res_pjsip: Enable PJSIP DNS client support.

This change enables DNS client support within PJSIP. System
nameservers are automatically discovered using res_init or
res_ninit. If this fails then PJSIP will resort to using
gethostbyname for resolution.

By enabling this support we gain SRV support, failover, and
weight support.

(closes issue ASTERISK-23435)
Reported by: Matt Jordan

Review: https://reviewboard.asterisk.org/r/3343/
........

Merged revisions 410795 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@410796 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2014-03-17 22:54:32 +00:00
parent 932fb5a6e2
commit cc40bf5317
6 changed files with 130 additions and 0 deletions

View File

@@ -36,4 +36,7 @@
int ast_search_dns(void *context, const char *dname, int class, int type,
int (*callback)(void *context, unsigned char *answer, int len, unsigned char *fullanswer));
/*! \brief Retrieve the configured nameservers of the system */
struct ao2_container *ast_dns_get_nameservers(void);
#endif /* _ASTERISK_DNS_H */