text: /*-
   * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   *
   * Copyright (c) 2000-2011 Poul-Henning Kamp
   * Copyright (c) 2000-2008 Dag-Erling Coïdan Smørgrav
   * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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: head/sys/sys/vsb.h 221993 2011-05-16 16:18:40Z phk $
   */
  
  #ifndef VSB_H_INCLUDED
  #define VSB_H_INCLUDED
  
  /*
   * Structure definition
   */
  struct vsb {
  	unsigned	magic;
  #define VSB_MAGIC	0x4a82dd8a
  	int		 s_error;	/* current error code */
  	char		*s_buf;		/* storage buffer */
  	ssize_t		 s_size;	/* size of storage buffer */
  	ssize_t		 s_len;		/* current length of string */
  #define	VSB_FIXEDLEN	0x00000000	/* fixed length buffer (default) */
  #define	VSB_AUTOEXTEND	0x00000001	/* automatically extend buffer */
  #define	VSB_USRFLAGMSK	0x0000ffff	/* mask of flags the user may specify */
  #define	VSB_DYNAMIC	0x00010000	/* s_buf must be freed */
  #define	VSB_FINISHED	0x00020000	/* set by VSB_finish() */
  #define	VSB_DYNSTRUCT	0x00080000	/* vsb must be freed */
  	int		 s_flags;	/* flags */
  	int		 s_indent;	/* Ident level */
  };
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  /*
   * API functions
   */
  struct vsb	*VSB_new(struct vsb *, char *, int, int) v_deprecated_;
  struct vsb	*VSB_init(struct vsb *, void *, ssize_t);
  struct vsb	*VSB_new_auto(void);
  void		 VSB_clear(struct vsb *);
  int		 VSB_bcat(struct vsb *, const void *, ssize_t);
  int		 VSB_cat(struct vsb *, const char *);
  int		 VSB_printf(struct vsb *, const char *, ...)
  	v_printflike_(2, 3);
  #ifdef va_start
  int		 VSB_vprintf(struct vsb *, const char *, va_list)
  	v_printflike_(2, 0);
  #endif
  int		 VSB_putc(struct vsb *, int);
  int		 VSB_error(const struct vsb *);
  int		 VSB_finish(struct vsb *);
  char		*VSB_data(const struct vsb *);
  ssize_t		 VSB_len(const struct vsb *);
  void		 VSB_delete(struct vsb *) v_deprecated_;
  void		 VSB_fini(struct vsb *);
  void		 VSB_destroy(struct vsb **);
  #define VSB_QUOTE_NONL		1
  #define VSB_QUOTE_JSON		2
  #define VSB_QUOTE_HEX		4
  #define VSB_QUOTE_CSTR		8
  #define VSB_QUOTE_UNSAFE	16
  #define VSB_QUOTE_ESCHEX	32
  void		 VSB_quote_pfx(struct vsb *, const char*, const void *,
  		     int len, int how);
  void		 VSB_quote(struct vsb *, const void *, int len, int how);
  void		 VSB_indent(struct vsb *, int);
  int		 VSB_tofile(const struct vsb *, int fd);
  #ifdef __cplusplus
  };
  #endif
  
  #endif
  