X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/20395676aba7fa5eb9a2c5e0b9f582ec2b3e71e4..582f61444fa806694c2caae7c156830dbf8531d7:/src/src/transports/autoreply.c diff --git a/src/src/transports/autoreply.c b/src/src/transports/autoreply.c index 80c7c0db0..fa884cec4 100644 --- a/src/src/transports/autoreply.c +++ b/src/src/transports/autoreply.c @@ -2,9 +2,10 @@ * Exim - an Internet mail transport agent * *************************************************/ +/* Copyright (c) The Exim Maintainers 2020 - 2022 */ /* Copyright (c) University of Cambridge 1995 - 2018 */ -/* Copyright (c) The Exim Maintainers 2020 */ /* See the file NOTICE for conditions of use and distribution. */ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #include "../exim.h" @@ -57,27 +58,11 @@ BOOL autoreply_transport_entry(transport_instance *tblock, address_item *addr) { #else /*!MACRO_PREDEF*/ -/* Default private options block for the autoreply transport. */ +/* Default private options block for the autoreply transport. +All non-mentioned lements zero/null/false. */ autoreply_transport_options_block autoreply_transport_option_defaults = { - NULL, /* from */ - NULL, /* reply_to */ - NULL, /* to */ - NULL, /* cc */ - NULL, /* bcc */ - NULL, /* subject */ - NULL, /* headers */ - NULL, /* text */ - NULL, /* file */ - NULL, /* logfile */ - NULL, /* oncelog */ - NULL, /* once_repeat */ - NULL, /* never_mail */ - 0600, /* mode */ - 0, /* once_file_size */ - FALSE, /* file_expand */ - FALSE, /* file_optional */ - FALSE /* return message */ + .mode = 0600, }; @@ -175,18 +160,21 @@ return ss; list. Any that are found are removed. Arguments: - listptr points to the list of addresses + list list of addresses to be checked never_mail an address list, already expanded -Returns: nothing +Returns: edited replacement address list, or NULL, or original */ -static void -check_never_mail(uschar **listptr, const uschar *never_mail) +static uschar * +check_never_mail(uschar * list, const uschar * never_mail) { -uschar *s = *listptr; +rmark reset_point = store_mark(); +uschar * newlist = string_copy(list); +uschar * s = newlist; +BOOL hit = FALSE; -while (*s != 0) +while (*s) { uschar *error, *next; uschar *e = parse_find_address_end(s, FALSE); @@ -220,6 +208,7 @@ while (*s != 0) { DEBUG(D_transport) debug_printf("discarding recipient %s (matched never_mail)\n", next); + hit = TRUE; if (terminator == ',') e++; memmove(s, e, Ustrlen(e) + 1); } @@ -230,18 +219,31 @@ while (*s != 0) } } +/* If no addresses were removed, retrieve the memory used and return +the original. */ + +if (!hit) + { + store_reset(reset_point); + return list; + } + /* Check to see if we removed the last address, leaving a terminating comma that needs to be removed */ -s = *listptr + Ustrlen(*listptr); -while (s > *listptr && (isspace(s[-1]) || s[-1] == ',')) s--; +s = newlist + Ustrlen(newlist); +while (s > newlist && (isspace(s[-1]) || s[-1] == ',')) s--; *s = 0; -/* Check to see if there any addresses left; if not, set NULL */ +/* Check to see if there any addresses left; if not, return NULL */ + +s = newlist; +while (s && isspace(*s)) s++; +if (*s) + return newlist; -s = *listptr; -while (s != 0 && isspace(*s)) s++; -if (*s == 0) *listptr = NULL; +store_reset(reset_point); +return NULL; } @@ -263,7 +265,7 @@ int fd, pid, rc; int cache_fd = -1; int cache_size = 0; int add_size = 0; -EXIM_DB *dbm_file = NULL; +EXIM_DB * dbm_file = NULL; BOOL file_expand, return_message; uschar *from, *reply_to, *to, *cc, *bcc, *subject, *headers, *text, *file; uschar *logfile, *oncelog; @@ -345,16 +347,13 @@ else return FALSE; if (oncerepeat) - { - once_repeat_sec = readconf_readtime(oncerepeat, 0, FALSE); - if (once_repeat_sec < 0) + if ((once_repeat_sec = readconf_readtime(oncerepeat, 0, FALSE)) < 0) { addr->transport_return = FAIL; addr->message = string_sprintf("Invalid time value \"%s\" for " "\"once_repeat\" in %s transport", oncerepeat, tblock->name); return FALSE; } - } } /* If the never_mail option is set, we have to scan all the recipients and @@ -372,9 +371,9 @@ if (ob->never_mail) return FALSE; } - if (to) check_never_mail(&to, never_mail); - if (cc) check_never_mail(&cc, never_mail); - if (bcc) check_never_mail(&bcc, never_mail); + if (to) to = check_never_mail(to, never_mail); + if (cc) cc = check_never_mail(cc, never_mail); + if (bcc) bcc = check_never_mail(bcc, never_mail); if (!to && !cc && !bcc) { @@ -404,15 +403,14 @@ recipient cache. */ if (oncelog && *oncelog && to) { - uschar *m; time_t then = 0; - if ((m = is_tainted2(oncelog, 0, "Tainted '%s' (once file for %s transport)" - " not permitted", oncelog, tblock->name))) + if (is_tainted(oncelog)) { addr->transport_return = DEFER; addr->basic_errno = EACCES; - addr->message = m; + addr->message = string_sprintf("Tainted '%s' (once file for %s transport)" + " not permitted", oncelog, tblock->name); goto END_OFF; } @@ -440,7 +438,7 @@ if (oncelog && *oncelog && to) cache_size = statbuf.st_size; add_size = sizeof(time_t) + Ustrlen(to) + 1; - cache_buff = store_get(cache_size + add_size, is_tainted(oncelog)); + cache_buff = store_get(cache_size + add_size, oncelog); if (read(cache_fd, cache_buff, cache_size) != cache_size) { @@ -479,8 +477,7 @@ if (oncelog && *oncelog && to) dirname = (s = Ustrrchr(oncelog, '/')) ? string_copyn(oncelog, s - oncelog) : NULL; - EXIM_DBOPEN(oncelog, dirname, O_RDWR|O_CREAT, ob->mode, &dbm_file); - if (!dbm_file) + if (!(dbm_file = exim_dbopen(oncelog, dirname, O_RDWR|O_CREAT, ob->mode))) { addr->transport_return = DEFER; addr->basic_errno = errno; @@ -490,12 +487,12 @@ if (oncelog && *oncelog && to) goto END_OFF; } - EXIM_DATUM_INIT(key_datum); /* Some DBM libraries need datums */ - EXIM_DATUM_INIT(result_datum); /* to be cleared */ - EXIM_DATUM_DATA(key_datum) = CS to; - EXIM_DATUM_SIZE(key_datum) = Ustrlen(to) + 1; + exim_datum_init(&key_datum); /* Some DBM libraries need datums */ + exim_datum_init(&result_datum); /* to be cleared */ + exim_datum_data_set(&key_datum, (void *) to); + exim_datum_size_set(&key_datum, Ustrlen(to) + 1); - if (EXIM_DBGET(dbm_file, key_datum, result_datum)) + if (exim_dbget(dbm_file, &key_datum, &result_datum)) { /* If the datum size is that of a binary time, we are in the new world where messages are sent periodically. Otherwise the file is an old one, @@ -504,8 +501,8 @@ if (oncelog && *oncelog && to) introduced at Exim 3.00. In a couple of years' time the test on the size can be abolished. */ - if (EXIM_DATUM_SIZE(result_datum) == sizeof(time_t)) - memcpy(&then, EXIM_DATUM_DATA(result_datum), sizeof(time_t)); + if (exim_datum_size_get(&result_datum) == sizeof(time_t)) + memcpy(&then, exim_datum_data_get(&result_datum), sizeof(time_t)); else then = now; } @@ -516,14 +513,13 @@ if (oncelog && *oncelog && to) if (then != 0 && (once_repeat_sec <= 0 || now - then < once_repeat_sec)) { - uschar *m; int log_fd; - if ((m = is_tainted2(logfile, 0, "Tainted '%s' (logfile for %s transport)" - " not permitted", logfile, tblock->name))) + if (is_tainted(logfile)) { addr->transport_return = DEFER; addr->basic_errno = EACCES; - addr->message = m; + addr->message = string_sprintf("Tainted '%s' (logfile for %s transport)" + " not permitted", logfile, tblock->name); goto END_OFF; } @@ -550,13 +546,12 @@ if (oncelog && *oncelog && to) /* We are going to send a message. Ensure any requested file is available. */ if (file) { - uschar *m; - if ((m = is_tainted2(file, 0, "Tainted '%s' (file for %s transport)" - " not permitted", file, tblock->name))) + if (is_tainted(file)) { addr->transport_return = DEFER; addr->basic_errno = EACCES; - addr->message = m; + addr->message = string_sprintf("Tainted '%s' (file for %s transport)" + " not permitted", file, tblock->name); return FALSE; } if (!(ff = Ufopen(file, "rb")) && !ob->file_optional) @@ -580,7 +575,7 @@ if ((pid = child_open_exim(&fd, US"autoreply")) < 0) addr->message = string_sprintf("Failed to create child process to send " "message from %s transport: %s", tblock->name, strerror(errno)); DEBUG(D_transport) debug_printf("%s\n", addr->message); - if (dbm_file) EXIM_DBCLOSE(dbm_file); + if (dbm_file) exim_dbclose(dbm_file); return FALSE; } @@ -652,12 +647,11 @@ limit if we are returning the body. */ if (return_message) { - uschar *rubric = (tblock->headers_only)? - US"------ This is a copy of the message's header lines.\n" - : (tblock->body_only)? - US"------ This is a copy of the body of the message, without the headers.\n" - : - US"------ This is a copy of the message, including all the headers.\n"; + uschar *rubric = tblock->headers_only + ? US"------ This is a copy of the message's header lines.\n" + : tblock->body_only + ? US"------ This is a copy of the body of the message, without the headers.\n" + : US"------ This is a copy of the message, including all the headers.\n"; transport_ctx tctx = { .u = {.fd = fileno(fp)}, .tblock = tblock, @@ -742,18 +736,18 @@ if (cache_fd >= 0) else if (dbm_file) { EXIM_DATUM key_datum, value_datum; - EXIM_DATUM_INIT(key_datum); /* Some DBM libraries need to have */ - EXIM_DATUM_INIT(value_datum); /* cleared datums. */ - EXIM_DATUM_DATA(key_datum) = CS to; - EXIM_DATUM_SIZE(key_datum) = Ustrlen(to) + 1; + exim_datum_init(&key_datum); /* Some DBM libraries need to have */ + exim_datum_init(&value_datum); /* cleared datums. */ + exim_datum_data_set(&key_datum, to); + exim_datum_size_set(&key_datum, Ustrlen(to) + 1); /* Many OS define the datum value, sensibly, as a void *. However, there are some which still have char *. By casting this address to a char * we can avoid warning messages from the char * systems. */ - EXIM_DATUM_DATA(value_datum) = CS (&now); - EXIM_DATUM_SIZE(value_datum) = (int)sizeof(time_t); - EXIM_DBPUT(dbm_file, key_datum, value_datum); + exim_datum_data_set(&value_datum, &now); + exim_datum_size_set(&value_datum, sizeof(time_t)); + exim_dbput(dbm_file, &key_datum, &value_datum); } /* If sending failed, defer to try again - but if once is set the next @@ -816,7 +810,7 @@ if (logfile) } END_OFF: -if (dbm_file) EXIM_DBCLOSE(dbm_file); +if (dbm_file) exim_dbclose(dbm_file); if (cache_fd > 0) (void)close(cache_fd); DEBUG(D_transport) debug_printf("%s transport succeeded\n", tblock->name);