| #ifndef HEADER_CURL_FTP_H |
| #define HEADER_CURL_FTP_H |
| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) 1998 - 2020, 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 https://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 |
| |
| CURLcode Curl_ftpsend(struct connectdata *, const char *cmd); |
| 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 { |
| 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 Curl_easy. All FTP data that is |
| connection-oriented must be in FTP_conn to properly deal with the fact that |
| perhaps the Curl_easy is changed between the times the connection is |
| used. */ |
| struct FTP { |
| char *path; /* points to the urlpieces struct field */ |
| char *pathalloc; /* if non-NULL a pointer to an allocated path */ |
| |
| /* 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 */ |
| char *file; /* url-decoded file name (or path) */ |
| 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 */ |
| int cwdcount; /* number of CWD commands issued */ |
| 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; /* url-decoded 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 */ |
