diff options
Diffstat (limited to 'resolv/ns_name_uncompress.c')
-rw-r--r-- | resolv/ns_name_uncompress.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/resolv/ns_name_uncompress.c b/resolv/ns_name_uncompress.c new file mode 100644 index 0000000..95ecbe3 --- /dev/null +++ b/resolv/ns_name_uncompress.c @@ -0,0 +1,45 @@ +/* Expand compressed domain name to presentation format. + * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") + * Copyright (c) 1996,1999 by Internet Software Consortium. + * + * 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. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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. + */ + +#include <arpa/nameser.h> +#include <shlib-compat.h> + +/* Expand compressed domain name to presentation format. Returns the + number of bytes read out of `src', or -1 (with errno set). The + root domain is returned as ".", not "". */ +int +___ns_name_uncompress (const unsigned char *msg, const unsigned char *eom, + const unsigned char *src, char *dst, size_t dstsiz) +{ + unsigned char tmp[NS_MAXCDNAME]; + int n = __ns_name_unpack (msg, eom, src, tmp, sizeof tmp); + if (n < 0) + return -1; + if (__ns_name_ntop (tmp, dst, dstsiz) < 0) + return -1; + return n; +} +versioned_symbol (libc, ___ns_name_uncompress, ns_name_uncompress, + GLIBC_2_34); +versioned_symbol (libc, ___ns_name_uncompress, __ns_name_uncompress, + GLIBC_PRIVATE); +libc_hidden_ver (___ns_name_uncompress, __ns_name_uncompress) + +#if OTHER_SHLIB_COMPAT (libresolv, GLIBC_2_9, GLIBC_2_34) +compat_symbol (libresolv, ___ns_name_uncompress, ns_name_uncompress, + GLIBC_2_9); +#endif |