mirror of
https://github.com/tmux/tmux.git
synced 2024-12-12 17:38:48 +00:00
Compat for closefrom().
This commit is contained in:
Nicholas Marriott
parent
8f84217023
commit
2287ec7b3e
10
compat.h
10
compat.h
@ -1,4 +1,4 @@
|
||||
/* $Id: compat.h,v 1.26 2010-09-07 19:32:58 nicm Exp $ */
|
||||
/* $Id: compat.h,v 1.27 2010-10-27 20:21:00 nicm Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
|
||||
@ -163,6 +163,14 @@ typedef uint64_t u_int64_t;
|
||||
#define bzero(buf, len) memset(buf, 0, len);
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_CLOSEFROM
|
||||
/* closefrom.c */
|
||||
#define HAVE_FCNTL_H
|
||||
#define HAVE_DIRENT_H
|
||||
#define HAVE_SYSCONF
|
||||
void closefrom(int);
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_STRCASESTR
|
||||
/* strcasestr.c */
|
||||
char *strcasestr(const char *, const char *);
|
||||
|
||||
111
compat/closefrom.c
Normal file
111
compat/closefrom.c
Normal file
@ -0,0 +1,111 @@
|
||||
/* $Id: closefrom.c,v 1.1 2010-10-27 20:21:01 nicm Exp $ */
|
||||
|
||||
/*
|
||||
* 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 "tmux.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 */
|
||||
25
configure
vendored
25
configure
vendored
@ -1,5 +1,5 @@
|
||||
#!/bin/sh
|
||||
# $Id: configure,v 1.54 2010-09-07 19:32:58 nicm Exp $
|
||||
# $Id: configure,v 1.55 2010-10-27 20:21:00 nicm Exp $
|
||||
#
|
||||
# Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
|
||||
#
|
||||
@ -33,14 +33,18 @@ cat <<EOF >>$CONFIG_H
|
||||
#undef HAVE_BROKEN_KQUEUE
|
||||
#undef HAVE_BROKEN_POLL
|
||||
#undef HAVE_BZERO
|
||||
#undef HAVE_CLOSEFROM
|
||||
#undef HAVE_CRYPT_H
|
||||
#undef HAVE_DAEMON
|
||||
#undef HAVE_DIRFD
|
||||
#undef HAVE_FCNTL_CLOSEM
|
||||
#undef HAVE_FGETLN
|
||||
#undef HAVE_FORKPTY
|
||||
#undef HAVE_GETOPT
|
||||
#undef HAVE_IMSG
|
||||
#undef HAVE_LIBUTIL_H
|
||||
#undef HAVE_PATHS_H
|
||||
#undef HAVE_PROC_PID
|
||||
#undef HAVE_PROGNAME
|
||||
#undef HAVE_PTY_H
|
||||
#undef HAVE_QUEUE_H
|
||||
@ -64,6 +68,7 @@ case $TMUX_PLATFORM in
|
||||
#define HAVE_ASPRINTF
|
||||
#define HAVE_BITSTRING_H
|
||||
#define HAVE_BZERO
|
||||
#define HAVE_CLOSEFROM
|
||||
#define HAVE_DAEMON
|
||||
#define HAVE_FGETLN
|
||||
#define HAVE_FORKPTY
|
||||
@ -96,8 +101,10 @@ EOF
|
||||
#define HAVE_ASPRINTF
|
||||
#define HAVE_BZERO
|
||||
#define HAVE_DAEMON
|
||||
#define HAVE_DIRFD
|
||||
#define HAVE_FORKPTY
|
||||
#define HAVE_PATHS_H
|
||||
#define HAVE_PROC_PID
|
||||
#define HAVE_PROGNAME
|
||||
#define HAVE_PTY_H
|
||||
#define HAVE_SETENV
|
||||
@ -110,11 +117,12 @@ EOF
|
||||
CFLAGS+= -std=c99 -D_GNU_SOURCE -D_POSIX_SOURCE
|
||||
LIBS+= -lncurses -lcrypt -lutil -levent -lrt
|
||||
SRCS+= osdep-linux.c \
|
||||
compat/closefrom.c \
|
||||
compat/fgetln.c \
|
||||
compat/strlcat.c \
|
||||
compat/strlcpy.c \
|
||||
compat/strtonum.c \
|
||||
compat/getopt.c \
|
||||
compat/getopt.c \
|
||||
compat/vis.c \
|
||||
compat/unvis.c \
|
||||
compat/imsg-buffer.c \
|
||||
@ -133,6 +141,7 @@ EOF
|
||||
LIBS+= -lcurses -levent
|
||||
SRCS+= osdep-unknown.c \
|
||||
compat/asprintf.c \
|
||||
compat/closefrom.c \
|
||||
compat/daemon.c \
|
||||
compat/forkpty-aix.c \
|
||||
compat/strcasestr.c \
|
||||
@ -151,6 +160,7 @@ EOF
|
||||
# ------------------------------------------------------------------------------
|
||||
SunOS)
|
||||
cat <<EOF >>$CONFIG_H
|
||||
#define HAVE_CLOSEFROM
|
||||
#define HAVE_CRYPT_H
|
||||
#define HAVE_STRLCAT
|
||||
#define HAVE_STRLCPY
|
||||
@ -183,13 +193,15 @@ EOF
|
||||
#define HAVE_BROKEN_POLL
|
||||
#define HAVE_BZERO
|
||||
#define HAVE_DAEMON
|
||||
#define HAVE_DIRFD
|
||||
#define HAVE_FGETLN
|
||||
#define HAVE_FORKPTY
|
||||
#define HAVE_GETOPT
|
||||
#define HAVE_PATHS_H
|
||||
#define HAVE_PROC_PID
|
||||
#define HAVE_PROGNAME
|
||||
#define HAVE_STDINT_H
|
||||
#define HAVE_SETENV
|
||||
#define HAVE_STDINT_H
|
||||
#define HAVE_STRCASESTR
|
||||
#define HAVE_STRLCAT
|
||||
#define HAVE_STRLCPY
|
||||
@ -202,6 +214,7 @@ CPPFLAGS+= -I/opt/local/include
|
||||
LDFLAGS+= -L/opt/local/lib
|
||||
LIBS+= -lcurses -levent
|
||||
SRCS+= osdep-darwin.c \
|
||||
compat/closefrom.c \
|
||||
compat/strtonum.c \
|
||||
compat/vis.c \
|
||||
compat/unvis.c \
|
||||
@ -215,6 +228,7 @@ EOF
|
||||
#define HAVE_ASPRINTF
|
||||
#define HAVE_BROKEN_KQUEUE
|
||||
#define HAVE_BZERO
|
||||
#define HAVE_CLOSEFROM
|
||||
#define HAVE_DAEMON
|
||||
#define HAVE_FGETLN
|
||||
#define HAVE_FORKPTY
|
||||
@ -228,8 +242,8 @@ EOF
|
||||
#define HAVE_STRCASESTR
|
||||
#define HAVE_STRLCAT
|
||||
#define HAVE_STRLCPY
|
||||
#define HAVE_STRTONUM
|
||||
#define HAVE_STRSEP
|
||||
#define HAVE_STRTONUM
|
||||
#define HAVE_U_INT
|
||||
EOF
|
||||
cat <<EOF >>$CONFIG_MK
|
||||
@ -246,14 +260,15 @@ EOF
|
||||
cat <<EOF >>$CONFIG_H
|
||||
#define HAVE_ASPRINTF
|
||||
#define HAVE_BZERO
|
||||
#define HAVE_CLOSEFROM
|
||||
#define HAVE_DAEMON
|
||||
#define HAVE_FGETLN
|
||||
#define HAVE_FORKPTY
|
||||
#define HAVE_GETOPT
|
||||
#define HAVE_PATHS_H
|
||||
#define HAVE_PROGNAME
|
||||
#define HAVE_SETPROCTITLE
|
||||
#define HAVE_SETENV
|
||||
#define HAVE_SETPROCTITLE
|
||||
#define HAVE_STDINT_H
|
||||
#define HAVE_STRCASESTR
|
||||
#define HAVE_STRLCAT
|
||||
|
||||
Loading…
Reference in New Issue
Block a user