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adds implementation of filesystem_read

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This commit is contained in:
Falk Werner 2019-04-22 18:24:52 +02:00
parent 20fbf8cf96
commit 2a300a63b0
1 changed files with 38 additions and 11 deletions
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49
lib/webfuse/provider/impl/static_filesystem.c
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@ -4,6 +4,11 @@
#include "webfuse/provider/operation/error.h"
#include "webfuse/core/path.h"
#include "webfuse/core/util.h"
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
@ -12,6 +17,7 @@
#define WFP_STATIC_FILESYSTEM_DEFAULT_CAPACITY (16)
#define WFP_STATIC_FILSYSTEM_INDOE_ROOT (1)
#define WFP_STATIC_FILESYSTEM_MAX_READ_SIZE (4 * 1024)
struct wfp_static_filesystem_entry
{
@ -315,28 +321,49 @@ static void wfp_static_filesystem_open(
int flags,
void * user_data)
{
(void) inode;
(void) flags;
(void) user_data;
struct wfp_static_filesystem * filesystem = user_data;
struct wfp_static_filesystem_entry * entry = wfp_static_filesystem_get_entry(filesystem, inode);
wfp_respond_error(request, WF_BAD_NOENTRY);
if ((NULL != entry) && (entry->is_file))
{
if (O_RDONLY == (flags & O_ACCMODE))
{
wfp_respond_open(request, 0U);
}
else
{
wfp_respond_error(request, WF_BAD_ACCESS_DENIED);
}
}
else
{
wfp_respond_error(request, WF_BAD_NOENTRY);
}
}
static void wfp_static_filesystem_read(
struct wfp_request * request,
ino_t inode,
uint32_t handle,
uint32_t WF_UNUSED_PARAM(handle),
size_t offset,
size_t length,
void * user_data)
{
(void) inode;
(void) handle;
(void) offset;
(void) length;
(void) user_data;
struct wfp_static_filesystem * filesystem = user_data;
struct wfp_static_filesystem_entry * entry = wfp_static_filesystem_get_entry(filesystem, inode);
wfp_respond_error(request, WF_BAD_NOENTRY);
if ((NULL != entry) && (entry->is_file))
{
char buffer[WFP_STATIC_FILESYSTEM_MAX_READ_SIZE];
size_t max_size = (length < WFP_STATIC_FILESYSTEM_MAX_READ_SIZE) ? length : WFP_STATIC_FILESYSTEM_MAX_READ_SIZE;
size_t count = entry->read(offset, buffer, max_size, entry->user_data);
wfp_respond_read(request, buffer, count);
}
else
{
wfp_respond_error(request, WF_BAD_NOENTRY);
}
}