diff options
Diffstat (limited to 'crypto/heimdal/appl/ftp/common/buffer.c')
| -rw-r--r-- | crypto/heimdal/appl/ftp/common/buffer.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/crypto/heimdal/appl/ftp/common/buffer.c b/crypto/heimdal/appl/ftp/common/buffer.c new file mode 100644 index 0000000..0385d49 --- /dev/null +++ b/crypto/heimdal/appl/ftp/common/buffer.c @@ -0,0 +1,69 @@ +/* + * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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 "common.h" +#include <stdio.h> +#include <err.h> +#include "roken.h" + +RCSID("$Id: buffer.c,v 1.3 1999/12/02 16:58:29 joda Exp $"); + +/* + * Allocate a buffer enough to handle st->st_blksize, if + * there is such a field, otherwise BUFSIZ. + */ + +void * +alloc_buffer (void *oldbuf, size_t *sz, struct stat *st) +{ + size_t new_sz; + + new_sz = BUFSIZ; +#ifdef HAVE_ST_BLKSIZE + if (st) + new_sz = max(BUFSIZ, st->st_blksize); +#endif + if(new_sz > *sz) { + if (oldbuf) + free (oldbuf); + oldbuf = malloc (new_sz); + if (oldbuf == NULL) { + warn ("malloc"); + *sz = 0; + return NULL; + } + *sz = new_sz; + } + return oldbuf; +} + |
