> Reproduced on Windows 7 (likely on the all old versions)
> I use OpenSSL v. 0.9.8k but I has looked the last version and the bug also
> exist.
>
> When we try call OPENSSL_cinfig with the path who specifies on the DvD(or
> CD)-ROM without disc the openSSL is exiting.
I've been bitten by that exact bug with latest 1.0.1g too ... This is a huge
WTF. Your app works fine on some machines, but starts crashing / exiting on
some others, just because you compiled / installed openssl e.g. on D:\ locally,
and D:\ turns out to be a CD/RW drive on the deployment machine.
Independent from this bug report (untouched since 2011) I came to the exact
same conclusions & fix. Any chance this gets some attention? :)
If you don't like the idea to map EACCES to BIO_R_NO_SUCH_FILE I can create a
patch introducing a BIO_R_ACCESS_ERROR, too ...
Regards
Kai
> It happens because in the function
> (version 0.9.8k): .\crypto\bio\bss_file.c
>
> BIO *BIO_new_file(const char *filename, const char *mode)
> {
> BIO *ret;
> FILE *file;
>
> if ((file=fopen(filename,mode)) == NULL)
> <------------------------
> {
> SYSerr(SYS_F_FOPEN,get_last_sys_error());
>
> ERR_add_error_data(5,"fopen('",filename,"','",mode,"')");
>
> if (errno == ENOENT) <------------------------
> errno == EACCES
>
> BIOerr(BIO_F_BIO_NEW_FILE,BIO_R_NO_SUCH_FILE);
> else
>
> BIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB); <----------------------
> return(NULL);
> }
> if ((ret=BIO_new(BIO_s_file_internal())) == NULL)
> {
> fclose(file);
> return(NULL);
> }
>
> BIO_clear_flags(ret,BIO_FLAGS_UPLINK); /* we did fopen -> we
> disengage UPLINK */
> BIO_set_fp(ret,file,BIO_CLOSE);
> return(ret);
> }
>
> The function fopen() returns EACCESS instead of ENOENT if it passes path to
> DVD-ROM without disc.
> You can check it:
>
> // C:\ - logical disc exists
> FILE * f1 = fopen("C:\\test.fl", "rb");
> int myErrno = errno; // 2
> - ENOENT
>
> // D:\ - logical disc not exists
> f1 = fopen("D:\\test.fl", "rb");
> myErrno = errno;
> // 2 - ENOENT
>
> // N:\ - DVD-ROM without dvd-disk
> f1 = fopen("N:\\test.fl", "rb");
> myErrno = errno;
> // 13 - EACCES
>
>Because of this is calling BIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB); and at
>the end the OPENSSL_config do call exit(1).
>
>void OPENSSL_config(const char *config_name)
>{
>...
> ERR_clear_error();
> if (CONF_modules_load_file(NULL, config_name,
> CONF_MFLAGS_DEFAULT_SECTION|CONF_MFLAGS_IGNORE_MISSING_FILE) <= 0)
> {
> BIO *bio_err;
> ERR_load_crypto_strings();
> if ((bio_err=BIO_new_fp(stderr, BIO_NOCLOSE)) != NULL)
> {
> BIO_printf(bio_err,"Auto configuration failed\n");
> ERR_print_errors(bio_err);
> BIO_free(bio_err);
> }
> exit(1); <-------------------------
> }
>
> return;
>}
>
>For my project I changed the source of OpenSSL:
>
>BIO *BIO_new_file(const char *filename, const char *mode)
> {
> BIO *ret;
> FILE *file;
>
> if ((file=fopen(filename,mode)) == NULL)
> {
> SYSerr(SYS_F_FOPEN,get_last_sys_error());
> ERR_add_error_data(5,"fopen('",filename,"','",mode,"')");
>
> if (errno == ENOENT || errno == EACCES)
> BIOerr(BIO_F_BIO_NEW_FILE,BIO_R_NO_SUCH_FILE);
> else
> BIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB);
> return(NULL);
> }
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