mpv/stream/stream_smb.c

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/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <libsmbclient.h>
#include <unistd.h>
#include "core/mp_msg.h"
#include "stream.h"
#include "core/m_option.h"
#include "core/m_struct.h"
static struct stream_priv_s {
} stream_priv_dflts = {
};
#define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
// URL definition
static const m_option_t stream_opts_fields[] = {
{ NULL, NULL, 0, 0, 0, 0, NULL }
};
static const struct m_struct_st stream_opts = {
"smb",
sizeof(struct stream_priv_s),
&stream_priv_dflts,
stream_opts_fields
};
static char smb_password[15];
static char smb_username[15];
static void smb_auth_fn(const char *server, const char *share,
char *workgroup, int wgmaxlen, char *username, int unmaxlen,
char *password, int pwmaxlen)
{
char temp[128];
strcpy(temp, "LAN");
if (temp[strlen(temp) - 1] == 0x0a)
temp[strlen(temp) - 1] = 0x00;
if (temp[0]) strncpy(workgroup, temp, wgmaxlen - 1);
strcpy(temp, smb_username);
if (temp[strlen(temp) - 1] == 0x0a)
temp[strlen(temp) - 1] = 0x00;
if (temp[0]) strncpy(username, temp, unmaxlen - 1);
strcpy(temp, smb_password);
if (temp[strlen(temp) - 1] == 0x0a)
temp[strlen(temp) - 1] = 0x00;
if (temp[0]) strncpy(password, temp, pwmaxlen - 1);
}
static int control(stream_t *s, int cmd, void *arg) {
switch(cmd) {
case STREAM_CTRL_GET_SIZE: {
off_t size = smbc_lseek(s->fd,0,SEEK_END);
smbc_lseek(s->fd,s->pos,SEEK_SET);
if(size != (off_t)-1) {
*(uint64_t *)arg = size;
return 1;
}
}
}
return STREAM_UNSUPPORTED;
}
static int seek(stream_t *s,int64_t newpos) {
s->pos = newpos;
if(smbc_lseek(s->fd,s->pos,SEEK_SET)<0) {
s->eof=1;
return 0;
}
return 1;
}
static int fill_buffer(stream_t *s, char* buffer, int max_len){
int r = smbc_read(s->fd,buffer,max_len);
return (r <= 0) ? -1 : r;
}
static int write_buffer(stream_t *s, char* buffer, int len) {
int r;
int wr = 0;
while (wr < len) {
r = smbc_write(s->fd,buffer,len);
if (r <= 0)
return -1;
wr += r;
buffer += r;
}
return len;
}
static void close_f(stream_t *s){
smbc_close(s->fd);
}
static int open_f (stream_t *stream, int mode, void *opts, int* file_format) {
char *filename;
mode_t m = 0;
int64_t len;
int fd, err;
filename = stream->url;
if(mode == STREAM_READ)
m = O_RDONLY;
else if (mode == STREAM_WRITE) //who's gonna do that ?
m = O_RDWR|O_CREAT|O_TRUNC;
else {
mp_msg(MSGT_OPEN, MSGL_ERR, "[smb] Unknown open mode %d\n", mode);
m_struct_free (&stream_opts, opts);
return STREAM_UNSUPPORTED;
}
if(!filename) {
mp_msg(MSGT_OPEN,MSGL_ERR, "[smb] Bad url\n");
m_struct_free(&stream_opts, opts);
return STREAM_ERROR;
}
err = smbc_init(smb_auth_fn, 1);
if (err < 0) {
mp_tmsg(MSGT_OPEN,MSGL_ERR,"Cannot init the libsmbclient library: %d\n",err);
m_struct_free(&stream_opts, opts);
return STREAM_ERROR;
}
fd = smbc_open(filename, m,0644);
if (fd < 0) {
mp_tmsg(MSGT_OPEN,MSGL_ERR,"Could not open from LAN: '%s'\n", filename);
m_struct_free(&stream_opts, opts);
return STREAM_ERROR;
}
stream->flags = mode;
len = 0;
if(mode == STREAM_READ) {
len = smbc_lseek(fd,0,SEEK_END);
smbc_lseek (fd, 0, SEEK_SET);
}
if(len > 0 || mode == STREAM_WRITE) {
stream->flags |= MP_STREAM_SEEK;
stream->seek = seek;
if(mode == STREAM_READ) stream->end_pos = len;
}
stream->type = STREAMTYPE_SMB;
stream->fd = fd;
stream->fill_buffer = fill_buffer;
stream->write_buffer = write_buffer;
stream->close = close_f;
stream->control = control;
m_struct_free(&stream_opts, opts);
return STREAM_OK;
}
const stream_info_t stream_info_smb = {
"Server Message Block",
"smb",
"M. Tourne",
"based on the code from 'a bulgarian' (one says)",
open_f,
{"smb", NULL},
&stream_opts,
0 //Url is an option string
};