openssl/test/testutil/stanza.c

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/*
* Copyright 2017 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 <assert.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "internal/nelem.h"
#include "../testutil.h"
#include "tu_local.h"
int test_start_file(STANZA *s, const char *testfile)
{
TEST_info("Reading %s", testfile);
set_test_title(testfile);
memset(s, 0, sizeof(*s));
if (!TEST_ptr(s->fp = BIO_new_file(testfile, "r")))
return 0;
s->test_file = testfile;
return 1;
}
int test_end_file(STANZA *s)
{
TEST_info("Completed %d tests with %d errors and %d skipped",
s->numtests, s->errors, s->numskip);
BIO_free(s->fp);
return 1;
}
/*
* Read a PEM block. Return 1 if okay, 0 on error.
*/
static int read_key(STANZA *s)
{
char tmpbuf[128];
if (s->key == NULL) {
if (!TEST_ptr(s->key = BIO_new(BIO_s_mem())))
return 0;
} else if (!TEST_int_gt(BIO_reset(s->key), 0)) {
return 0;
}
/* Read to PEM end line and place content in memory BIO */
while (BIO_gets(s->fp, tmpbuf, sizeof(tmpbuf))) {
s->curr++;
if (!TEST_int_gt(BIO_puts(s->key, tmpbuf), 0))
return 0;
if (strncmp(tmpbuf, "-----END", 8) == 0)
return 1;
}
TEST_error("Can't find key end");
return 0;
}
/*
* Delete leading and trailing spaces from a string
*/
static char *strip_spaces(char *p)
{
char *q;
/* Skip over leading spaces */
while (*p && isspace((unsigned char)*p))
p++;
if (*p == '\0')
return NULL;
for (q = p + strlen(p) - 1; q != p && isspace((unsigned char)*q); )
*q-- = '\0';
return *p ? p : NULL;
}
/*
* Read next test stanza; return 1 if found, 0 on EOF or error.
*/
int test_readstanza(STANZA *s)
{
PAIR *pp = s->pairs;
char *p, *equals, *key;
const char *value;
for (s->numpairs = 0; BIO_gets(s->fp, s->buff, sizeof(s->buff)); ) {
s->curr++;
if (!TEST_ptr(p = strchr(s->buff, '\n'))) {
TEST_info("Line %d too long", s->curr);
return 0;
}
*p = '\0';
/* Blank line marks end of tests. */
if (s->buff[0] == '\0')
break;
/* Lines starting with a pound sign are ignored. */
if (s->buff[0] == '#')
continue;
/* Parse into key=value */
if (!TEST_ptr(equals = strchr(s->buff, '='))) {
TEST_info("Missing = at line %d\n", s->curr);
return 0;
}
*equals++ = '\0';
if (!TEST_ptr(key = strip_spaces(s->buff))) {
TEST_info("Empty field at line %d\n", s->curr);
return 0;
}
if ((value = strip_spaces(equals)) == NULL)
value = "";
if (strcmp(key, "Title") == 0) {
TEST_info("Starting \"%s\" tests at line %d", value, s->curr);
continue;
}
if (s->numpairs == 0)
s->start = s->curr;
if (strcmp(key, "PrivateKey") == 0) {
if (!read_key(s))
return 0;
}
if (strcmp(key, "PublicKey") == 0) {
if (!read_key(s))
return 0;
}
if (!TEST_int_lt(s->numpairs++, TESTMAXPAIRS)
|| !TEST_ptr(pp->key = OPENSSL_strdup(key))
|| !TEST_ptr(pp->value = OPENSSL_strdup(value)))
return 0;
pp++;
}
/* If we read anything, return ok. */
return 1;
}
void test_clearstanza(STANZA *s)
{
PAIR *pp = s->pairs;
int i = s->numpairs;
for ( ; --i >= 0; pp++) {
OPENSSL_free(pp->key);
OPENSSL_free(pp->value);
}
s->numpairs = 0;
}