bio/b_addr.c: omit private hstrerror.

Private hstrerror was introduced to address linking problem on HP-UX,
but truth be told conemporary systems, HP-UX included, wouldn't come
to that call, they would use getaddrinfo and gai_strerror, while
gethostbyname and h_errno are there to serve legacy systems. Since
legacy systems are naturally disappearing breed, we can as well just
let user interpret number.

GH#2816

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
This commit is contained in:
Andy Polyakov 2017-03-01 21:28:05 +01:00
parent ea750b5929
commit 3e49ee23ea

View File

@ -18,30 +18,6 @@
#include <internal/thread_once.h>
#include <ctype.h>
#ifdef _HPUX_SOURCE
static const char *ossl_hstrerror(int herr)
{
switch (herr) {
case -1:
return strerror(errno);
case 0:
return "No error";
case HOST_NOT_FOUND:
return "Host not found";
case NO_DATA: /* NO_ADDRESS is a synonym */
return "No data";
case NO_RECOVERY:
return "Non recoverable error";
case TRY_AGAIN:
return "Try again";
default:
break;
}
return "unknown error";
}
# define hstrerror(e) ossl_hstrerror(e)
#endif
CRYPTO_RWLOCK *bio_lookup_lock;
static CRYPTO_ONCE bio_lookup_init = CRYPTO_ONCE_STATIC_INIT;
@ -688,9 +664,10 @@ int BIO_lookup(const char *host, const char *service,
return 0;
if (1) {
int gai_ret = 0;
#ifdef AI_PASSIVE
int gai_ret = 0;
struct addrinfo hints;
memset(&hints, 0, sizeof hints);
hints.ai_family = family;
@ -780,8 +757,18 @@ int BIO_lookup(const char *host, const char *service,
if (he == NULL) {
#ifndef OPENSSL_SYS_WINDOWS
BIOerr(BIO_F_BIO_LOOKUP, ERR_R_SYS_LIB);
ERR_add_error_data(1, hstrerror(h_errno));
/*
* This might be misleading, because h_errno is used as if
* it was errno. To minimize mixup add 1000. Underlying
* reason for this is that hstrerror is declared obsolete,
* not to mention that a) h_errno is not always guaranteed
* to be meanigless; b) hstrerror can reside in yet another
* library, linking for sake of hstrerror is an overkill;
* c) this path is not executed on contemporary systems
* anyway [above getaddrinfo/gai_strerror is]. We just let
* system administrator figure this out...
*/
SYSerr(SYS_F_GETHOSTBYNAME, 1000 + h_errno);
#else
SYSerr(SYS_F_GETHOSTBYNAME, WSAGetLastError());
#endif
@ -830,8 +817,7 @@ int BIO_lookup(const char *host, const char *service,
if (se == NULL) {
#ifndef OPENSSL_SYS_WINDOWS
BIOerr(BIO_F_BIO_LOOKUP, ERR_R_SYS_LIB);
ERR_add_error_data(1, hstrerror(h_errno));
SYSerr(SYS_F_GETSERVBYNAME, errno);
#else
SYSerr(SYS_F_GETSERVBYNAME, WSAGetLastError());
#endif