diff options
Diffstat (limited to 'contrib/bind9/lib/dns/name.c')
| -rw-r--r-- | contrib/bind9/lib/dns/name.c | 77 |
1 files changed, 73 insertions, 4 deletions
diff --git a/contrib/bind9/lib/dns/name.c b/contrib/bind9/lib/dns/name.c index 80864b8..f88f281 100644 --- a/contrib/bind9/lib/dns/name.c +++ b/contrib/bind9/lib/dns/name.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004-2008, 2010 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 2004-2011 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 1998-2003 Internet Software Consortium. * * Permission to use, copy, modify, and/or distribute this software for any @@ -15,7 +15,7 @@ * PERFORMANCE OF THIS SOFTWARE. */ -/* $Id: name.c,v 1.165.120.3 2010-07-09 05:15:05 each Exp $ */ +/* $Id: name.c,v 1.174 2011-01-13 04:59:25 tbox Exp $ */ /*! \file */ @@ -34,6 +34,7 @@ #include <isc/util.h> #include <dns/compress.h> +#include <dns/fixedname.h> #include <dns/name.h> #include <dns/result.h> @@ -1018,10 +1019,9 @@ dns_name_toregion(dns_name_t *name, isc_region_t *r) { DNS_NAME_TOREGION(name, r); } - isc_result_t dns_name_fromtext(dns_name_t *name, isc_buffer_t *source, - dns_name_t *origin, unsigned int options, + const dns_name_t *origin, unsigned int options, isc_buffer_t *target) { unsigned char *ndata, *label; @@ -2360,6 +2360,75 @@ dns_name_format(dns_name_t *name, char *cp, unsigned int size) { snprintf(cp, size, "<unknown>"); } +/* + * dns_name_tostring() -- similar to dns_name_format() but allocates its own + * memory. + */ +isc_result_t +dns_name_tostring(dns_name_t *name, char **target, isc_mem_t *mctx) { + isc_result_t result; + isc_buffer_t buf; + isc_region_t reg; + char *p, txt[DNS_NAME_FORMATSIZE]; + + REQUIRE(VALID_NAME(name)); + REQUIRE(target != NULL && *target == NULL); + + isc_buffer_init(&buf, txt, sizeof(txt)); + result = dns_name_totext(name, ISC_FALSE, &buf); + if (result != ISC_R_SUCCESS) + return (result); + + isc_buffer_usedregion(&buf, ®); + p = isc_mem_allocate(mctx, reg.length + 1); + memcpy(p, (char *) reg.base, (int) reg.length); + p[reg.length] = '\0'; + + *target = p; + return (ISC_R_SUCCESS); +} + +/* + * dns_name_fromstring() -- convert directly from a string to a name, + * allocating memory as needed + */ +isc_result_t +dns_name_fromstring(dns_name_t *target, const char *src, unsigned int options, + isc_mem_t *mctx) +{ + return (dns_name_fromstring2(target, src, dns_rootname, options, mctx)); +} + +isc_result_t +dns_name_fromstring2(dns_name_t *target, const char *src, + const dns_name_t *origin, unsigned int options, + isc_mem_t *mctx) +{ + isc_result_t result; + isc_buffer_t buf; + dns_fixedname_t fn; + dns_name_t *name; + + REQUIRE(src != NULL); + + isc_buffer_init(&buf, src, strlen(src)); + isc_buffer_add(&buf, strlen(src)); + if (BINDABLE(target) && target->buffer != NULL) + name = target; + else { + dns_fixedname_init(&fn); + name = dns_fixedname_name(&fn); + } + + result = dns_name_fromtext(name, &buf, origin, options, NULL); + if (result != ISC_R_SUCCESS) + return (result); + + if (name != target) + result = dns_name_dupwithoffsets(name, mctx, target); + return (result); +} + isc_result_t dns_name_copy(dns_name_t *source, dns_name_t *dest, isc_buffer_t *target) { unsigned char *ndata; |
