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-rw-r--r--devel/ding-libs/files/fmemopen.c259
1 files changed, 0 insertions, 259 deletions
diff --git a/devel/ding-libs/files/fmemopen.c b/devel/ding-libs/files/fmemopen.c
deleted file mode 100644
index 632db6d8d5ca..000000000000
--- a/devel/ding-libs/files/fmemopen.c
+++ /dev/null
@@ -1,259 +0,0 @@
-/*-
- * Copyright (C) 2013 Pietro Cerutti <gahr@FreeBSD.org>
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY 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 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.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <fcntl.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-// #include "local.h"
-
-struct fmemopen_cookie
-{
- char *buf; /* pointer to the memory region */
- bool own; /* did we allocate the buffer ourselves? */
- char bin; /* is this a binary buffer? */
- size_t size; /* buffer length in bytes */
- size_t len; /* data length in bytes */
- size_t off; /* current offset into the buffer */
-};
-
-static int fmemopen_read(void *cookie, char *buf, int nbytes);
-static int fmemopen_write(void *cookie, const char *buf, int nbytes);
-static fpos_t fmemopen_seek(void *cookie, fpos_t offset, int whence);
-static int fmemopen_close(void *cookie);
-
-FILE *
-fmemopen(void * __restrict buf, size_t size, const char * __restrict mode)
-{
- struct fmemopen_cookie *ck;
- FILE *f;
- int flags, rc;
-
- /*
- * POSIX says we shall return EINVAL if size is 0.
- */
- if (size == 0) {
- errno = EINVAL;
- return (NULL);
- }
-
- /*
- * Retrieve the flags as used by open(2) from the mode argument, and
- * validate them.
- */
- rc = __sflags(mode, &flags);
- if (rc == 0) {
- errno = EINVAL;
- return (NULL);
- }
-
- /*
- * There's no point in requiring an automatically allocated buffer
- * in write-only mode.
- */
- if (!(flags & O_RDWR) && buf == NULL) {
- errno = EINVAL;
- return (NULL);
- }
-
- ck = malloc(sizeof(struct fmemopen_cookie));
- if (ck == NULL) {
- return (NULL);
- }
-
- ck->off = 0;
- ck->size = size;
-
- /* Check whether we have to allocate the buffer ourselves. */
- ck->own = ((ck->buf = buf) == NULL);
- if (ck->own) {
- ck->buf = malloc(size);
- if (ck->buf == NULL) {
- free(ck);
- return (NULL);
- }
- }
-
- /*
- * POSIX distinguishes between w+ and r+, in that w+ is supposed to
- * truncate the buffer.
- */
- if (ck->own || mode[0] == 'w') {
- ck->buf[0] = '\0';
- }
-
- /* Check for binary mode. */
- ck->bin = strchr(mode, 'b') != NULL;
-
- /*
- * The size of the current buffer contents is set depending on the
- * mode:
- *
- * for append (text-mode), the position of the first NULL byte, or the
- * size of the buffer if none is found
- *
- * for append (binary-mode), the size of the buffer
- *
- * for read, the size of the buffer
- *
- * for write, 0
- */
- switch (mode[0]) {
- case 'a':
- ck->off = ck->len = strnlen(ck->buf, ck->size);
- break;
- case 'r':
- ck->len = size;
- break;
- case 'w':
- ck->len = 0;
- break;
- }
-
- f = funopen(ck,
- flags & O_WRONLY ? NULL : fmemopen_read,
- flags & O_RDONLY ? NULL : fmemopen_write,
- fmemopen_seek, fmemopen_close);
-
- if (f == NULL) {
- if (ck->own)
- free(ck->buf);
- free(ck);
- return (NULL);
- }
-
- /*
- * Turn off buffering, so a write past the end of the buffer
- * correctly returns a short object count.
- */
- setvbuf(f, NULL, _IONBF, 0);
-
- return (f);
-}
-
-static int
-fmemopen_read(void *cookie, char *buf, int nbytes)
-{
- struct fmemopen_cookie *ck = cookie;
-
- if (nbytes > ck->len - ck->off)
- nbytes = ck->len - ck->off;
-
- if (nbytes == 0)
- return (0);
-
- memcpy(buf, ck->buf + ck->off, nbytes);
-
- ck->off += nbytes;
-
- return (nbytes);
-}
-
-static int
-fmemopen_write(void *cookie, const char *buf, int nbytes)
-{
- struct fmemopen_cookie *ck = cookie;
-
- if (nbytes > ck->size - ck->off)
- nbytes = ck->size - ck->off;
-
- if (nbytes == 0)
- return (0);
-
- memcpy(ck->buf + ck->off, buf, nbytes);
-
- ck->off += nbytes;
-
- if (ck->off > ck->len)
- ck->len = ck->off;
-
- /*
- * We append a NULL byte if all these conditions are met:
- * - the buffer is not binary
- * - the buffer is not full
- * - the data just written doesn't already end with a NULL byte
- */
- if (!ck->bin && ck->off < ck->size && ck->buf[ck->off - 1] != '\0')
- ck->buf[ck->off] = '\0';
-
- return (nbytes);
-}
-
-static fpos_t
-fmemopen_seek(void *cookie, fpos_t offset, int whence)
-{
- struct fmemopen_cookie *ck = cookie;
-
-
- switch (whence) {
- case SEEK_SET:
- if (offset > ck->size) {
- errno = EINVAL;
- return (-1);
- }
- ck->off = offset;
- break;
-
- case SEEK_CUR:
- if (ck->off + offset > ck->size) {
- errno = EINVAL;
- return (-1);
- }
- ck->off += offset;
- break;
-
- case SEEK_END:
- if (offset > 0 || -offset > ck->len) {
- errno = EINVAL;
- return (-1);
- }
- ck->off = ck->len + offset;
- break;
-
- default:
- errno = EINVAL;
- return (-1);
- }
-
- return (ck->off);
-}
-
-static int
-fmemopen_close(void *cookie)
-{
- struct fmemopen_cookie *ck = cookie;
-
- if (ck->own)
- free(ck->buf);
-
- free(ck);
-
- return (0);
-}