int rule_number = 1;
int yield_start = 0, yield_end = 0;
-if (whole != NULL) *whole = FALSE;
+if (whole) *whole = FALSE;
-/* Scan the rewriting rules */
+/* Scan the rewriting rules, ignoring any without matching flag */
-for (rewrite_rule * rule = rewrite_rules; rule; rule_number++, rule = rule->next)
+for (rewrite_rule * rule = rewrite_rules;
+ rule && !done;
+ rule_number++, rule = rule->next) if (rule->flags & flag)
{
int start, end, pdomain;
int count = 0;
const uschar *save_domain;
uschar *error, *new, *newparsed;
- /* Ensure that the flag matches the flags in the rule. */
-
- if ((rule->flags & flag) == 0) continue;
-
/* Come back here for a repeat after a successful rewrite. We do this
only so many times. */
with the other kinds of rewrite, where expansion happens inside
match_address_list(). */
- if ((flag & rewrite_smtp) != 0)
+ if (flag & rewrite_smtp)
{
uschar *key = expand_string(rule->key);
- if (key == NULL)
+ if (!key)
{
if (!f.expand_string_forcedfail)
log_write(0, LOG_MAIN|LOG_PANIC, "failed to expand \"%s\" while "
else
{
- if (domain == NULL) domain = Ustrrchr(subject, '@') + 1;
+ if (!domain) domain = Ustrrchr(subject, '@') + 1;
/* Use the general function for matching an address against a list (here
just one item, so use the "impossible value" separator UCHAR_MAX+1). */
give up altogether. For other expansion failures we have a configuration
error. */
- if (new == NULL)
+ if (!new)
{
if (f.expand_string_forcedfail)
- { if ((rule->flags & rewrite_quit) != 0) break; else continue; }
+ { if (rule->flags & rewrite_quit) break; else continue; }
expand_string_message = expand_hide_passwords(expand_string_message);
newparsed = parse_extract_address(new, &error, &start, &end, &pdomain,
flag == rewrite_envfrom || flag == (rewrite_smtp|rewrite_smtp_sender));
- if (newparsed == NULL)
+ if (!newparsed)
{
log_write(0, LOG_MAIN|LOG_PANIC, "Rewrite of %s yielded unparseable "
"address: %s in address %s", subject, error, new);
if (pdomain == 0 && (*newparsed != 0 ||
(flag != rewrite_envfrom && flag != (rewrite_smtp|rewrite_smtp_sender))))
{
- if ((rule->flags & rewrite_qualify) != 0)
+ if (rule->flags & rewrite_qualify)
{
newparsed = rewrite_address_qualify(newparsed, TRUE);
new = string_sprintf("%.*s%s%.*s", start, new, newparsed,
flag set and so we must preserve the non-active portion of the current
subject unless the current rule also has the w flag set. */
- if (whole != NULL && (flag & rewrite_all_headers) != 0)
+ if (whole && (flag & rewrite_all_headers))
{
/* Current rule has the w flag set. We must ensure the phrase parts
are syntactically valid if they are present. */
- if ((rule->flags & rewrite_whole) != 0)
+ if (rule->flags & rewrite_whole)
{
if (start > 0 && new[start-1] == '<')
{
uschar *p1 = new + start - 1;
uschar *p2 = new + end + 1;
const uschar *pf1, *pf2;
- uschar buff1[256], buff2[256];
while (p1 > new && p1[-1] == ' ') p1--;
- pf1 = parse_fix_phrase(new, p1 - new, buff1, sizeof(buff1));
+ pf1 = parse_fix_phrase(new, p1 - new);
while (*p2 == ' ') p2++;
- pf2 = parse_fix_phrase(p2, Ustrlen(p2), buff2, sizeof(buff2));
-
- /* Note that pf1 and pf2 are NOT necessarily buff1 and buff2. For
- a non-RFC 2047 phrase that does not need to be RFC 2822 quoted, they
- will be buff1+1 and buff2+1. */
+ pf2 = parse_fix_phrase(p2, Ustrlen(p2));
start = Ustrlen(pf1) + start + new - p1;
end = start + Ustrlen(newparsed);
/* If no further rewrites are to be done, set the done flag. This allows
repeats of the current rule if configured before breaking the loop. */
- if ((rule->flags & rewrite_quit) != 0) done = TRUE;
+ if (rule->flags & rewrite_quit) done = TRUE;
/* Allow the current rule to be applied up to 10 times if
requested. */
- if ((rule->flags & rewrite_repeat) != 0)
+ if (rule->flags & rewrite_repeat)
{
if (count++ < 10) goto REPEAT_RULE;
log_write(0, LOG_MAIN|LOG_PANIC, "rewrite rule repeat ignored after 10 "
{
int lastnewline = 0;
header_line *newh = NULL;
-void *function_reset_point = store_get(0);
+rmark function_reset_point = store_mark();
uschar *s = Ustrchr(h->text, ':') + 1;
+
while (isspace(*s)) s++;
DEBUG(D_rewrite)
uschar *sprev;
uschar *ss = parse_find_address_end(s, FALSE);
uschar *recipient, *new, *errmess;
- void *loop_reset_point = store_get(0);
+ rmark loop_reset_point = store_mark();
BOOL changed = FALSE;
int terminator = *ss;
int start, end, domain;
the next address, saving the start of the old one. */
*ss = 0;
- recipient = parse_extract_address(s,&errmess,&start,&end,&domain,FALSE);
+ recipient = parse_extract_address(s, &errmess, &start, &end, &domain, FALSE);
*ss = terminator;
sprev = s;
- s = ss + (terminator? 1:0);
+ s = ss + (terminator ? 1 :0);
while (isspace(*s)) s++;
/* There isn't much we can do for syntactic disasters at this stage.
if (!recipient)
{
- store_reset(loop_reset_point);
+ loop_reset_point = store_reset(loop_reset_point);
continue;
}
as abc@xyz, which the DNS lookup turns into abc@xyz.foo.com). However, if no
change is made here, don't bother carrying on. */
- if (routed_old != NULL)
+ if (routed_old)
{
if (domain <= 0 || strcmpic(recipient+domain, routed_old) != 0) continue;
recipient[domain-1] = 0;
if (changed && ((is_recipient && !f.allow_unqualified_recipient) ||
(!is_recipient && !f.allow_unqualified_sender)))
{
- store_reset(loop_reset_point);
+ loop_reset_point = store_reset(loop_reset_point);
continue;
}
}
"whole" flag set, adjust the pointers so that the whole address gets
replaced, except possibly a final \n. */
- if ((existflags & flag) != 0)
+ if (existflags & flag)
{
BOOL whole;
new = rewrite_one(recipient, flag, &whole, FALSE, NULL, rewrite_rules);
point, because we may have a rewritten line from a previous time round the
loop. */
- if (!changed) store_reset(loop_reset_point);
+ if (!changed) loop_reset_point = store_reset(loop_reset_point);
/* If the address has changed, create a new header containing the
rewritten address. We do not need to set the chain pointers at this
int newlen = Ustrlen(new);
int oldlen = end - start;
- header_line *prev = (newh == NULL)? h : newh;
- uschar *newt = store_malloc(prev->slen - oldlen + newlen + 4);
- uschar *newtstart = newt;
+ header_line * prev = newh ? newh : h;
+ uschar * newt = store_get_perm(prev->slen - oldlen + newlen + 4, TRUE);
+ uschar * newtstart = newt;
int type = prev->type;
int slen = prev->slen - oldlen + newlen;
if (*p != '\n')
{
lastnewline = newt - newtstart;
- Ustrcat(newt, "\n\t");
+ Ustrcat(newt, US"\n\t");
slen += 2;
}
}
rewritten copy from a previous time round this loop. */
store_reset(function_reset_point);
- newh = store_get(sizeof(header_line));
+ function_reset_point = store_mark();
+ newh = store_get(sizeof(header_line), FALSE);
newh->type = type;
newh->slen = slen;
newh->text = string_copyn(newtstart, slen);
- store_free(newtstart);
/* Set up for scanning the rest of the header */
s = newh->text + remlen;
- DEBUG(D_rewrite) debug_printf("remainder: %s", (*s == 0)? US"\n" : s);
+ DEBUG(D_rewrite) debug_printf("remainder: %s", *s ? s : US"\n");
}
}
/* If a rewrite happened and "replace" is true, put the new header into the
chain following the old one, and mark the old one as replaced. */
-if (newh != NULL && replace)
+if (newh && replace)
{
newh->next = h->next;
- if (newh->next == NULL) header_last = newh;
+ if (!newh->next) header_last = newh;
h->type = htype_old;
h->next = newh;
}
const uschar *routed_old, const uschar *routed_new,
rewrite_rule *rewrite_rules, int existflags, BOOL replace)
{
+int flag;
switch (h->type)
{
- case htype_sender:
- return rewrite_one_header(h, rewrite_sender, routed_old, routed_new,
- rewrite_rules, existflags, replace);
-
- case htype_from:
- return rewrite_one_header(h, rewrite_from, routed_old, routed_new,
- rewrite_rules, existflags, replace);
-
- case htype_to:
- return rewrite_one_header(h, rewrite_to, routed_old, routed_new,
- rewrite_rules, existflags, replace);
-
- case htype_cc:
- return rewrite_one_header(h, rewrite_cc, routed_old, routed_new,
- rewrite_rules, existflags, replace);
-
- case htype_bcc:
- return rewrite_one_header(h, rewrite_bcc, routed_old, routed_new,
- rewrite_rules, existflags, replace);
-
- case htype_reply_to:
- return rewrite_one_header(h, rewrite_replyto, routed_old, routed_new,
- rewrite_rules, existflags, replace);
+ case htype_sender: flag = rewrite_sender; break;
+ case htype_from: flag = rewrite_from; break;
+ case htype_to: flag = rewrite_to; break;
+ case htype_cc: flag = rewrite_cc; break;
+ case htype_bcc: flag = rewrite_bcc; break;
+ case htype_reply_to: flag = rewrite_replyto; break;
+ default: return NULL;
}
-
-return NULL;
+return rewrite_one_header(h, flag, routed_old, routed_new,
+ rewrite_rules, existflags, replace);
}
git://git.exim.org / exim.git / blobdiff