mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
c47a0d494c
for libarchive error messages. Mostly, this avoids a portability headache related to copying va_list arguments (some FreeBSD 5 platforms require va_copy; FreeBSD 4 doesn't support va_copy at all). It also dramatically reduces the size of libarchive for embedded applications: a minimal "untar" program using libarchive can now be under 64k statically linked (as opposed to ~100k using library *printf() functions). MFC after: 14 days
113 lines
4.2 KiB
C
113 lines
4.2 KiB
C
/*-
|
|
* Copyright (c) 2003-2004 Tim Kientzle
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer
|
|
* in this position and unchanged.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
*/
|
|
|
|
#ifndef ARCHIVE_STRING_H_INCLUDED
|
|
#define ARCHIVE_STRING_H_INCLUDED
|
|
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
|
|
/*
|
|
* Basic resizable/reusable string support a la Java's "StringBuffer."
|
|
*
|
|
* Unlike sbuf(9), the buffers here are fully reusable and track the
|
|
* length throughout.
|
|
*
|
|
* Note that all visible symbols here begin with "__archive" as they
|
|
* are internal symbols not intended for anyone outside of this library
|
|
* to see or use.
|
|
*/
|
|
|
|
struct archive_string {
|
|
char *s; /* Pointer to the storage */
|
|
size_t length; /* Length of 's' */
|
|
size_t buffer_length; /* Length of malloc-ed storage */
|
|
};
|
|
|
|
/* Initialize an archive_string object on the stack or elsewhere. */
|
|
#define archive_string_init(a) \
|
|
do { (a)->s = NULL; (a)->length = 0; (a)->buffer_length = 0; } while(0)
|
|
|
|
/* Append a C char to an archive_string, resizing as necessary. */
|
|
struct archive_string *
|
|
__archive_strappend_char(struct archive_string *, char);
|
|
#define archive_strappend_char __archive_strappend_char
|
|
|
|
/* Append a char to an archive_string using UTF8. */
|
|
struct archive_string *
|
|
__archive_strappend_char_UTF8(struct archive_string *, int);
|
|
#define archive_strappend_char_UTF8 __archive_strappend_char_UTF8
|
|
|
|
/* Append an integer in the specified base (2 <= base <= 16). */
|
|
struct archive_string *
|
|
__archive_strappend_int(struct archive_string *as, int d, int base);
|
|
#define archive_strappend_int __archive_strappend_int
|
|
|
|
/* Basic append operation. */
|
|
struct archive_string *
|
|
__archive_string_append(struct archive_string *as, const char *p, size_t s);
|
|
|
|
/* Ensure that the underlying buffer is at least as large as the request. */
|
|
struct archive_string *
|
|
__archive_string_ensure(struct archive_string *, size_t);
|
|
#define archive_string_ensure __archive_string_ensure
|
|
|
|
/* Append C string, which may lack trailing \0. */
|
|
struct archive_string *
|
|
__archive_strncat(struct archive_string *, const char *, size_t);
|
|
#define archive_strncat __archive_strncat
|
|
|
|
/* Append a C string to an archive_string, resizing as necessary. */
|
|
#define archive_strcat(as,p) __archive_string_append((as),(p),strlen(p))
|
|
|
|
/* Copy a C string to an archive_string, resizing as necessary. */
|
|
#define archive_strcpy(as,p) \
|
|
((as)->length = 0, __archive_string_append((as), (p), strlen(p)))
|
|
|
|
/* Copy a C string to an archive_string with limit, resizing as necessary. */
|
|
#define archive_strncpy(as,p,l) \
|
|
((as)->length=0, archive_strncat((as), (p), (l)))
|
|
|
|
/* Return length of string. */
|
|
#define archive_strlen(a) ((a)->length)
|
|
|
|
/* Set string length to zero. */
|
|
#define archive_string_empty(a) ((a)->length = 0)
|
|
|
|
/* Release any allocated storage resources. */
|
|
void __archive_string_free(struct archive_string *);
|
|
#define archive_string_free __archive_string_free
|
|
|
|
/* Like 'vsprintf', but resizes the underlying string as necessary. */
|
|
void __archive_string_vsprintf(struct archive_string *, const char *,
|
|
va_list);
|
|
#define archive_string_vsprintf __archive_string_vsprintf
|
|
|
|
#endif
|