X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/57cc27852af9019c0c423bcfde0165e698a0ce54..a5ffa9b475a426bc73366db01f7cc92a3811bc3a:/src/src/receive.c diff --git a/src/src/receive.c b/src/src/receive.c index 33c60e08d..9561a4baf 100644 --- a/src/src/receive.c +++ b/src/src/receive.c @@ -84,12 +84,10 @@ receive_check_set_sender(uschar *newsender) { uschar *qnewsender; if (trusted_caller) return TRUE; -if (newsender == NULL || untrusted_set_sender == NULL) return FALSE; -qnewsender = (Ustrchr(newsender, '@') != NULL)? - newsender : string_sprintf("%s@%s", newsender, qualify_domain_sender); -return - match_address_list(qnewsender, TRUE, TRUE, CUSS &untrusted_set_sender, NULL, -1, - 0, NULL) == OK; +if (!newsender || !untrusted_set_sender) return FALSE; +qnewsender = Ustrchr(newsender, '@') + ? newsender : string_sprintf("%s@%s", newsender, qualify_domain_sender); +return match_address_list_basic(qnewsender, CUSS &untrusted_set_sender, 0) == OK; } @@ -831,7 +829,7 @@ while ((ch = (receive_getc)(GETC_BUFFER_UNLIMITED)) != EOF) { message_size++; if (fout != NULL && fputc('\n', fout) == EOF) return END_WERROR; - (void) cutthrough_data_put_nl(); + cutthrough_data_put_nl(); if (ch != '\r') ch_state = 1; else continue; } break; @@ -850,7 +848,7 @@ while ((ch = (receive_getc)(GETC_BUFFER_UNLIMITED)) != EOF) if (ch == '.') { uschar c= ch; - (void) cutthrough_data_puts(&c, 1); + cutthrough_data_puts(&c, 1); } ch_state = 1; break; @@ -860,7 +858,7 @@ while ((ch = (receive_getc)(GETC_BUFFER_UNLIMITED)) != EOF) message_size++; body_linecount++; if (fout != NULL && fputc('\n', fout) == EOF) return END_WERROR; - (void) cutthrough_data_put_nl(); + cutthrough_data_put_nl(); if (ch == '\r') { ch_state = 2; @@ -881,11 +879,11 @@ while ((ch = (receive_getc)(GETC_BUFFER_UNLIMITED)) != EOF) if (message_size > thismessage_size_limit) return END_SIZE; } if(ch == '\n') - (void) cutthrough_data_put_nl(); + cutthrough_data_put_nl(); else { uschar c = ch; - (void) cutthrough_data_puts(&c, 1); + cutthrough_data_puts(&c, 1); } } @@ -921,7 +919,7 @@ BOOL fix_nl = FALSE; for(;;) { - switch ((ch = (bdat_getc)(GETC_BUFFER_UNLIMITED))) + switch ((ch = bdat_getc(GETC_BUFFER_UNLIMITED))) { case EOF: return END_EOF; case ERR: return END_PROTOCOL; @@ -991,7 +989,7 @@ for(;;) { message_size++; if (fout && fputc('\n', fout) == EOF) return END_WERROR; - (void) cutthrough_data_put_nl(); + cutthrough_data_put_nl(); if (ch == '\r') continue; /* don't write CR */ ch_state = MID_LINE; } @@ -1008,16 +1006,58 @@ for(;;) if (message_size > thismessage_size_limit) return END_SIZE; } if(ch == '\n') - (void) cutthrough_data_put_nl(); + cutthrough_data_put_nl(); else { uschar c = ch; - (void) cutthrough_data_puts(&c, 1); + cutthrough_data_puts(&c, 1); } } /*NOTREACHED*/ } +static int +read_message_bdat_smtp_wire(FILE *fout) +{ +int ch; + +/* Remember that this message uses wireformat. */ + +DEBUG(D_receive) debug_printf("CHUNKING: writing spoolfile in wire format\n"); +spool_file_wireformat = TRUE; + +for (;;) + { + if (chunking_data_left > 0) + { + unsigned len = MAX(chunking_data_left, thismessage_size_limit - message_size + 1); + uschar * buf = bdat_getbuf(&len); + + message_size += len; + if (fout && fwrite(buf, len, 1, fout) != 1) return END_WERROR; + } + else switch (ch = bdat_getc(GETC_BUFFER_UNLIMITED)) + { + case EOF: return END_EOF; + case EOD: return END_DOT; + case ERR: return END_PROTOCOL; + + default: + message_size++; + /*XXX not done: + linelength + max_received_linelength + body_linecount + body_zerocount + */ + if (fout && fputc(ch, fout) == EOF) return END_WERROR; + break; + } + if (message_size > thismessage_size_limit) return END_SIZE; + } +/*NOTREACHED*/ +} + @@ -1308,36 +1348,30 @@ unsigned long mbox_size; header_line *my_headerlist; uschar *user_msg, *log_msg; int mime_part_count_buffer = -1; +uschar * mbox_filename; int rc = OK; memset(CS rfc822_file_path,0,2048); /* check if it is a MIME message */ -my_headerlist = header_list; -while (my_headerlist != NULL) - { - /* skip deleted headers */ - if (my_headerlist->type == '*') - { - my_headerlist = my_headerlist->next; - continue; - } - if (strncmpic(my_headerlist->text, US"Content-Type:", 13) == 0) + +for (my_headerlist = header_list; my_headerlist; my_headerlist = my_headerlist->next) + if ( my_headerlist->type != '*' /* skip deleted headers */ + && strncmpic(my_headerlist->text, US"Content-Type:", 13) == 0 + ) { DEBUG(D_receive) debug_printf("Found Content-Type: header - executing acl_smtp_mime.\n"); goto DO_MIME_ACL; } - my_headerlist = my_headerlist->next; - } DEBUG(D_receive) debug_printf("No Content-Type: header - presumably not a MIME message.\n"); return TRUE; DO_MIME_ACL: + /* make sure the eml mbox file is spooled up */ -mbox_file = spool_mbox(&mbox_size, NULL); -if (mbox_file == NULL) { - /* error while spooling */ +if (!(mbox_file = spool_mbox(&mbox_size, NULL, &mbox_filename))) + { /* error while spooling */ log_write(0, LOG_MAIN|LOG_PANIC, "acl_smtp_mime: error while creating mbox spool file, message temporarily rejected."); Uunlink(spool_name); @@ -1349,7 +1383,7 @@ if (mbox_file == NULL) { message_id[0] = 0; /* Indicate no message accepted */ *smtp_reply_ptr = US""; /* Indicate reply already sent */ return FALSE; /* Indicate skip to end of receive function */ -}; + } mime_is_rfc822 = 0; @@ -1373,14 +1407,13 @@ if (Ustrlen(rfc822_file_path) > 0) /* check if we must check any message/rfc822 attachments */ if (rc == OK) { - uschar temp_path[1024]; + uschar * scandir; struct dirent * entry; DIR * tempdir; - (void) string_format(temp_path, sizeof(temp_path), "%s/scan/%s", - spool_directory, message_id); + scandir = string_copyn(mbox_filename, Ustrrchr(mbox_filename, '/') - mbox_filename); - tempdir = opendir(CS temp_path); + tempdir = opendir(CS scandir); for (;;) { if (!(entry = readdir(tempdir))) @@ -1388,7 +1421,7 @@ if (rc == OK) if (strncmpic(US entry->d_name, US"__rfc822_", 9) == 0) { (void) string_format(rfc822_file_path, sizeof(rfc822_file_path), - "%s/scan/%s/%s", spool_directory, message_id, entry->d_name); + "%s/%s", scandir, entry->d_name); DEBUG(D_receive) debug_printf("RFC822 attachment detected: running MIME ACL for '%s'\n", rfc822_file_path); break; @@ -2161,7 +2194,7 @@ for (;;) sender_address, sender_fullhost ? " H=" : "", sender_fullhost ? sender_fullhost : US"", sender_ident ? " U=" : "", sender_ident ? sender_ident : US""); - smtp_printf("552 Message header not CRLF terminated\r\n"); + smtp_printf("552 Message header not CRLF terminated\r\n", FALSE); bdat_flush_data(); smtp_reply = US""; goto TIDYUP; /* Skip to end of function */ @@ -2994,7 +3027,6 @@ if (chunking_state > CHUNKING_OFFERED) /* Cutthrough delivery: We have to create the Received header now rather than at the end of reception, so the timestamp behaviour is a change to the normal case. -XXX Ensure this gets documented XXX. Having created it, send the headers to the destination. */ if (cutthrough.fd >= 0 && cutthrough.delivery) @@ -3087,9 +3119,11 @@ if (!ferror(data_file) && !(receive_feof)() && message_ended != END_DOT) { if (smtp_input) { - message_ended = chunking_state > CHUNKING_OFFERED - ? read_message_bdat_smtp(data_file) - : read_message_data_smtp(data_file); + message_ended = chunking_state <= CHUNKING_OFFERED + ? read_message_data_smtp(data_file) + : spool_wireformat + ? read_message_bdat_smtp_wire(data_file) + : read_message_bdat_smtp(data_file); receive_linecount++; /* The terminating "." line */ } else message_ended = read_message_data(data_file); @@ -3467,7 +3501,7 @@ else int all_pass = OK; int all_fail = FAIL; - smtp_printf("353 PRDR content analysis beginning\r\n"); + smtp_printf("353 PRDR content analysis beginning\r\n", TRUE); /* Loop through recipients, responses must be in same order received */ for (c = 0; recipients_count > c; c++) { @@ -3643,6 +3677,7 @@ dcc_ok = 0; version supplied with Exim always accepts, but this is a hook for sysadmins to supply their own checking code. The local_scan() function is run even when all the recipients have been discarded. */ +/*XXS could we avoid this for the standard case, given that few people will use it? */ lseek(data_fd, (long int)SPOOL_DATA_START_OFFSET, SEEK_SET); @@ -4267,12 +4302,12 @@ if (smtp_input) else if (chunking_state > CHUNKING_OFFERED) { - smtp_printf("250- %u byte chunk, total %d\r\n250 OK id=%s\r\n", + smtp_printf("250- %u byte chunk, total %d\r\n250 OK id=%s\r\n", FALSE, chunking_datasize, message_size+message_linecount, message_id); chunking_state = CHUNKING_OFFERED; } else - smtp_printf("250 OK id=%s\r\n", message_id); + smtp_printf("250 OK id=%s\r\n", FALSE, message_id); if (host_checking) fprintf(stdout, @@ -4286,7 +4321,7 @@ if (smtp_input) smtp_respond((fake_response == DEFER)? US"450" : US"550", 3, TRUE, fake_response_text); else - smtp_printf("%.1024s\r\n", smtp_reply); + smtp_printf("%.1024s\r\n", FALSE, smtp_reply); switch (cutthrough_done) {