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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-16 16:06:07 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-16 16:06:07 -0600
commitbe0ca741fd12897337408d1d7a7d8f5f18e1fac9 (patch)
treeb9fa3458193a17180d8773a0204ee05ae206cd99 /libkdenetwork/libgpgme-copy/gpgme/data-mem.c
parentbbb7afdb6da2969535e7f05715e2cb95cfdc917c (diff)
downloadtdepim-be0ca741fd12897337408d1d7a7d8f5f18e1fac9.tar.gz
tdepim-be0ca741fd12897337408d1d7a7d8f5f18e1fac9.zip
Finish rename from prior commit
Diffstat (limited to 'libkdenetwork/libgpgme-copy/gpgme/data-mem.c')
-rw-r--r--libkdenetwork/libgpgme-copy/gpgme/data-mem.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/libkdenetwork/libgpgme-copy/gpgme/data-mem.c b/libkdenetwork/libgpgme-copy/gpgme/data-mem.c
deleted file mode 100644
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--- a/libkdenetwork/libgpgme-copy/gpgme/data-mem.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/* data-mem.c - A memory based data object.
- Copyright (C) 2002, 2003, 2004 g10 Code GmbH
-
- This file is part of GPGME.
-
- GPGME is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as
- published by the Free Software Foundation; either version 2.1 of
- the License, or (at your option) any later version.
-
- GPGME is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
-
-#if HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <assert.h>
-#include <string.h>
-
-#include "data.h"
-#include "util.h"
-
-
-static ssize_t
-mem_read (gpgme_data_t dh, void *buffer, size_t size)
-{
- size_t amt = dh->data.mem.length - dh->data.mem.offset;
- const char *src;
-
- if (!amt)
- return 0;
-
- if (size < amt)
- amt = size;
-
- src = dh->data.mem.buffer ? dh->data.mem.buffer : dh->data.mem.orig_buffer;
- memcpy (buffer, src + dh->data.mem.offset, amt);
- dh->data.mem.offset += amt;
- return amt;
-}
-
-
-static ssize_t
-mem_write (gpgme_data_t dh, const void *buffer, size_t size)
-{
- size_t unused;
-
- if (!dh->data.mem.buffer && dh->data.mem.orig_buffer)
- {
- size_t new_size = dh->data.mem.size;
- char *new_buffer;
-
- if (new_size < dh->data.mem.offset + size)
- new_size = dh->data.mem.offset + size;
-
- new_buffer = malloc (new_size);
- if (!new_buffer)
- return -1;
- memcpy (new_buffer, dh->data.mem.orig_buffer, dh->data.mem.length);
-
- dh->data.mem.buffer = new_buffer;
- dh->data.mem.size = new_size;
- }
-
- unused = dh->data.mem.size - dh->data.mem.offset;
- if (unused < size)
- {
- /* Allocate a large enough buffer with exponential backoff. */
-#define INITIAL_ALLOC 512
- size_t new_size = dh->data.mem.size
- ? (2 * dh->data.mem.size) : INITIAL_ALLOC;
- char *new_buffer;
-
- if (new_size < dh->data.mem.offset + size)
- new_size = dh->data.mem.offset + size;
-
- new_buffer = realloc (dh->data.mem.buffer, new_size);
- if (!new_buffer && new_size > dh->data.mem.offset + size)
- {
- /* Maybe we were too greedy, try again. */
- new_size = dh->data.mem.offset + size;
- new_buffer = realloc (dh->data.mem.buffer, new_size);
- }
- if (!new_buffer)
- return -1;
- dh->data.mem.buffer = new_buffer;
- dh->data.mem.size = new_size;
- }
-
- memcpy (dh->data.mem.buffer + dh->data.mem.offset, buffer, size);
- dh->data.mem.offset += size;
- if (dh->data.mem.length < dh->data.mem.offset)
- dh->data.mem.length = dh->data.mem.offset;
- return size;
-}
-
-
-static off_t
-mem_seek (gpgme_data_t dh, off_t offset, int whence)
-{
- switch (whence)
- {
- case SEEK_SET:
- if (offset < 0 || offset > dh->data.mem.length)
- {
- errno = EINVAL;
- return -1;
- }
- dh->data.mem.offset = offset;
- break;
- case SEEK_CUR:
- if ((offset > 0 && dh->data.mem.length - dh->data.mem.offset < offset)
- || (offset < 0 && dh->data.mem.offset < -offset))
- {
- errno = EINVAL;
- return -1;
- }
- dh->data.mem.offset += offset;
- break;
- case SEEK_END:
- if (offset > 0 || -offset > dh->data.mem.length)
- {
- errno = EINVAL;
- return -1;
- }
- dh->data.mem.offset = dh->data.mem.length - offset;
- break;
- default:
- errno = EINVAL;
- return -1;
- }
- return dh->data.mem.offset;
-}
-
-
-static void
-mem_release (gpgme_data_t dh)
-{
- if (dh->data.mem.buffer)
- free (dh->data.mem.buffer);
-}
-
-
-static struct _gpgme_data_cbs mem_cbs =
- {
- mem_read,
- mem_write,
- mem_seek,
- mem_release,
- NULL
- };
-
-
-/* Create a new data buffer and return it in R_DH. */
-gpgme_error_t
-gpgme_data_new (gpgme_data_t *dh)
-{
- gpgme_error_t err = _gpgme_data_new (dh, &mem_cbs);
- if (err)
- return err;
-
- return 0;
-}
-
-
-/* Create a new data buffer filled with SIZE bytes starting from
- BUFFER. If COPY is zero, copying is delayed until necessary, and
- the data is taken from the original location when needed. */
-gpgme_error_t
-gpgme_data_new_from_mem (gpgme_data_t *dh, const char *buffer,
- size_t size, int copy)
-{
- gpgme_error_t err = _gpgme_data_new (dh, &mem_cbs);
- if (err)
- return err;
-
- if (copy)
- {
- char *bufcpy = malloc (size);
- if (!bufcpy)
- _gpgme_data_release (*dh);
- memcpy (bufcpy, buffer, size);
- (*dh)->data.mem.buffer = bufcpy;
- }
- else
- (*dh)->data.mem.orig_buffer = buffer;
-
- (*dh)->data.mem.size = size;
- (*dh)->data.mem.length = size;
- return 0;
-}
-
-
-/* Destroy the data buffer DH and return a pointer to its content.
- The memory has be to released with gpgme_free() by the user. It's
- size is returned in R_LEN. */
-char *
-gpgme_data_release_and_get_mem (gpgme_data_t dh, size_t *r_len)
-{
- char *str = NULL;
-
- if (!dh || dh->cbs != &mem_cbs)
- {
- gpgme_data_release (dh);
- return NULL;
- }
-
- str = dh->data.mem.buffer;
- if (!str && dh->data.mem.orig_buffer)
- {
- str = malloc (dh->data.mem.length);
- if (!str)
- {
- gpgme_data_release (dh);
- return NULL;
- }
- memcpy (str, dh->data.mem.orig_buffer, dh->data.mem.length);
- }
- else
- /* Prevent mem_release from releasing the buffer memory. We must
- not fail from this point. */
- dh->data.mem.buffer = NULL;
-
- if (r_len)
- *r_len = dh->data.mem.length;
-
- gpgme_data_release (dh);
-
- return str;
-}
-
-
-/* Release the memory returned by gpgme_data_release_and_get_mem(). */
-void
-gpgme_free (void *buffer)
-{
- if (buffer)
- free (buffer);
-}
-