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openssl/test/errtest.c
Richard Levitte abcca5078f TEST: Adapt test/errtest for the 'no-err' configuration 
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13510)
2020-11-27 12:02:56 +01:00

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/*
* Copyright 2018-2020 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 <string.h>
#include <openssl/opensslconf.h>
#include <openssl/err.h>
#include <openssl/macros.h>
#include "testutil.h"
#if defined(OPENSSL_SYS_WINDOWS)
# include <windows.h>
#else
# include <errno.h>
#endif
#ifndef OPENSSL_NO_DEPRECATED_3_0
# define IS_HEX(ch) ((ch >= '0' && ch <='9') || (ch >= 'A' && ch <='F'))
static int test_print_error_format(void)
{
/* Variables used to construct an error line */
char *lib;
const char *func = OPENSSL_FUNC;
char *reason;
# ifdef OPENSSL_NO_ERR
char reasonbuf[255];
# endif
# ifndef OPENSSL_NO_FILENAMES
const char *file = OPENSSL_FILE;
const int line = OPENSSL_LINE;
# else
const char *file = "";
const int line = 0;
# endif
/* The format for OpenSSL error lines */
const char *expected_format = ":error:%08lX:%s:%s:%s:%s:%d";
/*-
* ^^ ^^ ^^ ^^ ^^
* "library" name --------------------------++ || || || ||
* function name ------------------------------++ || || ||
* reason string (system error string) -----------++ || ||
* file name ----------------------------------------++ ||
* line number -----------------------------------------++
*/
char expected[512];
char *out = NULL, *p = NULL;
int ret = 0, len;
BIO *bio = NULL;
const int syserr = EPERM;
unsigned long errorcode;
unsigned long reasoncode;
/*
* We set a mark here so we can clear the system error that we generate
* with ERR_PUT_error(). That is, after all, just a simulation to verify
* ERR_print_errors() output, not a real error.
*/
ERR_set_mark();
ERR_PUT_error(ERR_LIB_SYS, 0, syserr, file, line);
errorcode = ERR_peek_error();
reasoncode = ERR_GET_REASON(errorcode);
if (!TEST_int_eq(reasoncode, syserr)) {
ERR_pop_to_mark();
goto err;
}
# ifndef OPENSSL_NO_ERR
lib = "system library";
reason = strerror(syserr);
# else
lib = "lib(2)";
BIO_snprintf(reasonbuf, sizeof(reasonbuf), "reason(%lu)", reasoncode);
reason = reasonbuf;
# endif
BIO_snprintf(expected, sizeof(expected), expected_format,
errorcode, lib, func, reason, file, line);
if (!TEST_ptr(bio = BIO_new(BIO_s_mem())))
goto err;
ERR_print_errors(bio);
if (!TEST_int_gt(len = BIO_get_mem_data(bio, &out), 0))
goto err;
/* Skip over the variable thread id at the start of the string */
for (p = out; *p != ':' && *p != 0; ++p) {
if (!TEST_true(IS_HEX(*p)))
goto err;
}
if (!TEST_true(*p != 0)
|| !TEST_strn_eq(expected, p, strlen(expected)))
goto err;
ret = 1;
err:
BIO_free(bio);
return ret;
}
#endif
/* Test that querying the error queue preserves the OS error. */
static int preserves_system_error(void)
{
#if defined(OPENSSL_SYS_WINDOWS)
SetLastError(ERROR_INVALID_FUNCTION);
ERR_get_error();
return TEST_int_eq(GetLastError(), ERROR_INVALID_FUNCTION);
#else
errno = EINVAL;
ERR_get_error();
return TEST_int_eq(errno, EINVAL);
#endif
}
/* Test that calls to ERR_add_error_[v]data append */
static int vdata_appends(void)
{
const char *data;
ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
ERR_add_error_data(1, "hello ");
ERR_add_error_data(1, "world");
ERR_peek_error_data(&data, NULL);
return TEST_str_eq(data, "hello world");
}
static int raised_error(void)
{
const char *f, *data;
int l;
unsigned long e;
/*
* When OPENSSL_NO_ERR or OPENSSL_NO_FILENAMES, no file name or line
* number is saved, so no point checking them.
*/
#if !defined(OPENSSL_NO_FILENAMES) && !defined(OPENSSL_NO_ERR)
const char *file;
int line;
file = __FILE__;
line = __LINE__ + 2; /* The error is generated on the ERR_raise_data line */
#endif
ERR_raise_data(ERR_LIB_NONE, ERR_R_INTERNAL_ERROR,
"calling exit()");
if (!TEST_ulong_ne(e = ERR_get_error_all(&f, &l, NULL, &data, NULL), 0)
|| !TEST_int_eq(ERR_GET_REASON(e), ERR_R_INTERNAL_ERROR)
#if !defined(OPENSSL_NO_FILENAMES) && !defined(OPENSSL_NO_ERR)
|| !TEST_int_eq(l, line)
|| !TEST_str_eq(f, file)
#endif
|| !TEST_str_eq(data, "calling exit()"))
return 0;
return 1;
}
static int test_marks(void)
{
unsigned long mallocfail, shouldnot;
/* Set an initial error */
ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
mallocfail = ERR_peek_last_error();
if (!TEST_ulong_gt(mallocfail, 0))
return 0;
/* Setting and clearing a mark should not affect the error */
if (!TEST_true(ERR_set_mark())
|| !TEST_true(ERR_pop_to_mark())
|| !TEST_ulong_eq(mallocfail, ERR_peek_last_error())
|| !TEST_true(ERR_set_mark())
|| !TEST_true(ERR_clear_last_mark())
|| !TEST_ulong_eq(mallocfail, ERR_peek_last_error()))
return 0;
/* Test popping errors */
if (!TEST_true(ERR_set_mark()))
return 0;
ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
if (!TEST_ulong_ne(mallocfail, ERR_peek_last_error())
|| !TEST_true(ERR_pop_to_mark())
|| !TEST_ulong_eq(mallocfail, ERR_peek_last_error()))
return 0;
/* Nested marks should also work */
if (!TEST_true(ERR_set_mark())
|| !TEST_true(ERR_set_mark()))
return 0;
ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
if (!TEST_ulong_ne(mallocfail, ERR_peek_last_error())
|| !TEST_true(ERR_pop_to_mark())
|| !TEST_true(ERR_pop_to_mark())
|| !TEST_ulong_eq(mallocfail, ERR_peek_last_error()))
return 0;
if (!TEST_true(ERR_set_mark()))
return 0;
ERR_raise(ERR_LIB_CRYPTO, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
shouldnot = ERR_peek_last_error();
if (!TEST_ulong_ne(mallocfail, shouldnot)
|| !TEST_true(ERR_set_mark()))
return 0;
ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
if (!TEST_ulong_ne(shouldnot, ERR_peek_last_error())
|| !TEST_true(ERR_pop_to_mark())
|| !TEST_ulong_eq(shouldnot, ERR_peek_last_error())
|| !TEST_true(ERR_pop_to_mark())
|| !TEST_ulong_eq(mallocfail, ERR_peek_last_error()))
return 0;
/* Setting and clearing a mark should not affect the errors on the stack */
if (!TEST_true(ERR_set_mark()))
return 0;
ERR_raise(ERR_LIB_CRYPTO, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
if (!TEST_true(ERR_clear_last_mark())
|| !TEST_ulong_eq(shouldnot, ERR_peek_last_error()))
return 0;
/*
* Popping where no mark has been set should pop everything - but return
* a failure result
*/
if (!TEST_false(ERR_pop_to_mark())
|| !TEST_ulong_eq(0, ERR_peek_last_error()))
return 0;
/* Clearing where there is no mark should fail */
ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
if (!TEST_false(ERR_clear_last_mark())
/* "get" the last error to remove it */
|| !TEST_ulong_eq(mallocfail, ERR_get_error())
|| !TEST_ulong_eq(0, ERR_peek_last_error()))
return 0;
/*
* Setting a mark where there are no errors in the stack should fail.
* NOTE: This is somewhat surprising behaviour but is historically how this
* function behaves. In practice we typically set marks without first
* checking whether there is anything on the stack - but we also don't
* tend to check the success of this function. It turns out to work anyway
* because although setting a mark with no errors fails, a subsequent call
* to ERR_pop_to_mark() or ERR_clear_last_mark() will do the right thing
* anyway (even though they will report a failure result).
*/
if (!TEST_false(ERR_set_mark()))
return 0;
ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
if (!TEST_true(ERR_set_mark()))
return 0;
ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
ERR_raise(ERR_LIB_CRYPTO, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
/* Should be able to "pop" past 2 errors */
if (!TEST_true(ERR_pop_to_mark())
|| !TEST_ulong_eq(mallocfail, ERR_peek_last_error()))
return 0;
if (!TEST_true(ERR_set_mark()))
return 0;
ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
ERR_raise(ERR_LIB_CRYPTO, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
/* Should be able to "clear" past 2 errors */
if (!TEST_true(ERR_clear_last_mark())
|| !TEST_ulong_eq(shouldnot, ERR_peek_last_error()))
return 0;
/* Clear remaining errors from last test */
ERR_clear_error();
return 1;
}
int setup_tests(void)
{
ADD_TEST(preserves_system_error);
ADD_TEST(vdata_appends);
ADD_TEST(raised_error);
#ifndef OPENSSL_NO_DEPRECATED_3_0
ADD_TEST(test_print_error_format);
#endif
ADD_TEST(test_marks);
return 1;
}
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