1da2e3ebdSchin /*********************************************************************** 2da2e3ebdSchin * * 3da2e3ebdSchin * This software is part of the ast package * 4*3e14f97fSRoger A. Faulkner * Copyright (c) 1985-2010 AT&T Intellectual Property * 5da2e3ebdSchin * and is licensed under the * 6da2e3ebdSchin * Common Public License, Version 1.0 * 77c2fbfb3SApril Chin * by AT&T Intellectual Property * 8da2e3ebdSchin * * 9da2e3ebdSchin * A copy of the License is available at * 10da2e3ebdSchin * http://www.opensource.org/licenses/cpl1.0.txt * 11da2e3ebdSchin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12da2e3ebdSchin * * 13da2e3ebdSchin * Information and Software Systems Research * 14da2e3ebdSchin * AT&T Research * 15da2e3ebdSchin * Florham Park NJ * 16da2e3ebdSchin * * 17da2e3ebdSchin * Glenn Fowler <gsf@research.att.com> * 18da2e3ebdSchin * David Korn <dgk@research.att.com> * 19da2e3ebdSchin * Phong Vo <kpv@research.att.com> * 20da2e3ebdSchin * * 21da2e3ebdSchin ***********************************************************************/ 22da2e3ebdSchin #pragma prototyped 23da2e3ebdSchin 24da2e3ebdSchin #include <ast.h> 25da2e3ebdSchin 26da2e3ebdSchin #if _lib_execve 27da2e3ebdSchin 28da2e3ebdSchin NoN(execve) 29da2e3ebdSchin 30da2e3ebdSchin #else 31da2e3ebdSchin 32da2e3ebdSchin #include <sig.h> 33da2e3ebdSchin #include <wait.h> 34da2e3ebdSchin #include <error.h> 35da2e3ebdSchin 36da2e3ebdSchin static pid_t childpid; 37da2e3ebdSchin 38da2e3ebdSchin static void 39da2e3ebdSchin execsig(int sig) 40da2e3ebdSchin { 41da2e3ebdSchin kill(childpid, sig); 42da2e3ebdSchin signal(sig, execsig); 43da2e3ebdSchin } 44da2e3ebdSchin 45da2e3ebdSchin #if defined(__EXPORT__) 46da2e3ebdSchin #define extern __EXPORT__ 47da2e3ebdSchin #endif 48da2e3ebdSchin 49da2e3ebdSchin extern int 50da2e3ebdSchin execve(const char* path, char* const argv[], char* const arge[]) 51da2e3ebdSchin { 52da2e3ebdSchin int status; 53da2e3ebdSchin 54da2e3ebdSchin if ((childpid = spawnve(path, argv, arge)) < 0) 55da2e3ebdSchin return(-1); 56da2e3ebdSchin for (status = 0; status < 64; status++) 57da2e3ebdSchin signal(status, execsig); 58da2e3ebdSchin while (waitpid(childpid, &status, 0) == -1) 59da2e3ebdSchin if (errno != EINTR) return(-1); 60da2e3ebdSchin if (WIFSIGNALED(status)) 61da2e3ebdSchin { 62da2e3ebdSchin signal(WTERMSIG(status), SIG_DFL); 63da2e3ebdSchin kill(getpid(), WTERMSIG(status)); 64da2e3ebdSchin pause(); 65da2e3ebdSchin } 66da2e3ebdSchin else status = WEXITSTATUS(status); 67da2e3ebdSchin exit(status); 68da2e3ebdSchin } 69da2e3ebdSchin 70da2e3ebdSchin #endif 71