/* Read the next record from STREAM. RECORD is a buffer provided by
the caller and must be at leadt of size RECORDSIZE. The function
return 0 on success and and error code on failure; a diagnostic
printed as well. Note that there is no need for an EOF indicator
because a tarball has an explicit EOF record. */
gpg_error_t
read_record (estream_t stream, void *record)
{
gpg_error_t err;
size_t nread;
nread = es_fread (record, 1, RECORDSIZE, stream);
if (nread != RECORDSIZE)
{
err = gpg_error_from_syserror ();
if (es_ferror (stream))
log_error ("error reading '%s': %s\n",
es_fname_get (stream), gpg_strerror (err));
else
log_error ("error reading '%s': premature EOF "
"(size of last record: %zu)\n",
es_fname_get (stream), nread);
}
else
err = 0;
return err;
}
/* Write the RECORD of size RECORDSIZE to STREAM. FILENAME is the
name of the file used for diagnostics. */
gpg_error_t
write_record (estream_t stream, const void *record)
{
gpg_error_t err;
size_t nwritten;
nwritten = es_fwrite (record, 1, RECORDSIZE, stream);
if (nwritten != RECORDSIZE)
{
err = gpg_error_from_syserror ();
log_error ("error writing '%s': %s\n",
es_fname_get (stream), gpg_strerror (err));
}
else
err = 0;
return err;
}
/* Parse the policy flags by reading them from STREAM and storing them
* into FLAGS. If IGNORE_UNKNOWN is iset unknown keywords are
* ignored. */
gpg_error_t
wks_parse_policy (policy_flags_t flags, estream_t stream, int ignore_unknown)
{
enum tokens {
TOK_SUBMISSION_ADDRESS,
TOK_MAILBOX_ONLY,
TOK_DANE_ONLY,
TOK_AUTH_SUBMIT,
TOK_MAX_PENDING,
TOK_PROTOCOL_VERSION
};
static struct {
const char *name;
enum tokens token;
} keywords[] = {
{ "submission-address", TOK_SUBMISSION_ADDRESS },
{ "mailbox-only", TOK_MAILBOX_ONLY },
{ "dane-only", TOK_DANE_ONLY },
{ "auth-submit", TOK_AUTH_SUBMIT },
{ "max-pending", TOK_MAX_PENDING },
{ "protocol-version", TOK_PROTOCOL_VERSION }
};
gpg_error_t err = 0;
int lnr = 0;
char line[1024];
char *p, *keyword, *value;
int i, n;
memset (flags, 0, sizeof *flags);
while (es_fgets (line, DIM(line)-1, stream) )
{
lnr++;
n = strlen (line);
if (!n || line[n-1] != '\n')
{
err = gpg_error (*line? GPG_ERR_LINE_TOO_LONG
: GPG_ERR_INCOMPLETE_LINE);
break;
}
trim_trailing_spaces (line);
/* Skip empty and comment lines. */
for (p=line; spacep (p); p++)
;
if (!*p || *p == '#')
continue;
if (*p == ':')
{
err = gpg_error (GPG_ERR_SYNTAX);
break;
}
keyword = p;
value = NULL;
if ((p = strchr (p, ':')))
{
/* Colon found: Keyword with value. */
*p++ = 0;
for (; spacep (p); p++)
;
if (!*p)
{
err = gpg_error (GPG_ERR_MISSING_VALUE);
break;
}
value = p;
}
for (i=0; i < DIM (keywords); i++)
if (!ascii_strcasecmp (keywords[i].name, keyword))
break;
if (!(i < DIM (keywords)))
{
if (ignore_unknown)
continue;
err = gpg_error (GPG_ERR_INV_NAME);
break;
}
switch (keywords[i].token)
{
case TOK_SUBMISSION_ADDRESS:
if (!value || !*value)
{
err = gpg_error (GPG_ERR_SYNTAX);
goto leave;
}
xfree (flags->submission_address);
flags->submission_address = xtrystrdup (value);
if (!flags->submission_address)
{
err = gpg_error_from_syserror ();
goto leave;
}
break;
case TOK_MAILBOX_ONLY: flags->mailbox_only = 1; break;
case TOK_DANE_ONLY: flags->dane_only = 1; break;
case TOK_AUTH_SUBMIT: flags->auth_submit = 1; break;
case TOK_MAX_PENDING:
if (!value)
{
err = gpg_error (GPG_ERR_SYNTAX);
goto leave;
}
/* FIXME: Define whether these are seconds, hours, or days
* and decide whether to allow other units. */
flags->max_pending = atoi (value);
break;
case TOK_PROTOCOL_VERSION:
if (!value)
{
err = gpg_error (GPG_ERR_SYNTAX);
goto leave;
}
flags->protocol_version = atoi (value);
break;
}
}
if (!err && !es_feof (stream))
err = gpg_error_from_syserror ();
leave:
if (err)
log_error ("error reading '%s', line %d: %s\n",
es_fname_get (stream), lnr, gpg_strerror (err));
return err;
}
