* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) The Exim Maintainers 2020 - 2022 */
+/* Copyright (c) The Exim Maintainers 2020 - 2024 */
/* Copyright (c) University of Cambridge 1995 - 2018 */
/* See the file NOTICE for conditions of use and distribution. */
-/* SPDX-License-Identifier: GPL-2.0-only */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/* Functions for handling string expansion. */
#include "exim.h"
+#ifdef MACRO_PREDEF
+# include "macro_predef.h"
+#endif
+
typedef unsigned esi_flags;
#define ESI_NOFLAGS 0
#define ESI_BRACE_ENDS BIT(0) /* expansion should stop at } */
#define ESI_HONOR_DOLLAR BIT(1) /* $ is meaningfull */
#define ESI_SKIPPING BIT(2) /* value will not be needed */
-
-/* Recursively called function */
-
-static uschar *expand_string_internal(const uschar *, esi_flags, const uschar **, BOOL *, BOOL *);
-static int_eximarith_t expanded_string_integer(const uschar *, BOOL);
+#define ESI_EXISTS_ONLY BIT(3) /* actual value not needed */
#ifdef STAND_ALONE
# ifndef SUPPORT_CRYPTEQ
# define SUPPORT_CRYPTEQ
# endif
-#endif
+#endif /*!STAND_ALONE*/
#ifdef LOOKUP_LDAP
# include "lookups/ldap.h"
US"expand",
US"h",
US"hash",
+ US"headerwrap",
US"hex2b64",
US"hexquote",
US"ipv6denorm",
US"strlen",
US"substr",
US"uc",
- US"utf8clean" };
+ US"utf8clean",
+ US"xtextd",
+ };
enum {
EOP_ADDRESS = nelem(op_table_underscore),
EOP_EXPAND,
EOP_H,
EOP_HASH,
+ EOP_HEADERWRAP,
EOP_HEX2B64,
EOP_HEXQUOTE,
EOP_IPV6DENORM,
EOP_STRLEN,
EOP_SUBSTR,
EOP_UC,
- EOP_UTF8CLEAN };
+ EOP_UTF8CLEAN,
+ EOP_XTEXTD,
+ };
/* Table of condition names, and corresponding switch numbers. The names must
int *length;
} alblock;
-static uschar * fn_recipients(void);
typedef uschar * stringptr_fn_t(void);
+static uschar * fn_recipients(void);
+static uschar * fn_recipients_list(void);
static uschar * fn_queue_size(void);
/* This table must be kept in alphabetical order. */
{ "compile_number", vtype_stringptr, &version_cnumber },
{ "config_dir", vtype_stringptr, &config_main_directory },
{ "config_file", vtype_stringptr, &config_main_filename },
+ { "connection_id", vtype_stringptr, &connection_id },
{ "csa_status", vtype_stringptr, &csa_status },
#ifdef EXPERIMENTAL_DCC
{ "dcc_header", vtype_stringptr, &dcc_header },
{ "qualify_domain", vtype_stringptr, &qualify_domain_sender },
{ "qualify_recipient", vtype_stringptr, &qualify_domain_recipient },
{ "queue_name", vtype_stringptr, &queue_name },
- { "queue_size", vtype_string_func, &fn_queue_size },
+ { "queue_size", vtype_string_func, (void *) &fn_queue_size },
{ "rcpt_count", vtype_int, &rcpt_count },
{ "rcpt_defer_count", vtype_int, &rcpt_defer_count },
{ "rcpt_fail_count", vtype_int, &rcpt_fail_count },
{ "recipient_verify_failure",vtype_stringptr,&recipient_verify_failure },
{ "recipients", vtype_string_func, (void *) &fn_recipients },
{ "recipients_count", vtype_int, &recipients_count },
+ { "recipients_list", vtype_string_func, (void *) &fn_recipients_list },
{ "regex_cachesize", vtype_int, ®ex_cachesize },/* undocumented; devel observability */
#ifdef WITH_CONTENT_SCAN
{ "regex_match_string", vtype_stringptr, ®ex_match_string },
{ "sender_fullhost", vtype_stringptr, &sender_fullhost },
{ "sender_helo_dnssec", vtype_bool, &sender_helo_dnssec },
{ "sender_helo_name", vtype_stringptr, &sender_helo_name },
+ { "sender_helo_verified",vtype_string_func, (void *) &sender_helo_verified_boolstr },
{ "sender_host_address", vtype_stringptr, &sender_host_address },
{ "sender_host_authenticated",vtype_stringptr, &sender_host_authenticated },
{ "sender_host_dnssec", vtype_bool, &sender_host_dnssec },
{ "warnmsg_recipients", vtype_stringptr, &warnmsg_recipients }
};
-static int var_table_size = nelem(var_table);
+#ifdef MACRO_PREDEF
+
+/* dummies */
+uschar * fn_arc_domains(void) {return NULL;}
+uschar * fn_hdrs_added(void) {return NULL;}
+uschar * fn_queue_size(void) {return NULL;}
+uschar * fn_recipients(void) {return NULL;}
+uschar * fn_recipients_list(void) {return NULL;}
+uschar * sender_helo_verified_boolstr(void) {return NULL;}
+uschar * smtp_cmd_hist(void) {return NULL;}
+
+
+
+static void
+expansion_items(void)
+{
+uschar buf[64];
+for (int i = 0; i < nelem(item_table); i++)
+ {
+ spf(buf, sizeof(buf), CUS"_EXP_ITEM_%T", item_table[i]);
+ builtin_macro_create(buf);
+ }
+}
+static void
+expansion_operators(void)
+{
+uschar buf[64];
+for (int i = 0; i < nelem(op_table_underscore); i++)
+ {
+ spf(buf, sizeof(buf), CUS"_EXP_OP_%T", op_table_underscore[i]);
+ builtin_macro_create(buf);
+ }
+for (int i = 0; i < nelem(op_table_main); i++)
+ {
+ spf(buf, sizeof(buf), CUS"_EXP_OP_%T", op_table_main[i]);
+ builtin_macro_create(buf);
+ }
+}
+static void
+expansion_conditions(void)
+{
+uschar buf[64];
+for (int i = 0; i < nelem(cond_table); i++)
+ {
+ spf(buf, sizeof(buf), CUS"_EXP_COND_%T", cond_table[i]);
+ builtin_macro_create(buf);
+ }
+}
+static void
+expansion_variables(void)
+{
+uschar buf[64];
+for (int i = 0; i < nelem(var_table); i++)
+ {
+ spf(buf, sizeof(buf), CUS"_EXP_VAR_%T", var_table[i].name);
+ builtin_macro_create(buf);
+ }
+}
+
+void
+expansions(void)
+{
+expansion_items();
+expansion_operators();
+expansion_conditions();
+expansion_variables();
+}
+
+#else /*!MACRO_PREDEF*/
+
static uschar var_buffer[256];
static BOOL malformed_header;
#define FH_WANT_RAW BIT(1)
#define FH_WANT_LIST BIT(2)
+/* Recursively called function */
+static uschar *expand_string_internal(const uschar *, esi_flags, const uschar **, BOOL *, BOOL *);
+static int_eximarith_t expanded_string_integer(const uschar *, BOOL);
+
/*************************************************
* Tables for UTF-8 support *
*/
BOOL
-expand_check_condition(uschar *condition, uschar *m1, uschar *m2)
+expand_check_condition(const uschar * condition,
+ const uschar * m1, const uschar * m2)
{
-uschar * ss = expand_string(condition);
+const uschar * ss = expand_cstring(condition);
if (!ss)
{
if (!f.expand_string_forcedfail && !f.search_find_defer)
while (*s && *s != '=' && !isspace(*s)) s++;
dkeylength = s - dkey;
- if (Uskip_whitespace(&s) == '=') while (isspace(*++s));
+ if (Uskip_whitespace(&s) == '=')
+ while (isspace(*++s)) ;
data = string_dequote(&s);
if (length == dkeylength && strncmpic(key, dkey, length) == 0)
find_var_ent(uschar * name)
{
int first = 0;
-int last = var_table_size;
+int last = nelem(var_table);
while (last > first)
{
*/
static uschar *
-find_header(uschar *name, int *newsize, unsigned flags, const uschar *charset)
+find_header(uschar * name, int * newsize, unsigned flags, const uschar * charset)
{
BOOL found = !name;
int len = name ? Ustrlen(name) : 0;
BOOL comma = FALSE;
gstring * g = NULL;
+uschar * rawhdr;
for (header_line * h = header_list; h; h = h->next)
if (h->type != htype_old && h->text) /* NULL => Received: placeholder */
/* That's all we do for raw header expansion. */
*newsize = g->size;
+rawhdr = string_from_gstring(g);
if (flags & FH_WANT_RAW)
- return string_from_gstring(g);
+ return rawhdr;
/* Otherwise do RFC 2047 decoding, translating the charset if requested.
The rfc2047_decode2() function can return an error with decoded data if the
else
{
- uschar * error, * decoded = rfc2047_decode2(string_from_gstring(g),
+ uschar * error, * decoded = rfc2047_decode2(rawhdr,
check_rfc2047_length, charset, '?', NULL, newsize, &error);
if (error)
DEBUG(D_any) debug_printf("*** error in RFC 2047 decoding: %s\n"
- " input was: %s\n", error, g->s);
- return decoded ? decoded : string_from_gstring(g);
+ " input was: %s\n", error, rawhdr);
+ return decoded ? decoded : rawhdr;
}
}
*************************************************/
/* A recipients list is available only during system message filtering,
during ACL processing after DATA, and while expanding pipe commands
-generated from a system filter, but not elsewhere. */
+generated from a system filter, but not elsewhere. Note that this does
+not check for commas in the elements, and uses comma-space as seperator -
+so cannot be used as an exim list as-is. */
static uschar *
fn_recipients(void)
{
-uschar * s;
gstring * g = NULL;
if (!f.enable_dollar_recipients) return NULL;
for (int i = 0; i < recipients_count; i++)
{
- s = recipients_list[i].address;
+ const uschar * s = recipients_list[i].address;
g = string_append2_listele_n(g, US", ", s, Ustrlen(s));
}
-return g ? g->s : NULL;
+gstring_release_unused(g);
+return string_from_gstring(g);
+}
+
+/* Similar, but as a properly-quoted exim list */
+
+
+static uschar *
+fn_recipients_list(void)
+{
+gstring * g = NULL;
+
+if (!f.enable_dollar_recipients) return NULL;
+
+for (int i = 0; i < recipients_count; i++)
+ g = string_append_listele(g, ':', recipients_list[i].address);
+gstring_release_unused(g);
+return string_from_gstring(g);
}
Arguments:
name the name of the variable being sought
- exists_only TRUE if this is a def: test; passed on to find_header()
- skipping TRUE => skip any processing evaluation; this is not the same as
+ flags
+ exists_only TRUE if this is a def: test; passed on to find_header()
+ skipping TRUE => skip any processing evaluation; this is not the same as
exists_only because def: may test for values that are first
evaluated here
newsize pointer to an int which is initially zero; if the answer is in
*/
static const uschar *
-find_variable(uschar *name, BOOL exists_only, BOOL skipping, int *newsize)
+find_variable(uschar * name, esi_flags flags, int * newsize)
{
var_entry * vp;
uschar *s, *domain;
/* Found an existing variable. If in skipping state, the value isn't needed,
and we want to avoid processing (such as looking up the host name). */
-if (skipping)
+if (flags & ESI_SKIPPING)
return US"";
val = vp->value;
return domain ? domain + 1 : US"";
case vtype_msgheaders:
- return find_header(NULL, newsize, exists_only ? FH_EXISTS_ONLY : 0, NULL);
+ return find_header(NULL, newsize,
+ flags & ESI_EXISTS_ONLY ? FH_EXISTS_ONLY : 0, NULL);
case vtype_msgheaders_raw:
return find_header(NULL, newsize,
- exists_only ? FH_EXISTS_ONLY|FH_WANT_RAW : FH_WANT_RAW, NULL);
+ flags & ESI_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 */
if (!*ss && deliver_datafile >= 0) /* Read body when needed */
{
uschar * body;
- off_t start_offset = SPOOL_DATA_START_OFFSET;
+ off_t start_offset_o = spool_data_start_offset(message_id);
+ off_t start_offset = start_offset_o;
int len = message_body_visible;
if (len > message_size) len = message_size;
if (fstat(deliver_datafile, &statbuf) == 0)
{
start_offset = statbuf.st_size - len;
- if (start_offset < SPOOL_DATA_START_OFFSET)
- start_offset = SPOOL_DATA_START_OFFSET;
+ if (start_offset < start_offset_o)
+ start_offset = start_offset_o;
}
}
if (lseek(deliver_datafile, start_offset, SEEK_SET) < 0)
case vtype_reply: /* Get reply address */
s = find_header(US"reply-to:", newsize,
- exists_only ? FH_EXISTS_ONLY|FH_WANT_RAW : FH_WANT_RAW,
- headers_charset);
+ flags & ESI_EXISTS_ONLY ? FH_EXISTS_ONLY|FH_WANT_RAW : FH_WANT_RAW,
+ headers_charset);
if (s) Uskip_whitespace(&s);
if (!s || !*s)
{
*newsize = 0; /* For the *s==0 case */
s = find_header(US"from:", newsize,
- exists_only ? FH_EXISTS_ONLY|FH_WANT_RAW : FH_WANT_RAW,
- headers_charset);
+ flags & ESI_EXISTS_ONLY ? FH_EXISTS_ONLY|FH_WANT_RAW : FH_WANT_RAW,
+ headers_charset);
}
if (s)
{
case vtype_string_func:
{
stringptr_fn_t * fn = (stringptr_fn_t *) val;
- uschar* s = fn();
+ uschar * s = fn();
return s ? s : US"";
}
json_nextinlist(const uschar ** list)
{
unsigned array_depth = 0, object_depth = 0;
+BOOL quoted = FALSE;
const uschar * s = *list, * item;
skip_whitespace(&s);
for (item = s;
- *s && (*s != ',' || array_depth != 0 || object_depth != 0);
+ *s && (*s != ',' || array_depth != 0 || object_depth != 0 || quoted);
s++)
- switch (*s)
+ if (!quoted) switch (*s)
{
case '[': array_depth++; break;
case ']': array_depth--; break;
case '{': object_depth++; break;
case '}': object_depth--; break;
+ case '"': quoted = TRUE;
+ }
+ else switch(*s)
+ {
+ case '\\': s++; break; /* backslash protects one char */
+ case '"': quoted = FALSE; break;
}
*list = *s ? s+1 : s;
if (item == s) return NULL;
"but found \"%.16s\"", s);
return -1;
}
+DEBUG(D_expand) debug_printf_indent("cond: %s\n", name);
if (opname)
*opname = string_copy(name);
static const uschar *
eval_condition(const uschar * s, BOOL * resetok, BOOL * yield)
{
-BOOL testfor = TRUE;
-BOOL tempcond, combined_cond;
+BOOL testfor = TRUE, tempcond, combined_cond;
BOOL * subcondptr;
-BOOL sub2_honour_dollar = TRUE;
-BOOL is_forany, is_json, is_jsons;
+BOOL sub2_honour_dollar = TRUE, is_forany, is_json, is_jsons;
int rc, cond_type;
int_eximarith_t num[2];
struct stat statbuf;
uschar * opname;
uschar name[256];
-const uschar * sub[10];
+const uschar * sub[10], * next;
unsigned sub_textonly = 0;
+expand_level++;
for (;;)
if (Uskip_whitespace(&s) == '!') { testfor = !testfor; s++; } else break;
if (*s != ':')
{
expand_string_message = US"\":\" expected after \"def\"";
- return NULL;
+ goto failout;
}
s = read_name(name, sizeof(name), s+1, US"_");
else
{
- if (!(t = find_variable(name, TRUE, yield == NULL, NULL)))
+ if (!(t = find_variable(name,
+ yield ? ESI_EXISTS_ONLY : ESI_EXISTS_ONLY | ESI_SKIPPING, NULL)))
{
expand_string_message = name[0]
? string_sprintf("unknown variable \"%s\" after \"def:\"", name)
: US"variable name omitted after \"def:\"";
check_variable_error_message(name);
- return NULL;
+ goto failout;
}
if (yield) *yield = (t[0] != 0) == testfor;
}
- return s;
+ next = s; goto out;
}
case ECOND_FIRST_DELIVERY:
if (yield) *yield = f.deliver_firsttime == testfor;
- return s;
+ next = s; goto out;
/* queue_running tests for any process started by a queue runner */
case ECOND_QUEUE_RUNNING:
if (yield) *yield = (queue_run_pid != (pid_t)0) == testfor;
- return s;
+ next = s; goto out;
/* exists: tests for file existence
sub[0] = expand_string_internal(s+1,
ESI_BRACE_ENDS | ESI_HONOR_DOLLAR | (yield ? ESI_NOFLAGS : ESI_SKIPPING),
&s, resetok, &textonly);
- if (!sub[0]) return NULL;
+ if (!sub[0]) goto failout;
if (textonly) sub_textonly |= BIT(0);
}
/* {-for-text-editors */
if (*s++ != '}') goto COND_FAILED_CURLY_END;
- if (!yield) return s; /* No need to run the test if skipping */
+ if (!yield) { next = s; goto out; } /* No need to run the test if skipping */
switch(cond_type)
{
if ((expand_forbid & RDO_EXISTS) != 0)
{
expand_string_message = US"File existence tests are not permitted";
- return NULL;
+ goto failout;
}
*yield = (Ustat(sub[0], &statbuf) == 0) == testfor;
break;
case ECOND_ISIP:
case ECOND_ISIP4:
case ECOND_ISIP6:
- rc = string_is_ip_address(sub[0], NULL);
- *yield = ((cond_type == ECOND_ISIP)? (rc != 0) :
- (cond_type == ECOND_ISIP4)? (rc == 4) : (rc == 6)) == testfor;
+ {
+ const uschar *errp;
+ const uschar **errpp;
+ DEBUG(D_expand) errpp = &errp; else errpp = 0;
+ if (0 == (rc = string_is_ip_addressX(sub[0], NULL, errpp)))
+ DEBUG(D_expand) debug_printf("failed: %s\n", errp);
+
+ *yield = ( cond_type == ECOND_ISIP ? rc != 0 :
+ cond_type == ECOND_ISIP4 ? rc == 4 : rc == 6) == testfor;
+ }
+
break;
/* Various authentication tests - all optionally compiled */
#if defined(SUPPORT_PAM) || defined(RADIUS_CONFIG_FILE) || \
defined(LOOKUP_LDAP) || defined(CYRUS_PWCHECK_SOCKET)
END_AUTH:
- if (rc == ERROR || rc == DEFER) return NULL;
+ if (rc == ERROR || rc == DEFER) goto failout;
*yield = (rc == OK) == testfor;
#endif
}
- return s;
+ next = s; goto out;
/* call ACL (in a conditional context). Accept true, deny false.
case 1: expand_string_message = US"too few arguments or bracketing "
"error for acl";
case 2:
- case 3: return NULL;
+ case 3: goto failout;
}
if (yield)
default:
expand_string_message = string_sprintf("%s from acl \"%s\"",
rc_names[rc], sub[0]);
- return NULL;
+ goto failout;
}
}
- return s;
+ next = s; goto out;
}
case 1: expand_string_message = US"too few arguments or bracketing "
"error for saslauthd";
case 2:
- case 3: return NULL;
+ case 3: goto failout;
}
if (!sub[2]) sub[3] = NULL; /* realm if no service */
if (yield)
{
int rc = auth_call_saslauthd(sub[0], sub[1], sub[2], sub[3],
&expand_string_message);
- if (rc == ERROR || rc == DEFER) return NULL;
+ if (rc == ERROR || rc == DEFER) goto failout;
*yield = (rc == OK) == testfor;
}
- return s;
+ next = s; goto out;
}
#endif /* CYRUS_SASLAUTHD_SOCKET */
if (i == 0) goto COND_FAILED_CURLY_START;
expand_string_message = string_sprintf("missing 2nd string in {} "
"after \"%s\"", opname);
- return NULL;
+ goto failout;
}
if (!(sub[i] = expand_string_internal(s+1, flags, &s, resetok, &textonly)))
- return NULL;
+ goto failout;
if (textonly) sub_textonly |= BIT(i);
DEBUG(D_expand) if (i == 1 && !sub2_honour_dollar && Ustrchr(sub[1], '$'))
debug_printf_indent("WARNING: the second arg is NOT expanded,"
else
{
num[i] = expanded_string_integer(sub[i], FALSE);
- if (expand_string_message) return NULL;
+ if (expand_string_message) goto failout;
}
}
/* Result not required */
- if (!yield) return s;
+ if (!yield) { next = s; goto out; }
/* Do an appropriate comparison */
sub_textonly & BIT(1) ? MCS_CACHEABLE : MCS_NOFLAGS,
&expand_string_message, pcre_gen_cmp_ctx);
if (!re)
- return NULL;
+ goto failout;
tempcond = regex_match_and_setup(re, sub[0], 0, -1);
break;
{
expand_string_message = string_sprintf("\"%s\" is not an IP address",
sub[0]);
- return NULL;
+ goto failout;
}
else
{
case DEFER:
expand_string_message = string_sprintf("unable to complete match "
"against \"%s\": %s", sub[1], search_error_message);
- return NULL;
+ goto failout;
}
break;
{
expand_string_message = string_sprintf("unknown encryption mechanism "
"in \"%s\"", sub[1]);
- return NULL;
+ goto failout;
}
switch(which)
{
expand_string_message = string_sprintf("crypt error: %s\n",
US strerror(errno));
- return NULL;
+ goto failout;
}
}
break;
} /* Switch for comparison conditions */
*yield = tempcond == testfor;
- return s; /* End of comparison conditions */
+ next = s; goto out; /* End of comparison conditions */
/* and/or: computes logical and/or of several conditions */
{
expand_string_message = string_sprintf("each subcondition "
"inside an \"%s{...}\" condition must be in its own {}", opname);
- return NULL;
+ goto failout;
}
if (!(s = eval_condition(s+1, resetok, subcondptr)))
{
expand_string_message = string_sprintf("%s inside \"%s{...}\" condition",
expand_string_message, opname);
- return NULL;
+ goto failout;
}
Uskip_whitespace(&s);
/* {-for-text-editors */
expand_string_message = string_sprintf("missing } at end of condition "
"inside \"%s\" group", opname);
- return NULL;
+ goto failout;
}
if (yield)
}
if (yield) *yield = (combined_cond == testfor);
- return ++s;
+ next = ++s; goto out;
/* forall/forany: iterates a condition with different values */
if (!(sub[0] = expand_string_internal(s,
ESI_BRACE_ENDS | ESI_HONOR_DOLLAR | (yield ? ESI_NOFLAGS : ESI_SKIPPING),
&s, resetok, NULL)))
- return NULL;
+ goto failout;
/* {-for-text-editors */
if (*s++ != '}') goto COND_FAILED_CURLY_END;
{
expand_string_message = string_sprintf("%s inside \"%s\" condition",
expand_string_message, opname);
- return NULL;
+ goto failout;
}
Uskip_whitespace(&s);
/* {-for-text-editors */
expand_string_message = string_sprintf("missing } at end of condition "
"inside \"%s\"", opname);
- return NULL;
+ goto failout;
}
if (yield) *yield = !testfor;
string_sprintf("%s wrapping string result for extract jsons",
expand_string_message);
iterate_item = save_iterate_item;
- return NULL;
+ goto failout;
}
DEBUG(D_expand) debug_printf_indent("%s: $item = \"%s\"\n", opname, iterate_item);
expand_string_message = string_sprintf("%s inside \"%s\" condition",
expand_string_message, opname);
iterate_item = save_iterate_item;
- return NULL;
+ goto failout;
}
DEBUG(D_expand) debug_printf_indent("%s: condition evaluated to %s\n", opname,
tempcond? "true":"false");
}
iterate_item = save_iterate_item;
- return s;
+ next = s; goto out;
}
ourname);
/*FALLTHROUGH*/
case 2:
- case 3: return NULL;
+ case 3: goto failout;
}
t = sub_arg[0];
Uskip_whitespace(&t);
{
expand_string_message = string_sprintf("unrecognised boolean "
"value \"%s\"", t);
- return NULL;
+ goto failout;
}
DEBUG(D_expand) debug_printf_indent("%s: condition evaluated to %s\n", ourname,
boolvalue? "true":"false");
if (yield) *yield = (boolvalue == testfor);
- return s;
+ next = s; goto out;
}
#ifdef SUPPORT_SRS
case 1: expand_string_message = US"too few arguments or bracketing "
"error for inbound_srs";
case 2:
- case 3: return NULL;
+ case 3: goto failout;
}
/* Match the given local_part against the SRS-encoded pattern */
- re = regex_must_compile(US"^(?i)SRS0=([^=]+)=([A-Z2-7]+)=([^=]*)=(.*)$",
+ re = regex_must_compile(US"^(?i)SRS0=([^=]+)=([A-Z2-7]{2})=([^=]*)=(.*)$",
MCS_CASELESS | MCS_CACHEABLE, FALSE);
md = pcre2_match_data_create(4+1, pcre_gen_ctx);
if (pcre2_match(re, sub[0], PCRE2_ZERO_TERMINATED, 0, PCRE_EOPT,
/* If a zero-length secret was given, we're done. Otherwise carry on
and validate the given SRS local_part againt our secret. */
- if (!*sub[1])
+ if (*sub[1])
{
- boolvalue = TRUE;
- goto srs_result;
- }
+ /* check the timestamp */
+ {
+ struct timeval now;
+ uschar * ss = sub[0] + ovec[4]; /* substring 2, the timestamp */
+ long d;
+ int n;
- /* check the timestamp */
- {
- struct timeval now;
- uschar * ss = sub[0] + ovec[4]; /* substring 2, the timestamp */
- long d;
- int n;
+ gettimeofday(&now, NULL);
+ now.tv_sec /= 86400; /* days since epoch */
- gettimeofday(&now, NULL);
- now.tv_sec /= 86400; /* days since epoch */
+ /* Decode substring 2 from base32 to a number */
- /* Decode substring 2 from base32 to a number */
+ for (d = 0, n = ovec[5]-ovec[4]; n; n--)
+ {
+ uschar * t = Ustrchr(base32_chars, *ss++);
+ d = d * 32 + (t - base32_chars);
+ }
- for (d = 0, n = ovec[5]-ovec[4]; n; n--)
- {
- uschar * t = Ustrchr(base32_chars, *ss++);
- d = d * 32 + (t - base32_chars);
+ if (((now.tv_sec - d) & 0x3ff) > 10) /* days since SRS generated */
+ {
+ DEBUG(D_expand) debug_printf("SRS too old\n");
+ goto srs_result;
+ }
}
- if (((now.tv_sec - d) & 0x3ff) > 10) /* days since SRS generated */
+ /* check length of substring 1, the offered checksum */
+
+ if (ovec[3]-ovec[2] != 4)
{
- DEBUG(D_expand) debug_printf("SRS too old\n");
+ DEBUG(D_expand) debug_printf("SRS checksum wrong size\n");
goto srs_result;
}
- }
-
- /* check length of substring 1, the offered checksum */
-
- if (ovec[3]-ovec[2] != 4)
- {
- DEBUG(D_expand) debug_printf("SRS checksum wrong size\n");
- goto srs_result;
- }
- /* Hash the address with our secret, and compare that computed checksum
- with the one extracted from the arg */
+ /* Hash the address with our secret, and compare that computed checksum
+ with the one extracted from the arg */
- hmac_md5(sub[1], srs_recipient, cksum, sizeof(cksum));
- if (Ustrncmp(cksum, sub[0] + ovec[2], 4) != 0)
- {
- DEBUG(D_expand) debug_printf("SRS checksum mismatch\n");
- goto srs_result;
+ hmac_md5(sub[1], srs_recipient, cksum, sizeof(cksum));
+ if (Ustrncmp(cksum, sub[0] + ovec[2], 4) != 0)
+ {
+ DEBUG(D_expand) debug_printf("SRS checksum mismatch\n");
+ goto srs_result;
+ }
}
boolvalue = TRUE;
srs_result:
/* pcre2_match_data_free(md); gen ctx needs no free */
if (yield) *yield = (boolvalue == testfor);
- return s;
+ next = s; goto out;
}
#endif /*SUPPORT_SRS*/
default:
if (!expand_string_message || !*expand_string_message)
expand_string_message = string_sprintf("unknown condition \"%s\"", opname);
- return NULL;
+ goto failout;
} /* End switch on condition type */
/* Missing braces at start and end of data */
COND_FAILED_CURLY_START:
expand_string_message = string_sprintf("missing { after \"%s\"", opname);
-return NULL;
+goto failout;
COND_FAILED_CURLY_END:
expand_string_message = string_sprintf("missing } at end of \"%s\" condition",
opname);
-return NULL;
+goto failout;
/* A condition requires code that is not compiled */
COND_FAILED_NOT_COMPILED:
expand_string_message = string_sprintf("support for \"%s\" not compiled",
opname);
-return NULL;
+goto failout;
#endif
+
+failout:
+ next = NULL;
+out:
+ expand_level--;
+ return next;
}
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->s);
+ debug_printf_indent("prvs: hash source is '%Y'\n", hash_source);
memset(innerkey, 0x36, 64);
memset(outerkey, 0x5c, 64);
if (*s != ')')
*error = US"expecting closing parenthesis";
else
- while (isspace(*++s));
+ while (isspace(*++s)) ;
else if (*s)
*error = US"expecting operator";
*sptr = s;
/************************************************/
static void
debug_expansion_interim(const uschar * what, const uschar * value, int nchar,
- BOOL skipping)
+ esi_flags flags)
{
-DEBUG(D_noutf8)
- debug_printf_indent("|");
-else
- debug_printf_indent(UTF8_VERT_RIGHT);
+debug_printf_indent("%V", "K");
for (int fill = 11 - Ustrlen(what); fill > 0; fill--)
- DEBUG(D_noutf8)
- debug_printf("-");
- else
- debug_printf(UTF8_HORIZ);
+ debug_printf("%V", "-");
-debug_printf("%s: %.*s\n", what, nchar, value);
+debug_printf("%s: %.*W\n", what, nchar, value);
if (is_tainted(value))
- {
- DEBUG(D_noutf8)
- debug_printf_indent("%s \\__", skipping ? "| " : " ");
- else
- debug_printf_indent("%s",
- skipping
- ? UTF8_VERT " " : " " UTF8_UP_RIGHT UTF8_HORIZ UTF8_HORIZ);
- debug_printf("(tainted)\n");
- }
+ debug_printf_indent("%V %V(tainted)\n",
+ flags & ESI_SKIPPING ? "|" : " ", "\\__");
}
DEBUG(D_expand)
{
- DEBUG(D_noutf8)
- debug_printf_indent("%c%s: %s\n",
- first ? '/' : '|',
- flags & ESI_SKIPPING ? "---scanning" : "considering", s);
- else
- debug_printf_indent("%s%s: %s\n",
- first ? UTF8_DOWN_RIGHT : UTF8_VERT_RIGHT,
- flags & ESI_SKIPPING
- ? UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ "scanning"
- : "considering",
- s);
+ debug_printf_indent("%V%V%s: %W\n",
+ first ? "/" : "K",
+ flags & ESI_SKIPPING ? "---" : "",
+ flags & ESI_SKIPPING ? "scanning" : "considering", s);
first = FALSE;
}
for (s = t; *s ; s++) if (*s == '\\' && s[1] == 'N') break;
DEBUG(D_expand)
- debug_expansion_interim(US"protected", t, (int)(s - t), !!(flags & ESI_SKIPPING));
- yield = string_catn(yield, t, s - t);
+ debug_expansion_interim(US"protected", t, (int)(s - t), flags);
+ if (!(flags & ESI_SKIPPING))
+ yield = string_catn(yield, t, s - t);
if (*s) s += 2;
}
else
{
uschar ch[1];
DEBUG(D_expand)
- DEBUG(D_noutf8)
- debug_printf_indent("|backslashed: '\\%c'\n", s[1]);
- else
- debug_printf_indent(UTF8_VERT_RIGHT "backslashed: '\\%c'\n", s[1]);
+ debug_printf_indent("%Vbackslashed: '\\%c'\n", "K", s[1]);
ch[0] = string_interpret_escape(&s);
+ if (!(flags & ESI_SKIPPING))
+ yield = string_catn(yield, ch, 1);
s++;
- yield = string_catn(yield, ch, 1);
}
continue;
}
for (const uschar * t = s+1;
*t && *t != '$' && *t != '}' && *t != '\\'; t++) i++;
- DEBUG(D_expand) debug_expansion_interim(US"text", s, i, !!(flags & ESI_SKIPPING));
+ DEBUG(D_expand) debug_expansion_interim(US"text", s, i, flags);
- yield = string_catn(yield, s, i);
+ if (!(flags & ESI_SKIPPING))
+ yield = string_catn(yield, s, i);
s += i;
continue;
}
/* If this is the first thing to be expanded, release the pre-allocated
buffer. */
- if (!yield)
- g = store_get(sizeof(gstring), GET_UNTAINTED);
- else if (yield->ptr == 0)
- {
- if (resetok) reset_point = store_reset(reset_point);
- yield = NULL;
- reset_point = store_mark();
- g = store_get(sizeof(gstring), GET_UNTAINTED); /* alloc _before_ calling find_variable() */
- }
+ if (!(flags & ESI_SKIPPING))
+ if (!yield)
+ g = store_get(sizeof(gstring), GET_UNTAINTED);
+ else if (yield->ptr == 0)
+ {
+ if (resetok) reset_point = store_reset(reset_point);
+ yield = NULL;
+ reset_point = store_mark();
+ g = store_get(sizeof(gstring), GET_UNTAINTED); /* alloc _before_ calling find_variable() */
+ }
/* Header */
/* Variable */
- else if (!(value = find_variable(name, FALSE, !!(flags & ESI_SKIPPING), &newsize)))
+ else if (!(value = find_variable(name, flags, &newsize)))
{
expand_string_message =
string_sprintf("unknown variable name \"%s\"", name);
reset in the middle of the buffer will make it inaccessible. */
len = Ustrlen(value);
- if (!yield && newsize != 0)
- {
- yield = g;
- yield->size = newsize;
- yield->ptr = len;
- yield->s = US value; /* known to be in new store i.e. a copy, so deconst safe */
- }
- else
- yield = string_catn(yield, value, len);
+ DEBUG(D_expand) debug_expansion_interim(US"value", value, len, flags);
+ if (!(flags & ESI_SKIPPING))
+ if (!yield && newsize != 0)
+ {
+ yield = g;
+ yield->size = newsize;
+ yield->ptr = len;
+ yield->s = US value; /* known to be in new store i.e. a copy, so deconst safe */
+ }
+ else
+ yield = string_catn(yield, value, len);
continue;
}
- if (isdigit(*s))
+ if (isdigit(*s)) /* A $<n> variable */
{
int n;
s = read_cnumber(&n, s);
if (n >= 0 && n <= expand_nmax)
- yield = string_catn(yield, expand_nstring[n], expand_nlength[n]);
+ {
+ DEBUG(D_expand) debug_expansion_interim(US"value", expand_nstring[n], expand_nlength[n], flags);
+ if (!(flags & ESI_SKIPPING))
+ yield = string_catn(yield, expand_nstring[n], expand_nlength[n]);
+ }
continue;
}
goto EXPAND_FAILED;
}
if (n >= 0 && n <= expand_nmax)
- yield = string_catn(yield, expand_nstring[n], expand_nlength[n]);
+ {
+ DEBUG(D_expand) debug_expansion_interim(US"value", expand_nstring[n], expand_nlength[n], flags);
+ if (!(flags & ESI_SKIPPING))
+ yield = string_catn(yield, expand_nstring[n], expand_nlength[n]);
+ }
continue;
}
skipping, but "break" otherwise so we get debug output for the item
expansion. */
{
- int start = gstring_length(yield);
+ int expansion_start = gstring_length(yield);
switch(item_type)
{
/* Call an ACL from an expansion. We feed data in via $acl_arg1 - $acl_arg9.
switch(read_subs(sub_arg, nelem(sub_arg), 1, &s, flags, TRUE, name, &resetok, NULL))
{
+ case -1: continue; /* If skipping, we don't actually do anything */
case 1: goto EXPAND_FAILED_CURLY;
case 2:
case 3: goto EXPAND_FAILED;
}
- /*XXX no skipping-optimisation? */
yield = string_append(yield, 3,
US"Authentication-Results: ", sub_arg[0], US"; none");
- yield->ptr -= 6;
+ yield->ptr -= 6; /* ignore tha ": none" for now */
yield = authres_local(yield, sub_arg[0]);
yield = authres_iprev(yield);
DEBUG(D_expand)
{
- debug_expansion_interim(US"condition", s, (int)(next_s - s), !!(flags & ESI_SKIPPING));
+ debug_expansion_interim(US"condition", s, (int)(next_s - s), flags);
debug_expansion_interim(US"result",
- cond ? US"true" : US"false", cond ? 4 : 5, !!(flags & ESI_SKIPPING));
+ cond ? US"true" : US"false", cond ? 4 : 5, flags);
}
s = next_s;
case 2:
case 3: goto EXPAND_FAILED;
}
- /*XXX no skipping-optimisation? */
if (!sub_arg[1]) /* One argument */
{
if (iexpire >= inow)
{
prvscheck_result = US"1";
- DEBUG(D_expand) debug_printf_indent("prvscheck: success, $pvrs_result set to 1\n");
+ DEBUG(D_expand) debug_printf_indent("prvscheck: success, $prvscheck_result set to 1\n");
}
else
{
prvscheck_result = NULL;
- DEBUG(D_expand) debug_printf_indent("prvscheck: signature expired, $pvrs_result unset\n");
+ DEBUG(D_expand) debug_printf_indent("prvscheck: signature expired, $prvscheck_result unset\n");
}
}
else
{
prvscheck_result = NULL;
- DEBUG(D_expand) debug_printf_indent("prvscheck: hash failure, $pvrs_result unset\n");
+ DEBUG(D_expand) debug_printf_indent("prvscheck: hash failure, $prvscheck_result unset\n");
}
/* Now expand the final argument. We leave this till now so that
switch(read_subs(sub_arg, 2, 1, &s, flags, TRUE, name, &resetok, NULL))
{
+ case -1: continue; /* If skipping, we don't actually do anything */
case 1: goto EXPAND_FAILED_CURLY;
case 2:
case 3: goto EXPAND_FAILED;
}
- /* If skipping, we don't actually do anything */
-
- if (flags & ESI_SKIPPING) continue;
-
/* Open the file and read it */
if (!(f = Ufopen(sub_arg[0], "rb")))
{
FILE * f;
const uschar * arg, ** argv;
- BOOL late_expand = TRUE;
+ unsigned late_expand = TSUC_EXPAND_ARGS | TSUC_ALLOW_TAINTED_ARGS | TSUC_ALLOW_RECIPIENTS;
- if ((expand_forbid & RDO_RUN) != 0)
+ if (expand_forbid & RDO_RUN)
{
expand_string_message = US"running a command is not permitted";
goto EXPAND_FAILED;
/* Handle options to the "run" */
while (*s == ',')
- {
if (Ustrncmp(++s, "preexpand", 9) == 0)
- { late_expand = FALSE; s += 9; }
+ { late_expand = 0; s += 9; }
else
{
const uschar * t = s;
(int)(t-s), s);
goto EXPAND_FAILED;
}
- }
Uskip_whitespace(&s);
if (*s != '{') /*}*/
s++;
if (late_expand) /* this is the default case */
- { /*{*/
- int n = Ustrcspn(s, "}");
+ {
+ int n;
+ const uschar * t;
+ /* Locate the end of the args */
+ (void) expand_string_internal(s,
+ ESI_BRACE_ENDS | ESI_HONOR_DOLLAR | ESI_SKIPPING, &t, NULL, NULL);
+ n = t - s;
arg = flags & ESI_SKIPPING ? NULL : string_copyn(s, n);
s += n;
}
else
{
+ DEBUG(D_expand)
+ debug_printf_indent("args string for ${run} expand before split\n");
if (!(arg = expand_string_internal(s,
ESI_BRACE_ENDS | ESI_HONOR_DOLLAR | flags, &s, &resetok, NULL)))
goto EXPAND_FAILED;
late_expand, /* expand args if not already done */
0, /* not relevant when... */
NULL, /* no transporting address */
- late_expand, /* allow tainted args, when expand-after-split */
US"${run} expansion", /* for error messages */
&expand_string_message)) /* where to put error message */
goto EXPAND_FAILED;
case 3: goto EXPAND_FAILED;
}
- yield = string_cat(yield, sub[0]);
- o2m = Ustrlen(sub[2]) - 1;
-
- if (o2m >= 0) for (; oldptr < yield->ptr; oldptr++)
+ if ( (yield = string_cat(yield, sub[0]))
+ && (o2m = Ustrlen(sub[2]) - 1) >= 0)
+ for (; oldptr < yield->ptr; oldptr++)
{
- uschar *m = Ustrrchr(sub[1], yield->s[oldptr]);
+ uschar * m = Ustrrchr(sub[1], yield->s[oldptr]);
if (m)
{
int o = m - sub[1];
- yield->s[oldptr] = sub[2][(o < o2m)? o : o2m];
+ yield->s[oldptr] = sub[2][o < o2m ? o : o2m];
}
}
save_expand_strings(save_expand_nstring, save_expand_nlength);
/* Read the field & list arguments */
+ /*XXX Could we use read_subs here (and get better efficiency for skipping)? */
for (int i = 0; i < 2; i++)
{
goto EXPAND_FAILED_CURLY; /*}*/
}
+ DEBUG(D_expand) debug_printf_indent("%s: evaluate input list list\n", name);
if (!(list = expand_string_internal(s,
ESI_BRACE_ENDS | ESI_HONOR_DOLLAR | flags, &s, &resetok, NULL)))
goto EXPAND_FAILED; /*{{*/
expand_string_message = US"missing '{' for second arg of reduce";
goto EXPAND_FAILED_CURLY; /*}*/
}
+ DEBUG(D_expand) debug_printf_indent("reduce: initial result list\n");
t = expand_string_internal(s,
ESI_BRACE_ENDS | ESI_HONOR_DOLLAR | flags, &s, &resetok, NULL);
if (!t) goto EXPAND_FAILED;
condition for real. For EITEM_MAP and EITEM_REDUCE, do the same, using
the normal internal expansion function. */
+ DEBUG(D_expand) debug_printf_indent("%s: find end of conditionn\n", name);
if (item_type != EITEM_FILTER)
temp = expand_string_internal(s,
ESI_BRACE_ENDS | ESI_HONOR_DOLLAR | ESI_SKIPPING, &s, &resetok, NULL);
case 2:
case 3: goto EXPAND_FAILED;
}
+ if (flags & ESI_SKIPPING) continue;
if (sub[1] && *(sub[1]))
{
{
struct timeval now;
unsigned long i;
- gstring * h = NULL;
gettimeofday(&now, NULL);
- for (unsigned long i = (now.tv_sec / 86400) & 0x3ff; i; i >>= 5)
- h = string_catn(h, &base32_chars[i & 0x1f], 1);
- if (h) while (h->ptr > 0)
- g = string_catn(g, &h->s[--h->ptr], 1);
+ i = (now.tv_sec / 86400) & 0x3ff;
+ g = string_catn(g, &base32_chars[i >> 5], 1);
+ g = string_catn(g, &base32_chars[i & 0x1f], 1);
}
g = string_catn(g, US"=", 1);
gstring_release_unused(h);
s = string_from_gstring(h);
}
- g = string_cat(g, s);
+ if (s) g = string_cat(g, s);
}
/* Assume that if the original local_part had quotes
it was for good reason */
if (quoted) yield = string_catn(yield, US"\"", 1);
- yield = string_catn(yield, g->s, g->ptr);
+ yield = gstring_append(yield, g);
if (quoted) yield = string_catn(yield, US"\"", 1);
/* @$original_domain */
} /* EITEM_* switch */
/*NOTREACHED*/
- DEBUG(D_expand)
- if (yield && (start > 0 || *s)) /* only if not the sole expansion of the line */
+ DEBUG(D_expand) /* only if not the sole expansion of the line */
+ if (yield && (expansion_start > 0 || *s))
debug_expansion_interim(US"item-res",
- yield->s + start, yield->ptr - start, !!(flags & ESI_SKIPPING));
+ yield->s + expansion_start, yield->ptr - expansion_start,
+ flags);
continue;
NOT_ITEM: ;
/* Deal specially with operators that might take a certificate variable
as we do not want to do the usual expansion. For most, expand the string.*/
+
switch(c)
{
#ifndef DISABLE_TLS
to the main loop top. */
{
- int start = yield->ptr;
+ unsigned expansion_start = gstring_length(yield);
switch(c)
{
case EOP_BASE32:
{
- uschar *t;
+ uschar * t;
unsigned long int n = Ustrtoul(sub, &t, 10);
gstring * g = NULL;
- if (*t != 0)
+ if (*t)
{
expand_string_message = string_sprintf("argument for base32 "
"operator is \"%s\", which is not a decimal number", sub);
{
uschar *t;
unsigned long int n = Ustrtoul(sub, &t, 10);
- if (*t != 0)
+ if (*t)
{
expand_string_message = string_sprintf("argument for base62 "
"operator is \"%s\", which is not a decimal number", sub);
goto EXPAND_FAILED;
}
- yield = string_cat(yield, string_base62(n));
+ yield = string_cat(yield, string_base62_32(n)); /*XXX only handles 32b input range. Need variants? */
break;
}
{
uschar *tt = sub;
unsigned long int n = 0;
- while (*tt != 0)
+ while (*tt)
{
uschar *t = Ustrchr(base62_chars, *tt++);
if (!t)
case EOP_LC:
{
- int count = 0;
- uschar *t = sub - 1;
- while (*(++t) != 0) { *t = tolower(*t); count++; }
- yield = string_catn(yield, sub, count);
+ uschar * t = sub - 1;
+ while (*++t) *t = tolower(*t);
+ yield = string_catn(yield, sub, t-sub);
break;
}
case EOP_UC:
{
- int count = 0;
- uschar *t = sub - 1;
- while (*(++t) != 0) { *t = toupper(*t); count++; }
- yield = string_catn(yield, sub, count);
+ uschar * t = sub - 1;
+ while (*++t) *t = toupper(*t);
+ yield = string_catn(yield, sub, t-sub);
break;
}
goto EXPAND_FAILED;
#endif
+ /* Line-wrap a string as if it is a header line */
+
+ case EOP_HEADERWRAP:
+ {
+ unsigned col = 80, lim = 998;
+ uschar * s;
+
+ if (arg)
+ {
+ const uschar * list = arg;
+ int sep = '_';
+ if ((s = string_nextinlist(&list, &sep, NULL, 0)))
+ {
+ col = atoi(CS s);
+ if ((s = string_nextinlist(&list, &sep, NULL, 0)))
+ lim = atoi(CS s);
+ }
+ }
+ if ((s = wrap_header(sub, col, lim, US"\t", 8)))
+ yield = string_cat(yield, s);
+ }
+ break;
+
/* Convert hex encoding to base64 encoding */
case EOP_HEX2B64:
}
else
yield = string_cat(yield, sub);
- break;
}
/* quote_lookuptype does lookup-specific quoting */
}
yield = string_cat(yield, sub);
- break;
}
+ break;
- /* rx quote sticks in \ before any non-alphameric character so that
- the insertion works in a regular expression. */
+ /* rx quote sticks in \ before any non-alphameric character so that
+ the insertion works in a regular expression. */
- case EOP_RXQUOTE:
+ case EOP_RXQUOTE:
+ {
+ uschar *t = sub - 1;
+ while (*(++t) != 0)
{
- uschar *t = sub - 1;
- while (*(++t) != 0)
- {
- if (!isalnum(*t))
- yield = string_catn(yield, US"\\", 1);
- yield = string_catn(yield, t, 1);
- }
- break;
+ if (!isalnum(*t))
+ yield = string_catn(yield, US"\\", 1);
+ yield = string_catn(yield, t, 1);
}
+ break;
+ }
- /* RFC 2047 encodes, assuming headers_charset (default ISO 8859-1) as
- prescribed by the RFC, if there are characters that need to be encoded */
+ /* RFC 2047 encodes, assuming headers_charset (default ISO 8859-1) as
+ prescribed by the RFC, if there are characters that need to be encoded */
- case EOP_RFC2047:
- yield = string_cat(yield,
- parse_quote_2047(sub, Ustrlen(sub), headers_charset,
- FALSE));
- break;
+ case EOP_RFC2047:
+ yield = string_cat(yield,
+ parse_quote_2047(sub, Ustrlen(sub), headers_charset,
+ FALSE));
+ break;
- /* RFC 2047 decode */
+ /* RFC 2047 decode */
- case EOP_RFC2047D:
+ case EOP_RFC2047D:
+ {
+ int len;
+ uschar *error;
+ uschar *decoded = rfc2047_decode(sub, check_rfc2047_length,
+ headers_charset, '?', &len, &error);
+ if (error)
{
- int len;
- uschar *error;
- uschar *decoded = rfc2047_decode(sub, check_rfc2047_length,
- headers_charset, '?', &len, &error);
- if (error)
- {
- expand_string_message = error;
- goto EXPAND_FAILED;
- }
- yield = string_catn(yield, decoded, len);
- break;
+ expand_string_message = error;
+ goto EXPAND_FAILED;
}
+ yield = string_catn(yield, decoded, len);
+ break;
+ }
- /* from_utf8 converts UTF-8 to 8859-1, turning non-existent chars into
- underscores */
+ /* from_utf8 converts UTF-8 to 8859-1, turning non-existent chars into
+ underscores */
- case EOP_FROM_UTF8:
+ case EOP_FROM_UTF8:
+ {
+ uschar * buff = store_get(4, sub);
+ while (*sub)
{
- uschar * buff = store_get(4, sub);
- while (*sub)
- {
- int c;
- GETUTF8INC(c, sub);
- if (c > 255) c = '_';
- buff[0] = c;
- yield = string_catn(yield, buff, 1);
- }
- break;
+ int c;
+ GETUTF8INC(c, sub);
+ if (c > 255) c = '_';
+ buff[0] = c;
+ yield = string_catn(yield, buff, 1);
}
+ break;
+ }
- /* replace illegal UTF-8 sequences by replacement character */
+ /* replace illegal UTF-8 sequences by replacement character */
- #define UTF8_REPLACEMENT_CHAR US"?"
+ #define UTF8_REPLACEMENT_CHAR US"?"
- case EOP_UTF8CLEAN:
- {
- int seq_len = 0, index = 0;
- int bytes_left = 0;
- long codepoint = -1;
- int complete;
- uschar seq_buff[4]; /* accumulate utf-8 here */
+ case EOP_UTF8CLEAN:
+ {
+ int seq_len = 0, index = 0, bytes_left = 0, complete;
+ u_long codepoint = (u_long)-1;
+ uschar seq_buff[4]; /* accumulate utf-8 here */
- /* Manually track tainting, as we deal in individual chars below */
+ /* Manually track tainting, as we deal in individual chars below */
- if (!yield->s || !yield->ptr)
- yield->s = store_get(yield->size = Ustrlen(sub), sub);
- else if (is_incompatible(yield->s, sub))
- gstring_rebuffer(yield, sub);
+ if (!yield)
+ yield = string_get_tainted(Ustrlen(sub), sub);
+ else if (!yield->s || !yield->ptr)
+ {
+ yield->s = store_get(yield->size = Ustrlen(sub), sub);
+ gstring_reset(yield);
+ }
+ else if (is_incompatible(yield->s, sub))
+ gstring_rebuffer(yield, sub);
- /* Check the UTF-8, byte-by-byte */
+ /* Check the UTF-8, byte-by-byte */
- while (*sub)
- {
- complete = 0;
- uschar c = *sub++;
+ while (*sub)
+ {
+ complete = 0;
+ uschar c = *sub++;
- if (bytes_left)
- {
- if ((c & 0xc0) != 0x80)
- /* wrong continuation byte; invalidate all bytes */
- complete = 1; /* error */
- else
- {
- codepoint = (codepoint << 6) | (c & 0x3f);
- seq_buff[index++] = c;
- if (--bytes_left == 0) /* codepoint complete */
- if(codepoint > 0x10FFFF) /* is it too large? */
- complete = -1; /* error (RFC3629 limit) */
- else
- { /* finished; output utf-8 sequence */
- yield = string_catn(yield, seq_buff, seq_len);
- index = 0;
- }
- }
- }
- else /* no bytes left: new sequence */
+ if (bytes_left)
+ {
+ if ((c & 0xc0) != 0x80)
+ /* wrong continuation byte; invalidate all bytes */
+ complete = 1; /* error */
+ else
{
- if(!(c & 0x80)) /* 1-byte sequence, US-ASCII, keep it */
- {
- yield = string_catn(yield, &c, 1);
- continue;
- }
- if((c & 0xe0) == 0xc0) /* 2-byte sequence */
- {
- if(c == 0xc0 || c == 0xc1) /* 0xc0 and 0xc1 are illegal */
+ codepoint = (codepoint << 6) | (c & 0x3f);
+ seq_buff[index++] = c;
+ if (--bytes_left == 0) /* codepoint complete */
+ if(codepoint > 0x10FFFF) /* is it too large? */
+ complete = -1; /* error (RFC3629 limit) */
+ else if ( (codepoint & 0x1FF800 ) == 0xD800 ) /* surrogate */
+ /* A UTF-16 surrogate (which should be one of a pair that
+ encode a Unicode codepoint that is outside the Basic
+ Multilingual Plane). Error, not UTF8.
+ RFC2279.2 is slightly unclear on this, but
+ https://unicodebook.readthedocs.io/issues.html#strict-utf8-decoder
+ says "Surrogates characters are also invalid in UTF-8:
+ characters in U+D800—U+DFFF have to be rejected." */
complete = -1;
else
- {
- bytes_left = 1;
- codepoint = c & 0x1f;
+ { /* finished; output utf-8 sequence */
+ yield = string_catn(yield, seq_buff, seq_len);
+ index = 0;
}
- }
- else if((c & 0xf0) == 0xe0) /* 3-byte sequence */
- {
- bytes_left = 2;
- codepoint = c & 0x0f;
- }
- else if((c & 0xf8) == 0xf0) /* 4-byte sequence */
+ }
+ }
+ else /* no bytes left: new sequence */
+ {
+ if (!(c & 0x80)) /* 1-byte sequence, US-ASCII, keep it */
+ {
+ yield = string_catn(yield, &c, 1);
+ continue;
+ }
+ if ((c & 0xe0) == 0xc0) /* 2-byte sequence */
+ if (c == 0xc0 || c == 0xc1) /* 0xc0 and 0xc1 are illegal */
+ complete = -1;
+ else
{
- bytes_left = 3;
- codepoint = c & 0x07;
+ bytes_left = 1;
+ codepoint = c & 0x1f;
}
- else /* invalid or too long (RFC3629 allows only 4 bytes) */
- complete = -1;
-
- seq_buff[index++] = c;
- seq_len = bytes_left + 1;
- } /* if(bytes_left) */
-
- if (complete != 0)
+ else if ((c & 0xf0) == 0xe0) /* 3-byte sequence */
{
- bytes_left = index = 0;
- yield = string_catn(yield, UTF8_REPLACEMENT_CHAR, 1);
+ bytes_left = 2;
+ codepoint = c & 0x0f;
}
- if ((complete == 1) && ((c & 0x80) == 0))
- /* ASCII character follows incomplete sequence */
- 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 '?' */
+ else if ((c & 0xf8) == 0xf0) /* 4-byte sequence */
+ {
+ bytes_left = 3;
+ codepoint = c & 0x07;
+ }
+ else /* invalid or too long (RFC3629 allows only 4 bytes) */
+ complete = -1;
- if (bytes_left != 0)
- yield = string_catn(yield, UTF8_REPLACEMENT_CHAR, 1);
+ seq_buff[index++] = c;
+ seq_len = bytes_left + 1;
+ } /* if(bytes_left) */
- break;
+ if (complete != 0)
+ {
+ bytes_left = index = 0;
+ yield = string_catn(yield, UTF8_REPLACEMENT_CHAR, 1);
+ }
+ if ((complete == 1) && ((c & 0x80) == 0))
+ /* ASCII character follows incomplete sequence */
+ 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);
+
+ break;
+ }
#ifdef SUPPORT_I18N
- case EOP_UTF8_DOMAIN_TO_ALABEL:
+ case EOP_UTF8_DOMAIN_TO_ALABEL:
+ {
+ uschar * error = NULL;
+ uschar * s = string_domain_utf8_to_alabel(sub, &error);
+ if (error)
{
- uschar * error = NULL;
- uschar * s = string_domain_utf8_to_alabel(sub, &error);
- if (error)
- {
- expand_string_message = string_sprintf(
- "error converting utf8 (%s) to alabel: %s",
- string_printing(sub), error);
- goto EXPAND_FAILED;
- }
- yield = string_cat(yield, s);
- break;
+ expand_string_message = string_sprintf(
+ "error converting utf8 (%s) to alabel: %s",
+ string_printing(sub), error);
+ goto EXPAND_FAILED;
}
+ yield = string_cat(yield, s);
+ break;
+ }
- case EOP_UTF8_DOMAIN_FROM_ALABEL:
+ case EOP_UTF8_DOMAIN_FROM_ALABEL:
+ {
+ uschar * error = NULL;
+ uschar * s = string_domain_alabel_to_utf8(sub, &error);
+ if (error)
{
- uschar * error = NULL;
- uschar * s = string_domain_alabel_to_utf8(sub, &error);
- if (error)
- {
- expand_string_message = string_sprintf(
- "error converting alabel (%s) to utf8: %s",
- string_printing(sub), error);
- goto EXPAND_FAILED;
- }
- yield = string_cat(yield, s);
- break;
+ expand_string_message = string_sprintf(
+ "error converting alabel (%s) to utf8: %s",
+ string_printing(sub), error);
+ goto EXPAND_FAILED;
}
+ yield = string_cat(yield, s);
+ break;
+ }
- case EOP_UTF8_LOCALPART_TO_ALABEL:
+ case EOP_UTF8_LOCALPART_TO_ALABEL:
+ {
+ uschar * error = NULL;
+ uschar * s = string_localpart_utf8_to_alabel(sub, &error);
+ if (error)
{
- uschar * error = NULL;
- uschar * s = string_localpart_utf8_to_alabel(sub, &error);
- if (error)
- {
- expand_string_message = string_sprintf(
- "error converting utf8 (%s) to alabel: %s",
- string_printing(sub), error);
- goto EXPAND_FAILED;
- }
- yield = string_cat(yield, s);
- DEBUG(D_expand) debug_printf_indent("yield: '%s'\n", yield->s);
- break;
+ expand_string_message = string_sprintf(
+ "error converting utf8 (%s) to alabel: %s",
+ string_printing(sub), error);
+ goto EXPAND_FAILED;
}
+ yield = string_cat(yield, s);
+ DEBUG(D_expand) debug_printf_indent("yield: '%Y'\n", yield);
+ break;
+ }
- case EOP_UTF8_LOCALPART_FROM_ALABEL:
+ case EOP_UTF8_LOCALPART_FROM_ALABEL:
+ {
+ uschar * error = NULL;
+ uschar * s = string_localpart_alabel_to_utf8(sub, &error);
+ if (error)
{
- uschar * error = NULL;
- uschar * s = string_localpart_alabel_to_utf8(sub, &error);
- if (error)
- {
- expand_string_message = string_sprintf(
- "error converting alabel (%s) to utf8: %s",
- string_printing(sub), error);
- goto EXPAND_FAILED;
- }
- yield = string_cat(yield, s);
- break;
+ expand_string_message = string_sprintf(
+ "error converting alabel (%s) to utf8: %s",
+ string_printing(sub), error);
+ goto EXPAND_FAILED;
}
+ yield = string_cat(yield, s);
+ break;
+ }
#endif /* EXPERIMENTAL_INTERNATIONAL */
- /* escape turns all non-printing characters into escape sequences. */
+ /* escape turns all non-printing characters into escape sequences. */
- case EOP_ESCAPE:
- {
- const uschar * t = string_printing(sub);
- yield = string_cat(yield, t);
- break;
- }
+ case EOP_ESCAPE:
+ {
+ const uschar * t = string_printing(sub);
+ yield = string_cat(yield, t);
+ break;
+ }
- case EOP_ESCAPE8BIT:
- {
- uschar c;
+ case EOP_ESCAPE8BIT:
+ {
+ uschar c;
- for (const uschar * s = sub; (c = *s); s++)
- yield = c < 127 && c != '\\'
- ? string_catn(yield, s, 1)
- : string_fmt_append(yield, "\\%03o", c);
- break;
- }
+ for (const uschar * s = sub; (c = *s); s++)
+ yield = c < 127 && c != '\\'
+ ? string_catn(yield, s, 1)
+ : string_fmt_append(yield, "\\%03o", c);
+ break;
+ }
- /* Handle numeric expression evaluation */
+ /* Handle numeric expression evaluation */
- case EOP_EVAL:
- case EOP_EVAL10:
+ case EOP_EVAL:
+ case EOP_EVAL10:
+ {
+ uschar *save_sub = sub;
+ uschar *error = NULL;
+ int_eximarith_t n = eval_expr(&sub, (c == EOP_EVAL10), &error, FALSE);
+ if (error)
{
- uschar *save_sub = sub;
- uschar *error = NULL;
- int_eximarith_t n = eval_expr(&sub, (c == EOP_EVAL10), &error, FALSE);
- if (error)
- {
- expand_string_message = string_sprintf("error in expression "
- "evaluation: %s (after processing \"%.*s\")", error,
- (int)(sub-save_sub), save_sub);
- goto EXPAND_FAILED;
- }
- yield = string_fmt_append(yield, PR_EXIM_ARITH, n);
- break;
+ expand_string_message = string_sprintf("error in expression "
+ "evaluation: %s (after processing \"%.*s\")", error,
+ (int)(sub-save_sub), save_sub);
+ goto EXPAND_FAILED;
}
+ yield = string_fmt_append(yield, PR_EXIM_ARITH, n);
+ break;
+ }
- /* Handle time period formatting */
+ /* Handle time period formatting */
- case EOP_TIME_EVAL:
+ case EOP_TIME_EVAL:
+ {
+ int n = readconf_readtime(sub, 0, FALSE);
+ if (n < 0)
{
- int n = readconf_readtime(sub, 0, FALSE);
- if (n < 0)
- {
- expand_string_message = string_sprintf("string \"%s\" is not an "
- "Exim time interval in \"%s\" operator", sub, name);
- goto EXPAND_FAILED;
- }
- yield = string_fmt_append(yield, "%d", n);
- break;
+ expand_string_message = string_sprintf("string \"%s\" is not an "
+ "Exim time interval in \"%s\" operator", sub, name);
+ goto EXPAND_FAILED;
}
+ yield = string_fmt_append(yield, "%d", n);
+ break;
+ }
- case EOP_TIME_INTERVAL:
+ case EOP_TIME_INTERVAL:
+ {
+ int n;
+ uschar *t = read_number(&n, sub);
+ if (*t != 0) /* Not A Number*/
{
- int n;
- uschar *t = read_number(&n, sub);
- if (*t != 0) /* Not A Number*/
- {
- expand_string_message = string_sprintf("string \"%s\" is not a "
- "positive number in \"%s\" operator", sub, name);
- goto EXPAND_FAILED;
- }
- t = readconf_printtime(n);
- yield = string_cat(yield, t);
- break;
+ expand_string_message = string_sprintf("string \"%s\" is not a "
+ "positive number in \"%s\" operator", sub, name);
+ goto EXPAND_FAILED;
}
+ t = readconf_printtime(n);
+ yield = string_cat(yield, t);
+ break;
+ }
- /* Convert string to base64 encoding */
+ /* Convert string to base64 encoding */
- case EOP_STR2B64:
- case EOP_BASE64:
- {
+ case EOP_STR2B64:
+ case EOP_BASE64:
+ {
#ifndef DISABLE_TLS
- uschar * s = vp && *(void **)vp->value
- ? tls_cert_der_b64(*(void **)vp->value)
- : b64encode(CUS sub, Ustrlen(sub));
+ uschar * s = vp && *(void **)vp->value
+ ? tls_cert_der_b64(*(void **)vp->value)
+ : b64encode(CUS sub, Ustrlen(sub));
#else
- uschar * s = b64encode(CUS sub, Ustrlen(sub));
+ uschar * s = b64encode(CUS sub, Ustrlen(sub));
#endif
- yield = string_cat(yield, s);
- break;
- }
+ yield = string_cat(yield, s);
+ break;
+ }
- case EOP_BASE64D:
+ case EOP_BASE64D:
+ {
+ uschar * s;
+ int len = b64decode(sub, &s, sub);
+ if (len < 0)
{
- uschar * s;
- int len = b64decode(sub, &s);
- if (len < 0)
- {
- expand_string_message = string_sprintf("string \"%s\" is not "
- "well-formed for \"%s\" operator", sub, name);
- goto EXPAND_FAILED;
- }
- yield = string_cat(yield, s);
- break;
+ expand_string_message = string_sprintf("string \"%s\" is not "
+ "well-formed for \"%s\" operator", sub, name);
+ goto EXPAND_FAILED;
}
+ yield = string_cat(yield, s);
+ break;
+ }
- /* strlen returns the length of the string */
+ /* strlen returns the length of the string */
- case EOP_STRLEN:
- yield = string_fmt_append(yield, "%d", Ustrlen(sub));
- break;
+ case EOP_STRLEN:
+ yield = string_fmt_append(yield, "%d", Ustrlen(sub));
+ break;
- /* length_n or l_n takes just the first n characters or the whole string,
- whichever is the shorter;
-
- substr_m_n, and s_m_n take n characters from offset m; negative m take
- from the end; l_n is synonymous with s_0_n. If n is omitted in substr it
- takes the rest, either to the right or to the left.
-
- hash_n or h_n makes a hash of length n from the string, yielding n
- characters from the set a-z; hash_n_m makes a hash of length n, but
- uses m characters from the set a-zA-Z0-9.
-
- nhash_n returns a single number between 0 and n-1 (in text form), while
- nhash_n_m returns a div/mod hash as two numbers "a/b". The first lies
- between 0 and n-1 and the second between 0 and m-1. */
-
- case EOP_LENGTH:
- case EOP_L:
- case EOP_SUBSTR:
- case EOP_S:
- case EOP_HASH:
- case EOP_H:
- case EOP_NHASH:
- case EOP_NH:
+ /* length_n or l_n takes just the first n characters or the whole string,
+ whichever is the shorter;
+
+ substr_m_n, and s_m_n take n characters from offset m; negative m take
+ from the end; l_n is synonymous with s_0_n. If n is omitted in substr it
+ takes the rest, either to the right or to the left.
+
+ hash_n or h_n makes a hash of length n from the string, yielding n
+ characters from the set a-z; hash_n_m makes a hash of length n, but
+ uses m characters from the set a-zA-Z0-9.
+
+ nhash_n returns a single number between 0 and n-1 (in text form), while
+ nhash_n_m returns a div/mod hash as two numbers "a/b". The first lies
+ between 0 and n-1 and the second between 0 and m-1. */
+
+ case EOP_LENGTH:
+ case EOP_L:
+ case EOP_SUBSTR:
+ case EOP_S:
+ case EOP_HASH:
+ case EOP_H:
+ case EOP_NHASH:
+ case EOP_NH:
+ {
+ int sign = 1;
+ int value1 = 0;
+ int value2 = -1;
+ int *pn;
+ int len;
+ uschar *ret;
+
+ if (!arg)
{
- int sign = 1;
- int value1 = 0;
- int value2 = -1;
- int *pn;
- int len;
- uschar *ret;
+ expand_string_message = string_sprintf("missing values after %s",
+ name);
+ goto EXPAND_FAILED;
+ }
- if (!arg)
- {
- expand_string_message = string_sprintf("missing values after %s",
- name);
- goto EXPAND_FAILED;
- }
+ /* "length" has only one argument, effectively being synonymous with
+ substr_0_n. */
+
+ if (c == EOP_LENGTH || c == EOP_L)
+ {
+ pn = &value2;
+ value2 = 0;
+ }
- /* "length" has only one argument, effectively being synonymous with
- substr_0_n. */
+ /* The others have one or two arguments; for "substr" the first may be
+ negative. The second being negative means "not supplied". */
- if (c == EOP_LENGTH || c == EOP_L)
+ else
+ {
+ pn = &value1;
+ if (name[0] == 's' && *arg == '-') { sign = -1; arg++; }
+ }
+
+ /* Read up to two numbers, separated by underscores */
+
+ ret = arg;
+ while (*arg != 0)
+ {
+ if (arg != ret && *arg == '_' && pn == &value1)
{
pn = &value2;
value2 = 0;
+ if (arg[1] != 0) arg++;
}
-
- /* The others have one or two arguments; for "substr" the first may be
- negative. The second being negative means "not supplied". */
-
- else
+ else if (!isdigit(*arg))
{
- pn = &value1;
- if (name[0] == 's' && *arg == '-') { sign = -1; arg++; }
+ expand_string_message =
+ string_sprintf("non-digit after underscore in \"%s\"", name);
+ goto EXPAND_FAILED;
}
+ else *pn = (*pn)*10 + *arg++ - '0';
+ }
+ value1 *= sign;
- /* Read up to two numbers, separated by underscores */
-
- ret = arg;
- while (*arg != 0)
- {
- if (arg != ret && *arg == '_' && pn == &value1)
- {
- pn = &value2;
- value2 = 0;
- if (arg[1] != 0) arg++;
- }
- else if (!isdigit(*arg))
- {
- expand_string_message =
- string_sprintf("non-digit after underscore in \"%s\"", name);
- goto EXPAND_FAILED;
- }
- else *pn = (*pn)*10 + *arg++ - '0';
- }
- value1 *= sign;
+ /* Perform the required operation */
- /* Perform the required operation */
+ ret = c == EOP_HASH || c == EOP_H
+ ? compute_hash(sub, value1, value2, &len)
+ : c == EOP_NHASH || c == EOP_NH
+ ? compute_nhash(sub, value1, value2, &len)
+ : extract_substr(sub, value1, value2, &len);
+ if (!ret) goto EXPAND_FAILED;
- ret = c == EOP_HASH || c == EOP_H
- ? compute_hash(sub, value1, value2, &len)
- : c == EOP_NHASH || c == EOP_NH
- ? compute_nhash(sub, value1, value2, &len)
- : extract_substr(sub, value1, value2, &len);
- if (!ret) goto EXPAND_FAILED;
+ yield = string_catn(yield, ret, len);
+ break;
+ }
- yield = string_catn(yield, ret, len);
- break;
- }
+ /* Stat a path */
- /* Stat a path */
+ case EOP_STAT:
+ {
+ uschar smode[12];
+ uschar **modetable[3];
+ mode_t mode;
+ struct stat st;
- case EOP_STAT:
+ if (expand_forbid & RDO_EXISTS)
{
- uschar smode[12];
- uschar **modetable[3];
- mode_t mode;
- struct stat st;
+ expand_string_message = US"Use of the stat() expansion is not permitted";
+ goto EXPAND_FAILED;
+ }
- if (expand_forbid & RDO_EXISTS)
- {
- expand_string_message = US"Use of the stat() expansion is not permitted";
- goto EXPAND_FAILED;
- }
+ if (stat(CS sub, &st) < 0)
+ {
+ expand_string_message = string_sprintf("stat(%s) failed: %s",
+ sub, strerror(errno));
+ goto EXPAND_FAILED;
+ }
+ mode = st.st_mode;
+ switch (mode & S_IFMT)
+ {
+ case S_IFIFO: smode[0] = 'p'; break;
+ case S_IFCHR: smode[0] = 'c'; break;
+ case S_IFDIR: smode[0] = 'd'; break;
+ case S_IFBLK: smode[0] = 'b'; break;
+ case S_IFREG: smode[0] = '-'; break;
+ default: smode[0] = '?'; break;
+ }
- if (stat(CS sub, &st) < 0)
- {
- expand_string_message = string_sprintf("stat(%s) failed: %s",
- sub, strerror(errno));
- goto EXPAND_FAILED;
- }
- mode = st.st_mode;
- switch (mode & S_IFMT)
- {
- case S_IFIFO: smode[0] = 'p'; break;
- case S_IFCHR: smode[0] = 'c'; break;
- case S_IFDIR: smode[0] = 'd'; break;
- case S_IFBLK: smode[0] = 'b'; break;
- case S_IFREG: smode[0] = '-'; break;
- default: smode[0] = '?'; break;
- }
+ modetable[0] = ((mode & 01000) == 0)? mtable_normal : mtable_sticky;
+ modetable[1] = ((mode & 02000) == 0)? mtable_normal : mtable_setid;
+ modetable[2] = ((mode & 04000) == 0)? mtable_normal : mtable_setid;
- modetable[0] = ((mode & 01000) == 0)? mtable_normal : mtable_sticky;
- modetable[1] = ((mode & 02000) == 0)? mtable_normal : mtable_setid;
- modetable[2] = ((mode & 04000) == 0)? mtable_normal : mtable_setid;
+ for (int i = 0; i < 3; i++)
+ {
+ memcpy(CS(smode + 7 - i*3), CS(modetable[i][mode & 7]), 3);
+ mode >>= 3;
+ }
- for (int i = 0; i < 3; i++)
- {
- memcpy(CS(smode + 7 - i*3), CS(modetable[i][mode & 7]), 3);
- mode >>= 3;
- }
+ smode[10] = 0;
+ 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);
+ break;
+ }
- smode[10] = 0;
- 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);
- break;
- }
+ /* vaguely random number less than N */
- /* vaguely random number less than N */
+ case EOP_RANDINT:
+ {
+ int_eximarith_t max = expanded_string_integer(sub, TRUE);
- case EOP_RANDINT:
- {
- int_eximarith_t max = expanded_string_integer(sub, TRUE);
+ if (expand_string_message)
+ goto EXPAND_FAILED;
+ yield = string_fmt_append(yield, "%d", vaguely_random_number((int)max));
+ break;
+ }
- if (expand_string_message)
- goto EXPAND_FAILED;
- yield = string_fmt_append(yield, "%d", vaguely_random_number((int)max));
- break;
- }
+ /* Reverse IP, including IPv6 to dotted-nibble */
- /* Reverse IP, including IPv6 to dotted-nibble */
+ case EOP_REVERSE_IP:
+ {
+ int family, maskptr;
+ uschar reversed[128];
- case EOP_REVERSE_IP:
+ family = string_is_ip_address(sub, &maskptr);
+ if (family == 0)
{
- int family, maskptr;
- uschar reversed[128];
-
- family = string_is_ip_address(sub, &maskptr);
- if (family == 0)
- {
- expand_string_message = string_sprintf(
- "reverse_ip() not given an IP address [%s]", sub);
- goto EXPAND_FAILED;
- }
- invert_address(reversed, sub);
- yield = string_cat(yield, reversed);
- break;
+ expand_string_message = string_sprintf(
+ "reverse_ip() not given an IP address [%s]", sub);
+ goto EXPAND_FAILED;
}
+ invert_address(reversed, sub);
+ yield = string_cat(yield, reversed);
+ break;
+ }
- /* Unknown operator */
+ case EOP_XTEXTD:
+ {
+ uschar * s;
+ int len = xtextdecode(sub, &s);
+ yield = string_catn(yield, s, len);
+ break;
+ }
- default:
- expand_string_message =
- string_sprintf("unknown expansion operator \"%s\"", name);
- goto EXPAND_FAILED;
- } /* EOP_* switch */
+ /* Unknown operator */
+ default:
+ expand_string_message =
+ string_sprintf("unknown expansion operator \"%s\"", name);
+ goto EXPAND_FAILED;
+ } /* EOP_* switch */
- DEBUG(D_expand)
+ DEBUG(D_expand)
{
- const uschar * s = yield->s + start;
- int i = yield->ptr - start;
+ const uschar * res = string_from_gstring(yield);
+ const uschar * s = res + expansion_start;
+ int i = gstring_length(yield) - expansion_start;
BOOL tainted = is_tainted(s);
- DEBUG(D_noutf8)
+ debug_printf_indent("%Vop-res: %.*s\n", "K-----", i, s);
+ if (tainted)
{
- debug_printf_indent("|-----op-res: %.*s\n", i, s);
- if (tainted)
- {
- debug_printf_indent("%s \\__", flags & ESI_SKIPPING ? "| " : " ");
- debug_print_taint(yield->s);
- }
- }
- else
- {
- debug_printf_indent(UTF8_VERT_RIGHT
- UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ
- "op-res: %.*s\n", i, s);
- if (tainted)
- {
- debug_printf_indent("%s",
- flags & ESI_SKIPPING
- ? UTF8_VERT " " : " " UTF8_UP_RIGHT UTF8_HORIZ UTF8_HORIZ);
- debug_print_taint(yield->s);
- }
+ debug_printf_indent("%V %V",
+ flags & ESI_SKIPPING ? "|" : " ",
+ "\\__");
+ debug_print_taint(res);
}
}
continue;
reset_point = store_mark();
g = store_get(sizeof(gstring), GET_UNTAINTED); /* alloc _before_ calling find_variable() */
}
- if (!(value = find_variable(name, FALSE, !!(flags & ESI_SKIPPING), &newsize)))
+ if (!(value = find_variable(name, flags, &newsize)))
{
expand_string_message =
string_sprintf("unknown variable in \"${%s}\"", name);
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)
- yield = string_get(1);
-(void) string_from_gstring(yield);
-if (left) *left = s;
+ {
+ uschar * res;
-/* 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 (!yield)
+ yield = string_get(1);
+ res = string_from_gstring(yield);
+ if (left) *left = s;
-if (resetok) gstring_release_unused(yield);
-else if (resetok_p) *resetok_p = FALSE;
+ /* 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. */
-DEBUG(D_expand)
- {
- BOOL tainted = is_tainted(yield->s);
- DEBUG(D_noutf8)
- {
- debug_printf_indent("|--expanding: %.*s\n", (int)(s - string), string);
- debug_printf_indent("%sresult: %s\n",
- flags & ESI_SKIPPING ? "|-----" : "\\_____", yield->s);
- if (tainted)
- {
- debug_printf_indent("%s \\__", flags & ESI_SKIPPING ? "| " : " ");
- debug_print_taint(yield->s);
- }
- if (flags & ESI_SKIPPING)
- debug_printf_indent("\\___skipping: result is not used\n");
- }
- else
+ if (resetok) gstring_release_unused(yield);
+ else if (resetok_p) *resetok_p = FALSE;
+
+ DEBUG(D_expand)
{
- debug_printf_indent(UTF8_VERT_RIGHT UTF8_HORIZ UTF8_HORIZ
- "expanding: %.*s\n",
+ BOOL tainted = is_tainted(res);
+ debug_printf_indent("%Vexpanded: %.*W\n",
+ "K---",
(int)(s - string), string);
- debug_printf_indent("%s" UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ
- "result: %s\n",
- flags & ESI_SKIPPING ? UTF8_VERT_RIGHT : UTF8_UP_RIGHT,
- yield->s);
+ debug_printf_indent("%Vresult: ",
+ flags & ESI_SKIPPING ? "K-----" : "\\_____");
+ if (*res || !(flags & ESI_SKIPPING))
+ debug_printf("%W\n", res);
+ else
+ debug_printf(" %Vskipped%V\n", "<", ">");
if (tainted)
{
- debug_printf_indent("%s",
- flags & ESI_SKIPPING
- ? UTF8_VERT " " : " " UTF8_UP_RIGHT UTF8_HORIZ UTF8_HORIZ);
- debug_print_taint(yield->s);
+ debug_printf_indent("%V %V",
+ flags & ESI_SKIPPING ? "|" : " ",
+ "\\__"
+ );
+ debug_print_taint(res);
}
if (flags & ESI_SKIPPING)
- debug_printf_indent(UTF8_UP_RIGHT UTF8_HORIZ UTF8_HORIZ UTF8_HORIZ
- "skipping: result is not used\n");
+ debug_printf_indent("%Vskipping: result is not used\n", "\\___");
}
- }
-if (textonly_p) *textonly_p = textonly;
-expand_level--;
-return yield->s;
+ if (textonly_p) *textonly_p = textonly;
+ expand_level--;
+ return res;
+ }
/* 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".
if (left) *left = s;
DEBUG(D_expand)
{
- 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");
- }
+ debug_printf_indent("%Vfailed to expand: %s\n", "K", string);
+ debug_printf_indent("%Verror message: %s\n",
+ f.expand_string_forcedfail ? "K---" : "\\___", expand_string_message);
+ if (f.expand_string_forcedfail)
+ debug_printf_indent("%Vfailure was forced\n", "\\");
}
if (resetok_p && !resetok) *resetok_p = FALSE;
expand_level--;
const uschar *
expand_string_2(const uschar * string, BOOL * textonly_p)
{
+f.expand_string_forcedfail = f.search_find_defer = malformed_header = FALSE;
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, ESI_HONOR_DOLLAR, NULL, NULL, textonly_p);
store_pool = old_pool;
*/
int
-exp_bool(address_item *addr,
- uschar *mtype, uschar *mname, unsigned dbg_opt,
- uschar *oname, BOOL bvalue,
- uschar *svalue, BOOL *rvalue)
+exp_bool(address_item * addr,
+ const uschar * mtype, const uschar * mname, unsigned dbg_opt,
+ uschar * oname, BOOL bvalue,
+ const uschar * svalue, BOOL * rvalue)
{
-uschar *expanded;
+const uschar * expanded;
+
+DEBUG(D_expand) debug_printf("try option %s\n", oname);
if (!svalue) { *rvalue = bvalue; return OK; }
-if (!(expanded = expand_string(svalue)))
+if (!(expanded = expand_cstring(svalue)))
{
if (f.expand_string_forcedfail)
{
#endif
/* check known-name variables */
-for (var_entry * v = var_table; v < var_table + var_table_size; v++)
+for (var_entry * v = var_table; v < var_table + nelem(var_table); v++)
if (v->type == vtype_stringptr)
assert_variable_notin(US v->name, *(USS v->value), &e);
return 0;
}
-#endif
+#endif /*STAND_ALONE*/
+#endif /*!MACRO_PREDEF*/
/* vi: aw ai sw=2
*/
/* End of expand.c */
git://git.exim.org / exim.git / blobdiff