diff options
Diffstat (limited to 'sysdeps/mach/hurd')
| -rw-r--r-- | sysdeps/mach/hurd/pipestream.c | 2 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/readdir_r.c | 112 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/wait4.c | 6 |
3 files changed, 118 insertions, 2 deletions
diff --git a/sysdeps/mach/hurd/pipestream.c b/sysdeps/mach/hurd/pipestream.c new file mode 100644 index 0000000000..548e1e77eb --- /dev/null +++ b/sysdeps/mach/hurd/pipestream.c @@ -0,0 +1,2 @@ +/* Make sure NO_WAITPID is not set; sysdeps/unix/pipestream.c defines it. */ +#include <sysdeps/posix/pipestream.c> diff --git a/sysdeps/mach/hurd/readdir_r.c b/sysdeps/mach/hurd/readdir_r.c new file mode 100644 index 0000000000..0a99da17d2 --- /dev/null +++ b/sysdeps/mach/hurd/readdir_r.c @@ -0,0 +1,112 @@ +/* Copyright (C) 1993, 1994, 1995, 1996 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <errno.h> +#include <limits.h> +#include <stddef.h> +#include <string.h> +#include <dirent.h> +#include <unistd.h> +#include <sys/types.h> +#include <hurd.h> +#include <hurd/fd.h> +#include "dirstream.h" + + +/* Read a directory entry from DIRP. */ +int +__readdir_r (DIR *dirp, struct dirent *entry, struct dirent **result) +{ + struct dirent *dp; + + if (dirp == NULL) + { + errno = EINVAL; + return -1; + } + + __libc_lock_lock (dirp->__lock); + + do + { + if (dirp->__ptr - dirp->__data >= dirp->__size) + { + /* We've emptied out our buffer. Refill it. */ + + char *data = dirp->__data; + int nentries; + error_t err; + + if (err = HURD_FD_PORT_USE (dirp->__fd, + __dir_readdir (port, + &data, &dirp->__size, + dirp->__entry_ptr, + -1, 0, &nentries))) + { + __hurd_fail (err); + dp = NULL; + break; + } + + /* DATA now corresponds to entry index DIRP->__entry_ptr. */ + dirp->__entry_data = dirp->__entry_ptr; + + if (data != dirp->__data) + { + /* The data was passed out of line, so our old buffer is no + longer useful. Deallocate the old buffer and reset our + information for the new buffer. */ + __vm_deallocate (__mach_task_self (), + (vm_address_t) dirp->__data, + dirp->__allocation); + dirp->__data = data; + dirp->__allocation = round_page (dirp->__size); + } + + /* Reset the pointer into the buffer. */ + dirp->__ptr = dirp->__data; + + if (nentries == 0) + { + /* End of file. */ + dp = NULL; + break; + } + + /* We trust the filesystem to return correct data and so we + ignore NENTRIES. */ + } + + dp = (struct dirent *) dirp->__ptr; + dirp->__ptr += dp->d_reclen; + ++dirp->__entry_ptr; + + /* Loop to ignore deleted files. */ + } while (dp->d_fileno == 0); + + if (dp) + { + *entry = *dp; + *result = entry; + } + + __libc_lock_unlock (dirp->__lock); + + return dp ? 0 : -1; +} +weak_alias (__readdir_r, readdir_r) diff --git a/sysdeps/mach/hurd/wait4.c b/sysdeps/mach/hurd/wait4.c index 83eba88e6d..9dfbc550bf 100644 --- a/sysdeps/mach/hurd/wait4.c +++ b/sysdeps/mach/hurd/wait4.c @@ -31,8 +31,10 @@ __wait4 (pid_t pid, __WAIT_STATUS_DEFN stat_loc, error_t err; struct rusage ignored; natural_t sigcode; - - err = __USEPORT (PROC, __proc_wait (port, pid, options, stat_loc, &sigcode, + int dummy; + + err = __USEPORT (PROC, __proc_wait (port, pid, options, + stat_loc ?: &dummy, &sigcode, usage ?: &ignored, &dead)); return err ? (pid_t) __hurd_fail (err) : dead; |