glibc/sysdeps/unix/sysv/linux/ptrace.c
Roland McGrath 97aa195cf7 * io/Makefile (routines): Add mknod, xstat fxstat lxstat xmknod.
* sysdeps/unix/sysv/linux/ptrace.c: Use ... decl, and stdarg.h to
	get args.

	* posix/glob.c (_GNU_SOURCE): Define if undefined, so glob.h
	defines GNU extensions.
	* posix/fnmatch.c: Likewise.
1996-01-19 10:00:23 +00:00

58 lines
1.5 KiB
C

/* Copyright (C) 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <sys/types.h>
#include <sys/ptrace.h>
#include <stdarg.h>
extern int __syscall_ptrace (int, pid_t, void *, void *);
int
ptrace (enum __ptrace_request request, ...)
{
int res, ret;
va_list ap;
pid_t pid;
void *addr, *data;
va_start (ap, request);
pid = va_arg (ap, pid_t);
addr = va_arg (ap, void *);
data = va_arg (ap, void *);
va_end (ap);
if (request > 0 && request < 4)
data = &ret;
res = __syscall_ptrace (request, pid, addr, data);
if (res >= 0)
{
if (request > 0 && request < 4)
{
errno = 0;
return ret;
}
return res;
}
errno = -res;
return -1;
}