Commit Graph

32 Commits

Author SHA1 Message Date
David Schultz
dd5185d15f Namespace: memccpy() and memchr() are XSI, and memrchr() is a BSD extension. 2009-03-14 19:03:34 +00:00
David Schultz
69099ba2ec - Add getdelim(), getline(), stpncpy(), strnlen(), wcsnlen(),
wcscasecmp(), and wcsncasecmp().
- Make some previously non-standard extensions visible
  if POSIX_VISIBLE >= 200809.
- Use restrict qualifiers in stpcpy().
- Declare off_t and size_t in stdio.h.
- Bump __FreeBSD_version in case the new symbols (particularly
  getline()) cause issues with ports.

Reviewed by:	standards@
2009-02-28 06:00:58 +00:00
David Schultz
e00a6d21eb Add restrict qualifiers to the parameters to strlcpy() and strlcat().
The annotation mainly just serves as a hint that they're not intended
for use with overlapping strings.
2009-02-28 05:15:02 +00:00
David Schultz
dce7ffd6df Mark memmem() __pure. 2009-02-28 05:08:35 +00:00
David Schultz
544048ecef Add a function attribute called `__malloc_like', which informs gcc
that the annotated function returns a pointer that doesn't alias any
extant pointer. This results in a 50%+ speedup in microbenchmarks such
as the following:

    char *cp = malloc(1), *buf = malloc(BUF);
    for (i = 0; i < BUF; i++) buf[i] = *cp;

In real programs, your mileage will vary. Note that gcc already
performs this optimization automatically for any function called
`malloc', `calloc', `strdup', or `strndup' unless -fno-builtins is
used.
2009-01-31 18:27:02 +00:00
Konstantin Belousov
20e76cb365 Add strndup(3) prototype to string.h.
This change was erronously ommitted from the r185690, and attempt
to simply add the prototype to string.h has revealed that several
contributed programs defined local prototypes for strndup(), controlled
by autoconfed config.h. So, manually change #undef HAVE_STRNDUP to
#define HAVE_STRNDUP 1. Next import of the corresponding program would
regenerate config.h, overriding the changes in this commit.

No objections from: kan
2008-12-08 21:04:24 +00:00
Xin LI
82e45205c8 Add memrchr(3).
Obtained from:	OpenBSD
2008-04-10 00:12:44 +00:00
Ruslan Ermilov
52fbcc15a0 Revert last revision, strmode() should be moved to <unistd.h> to be
properly fixed.
2005-11-24 08:30:44 +00:00
Ruslan Ermilov
fee45c0c38 Fix prototype of strmode() to match the code and documentation. 2005-11-24 06:59:35 +00:00
Andre Oppermann
da506dcad2 Appropriate namespace protection for memmem(3).
Submitted by:	wollman
MFC after:	3 days
2005-08-25 19:46:38 +00:00
Andre Oppermann
6050c8fe05 Add the function memmem(3) as found in glibc and others.
It is the binary equivalent to strstr(3).

 void *memmem(const void *big, size_t big_len,
	const void *little, size_t little_len);

Submitted by:	Pascal Gloor <pascal.gloor at spale.com>
MFC after:	3 days
2005-08-25 18:26:58 +00:00
Tom Rhodes
2f5cde3c64 According to the information on:
http://www.opengroup.org/onlinepubs/009695399/functions/swab.html
the prototype for swab() should be in <unistd.h> and not in <string.h>.
Move it, and update to match SUS.  Leave the prototype in string.h for
now, for backwards compat.

PR:		74751
Submitted by:	Craig Rodrigues <rodrigc@crodrigues.org>
Discussed with:	das
2004-12-10 15:24:40 +00:00
Tim J. Robbins
779f8b0d2a Mark functions pure where applicable. A notable exclusion is strcoll(),
which is not strictly pure because it calls malloc()/free() in some cases.
2004-07-23 02:20:05 +00:00
Marcel Moolenaar
12eb46c8bb Change the definition of NULL on ia64 (for LP64 compilations) from
an int constant to a long constant. This change improves consistency
in the following two ways:
1. The first 8 arguments are always passed in registers on ia64, which
   by virtue of the generated code implicitly widens ints to longs and
   allows the use of an 32-bit integral type for 64-bit arguments.
   Subsequent arguments are passed onto the memory stack, which does
   not exhibit the same behaviour and consequently do not allow this.
   In practice this means that variadic functions taking pointers
   and given NULL (without cast) work as long as the NULL is passed
   in one of the first 8 arguments. A SIGSEGV is more likely the
   result if such would be done for stack-based arguments. This is
   due to the fact that the upper 4 bytes remain undefined.
2. All 64-bit platforms that FreeBSD supports, with the obvious
   exception of ia64, allow 32-bit integral types (specifically NULL)
   when 64-bit pointers are expected in variadic functions by way of
   how the compiler generates code. As such, code that works correctly
   (whether rightfully so or not) on any platform other than ia64, may
   fail on ia64.

To more easily allow tweaking of the definition of NULL, this commit
removes the 12 definitions in the various headers and puts it in a
new header that can be included whenever NULL is to be made visible.

This commit fixes GNOME, emacs, xemacs and a whole bunch of ports
that I don't particularly care about at this time...
2003-12-07 21:10:06 +00:00
Mike Barcroft
32484af1c4 Correct visibility conditionals for memccpy(), strdup(), and
strtok_r().  Merge conditional prototypes into the regular block.
2002-10-14 20:38:40 +00:00
David E. O'Brien
103f8a93cb Make stpcpy() only visiable w/in __BSD_VISIBLE. 2002-10-05 22:07:28 +00:00
David E. O'Brien
1d6bd7d717 Add stpcpy(3). 2002-10-03 19:51:04 +00:00
Mike Barcroft
abbd890233 o Merge <machine/ansi.h> and <machine/types.h> into a new header
called <machine/_types.h>.
o <machine/ansi.h> will continue to live so it can define MD clock
  macros, which are only MD because of gratuitous differences between
  architectures.
o Change all headers to make use of this.  This mainly involves
  changing:
    #ifdef _BSD_FOO_T_
    typedef	_BSD_FOO_T_	foo_t;
    #undef _BSD_FOO_T_
    #endif
  to:
    #ifndef _FOO_T_DECLARED
    typedef	__foo_t	foo_t;
    #define	_FOO_T_DECLARED
    #endif

Concept by:	bde
Reviewed by:	jake, obrien
2002-08-21 16:20:02 +00:00
Mike Barcroft
6e07075911 Add support for X/Open.
PR: 37078
2002-04-15 03:21:21 +00:00
Mike Barcroft
61b60edfd3 o Move some function prototypes from <string.h> to the newly rewritten
<strings.h>, based on POSIX.1-2001's requirements.
o Add 'restrict' qualifier (spelled '__restrict') to functions in
  <string.h>, as per C99 and POSIX.1-2001.
o Properly expose new POSIX.1-2001 functions in <string.h>.
2002-04-04 05:41:57 +00:00
Warner Losh
bb28f3c29b Breath deep and take __P out of the system include files.
# This appears to not break X11, but I'm having problems compiling the
# glide part of the server with or without this patch, so I can't tell
# for sure.
2002-03-23 17:24:55 +00:00
Bruce Evans
d23c1cd5d7 Fixed namespace pollution in previous commit. The C99 function
sterror_r() must not be declared in the C90/POSIX.1-1990 section.
Put it in the nonstandard section for now.
2001-11-28 19:02:01 +00:00
Wes Peters
9c324dc0c0 Add strerror_r function per Posix prototype.
Reviewed by:	Mike Barcroft <mike@FreeBSD.org>
MFC after:	2 weeks
2001-11-27 07:39:46 +00:00
Bruce Evans
4546f9029c Fixed some style bugs:
- rev.1.6: corrupt tab before strlcpy.
- rev.1.7: "From: " in vendor id.
- rev.1.8: unsorted prototype for strccasestr.
2001-10-10 07:34:47 +00:00
Andrey A. Chernov
a7ad1caca8 Implement strcasestr() which many others (f.e. Linux) already have 2001-10-10 02:19:09 +00:00
Mike Barcroft
41036d782d Add a new libc function, strnstr(3), which allows one to limit the
number of characters that are searched.  This is especially useful
with file operations and non-NUL terminated strings.

Silence from:	-audit, -hackers
MFC after:	5 days
2001-10-09 01:29:56 +00:00
Warner Losh
c0344bf061 Add prototypes for strl* functions
Forgotten by: imp
Reported by: bde
1999-08-16 06:53:13 +00:00
Peter Wemm
78121e79aa Add a strsignal(3) (like strerror(3)) for libc compatability with other
systems. NetBSD, Linux, SVR4 etc all have it.
1999-05-18 04:48:58 +00:00
John Polstra
5d00b6ccba Add a prototype for strtok_r(). 1999-01-20 21:21:26 +00:00
Warner Losh
2ad334cde8 string.h defines nonstandard routines when _POSIX_SOURCE is
defined.  It has been fixed to not do that.

Submitted by:	Jake Hamby <jehamby@lightside.com>
Closes PR:	1954
1996-12-17 19:35:43 +00:00
Rodney W. Grimes
4399be3cbd Remove trailing whitespace. 1995-05-30 05:05:38 +00:00
Rodney W. Grimes
59deaec541 BSD 4.4 Lite Include Sources 1994-05-24 09:57:34 +00:00