/*
* Clear an sbuf and reset its position.
*/
void
sbuf_clear(struct sbuf *s)
{
assert_sbuf_integrity(s);
/* don't care if it's finished or not */
SBUF_CLEARFLAG(s, SBUF_FINISHED);
SBUF_CLEARFLAG(s, SBUF_OVERFLOWED);
s->s_len = 0;
}
/*
* End the section padding to the specified length with the specified
* character.
*/
ssize_t
sbuf_end_section(struct sbuf *s, ssize_t old_len, size_t pad, int c)
{
ssize_t len;
assert_sbuf_integrity(s);
assert_sbuf_state(s, 0);
KASSERT(SBUF_ISSECTION(s),
("attempt to end a section when not in a section"));
if (pad > 1) {
len = roundup(s->s_sect_len, pad) - s->s_sect_len;
for (; s->s_error == 0 && len > 0; len--)
sbuf_put_byte(s, c);
}
len = s->s_sect_len;
if (old_len == -1) {
s->s_sect_len = 0;
SBUF_CLEARFLAG(s, SBUF_INSECTION);
} else {
s->s_sect_len += old_len;
}
if (s->s_error != 0)
return (-1);
return (len);
}
/*
* Finish off an sbuf.
*/
void
sbuf_finish(struct sbuf *s)
{
assert_sbuf_integrity(s);
assert_sbuf_state(s, 0);
s->s_buf[s->s_len] = '\0';
SBUF_CLEARFLAG(s, SBUF_OVERFLOWED);
SBUF_SETFLAG(s, SBUF_FINISHED);
}
/*
* Clear an sbuf and reset its position.
*/
void
sbuf_clear(struct sbuf *s)
{
assert_sbuf_integrity(s);
/* don't care if it's finished or not */
SBUF_CLEARFLAG(s, SBUF_FINISHED);
s->s_error = 0;
s->s_len = 0;
s->s_rec_off = 0;
s->s_sect_len = 0;
}
