mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-05 21:00:05 +00:00
6d52618b15
Thu Dec 19 23:28:33 1996 Ulrich Drepper <drepper@cygnus.com> * resolv/resolv.h: Update from BIND 4.9.5-P1. * resolv/res_comp.c: Likewise. * resolv/res_debug.c: Likewise. * resolv/Banner: Update version number. Thu Dec 19 20:58:53 1996 Ulrich Drepper <drepper@cygnus.com> * elf/dlfcn.h: Add extern "C" wrapper. * io/utime.h: Don't define NULL since this isn't allowed in POSIX. * io/sys/stat.h: Declare `lstat' only if __USE_BSD || __USE_XOPEN_EXTENDED. * locale/locale.h: Define NULL. * math/math.c: Don't include <errno.h> to define math errors. * stdlib/stdlib.h: Likewise. * posix/unistd.h: Don't declare environ. * posix/sys/utsname.h (struct utsname): Declare member domainname as __domainname is !__USE_GNU. * signal/signal.h: Declare size_t only if __USE_BSD || __USE_XOPEN_EXTENDED. * stdio/stdio.h: Don't declare cuserid when __USE_POSIX, but instead when __USE_XOPEN. * string/string.h: Define strndup only if __USE_GNU. * sysdeps/unix/sysv/linux/clock.c: New file. * sysdeps/unix/sysv/linux/timebits.h: Define CLOCKS_PER_SEC as 1000000 per X/Open standard. * features.h: Add code to recognize _POSIX_C_SOURCE value 199309. Define __USE_POSIX199309. * posix/unistd.h: Declare fdatasync only if __USE_POSIX199309. * time/time.c: Declare nanosleep only if __USE_POSIX199309. Patches by Rüdiger Helsch <rh@unifix.de>. * locale/locale.h: Add declaration of newlocale and freelocale. * new-malloc/Makefile (distibute): Add mtrace.awk. (dist-routines): Add mcheck and mtrace. (install-lib, non-lib.a): Define as libmcheck.a. * new-malloc/malloc.h: Add declaration of __malloc_initialized. * new-malloc/mcheck.c: New file. * new-malloc/mcheck.h: New file. * new-malloc/mtrace.c: New file. * new-malloc/mtrace.awk: New file. * posix/unistd.h: Correct prototype for usleep. * sysdeps/unix/bsd/usleep.c: De-ANSI-declfy. Correct return type. * sysdeps/unix/sysv/linux/usleep.c: Real implementation based on nanosleep. * signal/signal.h: Change protoype of __sigpause to take two arguments. Remove prototype for sigpause. Add two different macros named sigpause selected when __USE_BSD or __USE_XOPEN are defined. This is necessary since the old BSD definition of theis function collides with the X/Open definition. * sysdeps/posix/sigpause.c: Change function definition to also fit X/Open definition. * sysdeps/libm-i387/e_exp.S: Make sure stack is empty when the function is left. * sysdeps/libm-i387/e_expl.S: Likewise. Patch by HJ Lu. 1996-12-17 Paul Eggert <eggert@twinsun.com> * many, many files: Spelling corrections. * catgets/catgetsinfo.h (mmapped): Renamed from mmaped (in struct catalog_info.status). * mach/err_kern.sub (err_codes_unix), string/stratcliff.c (main): Fix spelling in message. * po/libc.pot: Fix spelling in message for `zic'; this anticipates a fix in the tzcode distribution. Wed Dec 18 15:48:02 1996 Ulrich Drepper <drepper@cygnus.com> * time/strftime.c: Implement ^ flag to cause output be converted to use upper case characters. * time/zic.c: Update from ADO tzcode1996n. Wed Dec 18 14:29:24 1996 Erik Naggum <erik@naggum.no> * time/strftime.c (add): Don't change global `i' until all is over. Define NULL is not already defined. Tue Dec 17 09:49:03 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * libio/iovsprintf.c (_IO_vsprintf): Change `&sf' to `&sf._sbf._f' to avoid the need for a cast. * libio/iovsscanf.c (_IO_vsscanf): Likewise. * sunrpc/rpc/xdr.h: Add prototype for xdr_free.
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
/* Reentrant function to return the current login name. Unix version.
|
|
Copyright (C) 1991, 1992, 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., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <limits.h>
|
|
#include <fcntl.h>
|
|
|
|
#include <utmp.h>
|
|
|
|
/* Return at most NAME_LEN characters of the login name of the user in NAME.
|
|
If it cannot be determined or some other error occurred, return the error
|
|
code. Otherwise return 0. */
|
|
|
|
int
|
|
getlogin_r (name, name_len)
|
|
char *name;
|
|
size_t name_len;
|
|
{
|
|
char tty_pathname[2 + 2 * NAME_MAX];
|
|
char *real_tty_path = tty_pathname;
|
|
int result = 0;
|
|
struct utmp *ut, line, buffer;
|
|
|
|
{
|
|
int err;
|
|
int d = __open ("/dev/tty", 0);
|
|
if (d < 0)
|
|
return errno;
|
|
|
|
result = ttyname_r (d, real_tty_path, sizeof (tty_pathname));
|
|
err = errno;
|
|
(void) close (d);
|
|
|
|
if (result < 0)
|
|
{
|
|
__set_errno (err);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
real_tty_path += 5; /* Remove "/dev/". */
|
|
|
|
__setutent ();
|
|
strncpy (line.ut_line, real_tty_path, sizeof line.ut_line);
|
|
if (__getutline_r (&line, &buffer, &ut) < 0)
|
|
{
|
|
if (errno == ESRCH)
|
|
/* The caller expects ENOENT if nothing is found. */
|
|
result = ENOENT;
|
|
else
|
|
result = errno;
|
|
}
|
|
else
|
|
{
|
|
size_t needed = strlen (ut->ut_line) + 1;
|
|
|
|
if (needed < name_len)
|
|
{
|
|
__set_errno (ERANGE);
|
|
result = ERANGE;
|
|
}
|
|
else
|
|
{
|
|
memcpy (name, ut->ut_line, needed);
|
|
result = 0;
|
|
}
|
|
}
|
|
__endutent ();
|
|
|
|
return result;
|
|
}
|