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authorFlorian Weimer <fweimer@redhat.com>2021-07-19 07:55:27 +0200
committerFlorian Weimer <fweimer@redhat.com>2021-07-19 07:56:21 +0200
commit640bbdf71c6f10ac26252ac67a22902e26657bd8 (patch)
tree227d6260dda188bdc22f2d9a6b52acd77c3d68b7 /resolv/res_comp.c
parent13e1f86706e463de4429f7e88f47c6ff65cd845e (diff)
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resolv: Move dn_expand to its own file and into libc
And reformat to GNU style. This switches back to the dn_expand name for the ABI symbol and turns __dn_expand into a compatibility symbol. With the improved namespace management in current glibc, it is no longer necessary to use a private namespace symbol. To avoid old code binding to a GLIBC_PRIVATE symbol by accident, use __libc_dn_expand for the internal symbol name. The symbols dn_expand, __dnexpand were moved using scripts/move-symbol-to-libc.py, followed by an adjustment to make dn_expand the only GLIBC_2.34 symbol. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'resolv/res_comp.c')
-rw-r--r--resolv/res_comp.c27
1 files changed, 0 insertions, 27 deletions
diff --git a/resolv/res_comp.c b/resolv/res_comp.c
index c537886..42e73a1 100644
--- a/resolv/res_comp.c
+++ b/resolv/res_comp.c
@@ -93,25 +93,6 @@
#include <unistd.h>
/*
- * Expand compressed domain name 'comp_dn' to full domain name.
- * 'msg' is a pointer to the beginning of the message,
- * 'eomorig' points to the first location after the message,
- * 'exp_dn' is a pointer to a buffer of size 'length' for the result.
- * Return size of compressed name or -1 if there was an error.
- */
-int
-dn_expand(const u_char *msg, const u_char *eom, const u_char *src,
- char *dst, int dstsiz)
-{
- int n = ns_name_uncompress(msg, eom, src, dst, (size_t)dstsiz);
-
- if (n > 0 && dst[0] == '.')
- dst[0] = '\0';
- return (n);
-}
-libresolv_hidden_def (dn_expand)
-
-/*
* Pack domain name 'exp_dn' in presentation form into 'comp_dn'.
* Return the size of the compressed name or -1.
* 'length' is the size of the array pointed to by 'comp_dn'.
@@ -268,11 +249,3 @@ void __putshort(uint16_t src, u_char *dst) { ns_put16(src, dst); }
libresolv_hidden_def (__putshort)
uint32_t _getlong(const u_char *src) { return (ns_get32(src)); }
uint16_t _getshort(const u_char *src) { return (ns_get16(src)); }
-
-
-#include <shlib-compat.h>
-
-#if SHLIB_COMPAT(libresolv, GLIBC_2_0, GLIBC_2_2)
-# undef dn_expand
-weak_alias (__dn_expand, dn_expand);
-#endif