* 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
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_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 },
{ "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 },
{ "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 },
{ "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
/* 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);
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 */
- {
- if (name == NULL || (len <= h->slen && strncmpic(name, h->text, len) == 0))
+ for (h = header_list; size < header_insert_maxlen && 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))
{
int ilen;
uschar *t;
that contains an address list, except when asked for raw headers. Only
need to do this once. */
- if (!want_raw && name != NULL && comma == 0 &&
+ if (!want_raw && name && comma == 0 &&
Ustrchr("BCFRST", h->type) != NULL)
comma = 1;
}
}
}
- }
- }
/* 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.
/* That's all we do for raw header expansion. */
if (want_raw)
- {
*ptr = 0;
- }
/* Otherwise, remove a final newline and a redundant added comma. Then we do
RFC 2047 decoding, translating the charset if requested. The rfc2047_decode2()
+/* Append an "iprev" element to an Autherntication-Results: header
+if we have attempted to get the calling host's name.
+*/
+
+static gstring *
+authres_iprev(gstring * g)
+{
+if (sender_host_name)
+ return string_append(g, 3, US";\n\tiprev=pass (", sender_host_name, US")");
+if (host_lookup_deferred)
+ return string_catn(g, US";\n\tiprev=temperror", 19);
+if (host_lookup_failed)
+ return string_catn(g, US";\n\tiprev=fail", 13);
+return g;
+}
+
+
+
/*************************************************
* Return list of recipients *
*************************************************/
static uschar *
fn_recipients(void)
{
-if (!enable_dollar_recipients) return NULL; else
+gstring * g = NULL;
+int i;
+
+if (!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;
+ /*XXX variant of list_appendele? */
+ if (i != 0) g = string_catn(g, US", ", 2);
+ g = string_cat(g, recipients_list[i].address);
}
+return string_from_gstring(g);
}
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));
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);
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;
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
uschar *save_iterate_item = iterate_item;
int (*compare)(const uschar *, const uschar *);
- DEBUG(D_expand) debug_printf_indent("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;
}
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 */
if (type[0] == 'i')
{
if (yes && !skipping)
- *yieldptr = string_catn(*yieldptr, sizeptr, ptrptr, US"true", 4);
+ *yieldptr = string_catn(*yieldptr, US"true", 4);
}
else
{
if (yes && lookup_value && !skipping)
- *yieldptr = string_cat(*yieldptr, sizeptr, ptrptr, lookup_value);
+ *yieldptr = string_cat(*yieldptr, lookup_value);
lookup_value = save_lookup;
}
s++;
/* 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 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
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_indent("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;
}
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];
expand_level++;
DEBUG(D_expand)
- debug_printf_indent("/%s: %s\n", skipping ? " scanning" : "considering", string);
+ debug_printf_indent(UTF8_DOWN_RIGHT "%s: %s\n",
+ skipping
+ ? UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ "scanning"
+ : "considering",
+ string);
expand_string_forcedfail = FALSE;
expand_string_message = US"";
{
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;
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 */
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;
}
DEBUG(D_expand)
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:
}
}
+ 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_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
DEBUG(D_expand)
{
- debug_printf_indent("|__condition: %.*s\n", (int)(next_s - s), s);
- debug_printf_indent("|_____result: %s\n", cond ? "true" : "false");
+ 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))
{
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, &size, &ptr, encoded);
+ yield = string_cat(yield, encoded);
}
continue;
}
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
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;
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;
prvscheck_result = US"1";
DEBUG(D_expand) debug_printf_indent("prvscheck: success, $pvrs_result set to 1\n");
}
- else
+ else
{
prvscheck_result = NULL;
DEBUG(D_expand) debug_printf_indent("prvscheck: signature expired, $pvrs_result unset\n");
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
/* 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;
+ int save_ptr = yield->ptr;
FILE *f;
- struct sockaddr_un sockun; /* don't call this "sun" ! */
uschar *arg;
uschar *sub_arg[4];
BOOL do_shutdown = TRUE;
+ blob reqstr;
if (expand_forbid & RDO_READSOCK)
{
case 3: goto EXPAND_FAILED;
}
+ /* Grab the request string, if any */
+
+ reqstr.data = sub_arg[1];
+ reqstr.len = Ustrlen(sub_arg[1]);
+
/* Sort out timeout, if given. The second arg is a list with the first element
being a time value. Any more are options of form "name=value". Currently the
only option recognised is "shutdown". */
if (Ustrncmp(sub_arg[0], "inet:", 5) == 0)
{
int port;
- uschar *server_name = sub_arg[0] + 5;
- uschar *port_name = Ustrrchr(server_name, ':');
+ uschar * server_name = sub_arg[0] + 5;
+ uschar * 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);
}
fd = ip_connectedsocket(SOCK_STREAM, server_name, port, port,
- timeout, NULL, &expand_string_message);
+ timeout, NULL, &expand_string_message, &reqstr);
callout_address = NULL;
if (fd < 0)
goto SOCK_FAIL;
+ 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",
/* Allow sequencing of test actions */
if (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_indent("writing \"%s\" to socket\n",
- sub_arg[1]);
- if (write(fd, sub_arg[1], len) != len)
+ reqstr.data);
+ if (write(fd, reqstr.data, reqstr.len) != reqstr.len)
{
expand_string_message = string_sprintf("request write to socket "
"failed: %s", strerror(errno));
f = fdopen(fd, "rb");
sigalrm_seen = FALSE;
alarm(timeout);
- yield = cat_file(f, yield, &size, &ptr, sub_arg[3]);
+ yield = cat_file(f, yield, sub_arg[3]);
alarm(0);
(void)fclose(f);
if (sigalrm_seen)
{
- ptr = save_ptr;
+ yield->ptr = save_ptr;
expand_string_message = US "socket read timed out";
goto SOCK_FAIL;
}
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";
const uschar **argv;
pid_t pid;
int fd_in, fd_out;
- int lsize = 0, lptr = 0;
if ((expand_forbid & RDO_RUN) != 0)
{
f = fdopen(fd_out, "rb");
sigalrm_seen = FALSE;
alarm(60);
- lookup_value = cat_file(f, NULL, &lsize, &lptr, NULL);
+ lookup_value = string_from_gstring(cat_file(f, NULL, NULL));
alarm(0);
(void)fclose(f);
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;
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))
{
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;
}
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_indent("%s: $item = \"%s\"\n", name, srcitem);
newkeylist = string_append_listele(newkeylist, sep, srcfield);
}
- dstlist = newlist;
- dstkeylist = newkeylist;
+ dstlist = newlist->s;
+ dstkeylist = newkeylist->s;
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
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))
{
{
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;
}
n = n * BASE_62 + (t - base62_chars);
}
(void)sprintf(CS buf, "%ld", n);
- yield = string_cat(yield, &size, &ptr, buf);
+ yield = string_cat(yield, buf);
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_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);
+ yield = string_cat(yield, US st);
}
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
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);
+ yield = string_catn(yield, US st, 40);
}
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
{
blob b;
char st[3];
- if (!exim_sha_init(&h, HASH_SHA256))
+ if (!exim_sha_init(&h, HASH_SHA2_256))
{
expand_string_message = US"unrecognised sha256 variant";
goto EXPAND_FAILED;
while (b.len-- > 0)
{
sprintf(st, "%02X", *b.data++);
- yield = string_catn(yield, &size, &ptr, US st, 2);
+ yield = string_catn(yield, US st, 2);
}
}
#else
while (b.len-- > 0)
{
sprintf(st, "%02X", *b.data++);
- yield = string_catn(yield, &size, &ptr, US st, 2);
+ yield = string_catn(yield, US st, 2);
}
}
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_catn(yield, string_sprintf("\\x%02x", *t), 4);
else
- yield = string_catn(yield, &size, &ptr, t, 1);
+ yield = string_catn(yield, t, 1);
}
continue;
}
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_cat(yield, cp);
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, ':')
);
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; }
+ if (*sub == '>')
+ if (*outsep = *++sub) ++sub;
+ else
+ {
+ expand_string_message = string_sprintf("output separator "
+ "missing in expanding ${addresses:%s}", --sub);
+ goto EXPAND_FAILED;
+ }
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--;
+ if (yield->ptr != save_ptr) yield->ptr--;
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;
}
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, string);
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;
}
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);
}
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_indent("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_catn(yield, string_sprintf("\\%03o", c), 4);
continue;
}
if (error != NULL)
{
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_cat(yield, var_buffer);
continue;
}
goto EXPAND_FAILED;
}
sprintf(CS var_buffer, "%d", n);
- yield = string_cat(yield, &size, &ptr, var_buffer);
+ yield = string_cat(yield, var_buffer);
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;
}
{
uschar buff[24];
(void)sprintf(CS buff, "%d", Ustrlen(sub));
- yield = string_cat(yield, &size, &ptr, buff);
+ yield = string_cat(yield, buff);
continue;
}
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;
}
(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);
+ yield = string_cat(yield, s);
continue;
}
if (expand_string_message != NULL)
goto EXPAND_FAILED;
s = string_sprintf("%d", vaguely_random_number((int)max));
- yield = string_cat(yield, &size, &ptr, s);
+ yield = string_cat(yield, s);
continue;
}
goto EXPAND_FAILED;
}
invert_address(reversed, sub);
- yield = string_cat(yield, &size, &ptr, reversed);
+ yield = string_cat(yield, reversed);
continue;
}
{
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_indent("|__expanding: %.*s\n", (int)(s - string), string);
- debug_printf_indent("%s_____result: %s\n", skipping ? "|" : "\\", yield);
- if (skipping) debug_printf_indent("\\___skipping: result is not used\n");
+ debug_printf_indent(UTF8_VERT_RIGHT UTF8_HORIZ UTF8_HORIZ
+ "expanding: %.*s\n",
+ (int)(s - string), string);
+ debug_printf_indent("%s"
+ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ
+ "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;
+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_indent("|failed to expand: %s\n", string);
- debug_printf_indent("%s___error message: %s\n",
- expand_string_forcedfail ? "|" : "\\", expand_string_message);
- if (expand_string_forcedfail) debug_printf_indent("\\failure was forced\n");
+ 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",
+ expand_string_forcedfail ? UTF8_VERT_RIGHT : UTF8_UP_RIGHT,
+ expand_string_message);
+ if (expand_string_forcedfail)
+ debug_printf_indent(UTF8_UP_RIGHT "failure was forced\n");
}
-if (resetok_p) *resetok_p = resetok;
+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, "$\\") != NULL)
+ {
+ int old_pool = store_pool;
+ uschar * s;
+
+ search_find_defer = FALSE;
+ malformed_header = FALSE;
+ store_pool = POOL_MAIN;
+ s = expand_string_internal(string, FALSE, NULL, FALSE, TRUE, NULL);
+ store_pool = old_pool;
+ return s;
+ }
+return string;
}
-
-const uschar *
-expand_cstring(const uschar *string)
+uschar *
+expand_string(uschar * string)
{
-search_find_defer = FALSE;
-malformed_header = FALSE;
-return (Ustrpbrk(string, "$\\") == NULL)? string :
- expand_string_internal(string, FALSE, NULL, FALSE, TRUE, NULL);
+return US expand_cstring(CUS string);
}
+
+
/*************************************************
* Expand and copy *
*************************************************/
}
+/* 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 {
- const char * filename;
- int linenumber;
uschar * region_start;
uschar * region_end;
const uschar *var_name;
void
assert_no_variables(void * ptr, int len, const char * filename, int linenumber)
{
-err_ctx e = {filename, linenumber, ptr, US ptr + len, NULL };
+err_ctx e = { .region_start = ptr, .region_end = US ptr + len,
+ .var_name = NULL, .var_data = NULL };
int i;
var_entry * 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, e.filename, e.linenumber, e.var_data);
+ e.var_name, filename, linenumber, e.var_data);
}
git://git.exim.org / users / jgh / exim.git / blobdiff