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2010-09-21 Pierre Humblet <Pierre.Humblet@ieee.org>

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* libc/minires.c (res_nsend): Use the Windows resolver if appropriate.
        (dn_expand): Only set errno in case of error. Delete old comments.
        (dn_skipname): Fix typo in comment.
This commit is contained in:
Pierre Humblet 2010-09-21 21:41:31 +00:00
parent b53c1929e5
commit 5c22068f7f
2 changed files with 28 additions and 4 deletions
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6
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,9 @@
2010-09-21 Pierre Humblet <Pierre.Humblet@ieee.org>
* libc/minires.c (res_nsend): Use the Windows resolver if appropriate.
(dn_expand): Only set errno in case of error. Delete old comments.
(dn_skipname): Fix typo in comment.
2010-09-21 Corinna Vinschen <corinna@vinschen.de> 2010-09-21 Corinna Vinschen <corinna@vinschen.de>
* path.cc (cwdstuff::set): Replace constant 2 with sizeof(WCHAR) where * path.cc (cwdstuff::set): Replace constant 2 with sizeof(WCHAR) where

26
winsup/cygwin/libc/minires.c
View File

@ -437,6 +437,26 @@ int res_nsend( res_state statp, const unsigned char * MsgPtr,
if (((statp->options & RES_INIT) == 0) && (res_ninit(statp) != 0)) if (((statp->options & RES_INIT) == 0) && (res_ninit(statp) != 0))
return -1; return -1;
/* If a hook exists to a native implementation, use it */
if (statp->os_query) {
int len;
short int Class, Type;
unsigned char DomName[MAXDNAME];
unsigned char * ptr = MsgPtr + HFIXEDSZ;
len = dn_expand(MsgPtr, MsgPtr + MsgLength, ptr, DomName, sizeof(DomName));
if (len > 0) {
ptr += len;
GETSHORT(Type, ptr);
GETSHORT(Class, ptr);
return ((os_query_t *) statp->os_query)(statp, DomName, Class, Type, AnsPtr, AnsLength);
}
else {
/* dn_expand sets errno */
statp->res_h_errno = NETDB_INTERNAL;
return -1;
}
}
/* Close the socket if it had been opened before a fork. /* Close the socket if it had been opened before a fork.
Reuse of pid's cannot hurt */ Reuse of pid's cannot hurt */
if ((statp->sockfd != -1) && (statp->mypid != getpid())) { if ((statp->sockfd != -1) && (statp->mypid != getpid())) {
@ -808,9 +828,7 @@ int dn_expand(const unsigned char *msg, const unsigned char *eomorig,
{ {
unsigned int len, complen = 0; unsigned int len, complen = 0;
const unsigned char *comp_dn_orig = comp_dn; const unsigned char *comp_dn_orig = comp_dn;
/* char * exp_start = exp_dn; */
errno = EINVAL;
if (comp_dn >= eomorig) if (comp_dn >= eomorig)
goto expand_fail; goto expand_fail;
if ((len = *comp_dn++) == 0) /* Weird case */ if ((len = *comp_dn++) == 0) /* Weird case */
@ -843,7 +861,7 @@ int dn_expand(const unsigned char *msg, const unsigned char *eomorig,
return complen; return complen;
expand_fail: expand_fail:
/* fprintf(stderr, "dn_expand fails\n"); */ errno = EINVAL;
return -1; return -1;
} }
@ -962,7 +980,7 @@ int dn_skipname(const unsigned char *comp_dn, const unsigned char *eom)
/***************************************************************** /*****************************************************************
* dn_length1 For internal use * dn_length1 For internal use
Return length of uncompressesed name incl final 0. Return length of uncompressed name incl final 0.
*****************************************************************/ *****************************************************************/
int dn_length1(const unsigned char *msg, const unsigned char *eomorig, int dn_length1(const unsigned char *msg, const unsigned char *eomorig,