stream/stream_smb.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include "config.h"
  20
  21 #include <libsmbclient.h>
  22 #include <unistd.h>
  23
  24 #include "mp_msg.h"
  25 #include "stream.h"
  26 #include "help_mp.h"
  27 #include "m_option.h"
  28 #include "m_struct.h"
  29
  30 static struct stream_priv_s {
  31 } stream_priv_dflts = {
  32 };
  33
  34 #define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
  35 // URL definition
  36 static const m_option_t stream_opts_fields[] = {
  37   { NULL, NULL, 0, 0, 0, 0,  NULL }
  38 };
  39
  40 static const struct m_struct_st stream_opts = {
  41   "smb",
  42   sizeof(struct stream_priv_s),
  43   &stream_priv_dflts,
  44   stream_opts_fields
  45 };
  46
  47 static char smb_password[15];
  48 static char smb_username[15];
  49
  50 static void smb_auth_fn(const char *server, const char *share,
  51              char *workgroup, int wgmaxlen, char *username, int unmaxlen,
  52              char *password, int pwmaxlen)
  53 {
  54   char temp[128];
  55
  56   strcpy(temp, "LAN");
  57   if (temp[strlen(temp) - 1] == 0x0a)
  58     temp[strlen(temp) - 1] = 0x00;
  59
  60   if (temp[0]) strncpy(workgroup, temp, wgmaxlen - 1);
  61
  62   strcpy(temp, smb_username);
  63   if (temp[strlen(temp) - 1] == 0x0a)
  64     temp[strlen(temp) - 1] = 0x00;
  65
  66   if (temp[0]) strncpy(username, temp, unmaxlen - 1);
  67
  68   strcpy(temp, smb_password);
  69   if (temp[strlen(temp) - 1] == 0x0a)
  70     temp[strlen(temp) - 1] = 0x00;
  71
  72    if (temp[0]) strncpy(password, temp, pwmaxlen - 1);
  73 }
  74
  75 static int control(stream_t *s, int cmd, void *arg) {
  76   switch(cmd) {
  77     case STREAM_CTRL_GET_SIZE: {
  78       off_t size = smbc_lseek(s->fd,0,SEEK_END);
  79       smbc_lseek(s->fd,s->pos,SEEK_SET);
  80       if(size != (off_t)-1) {
  81         *((off_t*)arg) = size;
  82         return 1;
  83       }
  84     }
  85   }
  86   return STREAM_UNSUPPORTED;
  87 }
  88
  89 static int seek(stream_t *s,off_t newpos) {
  90   s->pos = newpos;
  91   if(smbc_lseek(s->fd,s->pos,SEEK_SET)<0) {
  92     s->eof=1;
  93     return 0;
  94   }
  95   return 1;
  96 }
  97
  98 static int fill_buffer(stream_t *s, char* buffer, int max_len){
  99   int r = smbc_read(s->fd,buffer,max_len);
 100   return (r <= 0) ? -1 : r;
 101 }
 102
 103 static int write_buffer(stream_t *s, char* buffer, int len) {
 104   int r = smbc_write(s->fd,buffer,len);
 105   return (r <= 0) ? -1 : r;
 106 }
 107
 108 static void close_f(stream_t *s){
 109   smbc_close(s->fd);
 110 }
 111
 112 static int open_f (stream_t *stream, int mode, void *opts, int* file_format) {
 113   struct stream_priv_s *p = (struct stream_priv_s*)opts;
 114   char *filename;
 115   mode_t m = 0;
 116   off_t len;
 117   int fd, err;
 118
 119   filename = stream->url;
 120
 121   if(mode == STREAM_READ)
 122     m = O_RDONLY;
 123   else if (mode == STREAM_WRITE) //who's gonna do that ?
 124     m = O_RDWR|O_CREAT|O_TRUNC;
 125   else {
 126     mp_msg(MSGT_OPEN, MSGL_ERR, "[smb] Unknown open mode %d\n", mode);
 127     m_struct_free (&stream_opts, opts);
 128     return STREAM_UNSUPPORTED;
 129   }
 130
 131   if(!filename) {
 132     mp_msg(MSGT_OPEN,MSGL_ERR, "[smb] Bad url\n");
 133     m_struct_free(&stream_opts, opts);
 134     return STREAM_ERROR;
 135   }
 136
 137   err = smbc_init(smb_auth_fn, 1);
 138   if (err < 0) {
 139     mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_SMBInitError,err);
 140     m_struct_free(&stream_opts, opts);
 141     return STREAM_ERROR;
 142   }
 143
 144   fd = smbc_open(filename, m,0644);
 145   if (fd < 0) {
 146     mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_SMBFileNotFound, filename);
 147     m_struct_free(&stream_opts, opts);
 148     return STREAM_ERROR;
 149   }
 150
 151   stream->flags = mode;
 152   len = 0;
 153   if(mode == STREAM_READ) {
 154     len = smbc_lseek(fd,0,SEEK_END);
 155     smbc_lseek (fd, 0, SEEK_SET);
 156   }
 157   if(len > 0 || mode == STREAM_WRITE) {
 158     stream->flags |= MP_STREAM_SEEK;
 159     stream->seek = seek;
 160     if(mode == STREAM_READ) stream->end_pos = len;
 161   }
 162   stream->type = STREAMTYPE_SMB;
 163   stream->fd = fd;
 164   stream->fill_buffer = fill_buffer;
 165   stream->write_buffer = write_buffer;
 166   stream->close = close_f;
 167   stream->control = control;
 168
 169   m_struct_free(&stream_opts, opts);
 170   return STREAM_OK;
 171 }
 172
 173 const stream_info_t stream_info_smb = {
 174   "Server Message Block",
 175   "smb",
 176   "M. Tourne",
 177   "based on the code from 'a bulgarian' (one says)",
 178   open_f,
 179   {"smb", NULL},
 180   &stream_opts,
 181   0 //Url is an option string
 182 };