diff options
Diffstat (limited to 'libiberty/fdmatch.c')
-rwxr-xr-x | libiberty/fdmatch.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/libiberty/fdmatch.c b/libiberty/fdmatch.c deleted file mode 100755 index 7af039f..0000000 --- a/libiberty/fdmatch.c +++ /dev/null @@ -1,73 +0,0 @@ -/* Compare two open file descriptors to see if they refer to the same file. - Copyright (C) 1991 Free Software Foundation, Inc. - -This file is part of the libiberty library. -Libiberty is free software; you can redistribute it and/or -modify it under the terms of the GNU Library General Public -License as published by the Free Software Foundation; either -version 2 of the License, or (at your option) any later version. - -Libiberty 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 -Library General Public License for more details. - -You should have received a copy of the GNU Library General Public -License along with libiberty; see the file COPYING.LIB. If -not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - - -/* - -NAME - - fdmatch -- see if two file descriptors refer to same file - -SYNOPSIS - - int fdmatch (int fd1, int fd2) - -DESCRIPTION - - Check to see if two open file descriptors refer to the same file. - This is useful, for example, when we have an open file descriptor - for an unnamed file, and the name of a file that we believe to - correspond to that fd. This can happen when we are exec'd with - an already open file (stdout for example) or from the SVR4 /proc - calls that return open file descriptors for mapped address spaces. - All we have to do is open the file by name and check the two file - descriptors for a match, which is done by comparing major&minor - device numbers and inode numbers. - -BUGS - - (FIXME: does this work for networks?) - It works for NFS, which assigns a device number to each mount. - -*/ - -#include "ansidecl.h" -#include "libiberty.h" -#include <sys/types.h> -#include <sys/stat.h> - -int fdmatch (fd1, fd2) - int fd1; - int fd2; -{ - struct stat sbuf1; - struct stat sbuf2; - - if ((fstat (fd1, &sbuf1) == 0) && - (fstat (fd2, &sbuf2) == 0) && - (sbuf1.st_dev == sbuf2.st_dev) && - (sbuf1.st_ino == sbuf2.st_ino)) - { - return (1); - } - else - { - return (0); - } -} |