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/* $OpenBSD: esc.c,v 1.5 2016/09/03 22:16:39 gilles Exp $ */ |
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/* |
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* Copyright (c) 2014 Gilles Chehade <gilles@poolp.org> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <sys/queue.h> |
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#include <sys/tree.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <netdb.h> |
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#include <stdio.h> |
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#include <limits.h> |
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#include "smtpd-defines.h" |
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#include "smtpd-api.h" |
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static struct escode { |
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enum enhanced_status_code code; |
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const char *description; |
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} esc[] = { |
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/* 0.0 */ |
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{ ESC_OTHER_STATUS, "Other/Undefined" }, |
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/* 1.x */ |
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{ ESC_OTHER_ADDRESS_STATUS, "Other/Undefined address status" }, |
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{ ESC_BAD_DESTINATION_MAILBOX_ADDRESS, "Bad destination mailbox address" }, |
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{ ESC_BAD_DESTINATION_SYSTEM_ADDRESS, "Bad destination system address" }, |
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{ ESC_BAD_DESTINATION_MAILBOX_ADDRESS_SYNTAX, "Bad destination mailbox address syntax" }, |
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{ ESC_DESTINATION_MAILBOX_ADDRESS_AMBIGUOUS, "Destination mailbox address ambiguous" }, |
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{ ESC_DESTINATION_ADDRESS_VALID, "Destination address valid" }, |
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{ ESC_DESTINATION_MAILBOX_HAS_MOVED, "Destination mailbox has moved, No forwarding address" }, |
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{ ESC_BAD_SENDER_MAILBOX_ADDRESS_SYNTAX, "Bad sender's mailbox address syntax" }, |
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{ ESC_BAD_SENDER_SYSTEM_ADDRESS, "Bad sender's system address syntax" }, |
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/* 2.x */ |
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{ ESC_OTHER_MAILBOX_STATUS, "Other/Undefined mailbox status" }, |
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{ ESC_MAILBOX_DISABLED, "Mailbox disabled, not accepting messages" }, |
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{ ESC_MAILBOX_FULL, "Mailbox full" }, |
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{ ESC_MESSAGE_LENGTH_TOO_LARGE, "Message length exceeds administrative limit" }, |
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{ ESC_MAILING_LIST_EXPANSION_PROBLEM, "Mailing list expansion problem" }, |
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/* 3.x */ |
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{ ESC_OTHER_MAIL_SYSTEM_STATUS, "Other/Undefined mail system status" }, |
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{ ESC_MAIL_SYSTEM_FULL, "Mail system full" }, |
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{ ESC_SYSTEM_NOT_ACCEPTING_MESSAGES, "System not accepting network messages" }, |
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{ ESC_SYSTEM_NOT_CAPABLE_OF_SELECTED_FEATURES, "System not capable of selected features" }, |
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{ ESC_MESSAGE_TOO_BIG_FOR_SYSTEM, "Message too big for system" }, |
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{ ESC_SYSTEM_INCORRECTLY_CONFIGURED, "System incorrectly configured" }, |
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/* 4.x */ |
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{ ESC_OTHER_NETWORK_ROUTING_STATUS, "Other/Undefined network or routing status" }, |
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{ ESC_NO_ANSWER_FROM_HOST, "No answer from host" }, |
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{ ESC_BAD_CONNECTION, "Bad connection" }, |
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{ ESC_DIRECTORY_SERVER_FAILURE, "Directory server failure" }, |
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{ ESC_UNABLE_TO_ROUTE, "Unable to route" }, |
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{ ESC_MAIL_SYSTEM_CONGESTION, "Mail system congestion" }, |
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{ ESC_ROUTING_LOOP_DETECTED, "Routing loop detected" }, |
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{ ESC_DELIVERY_TIME_EXPIRED, "Delivery time expired" }, |
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/* 5.x */ |
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{ ESC_INVALID_RECIPIENT, "Invalid recipient" }, |
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{ ESC_INVALID_COMMAND, "Invalid command" }, |
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{ ESC_SYNTAX_ERROR, "Syntax error" }, |
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{ ESC_TOO_MANY_RECIPIENTS, "Too many recipients" }, |
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{ ESC_INVALID_COMMAND_ARGUMENTS, "Invalid command arguments" }, |
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{ ESC_WRONG_PROTOCOL_VERSION, "Wrong protocol version" }, |
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/* 6.x */ |
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{ ESC_OTHER_MEDIA_ERROR, "Other/Undefined media error" }, |
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{ ESC_MEDIA_NOT_SUPPORTED, "Media not supported" }, |
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{ ESC_CONVERSION_REQUIRED_AND_PROHIBITED, "Conversion required and prohibited" }, |
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{ ESC_CONVERSION_REQUIRED_BUT_NOT_SUPPORTED, "Conversion required but not supported" }, |
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{ ESC_CONVERSION_WITH_LOSS_PERFORMED, "Conversion with loss performed" }, |
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{ ESC_CONVERSION_FAILED, "Conversion failed" }, |
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/* 7.x */ |
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{ ESC_OTHER_SECURITY_STATUS, "Other/Undefined security status" }, |
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{ ESC_DELIVERY_NOT_AUTHORIZED_MESSAGE_REFUSED, "Delivery not authorized, message refused" }, |
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{ ESC_MAILING_LIST_EXPANSION_PROHIBITED, "Mailing list expansion prohibited" }, |
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{ ESC_SECURITY_CONVERSION_REQUIRED_NOT_POSSIBLE,"Security conversion required but not possible" }, |
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{ ESC_SECURITY_FEATURES_NOT_SUPPORTED, "Security features not supported" }, |
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{ ESC_CRYPTOGRAPHIC_FAILURE, "Cryptographic failure" }, |
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{ ESC_CRYPTOGRAPHIC_ALGORITHM_NOT_SUPPORTED, "Cryptographic algorithm not supported" }, |
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{ ESC_MESSAGE_TOO_BIG_FOR_SYSTEM, "Message integrity failure" }, |
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}; |
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const char * |
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esc_code(enum enhanced_status_class class, enum enhanced_status_code code) |
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{ |
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static char buffer[6]; |
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(void)snprintf(buffer, sizeof buffer, "%d.%d.%d", class, code / 10, code % 10); |
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return buffer; |
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} |
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const char * |
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esc_description(enum enhanced_status_code code) |
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{ |
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uint32_t i; |
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for (i = 0; i < nitems(esc); ++i) |
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if (code == esc[i].code) |
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return esc[i].description; |
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return "Other/Undefined"; |
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} |