Annotation of embedaddon/curl/lib/ftp.h, revision 1.1

1.1     ! misho       1: #ifndef HEADER_CURL_FTP_H
        !             2: #define HEADER_CURL_FTP_H
        !             3: /***************************************************************************
        !             4:  *                                  _   _ ____  _
        !             5:  *  Project                     ___| | | |  _ \| |
        !             6:  *                             / __| | | | |_) | |
        !             7:  *                            | (__| |_| |  _ <| |___
        !             8:  *                             \___|\___/|_| \_\_____|
        !             9:  *
        !            10:  * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
        !            11:  *
        !            12:  * This software is licensed as described in the file COPYING, which
        !            13:  * you should have received as part of this distribution. The terms
        !            14:  * are also available at https://curl.haxx.se/docs/copyright.html.
        !            15:  *
        !            16:  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
        !            17:  * copies of the Software, and permit persons to whom the Software is
        !            18:  * furnished to do so, under the terms of the COPYING file.
        !            19:  *
        !            20:  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
        !            21:  * KIND, either express or implied.
        !            22:  *
        !            23:  ***************************************************************************/
        !            24: 
        !            25: #include "pingpong.h"
        !            26: 
        !            27: #ifndef CURL_DISABLE_FTP
        !            28: extern const struct Curl_handler Curl_handler_ftp;
        !            29: 
        !            30: #ifdef USE_SSL
        !            31: extern const struct Curl_handler Curl_handler_ftps;
        !            32: #endif
        !            33: 
        !            34: CURLcode Curl_ftpsend(struct connectdata *, const char *cmd);
        !            35: CURLcode Curl_GetFTPResponse(ssize_t *nread, struct connectdata *conn,
        !            36:                              int *ftpcode);
        !            37: #endif /* CURL_DISABLE_FTP */
        !            38: 
        !            39: /****************************************************************************
        !            40:  * FTP unique setup
        !            41:  ***************************************************************************/
        !            42: typedef enum {
        !            43:   FTP_STOP,    /* do nothing state, stops the state machine */
        !            44:   FTP_WAIT220, /* waiting for the initial 220 response immediately after
        !            45:                   a connect */
        !            46:   FTP_AUTH,
        !            47:   FTP_USER,
        !            48:   FTP_PASS,
        !            49:   FTP_ACCT,
        !            50:   FTP_PBSZ,
        !            51:   FTP_PROT,
        !            52:   FTP_CCC,
        !            53:   FTP_PWD,
        !            54:   FTP_SYST,
        !            55:   FTP_NAMEFMT,
        !            56:   FTP_QUOTE, /* waiting for a response to a command sent in a quote list */
        !            57:   FTP_RETR_PREQUOTE,
        !            58:   FTP_STOR_PREQUOTE,
        !            59:   FTP_POSTQUOTE,
        !            60:   FTP_CWD,  /* change dir */
        !            61:   FTP_MKD,  /* if the dir didn't exist */
        !            62:   FTP_MDTM, /* to figure out the datestamp */
        !            63:   FTP_TYPE, /* to set type when doing a head-like request */
        !            64:   FTP_LIST_TYPE, /* set type when about to do a dir list */
        !            65:   FTP_RETR_TYPE, /* set type when about to RETR a file */
        !            66:   FTP_STOR_TYPE, /* set type when about to STOR a file */
        !            67:   FTP_SIZE, /* get the remote file's size for head-like request */
        !            68:   FTP_RETR_SIZE, /* get the remote file's size for RETR */
        !            69:   FTP_STOR_SIZE, /* get the size for STOR */
        !            70:   FTP_REST, /* when used to check if the server supports it in head-like */
        !            71:   FTP_RETR_REST, /* when asking for "resume" in for RETR */
        !            72:   FTP_PORT, /* generic state for PORT, LPRT and EPRT, check count1 */
        !            73:   FTP_PRET, /* generic state for PRET RETR, PRET STOR and PRET LIST/NLST */
        !            74:   FTP_PASV, /* generic state for PASV and EPSV, check count1 */
        !            75:   FTP_LIST, /* generic state for LIST, NLST or a custom list command */
        !            76:   FTP_RETR,
        !            77:   FTP_STOR, /* generic state for STOR and APPE */
        !            78:   FTP_QUIT,
        !            79:   FTP_LAST  /* never used */
        !            80: } ftpstate;
        !            81: 
        !            82: struct ftp_parselist_data; /* defined later in ftplistparser.c */
        !            83: 
        !            84: struct ftp_wc {
        !            85:   struct ftp_parselist_data *parser;
        !            86: 
        !            87:   struct {
        !            88:     curl_write_callback write_function;
        !            89:     FILE *file_descriptor;
        !            90:   } backup;
        !            91: };
        !            92: 
        !            93: typedef enum {
        !            94:   FTPFILE_MULTICWD  = 1, /* as defined by RFC1738 */
        !            95:   FTPFILE_NOCWD     = 2, /* use SIZE / RETR / STOR on the full path */
        !            96:   FTPFILE_SINGLECWD = 3  /* make one CWD, then SIZE / RETR / STOR on the
        !            97:                             file */
        !            98: } curl_ftpfile;
        !            99: 
        !           100: /* This FTP struct is used in the Curl_easy. All FTP data that is
        !           101:    connection-oriented must be in FTP_conn to properly deal with the fact that
        !           102:    perhaps the Curl_easy is changed between the times the connection is
        !           103:    used. */
        !           104: struct FTP {
        !           105:   char *path;    /* points to the urlpieces struct field */
        !           106:   char *pathalloc; /* if non-NULL a pointer to an allocated path */
        !           107: 
        !           108:   /* transfer a file/body or not, done as a typedefed enum just to make
        !           109:      debuggers display the full symbol and not just the numerical value */
        !           110:   curl_pp_transfer transfer;
        !           111:   curl_off_t downloadsize;
        !           112: };
        !           113: 
        !           114: 
        !           115: /* ftp_conn is used for struct connection-oriented data in the connectdata
        !           116:    struct */
        !           117: struct ftp_conn {
        !           118:   struct pingpong pp;
        !           119:   char *entrypath; /* the PWD reply when we logged on */
        !           120:   char **dirs;   /* realloc()ed array for path components */
        !           121:   int dirdepth;  /* number of entries used in the 'dirs' array */
        !           122:   char *file;    /* url-decoded file name (or path) */
        !           123:   bool dont_check;  /* Set to TRUE to prevent the final (post-transfer)
        !           124:                        file size and 226/250 status check. It should still
        !           125:                        read the line, just ignore the result. */
        !           126:   bool ctl_valid;   /* Tells Curl_ftp_quit() whether or not to do anything. If
        !           127:                        the connection has timed out or been closed, this
        !           128:                        should be FALSE when it gets to Curl_ftp_quit() */
        !           129:   bool cwddone;     /* if it has been determined that the proper CWD combo
        !           130:                        already has been done */
        !           131:   int cwdcount;     /* number of CWD commands issued */
        !           132:   bool cwdfail;     /* set TRUE if a CWD command fails, as then we must prevent
        !           133:                        caching the current directory */
        !           134:   bool wait_data_conn; /* this is set TRUE if data connection is waited */
        !           135:   char *prevpath;   /* url-decoded conn->path from the previous transfer */
        !           136:   char transfertype; /* set by ftp_transfertype for use by Curl_client_write()a
        !           137:                         and others (A/I or zero) */
        !           138:   int count1; /* general purpose counter for the state machine */
        !           139:   int count2; /* general purpose counter for the state machine */
        !           140:   int count3; /* general purpose counter for the state machine */
        !           141:   ftpstate state; /* always use ftp.c:state() to change state! */
        !           142:   ftpstate state_saved; /* transfer type saved to be reloaded after
        !           143:                            data connection is established */
        !           144:   curl_off_t retr_size_saved; /* Size of retrieved file saved */
        !           145:   char *server_os;     /* The target server operating system. */
        !           146:   curl_off_t known_filesize; /* file size is different from -1, if wildcard
        !           147:                                 LIST parsing was done and wc_statemach set
        !           148:                                 it */
        !           149:   /* newhost is the (allocated) IP addr or host name to connect the data
        !           150:      connection to */
        !           151:   char *newhost;          /* this is the pair to connect the DATA... */
        !           152:   unsigned short newport; /* connection to */
        !           153: };
        !           154: 
        !           155: #define DEFAULT_ACCEPT_TIMEOUT   60000 /* milliseconds == one minute */
        !           156: 
        !           157: #endif /* HEADER_CURL_FTP_H */

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