diff options
Diffstat (limited to '')
-rw-r--r-- | src/transports/lmtp.c | 809 |
1 files changed, 809 insertions, 0 deletions
diff --git a/src/transports/lmtp.c b/src/transports/lmtp.c new file mode 100644 index 0000000..5a1b7c9 --- /dev/null +++ b/src/transports/lmtp.c @@ -0,0 +1,809 @@ +/************************************************* +* Exim - an Internet mail transport agent * +*************************************************/ + +/* Copyright (c) University of Cambridge 1995 - 2018 */ +/* Copyright (c) The Exim Maintainers 2020 */ +/* See the file NOTICE for conditions of use and distribution. */ + + +#include "../exim.h" +#include "lmtp.h" + +#define PENDING_OK 256 + + +/* Options specific to the lmtp transport. They must be in alphabetic +order (note that "_" comes before the lower case letters). Those starting +with "*" are not settable by the user but are used by the option-reading +software for alternative value types. Some options are stored in the transport +instance block so as to be publicly visible; these are flagged with opt_public. +*/ + +optionlist lmtp_transport_options[] = { + { "batch_id", opt_stringptr | opt_public, + OPT_OFF(transport_instance, batch_id) }, + { "batch_max", opt_int | opt_public, + OPT_OFF(transport_instance, batch_max) }, + { "command", opt_stringptr, + OPT_OFF(lmtp_transport_options_block, cmd) }, + { "ignore_quota", opt_bool, + OPT_OFF(lmtp_transport_options_block, ignore_quota) }, + { "socket", opt_stringptr, + OPT_OFF(lmtp_transport_options_block, skt) }, + { "timeout", opt_time, + OPT_OFF(lmtp_transport_options_block, timeout) } +}; + +/* Size of the options list. An extern variable has to be used so that its +address can appear in the tables drtables.c. */ + +int lmtp_transport_options_count = + sizeof(lmtp_transport_options)/sizeof(optionlist); + + +#ifdef MACRO_PREDEF + +/* Dummy values */ +lmtp_transport_options_block lmtp_transport_option_defaults = {0}; +void lmtp_transport_init(transport_instance *tblock) {} +BOOL lmtp_transport_entry(transport_instance *tblock, address_item *addr) {return FALSE;} + +#else /*!MACRO_PREDEF*/ + + +/* Default private options block for the lmtp transport. */ + +lmtp_transport_options_block lmtp_transport_option_defaults = { + NULL, /* cmd */ + NULL, /* skt */ + 5*60, /* timeout */ + 0, /* options */ + FALSE /* ignore_quota */ +}; + + + +/************************************************* +* Initialization entry point * +*************************************************/ + +/* Called for each instance, after its options have been read, to +enable consistency checks to be done, or anything else that needs +to be set up. */ + +void +lmtp_transport_init(transport_instance *tblock) +{ +lmtp_transport_options_block *ob = + (lmtp_transport_options_block *)(tblock->options_block); + +/* Either the command field or the socket field must be set */ + +if ((ob->cmd == NULL) == (ob->skt == NULL)) + log_write(0, LOG_PANIC_DIE|LOG_CONFIG, + "one (and only one) of command or socket must be set for the %s transport", + tblock->name); + +/* If a fixed uid field is set, then a gid field must also be set. */ + +if (tblock->uid_set && !tblock->gid_set && tblock->expand_gid == NULL) + log_write(0, LOG_PANIC_DIE|LOG_CONFIG, + "user set without group for the %s transport", tblock->name); + +/* Set up the bitwise options for transport_write_message from the various +driver options. Only one of body_only and headers_only can be set. */ + +ob->options |= + (tblock->body_only? topt_no_headers : 0) | + (tblock->headers_only? topt_no_body : 0) | + (tblock->return_path_add? topt_add_return_path : 0) | + (tblock->delivery_date_add? topt_add_delivery_date : 0) | + (tblock->envelope_to_add? topt_add_envelope_to : 0) | + topt_use_crlf | topt_end_dot; +} + + +/************************************************* +* Check an LMTP response * +*************************************************/ + +/* This function is given an errno code and the LMTP response buffer to +analyse. It sets an appropriate message and puts the first digit of the +response code into the yield variable. If no response was actually read, a +suitable digit is chosen. + +Arguments: + errno_value pointer to the errno value + more_errno from the top address for use with ERRNO_FILTER_FAIL + buffer the LMTP response buffer + yield where to put a one-digit LMTP response code + message where to put an error message + +Returns: TRUE if a "QUIT" command should be sent, else FALSE +*/ + +static BOOL +check_response(int *errno_value, int more_errno, uschar *buffer, + int *yield, uschar **message) +{ +*yield = '4'; /* Default setting is to give a temporary error */ + +/* Handle response timeout */ + +if (*errno_value == ETIMEDOUT) + { + *message = string_sprintf("LMTP timeout after %s", big_buffer); + if (transport_count > 0) + *message = string_sprintf("%s (%d bytes written)", *message, + transport_count); + *errno_value = 0; + return FALSE; + } + +/* Handle malformed LMTP response */ + +if (*errno_value == ERRNO_SMTPFORMAT) + { + *message = string_sprintf("Malformed LMTP response after %s: %s", + big_buffer, string_printing(buffer)); + return FALSE; + } + +/* Handle a failed filter process error; can't send QUIT as we mustn't +end the DATA. */ + +if (*errno_value == ERRNO_FILTER_FAIL) + { + *message = string_sprintf("transport filter process failed (%d)%s", + more_errno, + (more_errno == EX_EXECFAILED)? ": unable to execute command" : ""); + return FALSE; + } + +/* Handle a failed add_headers expansion; can't send QUIT as we mustn't +end the DATA. */ + +if (*errno_value == ERRNO_CHHEADER_FAIL) + { + *message = + string_sprintf("failed to expand headers_add or headers_remove: %s", + expand_string_message); + return FALSE; + } + +/* Handle failure to write a complete data block */ + +if (*errno_value == ERRNO_WRITEINCOMPLETE) + { + *message = US"failed to write a data block"; + return FALSE; + } + +/* Handle error responses from the remote process. */ + +if (buffer[0] != 0) + { + const uschar *s = string_printing(buffer); + *message = string_sprintf("LMTP error after %s: %s", big_buffer, s); + *yield = buffer[0]; + return TRUE; + } + +/* No data was read. If there is no errno, this must be the EOF (i.e. +connection closed) case, which causes deferral. Otherwise, leave the errno +value to be interpreted. In all cases, we have to assume the connection is now +dead. */ + +if (*errno_value == 0) + { + *errno_value = ERRNO_SMTPCLOSED; + *message = string_sprintf("LMTP connection closed after %s", big_buffer); + } + +return FALSE; +} + + + +/************************************************* +* Write LMTP command * +*************************************************/ + +/* The formatted command is left in big_buffer so that it can be reflected in +any error message. + +Arguments: + fd the fd to write to + format a format, starting with one of + of HELO, MAIL FROM, RCPT TO, DATA, ".", or QUIT. + ... data for the format + +Returns: TRUE if successful, FALSE if not, with errno set +*/ + +static BOOL +lmtp_write_command(int fd, const char *format, ...) +{ +gstring gs = { .size = big_buffer_size, .ptr = 0, .s = big_buffer }; +int rc; +va_list ap; + +/*XXX see comment in smtp_write_command() regarding leaving stuff in +big_buffer */ + +va_start(ap, format); +if (!string_vformat(&gs, SVFMT_TAINT_NOCHK, CS format, ap)) + { + va_end(ap); + errno = ERRNO_SMTPFORMAT; + return FALSE; + } +va_end(ap); +DEBUG(D_transport|D_v) debug_printf(" LMTP>> %s", string_from_gstring(&gs)); +rc = write(fd, gs.s, gs.ptr); +gs.ptr -= 2; string_from_gstring(&gs); /* remove \r\n for debug and error message */ +if (rc > 0) return TRUE; +DEBUG(D_transport) debug_printf("write failed: %s\n", strerror(errno)); +return FALSE; +} + + + + +/************************************************* +* Read LMTP response * +*************************************************/ + +/* This function reads an LMTP response with a timeout, and returns the +response in the given buffer. It also analyzes the first digit of the reply +code and returns FALSE if it is not acceptable. + +FALSE is also returned after a reading error. In this case buffer[0] will be +zero, and the error code will be in errno. + +Arguments: + f a file to read from + buffer where to put the response + size the size of the buffer + okdigit the expected first digit of the response + timeout the timeout to use + +Returns: TRUE if a valid, non-error response was received; else FALSE +*/ + +static BOOL +lmtp_read_response(FILE *f, uschar *buffer, int size, int okdigit, int timeout) +{ +int count; +uschar *ptr = buffer; +uschar *readptr = buffer; + +/* Ensure errno starts out zero */ + +errno = 0; + +/* Loop for handling LMTP responses that do not all come in one line. */ + +for (;;) + { + /* If buffer is too full, something has gone wrong. */ + + if (size < 10) + { + *readptr = 0; + errno = ERRNO_SMTPFORMAT; + return FALSE; + } + + /* Loop to cover the read getting interrupted. */ + + for (;;) + { + char *rc; + int save_errno; + + *readptr = 0; /* In case nothing gets read */ + sigalrm_seen = FALSE; + ALARM(timeout); + rc = Ufgets(readptr, size-1, f); + save_errno = errno; + ALARM_CLR(0); + errno = save_errno; + + if (rc != NULL) break; /* A line has been read */ + + /* Handle timeout; must do this first because it uses EINTR */ + + if (sigalrm_seen) errno = ETIMEDOUT; + + /* If some other interrupt arrived, just retry. We presume this to be rare, + but it can happen (e.g. the SIGUSR1 signal sent by exiwhat causes + read() to exit). */ + + else if (errno == EINTR) + { + DEBUG(D_transport) debug_printf("EINTR while reading LMTP response\n"); + continue; + } + + /* Handle other errors, including EOF; ensure buffer is completely empty. */ + + buffer[0] = 0; + return FALSE; + } + + /* Adjust size in case we have to read another line, and adjust the + count to be the length of the line we are about to inspect. */ + + count = Ustrlen(readptr); + size -= count; + count += readptr - ptr; + + /* See if the final two characters in the buffer are \r\n. If not, we + have to read some more. At least, that is what we should do on a strict + interpretation of the RFC. But accept LF as well, as we do for SMTP. */ + + if (ptr[count-1] != '\n') + { + DEBUG(D_transport) + { + debug_printf("LMTP input line incomplete in one buffer:\n "); + for (int i = 0; i < count; i++) + { + int c = (ptr[i]); + if (mac_isprint(c)) debug_printf("%c", c); else debug_printf("<%d>", c); + } + debug_printf("\n"); + } + readptr = ptr + count; + continue; + } + + /* Remove any whitespace at the end of the buffer. This gets rid of CR, LF + etc. at the end. Show it, if debugging, formatting multi-line responses. */ + + while (count > 0 && isspace(ptr[count-1])) count--; + ptr[count] = 0; + + DEBUG(D_transport|D_v) + { + uschar *s = ptr; + uschar *t = ptr; + while (*t != 0) + { + while (*t != 0 && *t != '\n') t++; + debug_printf(" %s %*s\n", (s == ptr)? "LMTP<<" : " ", + (int)(t-s), s); + if (*t == 0) break; + s = t = t + 1; + } + } + + /* Check the format of the response: it must start with three digits; if + these are followed by a space or end of line, the response is complete. If + they are followed by '-' this is a multi-line response and we must look for + another line until the final line is reached. The only use made of multi-line + responses is to pass them back as error messages. We therefore just + concatenate them all within the buffer, which should be large enough to + accept any reasonable number of lines. A multiline response may already + have been read in one go - hence the loop here. */ + + for(;;) + { + uschar *p; + if (count < 3 || + !isdigit(ptr[0]) || + !isdigit(ptr[1]) || + !isdigit(ptr[2]) || + (ptr[3] != '-' && ptr[3] != ' ' && ptr[3] != 0)) + { + errno = ERRNO_SMTPFORMAT; /* format error */ + return FALSE; + } + + /* If a single-line response, exit the loop */ + + if (ptr[3] != '-') break; + + /* For a multi-line response see if the next line is already read, and if + so, stay in this loop to check it. */ + + p = ptr + 3; + while (*(++p) != 0) + { + if (*p == '\n') + { + ptr = ++p; + break; + } + } + if (*p == 0) break; /* No more lines to check */ + } + + /* End of response. If the last of the lines we are looking at is the final + line, we are done. Otherwise more data has to be read. */ + + if (ptr[3] != '-') break; + + /* Move the reading pointer upwards in the buffer and insert \n in case this + is an error message that subsequently gets printed. Set the scanning pointer + to the reading pointer position. */ + + ptr += count; + *ptr++ = '\n'; + size--; + readptr = ptr; + } + +/* Return a value that depends on the LMTP return code. Ensure that errno is +zero, because the caller of this function looks at errno when FALSE is +returned, to distinguish between an unexpected return code and other errors +such as timeouts, lost connections, etc. */ + +errno = 0; +return buffer[0] == okdigit; +} + + + + + + +/************************************************* +* Main entry point * +*************************************************/ + +/* See local README for interface details. For setup-errors, this transport +returns FALSE, indicating that the first address has the status for all; in +normal cases it returns TRUE, indicating that each address has its own status +set. */ + +BOOL +lmtp_transport_entry( + transport_instance *tblock, /* data for this instantiation */ + address_item *addrlist) /* address(es) we are working on */ +{ +pid_t pid = 0; +FILE *out; +lmtp_transport_options_block *ob = + (lmtp_transport_options_block *)(tblock->options_block); +struct sockaddr_un sockun; /* don't call this "sun" ! */ +int timeout = ob->timeout; +int fd_in = -1, fd_out = -1; +int code, save_errno; +BOOL send_data; +BOOL yield = FALSE; +uschar *igquotstr = US""; +uschar *sockname = NULL; +const uschar **argv; +uschar buffer[256]; + +DEBUG(D_transport) debug_printf("%s transport entered\n", tblock->name); + +/* Initialization ensures that either a command or a socket is specified, but +not both. When a command is specified, call the common function for creating an +argument list and expanding the items. */ + +if (ob->cmd) + { + DEBUG(D_transport) debug_printf("using command %s\n", ob->cmd); + sprintf(CS buffer, "%.50s transport", tblock->name); + if (!transport_set_up_command(&argv, ob->cmd, TRUE, PANIC, addrlist, buffer, + NULL)) + return FALSE; + + /* If the -N option is set, can't do any more. Presume all has gone well. */ + if (f.dont_deliver) + goto MINUS_N; + +/* As this is a local transport, we are already running with the required +uid/gid and current directory. Request that the new process be a process group +leader, so we can kill it and all its children on an error. */ + + if ((pid = child_open(USS argv, NULL, 0, &fd_in, &fd_out, TRUE, + US"lmtp-tpt-cmd")) < 0) + { + addrlist->message = string_sprintf( + "Failed to create child process for %s transport: %s", tblock->name, + strerror(errno)); + return FALSE; + } + } + +/* When a socket is specified, expand the string and create a socket. */ + +else + { + DEBUG(D_transport) debug_printf("using socket %s\n", ob->skt); + if (!(sockname = expand_string(ob->skt))) + { + addrlist->message = string_sprintf("Expansion of \"%s\" (socket setting " + "for %s transport) failed: %s", ob->skt, tblock->name, + expand_string_message); + return FALSE; + } + if ((fd_in = fd_out = socket(PF_UNIX, SOCK_STREAM, 0)) == -1) + { + addrlist->message = string_sprintf( + "Failed to create socket %s for %s transport: %s", + ob->skt, tblock->name, strerror(errno)); + return FALSE; + } + + /* If the -N option is set, can't do any more. Presume all has gone well. */ + if (f.dont_deliver) + goto MINUS_N; + + sockun.sun_family = AF_UNIX; + sprintf(sockun.sun_path, "%.*s", (int)(sizeof(sockun.sun_path)-1), sockname); + if(connect(fd_out, (struct sockaddr *)(&sockun), sizeof(sockun)) == -1) + { + addrlist->message = string_sprintf( + "Failed to connect to socket %s for %s transport: %s", + sockun.sun_path, tblock->name, strerror(errno)); + return FALSE; + } + } + + +/* Make the output we are going to read into a file. */ + +out = fdopen(fd_out, "rb"); + +/* Now we must implement the LMTP protocol. It is like SMTP, except that after +the end of the message, a return code for every accepted RCPT TO is sent. This +allows for message+recipient checks after the message has been received. */ + +/* First thing is to wait for an initial greeting. */ + +Ustrcpy(big_buffer, US"initial connection"); +if (!lmtp_read_response(out, buffer, sizeof(buffer), '2', + timeout)) goto RESPONSE_FAILED; + +/* Next, we send a LHLO command, and expect a positive response */ + +if (!lmtp_write_command(fd_in, "%s %s\r\n", "LHLO", + primary_hostname)) goto WRITE_FAILED; + +if (!lmtp_read_response(out, buffer, sizeof(buffer), '2', + timeout)) goto RESPONSE_FAILED; + +/* If the ignore_quota option is set, note whether the server supports the +IGNOREQUOTA option, and if so, set an appropriate addition for RCPT. */ + +if (ob->ignore_quota) + igquotstr = (pcre_exec(regex_IGNOREQUOTA, NULL, CS buffer, + Ustrlen(CS buffer), 0, PCRE_EOPT, NULL, 0) >= 0)? US" IGNOREQUOTA" : US""; + +/* Now the envelope sender */ + +if (!lmtp_write_command(fd_in, "MAIL FROM:<%s>\r\n", return_path)) + goto WRITE_FAILED; + +if (!lmtp_read_response(out, buffer, sizeof(buffer), '2', timeout)) + { + if (errno == 0 && buffer[0] == '4') + { + errno = ERRNO_MAIL4XX; + addrlist->more_errno |= ((buffer[1] - '0')*10 + buffer[2] - '0') << 8; + } + goto RESPONSE_FAILED; + } + +/* Next, we hand over all the recipients. Some may be permanently or +temporarily rejected; others may be accepted, for now. */ + +send_data = FALSE; +for (address_item * addr = addrlist; addr; addr = addr->next) + { + if (!lmtp_write_command(fd_in, "RCPT TO:<%s>%s\r\n", + transport_rcpt_address(addr, tblock->rcpt_include_affixes), igquotstr)) + goto WRITE_FAILED; + if (lmtp_read_response(out, buffer, sizeof(buffer), '2', timeout)) + { + send_data = TRUE; + addr->transport_return = PENDING_OK; + } + else + { + if (errno != 0 || buffer[0] == 0) goto RESPONSE_FAILED; + addr->message = string_sprintf("LMTP error after %s: %s", big_buffer, + string_printing(buffer)); + setflag(addr, af_pass_message); /* Allow message to go to user */ + if (buffer[0] == '5') addr->transport_return = FAIL; else + { + addr->basic_errno = ERRNO_RCPT4XX; + addr->more_errno |= ((buffer[1] - '0')*10 + buffer[2] - '0') << 8; + } + } + } + +/* Now send the text of the message if there were any good recipients. */ + +if (send_data) + { + BOOL ok; + transport_ctx tctx = { + {fd_in}, + tblock, + addrlist, + US".", US"..", + ob->options + }; + + if (!lmtp_write_command(fd_in, "DATA\r\n")) goto WRITE_FAILED; + if (!lmtp_read_response(out, buffer, sizeof(buffer), '3', timeout)) + { + if (errno == 0 && buffer[0] == '4') + { + errno = ERRNO_DATA4XX; + addrlist->more_errno |= ((buffer[1] - '0')*10 + buffer[2] - '0') << 8; + } + goto RESPONSE_FAILED; + } + + sigalrm_seen = FALSE; + transport_write_timeout = timeout; + Ustrcpy(big_buffer, US"sending data block"); /* For error messages */ + DEBUG(D_transport|D_v) + debug_printf(" LMTP>> writing message and terminating \".\"\n"); + + transport_count = 0; + ok = transport_write_message(&tctx, 0); + + /* Failure can either be some kind of I/O disaster (including timeout), + or the failure of a transport filter or the expansion of added headers. */ + + if (!ok) + { + buffer[0] = 0; /* There hasn't been a response */ + goto RESPONSE_FAILED; + } + + Ustrcpy(big_buffer, US"end of data"); /* For error messages */ + + /* We now expect a response for every address that was accepted above, + in the same order. For those that get a response, their status is fixed; + any that are accepted have been handed over, even if later responses crash - + at least, that's how I read RFC 2033. */ + + for (address_item * addr = addrlist; addr; addr = addr->next) + { + if (addr->transport_return != PENDING_OK) continue; + + if (lmtp_read_response(out, buffer, sizeof(buffer), '2', timeout)) + { + addr->transport_return = OK; + if (LOGGING(smtp_confirmation)) + { + const uschar *s = string_printing(buffer); + /* de-const safe here as string_printing known to have alloc'n'copied */ + addr->message = (s == buffer)? US string_copy(s) : US s; + } + } + /* If the response has failed badly, use it for all the remaining pending + addresses and give up. */ + + else if (errno != 0 || buffer[0] == 0) + { + save_errno = errno; + check_response(&save_errno, addr->more_errno, buffer, &code, + &(addr->message)); + addr->transport_return = (code == '5')? FAIL : DEFER; + for (address_item * a = addr->next; a; a = a->next) + { + if (a->transport_return != PENDING_OK) continue; + a->basic_errno = addr->basic_errno; + a->message = addr->message; + a->transport_return = addr->transport_return; + } + break; + } + + /* Otherwise, it's an LMTP error code return for one address */ + + else + { + if (buffer[0] == '4') + { + addr->basic_errno = ERRNO_DATA4XX; + addr->more_errno |= ((buffer[1] - '0')*10 + buffer[2] - '0') << 8; + } + addr->message = string_sprintf("LMTP error after %s: %s", big_buffer, + string_printing(buffer)); + addr->transport_return = (buffer[0] == '5')? FAIL : DEFER; + setflag(addr, af_pass_message); /* Allow message to go to user */ + } + } + } + +/* The message transaction has completed successfully - this doesn't mean that +all the addresses have necessarily been transferred, but each has its status +set, so we change the yield to TRUE. */ + +yield = TRUE; +(void) lmtp_write_command(fd_in, "QUIT\r\n"); +(void) lmtp_read_response(out, buffer, sizeof(buffer), '2', 1); + +goto RETURN; + + +/* Come here if any call to read_response, other than a response after the data +phase, failed. Put the error in the top address - this will be replicated +because the yield is still FALSE. (But omit ETIMEDOUT, as there will already be +a suitable message.) Analyse the error, and if if isn't too bad, send a QUIT +command. Wait for the response with a short timeout, so we don't wind up this +process before the far end has had time to read the QUIT. */ + +RESPONSE_FAILED: + +save_errno = errno; +if (errno != ETIMEDOUT && errno != 0) addrlist->basic_errno = errno; +addrlist->message = NULL; + +if (check_response(&save_errno, addrlist->more_errno, + buffer, &code, &(addrlist->message))) + { + (void) lmtp_write_command(fd_in, "QUIT\r\n"); + (void) lmtp_read_response(out, buffer, sizeof(buffer), '2', 1); + } + +addrlist->transport_return = (code == '5')? FAIL : DEFER; +if (code == '4' && save_errno > 0) + addrlist->message = string_sprintf("%s: %s", addrlist->message, + strerror(save_errno)); +goto KILL_AND_RETURN; + +/* Come here if there are errors during writing of a command or the message +itself. This error will be applied to all the addresses. */ + +WRITE_FAILED: + +addrlist->transport_return = PANIC; +addrlist->basic_errno = errno; +if (errno == ERRNO_CHHEADER_FAIL) + addrlist->message = + string_sprintf("Failed to expand headers_add or headers_remove: %s", + expand_string_message); +else if (errno == ERRNO_FILTER_FAIL) + addrlist->message = US"Filter process failure"; +else if (errno == ERRNO_WRITEINCOMPLETE) + addrlist->message = US"Failed repeatedly to write data"; +else if (errno == ERRNO_SMTPFORMAT) + addrlist->message = US"overlong LMTP command generated"; +else + addrlist->message = string_sprintf("Error %d", errno); + +/* Come here after errors. Kill off the process. */ + +KILL_AND_RETURN: + +if (pid > 0) killpg(pid, SIGKILL); + +/* Come here from all paths after the subprocess is created. Wait for the +process, but with a timeout. */ + +RETURN: + +(void)child_close(pid, timeout); + +if (fd_in >= 0) (void)close(fd_in); +if (fd_out >= 0) (void)fclose(out); + +DEBUG(D_transport) + debug_printf("%s transport yields %d\n", tblock->name, yield); + +return yield; + + +MINUS_N: + DEBUG(D_transport) + debug_printf("*** delivery by %s transport bypassed by -N option", + tblock->name); + addrlist->transport_return = OK; + return FALSE; +} + +#endif /*!MACRO_PREDEF*/ +/* End of transport/lmtp.c */ |