void
strb_vadd(struct strb **sbp, const char *key, const char *value, va_list ap)
{
struct strb *sb = *sbp;
size_t size, keylen, valuelen;
u_int n;
struct strbent sbe, *sbep;
va_list aq;
keylen = strlen(key) + 1;
va_copy(aq, ap);
valuelen = xvsnprintf(NULL, 0, value, aq) + 1;
va_end(aq);
size = sb->str_size;
while (sb->str_size - sb->str_used < keylen + valuelen) {
if (STRB_SIZE(sb) > SIZE_MAX / 2)
fatalx("size too large");
sb->str_size *= 2;
}
if (size != sb->str_size) {
sb = *sbp = xrealloc(sb, 1, STRB_SIZE(sb));
memmove(
STRB_ENTBASE(sb), STRB_BASE(sb) + size, STRB_ENTSIZE(sb));
memset(STRB_BASE(sb) + size, 0, sb->str_size - size);
}
sbep = strb_address(sb, key);
if (sbep == NULL) {
if (sb->ent_used > sb->ent_max) {
/* Allocate some more entries. */
n = sb->ent_max;
size = STRB_SIZE(sb);
if (sb->ent_max > UINT_MAX / 2)
fatalx("ent_max too large");
sb->ent_max *= 2;
if (STRB_SIZE(sb) < size)
fatalx("size too large");
sb = *sbp = xrealloc(sb, 1, STRB_SIZE(sb));
memset(STRB_ENTRY(sb, n), 0, STRB_ENTSIZE(sb) / 2);
}
sbep = STRB_ENTRY(sb, sb->ent_used);
sb->ent_used++;
sbe.key = sb->str_used;
memcpy(STRB_KEY(sb, &sbe), key, keylen);
sb->str_used += keylen;
} else
memcpy(&sbe, sbep, sizeof sbe);
sbe.value = sb->str_used;
xvsnprintf(STRB_VALUE(sb, &sbe), valuelen, value, ap);
sb->str_used += valuelen;
memcpy(sbep, &sbe, sizeof sbe);
}
int
match_command_match(struct mail_ctx *mctx, struct expritem *ei)
{
struct match_command_data *data = ei->data;
struct account *a = mctx->account;
struct mail *m = mctx->mail;
struct io *io = mctx->io;
struct msg msg;
struct msgbuf msgbuf;
struct userdata *ud;
char *user;
set_wrapped(m, '\n');
/*
* We are called as the child so to change uid this needs to be done
* largely in the parent.
*/
memset(&msg, 0, sizeof msg);
msg.type = MSG_COMMAND;
msg.id = m->idx;
msg.data.account = a;
msg.data.cmddata = data;
user = conf.cmd_user;
if (data->user.str != NULL)
user = replacestr(&data->user, m->tags, m, &m->rml);
if ((ud = user_lookup(user, conf.user_order)) == NULL) {
log_warnx("%s: bad user: %s", a->name, user);
return (MATCH_ERROR);
}
if (data->user.str != NULL)
xfree(user);
msg.data.uid = ud->uid;
msg.data.gid = ud->gid;
update_tags(&m->tags, ud);
user_free(ud);
msgbuf.buf = m->tags;
msgbuf.len = STRB_SIZE(m->tags);
mail_send(m, &msg);
if (privsep_send(io, &msg, &msgbuf) != 0)
fatalx("privsep_send error");
reset_tags(&m->tags);
mctx->msgid = msg.id;
return (MATCH_PARENT);
}
void
strb_clear(struct strb **sbp)
{
struct strb *sb = *sbp;
sb->ent_used = 0;
sb->ent_max = STRBENTRIES;
sb->str_size = STRBBLOCK;
sb->str_used = 0;
sb = *sbp = xrealloc(sb, 1, STRB_SIZE(sb));
memset(STRB_BASE(sb), 0, sb->str_size + STRB_ENTSIZE(sb));
}
int
child_deliver(struct child *child, struct io *pio)
{
struct child_deliver_data *data = child->data;
struct account *a = data->account;
struct mail *m = data->mail;
struct msg msg;
struct msgbuf msgbuf;
int error = 0;
#ifdef DEBUG
xmalloc_clear();
COUNTFDS(a->name);
#endif
log_debug2("%s: deliver started, pid %ld", a->name, (long) getpid());
#ifdef HAVE_SETPROCTITLE
setproctitle("%s[%lu]", data->name, (u_long) geteuid());
#endif
/* Call the hook. */
memset(&msg, 0, sizeof msg);
data->hook(0, a, &msg, data, &msg.data.error);
/* Inform parent we're done. */
msg.type = MSG_DONE;
msg.id = 0;
msgbuf.buf = m->tags;
msgbuf.len = STRB_SIZE(m->tags);
if (privsep_send(pio, &msg, &msgbuf) != 0)
fatalx("privsep_send error");
do {
if (privsep_recv(pio, &msg, NULL) != 0)
fatalx("privsep_recv error");
} while (msg.type != MSG_EXIT);
#ifdef DEBUG
COUNTFDS(a->name);
xmalloc_report(getpid(), a->name);
#endif
return (error);
}