.patch21
-rw-r--r--source/ap/ksh93/patches/rmdirfix.patch505
7 files changed, 683 insertions, 0 deletions
diff --git a/source/ap/ksh93/patches/ksh-20070328-builtins.patch b/source/ap/ksh93/patches/ksh-20070328-builtins.patch
new file mode 100644
index 00000000..5c6b21c2
--- /dev/null
+++ b/source/ap/ksh93/patches/ksh-20070328-builtins.patch
@@ -0,0 +1,32 @@
+diff -up ksh-20120620/src/cmd/ksh93/data/builtins.c.builtins ksh-20120620/src/cmd/ksh93/data/builtins.c
+--- ksh-20120620/src/cmd/ksh93/data/builtins.c.builtins 2012-06-19 10:02:12.000000000 +0200
++++ ksh-20120620/src/cmd/ksh93/data/builtins.c 2012-06-22 12:35:05.587717588 +0200
+@@ -131,20 +131,28 @@ const struct shtable3 shtab_builtins[] =
+ #undef mktemp /* undo possible map-libc mktemp => _ast_mktemp */
+ #include SHOPT_CMDLIB_HDR
+ #else
++#if 1
+ CMDLIST(basename)
+ CMDLIST(chmod)
+ CMDLIST(dirname)
+ CMDLIST(getconf)
+ CMDLIST(head)
++#if 0
++does not work when ACLs are used
+ CMDLIST(mkdir)
++#endif
+ CMDLIST(logname)
++#if 1
++//does not work in chrooted environments, because /dev/fd/? is missing
+ CMDLIST(cat)
++#endif
+ CMDLIST(cmp)
+ CMDLIST(cut)
+ CMDLIST(uname)
+ CMDLIST(wc)
+ CMDLIST(sync)
+ #endif
++#endif
+ #if SHOPT_REGRESS
+ "__regress__", NV_BLTIN|BLT_ENV, bltin(__regress__),
+ #endif
diff --git a/source/ap/ksh93/patches/ksh-20100826-fixregr.patch b/source/ap/ksh93/patches/ksh-20100826-fixregr.patch
new file mode 100644
index 00000000..87cb13c6
--- /dev/null
+++ b/source/ap/ksh93/patches/ksh-20100826-fixregr.patch
@@ -0,0 +1,68 @@
+diff -up ksh-20120801/src/cmd/ksh93/tests/builtins.sh.fixregr ksh-20120801/src/cmd/ksh93/tests/builtins.sh
+--- ksh-20120801/src/cmd/ksh93/tests/builtins.sh.fixregr 2012-07-16 17:23:56.000000000 +0200
++++ ksh-20120801/src/cmd/ksh93/tests/builtins.sh 2012-08-08 12:29:00.733243019 +0200
+@@ -303,9 +303,9 @@ then err_exit "printf '%..*s' not workin
+ fi
+ [[ $(printf '%q\n') == '' ]] || err_exit 'printf "%q" with missing arguments'
+ # we won't get hit by the one second boundary twice, right?
+-[[ $(printf '%T\n' now) == "$(date)" ]] ||
+-[[ $(printf '%T\n' now) == "$(date)" ]] ||
+-err_exit 'printf "%T" now'
++[[ $(printf '%T\n' now | sed 's/GMT/UTC/') == "$(date)" ]] ||
++[[ $(printf '%T\n' now | sed 's/GMT/UTC/') == "$(date)" ]] ||
++err_exit 'printf "%T" now = '"$(printf '%T\n' now) != $(date)"
+ behead()
+ {
+ read line
+diff -up ksh-20120801/src/cmd/ksh93/tests/locale.sh.fixregr ksh-20120801/src/cmd/ksh93/tests/locale.sh
+--- ksh-20120801/src/cmd/ksh93/tests/locale.sh.fixregr 2012-06-26 21:57:46.000000000 +0200
++++ ksh-20120801/src/cmd/ksh93/tests/locale.sh 2012-08-08 12:29:20.039405240 +0200
+@@ -104,6 +104,7 @@ if (( $($SHELL -c $'export LC_ALL='$loca
+ then LC_ALL=$locale $SHELL -c b1=$'"\342\202\254\342\202\254\342\202\254\342\202\254w\342\202\254\342\202\254\342\202\254\342\202\254"; [[ ${b1:4:1} == w ]]' || err_exit 'multibyte ${var:offset:len} not working correctly'
+ fi
+
++locale=en_US.UTF-8
+ #$SHELL -c 'export LANG='$locale'; printf "\u[20ac]\u[20ac]" > $tmp/two_euro_chars.txt'
+ printf $'\342\202\254\342\202\254' > $tmp/two_euro_chars.txt
+ exp="6 2 6"
+@@ -111,11 +112,11 @@ set -- $($SHELL -c "
+ unset LC_CTYPE
+ export LANG=$locale
+ export LC_ALL=C
+- command wc -C < $tmp/two_euro_chars.txt
++ command wc -m < $tmp/two_euro_chars.txt
+ unset LC_ALL
+- command wc -C < $tmp/two_euro_chars.txt
++ command wc -m < $tmp/two_euro_chars.txt
+ export LC_ALL=C
+- command wc -C < $tmp/two_euro_chars.txt
++ command wc -m < $tmp/two_euro_chars.txt
+ ")
+ got=$*
+ [[ $got == $exp ]] || err_exit "command wc LC_ALL default failed -- expected '$exp', got '$got'"
+@@ -134,6 +135,8 @@ set -- $($SHELL -c "
+ got=$*
+ [[ $got == $exp ]] || err_exit "builtin wc LC_ALL default failed -- expected '$exp', got '$got'"
+
++locale=C_EU.UTF-8
++
+ # multibyte char straddling buffer boundary
+
+ {
+@@ -190,6 +193,7 @@ do exp=$1
+ done
+
+ # setocale(LC_ALL,"") after setlocale() initialization
++locale=en_US.UTF-8
+
+ printf 'f1\357\274\240f2\n' > input1
+ printf 't2\357\274\240f1\n' > input2
+@@ -336,7 +340,7 @@ then LC_ALL=en_US.UTF-8
+ [[ $(print -r -- "$x") == $'hello\u[20ac]\xee world' ]] || err_exit '%q with unicode and non-unicode not working'
+ if [[ $(whence od) ]]
+ then got='68 65 6c 6c 6f e2 82 ac ee 20 77 6f 72 6c 64 0a'
+- [[ $(print -r -- "$x" | od -An -tx1) == "$got" ]] || err_exit "incorrect string from printf %q"
++ [[ $(print -r -- "$x" | od -An -tx1) =~ $got ]] || err_exit "incorrect string from printf %q"
+ fi
+
+ fi
diff --git a/source/ap/ksh93/patches/ksh-20120801-cdfix.patch b/source/ap/ksh93/patches/ksh-20120801-cdfix.patch
new file mode 100644
index 00000000..59265dda
--- /dev/null
+++ b/source/ap/ksh93/patches/ksh-20120801-cdfix.patch
@@ -0,0 +1,14 @@
+diff -up ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c.cdfix ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c
+--- ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c.cdfix 2013-02-01 16:04:55.507150242 +0100
++++ ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c 2013-02-01 16:06:39.361007641 +0100
+@@ -214,7 +214,10 @@ int b_cd(int argc, char *argv[],Shbltin_
+ if(*++dp=='.' && (*++dp=='/' || *dp==0))
+ n++;
+ else if(*dp && *dp!='/')
++ {
++ dp--;
+ break;
++ }
+ if(*dp==0)
+ break;
+ }
diff --git a/source/ap/ksh93/patches/ksh-20120801-cdfix2.patch b/source/ap/ksh93/patches/ksh-20120801-cdfix2.patch
new file mode 100644
index 00000000..84bb4912
--- /dev/null
+++ b/source/ap/ksh93/patches/ksh-20120801-cdfix2.patch
@@ -0,0 +1,25 @@
+diff -up ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c.cdfix2 ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c
+--- ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c.cdfix2 2013-02-01 16:46:50.441771371 +0100
++++ ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c 2013-02-01 16:57:43.241784024 +0100
+@@ -61,6 +61,7 @@ int sh_diropenat(Shell_t *shp, int dir,
+ {
+ int fd,shfd;
+ int savederrno=errno;
++ struct stat fs;
+ #ifndef AT_FDCWD
+ NOT_USED(dir);
+ #endif
+@@ -133,6 +134,13 @@ int sh_diropenat(Shell_t *shp, int dir,
+
+ if(fd < 0)
+ return fd;
++
++ if (!fstat(fd, &fs) && !S_ISDIR(fs.st_mode))
++ {
++ close(fd);
++ errno = ENOTDIR;
++ return -1;
++ }
+
+ /* Move fd to a number > 10 and *register* the fd number with the shell */
+ shfd = sh_fcntl(fd, F_dupfd_cloexec, 10);
diff --git a/source/ap/ksh93/patches/ksh-20120801-tabfix.patch b/source/ap/ksh93/patches/ksh-20120801-tabfix.patch
new file mode 100644
index 00000000..962763ed
--- /dev/null
+++ b/source/ap/ksh93/patches/ksh-20120801-tabfix.patch
@@ -0,0 +1,18 @@
+diff -up ksh-20120801/src/cmd/ksh93/edit/emacs.c.tabfix ksh-20120801/src/cmd/ksh93/edit/emacs.c
+--- ksh-20120801/src/cmd/ksh93/edit/emacs.c.tabfix 2012-07-17 22:44:44.000000000 +0200
++++ ksh-20120801/src/cmd/ksh93/edit/emacs.c 2013-03-07 15:58:59.902161711 +0100
+@@ -1011,10 +1011,13 @@ static int escape(register Emacs_t* ep,r
+ ep->ed->e_tabcount=0;
+ else
+ {
++ int oldi = i;
+ i=ed_getchar(ep->ed,0);
+ ed_ungetchar(ep->ed,i);
+- if(isdigit(i))
++ if(isdigit(i) && oldi=='=')
+ ed_ungetchar(ep->ed,ESC);
++ else if (isdigit(i) || i=='\t')
++ ep->ed->e_tabcount=0;
+ }
+ }
+ else
diff --git a/source/ap/ksh93/patches/ksh-20130214-fixkill.patch b/source/ap/ksh93/patches/ksh-20130214-fixkill.patch
new file mode 100644
index 00000000..0862880d
--- /dev/null
+++ b/source/ap/ksh93/patches/ksh-20130214-fixkill.patch
@@ -0,0 +1,21 @@
+diff -up ksh-20130214/src/cmd/ksh93/sh/jobs.c.fixkill ksh-20130214/src/cmd/ksh93/sh/jobs.c
+--- ksh-20130214/src/cmd/ksh93/sh/jobs.c.fixkill 2012-09-26 17:43:04.000000000 +0200
++++ ksh-20130214/src/cmd/ksh93/sh/jobs.c 2013-02-22 16:38:05.080161740 +0100
+@@ -1104,6 +1104,8 @@ static struct process *job_bystring(regi
+
+ int job_kill(register struct process *pw,register int sig)
+ {
++ if(pw==0)
++ goto error;
+ Shell_t *shp = pw->p_shp;
+ register pid_t pid;
+ register int r;
+@@ -1127,8 +1129,6 @@ int job_kill(register struct process *pw
+ #endif /* SIGTSTP */
+ job_lock();
+ errno = ECHILD;
+- if(pw==0)
+- goto error;
+ pid = pw->p_pid;
+ #if SHOPT_COSHELL
+ if(pw->p_cojob)
diff --git a/source/ap/ksh93/patches/rmdirfix.patch b/source/ap/ksh93/patches/rmdirfix.patch
new file mode 100644
index 00000000..132de7db
--- /dev/null
+++ b/source/ap/ksh93/patches/rmdirfix.patch
@@ -0,0 +1,505 @@
+diff -up ksh20120801/src/cmd/ksh93/sh/subshell.c.orig ksh20120801/src/cmd/ksh93/sh/subshell.c
+--- ksh20120801/src/cmd/ksh93/sh/subshell.c.orig 2012-07-17 23:54:21.000000000 +0200
++++ ksh20120801/src/cmd/ksh93/sh/subshell.c 2012-10-24 15:03:44.436870792 +0200
+@@ -40,14 +40,6 @@
+ # define PIPE_BUF 512
+ #endif
+
+-#ifndef O_SEARCH
+-# ifdef O_PATH
+-# define O_SEARCH O_PATH
+-# else
+-# define O_SEARCH 0
+-# endif
+-#endif
+-
+ /*
+ * Note that the following structure must be the same
+ * size as the Dtlink_t structure
+@@ -84,7 +76,7 @@ static struct subshell
+ char *pwd; /* present working directory */
+ const char *shpwd; /* saved pointer to sh.pwd */
+ void *jobs; /* save job info */
+- int pwdfd; /* file descritor for pwd */
++ int shpwdfd;/* fd for present working directory */
+ mode_t mask; /* saved umask */
+ short tmpfd; /* saved tmp file descriptor */
+ short pipefd; /* read fd if pipe is created */
+@@ -101,7 +93,6 @@ static struct subshell
+ int subdup;
+ char subshare;
+ char comsub;
+- char pwdclose;
+ #if SHOPT_COSHELL
+ void *coshell;
+ #endif /* SHOPT_COSHELL */
+@@ -518,7 +509,6 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_
+ shp->pathinit = 0;
+ }
+ sp->pathlist = path_dup((Pathcomp_t*)shp->pathlist);
+- sp->pwdfd = -1;
+ if(!shp->pwd)
+ path_pwd(shp,0);
+ sp->bckpid = shp->bckpid;
+@@ -531,39 +521,14 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_
+ shp->subshare = comsub==2 || (comsub==1 && sh_isoption(SH_SUBSHARE));
+ if(comsub)
+ shp->comsub = comsub;
++ sp->shpwdfd=-1;
+ if(!comsub || !shp->subshare)
+ {
+- struct subshell *xp;
+ sp->shpwd = shp->pwd;
+-#ifdef _lib_fchdir
+- for(xp=sp->prev; xp; xp=xp->prev)
+- {
+- if(xp->pwdfd>0 && strcmp(xp->pwd,shp->pwd)==0)
+- {
+- sp->pwdfd = xp->pwdfd;
+- break;
+- }
+- }
+- if(sp->pwdfd<0)
+- {
+- int n = open(".",O_RDONLY);
+- if(O_SEARCH && errno==EACCES)
+- n = open(".",O_RDONLY);
+- if(n>=0)
+- {
+- sp->pwdfd = n;
+- if(n<10)
+- {
+- sp->pwdfd = fcntl(n,F_DUPFD,10);
+- close(n);
+- }
+- if(sp->pwdfd>0)
+- {
+- fcntl(sp->pwdfd,F_SETFD,FD_CLOEXEC);
+- sp->pwdclose = 1;
+- }
+- }
+- }
++ sp->shpwdfd=((shp->pwdfd >= 0))?sh_fcntl(shp->pwdfd, F_dupfd_cloexec, 10):-1;
++#ifdef O_SEARCH
++ if(sp->shpwdfd<0)
++ errormsg(SH_DICT,ERROR_system(1), "Can't obtain directory fd.");
+ #endif
+ sp->pwd = (shp->pwd?strdup(shp->pwd):0);
+ sp->mask = shp->mask;
+@@ -741,14 +706,11 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_
+ Namval_t *pwdnod = sh_scoped(shp,PWDNOD);
+ if(shp->pwd)
+ {
+- if(sp->pwdfd >=0)
+- {
+- if(fchdir(sp->pwdfd)<0)
+- chdir(sp->pwd);
+- }
+- else
+- chdir(sp->pwd);
+ shp->pwd=sp->pwd;
++#ifndef O_SEARCH
++ if (sp->shpwdfd < 0)
++ chdir(shp->pwd);
++#endif
+ path_newdir(shp,shp->pathlist);
+ }
+ if(nv_isattr(pwdnod,NV_NOFREE))
+@@ -762,8 +724,6 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_
+ }
+ else
+ free((void*)sp->pwd);
+- if(sp->pwdclose)
+- close(sp->pwdfd);
+ if(sp->mask!=shp->mask)
+ umask(shp->mask=sp->mask);
+ if(shp->coutpipe!=sp->coutpipe)
+@@ -775,6 +735,13 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_
+ shp->cpipe[1] = sp->cpipe;
+ shp->coutpipe = sp->coutpipe;
+ }
++ if(sp->shpwdfd >=0)
++ {
++ if(shp->pwdfd >=0)
++ sh_close(shp->pwdfd);
++ shp->pwdfd=sp->shpwdfd;
++ fchdir(shp->pwdfd);
++ }
+ shp->subshare = sp->subshare;
+ shp->comsub = sp->comsub;
+ shp->subdup = sp->subdup;
+diff -up ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c.orig ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c
+--- ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c.orig 2012-08-02 16:50:40.000000000 +0200
++++ ksh-20120801/src/cmd/ksh93/bltins/cd_pwd.c 2012-10-24 15:37:46.814469045 +0200
+@@ -38,6 +38,10 @@
+ #include "builtins.h"
+ #include <ls.h>
+
++#ifndef EINTR_REPEAT
++# define EINTR_REPEAT(expr) while((expr) && (errno == EINTR)) errno=0;
++#endif
++
+ /*
+ * Invalidate path name bindings to relative paths
+ */
+@@ -49,6 +53,95 @@ static void rehash(register Namval_t *np
+ _nv_unset(np,0);
+ }
+
++/*
++ * Obtain a file handle to the directory "path" relative to directory
++ * "dir", or open a NFSv4 xattr directory handle for file dir/path.
++ */
++int sh_diropenat(Shell_t *shp, int dir, const char *path, bool xattr)
++{
++ int fd,shfd;
++ int savederrno=errno;
++#ifndef AT_FDCWD
++ NOT_USED(dir);
++#endif
++#ifndef O_XATTR
++ NOT_USED(xattr);
++#endif
++
++#ifdef O_XATTR
++ if(xattr)
++ {
++ int apfd; /* attribute parent fd */
++ /* open parent node... */
++ EINTR_REPEAT((apfd = openat(dir, path, O_RDONLY|O_NONBLOCK|O_cloexec)) < 0);
++ if(apfd < 0)
++ return -1;
++
++ /* ... and then open a fd to the attribute directory */
++ EINTR_REPEAT((fd = openat(apfd, e_dot, O_XATTR|O_cloexec)) < 0);
++
++ savederrno = errno;
++ EINTR_REPEAT(close(apfd) < 0);
++ errno = savederrno;
++ }
++ else
++#endif
++ {
++#ifdef AT_FDCWD
++ /*
++ * Open directory. First we try without |O_SEARCH| and
++ * if this fails with EACCESS we try with |O_SEARCH|
++ * again.
++ * This is required ...
++ * - ... because some platforms may require that it can
++ * only be used for directories while some filesystems
++ * (e.g. Reiser4 or HSM systems) allow a |fchdir()| into
++ * files, too)
++ * - ... to preserve the semantics of "cd", e.g.
++ * otherwise "cd" would return [No access] instead of
++ * [Not a directory] for files on filesystems which do
++ * not allow a "cd" into files.
++ * - ... to allow that a
++ * $ redirect {n}</etc ; cd /dev/fd/$n # works on most
++ * platforms.
++ */
++ EINTR_REPEAT((fd = openat(dir, path, O_RDONLY|O_NONBLOCK|O_cloexec)) < 0);
++# ifdef O_SEARCH
++ if((fd < 0) && (errno == EACCES))
++ {
++ EINTR_REPEAT((fd = openat(dir, path, O_SEARCH|O_cloexec)) < 0)
++ }
++# endif
++#else
++ /*
++ * Version of openat() call above for systems without
++ * openat API. This only works because we basically
++ * gurantee that |dir| is always the same place as
++ * |cwd| on such machines (but this won't be the case
++ * in the future).
++ */
++ /*
++ * This |fchdir()| call is not needed (yet) since
++ * all consumers do not use |dir| when |AT_FDCWD|
++ * is not available.
++ *
++ * fchdir(dir);
++ */
++ EINTR_REPEAT((fd = open(path, O_cloexec)) < 0);
++#endif
++ }
++
++ if(fd < 0)
++ return fd;
++
++ /* Move fd to a number > 10 and *register* the fd number with the shell */
++ shfd = sh_fcntl(fd, F_dupfd_cloexec, 10);
++ savederrno=errno;
++ sh_close(fd);
++ errno=savederrno;
++ return(shfd);
++}
++
+ int b_cd(int argc, char *argv[],Shbltin_t *context)
+ {
+ register char *dir;
+@@ -56,18 +149,20 @@ int b_cd(int argc, char *argv[],Shbltin_
+ register const char *dp;
+ register Shell_t *shp = context->shp;
+ int saverrno=0;
+- int rval,flag=0;
++ int rval;
++ bool flag=false,xattr=false;
+ char *oldpwd;
++ int newdirfd;
+ Namval_t *opwdnod, *pwdnod;
+ if(sh_isoption(SH_RESTRICTED))
+ errormsg(SH_DICT,ERROR_exit(1),e_restricted+4);
+ while((rval = optget(argv,sh_optcd))) switch(rval)
+ {
+ case 'L':
+- flag = 0;
++ flag = false;
+ break;
+ case 'P':
+- flag = 1;
++ flag = true;
+ break;
+ case ':':
+ errormsg(SH_DICT,2, "%s", opt_info.arg);
+@@ -179,14 +274,72 @@ int b_cd(int argc, char *argv[],Shbltin_
+ continue;
+ #endif /* SHOPT_FS_3D */
+ }
++ rval = newdirfd = sh_diropenat(shp, shp->pwdfd,
++ path_relative(shp,stakptr(PATH_OFFSET)), xattr);
++ if(newdirfd >=0)
++ {
++ /* chdir for directories on HSM/tapeworms may take minutes */
++ if(fchdir(newdirfd) >= 0)
++ {
++ if(shp->pwdfd >= 0)
++ sh_close(shp->pwdfd);
++ shp->pwdfd=newdirfd;
++ goto success;
++ }
++ }
++#ifndef O_SEARCH
++ else
++ {
+ if((rval=chdir(path_relative(shp,stakptr(PATH_OFFSET)))) >= 0)
+- goto success;
+- if(errno!=ENOENT && saverrno==0)
++ {
++ if(shp->pwdfd >= 0)
++ {
++ sh_close(shp->pwdfd);
++#ifdef AT_FDCWD
++ shp->pwdfd = AT_FDCWD;
++#else
++ shp->pwdfd = -1;
++#endif
++ }
++ }
++ }
++#endif
++ if(saverrno==0)
+ saverrno=errno;
++ if(newdirfd >=0)
++ sh_close(newdirfd);
+ }
+ while(cdpath);
+ if(rval<0 && *dir=='/' && *(path_relative(shp,stakptr(PATH_OFFSET)))!='/')
+- rval = chdir(dir);
++ {
++ rval = newdirfd = sh_diropenat(shp,
++ shp->pwdfd,
++ dir, xattr);
++ if(newdirfd >=0)
++ {
++ /* chdir for directories on HSM/tapeworms may take minutes */
++ if(fchdir(newdirfd) >= 0)
++ {
++ if(shp->pwdfd >= 0)
++ sh_close(shp->pwdfd);
++ shp->pwdfd=newdirfd;
++ goto success;
++ }
++ }
++#ifndef O_SEARCH
++ else
++ {
++ if(chdir(dir) >=0)
++ {
++ if(shp->pwdfd >= 0)
++ {
++ sh_close(shp->pwdfd);
++ shp->pwdfd=-1;
++ }
++ }
++ }
++#endif
++ }
+ /* use absolute chdir() if relative chdir() fails */
+ if(rval<0)
+ {
+@@ -213,7 +366,7 @@ success:
+ if(*dir != '/')
+ return(0);
+ nv_putval(opwdnod,oldpwd,NV_RDONLY);
+- flag = strlen(dir);
++ flag = (strlen(dir)>0)?true:false;
+ /* delete trailing '/' */
+ while(--flag>0 && dir[flag]=='/')
+ dir[flag] = 0;
+diff -up ksh-20120801/src/cmd/ksh93/include/shell.h.orig ksh-20120801/src/cmd/ksh93/include/shell.h
+--- ksh-20120801/src/cmd/ksh93/include/shell.h.orig 2012-07-17 22:07:40.000000000 +0200
++++ ksh-20120801/src/cmd/ksh93/include/shell.h 2012-10-24 15:42:10.756987230 +0200
+@@ -145,6 +145,7 @@ struct Shell_s
+ unsigned char trapnote; /* set when trap/signal is pending */
+ char shcomp; /* set when runing shcomp */
+ short subshell; /* set for virtual subshell */
++ int pwdfd; /* file descriptor for pwd */
+ #ifdef _SH_PRIVATE
+ _SH_PRIVATE
+ #endif /* _SH_PRIVATE */
+diff -up ksh-20120801/src/cmd/ksh93/sh/init.c.orig ksh-20120801/src/cmd/ksh93/sh/init.c
+--- ksh-20120801/src/cmd/ksh93/sh/init.c.orig 2012-05-11 19:19:10.000000000 +0200
++++ ksh-20120801/src/cmd/ksh93/sh/init.c 2012-10-24 15:31:59.659485151 +0200
+@@ -1365,6 +1365,18 @@ Shell_t *sh_init(register int argc,regis
+ }
+ }
+ sh_ioinit(shp);
++#ifdef AT_FDCWD
++ shp->pwdfd = sh_diropenat(shp, AT_FDCWD, e_dot, false);
++#else
++ /* Systems without AT_FDCWD/openat() do not use the |dir| argument */
++ shp->pwdfd = sh_diropenat(shp, -1, e_dot, false);
++#endif
++#ifdef O_SEARCH
++ /* This should _never_ happen, guranteed by design and goat sacrifice */
++ if(shp->pwdfd < 0)
++ errormsg(SH_DICT,ERROR_system(1), "Can't obtain directory fd.");
++#endif
++
+ /* initialize signal handling */
+ sh_siginit(shp);
+ stakinstall(NIL(Stak_t*),nospace);
+diff -up ksh-20120801/src/cmd/ksh93/sh/xec.c.orig ksh-20120801/src/cmd/ksh93/sh/xec.c
+--- ksh-20120801/src/cmd/ksh93/sh/xec.c.orig 2012-07-23 16:49:32.000000000 +0200
++++ ksh-20120801/src/cmd/ksh93/sh/xec.c 2012-10-24 15:35:02.209539671 +0200
+@@ -1348,8 +1348,12 @@ int sh_exec(register const Shnode_t *t,
+ {
+ if(!shp->pwd)
+ path_pwd(shp,0);
+- if(shp->pwd)
+- stat(".",&statb);
++#ifndef O_SEARCH
++ else if (shp->pwdfd>=0)
++ fstat(shp->pwdfd,&statb);
++ else if (shp->pwd)
++ stat(e_dot,&statb);
++#endif
+ sfsync(NULL);
+ share = sfset(sfstdin,SF_SHARE,0);
+ sh_onstate(SH_STOPOK);
+@@ -1428,14 +1432,32 @@ int sh_exec(register const Shnode_t *t,
+ sh_offstate(SH_NOFORK);
+ if(!(nv_isattr(np,BLT_ENV)))
+ {
+- if(shp->pwd)
++#ifdef O_SEARCH
++ while((fchdir(shp->pwdfd) < 0) && errno==EINTR)
++ errno = 0;
++#else
++ if(shp->pwd || (shp->pwdfd >= 0))
+ {
+ struct stat stata;
+ stat(".",&stata);
+ /* restore directory changed */
+ if(statb.st_ino!=stata.st_ino || statb.st_dev!=stata.st_dev)
+- chdir(shp->pwd);
++ {
++ /* chdir for directories on HSM/tapeworms may take minutes */
++ int err=errno;
++ if(shp->pwdfd >= 0)
++ {
++ while((fchdir(shp->pwdfd) < 0) && errno==EINTR)
++ errno = err;
++ }
++ else
++ {
++ while((chdir(shp->pwd) < 0) && errno==EINTR)
++ errno = err;
++ }
++ }
+ }
++#endif /* O_SEARCH */
+ sh_offstate(SH_STOPOK);
+ if(share&SF_SHARE)
+ sfset(sfstdin,SF_PUBLIC|SF_SHARE,1);
+diff -up ksh-20120801/src/lib/libast/features/common.orig ksh-20120801/src/lib/libast/features/common
+--- ksh-20120801/src/lib/libast/features/common.orig 2011-12-12 20:55:33.000000000 +0100
++++ ksh-20120801/src/lib/libast/features/common 2012-10-24 15:54:35.433885131 +0200
+@@ -463,6 +463,66 @@ typ uintptr_t stdint.h inttypes.h no{
+ typedef unsigned _ast_int4_t uintptr_t;
+ #endif
+ }end
++typ _Bool = uint8_t
++cat{
++ #if defined(_STDC_C99) || __STDC_VERSION__ >= 199901L
++ #include <stdbool.h>
++ #else
++ #define bool _Bool
++ #define false 0
++ #define true 1
++ #endif
++}end
++tst key __thread -lpthread note{ __thread keyword exists and works with -lpthread }end execute{
++ #include <pthread.h>
++
++ #define INITIAL 1
++ #define LOOP 100
++
++ static __thread int specific = INITIAL;
++ static int global = 0;
++
++ static void* worker(void* arg)
++ {
++ int k;
++ int v;
++ v = (int)(arg - 0);
++ for (k = 0; k < LOOP; ++k)
++ {
++ specific += v;
++ usleep(1);
++ }
++ if (specific != (INITIAL + LOOP * v))
++ global = 1;
++ return 0;
++ }
++ int main()
++ {
++ pthread_t th[2];
++
++ if (pthread_create(&th[0], 0, worker, (void*)0 + 5) ||
++ pthread_create(&th[1], 0, worker, (void*)0 + 7))
++ {
++ NOTE("pthread_create failed");
++ return 1;
++ }
++ pthread_join(th[0], 0);
++ pthread_join(th[1], 0);
++ if (global)
++ {
++ NOTE("__thread variable not thread specific");
++ return 1;
++ }
++ if (specific != INITIAL)
++ {
++ NOTE("main __thread variable changed by another thread");
++ return 1;
++ }
++ return 0;
++ }
++}end no{
++ #define __thread /* __thread keyword does not exist or does not work with -lpthread */
++}end
+
+ tst - -DTRY=1 - -DTRY=1 -Dvoid=char - -DTRY=2 - -DTRY=3 - -DTRY=4 output{
+ #if _STD_ && _hdr_stdarg