0aee49bdf8
This updates the copyright header to all be the same, which is pretty much an update of where to mail request for a copy of the GPL and the years of the MPD project. This also puts all committers under 'The Music Player Project' umbrella. These entries should go individually in the AUTHORS file, for consistancy.
147 lines
2.9 KiB
C
147 lines
2.9 KiB
C
/*
|
|
* Copyright (C) 2003-2009 The Music Player Daemon Project
|
|
* http://www.musicpd.org
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU 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.
|
|
*/
|
|
|
|
#include "input/file_input_plugin.h"
|
|
#include "input_plugin.h"
|
|
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <glib.h>
|
|
|
|
#undef G_LOG_DOMAIN
|
|
#define G_LOG_DOMAIN "input_file"
|
|
|
|
static bool
|
|
input_file_open(struct input_stream *is, const char *filename)
|
|
{
|
|
int fd, ret;
|
|
struct stat st;
|
|
|
|
char* pathname = g_strdup(filename);
|
|
|
|
if (filename[0] != '/')
|
|
{
|
|
g_free(pathname);
|
|
return false;
|
|
}
|
|
|
|
if (stat(filename, &st) < 0) {
|
|
char* slash = strrchr(pathname, '/');
|
|
*slash = '\0';
|
|
}
|
|
|
|
fd = open(pathname, O_RDONLY);
|
|
if (fd < 0) {
|
|
is->error = errno;
|
|
g_free(pathname);
|
|
return false;
|
|
}
|
|
|
|
is->seekable = true;
|
|
|
|
ret = fstat(fd, &st);
|
|
if (ret < 0) {
|
|
is->error = errno;
|
|
close(fd);
|
|
g_free(pathname);
|
|
return false;
|
|
}
|
|
|
|
if (!S_ISREG(st.st_mode)) {
|
|
g_debug("Not a regular file: %s", pathname);
|
|
is->error = EINVAL;
|
|
close(fd);
|
|
g_free(pathname);
|
|
return false;
|
|
}
|
|
|
|
is->size = st.st_size;
|
|
|
|
#ifdef POSIX_FADV_SEQUENTIAL
|
|
posix_fadvise(fd, (off_t)0, is->size, POSIX_FADV_SEQUENTIAL);
|
|
#endif
|
|
|
|
is->plugin = &input_plugin_file;
|
|
is->data = GINT_TO_POINTER(fd);
|
|
is->ready = true;
|
|
|
|
g_free(pathname);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
input_file_seek(struct input_stream *is, off_t offset, int whence)
|
|
{
|
|
int fd = GPOINTER_TO_INT(is->data);
|
|
|
|
offset = lseek(fd, offset, whence);
|
|
if (offset < 0) {
|
|
is->error = errno;
|
|
return false;
|
|
}
|
|
|
|
is->offset = offset;
|
|
return true;
|
|
}
|
|
|
|
static size_t
|
|
input_file_read(struct input_stream *is, void *ptr, size_t size)
|
|
{
|
|
int fd = GPOINTER_TO_INT(is->data);
|
|
ssize_t nbytes;
|
|
|
|
nbytes = read(fd, ptr, size);
|
|
if (nbytes < 0) {
|
|
is->error = errno;
|
|
g_debug("input_file_read: error reading: %s\n",
|
|
strerror(is->error));
|
|
return 0;
|
|
}
|
|
|
|
is->offset += nbytes;
|
|
return (size_t)nbytes;
|
|
}
|
|
|
|
static void
|
|
input_file_close(struct input_stream *is)
|
|
{
|
|
int fd = GPOINTER_TO_INT(is->data);
|
|
|
|
close(fd);
|
|
}
|
|
|
|
static bool
|
|
input_file_eof(struct input_stream *is)
|
|
{
|
|
return is->offset >= is->size;
|
|
}
|
|
|
|
const struct input_plugin input_plugin_file = {
|
|
.name = "file",
|
|
.open = input_file_open,
|
|
.close = input_file_close,
|
|
.read = input_file_read,
|
|
.eof = input_file_eof,
|
|
.seek = input_file_seek,
|
|
};
|