C++ (Cpp) oggz_index_len примеры использования

Пример #1

Файл: oggz_comments.c Проект: pojala/twentytwenty

int
oggz_comments_decode (OGGZ * oggz, long serialno,
                      unsigned char * comments, long length)
{
    oggz_stream_t * stream;
    char *c= (char *)comments;
    int len, i, nb_fields, n;
    char *end;
    char * name, * value, * nvalue = NULL;
    OggzComment * comment;

    if (length<8)
        return -1;

    end = c+length;
    len=readint(c, 0);

    c+=4;
    if (c+len>end) return -1;

    stream = oggz_get_stream (oggz, serialno);
    if (stream == NULL) return OGGZ_ERR_BAD_SERIALNO;

    /* Vendor */
    nvalue = oggz_strdup_len (c, len);
    if (!nvalue) return -1;
    _oggz_comment_set_vendor (oggz, serialno, nvalue);
    if (nvalue) oggz_free (nvalue);
#ifdef DEBUG
    fwrite(c, 1, len, stderr);
    fputc ('\n', stderr);
#endif
    c+=len;

    if (c+4>end) return -1;

    nb_fields=readint(c, 0);
    c+=4;
    for (i=0; i<nb_fields; i++) {
        if (c+4>end) return -1;

        len=readint(c, 0);

        c+=4;
        if (c+len>end) return -1;

        name = c;
        value = oggz_index_len (c, '=', len);
        if (value) {
            *value = '\0';
            value++;

            n = c+len - value;
            nvalue = oggz_strdup_len (value, n);
#ifdef DEBUG
            printf ("oggz_comments_decode: %s -> %s (length %d)\n",
                    name, nvalue, n);
#endif
            comment = oggz_comment_new (name, nvalue);
            _oggz_comment_add (stream, comment);
            oggz_free (nvalue);
        } else {
            nvalue = oggz_strdup_len (name, len);
            comment = oggz_comment_new (nvalue, NULL);
            _oggz_comment_add (stream, comment);
            oggz_free (nvalue);
        }

        c+=len;
    }

#ifdef DEBUG
    printf ("oggz_comments_decode: done\n");
#endif

    return 0;
}

Пример #2

Файл: oggz_comments.c Проект: SmarterApp/SB_MobileSecureBrowser-iOS

int
oggz_comments_decode (OGGZ * oggz, long serialno,
                      unsigned char * comments, long length)
{
   oggz_stream_t * stream;
   char *c= (char *)comments;
   int i, nb_fields, n;
   size_t len;
   char *end;
   char * name, * value, * nvalue = NULL;
   OggzComment * comment;

   if (length<8)
      return -1;

   end = c+length;
   len=readint(c, 0);

   c+=4;
   if (len>(size_t)(end-c)) return -1;

   stream = oggz_get_stream (oggz, serialno);
   if (stream == NULL) return OGGZ_ERR_BAD_SERIALNO;

   /* Vendor */
   if (len > 0) {
     if ((nvalue = oggz_strdup_len (c, len)) == NULL)
       return OGGZ_ERR_OUT_OF_MEMORY;

     if (_oggz_comment_set_vendor (oggz, serialno, nvalue) == OGGZ_ERR_OUT_OF_MEMORY) {
       oggz_free (nvalue);
       return OGGZ_ERR_OUT_OF_MEMORY;
     }

     oggz_free (nvalue);
   }

#ifdef DEBUG
   fwrite(c, 1, len, stderr); fputc ('\n', stderr);
#endif
   c+=len;

   if (c+4>end) return -1;

   /* This value gets checked effectively by the 'for' condition
      and the checks within the loop for c running off the end.  */
   nb_fields=readint(c, 0);
   c+=4;
   for (i=0;i<nb_fields;i++) {
      if (c+4>end) return -1;

      len=readint(c, 0);

      c+=4;
      if (len>(size_t)(end-c)) return -1;

      n = 0;
      name = c;
      value = oggz_index_len (c, '=', len);
      if (value) {
         *value = '\0';
         value++;
         n = c+len - value;
      }

      if (n != 0) {
         if ((nvalue = oggz_strdup_len (value, n)) == NULL)
           return OGGZ_ERR_OUT_OF_MEMORY;

#ifdef DEBUG
         printf ("oggz_comments_decode: [%d] %s -> %s (length %d)\n",
         i, name, nvalue, n);
#endif
         if (_oggz_comment_add_byname (stream, name, nvalue) == NULL) {
           oggz_free (nvalue);
           return OGGZ_ERR_OUT_OF_MEMORY;
	 }

         oggz_free (nvalue);
      } else {
        /* For the case of a comment which is not in key=value form,
         * duplicate exactly the length of the comment, as it is
         * not NUL-terminated. In the case of the last comment of the
         * packet, it will be followed immediately by a framing bit.
         */
         if ((nvalue = oggz_strdup_len (name, len)) == NULL)
           return OGGZ_ERR_OUT_OF_MEMORY;

#ifdef DEBUG
         printf ("oggz_comments_decode: [%d] %s (no value) (length %d)\n",
         i, nvalue, len);
#endif

         if (_oggz_comment_add_byname (stream, nvalue, NULL) == NULL) {
           oggz_free (nvalue);
           return OGGZ_ERR_OUT_OF_MEMORY;
	 }

         oggz_free (nvalue);
      }

      c+=len;
   }

#ifdef DEBUG
   printf ("oggz_comments_decode: done\n");
#endif

   return 0;
}