package/fonera-mp3/src/lib/mp3_misc.c

   1 /*
   2 * FOXMP3
   3 * Copyright (c) 2006 acmesystems.it - john@acmesystems.it
   4 *
   5 * This program is free software; you can redistribute it and/or modify
   6 * it under the terms of the GNU General Public License as published by
   7 * the Free Software Foundation; either version 2 of the License, or
   8 * (at your option) any later version.
   9 *
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13 * GNU General Public License for more details.
  14 *
  15 * You should have received a copy of the GNU General Public License
  16 * along with this program; if not, write to the Free Software
  17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA02111-1307USA
  18 *
  19 * Feedback, Bugs...  info@acmesystems.it
  20 *
  21 */
  22
  23
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <unistd.h>
  27 #include <stdlib.h>
  28 #include <sys/wait.h>
  29 #include <sys/types.h>
  30 #include <sys/stat.h>
  31
  32 #include "mp3.h"
  33
  34 #define TMP_PLS_NAME "/var/tmp.pls"
  35
  36 char* mp3_shell_run(char *filename, char **args, char *buffer, int length){
  37         int fd1[2], fd2[2], l;
  38         if((pipe(fd1) !=0)  || (pipe(fd2)!=0)){
  39                 return NULL;
  40         }
  41         if (fork() == 0){
  42                 close(fd1[1]);
  43                 close(fd2[0]);
  44                 if ((dup2(fd1[0], STDIN_FILENO) == -1)
  45                         || (dup2(fd2[1], STDOUT_FILENO) == -1)){
  46                         exit(0);
  47                 }
  48                 close(fd1[0]);
  49                 close(fd2[1]);
  50                 execvp(filename, args);
  51                 printf("ERROR running : %s\n", filename);
  52                 exit(0);
  53         }
  54         memset(buffer,'\0',length);
  55         close(fd1[0]);
  56         close(fd2[1]);
  57         close(fd1[1]);
  58         wait(NULL);
  59         if((l = read(fd2[0], buffer, length -1)) == -1){
  60                 printf("read failed");
  61                 return NULL;
  62         }
  63         buffer[l] = '\0';
  64         close (fd2[2]);
  65         return buffer;
  66 }
  67
  68 int mp3_pls_get_info(unsigned char *pls_url, unsigned char *url,
  69                 unsigned char *path, unsigned int *port){
  70         int ret = MP3_ERROR;
  71         char *exec_args[6];
  72         int i;
  73         remove(TMP_PLS_NAME);
  74         for (i = 0; i < 5; i++){
  75                 exec_args[i] = malloc(2048);
  76         }
  77         exec_args[0][0] = '\0';
  78         strcpy(exec_args[1], "wget");
  79         strcpy(exec_args[2], pls_url);
  80         strcpy(exec_args[3], "-O");
  81         strcpy(exec_args[4], TMP_PLS_NAME);
  82         exec_args[5] = NULL;
  83         printf("Getting pls file --> %s \n", exec_args[2]);
  84         if(mp3_shell_run("wget", &exec_args[1],
  85                                 exec_args[0], 2048)){
  86                 struct stat s;
  87                 stat(TMP_PLS_NAME, &s);
  88                 if(s.st_size > 0){
  89                         FILE *fp = fopen(TMP_PLS_NAME, "r");
  90                         if(fp > 0){
  91                                 unsigned char *data = malloc(2048);
  92                                 *url = '\0';
  93                                 while((!*url) && (!feof(fp))){
  94                                         if(fgets(data, 2048, fp) != NULL){
  95                                                 if(strstr(data, "File")){
  96                                                         unsigned char *t = strstr(data, "=");
  97                                                         if(t){
  98                                                                 t++;
  99                                                                 if(mp3_stream_parse_url(t, url,
 100                                                                         path, port) != MP3_OK){
 101                                                                         *url = '\0';
 102                                                                 }
 103                                                         }
 104                                                 }
 105                                         }
 106                                 }
 107                                 fclose(fp);
 108                                 free(data);
 109                                 if(*url){
 110                                         ret = MP3_OK;
 111                                 }
 112                         }
 113                 }
 114         } else {
 115                 printf("WGET error\n");
 116         }
 117         for (i = 0; i < 5; i++){
 118                 free(exec_args[i]);
 119         }
 120         if(ret == MP3_OK){
 121                 printf("Found file valid file in pls\n");
 122         } else {
 123                 printf("Error whilst parsing pls\n");
 124         }
 125         return ret;
 126 }
 127
 128
 129