From 0d3e258fd102c7b99ee5a3fffcdd10e4cfaf2bc6 Mon Sep 17 00:00:00 2001 From: Martin Pool Date: Tue, 15 Jan 2002 02:11:55 +0000 Subject: Split pstring definitions into their own header. (This used to be commit 04e3082f7d45c1b304adff5a46106136cff0e09e) --- source3/include/pstring.h | 71 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 source3/include/pstring.h (limited to 'source3/include/pstring.h') diff --git a/source3/include/pstring.h b/source3/include/pstring.h new file mode 100644 index 0000000000..97ad5c9397 --- /dev/null +++ b/source3/include/pstring.h @@ -0,0 +1,71 @@ +/* + samba -- Unix SMB/Netbios implementation. + Safe standardized string types + + Copyright (C) Andrew Tridgell 1992-2000 + Copyright (C) John H Terpstra 1996-2000 + Copyright (C) Luke Kenneth Casson Leighton 1996-2000 + Copyright (C) Paul Ashton 1998-2000 + Copyright (C) Martin Pool 2002 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#ifndef _PSTRING + +#define PSTRING_LEN 1024 +#define FSTRING_LEN 256 + +#ifdef PSTRING_SANCTIFY + +/* If you define this, pstring and fstring become distinguished types, + * so that it's harder to accidentally overflow them by for example + * passing an fstring on the lhs of pstrcpy. + * + * To pass them to non-pstring-aware functions, use PSTR and check + * that the function takes a const. They should almost never be + * modified except by special calls. In those unusual cases, use + * PSTR_MUTABLE. + * + * This is off by default so as not to produce too many warnings. As + * the code is vetted it can become the default. */ + +typedef union { char pstring_contents[PSTRING_LEN]; } pstring[1]; +typedef union { char fstring_contents[FSTRING_LEN]; } fstring[1]; + +# define PSTR(p) ((const char *) ((p)->pstring_contents)) +# define FSTR(f) ((const char *) ((f)->fstring_contents)) + +/* Please use the const functions instead if possible. */ +# define PSTR_MUTABLE(p) (((p)->pstring_contents)) +# define FSTR_MUTABLE(f) (((f)->fstring_contents)) + +#else /* ndef PSTRING_SANCTIFY */ + +/* Old interface. */ + +typedef char pstring[PSTRING_LEN]; +typedef char fstring[FSTRING_LEN]; + +#define PSTR(p) ((const char *) p) +#define FSTR(f) ((const char *) f) +#define PSTR_MUTABLE(p) (p) +#define FSTR_MUTABLE(f) (f) + +#endif /* ndef PSTRING_SANCTIFY */ + +#define _PSTRING + +#endif /* ndef _PSTRING */ -- cgit