mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
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db29debc13
suggested in #119404. Prior to this commit, if the current traced process attempted to execve a setuid executable, an error was always returned. The revised behaviour is: If the current (traced) process attempts to execve a setuid executable: * If --trace-children=yes is not in effect, the execve is allowed. * If --trace-children=yes is in effect, the execve is disallowed (as at present), but an error message is printed (unless in XML mode), so at least the execve does not fail silently any more. As per discussion on #119404 we could probably do a lot better, but these changes are at least simple, useful and uncontroversial. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7175
98 lines
3.9 KiB
C
98 lines
3.9 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- File/socket-related libc stuff. pub_core_libcfile.h ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, a dynamic binary instrumentation
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framework.
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Copyright (C) 2000-2007 Julian Seward
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jseward@acm.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#ifndef __PUB_CORE_LIBCFILE_H
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#define __PUB_CORE_LIBCFILE_H
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//--------------------------------------------------------------------
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// PURPOSE: This module contains all the libc code that relates to
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// files and sockets: opening, reading, writing, etc.
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// To use, you must first include: pub_core_vki.h
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//--------------------------------------------------------------------
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#include "pub_tool_libcfile.h"
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/* Move an fd into the Valgrind-safe range */
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extern Int VG_(safe_fd) ( Int oldfd );
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extern Int VG_(fcntl) ( Int fd, Int cmd, Int arg );
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/* Convert an fd into a filename */
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extern Bool VG_(resolve_filename) ( Int fd, HChar* buf, Int n_buf );
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/* Return the size of a file */
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extern Int VG_(fsize) ( Int fd );
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/* Is the file a directory? */
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extern Bool VG_(is_dir) ( HChar* f );
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/* Default destination port to be used in logging over a network, if
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none specified. */
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#define VG_CLO_DEFAULT_LOGPORT 1500
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extern UInt VG_(htonl) ( UInt x );
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extern UInt VG_(ntohl) ( UInt x );
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extern UShort VG_(htons) ( UShort x );
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extern UShort VG_(ntohs) ( UShort x );
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extern Int VG_(write_socket)( Int sd, void *msg, Int count );
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extern Int VG_(connect_via_socket)( UChar* str );
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extern Int VG_(getsockname) ( Int sd, struct vki_sockaddr *name, Int *namelen );
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extern Int VG_(getpeername) ( Int sd, struct vki_sockaddr *name, Int *namelen );
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extern Int VG_(getsockopt) ( Int sd, Int level, Int optname, void *optval,
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Int *optlen );
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extern Int VG_(access) ( HChar* path, Bool irusr, Bool iwusr, Bool ixusr );
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/* Is the file executable? Returns: 0 = success, non-0 is failure */
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extern Int VG_(check_executable)(/*OUT*/Bool* is_setuid,
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HChar* f, Bool allow_setuid);
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extern SysRes VG_(pread) ( Int fd, void* buf, Int count, Int offset );
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/* Create and open (-rw------) a tmp file name incorporating said arg.
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Returns -1 on failure, else the fd of the file. If fullname is
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non-NULL, the file's name is written into it. The number of bytes
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written is guaranteed not to exceed 64+strlen(part_of_name). */
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extern Int VG_(mkstemp) ( HChar* part_of_name, /*OUT*/HChar* fullname );
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/* Record the process' working directory at startup. Is intended to
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be called exactly once, at startup, before the working directory
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changes. Return True for success, False for failure, so that the
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caller can bomb out suitably without creating module cycles if
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there is a problem. The saved value can later be acquired by
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calling VG_(get_startup_wd) (in pub_tool_libcfile.h). */
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extern Bool VG_(record_startup_wd) ( void );
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#endif // __PUB_CORE_LIBCFILE_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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