From 3950ffe2a485479f6561c27364d3d7df5a21d124 Mon Sep 17 00:00:00 2001 From: Igor Pashev Date: Sun, 24 Jun 2012 22:28:35 +0000 Subject: Imported Upstream version 93u+ --- src/lib/libast/comp/execve.c | 70 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 src/lib/libast/comp/execve.c (limited to 'src/lib/libast/comp/execve.c') diff --git a/src/lib/libast/comp/execve.c b/src/lib/libast/comp/execve.c new file mode 100644 index 0000000..9d7e2ff --- /dev/null +++ b/src/lib/libast/comp/execve.c @@ -0,0 +1,70 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2011 AT&T Intellectual Property * +* and is licensed under the * +* Eclipse Public License, Version 1.0 * +* by AT&T Intellectual Property * +* * +* A copy of the License is available at * +* http://www.eclipse.org/org/documents/epl-v10.html * +* (with md5 checksum b35adb5213ca9657e911e9befb180842) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler * +* David Korn * +* Phong Vo * +* * +***********************************************************************/ +#pragma prototyped + +#include + +#if _lib_execve + +NoN(execve) + +#else + +#include +#include +#include + +static pid_t childpid; + +static void +execsig(int sig) +{ + kill(childpid, sig); + signal(sig, execsig); +} + +#if defined(__EXPORT__) +#define extern __EXPORT__ +#endif + +extern int +execve(const char* path, char* const argv[], char* const arge[]) +{ + int status; + + if ((childpid = spawnve(path, argv, arge)) < 0) + return(-1); + for (status = 0; status < 64; status++) + signal(status, execsig); + while (waitpid(childpid, &status, 0) == -1) + if (errno != EINTR) return(-1); + if (WIFSIGNALED(status)) + { + signal(WTERMSIG(status), SIG_DFL); + kill(getpid(), WTERMSIG(status)); + pause(); + } + else status = WEXITSTATUS(status); + exit(status); +} + +#endif -- cgit v1.2.3