int
oggz_comment_add_byname (OGGZ * oggz, long serialno,
const char * name, const char * value)
{
oggz_stream_t * stream;
OggzComment * new_comment;
if (oggz == NULL) return OGGZ_ERR_BAD_OGGZ;
stream = oggz_get_stream (oggz, serialno);
if (stream == NULL) stream = oggz_add_stream (oggz, serialno);
if (oggz->flags & OGGZ_WRITE) {
if (OGGZ_CONFIG_WRITE) {
if (!oggz_comment_validate_byname (name, value))
return OGGZ_ERR_COMMENT_INVALID;
new_comment = oggz_comment_new (name, value);
_oggz_comment_add (stream, new_comment);
return 0;
} else {
return OGGZ_ERR_DISABLED;
}
} else {
return OGGZ_ERR_INVALID;
}
}
const OggzComment *
oggz_comment_first_byname (OGGZ * oggz, long serialno, char * name)
{
oggz_stream_t * stream;
OggzComment * comment;
int i;
if (oggz == NULL) return NULL;
stream = oggz_get_stream (oggz, serialno);
if (stream == NULL) return NULL;
if (name == NULL) return oggz_vector_nth_p (stream->comments, 0);
if (!oggz_comment_validate_byname (name, ""))
return NULL;
for (i = 0; i < oggz_vector_size (stream->comments); i++) {
comment = (OggzComment *) oggz_vector_nth_p (stream->comments, i);
if (comment->name && !strcasecmp (name, comment->name))
return comment;
}
return NULL;
}
int
oggz_comment_add (OGGZ * oggz, long serialno, const OggzComment * comment)
{
oggz_stream_t * stream;
OggzComment * new_comment;
if (oggz == NULL) return OGGZ_ERR_BAD_OGGZ;
stream = oggz_get_stream (oggz, serialno);
if (stream == NULL)
stream = oggz_add_stream (oggz, serialno);
if (stream == NULL)
return OGGZ_ERR_OUT_OF_MEMORY;
if (oggz->flags & OGGZ_WRITE) {
if (OGGZ_CONFIG_WRITE) {
if (!oggz_comment_validate_byname (comment->name))
return OGGZ_ERR_COMMENT_INVALID;
if (_oggz_comment_add_byname (stream, comment->name, comment->value) == NULL)
return OGGZ_ERR_OUT_OF_MEMORY;
return 0;
} else {
return OGGZ_ERR_DISABLED;
}
} else {
return OGGZ_ERR_INVALID;
}
}
static OggzComment *
oggz_comment_new (const char * name, const char * value)
{
OggzComment * comment;
if (!oggz_comment_validate_byname (name)) return NULL;
/* Ensures that name != NULL and contains only valid characters */
comment = oggz_malloc (sizeof (OggzComment));
if (comment == NULL) return NULL;
comment->name = oggz_strdup (name);
if (comment->name == NULL) {
oggz_free (comment);
return NULL;
}
if (value) {
comment->value = oggz_strdup (value);
if (comment->value == NULL) {
oggz_free (comment->name);
oggz_free (comment);
return NULL;
}
} else {
comment->value = NULL;
}
return comment;
}
static OggzComment *
oggz_comment_new (const char * name, const char * value)
{
OggzComment * comment;
if (!oggz_comment_validate_byname (name, value)) return NULL;
comment = oggz_malloc (sizeof (OggzComment));
comment->name = oggz_strdup (name);
comment->value = oggz_strdup (value);
return comment;
}
