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author | Gilles Chehade <gilles@poolp.org> | 2020-01-09 15:59:23 +0100 |
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committer | Gilles Chehade <gilles@poolp.org> | 2020-01-09 15:59:23 +0100 |
commit | a7c4e92b818e03f9cf24047b8f16981fd8a81d03 (patch) | |
tree | 412874752a539957907ceec213f3d063f3e21d5f | |
parent | if asr is installed AND we're not on OpenBSD ... add -lasr (diff) | |
download | OpenSMTPD-a7c4e92b818e03f9cf24047b8f16981fd8a81d03.tar.xz OpenSMTPD-a7c4e92b818e03f9cf24047b8f16981fd8a81d03.zip |
res_hnok needed for musl
-rw-r--r-- | openbsd-compat/Makefile.am | 4 | ||||
-rw-r--r-- | openbsd-compat/res_hnok.c | 169 |
2 files changed, 173 insertions, 0 deletions
diff --git a/openbsd-compat/Makefile.am b/openbsd-compat/Makefile.am index d08fbed8..db1e93fa 100644 --- a/openbsd-compat/Makefile.am +++ b/openbsd-compat/Makefile.am @@ -124,6 +124,10 @@ if NEED_RECALLOCARRAY libopenbsd_a_SOURCES += recallocarray.c endif +if NEED_RES_HNOK +libopenbsd_a_SOURCES += res_hnok.c +endif + if NEED_RES_RANDOMID libopenbsd_a_SOURCES += res_randomid.c endif diff --git a/openbsd-compat/res_hnok.c b/openbsd-compat/res_hnok.c new file mode 100644 index 00000000..a4b54baf --- /dev/null +++ b/openbsd-compat/res_hnok.c @@ -0,0 +1,169 @@ +/* $OpenBSD: res_comp.c,v 1.14 2008/04/16 22:35:23 deraadt Exp $ */ + +/* + * ++Copyright++ 1985, 1993 + * - + * Copyright (c) 1985, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * - + * Portions Copyright (c) 1993 by Digital Equipment Corporation. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies, and that + * the name of Digital Equipment Corporation not be used in advertising or + * publicity pertaining to distribution of the document or software without + * specific, written prior permission. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL + * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT + * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL + * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR + * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS + * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * - + * --Copyright-- + */ + +/* OPENBSD ORIGINAL: lib/libc/net/res_comp.c */ + +#include "includes.h" + +/* + * Verify that a domain name uses an acceptable character set. + */ + +/* + * Note the conspicuous absence of ctype macros in these definitions. On + * non-ASCII hosts, we can't depend on string literals or ctype macros to + * tell us anything about network-format data. The rest of the BIND system + * is not careful about this, but for some reason, we're doing it right here. + */ +#define PERIOD 0x2e +#define hyphenchar(c) ((c) == 0x2d) +#define bslashchar(c) ((c) == 0x5c) +#define underscorechar(c) ((c) == 0x5f) +#define periodchar(c) ((c) == PERIOD) +#define asterchar(c) ((c) == 0x2a) +#define alphachar(c) (((c) >= 0x41 && (c) <= 0x5a) \ + || ((c) >= 0x61 && (c) <= 0x7a)) +#define digitchar(c) ((c) >= 0x30 && (c) <= 0x39) + +#define borderchar(c) (alphachar(c) || digitchar(c)) +#define middlechar(c) (borderchar(c) || hyphenchar(c) || underscorechar(c)) +#define domainchar(c) ((c) > 0x20 && (c) < 0x7f) + +int +res_hnok(const char *dn) +{ + int pch = PERIOD, ch = *dn++; + + while (ch != '\0') { + int nch = *dn++; + + if (periodchar(ch)) { + ; + } else if (periodchar(pch)) { + if (!borderchar(ch)) + return (0); + } else if (periodchar(nch) || nch == '\0') { + if (!borderchar(ch)) + return (0); + } else { + if (!middlechar(ch)) + return (0); + } + pch = ch, ch = nch; + } + return (1); +} + +#if 0 + +/* + * hostname-like (A, MX, WKS) owners can have "*" as their first label + * but must otherwise be as a host name. + */ +int +res_ownok(const char *dn) +{ + if (asterchar(dn[0])) { + if (periodchar(dn[1])) + return (res_hnok(dn+2)); + if (dn[1] == '\0') + return (1); + } + return (res_hnok(dn)); +} + +/* + * SOA RNAMEs and RP RNAMEs can have any printable character in their first + * label, but the rest of the name has to look like a host name. + */ +int +res_mailok(const char *dn) +{ + int ch, escaped = 0; + + /* "." is a valid missing representation */ + if (*dn == '\0') + return(1); + + /* otherwise <label>.<hostname> */ + while ((ch = *dn++) != '\0') { + if (!domainchar(ch)) + return (0); + if (!escaped && periodchar(ch)) + break; + if (escaped) + escaped = 0; + else if (bslashchar(ch)) + escaped = 1; + } + if (periodchar(ch)) + return (res_hnok(dn)); + return(0); +} + +/* + * This function is quite liberal, since RFC 1034's character sets are only + * recommendations. + */ +int +res_dnok(const char *dn) +{ + int ch; + + while ((ch = *dn++) != '\0') + if (!domainchar(ch)) + return (0); + return (1); +} + +#endif /* if 0 */ |