1/* 2 Unix SMB/CIFS implementation. 3 server specific string routines 4 Copyright (C) Andrew Tridgell 2001 5 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20*/ 21 22#include "includes.h" 23extern int max_send; 24 25/* Make sure we can't write a string past the end of the buffer */ 26 27size_t srvstr_push_fn(const char *function, unsigned int line, 28 const char *base_ptr, void *dest, 29 const char *src, int dest_len, int flags) 30{ 31 size_t buf_used = PTR_DIFF(dest, base_ptr); 32 if (dest_len == -1) { 33 if (((ptrdiff_t)dest < (ptrdiff_t)base_ptr) || (buf_used > (size_t)max_send)) { 34#if 0 35 DEBUG(0, ("Pushing string of 'unlimited' length into non-SMB buffer!\n")); 36#endif 37 return push_string_fn(function, line, base_ptr, dest, src, -1, flags); 38 } 39 return push_string_fn(function, line, base_ptr, dest, src, max_send - buf_used, flags); 40 } 41 42 /* 'normal' push into size-specified buffer */ 43 return push_string_fn(function, line, base_ptr, dest, src, dest_len, flags); 44} 45