static void parse_time(pj_scanner *scanner, pjmedia_sdp_session *ses,
parse_context *ctx)
{
pj_str_t str;
ctx->last_error = PJMEDIA_SDP_EINTIME;
/* check equal sign */
if (*(scanner->curptr+1) != '=') {
on_scanner_error(scanner);
return;
}
/* t= */
pj_scan_advance_n(scanner, 2, SKIP_WS);
/* start time */
pj_scan_get_until_ch(scanner, ' ', &str);
ses->time.start = pj_strtoul(&str);
pj_scan_get_char(scanner);
/* stop time */
pj_scan_get_until_chr(scanner, " \t\r", &str);
ses->time.stop = pj_strtoul(&str);
/* We've got what we're looking for, skip anything until newline */
pj_scan_skip_line(scanner);
}
static void parse_media(pj_scanner *scanner, pjmedia_sdp_media *med,
parse_context *ctx)
{
pj_str_t str;
ctx->last_error = PJMEDIA_SDP_EINMEDIA;
/* check the equal sign */
if (*(scanner->curptr+1) != '=') {
on_scanner_error(scanner);
return;
}
/* m= */
pj_scan_advance_n(scanner, 2, SKIP_WS);
/* type */
pj_scan_get_until_ch(scanner, ' ', &med->desc.media);
pj_scan_get_char(scanner);
/* port */
pj_scan_get(scanner, &cs_token, &str);
med->desc.port = (unsigned short)pj_strtoul(&str);
if (*scanner->curptr == '/') {
/* port count */
pj_scan_get_char(scanner);
pj_scan_get(scanner, &cs_token, &str);
med->desc.port_count = pj_strtoul(&str);
} else {
med->desc.port_count = 0;
}
if (pj_scan_get_char(scanner) != ' ') {
PJ_THROW(SYNTAX_ERROR);
}
/* transport */
pj_scan_get_until_ch(scanner, ' ', &med->desc.transport);
/* format list */
med->desc.fmt_count = 0;
while (*scanner->curptr == ' ') {
pj_scan_get_char(scanner);
/* Check again for the end of the line */
if ((*scanner->curptr == '\r') || (*scanner->curptr == '\n'))
break;
pj_scan_get(scanner, &cs_token, &med->desc.fmt[med->desc.fmt_count++]);
}
/* We've got what we're looking for, skip anything until newline */
pj_scan_skip_line(scanner);
}
static pjmedia_sdp_attr *parse_attr( pj_pool_t *pool, pj_scanner *scanner,
parse_context *ctx)
{
pjmedia_sdp_attr *attr;
ctx->last_error = PJMEDIA_SDP_EINATTR;
attr = PJ_POOL_ALLOC_T(pool, pjmedia_sdp_attr);
/* check equal sign */
if (*(scanner->curptr+1) != '=') {
on_scanner_error(scanner);
return NULL;
}
/* skip a= */
pj_scan_advance_n(scanner, 2, SKIP_WS);
/* get attr name. */
pj_scan_get(scanner, &cs_token, &attr->name);
if (*scanner->curptr && *scanner->curptr != '\r' &&
*scanner->curptr != '\n')
{
/* skip ':' if present. */
if (*scanner->curptr == ':')
pj_scan_get_char(scanner);
/* get value */
if (*scanner->curptr != '\r' && *scanner->curptr != '\n') {
pj_scan_get_until_chr(scanner, "\r\n", &attr->value);
} else {
attr->value.ptr = NULL;
attr->value.slen = 0;
}
} else {
attr->value.ptr = NULL;
attr->value.slen = 0;
}
/* We've got what we're looking for, skip anything until newline */
pj_scan_skip_line(scanner);
return attr;
}
static void parse_origin(pj_scanner *scanner, pjmedia_sdp_session *ses,
parse_context *ctx)
{
pj_str_t str;
ctx->last_error = PJMEDIA_SDP_EINORIGIN;
/* check equal sign */
if (*(scanner->curptr+1) != '=') {
on_scanner_error(scanner);
return;
}
/* o= */
pj_scan_advance_n(scanner, 2, SKIP_WS);
/* username. */
pj_scan_get_until_ch(scanner, ' ', &ses->origin.user);
pj_scan_get_char(scanner);
/* id */
pj_scan_get_until_ch(scanner, ' ', &str);
ses->origin.id = pj_strtoul(&str);
pj_scan_get_char(scanner);
/* version */
pj_scan_get_until_ch(scanner, ' ', &str);
ses->origin.version = pj_strtoul(&str);
pj_scan_get_char(scanner);
/* network-type */
pj_scan_get_until_ch(scanner, ' ', &ses->origin.net_type);
pj_scan_get_char(scanner);
/* addr-type */
pj_scan_get_until_ch(scanner, ' ', &ses->origin.addr_type);
pj_scan_get_char(scanner);
/* address */
pj_scan_get_until_chr(scanner, " \t\r", &ses->origin.addr);
/* We've got what we're looking for, skip anything until newline */
pj_scan_skip_line(scanner);
}
static void parse_version(pj_scanner *scanner, parse_context *ctx)
{
ctx->last_error = PJMEDIA_SDP_EINVER;
/* check equal sign */
if (*(scanner->curptr+1) != '=') {
on_scanner_error(scanner);
return;
}
/* check version is 0 */
if (*(scanner->curptr+2) != '0') {
on_scanner_error(scanner);
return;
}
/* We've got what we're looking for, skip anything until newline */
pj_scan_skip_line(scanner);
}
static void parse_bandwidth_info(pj_scanner *scanner, pjmedia_sdp_bandw *bandw,
parse_context *ctx)
{
pj_str_t str;
ctx->last_error = PJMEDIA_SDP_EINBANDW;
/* b= */
pj_scan_advance_n(scanner, 2, SKIP_WS);
/* modifier */
pj_scan_get_until_ch(scanner, ':', &bandw->modifier);
pj_scan_get_char(scanner);
/* value */
pj_scan_get_until_chr(scanner, " \t\r\n", &str);
bandw->value = pj_strtoul(&str);
/* We've got what we're looking for, skip anything until newline */
pj_scan_skip_line(scanner);
}
static void parse_connection_info(pj_scanner *scanner, pjmedia_sdp_conn *conn,
parse_context *ctx)
{
ctx->last_error = PJMEDIA_SDP_EINCONN;
/* c= */
pj_scan_advance_n(scanner, 2, SKIP_WS);
/* network-type */
pj_scan_get_until_ch(scanner, ' ', &conn->net_type);
pj_scan_get_char(scanner);
/* addr-type */
pj_scan_get_until_ch(scanner, ' ', &conn->addr_type);
pj_scan_get_char(scanner);
/* address. */
pj_scan_get_until_chr(scanner, " \t\r", &conn->addr);
/* We've got what we're looking for, skip anything until newline */
pj_scan_skip_line(scanner);
}
