int main(int unused_argc, char **unused_argv)
{
VSTRING *unquoted = vstring_alloc(BUFLEN);
VSTRING *quoted = vstring_alloc(100);
ssize_t len;
while ((len = read_buf(VSTREAM_IN, unquoted)) > 0) {
xtext_quote(quoted, STR(unquoted), "+=");
if (xtext_unquote(unquoted, STR(quoted)) == 0)
msg_fatal("bad input: %.100s", STR(quoted));
if (LEN(unquoted) != len)
msg_fatal("len %ld != unquoted len %ld",
(long) len, (long) LEN(unquoted));
if (vstream_fwrite(VSTREAM_OUT, STR(unquoted), LEN(unquoted)) != LEN(unquoted))
msg_fatal("write error: %m");
}
vstream_fflush(VSTREAM_OUT);
vstring_free(unquoted);
vstring_free(quoted);
return (0);
}
static int smtpd_proxy_xforward_send(SMTPD_STATE *state, VSTRING *buf,
const char *name,
int value_available,
const char *value)
{
size_t new_len;
int ret;
#define CONSTR_LEN(s) (sizeof(s) - 1)
#define PAYLOAD_LIMIT (512 - CONSTR_LEN("250 " XFORWARD_CMD "\r\n"))
if (!value_available)
value = XFORWARD_UNAVAILABLE;
/*
* Encode the attribute value.
*/
if (state->expand_buf == 0)
state->expand_buf = vstring_alloc(100);
xtext_quote(state->expand_buf, value, "");
/*
* How much space does this attribute need? SPACE name = value.
*/
new_len = strlen(name) + strlen(STR(state->expand_buf)) + 2;
if (new_len > PAYLOAD_LIMIT)
msg_warn("%s command payload %s=%.10s... exceeds SMTP protocol limit",
XFORWARD_CMD, name, value);
/*
* Flush the buffer if we need to, and store the attribute.
*/
if (VSTRING_LEN(buf) > 0 && VSTRING_LEN(buf) + new_len > PAYLOAD_LIMIT)
if ((ret = smtpd_proxy_xforward_flush(state, buf)) < 0)
return (ret);
vstring_sprintf_append(buf, " %s=%s", name, STR(state->expand_buf));
return (0);
}