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+#ifndef HEADER_CURL_FTP_H
+#define HEADER_CURL_FTP_H
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#include "pingpong.h"
+
+#ifndef CURL_DISABLE_FTP
+extern const struct Curl_handler Curl_handler_ftp;
+
+#ifdef USE_SSL
+extern const struct Curl_handler Curl_handler_ftps;
+#endif
+
+CURL_STATIC CURLcode Curl_ftpsendf(struct connectdata *, const char *fmt, ...);
+CURL_STATIC CURLcode Curl_GetFTPResponse(ssize_t *nread, struct connectdata *conn,
+ int *ftpcode);
+#endif /* CURL_DISABLE_FTP */
+
+/****************************************************************************
+ * FTP unique setup
+ ***************************************************************************/
+typedef enum {
+ FTP_STOP, /* do nothing state, stops the state machine */
+ FTP_WAIT220, /* waiting for the initial 220 response immediately after
+ a connect */
+ FTP_AUTH,
+ FTP_USER,
+ FTP_PASS,
+ FTP_ACCT,
+ FTP_PBSZ,
+ FTP_PROT,
+ FTP_CCC,
+ FTP_PWD,
+ FTP_SYST,
+ FTP_NAMEFMT,
+ FTP_QUOTE, /* waiting for a response to a command sent in a quote list */
+ FTP_RETR_PREQUOTE,
+ FTP_STOR_PREQUOTE,
+ FTP_POSTQUOTE,
+ FTP_CWD, /* change dir */
+ FTP_MKD, /* if the dir didn't exist */
+ FTP_MDTM, /* to figure out the datestamp */
+ FTP_TYPE, /* to set type when doing a head-like request */
+ FTP_LIST_TYPE, /* set type when about to do a dir list */
+ FTP_RETR_TYPE, /* set type when about to RETR a file */
+ FTP_STOR_TYPE, /* set type when about to STOR a file */
+ FTP_SIZE, /* get the remote file's size for head-like request */
+ FTP_RETR_SIZE, /* get the remote file's size for RETR */
+ FTP_STOR_SIZE, /* get the size for STOR */
+ FTP_REST, /* when used to check if the server supports it in head-like */
+ FTP_RETR_REST, /* when asking for "resume" in for RETR */
+ FTP_PORT, /* generic state for PORT, LPRT and EPRT, check count1 */
+ FTP_PRET, /* generic state for PRET RETR, PRET STOR and PRET LIST/NLST */
+ FTP_PASV, /* generic state for PASV and EPSV, check count1 */
+ FTP_LIST, /* generic state for LIST, NLST or a custom list command */
+ FTP_RETR,
+ FTP_STOR, /* generic state for STOR and APPE */
+ FTP_QUIT,
+ FTP_LAST /* never used */
+} ftpstate;
+
+struct ftp_parselist_data; /* defined later in ftplistparser.c */
+
+struct ftp_wc_tmpdata {
+ struct ftp_parselist_data *parser;
+
+ struct {
+ curl_write_callback write_function;
+ FILE *file_descriptor;
+ } backup;
+};
+
+typedef enum {
+ FTPFILE_MULTICWD = 1, /* as defined by RFC1738 */
+ FTPFILE_NOCWD = 2, /* use SIZE / RETR / STOR on the full path */
+ FTPFILE_SINGLECWD = 3 /* make one CWD, then SIZE / RETR / STOR on the
+ file */
+} curl_ftpfile;
+
+/* This FTP struct is used in the SessionHandle. All FTP data that is
+ connection-oriented must be in FTP_conn to properly deal with the fact that
+ perhaps the SessionHandle is changed between the times the connection is
+ used. */
+struct FTP {
+ curl_off_t *bytecountp;
+ char *user; /* user name string */
+ char *passwd; /* password string */
+
+ /* transfer a file/body or not, done as a typedefed enum just to make
+ debuggers display the full symbol and not just the numerical value */
+ curl_pp_transfer transfer;
+ curl_off_t downloadsize;
+};
+
+
+/* ftp_conn is used for struct connection-oriented data in the connectdata
+ struct */
+struct ftp_conn {
+ struct pingpong pp;
+ char *entrypath; /* the PWD reply when we logged on */
+ char **dirs; /* realloc()ed array for path components */
+ int dirdepth; /* number of entries used in the 'dirs' array */
+ int diralloc; /* number of entries allocated for the 'dirs' array */
+ char *file; /* decoded file */
+ bool dont_check; /* Set to TRUE to prevent the final (post-transfer)
+ file size and 226/250 status check. It should still
+ read the line, just ignore the result. */
+ bool ctl_valid; /* Tells Curl_ftp_quit() whether or not to do anything. If
+ the connection has timed out or been closed, this
+ should be FALSE when it gets to Curl_ftp_quit() */
+ bool cwddone; /* if it has been determined that the proper CWD combo
+ already has been done */
+ bool cwdfail; /* set TRUE if a CWD command fails, as then we must prevent
+ caching the current directory */
+ bool wait_data_conn; /* this is set TRUE if data connection is waited */
+ char *prevpath; /* conn->path from the previous transfer */
+ char transfertype; /* set by ftp_transfertype for use by Curl_client_write()a
+ and others (A/I or zero) */
+ int count1; /* general purpose counter for the state machine */
+ int count2; /* general purpose counter for the state machine */
+ int count3; /* general purpose counter for the state machine */
+ ftpstate state; /* always use ftp.c:state() to change state! */
+ ftpstate state_saved; /* transfer type saved to be reloaded after
+ data connection is established */
+ curl_off_t retr_size_saved; /* Size of retrieved file saved */
+ char * server_os; /* The target server operating system. */
+ curl_off_t known_filesize; /* file size is different from -1, if wildcard
+ LIST parsing was done and wc_statemach set
+ it */
+ /* newhost is the (allocated) IP addr or host name to connect the data
+ connection to */
+ char *newhost; /* this is the pair to connect the DATA... */
+ unsigned short newport; /* connection to */
+
+};
+
+#define DEFAULT_ACCEPT_TIMEOUT 60000 /* milliseconds == one minute */
+
+#endif /* HEADER_CURL_FTP_H */