openssl/apps/info.c
Neil Horman 917f37195a Allow OPENSSLDIR/ENGINESDIR/MODULESDIR to be NULL
To prevent inadvertent use of insecure directories, we need to be able
to detect and react when our new registry keys aren't set, which implies
allowing the values for the dynamic representations of
OPENSSLDIR/ENGINESDIR/MODULESDIR to return NULL.  This in turn requires
that we detect and handle NULL string in several call sites that
previously assumed they would never be NULL.  This commit fixes those up

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24450)
2024-07-09 04:01:44 -04:00

107 lines
3.1 KiB
C

/*
* Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/crypto.h>
#include "apps.h"
#include "progs.h"
typedef enum OPTION_choice {
OPT_COMMON,
OPT_CONFIGDIR, OPT_ENGINESDIR, OPT_MODULESDIR, OPT_DSOEXT, OPT_DIRNAMESEP,
OPT_LISTSEP, OPT_SEEDS, OPT_CPUSETTINGS
} OPTION_CHOICE;
const OPTIONS info_options[] = {
OPT_SECTION("General"),
{"help", OPT_HELP, '-', "Display this summary"},
OPT_SECTION("Output"),
{"configdir", OPT_CONFIGDIR, '-', "Default configuration file directory"},
{"enginesdir", OPT_ENGINESDIR, '-', "Default engine module directory"},
{"modulesdir", OPT_MODULESDIR, '-',
"Default module directory (other than engine modules)"},
{"dsoext", OPT_DSOEXT, '-', "Configured extension for modules"},
{"dirnamesep", OPT_DIRNAMESEP, '-', "Directory-filename separator"},
{"listsep", OPT_LISTSEP, '-', "List separator character"},
{"seeds", OPT_SEEDS, '-', "Seed sources"},
{"cpusettings", OPT_CPUSETTINGS, '-', "CPU settings info"},
{NULL}
};
int info_main(int argc, char **argv)
{
int ret = 1, dirty = 0, type = 0;
char *prog;
OPTION_CHOICE o;
const char *typedata;
prog = opt_init(argc, argv, info_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
default:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(info_options);
ret = 0;
goto end;
case OPT_CONFIGDIR:
type = OPENSSL_INFO_CONFIG_DIR;
dirty++;
break;
case OPT_ENGINESDIR:
type = OPENSSL_INFO_ENGINES_DIR;
dirty++;
break;
case OPT_MODULESDIR:
type = OPENSSL_INFO_MODULES_DIR;
dirty++;
break;
case OPT_DSOEXT:
type = OPENSSL_INFO_DSO_EXTENSION;
dirty++;
break;
case OPT_DIRNAMESEP:
type = OPENSSL_INFO_DIR_FILENAME_SEPARATOR;
dirty++;
break;
case OPT_LISTSEP:
type = OPENSSL_INFO_LIST_SEPARATOR;
dirty++;
break;
case OPT_SEEDS:
type = OPENSSL_INFO_SEED_SOURCE;
dirty++;
break;
case OPT_CPUSETTINGS:
type = OPENSSL_INFO_CPU_SETTINGS;
dirty++;
break;
}
}
if (!opt_check_rest_arg(NULL))
goto opthelp;
if (dirty > 1) {
BIO_printf(bio_err, "%s: Only one item allowed\n", prog);
goto opthelp;
}
if (dirty == 0) {
BIO_printf(bio_err, "%s: No items chosen\n", prog);
goto opthelp;
}
typedata = OPENSSL_info(type);
BIO_printf(bio_out, "%s\n", typedata == NULL ? "Undefined" : typedata);
ret = 0;
end:
return ret;
}