New subject: git:jason.penton/ims_ro_interface: lib/ims: added function to get p-charging-vector

12 Mar 2013

Module: sip-router
Branch: jason.penton/ims_ro_interface
Commit: 9e7dd6ffd0467e7c1f8f60ea20204e87b472bd14
URL:    http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=9e7dd6ff...
Author: Jason Penton jason.penton@smilecoms.com
Committer: Jason Penton jason.penton@smilecoms.com
Date:   Tue Mar 12 13:20:34 2013 +0200
lib/ims: added function to get p-charging-vector
---
lib/ims/ims_getters.c |  119 +++++++++++++++++++++++++++++++++++++++++++++++++
 lib/ims/ims_getters.h |   16 +++++++
 2 files changed, 135 insertions(+), 0 deletions(-)

diff --git a/lib/ims/ims_getters.c b/lib/ims/ims_getters.c
index d1c84c7..94efe20 100644
--- a/lib/ims/ims_getters.c
+++ b/lib/ims/ims_getters.c
@@ -1399,3 +1399,122 @@ int cscf_get_cseq(struct sip_msg *msg,struct hdr_field **hr)
    return nr;
 }
+/**
+ * Returns the first header structure for a given header name.
+ * @param msg - the SIP message to look into
+ * @param header_name - the name of the header to search for
+ * @returns the hdr_field on success or NULL if not found
+ */
+struct hdr_field* cscf_get_header(struct sip_msg * msg, str header_name) {
+	struct hdr_field *h;
+	if (parse_headers(msg, HDR_EOH_F, 0) < 0) {
+		LM_ERR("cscf_get_path: error parsing headers\n");
+		return NULL ;
+	}
+	h = msg->headers;
+	while (h) {
+		if (h->name.len == header_name.len
+				&& strncasecmp(h->name.s, header_name.s, header_name.len) == 0)
+			break;
+		h = h->next;
+	}
+	return h;
+}
+
+
+static str p_charging_vector = {"P-Charging-Vector", 17};
+
+int cscf_get_p_charging_vector(struct sip_msg *msg, str * icid, str * orig_ioi,
+		str * term_ioi) {
+	struct hdr_field* header = 0;
+	str header_body = { 0, 0 };
+	char * p;
+	int index;
+	str temp = { 0, 0 };
+
+	LM_DBG("get_p_charging_vector\n");
+	header = cscf_get_header(msg, p_charging_vector);
+	if (!header) {
+		LM_DBG("no header %.*s was found\n", p_charging_vector.len, p_charging_vector.s);
+		return 0;
+	}
+	if (!header->body.s || !header->body.len)
+		return 0;
+
+	str_dup(header_body, header->body, pkg);
+
+	LM_DBG("p_charging_vector body is %.*s\n", header_body.len, header_body.s);
+
+	p = strtok(header_body.s, " ;:\r\t\n"=");
+	loop: if (p > (header_body.s + header_body.len))
+		return 1;
+
+	if (strncmp(p, "icid-value", 10) == 0) {
+		p = strtok(NULL, " ;:\r\t\n"=");
+		if (p > (header_body.s + header_body.len)) {
+			LM_ERR("cscf_get_p_charging_vector: no value for icid\n");
+			return 0;
+		}
+		temp.s = p;
+		temp.len = 0;
+		while (*p != '"') {
+			temp.len = temp.len + 1;
+			p++;
+		}
+		icid->len = temp.len;
+		index = temp.s - header_body.s;
+		LM_DBG("icid len %i, index %i\n", temp.len, index);
+		icid->s = header->body.s + index;
+		LM_DBG("icid is %.*s\n", icid->len, icid->s);
+		p = strtok(NULL, " ;:\r\t\n"=");
+		goto loop;
+	} else if (strncmp(p, "orig-ioi", 8) == 0) {
+
+		p = strtok(NULL, " ;:\r\t\n"=");
+		if (p > (header_body.s + header_body.len)) {
+			LM_ERR("cscf_get_p_charging_vector: no value for icid\n");
+			return 0;
+		}
+		temp.s = p;
+		temp.len = 0;
+		while (*p != '"') {
+			temp.len = temp.len + 1;
+			p++;
+		}
+		orig_ioi->len = temp.len;
+		index = temp.s - header_body.s;
+		LM_DBG("orig ioi len %i, index %i\n", temp.len, index);
+		orig_ioi->s = header->body.s + index;
+		LM_DBG("orig_ioi is %.*s\n", orig_ioi->len, orig_ioi->s);
+		p = strtok(NULL, " ;:\r\t\n"=");
+		goto loop;
+	} else if (strncmp(p, "term-ioi", 8) == 0) {
+
+		p = strtok(NULL, " ;:\r\t\n"=");
+		if (p > (header_body.s + header_body.len)) {
+			LM_ERR("cscf_get_p_charging_vector: no value for icid\n");
+			return 0;
+		}
+		temp.s = p;
+		temp.len = 0;
+		while (*p != '"') {
+			temp.len = temp.len + 1;
+			p++;
+		}
+		term_ioi->len = temp.len;
+		term_ioi->s = header->body.s + (temp.s - header_body.s);
+		p = strtok(NULL, " ;:\r\t\n"=");
+		goto loop;
+	} else {
+		p = strtok(NULL, " ;:\r\t\n"=");
+		goto loop;
+	}
+
+	LM_DBG("end\n");
+	str_free(header_body, pkg);
+	return 1;
+	out_of_memory:
+	LM_ERR("cscf_get_p_charging_vector:out of pkg memory\n");
+	return 0;
+}
+
diff --git a/lib/ims/ims_getters.h b/lib/ims/ims_getters.h
index a36e0f3..38c0dd9 100644
--- a/lib/ims/ims_getters.h
+++ b/lib/ims/ims_getters.h
@@ -410,5 +410,21 @@ int cscf_add_header_rpl(struct sip_msg *msg, str *hdr);
  */
 int cscf_get_cseq(struct sip_msg *msg,struct hdr_field **hr);
+/**
+ * Returns the first header structure for a given header name.
+ * @param msg - the SIP message to look into
+ * @param header_name - the name of the header to search for
+ * @returns the hdr_field on success or NULL if not found
+ */
+struct hdr_field* cscf_get_header(struct sip_msg * msg, str header_name);
+
+/**
+ * Retrieves the P-Charging-Vector header information
+ * P-Charging-Vector:
+ * @param msg - the SIP message to retrieve from
+ * @returns #CSCF_RETURN_TRUE if ok or #CSCF_RETURN_FALSE on error
+ */
+int cscf_get_p_charging_vector(struct sip_msg *msg, str * icid, str * orig_ioi, str * term_ioi);
+
 #endif

    