*************************************************/
/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
/* See the file NOTICE for conditions of use and distribution. */
#endif
US"length",
US"listextract",
+ US"listquote",
US"lookup",
US"map",
US"nhash",
US"run",
US"sg",
US"sort",
+#ifdef EXPERIMENTAL_SRS_NATIVE
+ US"srs_encode",
+#endif
US"substr",
US"tr" };
#endif
EITEM_LENGTH,
EITEM_LISTEXTRACT,
+ EITEM_LISTQUOTE,
EITEM_LOOKUP,
EITEM_MAP,
EITEM_NHASH,
EITEM_RUN,
EITEM_SG,
EITEM_SORT,
+#ifdef EXPERIMENTAL_SRS_NATIVE
+ EITEM_SRS_ENCODE,
+#endif
EITEM_SUBSTR,
EITEM_TR };
US"base62d",
US"base64",
US"base64d",
+ US"bless",
US"domain",
US"escape",
US"escape8bit",
US"rxquote",
US"s",
US"sha1",
+ US"sha2",
US"sha256",
US"sha3",
US"stat",
EOP_BASE62D,
EOP_BASE64,
EOP_BASE64D,
+ EOP_BLESS,
EOP_DOMAIN,
EOP_ESCAPE,
EOP_ESCAPE8BIT,
EOP_RXQUOTE,
EOP_S,
EOP_SHA1,
+ EOP_SHA2,
EOP_SHA256,
EOP_SHA3,
EOP_STAT,
US"gei",
US"gt",
US"gti",
+#ifdef EXPERIMENTAL_SRS_NATIVE
+ US"inbound_srs",
+#endif
US"inlist",
US"inlisti",
US"isip",
ECOND_STR_GEI,
ECOND_STR_GT,
ECOND_STR_GTI,
+#ifdef EXPERIMENTAL_SRS_NATIVE
+ ECOND_INBOUND_SRS,
+#endif
ECOND_INLIST,
ECOND_INLISTI,
ECOND_ISIP,
} alblock;
static uschar * fn_recipients(void);
+typedef uschar * stringptr_fn_t(void);
+static uschar * fn_queue_size(void);
/* This table must be kept in alphabetical order. */
{ "address_file", vtype_stringptr, &address_file },
{ "address_pipe", vtype_stringptr, &address_pipe },
#ifdef EXPERIMENTAL_ARC
- { "arc_domains", vtype_string_func, &fn_arc_domains },
+ { "arc_domains", vtype_string_func, (void *) &fn_arc_domains },
{ "arc_oldest_pass", vtype_int, &arc_oldest_pass },
{ "arc_state", vtype_stringptr, &arc_state },
{ "arc_state_reason", vtype_stringptr, &arc_state_reason },
{ "dkim_verify_reason", vtype_stringptr, &dkim_verify_reason },
{ "dkim_verify_status", vtype_stringptr, &dkim_verify_status },
#endif
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
{ "dmarc_domain_policy", vtype_stringptr, &dmarc_domain_policy },
{ "dmarc_status", vtype_stringptr, &dmarc_status },
{ "dmarc_status_text", vtype_stringptr, &dmarc_status_text },
{ "exim_path", vtype_stringptr, &exim_path },
{ "exim_uid", vtype_uid, &exim_uid },
{ "exim_version", vtype_stringptr, &version_string },
- { "headers_added", vtype_string_func, &fn_hdrs_added },
+ { "headers_added", vtype_string_func, (void *) &fn_hdrs_added },
{ "home", vtype_stringptr, &deliver_home },
{ "host", vtype_stringptr, &deliver_host },
{ "host_address", vtype_stringptr, &deliver_host_address },
{ "local_part", vtype_stringptr, &deliver_localpart },
{ "local_part_data", vtype_stringptr, &deliver_localpart_data },
{ "local_part_prefix", vtype_stringptr, &deliver_localpart_prefix },
+ { "local_part_prefix_v", vtype_stringptr, &deliver_localpart_prefix_v },
{ "local_part_suffix", vtype_stringptr, &deliver_localpart_suffix },
+ { "local_part_suffix_v", vtype_stringptr, &deliver_localpart_suffix_v },
#ifdef HAVE_LOCAL_SCAN
{ "local_scan_data", vtype_stringptr, &local_scan_data },
#endif
{ "qualify_domain", vtype_stringptr, &qualify_domain_sender },
{ "qualify_recipient", vtype_stringptr, &qualify_domain_recipient },
{ "queue_name", vtype_stringptr, &queue_name },
+ { "queue_size", vtype_string_func, &fn_queue_size },
{ "rcpt_count", vtype_int, &rcpt_count },
{ "rcpt_defer_count", vtype_int, &rcpt_defer_count },
{ "rcpt_fail_count", vtype_int, &rcpt_fail_count },
{ "received_time", vtype_int, &received_time.tv_sec },
{ "recipient_data", vtype_stringptr, &recipient_data },
{ "recipient_verify_failure",vtype_stringptr,&recipient_verify_failure },
- { "recipients", vtype_string_func, &fn_recipients },
+ { "recipients", vtype_string_func, (void *) &fn_recipients },
{ "recipients_count", vtype_int, &recipients_count },
#ifdef WITH_CONTENT_SCAN
{ "regex_match_string", vtype_stringptr, ®ex_match_string },
#endif
{ "reply_address", vtype_reply, NULL },
-#if defined(SUPPORT_TLS) && defined(EXPERIMENTAL_REQUIRETLS)
- { "requiretls", vtype_bool, &tls_requiretls },
-#endif
{ "return_path", vtype_stringptr, &return_path },
{ "return_size_limit", vtype_int, &bounce_return_size_limit },
{ "router_name", vtype_stringptr, &router_name },
{ "smtp_active_hostname", vtype_stringptr, &smtp_active_hostname },
{ "smtp_command", vtype_stringptr, &smtp_cmd_buffer },
{ "smtp_command_argument", vtype_stringptr, &smtp_cmd_argument },
- { "smtp_command_history", vtype_string_func, &smtp_cmd_hist },
+ { "smtp_command_history", vtype_string_func, (void *) &smtp_cmd_hist },
{ "smtp_count_at_connection_start", vtype_int, &smtp_accept_count },
{ "smtp_notquit_reason", vtype_stringptr, &smtp_notquit_reason },
{ "sn0", vtype_filter_int, &filter_sn[0] },
{ "srs_db_key", vtype_stringptr, &srs_db_key },
{ "srs_orig_recipient", vtype_stringptr, &srs_orig_recipient },
{ "srs_orig_sender", vtype_stringptr, &srs_orig_sender },
+#endif
+#if defined(EXPERIMENTAL_SRS) || defined(EXPERIMENTAL_SRS_NATIVE)
{ "srs_recipient", vtype_stringptr, &srs_recipient },
+#endif
+#ifdef EXPERIMENTAL_SRS
{ "srs_status", vtype_stringptr, &srs_status },
#endif
{ "thisaddress", vtype_stringptr, &filter_thisaddress },
{ "tls_in_bits", vtype_int, &tls_in.bits },
{ "tls_in_certificate_verified", vtype_int, &tls_in.certificate_verified },
{ "tls_in_cipher", vtype_stringptr, &tls_in.cipher },
+ { "tls_in_cipher_std", vtype_stringptr, &tls_in.cipher_stdname },
{ "tls_in_ocsp", vtype_int, &tls_in.ocsp },
{ "tls_in_ourcert", vtype_cert, &tls_in.ourcert },
{ "tls_in_peercert", vtype_cert, &tls_in.peercert },
{ "tls_in_peerdn", vtype_stringptr, &tls_in.peerdn },
-#if defined(SUPPORT_TLS)
+#ifdef EXPERIMENTAL_TLS_RESUME
+ { "tls_in_resumption", vtype_int, &tls_in.resumption },
+#endif
+#ifndef DISABLE_TLS
{ "tls_in_sni", vtype_stringptr, &tls_in.sni },
#endif
+ { "tls_in_ver", vtype_stringptr, &tls_in.ver },
{ "tls_out_bits", vtype_int, &tls_out.bits },
{ "tls_out_certificate_verified", vtype_int,&tls_out.certificate_verified },
{ "tls_out_cipher", vtype_stringptr, &tls_out.cipher },
+ { "tls_out_cipher_std", vtype_stringptr, &tls_out.cipher_stdname },
#ifdef SUPPORT_DANE
{ "tls_out_dane", vtype_bool, &tls_out.dane_verified },
#endif
{ "tls_out_ourcert", vtype_cert, &tls_out.ourcert },
{ "tls_out_peercert", vtype_cert, &tls_out.peercert },
{ "tls_out_peerdn", vtype_stringptr, &tls_out.peerdn },
-#if defined(SUPPORT_TLS)
+#ifdef EXPERIMENTAL_TLS_RESUME
+ { "tls_out_resumption", vtype_int, &tls_out.resumption },
+#endif
+#ifndef DISABLE_TLS
{ "tls_out_sni", vtype_stringptr, &tls_out.sni },
#endif
#ifdef SUPPORT_DANE
{ "tls_out_tlsa_usage", vtype_int, &tls_out.tlsa_usage },
#endif
+ { "tls_out_ver", vtype_stringptr, &tls_out.ver },
{ "tls_peerdn", vtype_stringptr, &tls_in.peerdn }, /* mind the alphabetical order! */
-#if defined(SUPPORT_TLS)
+#ifndef DISABLE_TLS
{ "tls_sni", vtype_stringptr, &tls_in.sni }, /* mind the alphabetical order! */
#endif
BOOL
expand_check_condition(uschar *condition, uschar *m1, uschar *m2)
{
-int rc;
-uschar *ss = expand_string(condition);
-if (ss == NULL)
+uschar * ss = expand_string(condition);
+if (!ss)
{
if (!f.expand_string_forcedfail && !f.search_find_defer)
log_write(0, LOG_MAIN|LOG_PANIC, "failed to expand condition \"%s\" "
"for %s %s: %s", condition, m1, m2, expand_string_message);
return FALSE;
}
-rc = ss[0] != 0 && Ustrcmp(ss, "0") != 0 && strcmpic(ss, US"no") != 0 &&
+return *ss && Ustrcmp(ss, "0") != 0 && strcmpic(ss, US"no") != 0 &&
strcmpic(ss, US"false") != 0;
-return rc;
}
However, if we're stuck unable to provide this, then we'll fall back to
appallingly bad randomness.
-If SUPPORT_TLS is defined then this will not be used except as an emergency
+If DISABLE_TLS is not defined then this will not be used except as an emergency
fallback.
Arguments:
Returns a random number in range [0, max-1]
*/
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
# define vaguely_random_number vaguely_random_number_fallback
#endif
int
vaguely_random_number(int max)
{
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
# undef vaguely_random_number
#endif
- static pid_t pid = 0;
- pid_t p2;
-#if defined(HAVE_SRANDOM) && !defined(HAVE_SRANDOMDEV)
- struct timeval tv;
-#endif
+static pid_t pid = 0;
+pid_t p2;
- p2 = getpid();
- if (p2 != pid)
+if ((p2 = getpid()) != pid)
+ {
+ if (pid != 0)
{
- if (pid != 0)
- {
#ifdef HAVE_ARC4RANDOM
- /* cryptographically strong randomness, common on *BSD platforms, not
- so much elsewhere. Alas. */
-#ifndef NOT_HAVE_ARC4RANDOM_STIR
- arc4random_stir();
-#endif
+ /* cryptographically strong randomness, common on *BSD platforms, not
+ so much elsewhere. Alas. */
+# ifndef NOT_HAVE_ARC4RANDOM_STIR
+ arc4random_stir();
+# endif
#elif defined(HAVE_SRANDOM) || defined(HAVE_SRANDOMDEV)
-#ifdef HAVE_SRANDOMDEV
- /* uses random(4) for seeding */
- srandomdev();
-#else
- gettimeofday(&tv, NULL);
- srandom(tv.tv_sec | tv.tv_usec | getpid());
-#endif
+# ifdef HAVE_SRANDOMDEV
+ /* uses random(4) for seeding */
+ srandomdev();
+# else
+ {
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ srandom(tv.tv_sec | tv.tv_usec | getpid());
+ }
+# endif
#else
- /* Poor randomness and no seeding here */
+ /* Poor randomness and no seeding here */
#endif
- }
- pid = p2;
}
+ pid = p2;
+ }
#ifdef HAVE_ARC4RANDOM
- return arc4random() % max;
+return arc4random() % max;
#elif defined(HAVE_SRANDOM) || defined(HAVE_SRANDOMDEV)
- return random() % max;
+return random() % max;
#else
- /* This one returns a 16-bit number, definitely not crypto-strong */
- return random_number(max);
+/* This one returns a 16-bit number, definitely not crypto-strong */
+return random_number(max);
#endif
}
read_name(uschar *name, int max, const uschar *s, uschar *extras)
{
int ptr = 0;
-while (*s != 0 && (isalnum(*s) || Ustrchr(extras, *s) != NULL))
+while (*s && (isalnum(*s) || Ustrchr(extras, *s) != NULL))
{
if (ptr < max-1) name[ptr++] = *s;
s++;
a pointer to the subfield's data
*/
-static uschar *
-expand_getkeyed(uschar * key, const uschar * s)
+uschar *
+expand_getkeyed(const uschar * key, const uschar * s)
{
int length = Ustrlen(key);
-while (isspace(*s)) s++;
+Uskip_whitespace(&s);
/* Loop to search for the key */
while (*s && *s != '=' && !isspace(*s)) s++;
dkeylength = s - dkey;
- while (isspace(*s)) s++;
- if (*s == '=') while (isspace((*(++s))));
+ if (Uskip_whitespace(&s) == '=') while (isspace(*++s));
data = string_dequote(&s);
if (length == dkeylength && strncmpic(key, dkey, length) == 0)
return data;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
}
return NULL;
{
const uschar * tlist = list;
int sep = 0;
-uschar dummy;
+/* Tainted mem for the throwaway element copies */
+uschar * dummy = store_get(2, TRUE);
if (field < 0)
{
- for (field++; string_nextinlist(&tlist, &sep, &dummy, 1); ) field++;
+ for (field++; string_nextinlist(&tlist, &sep, dummy, 1); ) field++;
sep = 0;
}
if (field == 0) return NULL;
-while (--field > 0 && (string_nextinlist(&list, &sep, &dummy, 1))) ;
+while (--field > 0 && (string_nextinlist(&list, &sep, dummy, 1))) ;
return string_nextinlist(&list, &sep, NULL, 0);
}
/* Certificate fields, by name. Worry about by-OID later */
/* Names are chosen to not have common prefixes */
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
typedef struct
{
uschar * name;
string_sprintf("bad field selector \"%s\" for certextract", field);
return NULL;
}
-#endif /*SUPPORT_TLS*/
+#endif /*DISABLE_TLS*/
/*************************************************
* Extract a substring from a string *
found = TRUE;
s = h->text + len; /* text to insert */
if (!(flags & FH_WANT_RAW)) /* unless wanted raw, */
- while (isspace(*s)) s++; /* remove leading white space */
+ Uskip_whitespace(&s); /* remove leading white space */
t = h->text + h->slen; /* end-point */
/* Unless wanted raw, remove trailing whitespace, including the
/* Trim the header roughly if we're approaching limits */
inc = t - s;
- if ((g ? g->ptr : 0) + inc > header_insert_maxlen)
- inc = header_insert_maxlen - (g ? g->ptr : 0);
+ if (gstring_length(g) + inc > header_insert_maxlen)
+ inc = header_insert_maxlen - gstring_length(g);
/* For raw just copy the data; for a list, add the data as a colon-sep
list-element; for comma-list add as an unchecked comma,newline sep
if (flags & FH_WANT_LIST)
g = string_append_listele_n(g, ':', s, (unsigned)inc);
else if (flags & FH_WANT_RAW)
- {
g = string_catn(g, s, (unsigned)inc);
- (void) string_from_gstring(g);
- }
else if (inc > 0)
- if (comma)
- g = string_append2_listele_n(g, US",\n", s, (unsigned)inc);
- else
- g = string_append2_listele_n(g, US"\n", s, (unsigned)inc);
+ g = string_append2_listele_n(g, comma ? US",\n" : US"\n",
+ s, (unsigned)inc);
- if (g && g->ptr >= header_insert_maxlen) break;
+ if (gstring_length(g) >= header_insert_maxlen) break;
}
if (!found) return NULL; /* No header found */
*newsize = g->size;
if (flags & FH_WANT_RAW)
- return g->s;
+ return string_from_gstring(g);
/* Otherwise do RFC 2047 decoding, translating the charset if requested.
The rfc2047_decode2() function can return an error with decoded data if the
else
{
- uschar *decoded, *error;
-
- decoded = rfc2047_decode2(g->s, check_rfc2047_length, charset, '?', NULL,
- newsize, &error);
+ uschar * error, * decoded = rfc2047_decode2(string_from_gstring(g),
+ check_rfc2047_length, charset, '?', NULL, newsize, &error);
if (error)
- {
DEBUG(D_any) debug_printf("*** error in RFC 2047 decoding: %s\n"
" input was: %s\n", error, g->s);
- }
- return decoded ? decoded : g->s;
+ return decoded ? decoded : string_from_gstring(g);
}
}
}
+/*************************************************
+* Return size of queue *
+*************************************************/
+/* Ask the daemon for the queue size */
+
+static uschar *
+fn_queue_size(void)
+{
+struct sockaddr_un sa_un = {.sun_family = AF_UNIX};
+uschar buf[16];
+int fd;
+ssize_t len;
+const uschar * where;
+#ifndef EXIM_HAVE_ABSTRACT_UNIX_SOCKETS
+uschar * sname;
+#endif
+fd_set fds;
+struct timeval tv;
+
+if ((fd = socket(AF_UNIX, SOCK_DGRAM, 0)) < 0)
+ {
+ DEBUG(D_expand) debug_printf(" socket: %s\n", strerror(errno));
+ return NULL;
+ }
+
+#ifdef EXIM_HAVE_ABSTRACT_UNIX_SOCKETS
+sa_un.sun_path[0] = 0; /* Abstract local socket addr - Linux-specific? */
+len = offsetof(struct sockaddr_un, sun_path) + 1
+ + snprintf(sa_un.sun_path+1, sizeof(sa_un.sun_path)-1, "exim_%d", getpid());
+#else
+sname = string_sprintf("%s/p_%d", spool_directory, getpid());
+len = offsetof(struct sockaddr_un, sun_path)
+ + snprintf(sa_un.sun_path, sizeof(sa_un.sun_path), "%s", sname);
+#endif
+
+if (bind(fd, (const struct sockaddr *)&sa_un, len) < 0)
+ { where = US"bind"; goto bad; }
+
+#ifdef notdef
+debug_printf("local addr '%s%s'\n",
+ *sa_un.sun_path ? "" : "@",
+ sa_un.sun_path + (*sa_un.sun_path ? 0 : 1));
+#endif
+
+#ifdef EXIM_HAVE_ABSTRACT_UNIX_SOCKETS
+sa_un.sun_path[0] = 0; /* Abstract local socket addr - Linux-specific? */
+len = offsetof(struct sockaddr_un, sun_path) + 1
+ + snprintf(sa_un.sun_path+1, sizeof(sa_un.sun_path)-1, "%s",
+ expand_string(notifier_socket));
+#else
+len = offsetof(struct sockaddr_un, sun_path)
+ + snprintf(sa_un.sun_path, sizeof(sa_un.sun_path), "%s",
+ expand_string(notifier_socket));
+#endif
+
+if (connect(fd, (const struct sockaddr *)&sa_un, len) < 0)
+ { where = US"connect"; goto bad2; }
+
+buf[0] = NOTIFY_QUEUE_SIZE_REQ;
+if (send(fd, buf, 1, 0) < 0) { where = US"send"; goto bad; }
+
+FD_ZERO(&fds); FD_SET(fd, &fds);
+tv.tv_sec = 2; tv.tv_usec = 0;
+if (select(fd + 1, (SELECT_ARG2_TYPE *)&fds, NULL, NULL, &tv) != 1)
+ {
+ DEBUG(D_expand) debug_printf("no daemon response; using local evaluation\n");
+ len = snprintf(CS buf, sizeof(buf), "%u", queue_count_cached());
+ }
+else if ((len = recv(fd, buf, sizeof(buf), 0)) < 0)
+ { where = US"recv"; goto bad2; }
+
+close(fd);
+#ifndef EXIM_HAVE_ABSTRACT_UNIX_SOCKETS
+Uunlink(sname);
+#endif
+return string_copyn(buf, len);
+
+bad2:
+#ifndef EXIM_HAVE_ABSTRACT_UNIX_SOCKETS
+ Uunlink(sname);
+#endif
+bad:
+ close(fd);
+ DEBUG(D_expand) debug_printf(" %s: %s\n", where, strerror(errno));
+ return NULL;
+}
+
+
/*************************************************
* Find value of a variable *
*************************************************/
if ((Ustrncmp(name, "acl_c", 5) == 0 || Ustrncmp(name, "acl_m", 5) == 0) &&
!isalpha(name[5]))
{
- tree_node *node =
- tree_search((name[4] == 'c')? acl_var_c : acl_var_m, name + 4);
+ tree_node * node =
+ tree_search(name[4] == 'c' ? acl_var_c : acl_var_m, name + 4);
+ return node ? node->data.ptr : strict_acl_vars ? NULL : US"";
+ }
+else if (Ustrncmp(name, "r_", 2) == 0)
+ {
+ tree_node * node = tree_search(router_var, name + 2);
return node ? node->data.ptr : strict_acl_vars ? NULL : US"";
}
return sender_host_name ? sender_host_name : US"";
case vtype_localpart: /* Get local part from address */
- s = *((uschar **)(val));
- if (s == NULL) return US"";
- domain = Ustrrchr(s, '@');
- if (domain == NULL) return s;
+ if (!(s = *((uschar **)(val)))) return US"";
+ if (!(domain = Ustrrchr(s, '@'))) return s;
if (domain - s > sizeof(var_buffer) - 1)
log_write(0, LOG_MAIN|LOG_PANIC_DIE, "local part longer than " SIZE_T_FMT
" in string expansion", sizeof(var_buffer));
- Ustrncpy(var_buffer, s, domain - s);
- var_buffer[domain - s] = 0;
- return var_buffer;
+ return string_copyn(s, domain - s);
case vtype_domain: /* Get domain from address */
- s = *((uschar **)(val));
- if (s == NULL) return US"";
+ if (!(s = *((uschar **)(val)))) return US"";
domain = Ustrrchr(s, '@');
- return (domain == NULL)? US"" : domain + 1;
+ return domain ? domain + 1 : US"";
case vtype_msgheaders:
return find_header(NULL, newsize, exists_only ? FH_EXISTS_ONLY : 0, NULL);
s = find_header(US"reply-to:", newsize,
exists_only ? FH_EXISTS_ONLY|FH_WANT_RAW : FH_WANT_RAW,
headers_charset);
- if (s) while (isspace(*s)) s++;
+ if (s) Uskip_whitespace(&s);
if (!s || !*s)
{
*newsize = 0; /* For the *s==0 case */
if (s)
{
uschar *t;
- while (isspace(*s)) s++;
- for (t = s; *t != 0; t++) if (*t == '\n') *t = ' ';
+ Uskip_whitespace(&s);
+ for (t = s; *t; t++) if (*t == '\n') *t = ' ';
while (t > s && isspace(t[-1])) t--;
*t = 0;
}
case vtype_string_func:
{
- uschar * (*fn)() = val;
- return fn();
+ stringptr_fn_t * fn = (stringptr_fn_t *) val;
+ uschar* s = fn();
+ return s ? s : US"";
}
case vtype_pspace:
{
const uschar *s = *sptr;
-while (isspace(*s)) s++;
+Uskip_whitespace(&s);
for (int i = 0; i < n; i++)
{
if (*s != '{')
if (!(sub[i] = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, resetok)))
return 3;
if (*s++ != '}') return 1;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
}
if (check_end && *s++ != '}')
{
unsigned depth = 0;
BOOL quotesmode = wrap[0] == wrap[1];
-while (isspace(*p)) p++;
-
-if (*p == *wrap)
+if (Uskip_whitespace(&p) == *wrap)
{
s = ++p;
wrap++;
unsigned array_depth = 0, object_depth = 0;
const uschar * s = *list, * item;
-while (isspace(*s)) s++;
+skip_whitespace(&s);
for (item = s;
*s && (*s != ',' || array_depth != 0 || object_depth != 0);
+/************************************************/
+/* Return offset in ops table, or -1 if not found.
+Repoint to just after the operator in the string.
+
+Argument:
+ ss string representation of operator
+ opname split-out operator name
+*/
+
+static int
+identify_operator(const uschar ** ss, uschar ** opname)
+{
+const uschar * s = *ss;
+uschar name[256];
+
+/* Numeric comparisons are symbolic */
+
+if (*s == '=' || *s == '>' || *s == '<')
+ {
+ int p = 0;
+ name[p++] = *s++;
+ if (*s == '=')
+ {
+ name[p++] = '=';
+ s++;
+ }
+ name[p] = 0;
+ }
+
+/* All other conditions are named */
+
+else
+ s = read_name(name, sizeof(name), s, US"_");
+*ss = s;
+
+/* If we haven't read a name, it means some non-alpha character is first. */
+
+if (!name[0])
+ {
+ expand_string_message = string_sprintf("condition name expected, "
+ "but found \"%.16s\"", s);
+ return -1;
+ }
+if (opname)
+ *opname = string_copy(name);
+
+return chop_match(name, cond_table, nelem(cond_table));
+}
+
+
+/*************************************************
+* Handle MD5 or SHA-1 computation for HMAC *
+*************************************************/
+
+/* These are some wrapping functions that enable the HMAC code to be a bit
+cleaner. A good compiler will spot the tail recursion.
+
+Arguments:
+ type HMAC_MD5 or HMAC_SHA1
+ remaining are as for the cryptographic hash functions
+
+Returns: nothing
+*/
+
+static void
+chash_start(int type, void * base)
+{
+if (type == HMAC_MD5)
+ md5_start((md5 *)base);
+else
+ sha1_start((hctx *)base);
+}
+
+static void
+chash_mid(int type, void * base, const uschar * string)
+{
+if (type == HMAC_MD5)
+ md5_mid((md5 *)base, string);
+else
+ sha1_mid((hctx *)base, string);
+}
+
+static void
+chash_end(int type, void * base, const uschar * string, int length,
+ uschar * digest)
+{
+if (type == HMAC_MD5)
+ md5_end((md5 *)base, string, length, digest);
+else
+ sha1_end((hctx *)base, string, length, digest);
+}
+
+
+
+
+#ifdef EXPERIMENTAL_SRS_NATIVE
+/* Do an hmac_md5. The result is _not_ nul-terminated, and is sized as
+the smaller of a full hmac_md5 result (16 bytes) or the supplied output buffer.
+
+Arguments:
+ key encoding key, nul-terminated
+ src data to be hashed, nul-terminated
+ buf output buffer
+ len size of output buffer
+*/
+
+static void
+hmac_md5(const uschar * key, const uschar * src, uschar * buf, unsigned len)
+{
+md5 md5_base;
+const uschar * keyptr;
+uschar * p;
+unsigned int keylen;
+
+#define MD5_HASHLEN 16
+#define MD5_HASHBLOCKLEN 64
+
+uschar keyhash[MD5_HASHLEN];
+uschar innerhash[MD5_HASHLEN];
+uschar finalhash[MD5_HASHLEN];
+uschar innerkey[MD5_HASHBLOCKLEN];
+uschar outerkey[MD5_HASHBLOCKLEN];
+
+keyptr = key;
+keylen = Ustrlen(keyptr);
+
+/* If the key is longer than the hash block length, then hash the key
+first */
+
+if (keylen > MD5_HASHBLOCKLEN)
+ {
+ chash_start(HMAC_MD5, &md5_base);
+ chash_end(HMAC_MD5, &md5_base, keyptr, keylen, keyhash);
+ keyptr = keyhash;
+ keylen = MD5_HASHLEN;
+ }
+
+/* Now make the inner and outer key values */
+
+memset(innerkey, 0x36, MD5_HASHBLOCKLEN);
+memset(outerkey, 0x5c, MD5_HASHBLOCKLEN);
+
+for (int i = 0; i < keylen; i++)
+ {
+ innerkey[i] ^= keyptr[i];
+ outerkey[i] ^= keyptr[i];
+ }
+
+/* Now do the hashes */
+
+chash_start(HMAC_MD5, &md5_base);
+chash_mid(HMAC_MD5, &md5_base, innerkey);
+chash_end(HMAC_MD5, &md5_base, src, Ustrlen(src), innerhash);
+
+chash_start(HMAC_MD5, &md5_base);
+chash_mid(HMAC_MD5, &md5_base, outerkey);
+chash_end(HMAC_MD5, &md5_base, innerhash, MD5_HASHLEN, finalhash);
+
+/* Encode the final hash as a hex string, limited by output buffer size */
+
+p = buf;
+for (int i = 0, j = len; i < MD5_HASHLEN; i++)
+ {
+ if (j-- <= 0) break;
+ *p++ = hex_digits[(finalhash[i] & 0xf0) >> 4];
+ if (j-- <= 0) break;
+ *p++ = hex_digits[finalhash[i] & 0x0f];
+ }
+return;
+}
+#endif /*EXPERIMENTAL_SRS_NATIVE*/
+
+
/*************************************************
* Read and evaluate a condition *
*************************************************/
int rc, cond_type, roffset;
int_eximarith_t num[2];
struct stat statbuf;
+uschar * opname;
uschar name[256];
const uschar *sub[10];
const uschar *rerror;
for (;;)
- {
- while (isspace(*s)) s++;
- if (*s == '!') { testfor = !testfor; s++; } else break;
- }
-
-/* Numeric comparisons are symbolic */
-
-if (*s == '=' || *s == '>' || *s == '<')
- {
- int p = 0;
- name[p++] = *s++;
- if (*s == '=')
- {
- name[p++] = '=';
- s++;
- }
- name[p] = 0;
- }
+ if (Uskip_whitespace(&s) == '!') { testfor = !testfor; s++; } else break;
-/* All other conditions are named */
-
-else s = read_name(name, 256, s, US"_");
-
-/* If we haven't read a name, it means some non-alpha character is first. */
-
-if (name[0] == 0)
- {
- expand_string_message = string_sprintf("condition name expected, "
- "but found \"%.16s\"", s);
- return NULL;
- }
-
-/* Find which condition we are dealing with, and switch on it */
-
-cond_type = chop_match(name, cond_table, nelem(cond_table));
-switch(cond_type)
+switch(cond_type = identify_operator(&s, &opname))
{
/* def: tests for a non-empty variable, or for the existence of a header. If
yield == NULL we are in a skipping state, and don't care about the answer. */
return NULL;
}
- s = read_name(name, 256, s+1, US"_");
+ s = read_name(name, sizeof(name), s+1, US"_");
/* Test for a header's existence. If the name contains a closing brace
character, this may be a user error where the terminating colon has been
&& (*++t == '_' || Ustrncmp(t, "eader_", 6) == 0)
)
{
- s = read_header_name(name, 256, s);
+ s = read_header_name(name, sizeof(name), s);
/* {-for-text-editors */
if (Ustrchr(name, '}') != NULL) malformed_header = TRUE;
if (yield) *yield =
{
if (!(t = find_variable(name, TRUE, yield == NULL, NULL)))
{
- expand_string_message = (name[0] == 0)?
- string_sprintf("variable name omitted after \"def:\"") :
- string_sprintf("unknown variable \"%s\" after \"def:\"", name);
+ expand_string_message = name[0]
+ ? string_sprintf("unknown variable \"%s\" after \"def:\"", name)
+ : US"variable name omitted after \"def:\"";
check_variable_error_message(name);
return NULL;
}
/* first_delivery tests for first delivery attempt */
case ECOND_FIRST_DELIVERY:
- if (yield != NULL) *yield = f.deliver_firsttime == testfor;
+ if (yield) *yield = f.deliver_firsttime == testfor;
return s;
/* queue_running tests for any process started by a queue runner */
case ECOND_QUEUE_RUNNING:
- if (yield != NULL) *yield = (queue_run_pid != (pid_t)0) == testfor;
+ if (yield) *yield = (queue_run_pid != (pid_t)0) == testfor;
return s;
case ECOND_LDAPAUTH:
case ECOND_PWCHECK:
- while (isspace(*s)) s++;
- if (*s != '{') goto COND_FAILED_CURLY_START; /* }-for-text-editors */
+ if (Uskip_whitespace(&s) != '{') goto COND_FAILED_CURLY_START; /* }-for-text-editors */
sub[0] = expand_string_internal(s+1, TRUE, &s, yield == NULL, TRUE, resetok);
- if (sub[0] == NULL) return NULL;
+ if (!sub[0]) return NULL;
/* {-for-text-editors */
if (*s++ != '}') goto COND_FAILED_CURLY_END;
- if (yield == NULL) return s; /* No need to run the test if skipping */
+ if (!yield) return s; /* No need to run the test if skipping */
switch(cond_type)
{
uschar *user_msg;
BOOL cond = FALSE;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{') goto COND_FAILED_CURLY_START; /*}*/
switch(read_subs(sub, nelem(sub), 1,
- &s, yield == NULL, TRUE, US"acl", resetok))
+ &s, yield == NULL, TRUE, name, resetok))
{
case 1: expand_string_message = US"too few arguments or bracketing "
"error for acl";
case 3: return NULL;
}
- if (yield != NULL)
+ if (yield)
{
+ int rc;
*resetok = FALSE; /* eval_acl() might allocate; do not reclaim */
- switch(eval_acl(sub, nelem(sub), &user_msg))
+ switch(rc = eval_acl(sub, nelem(sub), &user_msg))
{
case OK:
cond = TRUE;
f.expand_string_forcedfail = TRUE;
/*FALLTHROUGH*/
default:
- expand_string_message = string_sprintf("error from acl \"%s\"", sub[0]);
+ expand_string_message = string_sprintf("%s from acl \"%s\"",
+ rc_names[rc], sub[0]);
return NULL;
}
}
#else
{
uschar *sub[4];
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{') goto COND_FAILED_CURLY_START; /* }-for-text-editors */
- switch(read_subs(sub, nelem(sub), 2, &s, yield == NULL, TRUE, US"saslauthd",
+ switch(read_subs(sub, nelem(sub), 2, &s, yield == NULL, TRUE, name,
resetok))
{
case 1: expand_string_message = US"too few arguments or bracketing "
case 2:
case 3: return NULL;
}
- if (sub[2] == NULL) sub[3] = NULL; /* realm if no service */
- if (yield != NULL)
+ if (!sub[2]) sub[3] = NULL; /* realm if no service */
+ if (yield)
{
int rc = auth_call_saslauthd(sub[0], sub[1], sub[2], sub[3],
&expand_string_message);
if ((i > 0) && !sub2_honour_dollar)
honour_dollar = FALSE;
- while (isspace(*s)) s++;
- if (*s != '{')
+ if (Uskip_whitespace(&s) != '{')
{
if (i == 0) goto COND_FAILED_CURLY_START;
expand_string_message = string_sprintf("missing 2nd string in {} "
- "after \"%s\"", name);
+ "after \"%s\"", opname);
return NULL;
}
if (!(sub[i] = expand_string_internal(s+1, TRUE, &s, yield == NULL,
conditions that compare numbers do not start with a letter. This just saves
checking for them individually. */
- if (!isalpha(name[0]) && yield != NULL)
+ if (!isalpha(opname[0]) && yield)
if (sub[i][0] == 0)
{
num[i] = 0;
else
{
num[i] = expanded_string_integer(sub[i], FALSE);
- if (expand_string_message != NULL) return NULL;
+ if (expand_string_message) return NULL;
}
}
/* Result not required */
- if (yield == NULL) return s;
+ if (!yield) return s;
/* Do an appropriate comparison */
break;
case ECOND_MATCH: /* Regular expression match */
- re = pcre_compile(CS sub[1], PCRE_COPT, (const char **)&rerror, &roffset,
- NULL);
- if (re == NULL)
+ if (!(re = pcre_compile(CS sub[1], PCRE_COPT, CCSS &rerror,
+ &roffset, NULL)))
{
expand_string_message = string_sprintf("regular expression error in "
"\"%s\": %s at offset %d", sub[1], rerror, roffset);
uschar *save_iterate_item = iterate_item;
int (*compare)(const uschar *, const uschar *);
- DEBUG(D_expand) debug_printf_indent("condition: %s item: %s\n", name, sub[0]);
+ DEBUG(D_expand) debug_printf_indent("condition: %s item: %s\n", opname, sub[0]);
tempcond = FALSE;
compare = cond_type == ECOND_INLISTI
case ECOND_AND:
case ECOND_OR:
- subcondptr = (yield == NULL)? NULL : &tempcond;
+ subcondptr = (yield == NULL) ? NULL : &tempcond;
combined_cond = (cond_type == ECOND_AND);
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{') goto COND_FAILED_CURLY_START; /* }-for-text-editors */
for (;;)
{
- while (isspace(*s)) s++;
/* {-for-text-editors */
- if (*s == '}') break;
+ if (Uskip_whitespace(&s) == '}') break;
if (*s != '{') /* }-for-text-editors */
{
expand_string_message = string_sprintf("each subcondition "
- "inside an \"%s{...}\" condition must be in its own {}", name);
+ "inside an \"%s{...}\" condition must be in its own {}", opname);
return NULL;
}
if (!(s = eval_condition(s+1, resetok, subcondptr)))
{
expand_string_message = string_sprintf("%s inside \"%s{...}\" condition",
- expand_string_message, name);
+ expand_string_message, opname);
return NULL;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
/* {-for-text-editors */
if (*s++ != '}')
{
/* {-for-text-editors */
expand_string_message = string_sprintf("missing } at end of condition "
- "inside \"%s\" group", name);
+ "inside \"%s\" group", opname);
return NULL;
}
- if (yield != NULL)
- {
+ if (yield)
if (cond_type == ECOND_AND)
{
combined_cond &= tempcond;
combined_cond |= tempcond;
if (combined_cond) subcondptr = NULL; /* once true, don't */
} /* evaluate any more */
- }
}
- if (yield != NULL) *yield = (combined_cond == testfor);
+ if (yield) *yield = (combined_cond == testfor);
return ++s;
int sep = 0;
uschar *save_iterate_item = iterate_item;
- DEBUG(D_expand) debug_printf_indent("condition: %s\n", name);
+ DEBUG(D_expand) debug_printf_indent("condition: %s\n", opname);
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{') goto COND_FAILED_CURLY_START; /* }-for-text-editors */
- sub[0] = expand_string_internal(s, TRUE, &s, (yield == NULL), TRUE, resetok);
- if (sub[0] == NULL) return NULL;
+ if (!(sub[0] = expand_string_internal(s, TRUE, &s, yield == NULL, TRUE, resetok)))
+ return NULL;
/* {-for-text-editors */
if (*s++ != '}') goto COND_FAILED_CURLY_END;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{') goto COND_FAILED_CURLY_START; /* }-for-text-editors */
sub[1] = s;
if (!(s = eval_condition(sub[1], resetok, NULL)))
{
expand_string_message = string_sprintf("%s inside \"%s\" condition",
- expand_string_message, name);
+ expand_string_message, opname);
return NULL;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
/* {-for-text-editors */
if (*s++ != '}')
{
/* {-for-text-editors */
expand_string_message = string_sprintf("missing } at end of condition "
- "inside \"%s\"", name);
+ "inside \"%s\"", opname);
return NULL;
}
return NULL;
}
- DEBUG(D_expand) debug_printf_indent("%s: $item = \"%s\"\n", name, iterate_item);
+ DEBUG(D_expand) debug_printf_indent("%s: $item = \"%s\"\n", opname, iterate_item);
if (!eval_condition(sub[1], resetok, &tempcond))
{
expand_string_message = string_sprintf("%s inside \"%s\" condition",
- expand_string_message, name);
+ expand_string_message, opname);
iterate_item = save_iterate_item;
return NULL;
}
- DEBUG(D_expand) debug_printf_indent("%s: condition evaluated to %s\n", name,
+ DEBUG(D_expand) debug_printf_indent("%s: condition evaluated to %s\n", opname,
tempcond? "true":"false");
if (yield) *yield = (tempcond == testfor);
uschar *ourname;
size_t len;
BOOL boolvalue = FALSE;
- while (isspace(*s)) s++;
- if (*s != '{') goto COND_FAILED_CURLY_START; /* }-for-text-editors */
+
+ if (Uskip_whitespace(&s) != '{') goto COND_FAILED_CURLY_START; /* }-for-text-editors */
ourname = cond_type == ECOND_BOOL_LAX ? US"bool_lax" : US"bool";
switch(read_subs(sub_arg, 1, 1, &s, yield == NULL, FALSE, ourname, resetok))
{
case 3: return NULL;
}
t = sub_arg[0];
- while (isspace(*t)) t++;
- len = Ustrlen(t);
- if (len)
+ Uskip_whitespace(&t);
+ if ((len = Ustrlen(t)))
{
/* trailing whitespace: seems like a good idea to ignore it too */
t2 = t + len - 1;
}
DEBUG(D_expand) debug_printf_indent("%s: condition evaluated to %s\n", ourname,
boolvalue? "true":"false");
- if (yield != NULL) *yield = (boolvalue == testfor);
+ if (yield) *yield = (boolvalue == testfor);
+ return s;
+ }
+
+#ifdef EXPERIMENTAL_SRS_NATIVE
+ case ECOND_INBOUND_SRS:
+ /* ${if inbound_srs {local_part}{secret} {yes}{no}} */
+ {
+ uschar * sub[2];
+ const pcre * re;
+ int ovec[3*(4+1)];
+ int n;
+ uschar cksum[4];
+ BOOL boolvalue = FALSE;
+
+ switch(read_subs(sub, 2, 2, CUSS &s, yield == NULL, FALSE, name, resetok))
+ {
+ case 1: expand_string_message = US"too few arguments or bracketing "
+ "error for inbound_srs";
+ case 2:
+ case 3: return NULL;
+ }
+
+ /* Match the given local_part against the SRS-encoded pattern */
+
+ re = regex_must_compile(US"^(?i)SRS0=([^=]+)=([A-Z2-7]+)=([^=]*)=(.*)$",
+ TRUE, FALSE);
+ if (pcre_exec(re, NULL, CS sub[0], Ustrlen(sub[0]), 0, PCRE_EOPT,
+ ovec, nelem(ovec)) < 0)
+ {
+ DEBUG(D_expand) debug_printf("no match for SRS'd local-part pattern\n");
+ goto srs_result;
+ }
+
+ /* Side-effect: record the decoded recipient */
+
+ srs_recipient = string_sprintf("%.*S@%.*S", /* lowercased */
+ ovec[9]-ovec[8], sub[0] + ovec[8], /* substring 4 */
+ ovec[7]-ovec[6], sub[0] + ovec[6]); /* substring 3 */
+
+ /* If a zero-length secret was given, we're done. Otherwise carry on
+ and validate the given SRS local_part againt our secret. */
+
+ if (!*sub[1])
+ {
+ boolvalue = TRUE;
+ goto srs_result;
+ }
+
+ /* check the timestamp */
+ {
+ struct timeval now;
+ uschar * ss = sub[0] + ovec[4]; /* substring 2, the timestamp */
+ long d;
+
+ gettimeofday(&now, NULL);
+ now.tv_sec /= 86400; /* days since epoch */
+
+ /* Decode substring 2 from base32 to a number */
+
+ for (d = 0, n = ovec[5]-ovec[4]; n; n--)
+ {
+ uschar * t = Ustrchr(base32_chars, *ss++);
+ d = d * 32 + (t - base32_chars);
+ }
+
+ if (((now.tv_sec - d) & 0x3ff) > 10) /* days since SRS generated */
+ {
+ DEBUG(D_expand) debug_printf("SRS too old\n");
+ goto srs_result;
+ }
+ }
+
+ /* check length of substring 1, the offered checksum */
+
+ if (ovec[3]-ovec[2] != 4)
+ {
+ DEBUG(D_expand) debug_printf("SRS checksum wrong size\n");
+ goto srs_result;
+ }
+
+ /* Hash the address with our secret, and compare that computed checksum
+ with the one extracted from the arg */
+
+ hmac_md5(sub[1], srs_recipient, cksum, sizeof(cksum));
+ if (Ustrncmp(cksum, sub[0] + ovec[2], 4) != 0)
+ {
+ DEBUG(D_expand) debug_printf("SRS checksum mismatch\n");
+ goto srs_result;
+ }
+ boolvalue = TRUE;
+
+srs_result:
+ if (yield) *yield = (boolvalue == testfor);
return s;
}
+#endif /*EXPERIMENTAL_SRS_NATIVE*/
/* Unknown condition */
default:
- expand_string_message = string_sprintf("unknown condition \"%s\"", name);
- return NULL;
+ if (!expand_string_message || !*expand_string_message)
+ expand_string_message = string_sprintf("unknown condition \"%s\"", opname);
+ return NULL;
} /* End switch on condition type */
/* Missing braces at start and end of data */
COND_FAILED_CURLY_START:
-expand_string_message = string_sprintf("missing { after \"%s\"", name);
+expand_string_message = string_sprintf("missing { after \"%s\"", opname);
return NULL;
COND_FAILED_CURLY_END:
expand_string_message = string_sprintf("missing } at end of \"%s\" condition",
- name);
+ opname);
return NULL;
/* A condition requires code that is not compiled */
!defined(SUPPORT_CRYPTEQ) || !defined(CYRUS_SASLAUTHD_SOCKET)
COND_FAILED_NOT_COMPILED:
expand_string_message = string_sprintf("support for \"%s\" not compiled",
- name);
+ opname);
return NULL;
#endif
}
"true" is substituted. In the fail case, nothing is substituted for all three
items. */
-while (isspace(*s)) s++;
-if (*s == '}')
+if (skip_whitespace(&s) == '}')
{
if (type[0] == 'i')
{
set skipping in the nested call if we don't want this string, or if we were
already skipping. */
-while (isspace(*s)) s++;
-if (*s == '{')
+if (skip_whitespace(&s) == '{')
{
sub2 = expand_string_internal(s+1, TRUE, &s, yes || skipping, TRUE, resetok);
if (sub2 == NULL && (!yes || !f.expand_string_forcedfail)) goto FAILED;
{
if (!yes && !skipping)
{
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '}')
{
errwhere = US"did not close with '}' after forcedfail";
/* All we have to do now is to check on the final closing brace. */
-while (isspace(*s)) s++;
+skip_whitespace(&s);
if (*s++ != '}')
{
errwhere = US"did not close with '}'";
rc = 2;
goto RETURN;
-FAILED:
- /* Get here for other failures */
- rc = 1;
- goto RETURN;
-}
-
-
-
-
-/*************************************************
-* Handle MD5 or SHA-1 computation for HMAC *
-*************************************************/
-
-/* These are some wrapping functions that enable the HMAC code to be a bit
-cleaner. A good compiler will spot the tail recursion.
-
-Arguments:
- type HMAC_MD5 or HMAC_SHA1
- remaining are as for the cryptographic hash functions
-
-Returns: nothing
-*/
-
-static void
-chash_start(int type, void *base)
-{
-if (type == HMAC_MD5)
- md5_start((md5 *)base);
-else
- sha1_start((hctx *)base);
-}
-
-static void
-chash_mid(int type, void *base, uschar *string)
-{
-if (type == HMAC_MD5)
- md5_mid((md5 *)base, string);
-else
- sha1_mid((hctx *)base, string);
-}
-
-static void
-chash_end(int type, void *base, uschar *string, int length, uschar *digest)
-{
-if (type == HMAC_MD5)
- md5_end((md5 *)base, string, length, digest);
-else
- sha1_end((hctx *)base, string, length, digest);
+FAILED:
+ /* Get here for other failures */
+ rc = 1;
+ goto RETURN;
}
-
/********************************************************
* prvs: Get last three digits of days since Jan 1, 1970 *
********************************************************/
static uschar *
prvs_daystamp(int day_offset)
{
-uschar *days = store_get(32); /* Need at least 24 for cases */
+uschar *days = store_get(32, FALSE); /* Need at least 24 for cases */
(void)string_format(days, 32, TIME_T_FMT, /* where TIME_T_FMT is %lld */
(time(NULL) + day_offset*86400)/86400);
return (Ustrlen(days) >= 3) ? &days[Ustrlen(days)-3] : US"100";
uschar finalhash[20];
uschar innerkey[64];
uschar outerkey[64];
-uschar *finalhash_hex = store_get(40);
+uschar *finalhash_hex;
-if (key_num == NULL)
+if (!key_num)
key_num = US"0";
if (Ustrlen(key) > 64)
chash_mid(HMAC_SHA1, &h, outerkey);
chash_end(HMAC_SHA1, &h, innerhash, 20, finalhash);
-p = finalhash_hex;
+/* Hashing is deemed sufficient to de-taint any input data */
+
+p = finalhash_hex = store_get(40, FALSE);
for (int i = 0; i < 3; i++)
{
*p++ = hex_digits[(finalhash[i] & 0xf0) >> 4];
Returns: new pointer for expandable string, terminated if non-null
*/
-static gstring *
+gstring *
cat_file(FILE *f, gstring *yield, uschar *eol)
{
uschar buffer[1024];
}
-#ifdef SUPPORT_TLS
-static gstring *
+#ifndef DISABLE_TLS
+gstring *
cat_file_tls(void * tls_ctx, gstring * yield, uschar * eol)
{
int rc;
{
uschar *s = *sptr;
int_eximarith_t x = eval_op_or(&s, decimal, error);
-if (*error == NULL)
- {
+
+if (!*error)
if (endket)
- {
if (*s != ')')
*error = US"expecting closing parenthesis";
else
- while (isspace(*(++s)));
- }
- else if (*s != 0) *error = US"expecting operator";
- }
+ while (isspace(*++s));
+ else if (*s)
+ *error = US"expecting operator";
*sptr = s;
return x;
}
static int_eximarith_t
eval_number(uschar **sptr, BOOL decimal, uschar **error)
{
-register int c;
+int c;
int_eximarith_t n;
uschar *s = *sptr;
-while (isspace(*s)) s++;
-c = *s;
-if (isdigit(c))
+
+if (isdigit((c = Uskip_whitespace(&s))))
{
int count;
(void)sscanf(CS s, (decimal? SC_EXIM_DEC "%n" : SC_EXIM_ARITH "%n"), &n, &count);
case 'm': n *= 1024*1024; s++; break;
case 'g': n *= 1024*1024*1024; s++; break;
}
- while (isspace (*s)) s++;
+ Uskip_whitespace(&s);
}
else if (c == '(')
{
{
uschar *s = *sptr;
int_eximarith_t x;
-while (isspace(*s)) s++;
+Uskip_whitespace(&s);
if (*s == '+' || *s == '-' || *s == '~')
{
int op = *s++;
else if (op == '~') x = ~x;
}
else
- {
x = eval_number(&s, decimal, error);
- }
+
*sptr = s;
return x;
}
{
uschar *s = *sptr;
int_eximarith_t x = eval_op_unary(&s, decimal, error);
-if (*error == NULL)
+if (!*error)
{
while (*s == '*' || *s == '/' || *s == '%')
{
int op = *s++;
int_eximarith_t y = eval_op_unary(&s, decimal, error);
- if (*error != NULL) break;
+ if (*error) break;
/* SIGFPE both on div/mod by zero and on INT_MIN / -1, which would give
* a value of INT_MAX+1. Note that INT_MIN * -1 gives INT_MIN for me, which
* is a bug somewhere in [gcc 4.2.1, FreeBSD, amd64]. In fact, -N*-M where
{
uschar *s = *sptr;
int_eximarith_t x = eval_op_sum(&s, decimal, error);
-if (*error == NULL)
+if (!*error)
{
while ((*s == '<' || *s == '>') && s[1] == s[0])
{
int op = *s++;
s++;
y = eval_op_sum(&s, decimal, error);
- if (*error != NULL) break;
+ if (*error) break;
if (op == '<') x <<= y; else x >>= y;
}
}
{
uschar *s = *sptr;
int_eximarith_t x = eval_op_shift(&s, decimal, error);
-if (*error == NULL)
+if (!*error)
{
while (*s == '&')
{
int_eximarith_t y;
s++;
y = eval_op_shift(&s, decimal, error);
- if (*error != NULL) break;
+ if (*error) break;
x &= y;
}
}
{
uschar *s = *sptr;
int_eximarith_t x = eval_op_and(&s, decimal, error);
-if (*error == NULL)
+if (!*error)
{
while (*s == '^')
{
int_eximarith_t y;
s++;
y = eval_op_and(&s, decimal, error);
- if (*error != NULL) break;
+ if (*error) break;
x ^= y;
}
}
{
uschar *s = *sptr;
int_eximarith_t x = eval_op_xor(&s, decimal, error);
-if (*error == NULL)
+if (!*error)
{
while (*s == '|')
{
int_eximarith_t y;
s++;
y = eval_op_xor(&s, decimal, error);
- if (*error != NULL) break;
+ if (*error) break;
x |= y;
}
}
+/************************************************/
+/* Comparison operation for sort expansion. We need to avoid
+re-expanding the fields being compared, so need a custom routine.
+
+Arguments:
+ cond_type Comparison operator code
+ leftarg, rightarg Arguments for comparison
+
+Return true iff (leftarg compare rightarg)
+*/
+
+static BOOL
+sortsbefore(int cond_type, BOOL alpha_cond,
+ const uschar * leftarg, const uschar * rightarg)
+{
+int_eximarith_t l_num, r_num;
+
+if (!alpha_cond)
+ {
+ l_num = expanded_string_integer(leftarg, FALSE);
+ if (expand_string_message) return FALSE;
+ r_num = expanded_string_integer(rightarg, FALSE);
+ if (expand_string_message) return FALSE;
+
+ switch (cond_type)
+ {
+ case ECOND_NUM_G: return l_num > r_num;
+ case ECOND_NUM_GE: return l_num >= r_num;
+ case ECOND_NUM_L: return l_num < r_num;
+ case ECOND_NUM_LE: return l_num <= r_num;
+ default: break;
+ }
+ }
+else
+ switch (cond_type)
+ {
+ case ECOND_STR_LT: return Ustrcmp (leftarg, rightarg) < 0;
+ case ECOND_STR_LTI: return strcmpic(leftarg, rightarg) < 0;
+ case ECOND_STR_LE: return Ustrcmp (leftarg, rightarg) <= 0;
+ case ECOND_STR_LEI: return strcmpic(leftarg, rightarg) <= 0;
+ case ECOND_STR_GT: return Ustrcmp (leftarg, rightarg) > 0;
+ case ECOND_STR_GTI: return strcmpic(leftarg, rightarg) > 0;
+ case ECOND_STR_GE: return Ustrcmp (leftarg, rightarg) >= 0;
+ case ECOND_STR_GEI: return strcmpic(leftarg, rightarg) >= 0;
+ default: break;
+ }
+return FALSE; /* should not happen */
+}
+
+
/*************************************************
* Expand string *
*************************************************/
expand_string_internal(const uschar *string, BOOL ket_ends, const uschar **left,
BOOL skipping, BOOL honour_dollar, BOOL *resetok_p)
{
+rmark reset_point = store_mark();
gstring * yield = string_get(Ustrlen(string) + 64);
int item_type;
const uschar *s = string;
f.expand_string_forcedfail = FALSE;
expand_string_message = US"";
+{ uschar *m;
+if (m = is_tainted2(string, LOG_MAIN|LOG_PANIC, "Tainted string '%s' in expansion", s))
+ {
+ expand_string_message = m;
+ goto EXPAND_FAILED;
+ }
+}
+
while (*s != 0)
{
uschar *value;
buffer. */
if (!yield)
- g = store_get(sizeof(gstring));
+ g = store_get(sizeof(gstring), FALSE);
else if (yield->ptr == 0)
{
- if (resetok) store_reset(yield);
+ if (resetok) reset_point = store_reset(reset_point);
yield = NULL;
- g = store_get(sizeof(gstring)); /* alloc _before_ calling find_variable() */
+ reset_point = store_mark();
+ g = store_get(sizeof(gstring), FALSE); /* alloc _before_ calling find_variable() */
}
/* Header */
if (!value)
{
- if (Ustrchr(name, '}') != NULL) malformed_header = TRUE;
+ if (Ustrchr(name, '}')) malformed_header = TRUE;
continue;
}
}
{
uschar *sub[10]; /* name + arg1-arg9 (which must match number of acl_arg[]) */
uschar *user_msg;
+ int rc;
- switch(read_subs(sub, nelem(sub), 1, &s, skipping, TRUE, US"acl",
+ switch(read_subs(sub, nelem(sub), 1, &s, skipping, TRUE, name,
&resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
if (skipping) continue;
resetok = FALSE;
- switch(eval_acl(sub, nelem(sub), &user_msg))
+ switch(rc = eval_acl(sub, nelem(sub), &user_msg))
{
case OK:
case FAIL:
f.expand_string_forcedfail = TRUE;
/*FALLTHROUGH*/
default:
- expand_string_message = string_sprintf("error from acl \"%s\"", sub[0]);
+ expand_string_message = string_sprintf("%s from acl \"%s\"",
+ rc_names[rc], sub[0]);
goto EXPAND_FAILED;
}
}
#ifndef DISABLE_DKIM
yield = authres_dkim(yield);
#endif
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
yield = authres_dmarc(yield);
#endif
#ifdef EXPERIMENTAL_ARC
int save_expand_nmax =
save_expand_strings(save_expand_nstring, save_expand_nlength);
- while (isspace(*s)) s++;
- next_s = eval_condition(s, &resetok, skipping ? NULL : &cond);
- if (next_s == NULL) goto EXPAND_FAILED; /* message already set */
+ Uskip_whitespace(&s);
+ if (!(next_s = eval_condition(s, &resetok, skipping ? NULL : &cond)))
+ goto EXPAND_FAILED; /* message already set */
DEBUG(D_expand)
DEBUG(D_noutf8)
case 3: goto EXPAND_FAILED;
}
- if (sub_arg[1] == NULL) /* One argument */
+ if (!sub_arg[1]) /* One argument */
{
sub_arg[1] = US"/"; /* default separator */
sub_arg[2] = NULL;
int expand_setup = 0;
int nameptr = 0;
uschar *key, *filename;
- const uschar *affix;
+ const uschar * affix, * opts;
uschar *save_lookup_value = lookup_value;
int save_expand_nmax =
save_expand_strings(save_expand_nstring, save_expand_nlength);
/* Get the key we are to look up for single-key+file style lookups.
Otherwise set the key NULL pro-tem. */
- while (isspace(*s)) s++;
- if (*s == '{') /*}*/
+ if (Uskip_whitespace(&s) == '{') /*}*/
{
key = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok);
if (!key) goto EXPAND_FAILED; /*{{*/
expand_string_message = US"missing '}' after lookup key";
goto EXPAND_FAILED_CURLY;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
}
else key = NULL;
kinds. Allow everything except space or { to appear; the actual content
is checked by search_findtype_partial. */ /*}*/
- while (*s != 0 && *s != '{' && !isspace(*s)) /*}*/
+ while (*s && *s != '{' && !isspace(*s)) /*}*/
{
if (nameptr < sizeof(name) - 1) name[nameptr++] = *s;
s++;
}
- name[nameptr] = 0;
- while (isspace(*s)) s++;
+ name[nameptr] = '\0';
+ Uskip_whitespace(&s);
/* Now check for the individual search type and any partial or default
options. Only those types that are actually in the binary are valid. */
- stype = search_findtype_partial(name, &partial, &affix, &affixlen,
- &starflags);
- if (stype < 0)
+ if ((stype = search_findtype_partial(name, &partial, &affix, &affixlen,
+ &starflags, &opts)) < 0)
{
expand_string_message = search_error_message;
goto EXPAND_FAILED;
if (!mac_islookup(stype, lookup_querystyle|lookup_absfilequery))
{
- if (key == NULL)
+ if (!key)
{
expand_string_message = string_sprintf("missing {key} for single-"
"key \"%s\" lookup", name);
}
else
{
- if (key != NULL)
+ if (key)
{
expand_string_message = string_sprintf("a single key was given for "
"lookup type \"%s\", which is not a single-key lookup type", name);
expand_string_message = US"missing '{' for lookup file-or-query arg";
goto EXPAND_FAILED_CURLY;
}
- filename = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok);
- if (filename == NULL) goto EXPAND_FAILED;
+ if (!(filename = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok)))
+ goto EXPAND_FAILED;
if (*s++ != '}')
{
expand_string_message = US"missing '}' closing lookup file-or-query arg";
goto EXPAND_FAILED_CURLY;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
/* If this isn't a single-key+file lookup, re-arrange the variables
to be appropriate for the search_ functions. For query-style lookups,
if (!key)
{
- while (isspace(*filename)) filename++;
+ Uskip_whitespace(&filename);
key = filename;
if (mac_islookup(stype, lookup_querystyle))
filename = NULL;
else
- {
- if (*filename != '/')
- {
- expand_string_message = string_sprintf(
- "absolute file name expected for \"%s\" lookup", name);
- goto EXPAND_FAILED;
- }
- while (*key != 0 && !isspace(*key)) key++;
- if (*key != 0) *key++ = 0;
- }
+ if (*filename == '/')
+ {
+ while (*key && !isspace(*key)) key++;
+ if (*key) *key++ = '\0';
+ }
+ else
+ filename = NULL;
}
/* If skipping, don't do the next bit - just lookup_value == NULL, as if
else
{
void *handle = search_open(filename, stype, 0, NULL, NULL);
- if (handle == NULL)
+ if (!handle)
{
expand_string_message = search_error_message;
goto EXPAND_FAILED;
}
lookup_value = search_find(handle, filename, key, partial, affix,
- affixlen, starflags, &expand_setup);
+ affixlen, starflags, &expand_setup, opts);
if (f.search_find_defer)
{
expand_string_message =
string_sprintf("lookup of \"%s\" gave DEFER: %s",
- string_printing2(key, FALSE), search_error_message);
+ string_printing2(key, SP_TAB), search_error_message);
goto EXPAND_FAILED;
}
if (expand_setup > 0) expand_nmax = expand_setup;
}
switch(read_subs(sub_arg, EXIM_PERL_MAX_ARGS + 1, 1, &s, skipping, TRUE,
- US"perl", &resetok))
+ name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
if (!opt_perl_started)
{
uschar *initerror;
- if (opt_perl_startup == NULL)
+ if (!opt_perl_startup)
{
expand_string_message = US"A setting of perl_startup is needed when "
"using the Perl interpreter";
goto EXPAND_FAILED;
}
DEBUG(D_any) debug_printf("Starting Perl interpreter\n");
- initerror = init_perl(opt_perl_startup);
- if (initerror != NULL)
+ if ((initerror = init_perl(opt_perl_startup)))
{
expand_string_message =
string_sprintf("error in perl_startup code: %s\n", initerror);
NULL, the yield was undef, indicating a forced failure. Otherwise the
message will indicate some kind of Perl error. */
- if (new_yield == NULL)
+ if (!new_yield)
{
- if (expand_string_message == NULL)
+ if (!expand_string_message)
{
expand_string_message =
string_sprintf("Perl subroutine \"%s\" returned undef to force "
uschar *sub_arg[3];
uschar *p,*domain;
- switch(read_subs(sub_arg, 3, 2, &s, skipping, TRUE, US"prvs", &resetok))
+ switch(read_subs(sub_arg, 3, 2, &s, skipping, TRUE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
prvscheck_address = NULL;
prvscheck_keynum = NULL;
- switch(read_subs(sub_arg, 1, 1, &s, skipping, FALSE, US"prvs", &resetok))
+ switch(read_subs(sub_arg, 1, 1, &s, skipping, FALSE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
prvscheck_keynum = string_copy(key_num);
/* Now expand the second argument */
- switch(read_subs(sub_arg, 1, 1, &s, skipping, FALSE, US"prvs", &resetok))
+ switch(read_subs(sub_arg, 1, 1, &s, skipping, FALSE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
/* Now expand the final argument. We leave this till now so that
it can include $prvscheck_result. */
- switch(read_subs(sub_arg, 1, 0, &s, skipping, TRUE, US"prvs", &resetok))
+ switch(read_subs(sub_arg, 1, 0, &s, skipping, TRUE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
We need to make sure all subs are expanded first, so as to skip over
the entire item. */
- switch(read_subs(sub_arg, 2, 1, &s, skipping, TRUE, US"prvs", &resetok))
+ switch(read_subs(sub_arg, 2, 1, &s, skipping, TRUE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
goto EXPAND_FAILED;
}
- switch(read_subs(sub_arg, 2, 1, &s, skipping, TRUE, US"readfile", &resetok))
+ switch(read_subs(sub_arg, 2, 1, &s, skipping, TRUE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
case EITEM_READSOCK:
{
- int fd;
- int timeout = 5;
- int save_ptr = yield->ptr;
- FILE * fp;
uschar * arg;
uschar * sub_arg[4];
- uschar * server_name = NULL;
- host_item host;
- BOOL do_shutdown = TRUE;
- BOOL do_tls = FALSE; /* Only set under SUPPORT_TLS */
- void * tls_ctx = NULL; /* ditto */
- blob reqstr;
if (expand_forbid & RDO_READSOCK)
{
/* Read up to 4 arguments, but don't do the end of item check afterwards,
because there may be a string for expansion on failure. */
- switch(read_subs(sub_arg, 4, 2, &s, skipping, FALSE, US"readsocket", &resetok))
+ switch(read_subs(sub_arg, 4, 2, &s, skipping, FALSE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2: /* Won't occur: no end check */
case 3: goto EXPAND_FAILED;
}
- /* Grab the request string, if any */
-
- reqstr.data = sub_arg[1];
- reqstr.len = Ustrlen(sub_arg[1]);
-
- /* Sort out timeout, if given. The second arg is a list with the first element
- being a time value. Any more are options of form "name=value". Currently the
- only option recognised is "shutdown". */
-
- if (sub_arg[2])
- {
- const uschar * list = sub_arg[2];
- uschar * item;
- int sep = 0;
-
- item = string_nextinlist(&list, &sep, NULL, 0);
- if ((timeout = readconf_readtime(item, 0, FALSE)) < 0)
- {
- expand_string_message = string_sprintf("bad time value %s", item);
- goto EXPAND_FAILED;
- }
-
- while ((item = string_nextinlist(&list, &sep, NULL, 0)))
- if (Ustrncmp(item, US"shutdown=", 9) == 0)
- { if (Ustrcmp(item + 9, US"no") == 0) do_shutdown = FALSE; }
-#ifdef SUPPORT_TLS
- else if (Ustrncmp(item, US"tls=", 4) == 0)
- { if (Ustrcmp(item + 9, US"no") != 0) do_tls = TRUE; }
-#endif
- }
- else
- sub_arg[3] = NULL; /* No eol if no timeout */
-
/* If skipping, we don't actually do anything. Otherwise, arrange to
connect to either an IP or a Unix socket. */
if (!skipping)
{
- /* Handle an IP (internet) domain */
-
- if (Ustrncmp(sub_arg[0], "inet:", 5) == 0)
- {
- int port;
- uschar * port_name;
-
- server_name = sub_arg[0] + 5;
- port_name = Ustrrchr(server_name, ':');
-
- /* Sort out the port */
-
- if (!port_name)
- {
- expand_string_message =
- string_sprintf("missing port for readsocket %s", sub_arg[0]);
- goto EXPAND_FAILED;
- }
- *port_name++ = 0; /* Terminate server name */
-
- if (isdigit(*port_name))
- {
- uschar *end;
- port = Ustrtol(port_name, &end, 0);
- if (end != port_name + Ustrlen(port_name))
- {
- expand_string_message =
- string_sprintf("invalid port number %s", port_name);
- goto EXPAND_FAILED;
- }
- }
- else
- {
- struct servent *service_info = getservbyname(CS port_name, "tcp");
- if (!service_info)
- {
- expand_string_message = string_sprintf("unknown port \"%s\"",
- port_name);
- goto EXPAND_FAILED;
- }
- port = ntohs(service_info->s_port);
- }
-
- /*XXX we trust that the request is idempotent. Hmm. */
- fd = ip_connectedsocket(SOCK_STREAM, server_name, port, port,
- timeout, &host, &expand_string_message,
- do_tls ? NULL : &reqstr);
- callout_address = NULL;
- if (fd < 0)
- goto SOCK_FAIL;
- if (!do_tls)
- reqstr.len = 0;
- }
-
- /* Handle a Unix domain socket */
-
- else
- {
- struct sockaddr_un sockun; /* don't call this "sun" ! */
- int rc;
-
- if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) == -1)
- {
- expand_string_message = string_sprintf("failed to create socket: %s",
- strerror(errno));
- goto SOCK_FAIL;
- }
-
- sockun.sun_family = AF_UNIX;
- sprintf(sockun.sun_path, "%.*s", (int)(sizeof(sockun.sun_path)-1),
- sub_arg[0]);
- server_name = US sockun.sun_path;
-
- sigalrm_seen = FALSE;
- ALARM(timeout);
- rc = connect(fd, (struct sockaddr *)(&sockun), sizeof(sockun));
- ALARM_CLR(0);
- if (sigalrm_seen)
- {
- expand_string_message = US "socket connect timed out";
- goto SOCK_FAIL;
- }
- if (rc < 0)
- {
- expand_string_message = string_sprintf("failed to connect to socket "
- "%s: %s", sub_arg[0], strerror(errno));
- goto SOCK_FAIL;
- }
- host.name = server_name;
- host.address = US"";
- }
+ int stype = search_findtype(US"readsock", 8);
+ gstring * g = NULL;
+ void * handle;
+ int expand_setup = -1;
+ uschar * s;
- DEBUG(D_expand) debug_printf_indent("connected to socket %s\n", sub_arg[0]);
+ /* If the reqstr is empty, flag that and set a dummy */
-#ifdef SUPPORT_TLS
- if (do_tls)
+ if (!sub_arg[1][0])
{
- tls_support tls_dummy = {.sni=NULL};
- uschar * errstr;
-
- if (!(tls_ctx = tls_client_start(fd, &host, NULL, NULL,
-# ifdef SUPPORT_DANE
- NULL,
-# endif
- &tls_dummy, &errstr)))
- {
- expand_string_message = string_sprintf("TLS connect failed: %s", errstr);
- goto SOCK_FAIL;
- }
+ g = string_append_listele(g, ',', US"send=no");
+ sub_arg[1] = US"DUMMY";
}
-#endif
-
- /* Allow sequencing of test actions */
- if (f.running_in_test_harness) millisleep(100);
-
- /* Write the request string, if not empty or already done */
- if (reqstr.len)
- {
- DEBUG(D_expand) debug_printf_indent("writing \"%s\" to socket\n",
- reqstr.data);
- if ( (
-#ifdef SUPPORT_TLS
- tls_ctx ? tls_write(tls_ctx, reqstr.data, reqstr.len, FALSE) :
-#endif
- write(fd, reqstr.data, reqstr.len)) != reqstr.len)
- {
- expand_string_message = string_sprintf("request write to socket "
- "failed: %s", strerror(errno));
- goto SOCK_FAIL;
- }
- }
-
- /* Shut down the sending side of the socket. This helps some servers to
- recognise that it is their turn to do some work. Just in case some
- system doesn't have this function, make it conditional. */
+ /* Re-marshall the options */
-#ifdef SHUT_WR
- if (!tls_ctx && do_shutdown) shutdown(fd, SHUT_WR);
-#endif
+ if (sub_arg[2])
+ {
+ const uschar * list = sub_arg[2];
+ uschar * item;
+ int sep = 0;
+
+ /* First option has no tag and is timeout */
+ if ((item = string_nextinlist(&list, &sep, NULL, 0)))
+ g = string_append_listele(g, ',',
+ string_sprintf("timeout=%s", item));
+
+ /* The rest of the options from the expansion */
+ while ((item = string_nextinlist(&list, &sep, NULL, 0)))
+ g = string_append_listele(g, ',', item);
+
+ /* possibly plus an EOL string. Process with escapes, to protect
+ from list-processing. The only current user of eol= in search
+ options is the readsock expansion. */
+
+ if (sub_arg[3] && *sub_arg[3])
+ g = string_append_listele(g, ',',
+ string_sprintf("eol=%s",
+ string_printing2(sub_arg[3], SP_TAB|SP_SPACE)));
+ }
- if (f.running_in_test_harness) millisleep(100);
+ /* Gat a (possibly cached) handle for the connection */
- /* Now we need to read from the socket, under a timeout. The function
- that reads a file can be used. */
+ if (!(handle = search_open(sub_arg[0], stype, 0, NULL, NULL)))
+ {
+ if (*expand_string_message) goto EXPAND_FAILED;
+ expand_string_message = search_error_message;
+ search_error_message = NULL;
+ goto SOCK_FAIL;
+ }
- if (!tls_ctx)
- fp = fdopen(fd, "rb");
- sigalrm_seen = FALSE;
- ALARM(timeout);
- yield =
-#ifdef SUPPORT_TLS
- tls_ctx ? cat_file_tls(tls_ctx, yield, sub_arg[3]) :
-#endif
- cat_file(fp, yield, sub_arg[3]);
- ALARM_CLR(0);
+ /* Get (possibly cached) results for the lookup */
+ /* sspec: sub_arg[0] req: sub_arg[1] opts: g */
-#ifdef SUPPORT_TLS
- if (tls_ctx)
+ if ((s = search_find(handle, sub_arg[0], sub_arg[1], -1, NULL, 0, 0,
+ &expand_setup, string_from_gstring(g))))
+ yield = string_cat(yield, s);
+ else if (f.search_find_defer)
{
- tls_close(tls_ctx, TRUE);
- close(fd);
+ expand_string_message = search_error_message;
+ search_error_message = NULL;
+ goto SOCK_FAIL;
}
else
-#endif
- (void)fclose(fp);
-
- /* After a timeout, we restore the pointer in the result, that is,
- make sure we add nothing from the socket. */
-
- if (sigalrm_seen)
- {
- yield->ptr = save_ptr;
- expand_string_message = US "socket read timed out";
- goto SOCK_FAIL;
- }
+ { /* should not happen, at present */
+ expand_string_message = search_error_message;
+ search_error_message = NULL;
+ goto SOCK_FAIL;
+ }
}
/* The whole thing has worked (or we were skipping). If there is a
if (*s == '{')
{
- if (expand_string_internal(s+1, TRUE, &s, TRUE, TRUE, &resetok) == NULL)
+ if (!expand_string_internal(s+1, TRUE, &s, TRUE, TRUE, &resetok))
goto EXPAND_FAILED;
if (*s++ != '}')
{
expand_string_message = US"missing '}' closing failstring for readsocket";
goto EXPAND_FAILED_CURLY;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
}
READSOCK_DONE:
expand_string_message = US"missing '}' closing failstring for readsocket";
goto EXPAND_FAILED_CURLY;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
goto READSOCK_DONE;
}
goto EXPAND_FAILED;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s != '{')
{
expand_string_message = US"missing '{' for command arg of run";
goto EXPAND_FAILED_CURLY;
}
- arg = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok);
- if (arg == NULL) goto EXPAND_FAILED;
- while (isspace(*s)) s++;
+ if (!(arg = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok)))
+ goto EXPAND_FAILED;
+ Uskip_whitespace(&s);
if (*s++ != '}')
{
expand_string_message = US"missing '}' closing command arg of run";
/* Create the child process, making it a group leader. */
- if ((pid = child_open(USS argv, NULL, 0077, &fd_in, &fd_out, TRUE)) < 0)
+ if ((pid = child_open(USS argv, NULL, 0077, &fd_in, &fd_out, TRUE,
+ US"expand-run")) < 0)
{
expand_string_message =
string_sprintf("couldn't create child process: %s", strerror(errno));
{
if (sigalrm_seen || runrc == -256)
{
- expand_string_message = string_sprintf("command timed out");
+ expand_string_message = US"command timed out";
killpg(pid, SIGKILL); /* Kill the whole process group */
}
case EITEM_TR:
{
- int oldptr = yield->ptr;
+ int oldptr = gstring_length(yield);
int o2m;
uschar *sub[3];
- switch(read_subs(sub, 3, 3, &s, skipping, TRUE, US"tr", &resetok))
+ switch(read_subs(sub, 3, 3, &s, skipping, TRUE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
if (o2m >= 0) for (; oldptr < yield->ptr; oldptr++)
{
uschar *m = Ustrrchr(sub[1], yield->s[oldptr]);
- if (m != NULL)
+ if (m)
{
int o = m - sub[1];
yield->s[oldptr] = sub[2][(o < o2m)? o : o2m];
string to the last position and make ${length{n}{str}} equivalent to
${substr{0}{n}{str}}. See the defaults for val[] above. */
- if (sub[2] == NULL)
+ if (!sub[2])
{
sub[2] = sub[1];
sub[1] = NULL;
}
ret =
- (item_type == EITEM_HASH)?
- compute_hash(sub[2], val[0], val[1], &len) :
- (item_type == EITEM_NHASH)?
- compute_nhash(sub[2], val[0], val[1], &len) :
- extract_substr(sub[2], val[0], val[1], &len);
-
- if (ret == NULL) goto EXPAND_FAILED;
+ item_type == EITEM_HASH
+ ? compute_hash(sub[2], val[0], val[1], &len)
+ : item_type == EITEM_NHASH
+ ? compute_nhash(sub[2], val[0], val[1], &len)
+ : extract_substr(sub[2], val[0], val[1], &len);
+ if (!ret)
+ goto EXPAND_FAILED;
yield = string_catn(yield, ret, len);
continue;
}
int save_expand_nmax =
save_expand_strings(save_expand_nstring, save_expand_nlength);
- switch(read_subs(sub, 3, 3, &s, skipping, TRUE, US"sg", &resetok))
+ switch(read_subs(sub, 3, 3, &s, skipping, TRUE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
/* Compile the regular expression */
- re = pcre_compile(CS sub[1], PCRE_COPT, (const char **)&rerror, &roffset,
- NULL);
-
- if (re == NULL)
+ if (!(re = pcre_compile(CS sub[1], PCRE_COPT, CCSS &rerror,
+ &roffset, NULL)))
{
expand_string_message = string_sprintf("regular expression error in "
"\"%s\": %s at offset %d", sub[1], rerror, roffset);
/* Copy the characters before the match, plus the expanded insertion. */
yield = string_catn(yield, subject + moffset, ovector[0] - moffset);
- insert = expand_string(sub[2]);
- if (insert == NULL) goto EXPAND_FAILED;
+ if (!(insert = expand_string(sub[2])))
+ goto EXPAND_FAILED;
yield = string_cat(yield, insert);
moffset = ovector[1];
enum {extract_basic, extract_json, extract_jsons} fmt = extract_basic;
- while (isspace(*s)) s++;
-
/* Check for a format-variant specifier */
- if (*s != '{') /*}*/
+ if (Uskip_whitespace(&s) != '{') /*}*/
if (Ustrncmp(s, "json", 4) == 0)
if (*(s += 4) == 's')
{fmt = extract_jsons; s++;}
expand_string_message = US"missing '{' for arg of extract";
goto EXPAND_FAILED_CURLY;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
}
if ( Ustrncmp(s, "fail", 4) == 0 /*'{'*/
&& (s[4] == '}' || s[4] == ' ' || s[4] == '\t' || !s[4])
)
{
s += 4;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
} /*'{'*/
if (*s != '}')
{
else for (int i = 0, j = 2; i < j; i++) /* Read the proper number of arguments */
{
- while (isspace(*s)) s++;
- if (*s == '{') /*'}'*/
+ if (Uskip_whitespace(&s) == '{') /*'}'*/
{
- sub[i] = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok);
- if (sub[i] == NULL) goto EXPAND_FAILED; /*'{'*/
+ if (!(sub[i] = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok)))
+ goto EXPAND_FAILED; /*'{'*/
if (*s++ != '}')
{
expand_string_message = string_sprintf(
int x = 0;
uschar *p = sub[0];
- while (isspace(*p)) p++;
+ Uskip_whitespace(&p);
sub[0] = p;
len = Ustrlen(p);
if (Ustrcmp(item, sub[0]) == 0) /*XXX should be a UTF8-compare */
{
s = item + Ustrlen(item) + 1;
- while (isspace(*s)) s++;
- if (*s != ':')
+ if (Uskip_whitespace(&s) != ':')
{
- expand_string_message = string_sprintf(
- "missing object value-separator for extract json");
+ expand_string_message =
+ US"missing object value-separator for extract json";
goto EXPAND_FAILED_CURLY;
}
s++;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
lookup_value = s;
break;
}
for (int i = 0; i < 2; i++)
{
- while (isspace(*s)) s++;
- if (*s != '{') /*'}'*/
+ if (Uskip_whitespace(&s) != '{') /*'}'*/
{
expand_string_message = string_sprintf(
"missing '{' for arg %d of listextract", i+1);
int x = 0;
uschar *p = sub[0];
- while (isspace(*p)) p++;
+ Uskip_whitespace(&p);
sub[0] = p;
len = Ustrlen(p);
continue;
}
-#ifdef SUPPORT_TLS
+ case EITEM_LISTQUOTE:
+ {
+ uschar * sub[2];
+ switch(read_subs(sub, 2, 2, &s, skipping, TRUE, name, &resetok))
+ {
+ case 1: goto EXPAND_FAILED_CURLY;
+ case 2:
+ case 3: goto EXPAND_FAILED;
+ }
+ if (*sub[1]) for (uschar sep = *sub[0], c; c = *sub[1]; sub[1]++)
+ {
+ if (c == sep) yield = string_catn(yield, sub[1], 1);
+ yield = string_catn(yield, sub[1], 1);
+ }
+ else yield = string_catn(yield, US" ", 1);
+ continue;
+ }
+
+#ifndef DISABLE_TLS
case EITEM_CERTEXTRACT:
{
uschar *save_lookup_value = lookup_value;
save_expand_strings(save_expand_nstring, save_expand_nlength);
/* Read the field argument */
- while (isspace(*s)) s++;
- if (*s != '{') /*}*/
+ if (Uskip_whitespace(&s) != '{') /*}*/
{
expand_string_message = US"missing '{' for field arg of certextract";
goto EXPAND_FAILED_CURLY;
int len;
uschar *p = sub[0];
- while (isspace(*p)) p++;
+ Uskip_whitespace(&p);
sub[0] = p;
len = Ustrlen(p);
}
/* inspect the cert argument */
- while (isspace(*s)) s++;
- if (*s != '{') /*}*/
+ if (Uskip_whitespace(&s) != '{') /*}*/
{
expand_string_message = US"missing '{' for cert variable arg of certextract";
goto EXPAND_FAILED_CURLY;
save_expand_nlength);
continue;
}
-#endif /*SUPPORT_TLS*/
+#endif /*DISABLE_TLS*/
/* Handle list operations */
case EITEM_REDUCE:
{
int sep = 0;
- int save_ptr = yield->ptr;
+ int save_ptr = gstring_length(yield);
uschar outsep[2] = { '\0', '\0' };
const uschar *list, *expr, *temp;
uschar *save_iterate_item = iterate_item;
uschar *save_lookup_value = lookup_value;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{')
{
expand_string_message =
goto EXPAND_FAILED_CURLY;
}
- list = expand_string_internal(s, TRUE, &s, skipping, TRUE, &resetok);
- if (list == NULL) goto EXPAND_FAILED;
+ if (!(list = expand_string_internal(s, TRUE, &s, skipping, TRUE, &resetok)))
+ goto EXPAND_FAILED;
if (*s++ != '}')
{
expand_string_message =
if (item_type == EITEM_REDUCE)
{
uschar * t;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{')
{
expand_string_message = US"missing '{' for second arg of reduce";
}
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{')
{
expand_string_message =
if (item_type == EITEM_FILTER)
{
- temp = eval_condition(expr, &resetok, NULL);
- if (temp != NULL) s = temp;
+ if ((temp = eval_condition(expr, &resetok, NULL)))
+ s = temp;
}
else
temp = expand_string_internal(s, TRUE, &s, TRUE, TRUE, &resetok);
- if (temp == NULL)
+ if (!temp)
{
expand_string_message = string_sprintf("%s inside \"%s\" item",
expand_string_message, name);
goto EXPAND_FAILED;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '}')
{ /*{*/
expand_string_message = string_sprintf("missing } at end of condition "
goto EXPAND_FAILED;
}
- while (isspace(*s)) s++; /*{*/
+ Uskip_whitespace(&s); /*{*/
if (*s++ != '}')
{ /*{*/
expand_string_message = string_sprintf("missing } at end of \"%s\"",
if (item_type == EITEM_FILTER)
{
BOOL condresult;
- if (eval_condition(expr, &resetok, &condresult) == NULL)
+ if (!eval_condition(expr, &resetok, &condresult))
{
iterate_item = save_iterate_item;
lookup_value = save_lookup_value;
{
uschar * t = expand_string_internal(expr, TRUE, NULL, skipping, TRUE, &resetok);
temp = t;
- if (temp == NULL)
+ if (!temp)
{
iterate_item = save_iterate_item;
expand_string_message = string_sprintf("%s inside \"%s\" item",
item of the output list, add in a space if the new item begins with the
separator character, or is an empty string. */
- if (yield->ptr != save_ptr && (temp[0] == *outsep || temp[0] == 0))
+ if ( yield && yield->ptr != save_ptr
+ && (temp[0] == *outsep || temp[0] == 0))
yield = string_catn(yield, US" ", 1);
/* Add the string in "temp" to the output list that we are building,
the redundant final separator. Even though an empty item at the end of a
list does not count, this is tidier. */
- else if (yield->ptr != save_ptr) yield->ptr--;
+ else if (yield && yield->ptr != save_ptr) yield->ptr--;
/* Restore preserved $item */
case EITEM_SORT:
{
+ int cond_type;
int sep = 0;
const uschar *srclist, *cmp, *xtract;
- uschar *srcitem;
+ uschar * opname, * srcitem;
const uschar *dstlist = NULL, *dstkeylist = NULL;
uschar * tmp;
uschar *save_iterate_item = iterate_item;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{')
{
expand_string_message = US"missing '{' for list arg of sort";
goto EXPAND_FAILED_CURLY;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
if (*s++ != '{')
{
expand_string_message = US"missing '{' for comparator arg of sort";
goto EXPAND_FAILED_CURLY;
}
- while (isspace(*s)) s++;
+ if ((cond_type = identify_operator(&cmp, &opname)) == -1)
+ {
+ if (!expand_string_message)
+ expand_string_message = string_sprintf("unknown condition \"%s\"", s);
+ goto EXPAND_FAILED;
+ }
+ switch(cond_type)
+ {
+ case ECOND_NUM_L: case ECOND_NUM_LE:
+ case ECOND_NUM_G: case ECOND_NUM_GE:
+ case ECOND_STR_GE: case ECOND_STR_GEI: case ECOND_STR_GT: case ECOND_STR_GTI:
+ case ECOND_STR_LE: case ECOND_STR_LEI: case ECOND_STR_LT: case ECOND_STR_LTI:
+ break;
+
+ default:
+ expand_string_message = US"comparator not handled for sort";
+ goto EXPAND_FAILED;
+ }
+
+ Uskip_whitespace(&s);
if (*s++ != '{')
{
expand_string_message = US"missing '{' for extractor arg of sort";
}
xtract = s;
- tmp = expand_string_internal(s, TRUE, &s, TRUE, TRUE, &resetok);
- if (!tmp) goto EXPAND_FAILED;
+ if (!(tmp = expand_string_internal(s, TRUE, &s, TRUE, TRUE, &resetok)))
+ goto EXPAND_FAILED;
xtract = string_copyn(xtract, s - xtract);
if (*s++ != '}')
if (skipping) continue;
while ((srcitem = string_nextinlist(&srclist, &sep, NULL, 0)))
- {
- uschar * dstitem;
+ {
+ uschar * srcfield, * dstitem;
gstring * newlist = NULL;
gstring * newkeylist = NULL;
- uschar * srcfield;
DEBUG(D_expand) debug_printf_indent("%s: $item = \"%s\"\n", name, srcitem);
while ((dstitem = string_nextinlist(&dstlist, &sep, NULL, 0)))
{
uschar * dstfield;
- uschar * expr;
- BOOL before;
/* field for comparison */
if (!(dstfield = string_nextinlist(&dstkeylist, &sep, NULL, 0)))
goto sort_mismatch;
- /* build and run condition string */
- expr = string_sprintf("%s{%s}{%s}", cmp, srcfield, dstfield);
-
- DEBUG(D_expand) debug_printf_indent("%s: cond = \"%s\"\n", name, expr);
- if (!eval_condition(expr, &resetok, &before))
- {
- expand_string_message = string_sprintf("comparison in sort: %s",
- expr);
- goto EXPAND_FAILED;
- }
+ /* String-comparator names start with a letter; numeric names do not */
- if (before)
+ if (sortsbefore(cond_type, isalpha(opname[0]),
+ srcfield, dstfield))
{
/* New-item sorts before this dst-item. Append new-item,
then dst-item, then remainder of dst list. */
newlist = string_append_listele(newlist, sep, dstitem);
newkeylist = string_append_listele(newkeylist, sep, dstfield);
+/*XXX why field-at-a-time copy? Why not just dup the rest of the list? */
while ((dstitem = string_nextinlist(&dstlist, &sep, NULL, 0)))
{
if (!(dstfield = string_nextinlist(&dstkeylist, &sep, NULL, 0)))
}
switch(read_subs(argv, EXPAND_DLFUNC_MAX_ARGS + 2, 2, &s, skipping,
- TRUE, US"dlfunc", &resetok))
+ TRUE, name, &resetok))
{
case 1: goto EXPAND_FAILED_CURLY;
case 2:
if (!(t = tree_search(dlobj_anchor, argv[0])))
{
void *handle = dlopen(CS argv[0], RTLD_LAZY);
- if (handle == NULL)
+ if (!handle)
{
expand_string_message = string_sprintf("dlopen \"%s\" failed: %s",
argv[0], dlerror());
log_write(0, LOG_MAIN|LOG_PANIC, "%s", expand_string_message);
goto EXPAND_FAILED;
}
- t = store_get_perm(sizeof(tree_node) + Ustrlen(argv[0]));
+ t = store_get_perm(sizeof(tree_node) + Ustrlen(argv[0]), is_tainted(argv[0]));
Ustrcpy(t->name, argv[0]);
t->data.ptr = handle;
(void)tree_insertnode(&dlobj_anchor, t);
/* Having obtained the dynamically loaded object handle, look up the
function pointer. */
- func = (exim_dlfunc_t *)dlsym(t->data.ptr, CS argv[1]);
- if (func == NULL)
+ if (!(func = (exim_dlfunc_t *)dlsym(t->data.ptr, CS argv[1])))
{
expand_string_message = string_sprintf("dlsym \"%s\" in \"%s\" failed: "
"%s", argv[1], argv[0], dlerror());
resetok = FALSE;
result = NULL;
- for (argc = 0; argv[argc] != NULL; argc++);
+ for (argc = 0; argv[argc]; argc++);
status = func(&result, argc - 2, &argv[2]);
if(status == OK)
{
- if (result == NULL) result = US"";
+ if (!result) result = US"";
yield = string_cat(yield, result);
continue;
}
else
{
- expand_string_message = result == NULL ? US"(no message)" : result;
- if(status == FAIL_FORCED) f.expand_string_forcedfail = TRUE;
- else if(status != FAIL)
- log_write(0, LOG_MAIN|LOG_PANIC, "dlfunc{%s}{%s} failed (%d): %s",
+ expand_string_message = result ? result : US"(no message)";
+ if (status == FAIL_FORCED)
+ f.expand_string_forcedfail = TRUE;
+ else if (status != FAIL)
+ log_write(0, LOG_MAIN|LOG_PANIC, "dlfunc{%s}{%s} failed (%d): %s",
argv[0], argv[1], status, expand_string_message);
goto EXPAND_FAILED;
}
uschar * key;
uschar *save_lookup_value = lookup_value;
- while (isspace(*s)) s++;
- if (*s != '{') /*}*/
+ if (Uskip_whitespace(&s) != '{') /*}*/
goto EXPAND_FAILED;
key = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok);
}
continue;
}
+
+#ifdef EXPERIMENTAL_SRS_NATIVE
+ case EITEM_SRS_ENCODE:
+ /* ${srs_encode {secret} {return_path} {orig_domain}} */
+ {
+ uschar * sub[3];
+ uschar cksum[4];
+
+ switch (read_subs(sub, 3, 3, CUSS &s, skipping, TRUE, name, &resetok))
+ {
+ case 1: goto EXPAND_FAILED_CURLY;
+ case 2:
+ case 3: goto EXPAND_FAILED;
+ }
+
+ yield = string_catn(yield, US"SRS0=", 5);
+
+ /* ${l_4:${hmac{md5}{SRS_SECRET}{${lc:$return_path}}}}= */
+ hmac_md5(sub[0], string_copylc(sub[1]), cksum, sizeof(cksum));
+ yield = string_catn(yield, cksum, sizeof(cksum));
+ yield = string_catn(yield, US"=", 1);
+
+ /* ${base32:${eval:$tod_epoch/86400&0x3ff}}= */
+ {
+ struct timeval now;
+ unsigned long i;
+ gstring * g = NULL;
+
+ gettimeofday(&now, NULL);
+ for (unsigned long i = (now.tv_sec / 86400) & 0x3ff; i; i >>= 5)
+ g = string_catn(g, &base32_chars[i & 0x1f], 1);
+ if (g) while (g->ptr > 0)
+ yield = string_catn(yield, &g->s[--g->ptr], 1);
+ }
+ yield = string_catn(yield, US"=", 1);
+
+ /* ${domain:$return_path}=${local_part:$return_path} */
+ {
+ int start, end, domain;
+ uschar * t = parse_extract_address(sub[1], &expand_string_message,
+ &start, &end, &domain, FALSE);
+ if (!t)
+ goto EXPAND_FAILED;
+
+ if (domain > 0) yield = string_cat(yield, t + domain);
+ yield = string_catn(yield, US"=", 1);
+ yield = domain > 0
+ ? string_catn(yield, t, domain - 1) : string_cat(yield, t);
+ }
+
+ /* @$original_domain */
+ yield = string_catn(yield, US"@", 1);
+ yield = string_cat(yield, sub[2]);
+ continue;
+ }
+#endif /*EXPERIMENTAL_SRS_NATIVE*/
} /* EITEM_* switch */
/* Control reaches here if the name is not recognized as one of the more
int c;
uschar *arg = NULL;
uschar *sub;
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
var_entry *vp = NULL;
#endif
if ((c = chop_match(name, op_table_underscore,
nelem(op_table_underscore))) < 0)
{
- arg = Ustrchr(name, '_');
- if (arg != NULL) *arg = 0;
- c = chop_match(name, op_table_main, nelem(op_table_main));
- if (c >= 0) c += nelem(op_table_underscore);
- if (arg != NULL) *arg++ = '_'; /* Put back for error messages */
+ if ((arg = Ustrchr(name, '_')))
+ *arg = 0;
+ if ((c = chop_match(name, op_table_main, nelem(op_table_main))) >= 0)
+ c += nelem(op_table_underscore);
+ if (arg) *arg++ = '_'; /* Put back for error messages */
}
/* Deal specially with operators that might take a certificate variable
as we do not want to do the usual expansion. For most, expand the string.*/
switch(c)
{
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
case EOP_MD5:
case EOP_SHA1:
case EOP_SHA256:
{
uschar *tt = sub;
unsigned long int n = 0;
- uschar * s;
while (*tt)
{
uschar * t = Ustrchr(base32_chars, *tt++);
- if (t == NULL)
+ if (!t)
{
expand_string_message = string_sprintf("argument for base32d "
"operator is \"%s\", which is not a base 32 number", sub);
}
n = n * 32 + (t - base32_chars);
}
- s = string_sprintf("%ld", n);
- yield = string_cat(yield, s);
+ yield = string_fmt_append(yield, "%ld", n);
continue;
}
"operator is \"%s\", which is not a decimal number", sub);
goto EXPAND_FAILED;
}
- t = string_base62(n);
- yield = string_cat(yield, t);
+ yield = string_cat(yield, string_base62(n));
continue;
}
while (*tt != 0)
{
uschar *t = Ustrchr(base62_chars, *tt++);
- if (t == NULL)
+ if (!t)
{
expand_string_message = string_sprintf("argument for base62d "
"operator is \"%s\", which is not a base %d number", sub,
continue;
}
+ case EOP_BLESS:
+ /* This is purely for the convenience of the test harness. Do not enable
+ it otherwise as it defeats the taint-checking security. */
+
+ if (f.running_in_test_harness)
+ yield = string_cat(yield, is_tainted(sub)
+ ? string_copy_taint(sub, FALSE) : sub);
+ else
+ {
+ DEBUG(D_expand) debug_printf_indent("bless operator not supported\n");
+ yield = string_cat(yield, sub);
+ }
+ continue;
+
case EOP_EXPAND:
{
uschar *expanded = expand_string_internal(sub, FALSE, NULL, skipping, TRUE, &resetok);
- if (expanded == NULL)
+ if (!expanded)
{
expand_string_message =
string_sprintf("internal expansion of \"%s\" failed: %s", sub,
}
case EOP_MD5:
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
if (vp && *(void **)vp->value)
{
uschar * cp = tls_cert_fprt_md5(*(void **)vp->value);
continue;
case EOP_SHA1:
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
if (vp && *(void **)vp->value)
{
uschar * cp = tls_cert_fprt_sha1(*(void **)vp->value);
}
continue;
+ case EOP_SHA2:
case EOP_SHA256:
#ifdef EXIM_HAVE_SHA2
if (vp && *(void **)vp->value)
- {
- uschar * cp = tls_cert_fprt_sha256(*(void **)vp->value);
- yield = string_cat(yield, cp);
- }
+ if (c == EOP_SHA256)
+ yield = string_cat(yield, tls_cert_fprt_sha256(*(void **)vp->value));
+ else
+ expand_string_message = US"sha2_N not supported with certificates";
else
{
hctx h;
blob b;
+ hashmethod m = !arg ? HASH_SHA2_256
+ : Ustrcmp(arg, "256") == 0 ? HASH_SHA2_256
+ : Ustrcmp(arg, "384") == 0 ? HASH_SHA2_384
+ : Ustrcmp(arg, "512") == 0 ? HASH_SHA2_512
+ : HASH_BADTYPE;
- if (!exim_sha_init(&h, HASH_SHA2_256))
+ if (m == HASH_BADTYPE || !exim_sha_init(&h, m))
{
- expand_string_message = US"unrecognised sha256 variant";
+ expand_string_message = US"unrecognised sha2 variant";
goto EXPAND_FAILED;
}
+
exim_sha_update(&h, sub, Ustrlen(sub));
exim_sha_finish(&h, &b);
while (b.len-- > 0)
{
int cnt = 0;
int sep = 0;
- uschar buffer[256];
- while (string_nextinlist(CUSS &sub, &sep, buffer, sizeof(buffer)) != NULL) cnt++;
+ while (string_nextinlist(CUSS &sub, &sep, NULL, 0)) cnt++;
yield = string_fmt_append(yield, "%d", cnt);
continue;
}
uschar buffer[256];
if (*sub == '+') sub++;
- if (arg == NULL) /* no-argument version */
+ if (!arg) /* no-argument version */
{
if (!(t = tree_search(addresslist_anchor, sub)) &&
!(t = tree_search(domainlist_anchor, sub)) &&
case 'h': t = tree_search(hostlist_anchor, sub); suffix = US"_h"; break;
case 'l': t = tree_search(localpartlist_anchor, sub); suffix = US"_l"; break;
default:
- expand_string_message = string_sprintf("bad suffix on \"list\" operator");
+ expand_string_message = US"bad suffix on \"list\" operator";
goto EXPAND_FAILED;
}
continue;
}
+ /* quote a list-item for the given list-separator */
+
/* mask applies a mask to an IP address; for example the result of
${mask:131.111.10.206/28} is 131.111.10.192/28. */
uschar * t = parse_extract_address(sub, &error, &start, &end, &domain,
FALSE);
if (t)
- if (c != EOP_DOMAIN)
- {
- if (c == EOP_LOCAL_PART && domain != 0) end = start + domain - 1;
- yield = string_catn(yield, sub+start, end-start);
- }
- else if (domain != 0)
- {
- domain += start;
- yield = string_catn(yield, sub+domain, end-domain);
- }
+ if (c != EOP_DOMAIN)
+ yield = c == EOP_LOCAL_PART && domain > 0
+ ? string_catn(yield, t, domain - 1)
+ : string_cat(yield, t);
+ else if (domain > 0)
+ yield = string_cat(yield, t + domain);
continue;
}
{
uschar outsep[2] = { ':', '\0' };
uschar *address, *error;
- int save_ptr = yield->ptr;
+ int save_ptr = gstring_length(yield);
int start, end, domain; /* Not really used */
- while (isspace(*sub)) sub++;
- if (*sub == '>')
+ if (Uskip_whitespace(&sub) == '>')
if (*outsep = *++sub) ++sub;
else
{
for (;;)
{
- uschar *p = parse_find_address_end(sub, FALSE);
+ uschar * p = parse_find_address_end(sub, FALSE);
uschar saveend = *p;
*p = '\0';
address = parse_extract_address(sub, &error, &start, &end, &domain,
list, add in a space if the new address begins with the separator
character, or is an empty string. */
- if (address != NULL)
+ if (address)
{
- if (yield->ptr != save_ptr && address[0] == *outsep)
+ if (yield && yield->ptr != save_ptr && address[0] == *outsep)
yield = string_catn(yield, US" ", 1);
for (;;)
/* If we have generated anything, remove the redundant final
separator. */
- if (yield->ptr != save_ptr) yield->ptr--;
+ if (yield && yield->ptr != save_ptr) yield->ptr--;
f.parse_allow_group = FALSE;
continue;
}
case EOP_QUOTE:
case EOP_QUOTE_LOCAL_PART:
- if (arg == NULL)
+ if (!arg)
{
- BOOL needs_quote = (*sub == 0); /* TRUE for empty string */
+ BOOL needs_quote = (!*sub); /* TRUE for empty string */
uschar *t = sub - 1;
if (c == EOP_QUOTE)
int n;
uschar *opt = Ustrchr(arg, '_');
- if (opt != NULL) *opt++ = 0;
+ if (opt) *opt++ = 0;
- n = search_findtype(arg, Ustrlen(arg));
- if (n < 0)
+ if ((n = search_findtype(arg, Ustrlen(arg))) < 0)
{
expand_string_message = search_error_message;
goto EXPAND_FAILED;
}
- if (lookup_list[n]->quote != NULL)
+ if (lookup_list[n]->quote)
sub = (lookup_list[n]->quote)(sub, opt);
- else if (opt != NULL) sub = NULL;
+ else if (opt)
+ sub = NULL;
- if (sub == NULL)
+ if (!sub)
{
expand_string_message = string_sprintf(
"\"%s\" unrecognized after \"${quote_%s\"",
prescribed by the RFC, if there are characters that need to be encoded */
case EOP_RFC2047:
- {
- uschar buffer[2048];
yield = string_cat(yield,
parse_quote_2047(sub, Ustrlen(sub), headers_charset,
- buffer, sizeof(buffer), FALSE));
+ FALSE));
continue;
- }
/* RFC 2047 decode */
uschar *error;
uschar *decoded = rfc2047_decode(sub, check_rfc2047_length,
headers_charset, '?', &len, &error);
- if (error != NULL)
+ if (error)
{
expand_string_message = error;
goto EXPAND_FAILED;
case EOP_FROM_UTF8:
{
- while (*sub != 0)
+ uschar * buff = store_get(4, is_tainted(sub));
+ while (*sub)
{
int c;
- uschar buff[4];
GETUTF8INC(c, sub);
if (c > 255) c = '_';
buff[0] = c;
continue;
}
- /* replace illegal UTF-8 sequences by replacement character */
+ /* replace illegal UTF-8 sequences by replacement character */
#define UTF8_REPLACEMENT_CHAR US"?"
int complete;
uschar seq_buff[4]; /* accumulate utf-8 here */
- while (*sub != 0)
+ /* Manually track tainting, as we deal in individual chars below */
+
+ if (is_tainted(sub))
+ if (yield->s && yield->ptr)
+ gstring_rebuffer(yield);
+ else
+ yield->s = store_get(yield->size = Ustrlen(sub), TRUE);
+
+ /* Check the UTF-8, byte-by-byte */
+
+ while (*sub)
{
complete = 0;
uschar c = *sub++;
}
else /* no bytes left: new sequence */
{
- if((c & 0x80) == 0) /* 1-byte sequence, US-ASCII, keep it */
+ if(!(c & 0x80)) /* 1-byte sequence, US-ASCII, keep it */
{
yield = string_catn(yield, &c, 1);
continue;
* Eg, ${length_1:フィル} is one byte, not one character, so we expect
* ${utf8clean:${length_1:フィル}} to yield '?' */
if (bytes_left != 0)
- {
yield = string_catn(yield, UTF8_REPLACEMENT_CHAR, 1);
- }
+
continue;
}
case EOP_STR2B64:
case EOP_BASE64:
{
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
uschar * s = vp && *(void **)vp->value
? tls_cert_der_b64(*(void **)vp->value)
: b64encode(CUS sub, Ustrlen(sub));
/* Perform the required operation */
- ret =
- (c == EOP_HASH || c == EOP_H)?
- compute_hash(sub, value1, value2, &len) :
- (c == EOP_NHASH || c == EOP_NH)?
- compute_nhash(sub, value1, value2, &len) :
- extract_substr(sub, value1, value2, &len);
+ ret = c == EOP_HASH || c == EOP_H
+ ? compute_hash(sub, value1, value2, &len)
+ : c == EOP_NHASH || c == EOP_NH
+ ? compute_nhash(sub, value1, value2, &len)
+ : extract_substr(sub, value1, value2, &len);
+ if (!ret) goto EXPAND_FAILED;
- if (ret == NULL) goto EXPAND_FAILED;
yield = string_catn(yield, ret, len);
continue;
}
gstring * g = NULL;
if (!yield)
- g = store_get(sizeof(gstring));
+ g = store_get(sizeof(gstring), FALSE);
else if (yield->ptr == 0)
{
- if (resetok) store_reset(yield);
+ if (resetok) reset_point = store_reset(reset_point);
yield = NULL;
- g = store_get(sizeof(gstring)); /* alloc _before_ calling find_variable() */
+ reset_point = store_mark();
+ g = store_get(sizeof(gstring), FALSE); /* alloc _before_ calling find_variable() */
}
if (!(value = find_variable(name, FALSE, skipping, &newsize)))
{
In many cases the final string will be the first one that was got and so there
will be optimal store usage. */
-if (resetok) store_reset(yield->s + (yield->size = yield->ptr + 1));
+if (resetok) gstring_release_unused(yield);
else if (resetok_p) *resetok_p = FALSE;
DEBUG(D_expand)
+ {
+ BOOL tainted = is_tainted(yield->s);
DEBUG(D_noutf8)
{
debug_printf_indent("|--expanding: %.*s\n", (int)(s - string), string);
debug_printf_indent("%sresult: %s\n",
skipping ? "|-----" : "\\_____", yield->s);
+ if (tainted)
+ debug_printf_indent("%s \\__(tainted)\n",
+ skipping ? "| " : " ");
if (skipping)
debug_printf_indent("\\___skipping: result is not used\n");
}
debug_printf_indent(UTF8_VERT_RIGHT UTF8_HORIZ UTF8_HORIZ
"expanding: %.*s\n",
(int)(s - string), string);
- debug_printf_indent("%s"
- UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ
+ debug_printf_indent("%s" UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ
"result: %s\n",
skipping ? UTF8_VERT_RIGHT : UTF8_UP_RIGHT,
yield->s);
+ if (tainted)
+ debug_printf_indent("%s(tainted)\n",
+ skipping
+ ? UTF8_VERT " " : " " UTF8_UP_RIGHT UTF8_HORIZ UTF8_HORIZ);
if (skipping)
debug_printf_indent(UTF8_UP_RIGHT UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ
"skipping: result is not used\n");
}
+ }
expand_level--;
return yield->s;
/* If expansion failed, expand_string_message will be set. */
-if (s == NULL) return -1;
+if (!s) return -1;
/* On an overflow, strtol() returns LONG_MAX or LONG_MIN, and sets errno
to ERANGE. When there isn't an overflow, errno is not changed, at least on some
noop change since strtol skips it anyway (provided that there is a number
to find at all). */
if (isspace(*s))
- {
- while (isspace(*s)) ++s;
- if (*s == '\0')
+ if (Uskip_whitespace(&s) == '\0')
{
DEBUG(D_expand)
debug_printf_indent("treating blank string as number 0\n");
return 0;
}
- }
value = strtoll(CS s, CSS &endptr, 10);
if (endptr == s)
- {
msg = US"integer expected but \"%s\" found";
- }
else if (value < 0 && isplus)
- {
msg = US"non-negative integer expected but \"%s\" found";
- }
else
{
switch (tolower(*endptr))
if (errno == ERANGE)
msg = US"absolute value of integer \"%s\" is too large (overflow)";
else
- {
- while (isspace(*endptr)) endptr++;
- if (*endptr == 0) return value;
- }
+ if (Uskip_whitespace(&endptr) == 0) return value;
}
expand_string_message = string_sprintf(CS msg, s);
uschar *svalue, BOOL *rvalue)
{
uschar *expanded;
-if (svalue == NULL) { *rvalue = bvalue; return OK; }
+if (!svalue) { *rvalue = bvalue; return OK; }
-expanded = expand_string(svalue);
-if (expanded == NULL)
+if (!(expanded = expand_string(svalue)))
{
if (f.expand_string_forcedfail)
{
{
int fd, off = 0, len;
-if ((fd = open(CS filename, O_RDONLY)) < 0)
+if ((fd = exim_open2(CS filename, O_RDONLY)) < 0)
{
log_write(0, LOG_MAIN | LOG_PANIC, "unable to open file for reading: %s",
filename);
}
#endif /* EXIM_PERL */
+/* Thie deliberately regards the input as untainted, so that it can be
+expanded; only reasonable since this is a test for string-expansions. */
+
while (fgets(buffer, sizeof(buffer), stdin) != NULL)
{
- void *reset_point = store_get(0);
+ rmark reset_point = store_mark();
uschar *yield = expand_string(buffer);
- if (yield != NULL)
- {
+ if (yield)
printf("%s\n", yield);
- store_reset(reset_point);
- }
else
{
if (f.search_find_defer) printf("search_find deferred\n");
if (f.expand_string_forcedfail) printf("Forced failure\n");
printf("\n");
}
+ store_reset(reset_point);
}
search_tidyup();
git://git.exim.org / exim.git / blobdiff