ims-volte-vowifi
/
strongswan
9
0
Fork 0
Code Pull Requests Releases Activity

Implemented a generic payload field lookup function

This commit is contained in:
Martin Willi 2010-11-24 16:52:49 +01:00
parent bf029696c6
commit e662d62a76
2 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/libcharon/encoding/payloads/payload.c
View File

@ -196,3 +196,23 @@ bool payload_is_known(payload_type_t type)
#endif
return FALSE;
}
/**
* See header.
*/
void* payload_get_field(payload_t *payload, encoding_type_t type, u_int skip)
{
encoding_rule_t *rule;
size_t count;
int i;
payload->get_encoding_rules(payload, &rule, &count);
for (i = 0; i < count; i++)
{
if (rule[i].type == type && skip-- == 0)
{
return ((char*)payload) + rule[i].offset;
}
}
return NULL;
}

10
src/libcharon/encoding/payloads/payload.h
View File

@ -268,4 +268,14 @@ payload_t *payload_create(payload_type_t type);
*/
bool payload_is_known(payload_type_t type);
/**
* Get the value field in a payload using encoding rules.
*
* @param payload payload to look up a field
* @param type encoding rule type to look up
* @param skip number rules of type to skip, 0 to get first
* @return type specific value pointer, NULL if not found
*/
void* payload_get_field(payload_t *payload, encoding_type_t type, u_int skip);
#endif /** PAYLOAD_H_ @}*/