mirror of https://github.com/mpv-player/mpv
146 lines
3.3 KiB
C
146 lines
3.3 KiB
C
/*
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* Original author: M. Tourne
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*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <libsmbclient.h>
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#include <unistd.h>
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#include "common/msg.h"
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#include "stream.h"
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#include "options/m_option.h"
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struct priv {
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int fd;
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};
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static void smb_auth_fn(const char *server, const char *share,
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char *workgroup, int wgmaxlen, char *username, int unmaxlen,
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char *password, int pwmaxlen)
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{
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strncpy(workgroup, "LAN", wgmaxlen - 1);
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}
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static int control(stream_t *s, int cmd, void *arg) {
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struct priv *p = s->priv;
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switch(cmd) {
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case STREAM_CTRL_GET_SIZE: {
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off_t size = smbc_lseek(p->fd,0,SEEK_END);
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smbc_lseek(p->fd,s->pos,SEEK_SET);
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if(size != (off_t)-1) {
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*(int64_t *)arg = size;
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return 1;
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}
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}
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break;
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}
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return STREAM_UNSUPPORTED;
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}
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static int seek(stream_t *s,int64_t newpos) {
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struct priv *p = s->priv;
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if(smbc_lseek(p->fd,newpos,SEEK_SET)<0) {
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return 0;
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}
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return 1;
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}
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static int fill_buffer(stream_t *s, char* buffer, int max_len){
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struct priv *p = s->priv;
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int r = smbc_read(p->fd,buffer,max_len);
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return (r <= 0) ? -1 : r;
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}
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static int write_buffer(stream_t *s, char* buffer, int len) {
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struct priv *p = s->priv;
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int r;
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int wr = 0;
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while (wr < len) {
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r = smbc_write(p->fd,buffer,len);
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if (r <= 0)
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return -1;
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wr += r;
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buffer += r;
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}
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return len;
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}
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static void close_f(stream_t *s){
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struct priv *p = s->priv;
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smbc_close(p->fd);
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}
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static int open_f (stream_t *stream)
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{
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char *filename;
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int64_t len;
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int fd, err;
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struct priv *priv = talloc_zero(stream, struct priv);
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stream->priv = priv;
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filename = stream->url;
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bool write = stream->mode == STREAM_WRITE;
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mode_t m = write ? O_RDWR|O_CREAT|O_TRUNC : O_RDONLY;
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if(!filename) {
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MP_ERR(stream, "[smb] Bad url\n");
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return STREAM_ERROR;
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}
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err = smbc_init(smb_auth_fn, 1);
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if (err < 0) {
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MP_ERR(stream, "Cannot init the libsmbclient library: %d\n",err);
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return STREAM_ERROR;
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}
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fd = smbc_open(filename, m,0644);
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if (fd < 0) {
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MP_ERR(stream, "Could not open from LAN: '%s'\n", filename);
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return STREAM_ERROR;
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}
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len = 0;
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if(!write) {
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len = smbc_lseek(fd,0,SEEK_END);
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smbc_lseek (fd, 0, SEEK_SET);
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}
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if(len > 0 || write) {
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stream->seekable = true;
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stream->seek = seek;
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}
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priv->fd = fd;
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stream->fill_buffer = fill_buffer;
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stream->write_buffer = write_buffer;
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stream->close = close_f;
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stream->control = control;
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stream->read_chunk = 128 * 1024;
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stream->streaming = true;
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return STREAM_OK;
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}
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const stream_info_t stream_info_smb = {
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.name = "smb",
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.open = open_f,
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.protocols = (const char*const[]){"smb", NULL},
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.can_write = true, //who's gonna do that?
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};
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