pathutils.c

Media transfer protocol implementation on POSIX. Have detailed readme on how to move to windows

#include "common.h"
#include "string.h"
#include "pathutils.h"
#include <libgen.h>

/* Find the folder_id of a given path
 * Runs by walking through folders structure */
int
lookup_folder_id (LIBMTP_folder_t * folder, char * path, char * parent)
{
  if (strcmp(path,"/")==0)
    return 0;
  int ret = -1;
  if (folder == NULL) {
    return ret;
  }
  char * current = malloc (strlen(parent) + strlen(folder->name) + 2);
  sprintf(current,"%s/%s",parent,folder->name);
  if (strcasecmp (path, current) == 0) {
    free (current);
    return folder->folder_id;
  }
  if (strncasecmp (path, current, strlen (current)) == 0) {
    ret = lookup_folder_id (folder->child, path, current);
  }
  free (current);
  if (ret >= 0) {
    return ret;
  }
  ret = lookup_folder_id (folder->sibling, path, parent);
  return ret;
}

/* Parses a string to find item_id */
int
parse_path (char * path, LIBMTP_file_t * files, LIBMTP_folder_t * folders)
{
  // Check if path is an item_id
  if (*path != '/') {
    int item_id = atoi(path);
    return item_id;
  }
  // Check if path is a folder
  int item_id = lookup_folder_id(folders,path,"");
  if (item_id == -1) {
    char * dirc = strdup(path);
    char * basec = strdup(path);
    char * parent = dirname(dirc);
    char * filename = basename(basec);

    //int len = strlen(strrchr(path,'/'));
    //char * filename = malloc(len);
    //int index = strlen (path) - len;
    //filename = strncpy (filename, &path[index+1],len);
    //char * parent = malloc(index);
    //parent = strncpy(parent, path, index);
    //parent[index] = '\0';
    int parent_id = lookup_folder_id(folders,parent,"");
    LIBMTP_file_t * file;
    file = files;
    while (file != NULL) {
      if (file->parent_id == parent_id) {
        if (strcasecmp (file->filename, filename) == 0) {
          int item_id = file->item_id;
          return item_id;
        }
      }
      file = file->next;
    }
  } else {
    return item_id;
  }

  return -1;
}

int progress (u_int64_t const sent, u_int64_t const total, void const * const data)
{
  int percent = (sent*100)/total;
#ifdef __WIN32__
  printf("Progress: %I64u of %I64u (%d%%)\r", sent, total, percent);
#else
  printf("Progress: %llu of %llu (%d%%)\r", sent, total, percent);
#endif
  fflush(stdout);
  return 0;
}

/* Find the file type based on extension */
LIBMTP_filetype_t
find_filetype (const char * filename)
{
    char *ptype;
    ptype = rindex(filename,'.')+1;
    LIBMTP_filetype_t filetype;
    /* This need to be kept constantly updated as new file types arrive. */
    if (!strcasecmp (ptype, "wav")) {
        filetype = LIBMTP_FILETYPE_WAV;
    } else if (!strcasecmp (ptype, "mp3")) {
        filetype = LIBMTP_FILETYPE_MP3;
    } else if (!strcasecmp (ptype, "wma")) {
        filetype = LIBMTP_FILETYPE_WMA;
    } else if (!strcasecmp (ptype, "ogg")) {
        filetype = LIBMTP_FILETYPE_OGG;
    } else if (!strcasecmp (ptype, "mp4")) {
        filetype = LIBMTP_FILETYPE_MP4;
    } else if (!strcasecmp (ptype, "wmv")) {
        filetype = LIBMTP_FILETYPE_WMV;
    } else if (!strcasecmp (ptype, "avi")) {
        filetype = LIBMTP_FILETYPE_AVI;
    } else if (!strcasecmp (ptype, "mpeg") || !strcasecmp (ptype, "mpg")) {
        filetype = LIBMTP_FILETYPE_MPEG;
    } else if (!strcasecmp (ptype, "asf")) {
        filetype = LIBMTP_FILETYPE_ASF;
    } else if (!strcasecmp (ptype, "qt") || !strcasecmp (ptype, "mov")) {
        filetype = LIBMTP_FILETYPE_QT;
    } else if (!strcasecmp (ptype, "wma")) {
        filetype = LIBMTP_FILETYPE_WMA;
    } else if (!strcasecmp (ptype, "jpg") || !strcasecmp (ptype, "jpeg")) {
        filetype = LIBMTP_FILETYPE_JPEG;
    } else if (!strcasecmp (ptype, "jfif")) {
        filetype = LIBMTP_FILETYPE_JFIF;
    } else if (!strcasecmp (ptype, "tif") || !strcasecmp (ptype, "tiff")) {
        filetype = LIBMTP_FILETYPE_TIFF;
    } else if (!strcasecmp (ptype, "bmp")) {
        filetype = LIBMTP_FILETYPE_BMP;
    } else if (!strcasecmp (ptype, "gif")) {
        filetype = LIBMTP_FILETYPE_GIF;
    } else if (!strcasecmp (ptype, "pic") || !strcasecmp (ptype, "pict")) {
        filetype = LIBMTP_FILETYPE_PICT;
    } else if (!strcasecmp (ptype, "png")) {
        filetype = LIBMTP_FILETYPE_PNG;
    } else if (!strcasecmp (ptype, "wmf")) {
        filetype = LIBMTP_FILETYPE_WINDOWSIMAGEFORMAT;
    } else if (!strcasecmp (ptype, "ics")) {
        filetype = LIBMTP_FILETYPE_VCALENDAR2;
    } else if (!strcasecmp (ptype, "exe") || !strcasecmp (ptype, "com") ||
               !strcasecmp (ptype, "bat") || !strcasecmp (ptype, "dll") ||
               !strcasecmp (ptype, "sys")) {
        filetype = LIBMTP_FILETYPE_WINEXEC;
    } else {
        /* Tagging as unknown file type */
        filetype = LIBMTP_FILETYPE_UNKNOWN;
    }
printf("type:%s,%d\n",ptype,filetype);
    return filetype;
}

/* Function that compensate for missing libgen.h on Windows */
#ifndef HAVE_LIBGEN_H
static char *basename(char *in) {
  char *p;
  if (in == NULL)
    return NULL;
  p = in + strlen(in) - 1;
  while (*p != '\\' && *p != '/' && *p != ':')
    { p--; }
  return ++p;
}
#endif