/*
* file_connect() gets called from Curl_protocol_connect() to allow us to
* do protocol-specific actions at connect-time. We emulate a
* connect-then-transfer protocol and "connect" to the file here
*/
static CURLcode file_connect(struct connectdata *conn, bool *done)
{
struct SessionHandle *data = conn->data;
char *real_path = curl_easy_unescape(data, data->state.path, 0, NULL);
struct FILEPROTO *file;
int fd;
#ifdef DOS_FILESYSTEM
int i;
char *actual_path;
#endif
if(!real_path)
return CURLE_OUT_OF_MEMORY;
/* If there already is a protocol-specific struct allocated for this
sessionhandle, deal with it */
Curl_reset_reqproto(conn);
if(!data->state.proto.file) {
file = calloc(sizeof(struct FILEPROTO), 1);
if(!file) {
free(real_path);
return CURLE_OUT_OF_MEMORY;
}
data->state.proto.file = file;
}
else {
/* file is not a protocol that can deal with "persistancy" */
file = data->state.proto.file;
Curl_safefree(file->freepath);
if(file->fd != -1)
close(file->fd);
file->path = NULL;
file->freepath = NULL;
file->fd = -1;
}
#ifdef DOS_FILESYSTEM
/* If the first character is a slash, and there's
something that looks like a drive at the beginning of
the path, skip the slash. If we remove the initial
slash in all cases, paths without drive letters end up
relative to the current directory which isn't how
browsers work.
Some browsers accept | instead of : as the drive letter
separator, so we do too.
On other platforms, we need the slash to indicate an
absolute pathname. On Windows, absolute paths start
with a drive letter.
*/
actual_path = real_path;
if((actual_path[0] == '/') &&
actual_path[1] &&
(actual_path[2] == ':' || actual_path[2] == '|'))
{
actual_path[2] = ':';
actual_path++;
}
/* change path separators from '/' to '\\' for DOS, Windows and OS/2 */
for (i=0; actual_path[i] != '\0'; ++i)
if(actual_path[i] == '/')
actual_path[i] = '\\';
fd = open_readonly(actual_path, O_RDONLY|O_BINARY); /* no CR/LF translation */
file->path = actual_path;
#else
fd = open_readonly(real_path, O_RDONLY);
file->path = real_path;
#endif
file->freepath = real_path; /* free this when done */
file->fd = fd;
if(!data->set.upload && (fd == -1)) {
failf(data, "Couldn't open file %s", data->state.path);
file_done(conn, CURLE_FILE_COULDNT_READ_FILE, FALSE);
return CURLE_FILE_COULDNT_READ_FILE;
}
*done = TRUE;
return CURLE_OK;
}
/*
* file_connect() gets called from Curl_protocol_connect() to allow us to
* do protocol-specific actions at connect-time. We emulate a
* connect-then-transfer protocol and "connect" to the file here
*/
static CURLcode file_connect(struct connectdata *conn, bool *done)
{
struct SessionHandle *data = conn->data;
char *real_path;
struct FILEPROTO *file = data->req.protop;
int fd;
#ifdef DOS_FILESYSTEM
int i;
char *actual_path;
#endif
int real_path_len;
real_path = curl_easy_unescape(data, data->state.path, 0, &real_path_len);
if(!real_path)
return CURLE_OUT_OF_MEMORY;
#ifdef DOS_FILESYSTEM
/* If the first character is a slash, and there's
something that looks like a drive at the beginning of
the path, skip the slash. If we remove the initial
slash in all cases, paths without drive letters end up
relative to the current directory which isn't how
browsers work.
Some browsers accept | instead of : as the drive letter
separator, so we do too.
On other platforms, we need the slash to indicate an
absolute pathname. On Windows, absolute paths start
with a drive letter.
*/
actual_path = real_path;
if((actual_path[0] == '/') &&
actual_path[1] &&
(actual_path[2] == ':' || actual_path[2] == '|')) {
actual_path[2] = ':';
actual_path++;
real_path_len--;
}
/* change path separators from '/' to '\\' for DOS, Windows and OS/2 */
for(i=0; i < real_path_len; ++i)
if(actual_path[i] == '/')
actual_path[i] = '\\';
else if(!actual_path[i]) /* binary zero */
return CURLE_URL_MALFORMAT;
fd = open_readonly(actual_path, O_RDONLY|O_BINARY);
file->path = actual_path;
#else
if(memchr(real_path, 0, real_path_len))
/* binary zeroes indicate foul play */
return CURLE_URL_MALFORMAT;
fd = open_readonly(real_path, O_RDONLY);
file->path = real_path;
#endif
file->freepath = real_path; /* free this when done */
file->fd = fd;
if(!data->set.upload && (fd == -1)) {
failf(data, "Couldn't open file %s", data->state.path);
file_done(conn, CURLE_FILE_COULDNT_READ_FILE, FALSE);
return CURLE_FILE_COULDNT_READ_FILE;
}
*done = TRUE;
return CURLE_OK;
}
