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author | Andy Fiddaman <omnios@citrus-it.co.uk> | 2020-12-27 17:47:37 +0000 |
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committer | Andy Fiddaman <omnios@citrus-it.co.uk> | 2021-01-30 17:13:33 +0000 |
commit | b30d193948be5a7794d7ae3ba0ed9c2f72c88e0f (patch) | |
tree | 6a37e590faffb9bb9af66887de645c546445036c /usr/src/lib/libast/common/comp/waitpid.c | |
parent | df36e06d12cbf655ddf22339ef8c39fa2b83ebf8 (diff) | |
download | illumos-joyent-b30d193948be5a7794d7ae3ba0ed9c2f72c88e0f.tar.gz |
13405 ksh93 update to 2012-08-01
13434 sh: mishandles backslash as last character of a block of input
11750 ksh mkdir builtin doesn't honor special file permissions
9199 ksh93 builtin *grep -v mishandles blank lines, blows up libgcrypt-config
6756 sh (and ksh) have issues with ${1+"$@"}
6520 ksh: sleep could wait forever
4860 ksh93: core in printf
3791 /bin/sh's builtin 'rm' busted: 'rm -f' without arguments returns error
1047 ksh overwrites child core files
880 ksh93 coredumps on 'unset'
499 "interrupted system call" when using "tee" builtin in ksh
Reviewed by: Robert Mustacchi <rm@fingolfin.org>
Reviewed by: Hans Rosenfeld <rosenfeld@grumpf.hope-2000.org>
Reviewed by: Dominik Hassler <hadfl@omnios.org>
Approved by: Rich Lowe <richlowe@richlowe.net>
Diffstat (limited to 'usr/src/lib/libast/common/comp/waitpid.c')
-rw-r--r-- | usr/src/lib/libast/common/comp/waitpid.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/usr/src/lib/libast/common/comp/waitpid.c b/usr/src/lib/libast/common/comp/waitpid.c deleted file mode 100644 index 1b09472709..0000000000 --- a/usr/src/lib/libast/common/comp/waitpid.c +++ /dev/null @@ -1,199 +0,0 @@ -/*********************************************************************** -* * -* This software is part of the ast package * -* Copyright (c) 1985-2010 AT&T Intellectual Property * -* and is licensed under the * -* Common Public License, Version 1.0 * -* by AT&T Intellectual Property * -* * -* A copy of the License is available at * -* http://www.opensource.org/licenses/cpl1.0.txt * -* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * -* * -* Information and Software Systems Research * -* AT&T Research * -* Florham Park NJ * -* * -* Glenn Fowler <gsf@research.att.com> * -* David Korn <dgk@research.att.com> * -* Phong Vo <kpv@research.att.com> * -* * -***********************************************************************/ -#pragma prototyped -/* - * POSIX waitpid() - * - * pid < -1 WUNTRACED may not be fully supported - * process group specifics ignored by non-{waitpid,wait4} - */ - -#include <ast.h> -#include <wait.h> - -#if _lib_waitpid - -NoN(waitpid) - -#else - -#if _lib_wait4 - -struct rusage; - -extern int wait4(int, int*, int, struct rusage*); - -pid_t -waitpid(pid_t pid, int* status, int flags) -{ - return(wait4(pid, status, flags, NiL)); -} - -#else - -#undef SIGCLD - -#if _lib_wait3 - -extern int wait3(int*, int, struct rusage*); - -#else - -#if _lib_wait2 - -#define wait3(s,f,u) wait2(s,f) - -extern int wait2(int*, int); - -#else - -#include <sig.h> - -#define wait3(s,f,u) wait(s) - -static int caught; - -static void -catch(sig) -int sig; -{ - NoP(sig); - caught = 1; -} - -#endif - -#endif - -#include <error.h> - -struct zombie -{ - struct zombie* next; - int status; - pid_t pid; -}; - -pid_t -waitpid(pid_t pid, int* status, int flags) -{ - register struct zombie* zp; - register struct zombie* pp; - register int p; - int s; -#if !_lib_wait2 && !_lib_wait3 -#if !defined(SIGCLD) - int n; - int oerrno; -#endif - Sig_handler_t handler; -#endif - - static struct zombie* zombies; - - pp = 0; - zp = zombies; - while (zp) - { - if (zp->pid >= 0 && (zp->pid == pid || pid <= 0)) - { - if (pp) pp->next = zp->next; - else zombies = zp->next; - if (status) *status = zp->status; - pid = zp->pid; - free(zp); - return(pid); - } - } - if (pid > 0 && kill(pid, 0) < 0) return(-1); - for (;;) - { -#if !_lib_wait2 && !_lib_wait3 -#if !defined(SIGCLD) - oerrno = errno; -#endif - if (flags & WNOHANG) - { - caught = 0; -#if defined(SIGCLD) - handler = signal(SIGCLD, catch); - if (!caught) - { - signal(SIGCLD, handler); - return(0); - } -#else -#if defined(SIGALRM) - handler = signal(SIGALRM, catch); - n = alarm(1); -#endif -#endif - } -#endif - p = wait3(&s, flags, NiL); -#if !_lib_wait3 -#if !_lib_wait2 -#if defined(SIGCLD) - if (flags & WNOHANG) signal(SIGCLD, handler); -#else -#if defined(SIGALRM) - if (flags & WNOHANG) - { - if (n == 0 && !caught || n == 1) alarm(n); - else if (n > 1) alarm(n - caught); - signal(SIGALRM, handler); - } - if (p == -1 && errno == EINTR) - { - errno = oerrno; - p = 0; - s = 0; - } -#endif -#endif -#else - if (p == -1 && errno == EINVAL && (flags & ~WNOHANG)) - p = wait3(&s, flags & WNOHANG, NiL); -#endif -#endif - if (p <= 0) - { - if (p == 0 && status) *status = s; - return(p); - } - if (pid <= 0 || p == pid) - { - if (status) *status = s; - return(p); - } - if (!(zp = newof(0, struct zombie, 1, 0))) return(-1); - zp->pid = p; - zp->status = s; - zp->next = zombies; - zombies = zp; - } - /*NOTREACHED*/ -} - -#endif - -#endif |