libmpdemux/stream_smb.c

   1
   2 #include "config.h"
   3
   4 #ifdef LIBSMBCLIENT
   5
   6 #include <libsmbclient.h>
   7 #include <unistd.h>
   8
   9 #include "mp_msg.h"
  10 #include "stream.h"
  11 #include "help_mp.h"
  12 #include "m_option.h"
  13 #include "m_struct.h"
  14
  15 static struct stream_priv_s {
  16 } stream_priv_dflts = {
  17 };
  18
  19 #define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
  20 // URL definition
  21 static m_option_t stream_opts_fields[] = {
  22   { NULL, NULL, 0, 0, 0, 0,  NULL }
  23 };
  24
  25 static struct m_struct_st stream_opts = {
  26   "smb",
  27   sizeof(struct stream_priv_s),
  28   &stream_priv_dflts,
  29   stream_opts_fields
  30 };
  31
  32 static char smb_password[15];
  33 static char smb_username[15];
  34
  35 static void smb_auth_fn(const char *server, const char *share,
  36              char *workgroup, int wgmaxlen, char *username, int unmaxlen,
  37              char *password, int pwmaxlen)
  38 {
  39   char temp[128];
  40
  41   strcpy(temp, "LAN");
  42   if (temp[strlen(temp) - 1] == 0x0a)
  43     temp[strlen(temp) - 1] = 0x00;
  44
  45   if (temp[0]) strncpy(workgroup, temp, wgmaxlen - 1);
  46
  47   strcpy(temp, smb_username);
  48   if (temp[strlen(temp) - 1] == 0x0a)
  49     temp[strlen(temp) - 1] = 0x00;
  50
  51   if (temp[0]) strncpy(username, temp, unmaxlen - 1);
  52
  53   strcpy(temp, smb_password);
  54   if (temp[strlen(temp) - 1] == 0x0a)
  55     temp[strlen(temp) - 1] = 0x00;
  56
  57    if (temp[0]) strncpy(password, temp, pwmaxlen - 1);
  58 }
  59
  60 static int seek(stream_t *s,off_t newpos) {
  61   s->pos = newpos;
  62   if(smbc_lseek(s->fd,s->pos,SEEK_SET)<0) {
  63     s->eof=1;
  64     return 0;
  65   }
  66   return 1;
  67 }
  68
  69 static int fill_buffer(stream_t *s, char* buffer, int max_len){
  70   int r = smbc_read(s->fd,buffer,max_len);
  71   return (r <= 0) ? -1 : r;
  72 }
  73
  74 static int write_buffer(stream_t *s, char* buffer, int len) {
  75   int r = smbc_write(s->fd,buffer,len);
  76   return (r <= 0) ? -1 : r;
  77 }
  78
  79 static void close_f(stream_t *s){
  80   smbc_close(s->fd);
  81 }
  82
  83 static int open_f (stream_t *stream, int mode, void *opts, int* file_format) {
  84   struct stream_priv_s *p = (struct stream_priv_s*)opts;
  85   char *filename;
  86   mode_t m = 0;
  87   off_t len;
  88   int fd, err;
  89
  90   filename = stream->url;
  91
  92   if(mode == STREAM_READ)
  93     m = O_RDONLY;
  94   else if (mode == STREAM_WRITE) //who's gonna do that ?
  95     m = O_WRONLY;
  96   else {
  97     mp_msg(MSGT_OPEN, MSGL_ERR, "[smb] Unknown open mode %d\n", mode);
  98     m_struct_free (&stream_opts, opts);
  99     return STREAM_UNSUPORTED;
 100   }
 101
 102   if(!filename) {
 103     mp_msg(MSGT_OPEN,MSGL_ERR, "[smb] Bad url\n");
 104     m_struct_free(&stream_opts, opts);
 105     return STREAM_ERROR;
 106   }
 107
 108   err = smbc_init(smb_auth_fn, 1);
 109   if (err < 0) {
 110     mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_SMBInitError,err);
 111     m_struct_free(&stream_opts, opts);
 112     return STREAM_ERROR;
 113   }
 114
 115   fd = smbc_open(filename, m,0644);
 116   if (fd < 0) {
 117     mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_SMBFileNotFound, filename);
 118     m_struct_free(&stream_opts, opts);
 119     return STREAM_ERROR;
 120   }
 121
 122   len = smbc_lseek(fd,0,SEEK_END);
 123   smbc_lseek (fd, 0, SEEK_SET);
 124   if (len <= 0)
 125     stream->flags = 0;
 126   else {
 127     stream->flags = STREAM_READ | STREAM_SEEK;
 128     stream->end_pos = len;
 129     stream->seek = seek;
 130   }
 131   stream->type = STREAMTYPE_SMB;
 132   stream->fd = fd;
 133   stream->fill_buffer = fill_buffer;
 134   stream->write_buffer = write_buffer;
 135   stream->close = close_f;
 136
 137   m_struct_free(&stream_opts, opts);
 138   return STREAM_OK;
 139 }
 140
 141 stream_info_t stream_info_smb = {
 142   "Server Message Block",
 143   "smb",
 144   "M. Tourne",
 145   "based on the code from 'a bulgarian' (one says)",
 146   open_f,
 147   {"smb", NULL},
 148   &stream_opts,
 149   0 //Url is an option string
 150 };
 151
 152 #endif