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@@ -0,0 +1,95 @@
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+/*
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+ * $Id$
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+ *
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+ * Copyright (C) 2007 iptelorg GmbH
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+ *
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+ * This file is part of ser, a free SIP server.
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+ *
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+ * ser is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version
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+ *
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+ * For a license to use the ser software under conditions
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+ * other than those described here, or to purchase support for this
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+ * software, please contact iptel.org by e-mail at the following addresses:
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+ * [email protected]
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+ *
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+ * ser is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+ *
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+ * History:
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+ * --------
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+ * 2007-07-27 created by andrei
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+ */
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+
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+
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+#include "../comp_defs.h"
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+#include "parse_retry_after.h"
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+#include "parser_f.h" /* eat_space_end and so on */
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+#include "parse_def.h"
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+#include "../dprint.h"
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+#include "../mem/mem.h"
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+
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+/* Parse the Retry-after header field */
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+char* parse_retry_after(char *buf, char* end, unsigned* after, int* err)
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+{
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+ char *t;
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+ int i;
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+ unsigned val;
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+
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+ val=0;
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+ t=buf;
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+
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+ t=eat_lws_end(t, end);
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+ if (t>=end) goto error;
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+ for (i=0; t<end; i++,t++){
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+ if ((*t >= '0') && (*t <= '9')){
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+ val=val*10+(*t-'0');
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+ }else{
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+ switch(*t){
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+ /* for now we don't care about retry-after params or comment*/
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+ case ' ':
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+ case '\t':
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+ case ';':
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+ case '\r':
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+ case '\n':
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+ goto found;
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+ default:
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+ /* invalid char */
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+ goto error;
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+ }
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+ }
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+ }
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+ goto error_nocrlf; /* end reached without encountering cr or lf */
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+found:
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+ if (i>10 || i==0) /* too many or too few digits */
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+ goto error;
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+ *after=val;
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+ /* find the end of header */
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+ for (; t<end; t++){
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+ if (*t=='\n'){
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+ if (((t+1)<end) && (*(t+1)=='\r'))
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+ t++;
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+ if (((t+1)<end) && (*(t+1)==' ' || *(t+1)=='\t')){
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+ t++;
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+ continue; /* line folding ... */
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+ }
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+ *err=0;
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+ return t+1;
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+ }
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+ }
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+error_nocrlf:
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+ LOG(L_ERR, "ERROR: parse_retry_after: strange EoHF\n");
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+ goto error;
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+error:
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+ LOG(L_ERR, "ERROR: parse_retry_after: bad Retry-After header \n");
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+ *err=1;
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+ return t;
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+}
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Andrei Pelinescu-Onciul