/* * spawnvp function * * Copyright 2003 Dimitrie O. Paun * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include <errno.h> #include <signal.h> #include <stdlib.h> #ifdef HAVE_SYS_WAIT_H #include <sys/wait.h> #endif #include <sys/stat.h> #ifdef HAVE_UNISTD_H # include <unistd.h> #endif #ifndef HAVE_SPAWNVP int spawnvp(int mode, const char *cmdname, const char *const argv[]) { #ifndef HAVE__SPAWNVP int pid = 0, status, wret; struct sigaction dfl_act, old_act; if (mode == _P_OVERLAY) { execvp(cmdname, (char **)argv); /* if we get here it failed */ if (errno != ENOTSUP) return -1; /* exec fails on MacOS if the process has multiple threads */ } dfl_act.sa_handler = SIG_DFL; dfl_act.sa_flags = 0; sigemptyset( &dfl_act.sa_mask ); if (mode == _P_WAIT) sigaction( SIGCHLD, &dfl_act, &old_act ); pid = fork(); if (pid == 0) { sigaction( SIGPIPE, &dfl_act, NULL ); execvp(cmdname, (char **)argv); _exit(1); } if (pid != -1 && mode == _P_OVERLAY) exit(0); if (pid != -1 && mode == _P_WAIT) { while (pid != (wret = waitpid(pid, &status, 0))) if (wret == -1 && errno != EINTR) break; if (pid == wret && WIFEXITED(status)) pid = WEXITSTATUS(status); else pid = 255; /* abnormal exit with an abort or an interrupt */ } if (mode == _P_WAIT) sigaction( SIGCHLD, &old_act, NULL ); return pid; #else /* HAVE__SPAWNVP */ return _spawnvp(mode, cmdname, argv); #endif /* HAVE__SPAWNVP */ } #endif /* HAVE_SPAWNVP */