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Diffstat (limited to 'src/dns/dns_strtype.c')
| -rw-r--r-- | src/dns/dns_strtype.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/dns/dns_strtype.c b/src/dns/dns_strtype.c new file mode 100644 index 0000000..70e59ac --- /dev/null +++ b/src/dns/dns_strtype.c @@ -0,0 +1,211 @@ +/*++ +/* NAME +/* dns_strtype 3 +/* SUMMARY +/* name service lookup type codes and printable forms +/* SYNOPSIS +/* #include <dns.h> +/* +/* const char *dns_strtype(code) +/* int code; +/* +/* int dns_type(strval) +/* const char *strval; +/* DESCRIPTION +/* dns_strtype() maps a name service lookup type to printable string. +/* The result is for read-only purposes, and unknown codes share a +/* common string buffer. +/* +/* dns_type() converts a name service lookup string value to a numeric +/* code. A null result means the code was not found. The input can be +/* in lower case, upper case or mixed case. +/* LICENSE +/* .ad +/* .fi +/* The Secure Mailer license must be distributed with this software. +/* AUTHOR(S) +/* Wietse Venema +/* IBM T.J. Watson Research +/* P.O. Box 704 +/* Yorktown Heights, NY 10598, USA +/*--*/ + +/* System library. */ + +#include <sys_defs.h> +#include <string.h> + +#ifdef STRCASECMP_IN_STRINGS_H +#include <strings.h> +#endif + +/* Utility library. */ + +#include <vstring.h> + +/* DNS library. */ + +#include "dns.h" + + /* + * Mapping from type code to printable string. Some names are possibly not + * defined on every platform, so I have #ifdef-ed them all just to be safe. + */ +struct dns_type_map { + unsigned type; + const char *text; +}; + +static struct dns_type_map dns_type_map[] = { +#ifdef T_A + T_A, "A", +#endif +#ifdef T_AAAA + T_AAAA, "AAAA", +#endif +#ifdef T_NS + T_NS, "NS", +#endif +#ifdef T_MD + T_MD, "MD", +#endif +#ifdef T_MF + T_MF, "MF", +#endif +#ifdef T_CNAME + T_CNAME, "CNAME", +#endif +#ifdef T_SOA + T_SOA, "SOA", +#endif +#ifdef T_MB + T_MB, "MB", +#endif +#ifdef T_MG + T_MG, "MG", +#endif +#ifdef T_MR + T_MR, "MR", +#endif +#ifdef T_NULL + T_NULL, "NULL", +#endif +#ifdef T_WKS + T_WKS, "WKS", +#endif +#ifdef T_PTR + T_PTR, "PTR", +#endif +#ifdef T_HINFO + T_HINFO, "HINFO", +#endif +#ifdef T_MINFO + T_MINFO, "MINFO", +#endif +#ifdef T_MX + T_MX, "MX", +#endif +#ifdef T_TXT + T_TXT, "TXT", +#endif +#ifdef T_RP + T_RP, "RP", +#endif +#ifdef T_AFSDB + T_AFSDB, "AFSDB", +#endif +#ifdef T_X25 + T_X25, "X25", +#endif +#ifdef T_ISDN + T_ISDN, "ISDN", +#endif +#ifdef T_RT + T_RT, "RT", +#endif +#ifdef T_NSAP + T_NSAP, "NSAP", +#endif +#ifdef T_NSAP_PTR + T_NSAP_PTR, "NSAP_PTR", +#endif +#ifdef T_SIG + T_SIG, "SIG", +#endif +#ifdef T_KEY + T_KEY, "KEY", +#endif +#ifdef T_PX + T_PX, "PX", +#endif +#ifdef T_GPOS + T_GPOS, "GPOS", +#endif +#ifdef T_AAAA + T_AAAA, "AAAA", +#endif +#ifdef T_LOC + T_LOC, "LOC", +#endif +#ifdef T_UINFO + T_UINFO, "UINFO", +#endif +#ifdef T_UID + T_UID, "UID", +#endif +#ifdef T_GID + T_GID, "GID", +#endif +#ifdef T_UNSPEC + T_UNSPEC, "UNSPEC", +#endif +#ifdef T_AXFR + T_AXFR, "AXFR", +#endif +#ifdef T_MAILB + T_MAILB, "MAILB", +#endif +#ifdef T_MAILA + T_MAILA, "MAILA", +#endif +#ifdef T_TLSA + T_TLSA, "TLSA", +#endif +#ifdef T_RRSIG + T_RRSIG, "RRSIG", +#endif +#ifdef T_DNAME + T_DNAME, "DNAME", +#endif +#ifdef T_ANY + T_ANY, "ANY", +#endif +}; + +/* dns_strtype - translate DNS query type to string */ + +const char *dns_strtype(unsigned type) +{ + static VSTRING *unknown = 0; + unsigned i; + + for (i = 0; i < sizeof(dns_type_map) / sizeof(dns_type_map[0]); i++) + if (dns_type_map[i].type == type) + return (dns_type_map[i].text); + if (unknown == 0) + unknown = vstring_alloc(sizeof("Unknown type XXXXXX")); + vstring_sprintf(unknown, "Unknown type %u", type); + return (vstring_str(unknown)); +} + +/* dns_type - translate string to DNS query type */ + +unsigned dns_type(const char *text) +{ + unsigned i; + + for (i = 0; i < sizeof(dns_type_map) / sizeof(dns_type_map[0]); i++) + if (strcasecmp(dns_type_map[i].text, text) == 0) + return (dns_type_map[i].type); + return (0); +} |