14887Schin /*********************************************************************** 24887Schin * * 34887Schin * This software is part of the ast package * 4*12068SRoger.Faulkner@Oracle.COM * Copyright (c) 1985-2010 AT&T Intellectual Property * 54887Schin * and is licensed under the * 64887Schin * Common Public License, Version 1.0 * 78462SApril.Chin@Sun.COM * by AT&T Intellectual Property * 84887Schin * * 94887Schin * A copy of the License is available at * 104887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 114887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 124887Schin * * 134887Schin * Information and Software Systems Research * 144887Schin * AT&T Research * 154887Schin * Florham Park NJ * 164887Schin * * 174887Schin * Glenn Fowler <gsf@research.att.com> * 184887Schin * David Korn <dgk@research.att.com> * 194887Schin * Phong Vo <kpv@research.att.com> * 204887Schin * * 214887Schin ***********************************************************************/ 224887Schin #pragma prototyped 234887Schin 244887Schin #include <ast.h> 254887Schin 264887Schin #if _lib_execve 274887Schin 284887Schin NoN(execve) 294887Schin 304887Schin #else 314887Schin 324887Schin #include <sig.h> 334887Schin #include <wait.h> 344887Schin #include <error.h> 354887Schin 364887Schin static pid_t childpid; 374887Schin 384887Schin static void 394887Schin execsig(int sig) 404887Schin { 414887Schin kill(childpid, sig); 424887Schin signal(sig, execsig); 434887Schin } 444887Schin 454887Schin #if defined(__EXPORT__) 464887Schin #define extern __EXPORT__ 474887Schin #endif 484887Schin 494887Schin extern int 504887Schin execve(const char* path, char* const argv[], char* const arge[]) 514887Schin { 524887Schin int status; 534887Schin 544887Schin if ((childpid = spawnve(path, argv, arge)) < 0) 554887Schin return(-1); 564887Schin for (status = 0; status < 64; status++) 574887Schin signal(status, execsig); 584887Schin while (waitpid(childpid, &status, 0) == -1) 594887Schin if (errno != EINTR) return(-1); 604887Schin if (WIFSIGNALED(status)) 614887Schin { 624887Schin signal(WTERMSIG(status), SIG_DFL); 634887Schin kill(getpid(), WTERMSIG(status)); 644887Schin pause(); 654887Schin } 664887Schin else status = WEXITSTATUS(status); 674887Schin exit(status); 684887Schin } 694887Schin 704887Schin #endif 71