glibc/sysdeps/unix/sysv/linux/ttyname_r.c
Ulrich Drepper 160698e277 Update.
1998-11-02  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/i386/setgroups.c (setgroups): Remove
	unnecessary test and add cast.

1998-11-02  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* posix/getconf.c: Add initializer SYSCONF for CHARCLASS_NAME_MAX.

	* sysdeps/unix/sysv/linux/ttyname.c (getttyname): Remove unused
	parameter fd.
	* sysdeps/unix/sysv/linux/ttyname_r.c (__ttyname_r): Likewise.

1998-11-02  Mark Kettenis  <kettenis@phys.uva.nl>

	* sysdeps/generic/bits/types.h (__FDS_BITS): New macro to access
	fds_bits member.
	(__FDMASK): Use __fd_mask instead of unsigned long int in cast.

1998-10-31  Richard Henderson  <rth@cygnus.com>

	* math/Makefile (gmp-objs): Add udiv_qrnnd.

	* sysdeps/unix/alpha/sysdep.h (INLINE_SYSCALL*): New.
	(inline_syscall*): New.
	* sysdeps/unix/sysv/linux/alpha/sysdep.h (INLINE_SYSCALL): New.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Kill __syscall* bits.

1998-10-30  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* sunrpc/Versions: Add xdr_uint32_t and xdr_int32_t.
	* sunrpc/pmap_rmt.c: Initialize clnt_stat variable.
	* sunrpc/rpc/auth_des.h: Use uint32_t for time values.
	* sunrpc/rpc/xdr.h: Add INT32 support.

	* nis/nis_call.c: Changes for new 64bit clean NIS+ interface.
	* nis/nis_callback.c: Likewise.
	* nis/nis_creategroup.c: Likewise.
	* nis/nis_defaults.c: Likewise.
	* nis/nis_intern.h: Likewise.
	* nis/nis_lookup.c: Likewise.
	* nis/nis_ping.c: Likewise.
	* nis/nis_print.c: Likewise.
	* nis/nis_table.c: Likewise.
	* nis/nis_util.c: Likewise.
	* nis/nis_xdr.c: Likewise.
	* nis/rpcsvc/nis.h: Likewise.
	* nis/rpcsvc/nis.x: Likewise.
	* nis/rpcsvc/nis_callback.h: Likewise.
	* nis/rpcsvc/nis_object.x: Likewise.
	* nis/rpcsvc/nislib.h: Likewise.

	* nis/rpcsvc/yp.h: Remove casts to (u_long).
	* nis/rpcsvc/yp_prot.h: Likewise.
	* nis/rpcsvc/ypupd.h: Likewise.
	* nis/ypclnt.c: Change %ld to %d in sprintf.

1998-10-29  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* manual/locale.texi (Formatting Numbers): Fix strfmon examples.

1998-10-28  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* sysdeps/generic/bits/select.h (__FD_ZERO): Change '\0' to plain
	0, __fd_mask is usually not a char.

1998-10-30  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/unix/sysv/linux/sigpending.c (sigpending): Allow
	compilation on systems without rt_* syscalls (e.g. on Linux 2.0).
	* sysdeps/unix/sysv/linux/sigprocmask.c (__sigprocmask): Likewise.
	* sysdeps/unix/sysv/linux/sigwaitinfo.c: Likewise.
	* sysdeps/unix/sysv/linux/sigtimedwait.c: Likewise.
	* sysdeps/unix/sysv/linux/sigsuspend.c (__sigsuspend): Likewise
	* sysdeps/unix/sysv/linux/sigqueue.c: Likewise.
	* sysdeps/unix/sysv/linux/aio_sigqueue.c: Likewise.

	* sysdeps/unix/sysv/linux/i386/sigaction.c (__sigaction): Allow
	compiling on systems without rt_sigaction syscall.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c (__sigaction):
	Likewise.

1998-10-30  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* time/strptime.c (HERE_D_FMT): Fix typo.
	Reported by Claus Heine <heine@math1.rwth-aachen.de>, PR libc/842.
1998-11-02 10:07:25 +00:00

197 lines
4.7 KiB
C

/* Copyright (C) 1991, 92, 93, 95, 96, 97, 98 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <limits.h>
#include <stddef.h>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <stdio-common/_itoa.h>
static int getttyname_r __P ((char *buf, size_t buflen,
dev_t mydev, ino_t myino, int save,
int *dostat)) internal_function;
static int
internal_function
getttyname_r (buf, buflen, mydev, myino, save, dostat)
char *buf;
size_t buflen;
dev_t mydev;
ino_t myino;
int save;
int *dostat;
{
struct stat st;
DIR *dirstream;
struct dirent *d;
size_t devlen = strlen (buf);
dirstream = __opendir (buf);
if (dirstream == NULL)
{
*dostat = -1;
return errno;
}
while ((d = __readdir (dirstream)) != NULL)
if (((ino_t) d->d_fileno == myino || *dostat)
&& strcmp (d->d_name, "stdin")
&& strcmp (d->d_name, "stdout")
&& strcmp (d->d_name, "stderr"))
{
char *cp;
size_t needed = _D_EXACT_NAMLEN (d) + 1;
if (needed > buflen)
{
*dostat = -1;
(void) __closedir (dirstream);
__set_errno (ERANGE);
return ERANGE;
}
cp = __stpncpy (buf + devlen, d->d_name, needed);
cp[0] = '\0';
if (stat (buf, &st) == 0
#ifdef _STATBUF_ST_RDEV
&& S_ISCHR (st.st_mode) && st.st_rdev == mydev
#else
&& (ino_t) d->d_fileno == myino && st.st_dev == mydev
#endif
)
{
(void) __closedir (dirstream);
__set_errno (save);
return 0;
}
}
(void) __closedir (dirstream);
__set_errno (save);
/* It is not clear what to return in this case. `isatty' says FD
refers to a TTY but no entry in /dev has this inode. */
return ENOTTY;
}
/* Store at most BUFLEN character of the pathname of the terminal FD is
open on in BUF. Return 0 on success, otherwise an error number. */
int
__ttyname_r (fd, buf, buflen)
int fd;
char *buf;
size_t buflen;
{
char procname[30];
struct stat st, st1;
int dostat = 0;
int save = errno;
int ret;
/* Test for the absolute minimal size. This makes life easier inside
the loop. */
if (!buf)
{
__set_errno (EINVAL);
return EINVAL;
}
if (buflen < sizeof ("/dev/pts/"))
{
__set_errno (ERANGE);
return ERANGE;
}
if (!__isatty (fd))
{
__set_errno (ENOTTY);
return ENOTTY;
}
/* We try using the /proc filesystem. */
*_fitoa_word (fd, __stpcpy (procname, "/proc/self/fd/"), 10, 0) = '\0';
ret = __readlink (procname, buf, buflen - 1);
if (ret != -1 && buf[0] != '[')
return 0;
if (ret == -1 && errno == ENAMETOOLONG)
{
__set_errno (ERANGE);
return ERANGE;
}
if (fstat (fd, &st) < 0)
return errno;
/* Prepare the result buffer. */
memcpy (buf, "/dev/pts/", sizeof ("/dev/pts/"));
buflen -= sizeof ("/dev/pts/") - 1;
if (stat (buf, &st1) == 0 && S_ISDIR (st1.st_mode))
{
#ifdef _STATBUF_ST_RDEV
ret = getttyname_r (buf, buflen, st.st_rdev, st.st_ino, save,
&dostat);
#else
ret = getttyname_r (buf, buflen, st.st_dev, st.st_ino, save,
&dostat);
#endif
}
else
{
__set_errno (save);
ret = ENOENT;
}
if (ret && dostat != -1)
{
buf[sizeof ("/dev/") - 1] = '\0';
buflen += sizeof ("pts/") - 1;
#ifdef _STATBUF_ST_RDEV
ret = getttyname_r (buf, buflen, st.st_rdev, st.st_ino, save,
&dostat);
#else
ret = getttyname_r (buf, buflen, st.st_dev, st.st_ino, save,
&dostat);
#endif
}
if (ret && dostat != -1)
{
buf[sizeof ("/dev/") - 1] = '\0';
dostat = 1;
#ifdef _STATBUF_ST_RDEV
ret = getttyname_r (buf, buflen, st.st_rdev, st.st_ino,
save, &dostat);
#else
ret = getttyname_r (buf, buflen, st.st_dev, st.st_ino,
save, &dostat);
#endif
}
return ret;
}
weak_alias (__ttyname_r, ttyname_r)