Attempt to open certificate file "manually" using fopen before

trying BIO functions.
Helps problem with older versions of OpenSSL that lacks error
stack functions and would show an incorrect error message for
file-not-found-or-not-openable. The problem may still exist for
other errors, but file open error is by far the most common one.
This commit is contained in:
Magnus Hagander 2007-10-03 13:57:52 +00:00
parent 2890c33084
commit 76a6ddfa47

View File

@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/interfaces/libpq/fe-secure.c,v 1.97 2007/10/02 22:01:02 neilc Exp $
* $PostgreSQL: pgsql/src/interfaces/libpq/fe-secure.c,v 1.98 2007/10/03 13:57:52 mha Exp $
*
* NOTES
* [ Most of these notes are wrong/obsolete, but perhaps not all ]
@ -588,8 +588,8 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
#ifndef WIN32
struct stat buf2;
FILE *fp;
#endif
FILE *fp;
char fnbuf[MAXPGPATH];
BIO *bio;
PGconn *conn = (PGconn *) SSL_get_app_data(ssl);
@ -607,6 +607,23 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
/* read the user certificate */
snprintf(fnbuf, sizeof(fnbuf), "%s/%s", homedir, USER_CERT_FILE);
/*
* OpenSSL <= 0.8.2 lacks error stack handling. Do a separate check
* for the existance of the file without using BIO functions to make
* it pick up the majority of the cases with the old versions.
*/
#ifndef HAVE_ERR_SET_MARK
if ((fp = fopen(fnbuf, "r")) == NULL)
{
printfPQExpBuffer(&conn->errorMessage,
libpq_gettext("could not open certificate file \"%s\": %s\n"),
fnbuf, pqStrerror(errno, sebuf, sizeof(sebuf)));
return 0;
}
fclose(fp);
#endif
if ((bio = BIO_new_file(fnbuf, "r")) == NULL)
{
printfPQExpBuffer(&conn->errorMessage,