diff options
Diffstat (limited to 'dns.c')
| -rw-r--r-- | dns.c | 59 |
1 files changed, 31 insertions, 28 deletions
@@ -1,7 +1,7 @@ /* * Asterisk -- An open source telephony toolkit. * - * Copyright (C) 1999 - 2005 Thorsten Lockert + * Copyright (C) 1999 - 2006 Thorsten Lockert * * Written by Thorsten Lockert <tholo@trollphone.org> * @@ -44,40 +44,40 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$") #define MAX_SIZE 4096 typedef struct { - unsigned id :16; /* query identification number */ + unsigned id :16; /*!< query identification number */ #if __BYTE_ORDER == __BIG_ENDIAN /* fields in third byte */ - unsigned qr: 1; /* response flag */ - unsigned opcode: 4; /* purpose of message */ - unsigned aa: 1; /* authoritive answer */ - unsigned tc: 1; /* truncated message */ - unsigned rd: 1; /* recursion desired */ + unsigned qr: 1; /*!< response flag */ + unsigned opcode: 4; /*!< purpose of message */ + unsigned aa: 1; /*!< authoritive answer */ + unsigned tc: 1; /*!< truncated message */ + unsigned rd: 1; /*!< recursion desired */ /* fields in fourth byte */ - unsigned ra: 1; /* recursion available */ - unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ - unsigned ad: 1; /* authentic data from named */ - unsigned cd: 1; /* checking disabled by resolver */ - unsigned rcode :4; /* response code */ + unsigned ra: 1; /*!< recursion available */ + unsigned unused :1; /*!< unused bits (MBZ as of 4.9.3a3) */ + unsigned ad: 1; /*!< authentic data from named */ + unsigned cd: 1; /*!< checking disabled by resolver */ + unsigned rcode :4; /*!< response code */ #endif #if __BYTE_ORDER == __LITTLE_ENDIAN || __BYTE_ORDER == __PDP_ENDIAN /* fields in third byte */ - unsigned rd :1; /* recursion desired */ - unsigned tc :1; /* truncated message */ - unsigned aa :1; /* authoritive answer */ - unsigned opcode :4; /* purpose of message */ - unsigned qr :1; /* response flag */ + unsigned rd :1; /*!< recursion desired */ + unsigned tc :1; /*!< truncated message */ + unsigned aa :1; /*!< authoritive answer */ + unsigned opcode :4; /*!< purpose of message */ + unsigned qr :1; /*!< response flag */ /* fields in fourth byte */ - unsigned rcode :4; /* response code */ - unsigned cd: 1; /* checking disabled by resolver */ - unsigned ad: 1; /* authentic data from named */ - unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ - unsigned ra :1; /* recursion available */ + unsigned rcode :4; /*!< response code */ + unsigned cd: 1; /*!< checking disabled by resolver */ + unsigned ad: 1; /*!< authentic data from named */ + unsigned unused :1; /*!< unused bits (MBZ as of 4.9.3a3) */ + unsigned ra :1; /*!< recursion available */ #endif /* remaining bytes */ - unsigned qdcount :16; /* number of question entries */ - unsigned ancount :16; /* number of answer entries */ - unsigned nscount :16; /* number of authority entries */ - unsigned arcount :16; /* number of resource entries */ + unsigned qdcount :16; /*!< number of question entries */ + unsigned ancount :16; /*!< number of answer entries */ + unsigned nscount :16; /*!< number of authority entries */ + unsigned arcount :16; /*!< number of resource entries */ } dns_HEADER; struct dn_answer { @@ -110,7 +110,7 @@ static int skip_name(char *s, int len) return x; } -/*--- dns_parse_answer: Parse DNS lookup result, call callback */ +/*! \brief Parse DNS lookup result, call callback */ static int dns_parse_answer(void *context, int class, int type, char *answer, int len, int (*callback)(void *context, char *answer, int len, char *fullanswer)) @@ -182,7 +182,10 @@ AST_MUTEX_DEFINE_STATIC(res_lock); #endif #endif -/*--- ast_search_dns: Lookup record in DNS */ +/*! \brief Lookup record in DNS +\note Asterisk DNS is synchronus at this time. This means that if your DNS does +not work properly, Asterisk might not start properly or a channel may lock. +*/ int ast_search_dns(void *context, const char *dname, int class, int type, int (*callback)(void *context, char *answer, int len, char *fullanswer)) |