diff options
Diffstat (limited to 'contrib/lukemftpd/src/popen.c')
| -rw-r--r-- | contrib/lukemftpd/src/popen.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/contrib/lukemftpd/src/popen.c b/contrib/lukemftpd/src/popen.c deleted file mode 100644 index e7aeb3c..0000000 --- a/contrib/lukemftpd/src/popen.c +++ /dev/null @@ -1,250 +0,0 @@ -/* $NetBSD: popen.c,v 1.31 2006/02/01 14:20:14 christos Exp $ */ - -/*- - * Copyright (c) 1999-2004 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by Luke Mewburn. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the NetBSD - * Foundation, Inc. and its contributors. - * 4. Neither the name of The NetBSD Foundation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * Copyright (c) 1988, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software written by Ken Arnold and - * published in UNIX Review, Vol. 6, No. 8. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - -#include <sys/cdefs.h> -#ifndef lint -#if 0 -static char sccsid[] = "@(#)popen.c 8.3 (Berkeley) 4/6/94"; -#else -__RCSID("$NetBSD: popen.c,v 1.31 2006/02/01 14:20:14 christos Exp $"); -#endif -#endif /* not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/wait.h> - -#include <errno.h> -#include <glob.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stringlist.h> -#include <syslog.h> -#include <unistd.h> - -#ifdef KERBEROS5 -#include <krb5/krb5.h> -#endif - -#include "extern.h" - -#define INCR 100 -/* - * Special version of popen which avoids call to shell. This ensures no-one - * may create a pipe to a hidden program as a side effect of a list or dir - * command. - * If stderrfd != -1, then send stderr of a read command there, - * otherwise close stderr. - */ -static int *pids; -static int fds; - -extern int ls_main(int, char *[]); - -FILE * -ftpd_popen(char *argv[], const char *ptype, int stderrfd) -{ - FILE *iop; - int argc, pdes[2], pid, isls; - char **pop; - StringList *sl; - - iop = NULL; - isls = 0; - if ((*ptype != 'r' && *ptype != 'w') || ptype[1]) - return (NULL); - - if (!pids) { - if ((fds = getdtablesize()) <= 0) - return (NULL); - if ((pids = (int *)malloc((u_int)(fds * sizeof(int)))) == NULL) - return (NULL); - memset(pids, 0, fds * sizeof(int)); - } - if (pipe(pdes) < 0) - return (NULL); - - if ((sl = sl_init()) == NULL) - goto pfree; - - /* glob each piece */ - if (sl_add(sl, ftpd_strdup(argv[0])) == -1) - goto pfree; - for (argc = 1; argv[argc]; argc++) { - glob_t gl; - int flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_TILDE|GLOB_LIMIT; - - memset(&gl, 0, sizeof(gl)); - if (glob(argv[argc], flags, NULL, &gl)) { - if (sl_add(sl, ftpd_strdup(argv[argc])) == -1) { - globfree(&gl); - goto pfree; - } - } else { - for (pop = gl.gl_pathv; *pop; pop++) { - if (sl_add(sl, ftpd_strdup(*pop)) == -1) { - globfree(&gl); - goto pfree; - } - } - } - globfree(&gl); - } - if (sl_add(sl, NULL) == -1) - goto pfree; - -#ifndef NO_INTERNAL_LS - isls = (strcmp(sl->sl_str[0], INTERNAL_LS) == 0); -#endif - - pid = isls ? fork() : vfork(); - switch (pid) { - case -1: /* error */ - (void)close(pdes[0]); - (void)close(pdes[1]); - goto pfree; - /* NOTREACHED */ - case 0: /* child */ - if (*ptype == 'r') { - if (pdes[1] != STDOUT_FILENO) { - dup2(pdes[1], STDOUT_FILENO); - (void)close(pdes[1]); - } - if (stderrfd == -1) - (void)close(STDERR_FILENO); - else - dup2(stderrfd, STDERR_FILENO); - (void)close(pdes[0]); - } else { - if (pdes[0] != STDIN_FILENO) { - dup2(pdes[0], STDIN_FILENO); - (void)close(pdes[0]); - } - (void)close(pdes[1]); - } -#ifndef NO_INTERNAL_LS - if (isls) { /* use internal ls */ - optreset = optind = optopt = 1; - closelog(); - exit(ls_main(sl->sl_cur - 1, sl->sl_str)); - } -#endif - - execv(sl->sl_str[0], sl->sl_str); - _exit(1); - } - /* parent; assume fdopen can't fail... */ - if (*ptype == 'r') { - iop = fdopen(pdes[0], ptype); - (void)close(pdes[1]); - } else { - iop = fdopen(pdes[1], ptype); - (void)close(pdes[0]); - } - pids[fileno(iop)] = pid; - - pfree: - if (sl) - sl_free(sl, 1); - return (iop); -} - -int -ftpd_pclose(FILE *iop) -{ - int fdes, status; - pid_t pid; - sigset_t nsigset, osigset; - - /* - * pclose returns -1 if stream is not associated with a - * `popened' command, or, if already `pclosed'. - */ - if (pids == 0 || pids[fdes = fileno(iop)] == 0) - return (-1); - (void)fclose(iop); - sigemptyset(&nsigset); - sigaddset(&nsigset, SIGINT); - sigaddset(&nsigset, SIGQUIT); - sigaddset(&nsigset, SIGHUP); - sigprocmask(SIG_BLOCK, &nsigset, &osigset); - while ((pid = waitpid(pids[fdes], &status, 0)) < 0 && errno == EINTR) - continue; - sigprocmask(SIG_SETMASK, &osigset, NULL); - pids[fdes] = 0; - if (pid < 0) - return (pid); - if (WIFEXITED(status)) - return (WEXITSTATUS(status)); - return (1); -} |
