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bind
bind-99-libidn.patch
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File bind-99-libidn.patch of Package bind
diff --git a/bin/dig/Makefile.in b/bin/dig/Makefile.in index bd219c5..f71685b 100644 --- a/bin/dig/Makefile.in +++ b/bin/dig/Makefile.in @@ -38,10 +38,10 @@ DEPLIBS = ${DNSDEPLIBS} ${BIND9DEPLIBS} ${ISCDEPLIBS} \ ${ISCCFGDEPLIBS} ${LWRESDEPLIBS} LIBS = ${LWRESLIBS} ${BIND9LIBS} ${ISCCFGLIBS} \ - ${ISCLIBS} @IDNLIBS@ @LIBS@ + ${ISCLIBS} @IDNLIBS@ @LIBS@ -lidn NOSYMLIBS = ${LWRESLIBS} ${BIND9LIBS} ${ISCCFGLIBS} \ - ${ISCNOSYMLIBS} @IDNLIBS@ @LIBS@ + ${ISCNOSYMLIBS} @IDNLIBS@ @LIBS@ -lidn SUBDIRS = @@ -59,6 +59,8 @@ HTMLPAGES = dig.html host.html nslookup.html MANOBJS = ${MANPAGES} ${HTMLPAGES} +EXT_CFLAGS = -DWITH_LIBIDN + @BIND9_MAKE_RULES@ dig@EXEEXT@: dig.@O@ dighost.@O@ ${UOBJS} ${DEPLIBS} diff --git a/bin/dig/dig.docbook b/bin/dig/dig.docbook index 7a7e8e4..b36047f 100644 --- a/bin/dig/dig.docbook +++ b/bin/dig/dig.docbook @@ -1251,8 +1251,8 @@ dig +qr www.isc.org any -x 127.0.0.1 isc.org ns +noqr <command>dig</command> appropriately converts character encoding of domain name before sending a request to DNS server or displaying a reply from the server. - If you'd like to turn off the IDN support for some reason, defines - the <envar>IDN_DISABLE</envar> environment variable. + If you'd like to turn off the IDN support for some reason, define + the <envar>CHARSET=ASCII</envar> environment variable. The IDN support is disabled if the variable is set when <command>dig</command> runs. </para> diff --git a/bin/dig/dighost.c b/bin/dig/dighost.c index 1f8bcf2..f657c30 100644 --- a/bin/dig/dighost.c +++ b/bin/dig/dighost.c @@ -33,6 +33,11 @@ #include <idn/api.h> #endif +#ifdef WITH_LIBIDN +#include <stringprep.h> +#include <idna.h> +#endif + #include <dns/byaddr.h> #ifdef DIG_SIGCHASE #include <dns/callbacks.h> @@ -158,6 +163,14 @@ static void idn_check_result(idn_result_t r, const char *msg); int idnoptions = 0; #endif +#ifdef WITH_LIBIDN +static isc_result_t libidn_locale_to_utf8 (const char* from, char *to); +static isc_result_t libidn_utf8_to_ascii (const char* from, char *to); +static isc_result_t output_filter (isc_buffer_t *buffer, + unsigned int used_org, + isc_boolean_t absolute); +#endif + isc_socket_t *keep = NULL; isc_sockaddr_t keepaddr; @@ -1448,8 +1461,15 @@ setup_system(isc_boolean_t ipv4only, isc_boolean_t ipv6only) { #ifdef WITH_IDN initialize_idn(); + +#endif +#ifdef WITH_LIBIDN + result = dns_name_settotextfilter(output_filter); + check_result(result, "dns_name_settotextfilter"); +#ifdef HAVE_SETLOCALE + setlocale (LC_ALL, ""); +#endif #endif - if (keyfile[0] != 0) setup_file_key(); else if (keysecret[0] != 0) @@ -2231,8 +2251,11 @@ setup_lookup(dig_lookup_t *lookup) { idn_result_t mr; char utf8_textname[MXNAME], utf8_origin[MXNAME], idn_textname[MXNAME]; #endif +#ifdef WITH_LIBIDN + char utf8_str[MXNAME], utf8_name[MXNAME], ascii_name[MXNAME]; +#endif -#ifdef WITH_IDN +#if defined (WITH_IDN) || defined (WITH_LIBIDN) result = dns_name_settotextfilter(lookup->idnout ? output_filter : NULL); check_result(result, "dns_name_settotextfilter"); @@ -2274,6 +2297,14 @@ setup_lookup(dig_lookup_t *lookup) { mr = idn_encodename(IDN_LOCALCONV | IDN_DELIMMAP, lookup->textname, utf8_textname, sizeof(utf8_textname)); idn_check_result(mr, "convert textname to UTF-8"); +#elif defined (WITH_LIBIDN) + result = libidn_locale_to_utf8 (lookup->textname, utf8_str); + check_result (result, "convert textname to UTF-8"); + len = strlen (utf8_str); + if (len < MXNAME) + (void) strcpy (utf8_name, utf8_str); + else + fatal ("Too long name"); #endif /* @@ -2286,15 +2317,11 @@ setup_lookup(dig_lookup_t *lookup) { if (lookup->new_search) { #ifdef WITH_IDN if ((count_dots(utf8_textname) >= ndots) || !usesearch) { - lookup->origin = NULL; /* Force abs lookup */ - lookup->done_as_is = ISC_TRUE; - lookup->need_search = usesearch; - } else if (lookup->origin == NULL && usesearch) { - lookup->origin = ISC_LIST_HEAD(search_list); - lookup->need_search = ISC_FALSE; - } +#elif defined (WITH_LIBIDN) + if ((count_dots(utf8_name) >= ndots) || !usesearch) { #else if ((count_dots(lookup->textname) >= ndots) || !usesearch) { +#endif lookup->origin = NULL; /* Force abs lookup */ lookup->done_as_is = ISC_TRUE; lookup->need_search = usesearch; @@ -2302,7 +2329,6 @@ setup_lookup(dig_lookup_t *lookup) { lookup->origin = ISC_LIST_HEAD(search_list); lookup->need_search = ISC_FALSE; } -#endif } #ifdef WITH_IDN @@ -2319,6 +2345,20 @@ setup_lookup(dig_lookup_t *lookup) { IDN_IDNCONV | IDN_LENCHECK, utf8_textname, idn_textname, sizeof(idn_textname)); idn_check_result(mr, "convert UTF-8 textname to IDN encoding"); +#elif defined (WITH_LIBIDN) + if (lookup->origin != NULL) { + result = libidn_locale_to_utf8 (lookup->origin->origin, utf8_str); + check_result (result, "convert origin to UTF-8"); + if (len > 0 && utf8_name[len - 1] != '.') { + utf8_name[len++] = '.'; + if (len + strlen (utf8_str) < MXNAME) + (void) strcpy (utf8_name + len, utf8_str); + else + fatal ("Too long name + origin"); + } + } + + result = libidn_utf8_to_ascii (utf8_name, ascii_name); #else if (lookup->origin != NULL) { debug("trying origin %s", lookup->origin->origin); @@ -2389,6 +2429,13 @@ setup_lookup(dig_lookup_t *lookup) { result = dns_name_fromtext(lookup->name, &b, dns_rootname, 0, &lookup->namebuf); +#elif defined (WITH_LIBIDN) + len = strlen (ascii_name); + isc_buffer_init(&b, ascii_name, len); + isc_buffer_add(&b, len); + result = dns_name_fromtext(lookup->name, &b, + dns_rootname, 0, + &lookup->namebuf); #else len = (unsigned int) strlen(lookup->textname); isc_buffer_init(&b, lookup->textname, len); @@ -4377,7 +4424,7 @@ destroy_libs(void) { void * ptr; dig_message_t *chase_msg; #endif -#ifdef WITH_IDN +#if defined (WITH_IDN) || defined (WITH_LIBIDN) isc_result_t result; #endif @@ -4418,6 +4465,10 @@ destroy_libs(void) { result = dns_name_settotextfilter(NULL); check_result(result, "dns_name_settotextfilter"); #endif +#ifdef WITH_LIBIDN + result = dns_name_settotextfilter (NULL); + check_result(result, "clearing dns_name_settotextfilter"); +#endif dns_name_destroy(); if (commctx != NULL) { @@ -4603,6 +4654,97 @@ idn_check_result(idn_result_t r, const char *msg) { } } #endif /* WITH_IDN */ +#ifdef WITH_LIBIDN +static isc_result_t +libidn_locale_to_utf8 (const char *from, char *to) { + char *utf8_str; + + debug ("libidn_locale_to_utf8"); + utf8_str = stringprep_locale_to_utf8 (from); + if (utf8_str != NULL) { + (void) strcpy (to, utf8_str); + free (utf8_str); + return ISC_R_SUCCESS; + } + + debug ("libidn_locale_to_utf8: failure"); + return ISC_R_FAILURE; +} +static isc_result_t +libidn_utf8_to_ascii (const char *from, char *to) { + char *ascii; + int iresult; + + debug ("libidn_utf8_to_ascii"); + iresult = idna_to_ascii_8z (from, &ascii, 0); + if (iresult != IDNA_SUCCESS) { + debug ("idna_to_ascii_8z: %s", idna_strerror (iresult)); + return ISC_R_FAILURE; + } + + (void) strcpy (to, ascii); + free (ascii); + return ISC_R_SUCCESS; +} + +static isc_result_t +output_filter (isc_buffer_t *buffer, unsigned int used_org, + isc_boolean_t absolute) { + + char tmp1[MXNAME], *tmp2; + size_t fromlen, tolen; + isc_boolean_t end_with_dot; + int iresult; + + debug ("output_filter"); + + fromlen = isc_buffer_usedlength (buffer) - used_org; + if (fromlen >= MXNAME) + return ISC_R_SUCCESS; + memcpy (tmp1, (char *) isc_buffer_base (buffer) + used_org, fromlen); + end_with_dot = (tmp1[fromlen - 1] == '.') ? ISC_TRUE : ISC_FALSE; + if (absolute && !end_with_dot) { + fromlen++; + if (fromlen >= MXNAME) + return ISC_R_SUCCESS; + tmp1[fromlen - 1] = '.'; + } + tmp1[fromlen] = '\0'; + + iresult = idna_to_unicode_8z8z (tmp1, &tmp2, 0); + if (iresult != IDNA_SUCCESS) { + debug ("output_filter: %s", idna_strerror (iresult)); + return ISC_R_SUCCESS; + } + + (void) strcpy (tmp1, tmp2); + free (tmp2); + + tmp2 = stringprep_utf8_to_locale (tmp1); + if (tmp2 == NULL) { + debug ("output_filter: stringprep_utf8_to_locale failed"); + return ISC_R_SUCCESS; + } + + (void) strcpy (tmp1, tmp2); + free (tmp2); + + tolen = strlen (tmp1); + if (absolute && !end_with_dot && tmp1[tolen - 1] == '.') + tolen--; + + if (isc_buffer_length (buffer) < used_org + tolen) + return ISC_R_NOSPACE; + + debug ("%s", tmp1); + + isc_buffer_subtract (buffer, isc_buffer_usedlength (buffer) - used_org); + memcpy (isc_buffer_used (buffer), tmp1, tolen); + isc_buffer_add (buffer, tolen); + + return ISC_R_SUCCESS; +} +#endif /* WITH_LIBIDN*/ #ifdef DIG_SIGCHASE void
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