| /* Copyright (C) 1991, 1997 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <errno.h> |
| #include <stddef.h> |
| #include <sys/types.h> |
| |
| /* This will make it not define major, minor, makedev, and S_IF*. */ |
| #undef __USE_BSD |
| #undef __USE_MISC |
| #include <sys/stat.h> |
| |
| #undef stat |
| #undef fstat |
| |
| #undef S_IRWXU |
| #undef S_IRUSR |
| #undef S_IWUSR |
| #undef S_IXUSR |
| #undef S_IRWXG |
| #undef S_IRGRP |
| #undef S_IWGRP |
| #undef S_IXGRP |
| #undef S_IRWXO |
| #undef S_IROTH |
| #undef S_IWOTH |
| #undef S_IXOTH |
| #undef S_ISBLK |
| #undef S_ISCHR |
| #undef S_ISDIR |
| #undef S_ISFIFO |
| #undef S_ISREG |
| #undef S_ISUID |
| #undef S_ISGID |
| #define stat system_stat |
| #define fstat system_fstat |
| #define KERNEL /* Try to avoid misc decls. */ |
| #include "/usr/include/sys/stat.h" |
| #undef KERNEL |
| #undef stat |
| #undef fstat |
| |
| #define member_same(statbufp, sysbufp, member) \ |
| (offsetof(struct __stat, member) == offsetof(struct system_stat, member) && \ |
| sizeof((statbufp)->member) == sizeof((sysbufp)->member)) |
| #define need_stat_mapping(statbufp, sysbufp) \ |
| (!(member_same(statbufp, sysbufp, st_dev) && \ |
| member_same(statbufp, sysbufp, st_ino) && \ |
| member_same(statbufp, sysbufp, st_mode) && \ |
| member_same(statbufp, sysbufp, st_nlink) && \ |
| member_same(statbufp, sysbufp, st_uid) && \ |
| member_same(statbufp, sysbufp, st_gid) && \ |
| member_same(statbufp, sysbufp, st_rdev) && \ |
| member_same(statbufp, sysbufp, st_size) && \ |
| member_same(statbufp, sysbufp, st_atime) && \ |
| member_same(statbufp, sysbufp, st_mtime) && \ |
| member_same(statbufp, sysbufp, st_ctime) && \ |
| member_same(statbufp, sysbufp, st_blksize) && \ |
| member_same(statbufp, sysbufp, st_blocks))) |
| |
| /* Map a system `struct stat' to our `struct stat'. */ |
| #ifdef __GNUC__ |
| inline |
| #endif |
| static int |
| mapstat (sysbuf, statbuf) |
| const struct system_stat *sysbuf; |
| struct __stat *buf; |
| { |
| if (buf == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| if (!need_stat_mapping(buf, sysbuf)) |
| /* Hopefully this will be optimized out. */ |
| *buf = *(struct __stat *) sysbuf; |
| else |
| { |
| buf->st_dev = (dev_t) sysbuf->st_dev; |
| buf->st_ino = (ino_t) sysbuf->st_ino; |
| buf->st_mode = (mode_t) sysbuf->st_mode; |
| buf->st_nlink = (nlink_t) sysbuf->st_nlink; |
| buf->st_uid = (uid_t) sysbuf->st_uid; |
| buf->st_gid = (gid_t) sysbuf->st_gid; |
| buf->st_rdev = (dev_t) sysbuf->st_rdev; |
| buf->st_size = (size_t) sysbuf->st_size; |
| buf->st_atime = (time_t) sysbuf->st_atime; |
| buf->st_mtime = (time_t) sysbuf->st_mtime; |
| buf->st_ctime = (time_t) sysbuf->st_ctime; |
| buf->st_blksize = (size_t) sysbuf->st_blksize; |
| buf->st_blocks = (size_t) sysbuf->st_blocks; |
| } |
| |
| return 0; |
| } |