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Diffstat (limited to 'usr.bin/make/buf.c')
| -rw-r--r-- | usr.bin/make/buf.c | 291 |
1 files changed, 0 insertions, 291 deletions
diff --git a/usr.bin/make/buf.c b/usr.bin/make/buf.c deleted file mode 100644 index fa866d3..0000000 --- a/usr.bin/make/buf.c +++ /dev/null @@ -1,291 +0,0 @@ -/*- - * Copyright (c) 2005 Max Okumoto - * Copyright (c) 1988, 1989, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * Copyright (c) 1988, 1989 by Adam de Boor - * Copyright (c) 1989 by Berkeley Softworks - * All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Adam de Boor. - * - * 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 acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. - * - * @(#)buf.c 8.1 (Berkeley) 6/6/93 - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * buf.c - * Functions for automatically-expanded buffers. - */ - -#include <string.h> -#include <stdlib.h> - -#include "buf.h" -#include "util.h" - -/** - * Returns the number of bytes in the buffer. Doesn't include the - * null-terminating byte. - */ -size_t -Buf_Size(const Buffer *buf) -{ - - return (buf->end - buf->buf); -} - -/** - * Returns a reference to the data contained in the buffer. - * - * @note Adding data to the Buffer object may invalidate the reference. - */ -char * -Buf_Data(const Buffer *bp) -{ - - return (bp->buf); -} - -/** - * Expand the buffer to hold the number of additional bytes, plus - * space to store a terminating NULL byte. - */ -static inline void -BufExpand(Buffer *bp, size_t nb) -{ - size_t len = Buf_Size(bp); - size_t size; - - if (bp->size < len + nb + 1) { - size = bp->size + MAX(nb + 1, BUF_ADD_INC); - bp->size = size; - bp->buf = erealloc(bp->buf, size); - bp->end = bp->buf + len; - } -} - -/** - * Add a single byte to the buffer. - */ -void -Buf_AddByte(Buffer *bp, Byte byte) -{ - - BufExpand(bp, 1); - - *bp->end = byte; - bp->end++; - *bp->end = '\0'; -} - -/** - * Add bytes to the buffer. - */ -void -Buf_AddBytes(Buffer *bp, size_t len, const Byte *bytes) -{ - - BufExpand(bp, len); - - memcpy(bp->end, bytes, len); - bp->end += len; - *bp->end = '\0'; -} - -/** - * Get a reference to the internal buffer. - * - * len: - * Pointer to where we return the number of bytes in the internal buffer. - * - * Returns: - * return A pointer to the data. - */ -Byte * -Buf_GetAll(Buffer *bp, size_t *len) -{ - - if (len != NULL) - *len = Buf_Size(bp); - - return (bp->buf); -} - -/** - * Get the contents of a buffer and destroy the buffer. If the buffer - * is NULL, return NULL. - * - * Returns: - * the pointer to the data. - */ -char * -Buf_Peel(Buffer *bp) -{ - char *ret; - - if (bp == NULL) - return (NULL); - ret = bp->buf; - free(bp); - return (ret); -} - -/** - * Initialize a buffer. If no initial size is given, a reasonable - * default is used. - * - * Returns: - * A buffer object to be given to other functions in this library. - * - * Side Effects: - * Space is allocated for the Buffer object and a internal buffer. - */ -Buffer * -Buf_Init(size_t size) -{ - Buffer *bp; /* New Buffer */ - - if (size <= 0) - size = BUF_DEF_SIZE; - - bp = emalloc(sizeof(*bp)); - bp->size = size; - bp->buf = emalloc(size); - bp->end = bp->buf; - *bp->end = '\0'; - - return (bp); -} - -/** - * Destroy a buffer, and optionally free its data, too. - * - * Side Effects: - * Space for the Buffer object and possibly the internal buffer - * is de-allocated. - */ -void -Buf_Destroy(Buffer *buf, Boolean freeData) -{ - - if (freeData) - free(buf->buf); - free(buf); -} - -/** - * Replace the last byte in a buffer. If the buffer was empty - * initially, then a new byte will be added. - */ -void -Buf_ReplaceLastByte(Buffer *bp, Byte byte) -{ - - if (bp->end == bp->buf) { - Buf_AddByte(bp, byte); - } else { - *(bp->end - 1) = byte; - } -} - -/** - * Append characters in str to Buffer object - */ -void -Buf_Append(Buffer *bp, const char str[]) -{ - - Buf_AddBytes(bp, strlen(str), str); -} - -/** - * Append characters in buf to Buffer object - */ -void -Buf_AppendBuf(Buffer *bp, const Buffer *buf) -{ - - Buf_AddBytes(bp, Buf_Size(buf), buf->buf); -} - -/** - * Append characters between str and end to Buffer object. - */ -void -Buf_AppendRange(Buffer *bp, const char str[], const char *end) -{ - - Buf_AddBytes(bp, end - str, str); -} - -/** - * Convert newlines in buffer to spaces. The trailing newline is - * removed. - */ -void -Buf_StripNewlines(Buffer *bp) -{ - char *ptr = bp->end; - - /* - * If there is anything in the buffer, remove the last - * newline character. - */ - if (ptr != bp->buf) { - if (*(ptr - 1) == '\n') { - /* shorten buffer */ - *(ptr - 1) = '\0'; - --bp->end; - } - --ptr; - } - - /* Convert newline characters to a space characters. */ - while (ptr != bp->buf) { - if (*ptr == '\n') { - *ptr = ' '; - } - --ptr; - } -} -/** - * Clear the contents of the buffer. - */ -void -Buf_Clear(Buffer *bp) -{ - - bp->end = bp->buf; - *bp->end = '\0'; -} |
