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Annotation of embedaddon/curl/lib/smtp.h, revision 1.1.1.1

1.1       misho       1: #ifndef HEADER_CURL_SMTP_H
                      2: #define HEADER_CURL_SMTP_H
                      3: /***************************************************************************
                      4:  *                                  _   _ ____  _
                      5:  *  Project                     ___| | | |  _ \| |
                      6:  *                             / __| | | | |_) | |
                      7:  *                            | (__| |_| |  _ <| |___
                      8:  *                             \___|\___/|_| \_\_____|
                      9:  *
                     10:  * Copyright (C) 2009 - 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: #include "curl_sasl.h"
                     27: 
                     28: /****************************************************************************
                     29:  * SMTP unique setup
                     30:  ***************************************************************************/
                     31: typedef enum {
                     32:   SMTP_STOP,        /* do nothing state, stops the state machine */
                     33:   SMTP_SERVERGREET, /* waiting for the initial greeting immediately after
                     34:                        a connect */
                     35:   SMTP_EHLO,
                     36:   SMTP_HELO,
                     37:   SMTP_STARTTLS,
                     38:   SMTP_UPGRADETLS,  /* asynchronously upgrade the connection to SSL/TLS
                     39:                        (multi mode only) */
                     40:   SMTP_AUTH,
                     41:   SMTP_COMMAND,     /* VRFY, EXPN, NOOP, RSET and HELP */
                     42:   SMTP_MAIL,        /* MAIL FROM */
                     43:   SMTP_RCPT,        /* RCPT TO */
                     44:   SMTP_DATA,
                     45:   SMTP_POSTDATA,
                     46:   SMTP_QUIT,
                     47:   SMTP_LAST         /* never used */
                     48: } smtpstate;
                     49: 
                     50: /* This SMTP struct is used in the Curl_easy. All SMTP data that is
                     51:    connection-oriented must be in smtp_conn to properly deal with the fact that
                     52:    perhaps the Curl_easy is changed between the times the connection is
                     53:    used. */
                     54: struct SMTP {
                     55:   curl_pp_transfer transfer;
                     56:   char *custom;            /* Custom Request */
                     57:   struct curl_slist *rcpt; /* Recipient list */
                     58:   bool rcpt_had_ok;        /* Whether any of RCPT TO commands (depends on
                     59:                               total number of recipients) succeeded so far */
                     60:   int rcpt_last_error;     /* The last error received for RCPT TO command */
                     61:   size_t eob;              /* Number of bytes of the EOB (End Of Body) that
                     62:                               have been received so far */
                     63:   bool trailing_crlf;      /* Specifies if the tailing CRLF is present */
                     64: };
                     65: 
                     66: /* smtp_conn is used for struct connection-oriented data in the connectdata
                     67:    struct */
                     68: struct smtp_conn {
                     69:   struct pingpong pp;
                     70:   smtpstate state;         /* Always use smtp.c:state() to change state! */
                     71:   bool ssldone;            /* Is connect() over SSL done? */
                     72:   char *domain;            /* Client address/name to send in the EHLO */
                     73:   struct SASL sasl;        /* SASL-related storage */
                     74:   bool tls_supported;      /* StartTLS capability supported by server */
                     75:   bool size_supported;     /* If server supports SIZE extension according to
                     76:                               RFC 1870 */
                     77:   bool utf8_supported;     /* If server supports SMTPUTF8 extension according
                     78:                               to RFC 6531 */
                     79:   bool auth_supported;     /* AUTH capability supported by server */
                     80: };
                     81: 
                     82: extern const struct Curl_handler Curl_handler_smtp;
                     83: extern const struct Curl_handler Curl_handler_smtps;
                     84: 
                     85: /* this is the 5-bytes End-Of-Body marker for SMTP */
                     86: #define SMTP_EOB "\x0d\x0a\x2e\x0d\x0a"
                     87: #define SMTP_EOB_LEN 5
                     88: #define SMTP_EOB_FIND_LEN 3
                     89: 
                     90: /* if found in data, replace it with this string instead */
                     91: #define SMTP_EOB_REPL "\x0d\x0a\x2e\x2e"
                     92: #define SMTP_EOB_REPL_LEN 4
                     93: 
                     94: CURLcode Curl_smtp_escape_eob(struct connectdata *conn, const ssize_t nread);
                     95: 
                     96: #endif /* HEADER_CURL_SMTP_H */