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- /* ====================================================================
- * Copyright (c) 1996,1997 The Apache Group. 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.
- *
- * 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.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission.
- *
- * 5. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED 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 APACHE GROUP OR
- * ITS 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.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
- #include <stdarg.h>
-
- /* Reading is buffered */
- #define B_RD (1)
- /* Writing is buffered */
- #define B_WR (2)
- #define B_RDWR (3)
- /* At end of file, or closed stream; no further input allowed */
- #define B_EOF (4)
- /* No further output possible */
- #define B_EOUT (8)
- /* A read error has occurred */
- #define B_RDERR (16)
- /* A write error has occurred */
- #define B_WRERR (32)
- #define B_ERROR (48)
- /* Use chunked writing */
- #define B_CHUNK (64)
- /* bflush() if a read would block */
- #define B_SAFEREAD (128)
-
- typedef struct buff_struct BUFF;
-
- struct buff_struct
- {
- int flags; /* flags */
- unsigned char *inptr; /* pointer to next location to read */
- int incnt; /* number of bytes left to read from input buffer;
- * always 0 if had a read error */
- int outchunk; /* location of chunk header when chunking */
- int outchunk_header_size; /* how long the header is */
- int outcnt; /* number of byte put in output buffer */
- unsigned char *inbase;
- unsigned char *outbase;
- int bufsiz;
- void (*error)(BUFF *fb, int op, void *data);
- void *error_data;
- long int bytes_sent; /* number of bytes actually written */
-
- pool *pool;
-
- /* could also put pointers to the basic I/O routines here */
- int fd; /* the file descriptor */
- int fd_in; /* input file descriptor, if different */
- };
-
- /* Options to bset/getopt */
- #define BO_BYTECT (1)
-
- /* Stream creation and modification */
- extern BUFF *bcreate(pool *p, int flags);
- extern void bpushfd(BUFF *fb, int fd_in, int fd_out);
- extern int bsetopt(BUFF *fb, int optname, const void *optval);
- extern int bgetopt(BUFF *fb, int optname, void *optval);
- extern int bsetflag(BUFF *fb, int flag, int value);
- extern int bclose(BUFF *fb);
-
- #define bgetflag(fb, flag) ((fb)->flags & (flag))
-
- /* Error handling */
- extern void bonerror(BUFF *fb, void (*error)(BUFF *, int, void *),
- void *data);
-
- /* I/O */
- extern int bread(BUFF *fb, void *buf, int nbyte);
- extern int bgets(char *s, int n, BUFF *fb);
- extern int blookc(char *buff, BUFF *fb);
- extern int bskiplf(BUFF *fb);
- extern int bwrite(BUFF *fb, const void *buf, int nbyte);
- extern int bflush(BUFF *fb);
- extern int bputs(const char *x, BUFF *fb);
- extern int bvputs(BUFF *fb, ...);
- extern int bprintf(BUFF *fb,const char *fmt,...);
- extern int vbprintf(BUFF *fb,const char *fmt,va_list vlist);
-
- /* Internal routines */
- extern int bflsbuf(int c, BUFF *fb);
- extern int bfilbuf(BUFF *fb);
-
- #define bgetc(fb) ( ((fb)->incnt == 0) ? bfilbuf(fb) : \
- ((fb)->incnt--, *((fb)->inptr++)) )
-
- #define bputc(c, fb) ((((fb)->flags & (B_EOUT|B_WRERR|B_WR)) != B_WR || \
- (fb)->outcnt == (fb)->bufsiz) ? bflsbuf(c, (fb)) : \
- ((fb)->outbase[(fb)->outcnt++] = (c), 0))
-