/* vi: set sw=4 ts=4: *//* * Utility routines. * * Copyright (C) many different people.  If you wrote this, please * acknowledge your work. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA */#include <sys/types.h>#include <sys/wait.h>#include <signal.h>#include <stdlib.h>#include <string.h>#include <unistd.h>#include "libbb.h"extern FILE *gz_open(FILE *compressed_file, int *pid){	int unzip_pipe[2];	if (pipe(unzip_pipe)!=0) {		error_msg("pipe error");		return(NULL);	}#ifndef __uClinux__	if ((*pid = fork()) == -1) {		error_msg("fork failed");		return(NULL);	}	if (*pid==0) {		/* child process */		close(unzip_pipe[0]);		unzip(compressed_file, fdopen(unzip_pipe[1], "w"));		fflush(NULL);		fclose(compressed_file);		close(unzip_pipe[1]);		exit(EXIT_SUCCESS);	}#else	return NULL;#endif /* __uClinux__ */	close(unzip_pipe[1]);	if (unzip_pipe[0] == -1) {		error_msg("gzip stream init failed");	}	return(fdopen(unzip_pipe[0], "r"));}