* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2016 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
/* See the file NOTICE for conditions of use and distribution. */
static int_eximarith_t expanded_string_integer(const uschar *, BOOL);
#ifdef STAND_ALONE
-#ifndef SUPPORT_CRYPTEQ
-#define SUPPORT_CRYPTEQ
-#endif
+# ifndef SUPPORT_CRYPTEQ
+# define SUPPORT_CRYPTEQ
+# endif
#endif
#ifdef LOOKUP_LDAP
-#include "lookups/ldap.h"
+# include "lookups/ldap.h"
#endif
#ifdef SUPPORT_CRYPTEQ
-#ifdef CRYPT_H
-#include <crypt.h>
-#endif
-#ifndef HAVE_CRYPT16
+# ifdef CRYPT_H
+# include <crypt.h>
+# endif
+# ifndef HAVE_CRYPT16
extern char* crypt16(char*, char*);
-#endif
+# endif
#endif
/* The handling of crypt16() is a mess. I will record below the analysis of the
(standard crypt does 25 rounds). It then crypts the next 8 characters,
or an empty block if the password is less than 9 characters, using a
20-round version of crypt and the same salt as was used for the first
-block. Charaters after the first 16 are ignored. It always generates
+block. Characters after the first 16 are ignored. It always generates
a 16-byte hash, which is expressed together with the salt as a string
of 24 base 64 digits. Here are some links to peruse:
static uschar *item_table[] = {
US"acl",
+ US"authresults",
US"certextract",
US"dlfunc",
US"env",
enum {
EITEM_ACL,
+ EITEM_AUTHRESULTS,
EITEM_CERTEXTRACT,
EITEM_DLFUNC,
EITEM_ENV,
{ "address_data", vtype_stringptr, &deliver_address_data },
{ "address_file", vtype_stringptr, &address_file },
{ "address_pipe", vtype_stringptr, &address_pipe },
+#ifdef EXPERIMENTAL_ARC
+ { "arc_domains", vtype_string_func, &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 },
+#endif
{ "authenticated_fail_id",vtype_stringptr, &authenticated_fail_id },
{ "authenticated_id", vtype_stringptr, &authenticated_id },
{ "authenticated_sender",vtype_stringptr, &authenticated_sender },
{ "dkim_key_testing", vtype_dkim, (void *)DKIM_KEY_TESTING },
{ "dkim_selector", vtype_stringptr, &dkim_signing_selector },
{ "dkim_signers", vtype_stringptr, &dkim_signers },
- { "dkim_verify_reason", vtype_dkim, (void *)DKIM_VERIFY_REASON },
- { "dkim_verify_status", vtype_dkim, (void *)DKIM_VERIFY_STATUS},
+ { "dkim_verify_reason", vtype_stringptr, &dkim_verify_reason },
+ { "dkim_verify_status", vtype_stringptr, &dkim_verify_status },
#endif
#ifdef EXPERIMENTAL_DMARC
- { "dmarc_ar_header", vtype_stringptr, &dmarc_ar_header },
{ "dmarc_domain_policy", vtype_stringptr, &dmarc_domain_policy },
{ "dmarc_status", vtype_stringptr, &dmarc_status },
{ "dmarc_status_text", vtype_stringptr, &dmarc_status_text },
{ "local_part_data", vtype_stringptr, &deliver_localpart_data },
{ "local_part_prefix", vtype_stringptr, &deliver_localpart_prefix },
{ "local_part_suffix", vtype_stringptr, &deliver_localpart_suffix },
+#ifdef HAVE_LOCAL_SCAN
{ "local_scan_data", vtype_stringptr, &local_scan_data },
+#endif
{ "local_user_gid", vtype_gid, &local_user_gid },
{ "local_user_uid", vtype_uid, &local_user_uid },
{ "localhost_number", vtype_int, &host_number },
{ "received_ip_address", vtype_stringptr, &interface_address },
{ "received_port", vtype_int, &interface_port },
{ "received_protocol", vtype_stringptr, &received_protocol },
- { "received_time", vtype_int, &received_time },
+ { "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 },
{ "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_count_at_connection_start", vtype_int, &smtp_accept_count },
{ "smtp_notquit_reason", vtype_stringptr, &smtp_notquit_reason },
{ "sn0", vtype_filter_int, &filter_sn[0] },
{ "spam_score", vtype_stringptr, &spam_score },
{ "spam_score_int", vtype_stringptr, &spam_score_int },
#endif
-#ifdef EXPERIMENTAL_SPF
+#ifdef SUPPORT_SPF
{ "spf_guess", vtype_stringptr, &spf_guess },
{ "spf_header_comment", vtype_stringptr, &spf_header_comment },
{ "spf_received", vtype_stringptr, &spf_received },
{ "spf_result", vtype_stringptr, &spf_result },
+ { "spf_result_guessed", vtype_bool, &spf_result_guessed },
{ "spf_smtp_comment", vtype_stringptr, &spf_smtp_comment },
#endif
{ "spool_directory", vtype_stringptr, &spool_directory },
{ "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 },
-#ifdef EXPERIMENTAL_DANE
+#ifdef SUPPORT_DANE
{ "tls_out_dane", vtype_bool, &tls_out.dane_verified },
#endif
{ "tls_out_ocsp", vtype_int, &tls_out.ocsp },
#if defined(SUPPORT_TLS)
{ "tls_out_sni", vtype_stringptr, &tls_out.sni },
#endif
-#ifdef EXPERIMENTAL_DANE
+#ifdef SUPPORT_DANE
{ "tls_out_tlsa_usage", vtype_int, &tls_out.tlsa_usage },
#endif
static uschar *mtable_sticky[] =
{ US"--T", US"--t", US"-wT", US"-wt", US"r-T", US"r-t", US"rwT", US"rwt" };
+/* flags for find_header() */
+#define FH_EXISTS_ONLY BIT(0)
+#define FH_WANT_RAW BIT(1)
+#define FH_WANT_LIST BIT(2)
/*************************************************
uschar *ss = expand_string(condition);
if (ss == NULL)
{
- if (!expand_string_forcedfail && !search_find_defer)
+ 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;
*/
static uschar *
-expand_getkeyed(uschar *key, const uschar *s)
+expand_getkeyed(uschar * key, const uschar * s)
{
int length = Ustrlen(key);
while (isspace(*s)) s++;
/* Loop to search for the key */
-while (*s != 0)
+while (*s)
{
int dkeylength;
- uschar *data;
- const uschar *dkey = s;
+ uschar * data;
+ const uschar * dkey = s;
- while (*s != 0 && *s != '=' && !isspace(*s)) s++;
+ while (*s && *s != '=' && !isspace(*s)) s++;
dkeylength = s - dkey;
while (isspace(*s)) s++;
if (*s == '=') while (isspace((*(++s))));
static uschar *
expand_getlistele(int field, const uschar * list)
{
-const uschar * tlist= list;
-int sep= 0;
+const uschar * tlist = list;
+int sep = 0;
uschar dummy;
-if(field<0)
+if (field < 0)
{
- for(field++; string_nextinlist(&tlist, &sep, &dummy, 1); ) field++;
- sep= 0;
+ 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))) ;
+if (field == 0) return NULL;
+while (--field > 0 && (string_nextinlist(&list, &sep, &dummy, 1))) ;
return string_nextinlist(&list, &sep, NULL, 0);
}
/* If value2 is unset, just compute one number */
if (value2 < 0)
- {
- s = string_sprintf("%d", total % value1);
- }
+ s = string_sprintf("%lu", total % value1);
/* Otherwise do a div/mod hash */
else
{
total = total % (value1 * value2);
- s = string_sprintf("%d/%d", total/value2, total % value2);
+ s = string_sprintf("%lu/%lu", total/value2, total % value2);
}
*len = Ustrlen(s);
specific headers that contain lists of addresses, a comma is inserted between
them. Otherwise we use a straight concatenation. Because some messages can have
pathologically large number of lines, there is a limit on the length that is
-returned. Also, to avoid massive store use which would result from using
-string_cat() as it copies and extends strings, we do a preliminary pass to find
-out exactly how much store will be needed. On "normal" messages this will be
-pretty trivial.
+returned.
Arguments:
name the name of the header, without the leading $header_ or $h_,
or NULL if a concatenation of all headers is required
- exists_only TRUE if called from a def: test; don't need to build a string;
- just return a string that is not "" and not "0" if the header
- exists
newsize return the size of memory block that was obtained; may be NULL
if exists_only is TRUE
- want_raw TRUE if called for $rh_ or $rheader_ variables; no processing,
- other than concatenating, will be done on the header. Also used
- for $message_headers_raw.
+ flags FH_EXISTS_ONLY
+ set if called from a def: test; don't need to build a string;
+ just return a string that is not "" and not "0" if the header
+ exists
+ FH_WANT_RAW
+ set if called for $rh_ or $rheader_ items; no processing,
+ other than concatenating, will be done on the header. Also used
+ for $message_headers_raw.
+ FH_WANT_LIST
+ Double colon chars in the content, and replace newline with
+ colon between each element when concatenating; returning a
+ colon-sep list (elements might contain newlines)
charset name of charset to translate MIME words to; used only if
want_raw is false; if NULL, no translation is done (this is
used for $bh_ and $bheader_)
*/
static uschar *
-find_header(uschar *name, BOOL exists_only, int *newsize, BOOL want_raw,
- uschar *charset)
+find_header(uschar *name, int *newsize, unsigned flags, uschar *charset)
{
-BOOL found = name == NULL;
-int comma = 0;
-int len = found? 0 : Ustrlen(name);
-int i;
-uschar *yield = NULL;
-uschar *ptr = NULL;
-
-/* Loop for two passes - saves code repetition */
-
-for (i = 0; i < 2; i++)
- {
- int size = 0;
- header_line *h;
-
- for (h = header_list; size < header_insert_maxlen && h != NULL; h = h->next)
- {
- if (h->type != htype_old && h->text != NULL) /* NULL => Received: placeholder */
+BOOL found = !name;
+int len = name ? Ustrlen(name) : 0;
+BOOL comma = FALSE;
+header_line * h;
+gstring * g = NULL;
+
+for (h = header_list; h; h = h->next)
+ if (h->type != htype_old && h->text) /* NULL => Received: placeholder */
+ if (!name || (len <= h->slen && strncmpic(name, h->text, len) == 0))
{
- if (name == NULL || (len <= h->slen && strncmpic(name, h->text, len) == 0))
- {
- int ilen;
- uschar *t;
-
- if (exists_only) return US"1"; /* don't need actual string */
- found = TRUE;
- t = h->text + len; /* text to insert */
- if (!want_raw) /* unless wanted raw, */
- while (isspace(*t)) t++; /* remove leading white space */
- ilen = h->slen - (t - h->text); /* length to insert */
+ uschar * s, * t;
+ size_t inc;
- /* Unless wanted raw, remove trailing whitespace, including the
- newline. */
+ if (flags & FH_EXISTS_ONLY)
+ return US"1"; /* don't need actual string */
- if (!want_raw)
- while (ilen > 0 && isspace(t[ilen-1])) ilen--;
+ 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 */
+ t = h->text + h->slen; /* end-point */
- /* Set comma = 1 if handling a single header and it's one of those
- that contains an address list, except when asked for raw headers. Only
- need to do this once. */
+ /* Unless wanted raw, remove trailing whitespace, including the
+ newline. */
- if (!want_raw && name != NULL && comma == 0 &&
- Ustrchr("BCFRST", h->type) != NULL)
- comma = 1;
-
- /* First pass - compute total store needed; second pass - compute
- total store used, including this header. */
-
- size += ilen + comma + 1; /* +1 for the newline */
+ if (flags & FH_WANT_LIST)
+ while (t > s && t[-1] == '\n') t--;
+ else if (!(flags & FH_WANT_RAW))
+ {
+ while (t > s && isspace(t[-1])) t--;
- /* Second pass - concatentate the data, up to a maximum. Note that
- the loop stops when size hits the limit. */
+ /* Set comma if handling a single header and it's one of those
+ that contains an address list, except when asked for raw headers. Only
+ need to do this once. */
- if (i != 0)
- {
- if (size > header_insert_maxlen)
- {
- ilen -= size - header_insert_maxlen - 1;
- comma = 0;
- }
- Ustrncpy(ptr, t, ilen);
- ptr += ilen;
+ if (name && !comma && Ustrchr("BCFRST", h->type)) comma = TRUE;
+ }
- /* For a non-raw header, put in the comma if needed, then add
- back the newline we removed above, provided there was some text in
- the header. */
+ /* 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);
+
+ /* 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
+ list-elemment; for other nonraw add as an unchecked newline-sep list (we
+ stripped trailing WS above including the newline). We ignore the potential
+ expansion due to colon-doubling, just leaving the loop if the limit is met
+ or exceeded. */
+
+ 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);
- if (!want_raw && ilen > 0)
- {
- if (comma != 0) *ptr++ = ',';
- *ptr++ = '\n';
- }
- }
- }
+ if (g && g->ptr >= header_insert_maxlen) break;
}
- }
-
- /* At end of first pass, return NULL if no header found. Then truncate size
- if necessary, and get the buffer to hold the data, returning the buffer size.
- */
- if (i == 0)
- {
- if (!found) return NULL;
- if (size > header_insert_maxlen) size = header_insert_maxlen;
- *newsize = size + 1;
- ptr = yield = store_get(*newsize);
- }
- }
+if (!found) return NULL; /* No header found */
+if (!g) return US"";
/* That's all we do for raw header expansion. */
-if (want_raw)
- {
- *ptr = 0;
- }
+*newsize = g->size;
+if (flags & FH_WANT_RAW)
+ return g->s;
-/* Otherwise, remove a final newline and a redundant added comma. Then we do
-RFC 2047 decoding, translating the charset if requested. The rfc2047_decode2()
-function can return an error with decoded data if the charset translation
-fails. If decoding fails, it returns NULL. */
+/* Otherwise do RFC 2047 decoding, translating the charset if requested.
+The rfc2047_decode2() function can return an error with decoded data if the
+charset translation fails. If decoding fails, it returns NULL. */
else
{
uschar *decoded, *error;
- if (ptr > yield && ptr[-1] == '\n') ptr--;
- if (ptr > yield && comma != 0 && ptr[-1] == ',') ptr--;
- *ptr = 0;
- decoded = rfc2047_decode2(yield, check_rfc2047_length, charset, '?', NULL,
+
+ decoded = rfc2047_decode2(g->s, check_rfc2047_length, charset, '?', NULL,
newsize, &error);
- if (error != NULL)
+ if (error)
{
DEBUG(D_any) debug_printf("*** error in RFC 2047 decoding: %s\n"
- " input was: %s\n", error, yield);
+ " input was: %s\n", error, g->s);
}
- if (decoded != NULL) yield = decoded;
+ return decoded ? decoded : g->s;
}
+}
-return yield;
+
+
+
+/* Append a "local" element to an Authentication-Results: header
+if this was a non-smtp message.
+*/
+
+static gstring *
+authres_local(gstring * g, const uschar * sysname)
+{
+if (!f.authentication_local)
+ return g;
+g = string_append(g, 3, US";\n\tlocal=pass (non-smtp, ", sysname, US")");
+if (authenticated_id) g = string_append(g, 2, " u=", authenticated_id);
+return g;
}
+/* Append an "iprev" element to an Authentication-Results: header
+if we have attempted to get the calling host's name.
+*/
+
+static gstring *
+authres_iprev(gstring * g)
+{
+if (sender_host_name)
+ g = string_append(g, 3, US";\n\tiprev=pass (", sender_host_name, US")");
+else if (host_lookup_deferred)
+ g = string_catn(g, US";\n\tiprev=temperror", 19);
+else if (host_lookup_failed)
+ g = string_catn(g, US";\n\tiprev=fail", 13);
+else
+ return g;
+
+if (sender_host_address)
+ g = string_append(g, 2, US" smtp.remote-ip=", sender_host_address);
+return g;
+}
+
/*************************************************
static uschar *
fn_recipients(void)
{
-if (!enable_dollar_recipients) return NULL; else
+uschar * s;
+gstring * g = NULL;
+int i;
+
+if (!f.enable_dollar_recipients) return NULL;
+
+for (i = 0; i < recipients_count; i++)
{
- int size = 128;
- int ptr = 0;
- int i;
- uschar * s = store_get(size);
- for (i = 0; i < recipients_count; i++)
- {
- if (i != 0) s = string_catn(s, &size, &ptr, US", ", 2);
- s = string_cat(s, &size, &ptr, recipients_list[i].address);
- }
- s[ptr] = 0; /* string_cat() leaves room */
- return s;
+ s = recipients_list[i].address;
+ g = string_append2_listele_n(g, US", ", s, Ustrlen(s));
}
+return g ? g->s : NULL;
}
switch (vp->type)
{
case vtype_filter_int:
- if (!filter_running) return NULL;
+ if (!f.filter_running) return NULL;
/* Fall through */
/* VVVVVVVVVVVV */
case vtype_int:
return var_buffer;
case vtype_host_lookup: /* Lookup if not done so */
- if (sender_host_name == NULL && sender_host_address != NULL &&
- !host_lookup_failed && host_name_lookup() == OK)
+ if ( !sender_host_name && sender_host_address
+ && !host_lookup_failed && host_name_lookup() == OK)
host_build_sender_fullhost();
- return (sender_host_name == NULL)? US"" : sender_host_name;
+ return sender_host_name ? sender_host_name : US"";
case vtype_localpart: /* Get local part from address */
s = *((uschar **)(val));
return (domain == NULL)? US"" : domain + 1;
case vtype_msgheaders:
- return find_header(NULL, exists_only, newsize, FALSE, NULL);
+ return find_header(NULL, newsize, exists_only ? FH_EXISTS_ONLY : 0, NULL);
case vtype_msgheaders_raw:
- return find_header(NULL, exists_only, newsize, TRUE, NULL);
+ return find_header(NULL, newsize,
+ exists_only ? FH_EXISTS_ONLY|FH_WANT_RAW : FH_WANT_RAW, NULL);
case vtype_msgbody: /* Pointer to msgbody string */
case vtype_msgbody_end: /* Ditto, the end of the msg */
ss = (uschar **)(val);
- if (*ss == NULL && deliver_datafile >= 0) /* Read body when needed */
+ if (!*ss && deliver_datafile >= 0) /* Read body when needed */
{
uschar *body;
off_t start_offset = SPOOL_DATA_START_OFFSET;
{ if (body[--len] == '\n' || body[len] == 0) body[len] = ' '; }
}
}
- return (*ss == NULL)? US"" : *ss;
+ return *ss ? *ss : US"";
case vtype_todbsdin: /* BSD inbox time of day */
return tod_stamp(tod_bsdin);
return tod_stamp(tod_log_datestamp_daily);
case vtype_reply: /* Get reply address */
- s = find_header(US"reply-to:", exists_only, newsize, TRUE,
- headers_charset);
- if (s != NULL) while (isspace(*s)) s++;
- if (s == NULL || *s == 0)
+ 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 || !*s)
{
*newsize = 0; /* For the *s==0 case */
- s = find_header(US"from:", exists_only, newsize, TRUE, headers_charset);
+ s = find_header(US"from:", newsize,
+ exists_only ? FH_EXISTS_ONLY|FH_WANT_RAW : FH_WANT_RAW,
+ headers_charset);
}
- if (s != NULL)
+ if (s)
{
uschar *t;
while (isspace(*s)) s++;
while (t > s && isspace(t[-1])) t--;
*t = 0;
}
- return (s == NULL)? US"" : s;
+ return s ? s : US"";
case vtype_string_func:
{
+
/*************************************************
* Read and expand substrings *
*************************************************/
}
DEBUG(D_expand)
- debug_printf("expanding: acl: %s arg: %s%s\n",
+ debug_printf_indent("expanding: acl: %s arg: %s%s\n",
sub[0],
acl_narg>0 ? acl_arg[0] : US"<none>",
acl_narg>1 ? " +more" : "");
yield == NULL we are in a skipping state, and don't care about the answer. */
case ECOND_DEF:
- if (*s != ':')
{
- expand_string_message = US"\":\" expected after \"def\"";
- return NULL;
- }
+ uschar * t;
+
+ if (*s != ':')
+ {
+ expand_string_message = US"\":\" expected after \"def\"";
+ return NULL;
+ }
- s = read_name(name, 256, s+1, US"_");
+ s = read_name(name, 256, 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
- omitted. Set a flag to adjust a subsequent error message in this case. */
+ /* 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
+ omitted. Set a flag to adjust a subsequent error message in this case. */
- if (Ustrncmp(name, "h_", 2) == 0 ||
- Ustrncmp(name, "rh_", 3) == 0 ||
- Ustrncmp(name, "bh_", 3) == 0 ||
- Ustrncmp(name, "header_", 7) == 0 ||
- Ustrncmp(name, "rheader_", 8) == 0 ||
- Ustrncmp(name, "bheader_", 8) == 0)
- {
- s = read_header_name(name, 256, s);
- /* {-for-text-editors */
- if (Ustrchr(name, '}') != NULL) malformed_header = TRUE;
- if (yield != NULL) *yield =
- (find_header(name, TRUE, NULL, FALSE, NULL) != NULL) == testfor;
- }
+ if ( ( *(t = name) == 'h'
+ || (*t == 'r' || *t == 'l' || *t == 'b') && *++t == 'h'
+ )
+ && (*++t == '_' || Ustrncmp(t, "eader_", 6) == 0)
+ )
+ {
+ s = read_header_name(name, 256, s);
+ /* {-for-text-editors */
+ if (Ustrchr(name, '}') != NULL) malformed_header = TRUE;
+ if (yield) *yield =
+ (find_header(name, NULL, FH_EXISTS_ONLY, NULL) != NULL) == testfor;
+ }
- /* Test for a variable's having a non-empty value. A non-existent variable
- causes an expansion failure. */
+ /* Test for a variable's having a non-empty value. A non-existent variable
+ causes an expansion failure. */
- else
- {
- uschar *value = find_variable(name, TRUE, yield == NULL, NULL);
- if (value == NULL)
+ else
{
- expand_string_message = (name[0] == 0)?
- string_sprintf("variable name omitted after \"def:\"") :
- string_sprintf("unknown variable \"%s\" after \"def:\"", name);
- check_variable_error_message(name);
- return NULL;
+ 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);
+ check_variable_error_message(name);
+ return NULL;
+ }
+ if (yield) *yield = (t[0] != 0) == testfor;
}
- if (yield != NULL) *yield = (value[0] != 0) == testfor;
- }
- return s;
+ return s;
+ }
/* first_delivery tests for first delivery attempt */
case ECOND_FIRST_DELIVERY:
- if (yield != NULL) *yield = deliver_firsttime == testfor;
+ if (yield != NULL) *yield = f.deliver_firsttime == testfor;
return s;
uschar *sub[10];
uschar *user_msg;
BOOL cond = FALSE;
- int size = 0;
- int ptr = 0;
while (isspace(*s)) s++;
if (*s++ != '{') goto COND_FAILED_CURLY_START; /*}*/
case 3: return NULL;
}
- *resetok = FALSE; /* eval_acl() might allocate; do not reclaim */
- if (yield != NULL) switch(eval_acl(sub, nelem(sub), &user_msg))
+ if (yield != NULL)
+ {
+ *resetok = FALSE; /* eval_acl() might allocate; do not reclaim */
+ switch(eval_acl(sub, nelem(sub), &user_msg))
{
case OK:
cond = TRUE;
case FAIL:
lookup_value = NULL;
if (user_msg)
- {
- lookup_value = string_cat(NULL, &size, &ptr, user_msg);
- lookup_value[ptr] = '\0';
- }
+ lookup_value = string_copy(user_msg);
*yield = cond == testfor;
break;
case DEFER:
- expand_string_forcedfail = TRUE;
+ f.expand_string_forcedfail = TRUE;
/*FALLTHROUGH*/
default:
expand_string_message = string_sprintf("error from acl \"%s\"", sub[0]);
return NULL;
}
+ }
return s;
}
"after \"%s\"", name);
return NULL;
}
- sub[i] = expand_string_internal(s+1, TRUE, &s, yield == NULL,
- honour_dollar, resetok);
- if (sub[i] == NULL) return NULL;
+ if (!(sub[i] = expand_string_internal(s+1, TRUE, &s, yield == NULL,
+ honour_dollar, resetok)))
+ return NULL;
+ DEBUG(D_expand) if (i == 1 && !sub2_honour_dollar && Ustrchr(sub[1], '$'))
+ debug_printf_indent("WARNING: the second arg is NOT expanded,"
+ " for security reasons\n");
if (*s++ != '}') goto COND_FAILED_CURLY_END;
/* Convert to numerical if required; we know that the names of all the
{
num[i] = 0;
DEBUG(D_expand)
- debug_printf("empty string cast to zero for numerical comparison\n");
+ debug_printf_indent("empty string cast to zero for numerical comparison\n");
}
else
{
uschar *save_iterate_item = iterate_item;
int (*compare)(const uschar *, const uschar *);
- DEBUG(D_expand) debug_printf("condition: %s\n", name);
+ DEBUG(D_expand) debug_printf_indent("condition: %s item: %s\n", name, sub[0]);
tempcond = FALSE;
compare = cond_type == ECOND_INLISTI
? strcmpic : (int (*)(const uschar *, const uschar *)) strcmp;
while ((iterate_item = string_nextinlist(&list, &sep, NULL, 0)))
+ {
+ DEBUG(D_expand) debug_printf_indent(" compare %s\n", iterate_item);
if (compare(sub[0], iterate_item) == 0)
{
tempcond = TRUE;
break;
}
+ }
iterate_item = save_iterate_item;
}
int sep = 0;
uschar *save_iterate_item = iterate_item;
- DEBUG(D_expand) debug_printf("condition: %s\n", name);
+ DEBUG(D_expand) debug_printf_indent("condition: %s\n", name);
while (isspace(*s)) s++;
if (*s++ != '{') goto COND_FAILED_CURLY_START; /* }-for-text-editors */
list = sub[0];
while ((iterate_item = string_nextinlist(&list, &sep, NULL, 0)) != NULL)
{
- DEBUG(D_expand) debug_printf("%s: $item = \"%s\"\n", name, iterate_item);
+ DEBUG(D_expand) debug_printf_indent("%s: $item = \"%s\"\n", name, iterate_item);
if (!eval_condition(sub[1], resetok, &tempcond))
{
expand_string_message = string_sprintf("%s inside \"%s\" condition",
iterate_item = save_iterate_item;
return NULL;
}
- DEBUG(D_expand) debug_printf("%s: condition evaluated to %s\n", name,
+ DEBUG(D_expand) debug_printf_indent("%s: condition evaluated to %s\n", name,
tempcond? "true":"false");
if (yield != NULL) *yield = (tempcond == testfor);
}
}
DEBUG(D_expand)
- debug_printf("considering %s: %s\n", ourname, len ? t : US"<empty>");
+ debug_printf_indent("considering %s: %s\n", ourname, len ? t : US"<empty>");
/* logic for the lax case from expand_check_condition(), which also does
expands, and the logic is both short and stable enough that there should
be no maintenance burden from replicating it. */
"value \"%s\"", t);
return NULL;
}
- DEBUG(D_expand) debug_printf("%s: condition evaluated to %s\n", ourname,
+ DEBUG(D_expand) debug_printf_indent("%s: condition evaluated to %s\n", ourname,
boolvalue? "true":"false");
if (yield != NULL) *yield = (boolvalue == testfor);
return s;
yes TRUE if the first string is to be used, else use the second
save_lookup a value to put back into lookup_value before the 2nd expansion
sptr points to the input string pointer
- yieldptr points to the output string pointer
- sizeptr points to the output string size
- ptrptr points to the output string pointer
+ yieldptr points to the output growable-string pointer
type "lookup", "if", "extract", "run", "env", "listextract" or
"certextract" for error message
resetok if not NULL, pointer to flag - write FALSE if unsafe to reset
static int
process_yesno(BOOL skipping, BOOL yes, uschar *save_lookup, const uschar **sptr,
- uschar **yieldptr, int *sizeptr, int *ptrptr, uschar *type, BOOL *resetok)
+ gstring ** yieldptr, uschar *type, BOOL *resetok)
{
int rc = 0;
const uschar *s = *sptr; /* Local value */
while (isspace(*s)) s++;
if (*s == '}')
{
- if (!skipping)
- if (type[0] == 'i')
- {
- if (yes) *yieldptr = string_catn(*yieldptr, sizeptr, ptrptr, US"true", 4);
- }
- else
- {
- if (yes && lookup_value)
- *yieldptr = string_cat(*yieldptr, sizeptr, ptrptr, lookup_value);
- lookup_value = save_lookup;
- }
+ if (type[0] == 'i')
+ {
+ if (yes && !skipping)
+ *yieldptr = string_catn(*yieldptr, US"true", 4);
+ }
+ else
+ {
+ if (yes && lookup_value && !skipping)
+ *yieldptr = string_cat(*yieldptr, lookup_value);
+ lookup_value = save_lookup;
+ }
s++;
goto RETURN;
}
be the case if we were already skipping). */
sub1 = expand_string_internal(s, TRUE, &s, !yes, TRUE, resetok);
-if (sub1 == NULL && (yes || !expand_string_forcedfail)) goto FAILED;
-expand_string_forcedfail = FALSE;
+if (sub1 == NULL && (yes || !f.expand_string_forcedfail)) goto FAILED;
+f.expand_string_forcedfail = FALSE;
if (*s++ != '}')
{
errwhere = US"'yes' part did not end with '}'";
/* If we want the first string, add it to the output */
if (yes)
- *yieldptr = string_cat(*yieldptr, sizeptr, ptrptr, sub1);
+ *yieldptr = string_cat(*yieldptr, sub1);
/* If this is called from a lookup/env or a (cert)extract, we want to restore
$value to what it was at the start of the item, so that it has this value
if (*s == '{')
{
sub2 = expand_string_internal(s+1, TRUE, &s, yes || skipping, TRUE, resetok);
- if (sub2 == NULL && (!yes || !expand_string_forcedfail)) goto FAILED;
- expand_string_forcedfail = FALSE;
+ if (sub2 == NULL && (!yes || !f.expand_string_forcedfail)) goto FAILED;
+ f.expand_string_forcedfail = FALSE;
if (*s++ != '}')
{
errwhere = US"'no' part did not start with '{'";
/* If we want the second string, add it to the output */
if (!yes)
- *yieldptr = string_cat(*yieldptr, sizeptr, ptrptr, sub2);
+ *yieldptr = string_cat(*yieldptr, sub2);
}
/* If there is no second string, but the word "fail" is present when the use of
}
expand_string_message =
string_sprintf("\"%s\" failed and \"fail\" requested", type);
- expand_string_forcedfail = TRUE;
+ f.expand_string_forcedfail = TRUE;
goto FAILED;
}
}
static uschar *
prvs_hmac_sha1(uschar *address, uschar *key, uschar *key_num, uschar *daystamp)
{
-uschar *hash_source, *p;
-int size = 0,offset = 0,i;
+gstring * hash_source;
+uschar * p;
+int i;
hctx h;
uschar innerhash[20];
uschar finalhash[20];
if (Ustrlen(key) > 64)
return NULL;
-hash_source = string_catn(NULL, &size, &offset, key_num, 1);
-hash_source = string_catn(hash_source, &size, &offset, daystamp, 3);
-hash_source = string_cat(hash_source, &size, &offset, address);
-hash_source[offset] = '\0';
+hash_source = string_catn(NULL, key_num, 1);
+hash_source = string_catn(hash_source, daystamp, 3);
+hash_source = string_cat(hash_source, address);
+(void) string_from_gstring(hash_source);
-DEBUG(D_expand) debug_printf("prvs: hash source is '%s'\n", hash_source);
+DEBUG(D_expand)
+ debug_printf_indent("prvs: hash source is '%s'\n", hash_source->s);
memset(innerkey, 0x36, 64);
memset(outerkey, 0x5c, 64);
chash_start(HMAC_SHA1, &h);
chash_mid(HMAC_SHA1, &h, innerkey);
-chash_end(HMAC_SHA1, &h, hash_source, offset, innerhash);
+chash_end(HMAC_SHA1, &h, hash_source->s, hash_source->ptr, innerhash);
chash_start(HMAC_SHA1, &h);
chash_mid(HMAC_SHA1, &h, outerkey);
Arguments:
f the FILE
- yield pointer to the expandable string
- sizep pointer to the current size
- ptrp pointer to the current position
+ yield pointer to the expandable string struct
eol newline replacement string, or NULL
-Returns: new value of string pointer
+Returns: new pointer for expandable string, terminated if non-null
*/
-static uschar *
-cat_file(FILE *f, uschar *yield, int *sizep, int *ptrp, uschar *eol)
+static gstring *
+cat_file(FILE *f, gstring *yield, uschar *eol)
{
uschar buffer[1024];
{
int len = Ustrlen(buffer);
if (eol && buffer[len-1] == '\n') len--;
- yield = string_catn(yield, sizep, ptrp, buffer, len);
+ yield = string_catn(yield, buffer, len);
if (eol && buffer[len])
- yield = string_cat(yield, sizep, ptrp, eol);
+ yield = string_cat(yield, eol);
}
-if (yield) yield[*ptrp] = 0;
-
+(void) string_from_gstring(yield);
return yield;
}
+#ifdef SUPPORT_TLS
+static gstring *
+cat_file_tls(void * tls_ctx, gstring * yield, uschar * eol)
+{
+int rc;
+uschar * s;
+uschar buffer[1024];
+
+while ((rc = tls_read(tls_ctx, buffer, sizeof(buffer))) > 0)
+ for (s = buffer; rc--; s++)
+ yield = eol && *s == '\n'
+ ? string_cat(yield, eol) : string_catn(yield, s, 1);
+
+/* We assume that all errors, and any returns of zero bytes,
+are actually EOF. */
+
+(void) string_from_gstring(yield);
+return yield;
+}
+#endif
/*************************************************
/* 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
- * -N*M is INT_MIN will yielf INT_MIN.
+ * -N*M is INT_MIN will yield INT_MIN.
* Since we don't support floating point, this is somewhat simpler.
* Ideally, we'd return an error, but since we overflow for all other
* arithmetic, consistency suggests otherwise, but what's the correct value
+/* Return pointer to dewrapped string, with enclosing specified chars removed.
+The given string is modified on return. Leading whitespace is skipped while
+looking for the opening wrap character, then the rest is scanned for the trailing
+(non-escaped) wrap character. A backslash in the string will act as an escape.
+
+A nul is written over the trailing wrap, and a pointer to the char after the
+leading wrap is returned.
+
+Arguments:
+ s String for de-wrapping
+ wrap Two-char string, the first being the opener, second the closer wrapping
+ character
+Return:
+ Pointer to de-wrapped string, or NULL on error (with expand_string_message set).
+*/
+
+static uschar *
+dewrap(uschar * s, const uschar * wrap)
+{
+uschar * p = s;
+unsigned depth = 0;
+BOOL quotesmode = wrap[0] == wrap[1];
+
+while (isspace(*p)) p++;
+
+if (*p == *wrap)
+ {
+ s = ++p;
+ wrap++;
+ while (*p)
+ {
+ if (*p == '\\') p++;
+ else if (!quotesmode && *p == wrap[-1]) depth++;
+ else if (*p == *wrap)
+ if (depth == 0)
+ {
+ *p = '\0';
+ return s;
+ }
+ else
+ depth--;
+ p++;
+ }
+ }
+expand_string_message = string_sprintf("missing '%c'", *wrap);
+return NULL;
+}
+
+
+/* Pull off the leading array or object element, returning
+a copy in an allocated string. Update the list pointer.
+
+The element may itself be an abject or array.
+*/
+
+uschar *
+json_nextinlist(const uschar ** list)
+{
+unsigned array_depth = 0, object_depth = 0;
+const uschar * s = *list, * item;
+
+while (isspace(*s)) s++;
+
+for (item = s;
+ *s && (*s != ',' || array_depth != 0 || object_depth != 0);
+ s++)
+ switch (*s)
+ {
+ case '[': array_depth++; break;
+ case ']': array_depth--; break;
+ case '{': object_depth++; break;
+ case '}': object_depth--; break;
+ }
+*list = *s ? s+1 : s;
+item = string_copyn(item, s - item);
+DEBUG(D_expand) debug_printf_indent(" json ele: '%s'\n", item);
+return US item;
+}
+
+
+
/*************************************************
* Expand string *
*************************************************/
We use an internal routine recursively to handle embedded substrings. The
external function follows. The yield is NULL if the expansion failed, and there
are two cases: if something collapsed syntactically, or if "fail" was given
-as the action on a lookup failure. These can be distinguised by looking at the
+as the action on a lookup failure. These can be distinguished by looking at the
variable expand_string_forcedfail, which is TRUE in the latter case.
The skipping flag is set true when expanding a substring that isn't actually
expand_string_internal(const uschar *string, BOOL ket_ends, const uschar **left,
BOOL skipping, BOOL honour_dollar, BOOL *resetok_p)
{
-int ptr = 0;
-int size = Ustrlen(string)+ 64;
-uschar *yield = store_get(size);
+gstring * yield = string_get(Ustrlen(string) + 64);
int item_type;
const uschar *s = string;
uschar *save_expand_nstring[EXPAND_MAXN+1];
int save_expand_nlength[EXPAND_MAXN+1];
BOOL resetok = TRUE;
+expand_level++;
DEBUG(D_expand)
- debug_printf("%s: %s\n", skipping ? " scanning" : "considering", string);
+ DEBUG(D_noutf8)
+ debug_printf_indent("/%s: %s\n",
+ skipping ? "---scanning" : "considering", string);
+ else
+ debug_printf_indent(UTF8_DOWN_RIGHT "%s: %s\n",
+ skipping
+ ? UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ "scanning"
+ : "considering",
+ string);
-expand_string_forcedfail = FALSE;
+f.expand_string_forcedfail = FALSE;
expand_string_message = US"";
while (*s != 0)
{
const uschar * t = s + 2;
for (s = t; *s != 0; s++) if (*s == '\\' && s[1] == 'N') break;
- yield = string_catn(yield, &size, &ptr, t, s - t);
+ yield = string_catn(yield, t, s - t);
if (*s != 0) s += 2;
}
uschar ch[1];
ch[0] = string_interpret_escape(&s);
s++;
- yield = string_catn(yield, &size, &ptr, ch, 1);
+ yield = string_catn(yield, ch, 1);
}
continue;
if (*s != '$' || !honour_dollar)
{
- yield = string_catn(yield, &size, &ptr, s++, 1);
+ yield = string_catn(yield, s++, 1);
continue;
}
{
int len;
int newsize = 0;
+ gstring * g = NULL;
+ uschar * t;
s = read_name(name, sizeof(name), s, US"_");
/* If this is the first thing to be expanded, release the pre-allocated
buffer. */
- if (ptr == 0 && yield != NULL)
+ if (!yield)
+ g = store_get(sizeof(gstring));
+ else if (yield->ptr == 0)
{
if (resetok) store_reset(yield);
yield = NULL;
- size = 0;
+ g = store_get(sizeof(gstring)); /* alloc _before_ calling find_variable() */
}
/* Header */
- if (Ustrncmp(name, "h_", 2) == 0 ||
- Ustrncmp(name, "rh_", 3) == 0 ||
- Ustrncmp(name, "bh_", 3) == 0 ||
- Ustrncmp(name, "header_", 7) == 0 ||
- Ustrncmp(name, "rheader_", 8) == 0 ||
- Ustrncmp(name, "bheader_", 8) == 0)
+ if ( ( *(t = name) == 'h'
+ || (*t == 'r' || *t == 'l' || *t == 'b') && *++t == 'h'
+ )
+ && (*++t == '_' || Ustrncmp(t, "eader_", 6) == 0)
+ )
{
- BOOL want_raw = (name[0] == 'r')? TRUE : FALSE;
- uschar *charset = (name[0] == 'b')? NULL : headers_charset;
+ unsigned flags = *name == 'r' ? FH_WANT_RAW
+ : *name == 'l' ? FH_WANT_RAW|FH_WANT_LIST
+ : 0;
+ uschar * charset = *name == 'b' ? NULL : headers_charset;
+
s = read_header_name(name, sizeof(name), s);
- value = find_header(name, FALSE, &newsize, want_raw, charset);
+ value = find_header(name, &newsize, flags, charset);
/* If we didn't find the header, and the header contains a closing brace
character, this may be a user error where the terminating colon
has been omitted. Set a flag to adjust the error message in this case.
But there is no error here - nothing gets inserted. */
- if (value == NULL)
+ if (!value)
{
if (Ustrchr(name, '}') != NULL) malformed_header = TRUE;
continue;
size of that buffer. If this is the first thing in an expansion string,
yield will be NULL; just point it at the new store instead of copying. Many
expansion strings contain just one reference, so this is a useful
- optimization, especially for humungous headers. */
+ optimization, especially for humungous headers. We need to use a gstring
+ structure that is not allocated after that new-buffer, else a later store
+ reset in the middle of the buffer will make it inaccessible. */
len = Ustrlen(value);
- if (yield == NULL && newsize != 0)
+ if (!yield && newsize != 0)
{
- yield = value;
- size = newsize;
- ptr = len;
+ yield = g;
+ yield->size = newsize;
+ yield->ptr = len;
+ yield->s = value;
}
- else yield = string_catn(yield, &size, &ptr, value, len);
+ else
+ yield = string_catn(yield, value, len);
continue;
}
int n;
s = read_cnumber(&n, s);
if (n >= 0 && n <= expand_nmax)
- yield = string_catn(yield, &size, &ptr, expand_nstring[n],
- expand_nlength[n]);
+ yield = string_catn(yield, expand_nstring[n], expand_nlength[n]);
continue;
}
goto EXPAND_FAILED;
}
if (n >= 0 && n <= expand_nmax)
- yield = string_catn(yield, &size, &ptr, expand_nstring[n],
- expand_nlength[n]);
+ yield = string_catn(yield, expand_nstring[n], expand_nlength[n]);
continue;
}
case OK:
case FAIL:
DEBUG(D_expand)
- debug_printf("acl expansion yield: %s\n", user_msg);
+ debug_printf_indent("acl expansion yield: %s\n", user_msg);
if (user_msg)
- yield = string_cat(yield, &size, &ptr, user_msg);
+ yield = string_cat(yield, user_msg);
continue;
case DEFER:
- expand_string_forcedfail = TRUE;
+ f.expand_string_forcedfail = TRUE;
/*FALLTHROUGH*/
default:
expand_string_message = string_sprintf("error from acl \"%s\"", sub[0]);
}
}
+ case EITEM_AUTHRESULTS:
+ /* ${authresults {mysystemname}} */
+ {
+ uschar *sub_arg[1];
+
+ switch(read_subs(sub_arg, nelem(sub_arg), 1, &s, skipping, TRUE, name,
+ &resetok))
+ {
+ case 1: goto EXPAND_FAILED_CURLY;
+ case 2:
+ case 3: goto EXPAND_FAILED;
+ }
+
+ yield = string_append(yield, 3,
+ US"Authentication-Results: ", sub_arg[0], US"; none");
+ yield->ptr -= 6;
+
+ yield = authres_local(yield, sub_arg[0]);
+ yield = authres_iprev(yield);
+ yield = authres_smtpauth(yield);
+#ifdef SUPPORT_SPF
+ yield = authres_spf(yield);
+#endif
+#ifndef DISABLE_DKIM
+ yield = authres_dkim(yield);
+#endif
+#ifdef EXPERIMENTAL_DMARC
+ yield = authres_dmarc(yield);
+#endif
+#ifdef EXPERIMENTAL_ARC
+ yield = authres_arc(yield);
+#endif
+ continue;
+ }
+
/* Handle conditionals - preserve the values of the numerical expansion
variables in case they get changed by a regular expression match in the
condition. If not, they retain their external settings. At the end
save_expand_strings(save_expand_nstring, save_expand_nlength);
while (isspace(*s)) s++;
- next_s = eval_condition(s, &resetok, skipping? NULL : &cond);
+ next_s = eval_condition(s, &resetok, skipping ? NULL : &cond);
if (next_s == NULL) goto EXPAND_FAILED; /* message already set */
DEBUG(D_expand)
- debug_printf(" condition: %.*s\n result: %s\n",
- (int)(next_s - s), s,
- cond ? "true" : "false");
+ DEBUG(D_noutf8)
+ {
+ debug_printf_indent("|--condition: %.*s\n", (int)(next_s - s), s);
+ debug_printf_indent("|-----result: %s\n", cond ? "true" : "false");
+ }
+ else
+ {
+ debug_printf_indent(UTF8_VERT_RIGHT UTF8_HORIZ UTF8_HORIZ
+ "condition: %.*s\n",
+ (int)(next_s - s), s);
+ debug_printf_indent(UTF8_VERT_RIGHT UTF8_HORIZ UTF8_HORIZ
+ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ
+ "result: %s\n",
+ cond ? "true" : "false");
+ }
s = next_s;
lookup_value, /* value to reset for string2 */
&s, /* input pointer */
&yield, /* output pointer */
- &size, /* output size */
- &ptr, /* output current point */
US"if", /* condition type */
&resetok))
{
goto EXPAND_FAILED;
}
- if (!(encoded = imap_utf7_encode(sub_arg[0], headers_charset,
- sub_arg[1][0], sub_arg[2], &expand_string_message)))
- goto EXPAND_FAILED;
if (!skipping)
- yield = string_cat(yield, &size, &ptr, encoded);
+ {
+ if (!(encoded = imap_utf7_encode(sub_arg[0], headers_charset,
+ sub_arg[1][0], sub_arg[2], &expand_string_message)))
+ goto EXPAND_FAILED;
+ yield = string_cat(yield, encoded);
+ }
continue;
}
#endif
}
lookup_value = search_find(handle, filename, key, partial, affix,
affixlen, starflags, &expand_setup);
- if (search_find_defer)
+ if (f.search_find_defer)
{
expand_string_message =
string_sprintf("lookup of \"%s\" gave DEFER: %s",
save_lookup_value, /* value to reset for string2 */
&s, /* input pointer */
&yield, /* output pointer */
- &size, /* output size */
- &ptr, /* output current point */
US"lookup", /* condition type */
&resetok))
{
#else /* EXIM_PERL */
{
uschar *sub_arg[EXIM_PERL_MAX_ARGS + 2];
- uschar *new_yield;
+ gstring *new_yield;
if ((expand_forbid & RDO_PERL) != 0)
{
/* Call the function */
sub_arg[EXIM_PERL_MAX_ARGS + 1] = NULL;
- new_yield = call_perl_cat(yield, &size, &ptr, &expand_string_message,
+ new_yield = call_perl_cat(yield, &expand_string_message,
sub_arg[0], sub_arg + 1);
/* NULL yield indicates failure; if the message pointer has been set to
expand_string_message =
string_sprintf("Perl subroutine \"%s\" returned undef to force "
"failure", sub_arg[0]);
- expand_string_forcedfail = TRUE;
+ f.expand_string_forcedfail = TRUE;
}
goto EXPAND_FAILED;
}
/* Yield succeeded. Ensure forcedfail is unset, just in case it got
set during a callback from Perl. */
- expand_string_forcedfail = FALSE;
+ f.expand_string_forcedfail = FALSE;
yield = new_yield;
continue;
}
if (skipping) continue;
/* sub_arg[0] is the address */
- domain = Ustrrchr(sub_arg[0],'@');
- if ( (domain == NULL) || (domain == sub_arg[0]) || (Ustrlen(domain) == 1) )
+ if ( !(domain = Ustrrchr(sub_arg[0],'@'))
+ || domain == sub_arg[0] || Ustrlen(domain) == 1)
{
expand_string_message = US"prvs first argument must be a qualified email address";
goto EXPAND_FAILED;
}
- /* Calculate the hash. The second argument must be a single-digit
+ /* Calculate the hash. The third argument must be a single-digit
key number, or unset. */
- if (sub_arg[2] != NULL &&
- (!isdigit(sub_arg[2][0]) || sub_arg[2][1] != 0))
+ if ( sub_arg[2]
+ && (!isdigit(sub_arg[2][0]) || sub_arg[2][1] != 0))
{
- expand_string_message = US"prvs second argument must be a single digit";
+ expand_string_message = US"prvs third argument must be a single digit";
goto EXPAND_FAILED;
}
- p = prvs_hmac_sha1(sub_arg[0],sub_arg[1],sub_arg[2],prvs_daystamp(7));
- if (p == NULL)
+ p = prvs_hmac_sha1(sub_arg[0], sub_arg[1], sub_arg[2], prvs_daystamp(7));
+ if (!p)
{
expand_string_message = US"prvs hmac-sha1 conversion failed";
goto EXPAND_FAILED;
/* Now separate the domain from the local part */
*domain++ = '\0';
- yield = string_catn(yield, &size, &ptr, US"prvs=", 5);
- yield = string_catn(yield, &size, &ptr, sub_arg[2] ? sub_arg[2] : US"0", 1);
- yield = string_catn(yield, &size, &ptr, prvs_daystamp(7), 3);
- yield = string_catn(yield, &size, &ptr, p, 6);
- yield = string_catn(yield, &size, &ptr, US"=", 1);
- yield = string_cat (yield, &size, &ptr, sub_arg[0]);
- yield = string_catn(yield, &size, &ptr, US"@", 1);
- yield = string_cat (yield, &size, &ptr, domain);
+ yield = string_catn(yield, US"prvs=", 5);
+ yield = string_catn(yield, sub_arg[2] ? sub_arg[2] : US"0", 1);
+ yield = string_catn(yield, prvs_daystamp(7), 3);
+ yield = string_catn(yield, p, 6);
+ yield = string_catn(yield, US"=", 1);
+ yield = string_cat (yield, sub_arg[0]);
+ yield = string_catn(yield, US"@", 1);
+ yield = string_cat (yield, domain);
continue;
}
case EITEM_PRVSCHECK:
{
uschar *sub_arg[3];
- int mysize = 0, myptr = 0;
+ gstring * g;
const pcre *re;
uschar *p;
uschar *hash = string_copyn(expand_nstring[3],expand_nlength[3]);
uschar *domain = string_copyn(expand_nstring[5],expand_nlength[5]);
- DEBUG(D_expand) debug_printf("prvscheck localpart: %s\n", local_part);
- DEBUG(D_expand) debug_printf("prvscheck key number: %s\n", key_num);
- DEBUG(D_expand) debug_printf("prvscheck daystamp: %s\n", daystamp);
- DEBUG(D_expand) debug_printf("prvscheck hash: %s\n", hash);
- DEBUG(D_expand) debug_printf("prvscheck domain: %s\n", domain);
+ DEBUG(D_expand) debug_printf_indent("prvscheck localpart: %s\n", local_part);
+ DEBUG(D_expand) debug_printf_indent("prvscheck key number: %s\n", key_num);
+ DEBUG(D_expand) debug_printf_indent("prvscheck daystamp: %s\n", daystamp);
+ DEBUG(D_expand) debug_printf_indent("prvscheck hash: %s\n", hash);
+ DEBUG(D_expand) debug_printf_indent("prvscheck domain: %s\n", domain);
/* Set up expansion variables */
- prvscheck_address = string_cat (NULL, &mysize, &myptr, local_part);
- prvscheck_address = string_catn(prvscheck_address, &mysize, &myptr, US"@", 1);
- prvscheck_address = string_cat (prvscheck_address, &mysize, &myptr, domain);
- prvscheck_address[myptr] = '\0';
+ g = string_cat (NULL, local_part);
+ g = string_catn(g, US"@", 1);
+ g = string_cat (g, domain);
+ prvscheck_address = string_from_gstring(g);
prvscheck_keynum = string_copy(key_num);
/* Now expand the second argument */
p = prvs_hmac_sha1(prvscheck_address, sub_arg[0], prvscheck_keynum,
daystamp);
- if (p == NULL)
+ if (!p)
{
expand_string_message = US"hmac-sha1 conversion failed";
goto EXPAND_FAILED;
}
- DEBUG(D_expand) debug_printf("prvscheck: received hash is %s\n", hash);
- DEBUG(D_expand) debug_printf("prvscheck: own hash is %s\n", p);
+ DEBUG(D_expand) debug_printf_indent("prvscheck: received hash is %s\n", hash);
+ DEBUG(D_expand) debug_printf_indent("prvscheck: own hash is %s\n", p);
if (Ustrcmp(p,hash) == 0)
{
if (iexpire >= inow)
{
prvscheck_result = US"1";
- DEBUG(D_expand) debug_printf("prvscheck: success, $pvrs_result set to 1\n");
+ DEBUG(D_expand) debug_printf_indent("prvscheck: success, $pvrs_result set to 1\n");
}
- else
+ else
{
prvscheck_result = NULL;
- DEBUG(D_expand) debug_printf("prvscheck: signature expired, $pvrs_result unset\n");
+ DEBUG(D_expand) debug_printf_indent("prvscheck: signature expired, $pvrs_result unset\n");
}
}
else
{
prvscheck_result = NULL;
- DEBUG(D_expand) debug_printf("prvscheck: hash failure, $pvrs_result unset\n");
+ DEBUG(D_expand) debug_printf_indent("prvscheck: hash failure, $pvrs_result unset\n");
}
/* Now expand the final argument. We leave this till now so that
case 3: goto EXPAND_FAILED;
}
- yield = string_cat(yield, &size, &ptr,
+ yield = string_cat(yield,
!sub_arg[0] || !*sub_arg[0] ? prvscheck_address : sub_arg[0]);
/* Reset the "internal" variables afterwards, because they are in
prvscheck_keynum = NULL;
}
else
- {
/* Does not look like a prvs encoded address, return the empty string.
We need to make sure all subs are expanded first, so as to skip over
the entire item. */
case 2:
case 3: goto EXPAND_FAILED;
}
- }
continue;
}
/* Open the file and read it */
- f = Ufopen(sub_arg[0], "rb");
- if (f == NULL)
+ if (!(f = Ufopen(sub_arg[0], "rb")))
{
expand_string_message = string_open_failed(errno, "%s", sub_arg[0]);
goto EXPAND_FAILED;
}
- yield = cat_file(f, yield, &size, &ptr, sub_arg[1]);
+ yield = cat_file(f, yield, sub_arg[1]);
(void)fclose(f);
continue;
}
- /* Handle "readsocket" to insert data from a Unix domain socket */
+ /* Handle "readsocket" to insert data from a socket, either
+ Inet or Unix domain */
case EITEM_READSOCK:
{
int fd;
int timeout = 5;
- int save_ptr = ptr;
- FILE *f;
- struct sockaddr_un sockun; /* don't call this "sun" ! */
- uschar *arg;
- uschar *sub_arg[4];
-
- if ((expand_forbid & RDO_READSOCK) != 0)
+ 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)
{
expand_string_message = US"socket insertions are not permitted";
goto EXPAND_FAILED;
case 3: goto EXPAND_FAILED;
}
- /* Sort out timeout, if given */
+ /* Grab the request string, if any */
+
+ reqstr.data = sub_arg[1];
+ reqstr.len = Ustrlen(sub_arg[1]);
- if (sub_arg[2] != NULL)
+ /* 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])
{
- timeout = readconf_readtime(sub_arg[2], 0, FALSE);
- if (timeout < 0)
+ 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",
- sub_arg[2]);
+ 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 */
+ 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 (Ustrncmp(sub_arg[0], "inet:", 5) == 0)
{
int port;
- uschar *server_name = sub_arg[0] + 5;
- uschar *port_name = Ustrrchr(server_name, ':');
+ uschar * port_name;
+
+ server_name = sub_arg[0] + 5;
+ port_name = Ustrrchr(server_name, ':');
/* Sort out the port */
- if (port_name == NULL)
+ if (!port_name)
{
expand_string_message =
string_sprintf("missing port for readsocket %s", sub_arg[0]);
else
{
struct servent *service_info = getservbyname(CS port_name, "tcp");
- if (service_info == NULL)
+ if (!service_info)
{
expand_string_message = string_sprintf("unknown port \"%s\"",
port_name);
port = ntohs(service_info->s_port);
}
- if ((fd = ip_connectedsocket(SOCK_STREAM, server_name, port, port,
- timeout, NULL, &expand_string_message)) < 0)
- goto SOCK_FAIL;
+ /*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",
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);
+ ALARM(timeout);
rc = connect(fd, (struct sockaddr *)(&sockun), sizeof(sockun));
- alarm(0);
+ ALARM_CLR(0);
if (sigalrm_seen)
{
expand_string_message = US "socket connect timed out";
"%s: %s", sub_arg[0], strerror(errno));
goto SOCK_FAIL;
}
+ host.name = server_name;
+ host.address = US"";
}
- DEBUG(D_expand) debug_printf("connected to socket %s\n", sub_arg[0]);
+ DEBUG(D_expand) debug_printf_indent("connected to socket %s\n", sub_arg[0]);
+
+#ifdef SUPPORT_TLS
+ if (do_tls)
+ {
+ 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;
+ }
+ }
+#endif
/* Allow sequencing of test actions */
- if (running_in_test_harness) millisleep(100);
+ if (f.running_in_test_harness) millisleep(100);
- /* Write the request string, if not empty */
+ /* Write the request string, if not empty or already done */
- if (sub_arg[1][0] != 0)
+ if (reqstr.len)
{
- int len = Ustrlen(sub_arg[1]);
- DEBUG(D_expand) debug_printf("writing \"%s\" to socket\n",
- sub_arg[1]);
- if (write(fd, sub_arg[1], len) != 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));
recognise that it is their turn to do some work. Just in case some
system doesn't have this function, make it conditional. */
- #ifdef SHUT_WR
- shutdown(fd, SHUT_WR);
- #endif
+#ifdef SHUT_WR
+ if (!tls_ctx && do_shutdown) shutdown(fd, SHUT_WR);
+#endif
- if (running_in_test_harness) millisleep(100);
+ if (f.running_in_test_harness) millisleep(100);
/* Now we need to read from the socket, under a timeout. The function
that reads a file can be used. */
- f = fdopen(fd, "rb");
+ if (!tls_ctx)
+ fp = fdopen(fd, "rb");
sigalrm_seen = FALSE;
- alarm(timeout);
- yield = cat_file(f, yield, &size, &ptr, sub_arg[3]);
- alarm(0);
- (void)fclose(f);
+ 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);
+
+#ifdef SUPPORT_TLS
+ if (tls_ctx)
+ {
+ tls_close(tls_ctx, TRUE);
+ close(fd);
+ }
+ 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)
{
- ptr = save_ptr;
+ yield->ptr = save_ptr;
expand_string_message = US "socket read timed out";
goto SOCK_FAIL;
}
while (isspace(*s)) s++;
}
- readsock_done:
+ READSOCK_DONE:
if (*s++ != '}')
{
expand_string_message = US"missing '}' closing readsocket";
socket, or timeout on reading. If another substring follows, expand and
use it. Otherwise, those conditions give expand errors. */
- SOCK_FAIL:
+ SOCK_FAIL:
if (*s != '{') goto EXPAND_FAILED;
DEBUG(D_any) debug_printf("%s\n", expand_string_message);
if (!(arg = expand_string_internal(s+1, TRUE, &s, FALSE, TRUE, &resetok)))
goto EXPAND_FAILED;
- yield = string_cat(yield, &size, &ptr, arg);
+ yield = string_cat(yield, arg);
if (*s++ != '}')
{
expand_string_message = US"missing '}' closing failstring for readsocket";
goto EXPAND_FAILED_CURLY;
}
while (isspace(*s)) s++;
- goto readsock_done;
+ goto READSOCK_DONE;
}
/* Handle "run" to execute a program. */
const uschar **argv;
pid_t pid;
int fd_in, fd_out;
- int lsize = 0, lptr = 0;
if ((expand_forbid & RDO_RUN) != 0)
{
resetok = FALSE;
f = fdopen(fd_out, "rb");
sigalrm_seen = FALSE;
- alarm(60);
- lookup_value = cat_file(f, NULL, &lsize, &lptr, NULL);
- alarm(0);
+ ALARM(60);
+ lookup_value = string_from_gstring(cat_file(f, NULL, NULL));
+ ALARM_CLR(0);
(void)fclose(f);
/* Wait for the process to finish, applying the timeout, and inspect its
lookup_value, /* value to reset for string2 */
&s, /* input pointer */
&yield, /* output pointer */
- &size, /* output size */
- &ptr, /* output current point */
US"run", /* condition type */
&resetok))
{
case EITEM_TR:
{
- int oldptr = ptr;
+ int oldptr = yield->ptr;
int o2m;
uschar *sub[3];
case 3: goto EXPAND_FAILED;
}
- yield = string_cat(yield, &size, &ptr, sub[0]);
+ yield = string_cat(yield, sub[0]);
o2m = Ustrlen(sub[2]) - 1;
- if (o2m >= 0) for (; oldptr < ptr; oldptr++)
+ if (o2m >= 0) for (; oldptr < yield->ptr; oldptr++)
{
- uschar *m = Ustrrchr(sub[1], yield[oldptr]);
+ uschar *m = Ustrrchr(sub[1], yield->s[oldptr]);
if (m != NULL)
{
int o = m - sub[1];
- yield[oldptr] = sub[2][(o < o2m)? o : o2m];
+ yield->s[oldptr] = sub[2][(o < o2m)? o : o2m];
}
}
extract_substr(sub[2], val[0], val[1], &len);
if (ret == NULL) goto EXPAND_FAILED;
- yield = string_catn(yield, &size, &ptr, ret, len);
+ yield = string_catn(yield, ret, len);
continue;
}
DEBUG(D_any) debug_printf("HMAC[%s](%.*s,%s)=%.*s\n",
sub[0], (int)keylen, keyptr, sub[2], hashlen*2, finalhash_hex);
- yield = string_catn(yield, &size, &ptr, finalhash_hex, hashlen*2);
+ yield = string_catn(yield, finalhash_hex, hashlen*2);
}
continue;
}
emptyopt = 0;
continue;
}
- yield = string_catn(yield, &size, &ptr, subject+moffset, slen-moffset);
+ yield = string_catn(yield, subject+moffset, slen-moffset);
break;
}
/* Copy the characters before the match, plus the expanded insertion. */
- yield = string_catn(yield, &size, &ptr, subject + moffset,
- ovector[0] - moffset);
+ yield = string_catn(yield, subject + moffset, ovector[0] - moffset);
insert = expand_string(sub[2]);
if (insert == NULL) goto EXPAND_FAILED;
- yield = string_cat(yield, &size, &ptr, insert);
+ yield = string_cat(yield, insert);
moffset = ovector[1];
moffsetextra = 0;
uschar *sub[3];
int save_expand_nmax =
save_expand_strings(save_expand_nstring, save_expand_nlength);
+ enum {extract_basic, extract_json} fmt = extract_basic;
+
+ while (isspace(*s)) s++;
+
+ /* Check for a format-variant specifier */
+
+ if (*s != '{') /*}*/
+ {
+ if (Ustrncmp(s, "json", 4) == 0) {fmt = extract_json; s += 4;}
+ }
/* While skipping we cannot rely on the data for expansions being
available (eg. $item) hence cannot decide on numeric vs. keyed.
- Read a maximum of 5 arguments (inclding the yes/no) */
+ Read a maximum of 5 arguments (including the yes/no) */
if (skipping)
{
- while (isspace(*s)) s++;
- for (j = 5; j > 0 && *s == '{'; j--)
+ for (j = 5; j > 0 && *s == '{'; j--) /*'}'*/
{
if (!expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok))
- goto EXPAND_FAILED; /*{*/
+ goto EXPAND_FAILED; /*'{'*/
if (*s++ != '}')
{
expand_string_message = US"missing '{' for arg of extract";
}
while (isspace(*s)) s++;
}
- if ( Ustrncmp(s, "fail", 4) == 0
+ if ( Ustrncmp(s, "fail", 4) == 0 /*'{'*/
&& (s[4] == '}' || s[4] == ' ' || s[4] == '\t' || !s[4])
)
{
s += 4;
while (isspace(*s)) s++;
- }
+ } /*'{'*/
if (*s != '}')
{
expand_string_message = US"missing '}' closing extract";
else for (i = 0, j = 2; i < j; i++) /* Read the proper number of arguments */
{
- while (isspace(*s)) s++;
- if (*s == '{') /*}*/
+ while (isspace(*s)) s++;
+ if (*s == '{') /*'}'*/
{
sub[i] = expand_string_internal(s+1, TRUE, &s, skipping, TRUE, &resetok);
- if (sub[i] == NULL) goto EXPAND_FAILED; /*{*/
+ if (sub[i] == NULL) goto EXPAND_FAILED; /*'{'*/
if (*s++ != '}')
{
expand_string_message = string_sprintf(
/* After removal of leading and trailing white space, the first
argument must not be empty; if it consists entirely of digits
(optionally preceded by a minus sign), this is a numerical
- extraction, and we expect 3 arguments. */
+ extraction, and we expect 3 arguments (normal) or 2 (json). */
if (i == 0)
{
if (*p == 0)
{
field_number *= x;
- j = 3; /* Need 3 args */
+ if (fmt != extract_json) j = 3; /* Need 3 args */
field_number_set = TRUE;
}
}
/* Extract either the numbered or the keyed substring into $value. If
skipping, just pretend the extraction failed. */
- lookup_value = skipping? NULL : field_number_set?
- expand_gettokened(field_number, sub[1], sub[2]) :
- expand_getkeyed(sub[0], sub[1]);
+ if (skipping)
+ lookup_value = NULL;
+ else switch (fmt)
+ {
+ case extract_basic:
+ lookup_value = field_number_set
+ ? expand_gettokened(field_number, sub[1], sub[2])
+ : expand_getkeyed(sub[0], sub[1]);
+ break;
+
+ case extract_json:
+ {
+ uschar * s, * item;
+ const uschar * list;
+
+ /* Array: Bracket-enclosed and comma-separated.
+ Object: Brace-enclosed, comma-sep list of name:value pairs */
+
+ if (!(s = dewrap(sub[1], field_number_set ? US"[]" : US"{}")))
+ {
+ expand_string_message =
+ string_sprintf("%s wrapping %s for extract json",
+ expand_string_message,
+ field_number_set ? "array" : "object");
+ goto EXPAND_FAILED_CURLY;
+ }
+
+ list = s;
+ if (field_number_set)
+ {
+ if (field_number <= 0)
+ {
+ expand_string_message = US"first argument of \"extract\" must "
+ "be greater than zero";
+ goto EXPAND_FAILED;
+ }
+ while (field_number > 0 && (item = json_nextinlist(&list)))
+ field_number--;
+ s = item;
+ lookup_value = s;
+ while (*s) s++;
+ while (--s >= lookup_value && isspace(*s)) *s = '\0';
+ }
+ else
+ {
+ lookup_value = NULL;
+ while ((item = json_nextinlist(&list)))
+ {
+ /* Item is: string name-sep value. string is quoted.
+ Dequote the string and compare with the search key. */
+
+ if (!(item = dewrap(item, US"\"\"")))
+ {
+ expand_string_message =
+ string_sprintf("%s wrapping string key for extract json",
+ expand_string_message);
+ goto EXPAND_FAILED_CURLY;
+ }
+ if (Ustrcmp(item, sub[0]) == 0) /*XXX should be a UTF8-compare */
+ {
+ s = item + Ustrlen(item) + 1;
+ while (isspace(*s)) s++;
+ if (*s != ':')
+ {
+ expand_string_message = string_sprintf(
+ "missing object value-separator for extract json");
+ goto EXPAND_FAILED_CURLY;
+ }
+ s++;
+ while (isspace(*s)) s++;
+ lookup_value = s;
+ break;
+ }
+ }
+ }
+ }
+ }
/* If no string follows, $value gets substituted; otherwise there can
be yes/no strings, as for lookup or if. */
save_lookup_value, /* value to reset for string2 */
&s, /* input pointer */
&yield, /* output pointer */
- &size, /* output size */
- &ptr, /* output current point */
US"extract", /* condition type */
&resetok))
{
/* Extract the numbered element into $value. If
skipping, just pretend the extraction failed. */
- lookup_value = skipping? NULL : expand_getlistele(field_number, sub[1]);
+ lookup_value = skipping ? NULL : expand_getlistele(field_number, sub[1]);
/* If no string follows, $value gets substituted; otherwise there can
be yes/no strings, as for lookup or if. */
save_lookup_value, /* value to reset for string2 */
&s, /* input pointer */
&yield, /* output pointer */
- &size, /* output size */
- &ptr, /* output current point */
US"listextract", /* condition type */
&resetok))
{
save_lookup_value, /* value to reset for string2 */
&s, /* input pointer */
&yield, /* output pointer */
- &size, /* output size */
- &ptr, /* output current point */
US"certextract", /* condition type */
&resetok))
{
case EITEM_REDUCE:
{
int sep = 0;
- int save_ptr = ptr;
+ int save_ptr = yield->ptr;
uschar outsep[2] = { '\0', '\0' };
const uschar *list, *expr, *temp;
uschar *save_iterate_item = iterate_item;
if (*s++ != '}')
{ /*{*/
expand_string_message = string_sprintf("missing } at end of condition "
- "or expression inside \"%s\"", name);
+ "or expression inside \"%s\"; could be an unquoted } in the content",
+ name);
goto EXPAND_FAILED;
}
processing for real, we perform the iteration. */
if (skipping) continue;
- while ((iterate_item = string_nextinlist(&list, &sep, NULL, 0)) != NULL)
+ while ((iterate_item = string_nextinlist(&list, &sep, NULL, 0)))
{
*outsep = (uschar)sep; /* Separator as a string */
- DEBUG(D_expand) debug_printf("%s: $item = \"%s\"\n", name, iterate_item);
+ DEBUG(D_expand) debug_printf_indent("%s: $item = '%s' $value = '%s'\n",
+ name, iterate_item, lookup_value);
if (item_type == EITEM_FILTER)
{
expand_string_message, name);
goto EXPAND_FAILED;
}
- DEBUG(D_expand) debug_printf("%s: condition is %s\n", name,
+ DEBUG(D_expand) debug_printf_indent("%s: condition is %s\n", name,
condresult? "true":"false");
if (condresult)
temp = iterate_item; /* TRUE => include this 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 (ptr != save_ptr && (temp[0] == *outsep || temp[0] == 0))
- yield = string_catn(yield, &size, &ptr, US" ", 1);
+ if (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,
This is done in chunks by searching for the separator character. */
{
size_t seglen = Ustrcspn(temp, outsep);
- yield = string_catn(yield, &size, &ptr, temp, seglen + 1);
+ yield = string_catn(yield, temp, seglen + 1);
/* If we got to the end of the string we output one character
too many; backup and end the loop. Otherwise arrange to double the
separator. */
- if (temp[seglen] == '\0') { ptr--; break; }
- yield = string_catn(yield, &size, &ptr, outsep, 1);
+ if (temp[seglen] == '\0') { yield->ptr--; break; }
+ yield = string_catn(yield, outsep, 1);
temp += seglen + 1;
}
/* Output a separator after the string: we will remove the redundant
final one at the end. */
- yield = string_catn(yield, &size, &ptr, outsep, 1);
+ yield = string_catn(yield, outsep, 1);
} /* End of iteration over the list loop */
/* REDUCE has generated no output above: output the final value of
if (item_type == EITEM_REDUCE)
{
- yield = string_cat(yield, &size, &ptr, lookup_value);
+ yield = string_cat(yield, lookup_value);
lookup_value = save_lookup_value; /* Restore $value */
}
the redundant final separator. Even though an empty item at the end of a
list does not count, this is tidier. */
- else if (ptr != save_ptr) ptr--;
+ else if (yield->ptr != save_ptr) yield->ptr--;
/* Restore preserved $item */
while ((srcitem = string_nextinlist(&srclist, &sep, NULL, 0)))
{
uschar * dstitem;
- uschar * newlist = NULL;
- uschar * newkeylist = NULL;
+ gstring * newlist = NULL;
+ gstring * newkeylist = NULL;
uschar * srcfield;
- DEBUG(D_expand) debug_printf("%s: $item = \"%s\"\n", name, srcitem);
+ DEBUG(D_expand) debug_printf_indent("%s: $item = \"%s\"\n", name, srcitem);
/* extract field for comparisons */
iterate_item = srcitem;
/* build and run condition string */
expr = string_sprintf("%s{%s}{%s}", cmp, srcfield, dstfield);
- DEBUG(D_expand) debug_printf("%s: cond = \"%s\"\n", name, expr);
+ 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",
newkeylist = string_append_listele(newkeylist, sep, srcfield);
}
- dstlist = newlist;
- dstkeylist = newkeylist;
+ dstlist = newlist->s;
+ dstkeylist = newkeylist->s;
- DEBUG(D_expand) debug_printf("%s: dstlist = \"%s\"\n", name, dstlist);
- DEBUG(D_expand) debug_printf("%s: dstkeylist = \"%s\"\n", name, dstkeylist);
+ DEBUG(D_expand) debug_printf_indent("%s: dstlist = \"%s\"\n", name, dstlist);
+ DEBUG(D_expand) debug_printf_indent("%s: dstkeylist = \"%s\"\n", name, dstkeylist);
}
if (dstlist)
- yield = string_cat(yield, &size, &ptr, dstlist);
+ yield = string_cat(yield, dstlist);
/* Restore preserved $item */
iterate_item = save_iterate_item;
if(status == OK)
{
if (result == NULL) result = US"";
- yield = string_cat(yield, &size, &ptr, result);
+ yield = string_cat(yield, result);
continue;
}
else
{
expand_string_message = result == NULL ? US"(no message)" : result;
- if(status == FAIL_FORCED) expand_string_forcedfail = TRUE;
+ 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);
save_lookup_value, /* value to reset for string2 */
&s, /* input pointer */
&yield, /* output pointer */
- &size, /* output size */
- &ptr, /* output current point */
US"env", /* condition type */
&resetok))
{
int c;
uschar *arg = NULL;
uschar *sub;
+#ifdef SUPPORT_TLS
var_entry *vp = NULL;
+#endif
/* Owing to an historical mis-design, an underscore may be part of the
operator name, or it may introduce arguments. We therefore first scan the
{
uschar *t;
unsigned long int n = Ustrtoul(sub, &t, 10);
- uschar * s = NULL;
- int sz = 0, i = 0;
+ gstring * g = NULL;
if (*t != 0)
{
goto EXPAND_FAILED;
}
for ( ; n; n >>= 5)
- s = string_catn(s, &sz, &i, &base32_chars[n & 0x1f], 1);
+ g = string_catn(g, &base32_chars[n & 0x1f], 1);
- while (i > 0) yield = string_catn(yield, &size, &ptr, &s[--i], 1);
+ if (g) while (g->ptr > 0) yield = string_catn(yield, &g->s[--g->ptr], 1);
continue;
}
n = n * 32 + (t - base32_chars);
}
s = string_sprintf("%ld", n);
- yield = string_cat(yield, &size, &ptr, s);
+ yield = string_cat(yield, s);
continue;
}
goto EXPAND_FAILED;
}
t = string_base62(n);
- yield = string_cat(yield, &size, &ptr, t);
+ yield = string_cat(yield, t);
continue;
}
case EOP_BASE62D:
{
- uschar buf[16];
uschar *tt = sub;
unsigned long int n = 0;
while (*tt != 0)
}
n = n * BASE_62 + (t - base62_chars);
}
- (void)sprintf(CS buf, "%ld", n);
- yield = string_cat(yield, &size, &ptr, buf);
+ yield = string_fmt_append(yield, "%ld", n);
continue;
}
expand_string_message);
goto EXPAND_FAILED;
}
- yield = string_cat(yield, &size, &ptr, expanded);
+ yield = string_cat(yield, expanded);
continue;
}
int count = 0;
uschar *t = sub - 1;
while (*(++t) != 0) { *t = tolower(*t); count++; }
- yield = string_catn(yield, &size, &ptr, sub, count);
+ yield = string_catn(yield, sub, count);
continue;
}
int count = 0;
uschar *t = sub - 1;
while (*(++t) != 0) { *t = toupper(*t); count++; }
- yield = string_catn(yield, &size, &ptr, sub, count);
+ yield = string_catn(yield, sub, count);
continue;
}
if (vp && *(void **)vp->value)
{
uschar * cp = tls_cert_fprt_md5(*(void **)vp->value);
- yield = string_cat(yield, &size, &ptr, cp);
+ yield = string_cat(yield, cp);
}
else
#endif
md5 base;
uschar digest[16];
int j;
- char st[33];
md5_start(&base);
md5_end(&base, sub, Ustrlen(sub), digest);
- for(j = 0; j < 16; j++) sprintf(st+2*j, "%02x", digest[j]);
- yield = string_cat(yield, &size, &ptr, US st);
+ for (j = 0; j < 16; j++)
+ yield = string_fmt_append(yield, "%02x", digest[j]);
}
continue;
if (vp && *(void **)vp->value)
{
uschar * cp = tls_cert_fprt_sha1(*(void **)vp->value);
- yield = string_cat(yield, &size, &ptr, cp);
+ yield = string_cat(yield, cp);
}
else
#endif
hctx h;
uschar digest[20];
int j;
- char st[41];
sha1_start(&h);
sha1_end(&h, sub, Ustrlen(sub), digest);
- for(j = 0; j < 20; j++) sprintf(st+2*j, "%02X", digest[j]);
- yield = string_catn(yield, &size, &ptr, US st, 40);
+ for (j = 0; j < 20; j++)
+ yield = string_fmt_append(yield, "%02X", digest[j]);
}
continue;
if (vp && *(void **)vp->value)
{
uschar * cp = tls_cert_fprt_sha256(*(void **)vp->value);
- yield = string_cat(yield, &size, &ptr, cp);
+ yield = string_cat(yield, cp);
}
else
{
hctx h;
blob b;
- char st[3];
- exim_sha_init(&h, HASH_SHA256);
+ if (!exim_sha_init(&h, HASH_SHA2_256))
+ {
+ expand_string_message = US"unrecognised sha256 variant";
+ goto EXPAND_FAILED;
+ }
exim_sha_update(&h, sub, Ustrlen(sub));
exim_sha_finish(&h, &b);
while (b.len-- > 0)
- {
- sprintf(st, "%02X", *b.data++);
- yield = string_catn(yield, &size, &ptr, US st, 2);
- }
+ yield = string_fmt_append(yield, "%02X", *b.data++);
}
#else
expand_string_message = US"sha256 only supported with TLS";
{
hctx h;
blob b;
- char st[3];
hashmethod m = !arg ? HASH_SHA3_256
: Ustrcmp(arg, "224") == 0 ? HASH_SHA3_224
: Ustrcmp(arg, "256") == 0 ? HASH_SHA3_256
: Ustrcmp(arg, "512") == 0 ? HASH_SHA3_512
: HASH_BADTYPE;
- if (m == HASH_BADTYPE)
+ if (m == HASH_BADTYPE || !exim_sha_init(&h, m))
{
expand_string_message = US"unrecognised sha3 variant";
goto EXPAND_FAILED;
}
- exim_sha_init(&h, m);
exim_sha_update(&h, sub, Ustrlen(sub));
exim_sha_finish(&h, &b);
while (b.len-- > 0)
- {
- sprintf(st, "%02X", *b.data++);
- yield = string_catn(yield, &size, &ptr, US st, 2);
- }
+ yield = string_fmt_append(yield, "%02X", *b.data++);
}
continue;
#else
- expand_string_message = US"sha3 only supported with GnuTLS 3.5.0 +";
+ expand_string_message = US"sha3 only supported with GnuTLS 3.5.0 + or OpenSSL 1.1.1 +";
goto EXPAND_FAILED;
#endif
}
enc = b64encode(sub, out - sub);
- yield = string_cat(yield, &size, &ptr, enc);
+ yield = string_cat(yield, enc);
continue;
}
while (*(++t) != 0)
{
if (*t < 0x21 || 0x7E < *t)
- yield = string_catn(yield, &size, &ptr,
- string_sprintf("\\x%02x", *t), 4);
+ yield = string_fmt_append(yield, "\\x%02x", *t);
else
- yield = string_catn(yield, &size, &ptr, t, 1);
+ yield = string_catn(yield, t, 1);
}
continue;
}
{
int cnt = 0;
int sep = 0;
- uschar * cp;
uschar buffer[256];
while (string_nextinlist(CUSS &sub, &sep, buffer, sizeof(buffer)) != NULL) cnt++;
- cp = string_sprintf("%d", cnt);
- yield = string_cat(yield, &size, &ptr, cp);
+ yield = string_fmt_append(yield, "%d", cnt);
continue;
}
list = ((namedlist_block *)(t->data.ptr))->string;
- while ((item = string_nextinlist(&list, &sep, buffer, sizeof(buffer))) != NULL)
+ while ((item = string_nextinlist(&list, &sep, buffer, sizeof(buffer))))
{
uschar * buf = US" : ";
if (needsep)
- yield = string_catn(yield, &size, &ptr, buf, 3);
+ yield = string_catn(yield, buf, 3);
else
needsep = TRUE;
char * cp;
char tok[3];
tok[0] = sep; tok[1] = ':'; tok[2] = 0;
- while ((cp= strpbrk((const char *)item, tok)))
+ while ((cp= strpbrk(CCS item, tok)))
{
- yield = string_catn(yield, &size, &ptr, item, cp-(char *)item);
+ yield = string_catn(yield, item, cp - CS item);
if (*cp++ == ':') /* colon in a non-colon-sep list item, needs doubling */
{
- yield = string_catn(yield, &size, &ptr, US"::", 2);
- item = (uschar *)cp;
+ yield = string_catn(yield, US"::", 2);
+ item = US cp;
}
else /* sep in item; should already be doubled; emit once */
{
- yield = string_catn(yield, &size, &ptr, (uschar *)tok, 1);
+ yield = string_catn(yield, US tok, 1);
if (*cp == sep) cp++;
- item = (uschar *)cp;
+ item = US cp;
}
}
}
- yield = string_cat(yield, &size, &ptr, item);
+ yield = string_cat(yield, item);
}
continue;
}
/* Convert to masked textual format and add to output. */
- yield = string_catn(yield, &size, &ptr, buffer,
+ yield = string_catn(yield, buffer,
host_nmtoa(count, binary, mask, buffer, '.'));
continue;
}
goto EXPAND_FAILED;
}
- yield = string_catn(yield, &size, &ptr, buffer,
- c == EOP_IPV6NORM
+ yield = string_catn(yield, buffer, c == EOP_IPV6NORM
? ipv6_nmtoa(binary, buffer)
: host_nmtoa(4, binary, -1, buffer, ':')
);
case EOP_LOCAL_PART:
case EOP_DOMAIN:
{
- uschar *error;
+ uschar * error;
int start, end, domain;
- uschar *t = parse_extract_address(sub, &error, &start, &end, &domain,
+ uschar * t = parse_extract_address(sub, &error, &start, &end, &domain,
FALSE);
- if (t != NULL)
- {
+ if (t)
if (c != EOP_DOMAIN)
{
if (c == EOP_LOCAL_PART && domain != 0) end = start + domain - 1;
- yield = string_catn(yield, &size, &ptr, sub+start, end-start);
+ yield = string_catn(yield, sub+start, end-start);
}
else if (domain != 0)
{
domain += start;
- yield = string_catn(yield, &size, &ptr, sub+domain, end-domain);
+ yield = string_catn(yield, sub+domain, end-domain);
}
- }
continue;
}
{
uschar outsep[2] = { ':', '\0' };
uschar *address, *error;
- int save_ptr = ptr;
+ int save_ptr = yield->ptr;
int start, end, domain; /* Not really used */
while (isspace(*sub)) sub++;
- if (*sub == '>') { *outsep = *++sub; ++sub; }
- parse_allow_group = TRUE;
+ if (*sub == '>')
+ if (*outsep = *++sub) ++sub;
+ else
+ {
+ expand_string_message = string_sprintf("output separator "
+ "missing in expanding ${addresses:%s}", --sub);
+ goto EXPAND_FAILED;
+ }
+ f.parse_allow_group = TRUE;
for (;;)
{
if (address != NULL)
{
- if (ptr != save_ptr && address[0] == *outsep)
- yield = string_catn(yield, &size, &ptr, US" ", 1);
+ if (yield->ptr != save_ptr && address[0] == *outsep)
+ yield = string_catn(yield, US" ", 1);
for (;;)
{
size_t seglen = Ustrcspn(address, outsep);
- yield = string_catn(yield, &size, &ptr, address, seglen + 1);
+ yield = string_catn(yield, address, seglen + 1);
/* If we got to the end of the string we output one character
too many. */
- if (address[seglen] == '\0') { ptr--; break; }
- yield = string_catn(yield, &size, &ptr, outsep, 1);
+ if (address[seglen] == '\0') { yield->ptr--; break; }
+ yield = string_catn(yield, outsep, 1);
address += seglen + 1;
}
/* Output a separator after the string: we will remove the
redundant final one at the end. */
- yield = string_catn(yield, &size, &ptr, outsep, 1);
+ yield = string_catn(yield, outsep, 1);
}
if (saveend == '\0') break;
/* If we have generated anything, remove the redundant final
separator. */
- if (ptr != save_ptr) ptr--;
- parse_allow_group = FALSE;
+ if (yield->ptr != save_ptr) yield->ptr--;
+ f.parse_allow_group = FALSE;
continue;
}
if (needs_quote)
{
- yield = string_catn(yield, &size, &ptr, US"\"", 1);
+ yield = string_catn(yield, US"\"", 1);
t = sub - 1;
while (*(++t) != 0)
{
if (*t == '\n')
- yield = string_catn(yield, &size, &ptr, US"\\n", 2);
+ yield = string_catn(yield, US"\\n", 2);
else if (*t == '\r')
- yield = string_catn(yield, &size, &ptr, US"\\r", 2);
+ yield = string_catn(yield, US"\\r", 2);
else
{
if (*t == '\\' || *t == '"')
- yield = string_catn(yield, &size, &ptr, US"\\", 1);
- yield = string_catn(yield, &size, &ptr, t, 1);
+ yield = string_catn(yield, US"\\", 1);
+ yield = string_catn(yield, t, 1);
}
}
- yield = string_catn(yield, &size, &ptr, US"\"", 1);
+ yield = string_catn(yield, US"\"", 1);
}
- else yield = string_cat(yield, &size, &ptr, sub);
+ else yield = string_cat(yield, sub);
continue;
}
goto EXPAND_FAILED;
}
- yield = string_cat(yield, &size, &ptr, sub);
+ yield = string_cat(yield, sub);
continue;
}
while (*(++t) != 0)
{
if (!isalnum(*t))
- yield = string_catn(yield, &size, &ptr, US"\\", 1);
- yield = string_catn(yield, &size, &ptr, t, 1);
+ yield = string_catn(yield, US"\\", 1);
+ yield = string_catn(yield, t, 1);
}
continue;
}
case EOP_RFC2047:
{
uschar buffer[2048];
- const uschar *string = parse_quote_2047(sub, Ustrlen(sub), headers_charset,
- buffer, sizeof(buffer), FALSE);
- yield = string_cat(yield, &size, &ptr, string);
+ yield = string_cat(yield,
+ parse_quote_2047(sub, Ustrlen(sub), headers_charset,
+ buffer, sizeof(buffer), FALSE));
continue;
}
expand_string_message = error;
goto EXPAND_FAILED;
}
- yield = string_catn(yield, &size, &ptr, decoded, len);
+ yield = string_catn(yield, decoded, len);
continue;
}
GETUTF8INC(c, sub);
if (c > 255) c = '_';
buff[0] = c;
- yield = string_catn(yield, &size, &ptr, buff, 1);
+ yield = string_catn(yield, buff, 1);
}
continue;
}
{
int seq_len = 0, index = 0;
int bytes_left = 0;
- long codepoint = -1;
+ long codepoint = -1;
+ int complete;
uschar seq_buff[4]; /* accumulate utf-8 here */
while (*sub != 0)
{
- int complete = 0;
+ complete = 0;
uschar c = *sub++;
if (bytes_left)
complete = -1; /* error (RFC3629 limit) */
else
{ /* finished; output utf-8 sequence */
- yield = string_catn(yield, &size, &ptr, seq_buff, seq_len);
+ yield = string_catn(yield, seq_buff, seq_len);
index = 0;
}
}
{
if((c & 0x80) == 0) /* 1-byte sequence, US-ASCII, keep it */
{
- yield = string_catn(yield, &size, &ptr, &c, 1);
+ yield = string_catn(yield, &c, 1);
continue;
}
if((c & 0xe0) == 0xc0) /* 2-byte sequence */
if (complete != 0)
{
bytes_left = index = 0;
- yield = string_catn(yield, &size, &ptr, UTF8_REPLACEMENT_CHAR, 1);
+ yield = string_catn(yield, UTF8_REPLACEMENT_CHAR, 1);
}
if ((complete == 1) && ((c & 0x80) == 0))
/* ASCII character follows incomplete sequence */
- yield = string_catn(yield, &size, &ptr, &c, 1);
+ yield = string_catn(yield, &c, 1);
}
+ /* If given a sequence truncated mid-character, we also want to report ?
+ * 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;
}
string_printing(sub), error);
goto EXPAND_FAILED;
}
- yield = string_cat(yield, &size, &ptr, s);
+ yield = string_cat(yield, s);
continue;
}
string_printing(sub), error);
goto EXPAND_FAILED;
}
- yield = string_cat(yield, &size, &ptr, s);
+ yield = string_cat(yield, s);
continue;
}
string_printing(sub), error);
goto EXPAND_FAILED;
}
- yield = string_cat(yield, &size, &ptr, s);
- DEBUG(D_expand) debug_printf("yield: '%s'\n", yield);
+ yield = string_cat(yield, s);
+ DEBUG(D_expand) debug_printf_indent("yield: '%s'\n", yield->s);
continue;
}
string_printing(sub), error);
goto EXPAND_FAILED;
}
- yield = string_cat(yield, &size, &ptr, s);
+ yield = string_cat(yield, s);
continue;
}
#endif /* EXPERIMENTAL_INTERNATIONAL */
case EOP_ESCAPE:
{
const uschar * t = string_printing(sub);
- yield = string_cat(yield, &size, &ptr, t);
+ yield = string_cat(yield, t);
continue;
}
for (s = sub; (c = *s); s++)
yield = c < 127 && c != '\\'
- ? string_catn(yield, &size, &ptr, s, 1)
- : string_catn(yield, &size, &ptr, string_sprintf("\\%03o", c), 4);
+ ? string_catn(yield, s, 1)
+ : string_fmt_append(yield, "\\%03o", c);
continue;
}
uschar *save_sub = sub;
uschar *error = NULL;
int_eximarith_t n = eval_expr(&sub, (c == EOP_EVAL10), &error, FALSE);
- if (error != NULL)
+ if (error)
{
expand_string_message = string_sprintf("error in expression "
- "evaluation: %s (after processing \"%.*s\")", error, sub-save_sub,
- save_sub);
+ "evaluation: %s (after processing \"%.*s\")", error,
+ (int)(sub-save_sub), save_sub);
goto EXPAND_FAILED;
}
- sprintf(CS var_buffer, PR_EXIM_ARITH, n);
- yield = string_cat(yield, &size, &ptr, var_buffer);
+ yield = string_fmt_append(yield, PR_EXIM_ARITH, n);
continue;
}
"Exim time interval in \"%s\" operator", sub, name);
goto EXPAND_FAILED;
}
- sprintf(CS var_buffer, "%d", n);
- yield = string_cat(yield, &size, &ptr, var_buffer);
+ yield = string_fmt_append(yield, "%d", n);
continue;
}
goto EXPAND_FAILED;
}
t = readconf_printtime(n);
- yield = string_cat(yield, &size, &ptr, t);
+ yield = string_cat(yield, t);
continue;
}
#else
uschar * s = b64encode(sub, Ustrlen(sub));
#endif
- yield = string_cat(yield, &size, &ptr, s);
+ yield = string_cat(yield, s);
continue;
}
"well-formed for \"%s\" operator", sub, name);
goto EXPAND_FAILED;
}
- yield = string_cat(yield, &size, &ptr, s);
+ yield = string_cat(yield, s);
continue;
}
/* strlen returns the length of the string */
case EOP_STRLEN:
- {
- uschar buff[24];
- (void)sprintf(CS buff, "%d", Ustrlen(sub));
- yield = string_cat(yield, &size, &ptr, buff);
+ yield = string_fmt_append(yield, "%d", Ustrlen(sub));
continue;
- }
/* length_n or l_n takes just the first n characters or the whole string,
whichever is the shorter;
int len;
uschar *ret;
- if (arg == NULL)
+ if (!arg)
{
expand_string_message = string_sprintf("missing values after %s",
name);
extract_substr(sub, value1, value2, &len);
if (ret == NULL) goto EXPAND_FAILED;
- yield = string_catn(yield, &size, &ptr, ret, len);
+ yield = string_catn(yield, ret, len);
continue;
}
case EOP_STAT:
{
- uschar *s;
uschar smode[12];
uschar **modetable[3];
int i;
mode_t mode;
struct stat st;
- if ((expand_forbid & RDO_EXISTS) != 0)
+ if (expand_forbid & RDO_EXISTS)
{
expand_string_message = US"Use of the stat() expansion is not permitted";
goto EXPAND_FAILED;
}
smode[10] = 0;
- s = string_sprintf("mode=%04lo smode=%s inode=%ld device=%ld links=%ld "
+ yield = string_fmt_append(yield,
+ "mode=%04lo smode=%s inode=%ld device=%ld links=%ld "
"uid=%ld gid=%ld size=" OFF_T_FMT " atime=%ld mtime=%ld ctime=%ld",
(long)(st.st_mode & 077777), smode, (long)st.st_ino,
(long)st.st_dev, (long)st.st_nlink, (long)st.st_uid,
(long)st.st_gid, st.st_size, (long)st.st_atime,
(long)st.st_mtime, (long)st.st_ctime);
- yield = string_cat(yield, &size, &ptr, s);
continue;
}
case EOP_RANDINT:
{
- int_eximarith_t max;
- uschar *s;
+ int_eximarith_t max = expanded_string_integer(sub, TRUE);
- max = expanded_string_integer(sub, TRUE);
- if (expand_string_message != NULL)
+ if (expand_string_message)
goto EXPAND_FAILED;
- s = string_sprintf("%d", vaguely_random_number((int)max));
- yield = string_cat(yield, &size, &ptr, s);
+ yield = string_fmt_append(yield, "%d", vaguely_random_number((int)max));
continue;
}
goto EXPAND_FAILED;
}
invert_address(reversed, sub);
- yield = string_cat(yield, &size, &ptr, reversed);
+ yield = string_cat(yield, reversed);
continue;
}
/* Unknown operator */
default:
- expand_string_message =
- string_sprintf("unknown expansion operator \"%s\"", name);
- goto EXPAND_FAILED;
+ expand_string_message =
+ string_sprintf("unknown expansion operator \"%s\"", name);
+ goto EXPAND_FAILED;
}
}
{
int len;
int newsize = 0;
- if (ptr == 0)
+ gstring * g = NULL;
+
+ if (!yield)
+ g = store_get(sizeof(gstring));
+ else if (yield->ptr == 0)
{
if (resetok) store_reset(yield);
yield = NULL;
- size = 0;
+ g = store_get(sizeof(gstring)); /* alloc _before_ calling find_variable() */
}
if (!(value = find_variable(name, FALSE, skipping, &newsize)))
{
len = Ustrlen(value);
if (!yield && newsize)
{
- yield = value;
- size = newsize;
- ptr = len;
+ yield = g;
+ yield->size = newsize;
+ yield->ptr = len;
+ yield->s = value;
}
else
- yield = string_catn(yield, &size, &ptr, value, len);
+ yield = string_catn(yield, value, len);
continue;
}
if (ket_ends && *s == 0)
{
- expand_string_message = malformed_header?
- US"missing } at end of string - could be header name not terminated by colon"
- :
- US"missing } at end of string";
+ expand_string_message = malformed_header
+ ? US"missing } at end of string - could be header name not terminated by colon"
+ : US"missing } at end of string";
goto EXPAND_FAILED;
}
added to the string. If so, set up an empty string. Add a terminating zero. If
left != NULL, return a pointer to the terminator. */
-if (yield == NULL) yield = store_get(1);
-yield[ptr] = 0;
-if (left != NULL) *left = s;
+if (!yield)
+ yield = string_get(1);
+(void) string_from_gstring(yield);
+if (left) *left = s;
/* Any stacking store that was used above the final string is no longer needed.
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 + ptr + 1);
+if (resetok) store_reset(yield->s + (yield->size = yield->ptr + 1));
else if (resetok_p) *resetok_p = FALSE;
DEBUG(D_expand)
- {
- debug_printf(" expanding: %.*s\n result: %s\n", (int)(s - string), string,
- yield);
- if (skipping) debug_printf(" skipping: result is not used\n");
- }
-return yield;
+ DEBUG(D_noutf8)
+ {
+ debug_printf_indent("|--expanding: %.*s\n", (int)(s - string), string);
+ debug_printf_indent("%sresult: %s\n",
+ skipping ? "|-----" : "\\_____", yield->s);
+ if (skipping)
+ debug_printf_indent("\\___skipping: result is not used\n");
+ }
+ else
+ {
+ 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
+ "result: %s\n",
+ skipping ? UTF8_VERT_RIGHT : UTF8_UP_RIGHT,
+ yield->s);
+ 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;
/* This is the failure exit: easiest to program with a goto. We still need
to update the pointer to the terminator, for cases of nested calls with "fail".
that is a bad idea, because expand_string_message is in dynamic store. */
EXPAND_FAILED:
-if (left != NULL) *left = s;
+if (left) *left = s;
DEBUG(D_expand)
- {
- debug_printf("failed to expand: %s\n", string);
- debug_printf(" error message: %s\n", expand_string_message);
- if (expand_string_forcedfail) debug_printf("failure was forced\n");
- }
-if (resetok_p) *resetok_p = resetok;
+ DEBUG(D_noutf8)
+ {
+ debug_printf_indent("|failed to expand: %s\n", string);
+ debug_printf_indent("%serror message: %s\n",
+ f.expand_string_forcedfail ? "|---" : "\\___", expand_string_message);
+ if (f.expand_string_forcedfail)
+ debug_printf_indent("\\failure was forced\n");
+ }
+ else
+ {
+ debug_printf_indent(UTF8_VERT_RIGHT "failed to expand: %s\n",
+ string);
+ debug_printf_indent("%s" UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ
+ "error message: %s\n",
+ f.expand_string_forcedfail ? UTF8_VERT_RIGHT : UTF8_UP_RIGHT,
+ expand_string_message);
+ if (f.expand_string_forcedfail)
+ debug_printf_indent(UTF8_UP_RIGHT "failure was forced\n");
+ }
+if (resetok_p && !resetok) *resetok_p = FALSE;
+expand_level--;
return NULL;
}
due to a lookup deferring, search_find_defer will be TRUE
*/
-uschar *
-expand_string(uschar *string)
+const uschar *
+expand_cstring(const uschar * string)
{
-search_find_defer = FALSE;
-malformed_header = FALSE;
-return (Ustrpbrk(string, "$\\") == NULL)? string :
- expand_string_internal(string, FALSE, NULL, FALSE, TRUE, NULL);
+if (Ustrpbrk(string, "$\\") != NULL)
+ {
+ int old_pool = store_pool;
+ uschar * s;
+
+ f.search_find_defer = FALSE;
+ malformed_header = FALSE;
+ store_pool = POOL_MAIN;
+ s = expand_string_internal(string, FALSE, NULL, FALSE, TRUE, NULL);
+ store_pool = old_pool;
+ return s;
+ }
+return string;
}
-
-const uschar *
-expand_cstring(const uschar *string)
+uschar *
+expand_string(uschar * string)
{
-search_find_defer = FALSE;
-malformed_header = FALSE;
-return (Ustrpbrk(string, "$\\") == NULL)? string :
- expand_string_internal(string, FALSE, NULL, FALSE, TRUE, NULL);
+return US expand_cstring(CUS string);
}
+
+
/*************************************************
* Expand and copy *
*************************************************/
if (*s == '\0')
{
DEBUG(D_expand)
- debug_printf("treating blank string as number 0\n");
+ debug_printf_indent("treating blank string as number 0\n");
return 0;
}
}
expanded = expand_string(svalue);
if (expanded == NULL)
{
- if (expand_string_forcedfail)
+ if (f.expand_string_forcedfail)
{
DEBUG(dbg_opt) debug_printf("expansion of \"%s\" forced failure\n", oname);
*rvalue = bvalue;
{
return ( ( Ustrstr(s, "failed to expand") != NULL
|| Ustrstr(s, "expansion of ") != NULL
- )
+ )
&& ( Ustrstr(s, "mysql") != NULL
|| Ustrstr(s, "pgsql") != NULL
|| Ustrstr(s, "redis") != NULL
|| Ustrstr(s, "ldapi:") != NULL
|| Ustrstr(s, "ldapdn:") != NULL
|| Ustrstr(s, "ldapm:") != NULL
- ) )
+ ) )
? US"Temporary internal error" : s;
}
+/* Read given named file into big_buffer. Use for keying material etc.
+The content will have an ascii NUL appended.
+
+Arguments:
+ filename as it says
+
+Return: pointer to buffer, or NULL on error.
+*/
+
+uschar *
+expand_file_big_buffer(const uschar * filename)
+{
+int fd, off = 0, len;
+
+if ((fd = open(CS filename, O_RDONLY)) < 0)
+ {
+ log_write(0, LOG_MAIN | LOG_PANIC, "unable to open file for reading: %s",
+ filename);
+ return NULL;
+ }
+
+do
+ {
+ if ((len = read(fd, big_buffer + off, big_buffer_size - 2 - off)) < 0)
+ {
+ (void) close(fd);
+ log_write(0, LOG_MAIN|LOG_PANIC, "unable to read file: %s", filename);
+ return NULL;
+ }
+ off += len;
+ }
+while (len > 0);
+
+(void) close(fd);
+big_buffer[off] = '\0';
+return big_buffer;
+}
+
+
+
+/*************************************************
+* Error-checking for testsuite *
+*************************************************/
+typedef struct {
+ uschar * region_start;
+ uschar * region_end;
+ const uschar *var_name;
+ const uschar *var_data;
+} err_ctx;
+
+static void
+assert_variable_notin(uschar * var_name, uschar * var_data, void * ctx)
+{
+err_ctx * e = ctx;
+if (var_data >= e->region_start && var_data < e->region_end)
+ {
+ e->var_name = CUS var_name;
+ e->var_data = CUS var_data;
+ }
+}
+
+void
+assert_no_variables(void * ptr, int len, const char * filename, int linenumber)
+{
+err_ctx e = { .region_start = ptr, .region_end = US ptr + len,
+ .var_name = NULL, .var_data = NULL };
+int i;
+var_entry * v;
+
+/* check acl_ variables */
+tree_walk(acl_var_c, assert_variable_notin, &e);
+tree_walk(acl_var_m, assert_variable_notin, &e);
+
+/* check auth<n> variables */
+for (i = 0; i < AUTH_VARS; i++) if (auth_vars[i])
+ assert_variable_notin(US"auth<n>", auth_vars[i], &e);
+
+/* check regex<n> variables */
+for (i = 0; i < REGEX_VARS; i++) if (regex_vars[i])
+ assert_variable_notin(US"regex<n>", regex_vars[i], &e);
+
+/* check known-name variables */
+for (v = var_table; v < var_table + var_table_size; v++)
+ if (v->type == vtype_stringptr)
+ assert_variable_notin(US v->name, *(USS v->value), &e);
+
+/* check dns and address trees */
+tree_walk(tree_dns_fails, assert_variable_notin, &e);
+tree_walk(tree_duplicates, assert_variable_notin, &e);
+tree_walk(tree_nonrecipients, assert_variable_notin, &e);
+tree_walk(tree_unusable, assert_variable_notin, &e);
+
+if (e.var_name)
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE,
+ "live variable '%s' destroyed by reset_store at %s:%d\n- value '%.64s'",
+ e.var_name, filename, linenumber, e.var_data);
+}
+
/*************************************************
}
else
{
- if (search_find_defer) printf("search_find deferred\n");
+ if (f.search_find_defer) printf("search_find deferred\n");
printf("Failed: %s\n", expand_string_message);
- if (expand_string_forcedfail) printf("Forced failure\n");
+ if (f.expand_string_forcedfail) printf("Forced failure\n");
printf("\n");
}
}
git://git.exim.org / users / jgh / exim.git / blobdiff