diff options
Diffstat (limited to 'crypto/openssh/openbsd-compat/bsd-closefrom.c')
| -rw-r--r-- | crypto/openssh/openbsd-compat/bsd-closefrom.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/crypto/openssh/openbsd-compat/bsd-closefrom.c b/crypto/openssh/openbsd-compat/bsd-closefrom.c deleted file mode 100644 index 9380b33..0000000 --- a/crypto/openssh/openbsd-compat/bsd-closefrom.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * Copyright (c) 2004-2005 Todd C. Miller <Todd.Miller@courtesan.com> - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "includes.h" - -#ifndef HAVE_CLOSEFROM - -#include <sys/types.h> -#include <sys/param.h> -#include <unistd.h> -#include <stdio.h> -#ifdef HAVE_FCNTL_H -# include <fcntl.h> -#endif -#include <limits.h> -#include <stdlib.h> -#include <stddef.h> -#include <string.h> -#include <unistd.h> -#ifdef HAVE_DIRENT_H -# include <dirent.h> -# define NAMLEN(dirent) strlen((dirent)->d_name) -#else -# define dirent direct -# define NAMLEN(dirent) (dirent)->d_namlen -# ifdef HAVE_SYS_NDIR_H -# include <sys/ndir.h> -# endif -# ifdef HAVE_SYS_DIR_H -# include <sys/dir.h> -# endif -# ifdef HAVE_NDIR_H -# include <ndir.h> -# endif -#endif - -#ifndef OPEN_MAX -# define OPEN_MAX 256 -#endif - -#if 0 -__unused static const char rcsid[] = "$Sudo: closefrom.c,v 1.11 2006/08/17 15:26:54 millert Exp $"; -#endif /* lint */ - -/* - * Close all file descriptors greater than or equal to lowfd. - */ -#ifdef HAVE_FCNTL_CLOSEM -void -closefrom(int lowfd) -{ - (void) fcntl(lowfd, F_CLOSEM, 0); -} -#else -void -closefrom(int lowfd) -{ - long fd, maxfd; -#if defined(HAVE_DIRFD) && defined(HAVE_PROC_PID) - char fdpath[PATH_MAX], *endp; - struct dirent *dent; - DIR *dirp; - int len; - - /* Check for a /proc/$$/fd directory. */ - len = snprintf(fdpath, sizeof(fdpath), "/proc/%ld/fd", (long)getpid()); - if (len > 0 && (size_t)len <= sizeof(fdpath) && (dirp = opendir(fdpath))) { - while ((dent = readdir(dirp)) != NULL) { - fd = strtol(dent->d_name, &endp, 10); - if (dent->d_name != endp && *endp == '\0' && - fd >= 0 && fd < INT_MAX && fd >= lowfd && fd != dirfd(dirp)) - (void) close((int) fd); - } - (void) closedir(dirp); - } else -#endif - { - /* - * Fall back on sysconf() or getdtablesize(). We avoid checking - * resource limits since it is possible to open a file descriptor - * and then drop the rlimit such that it is below the open fd. - */ -#ifdef HAVE_SYSCONF - maxfd = sysconf(_SC_OPEN_MAX); -#else - maxfd = getdtablesize(); -#endif /* HAVE_SYSCONF */ - if (maxfd < 0) - maxfd = OPEN_MAX; - - for (fd = lowfd; fd < maxfd; fd++) - (void) close((int) fd); - } -} -#endif /* !HAVE_FCNTL_CLOSEM */ -#endif /* HAVE_CLOSEFROM */ |
