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/* tsexp.c - S-expression regression tests
* Copyright (C) 2001, 2002 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "../src/gcrypt.h"
#define PGMNAME "tsexp"
static int verbose;
static int error_count;
static void
info (const char *format, ...)
{
va_list arg_ptr;
if (verbose)
{
va_start( arg_ptr, format ) ;
vfprintf (stderr, format, arg_ptr );
va_end(arg_ptr);
}
}
static void
fail ( const char *format, ... )
{
va_list arg_ptr ;
fputs (PGMNAME ": ", stderr);
va_start( arg_ptr, format ) ;
vfprintf (stderr, format, arg_ptr );
va_end(arg_ptr);
error_count++;
}
/* fixme: we need better tests */
static void
basic (void)
{
GCRY_SEXP sexp;
int idx;
const char *string;
static struct {
const char *token;
const char *parm;
} values[] = {
{ "public-key", NULL },
{ "dsa", NULL },
{ "dsa", "p" },
{ "dsa", "y" },
{ "dsa", "q" },
{ "dsa", "g" },
{ NULL }
};
info ("doing some pretty pointless tests\n");
string = ("(public-key (dsa (p #41424344#) (y this_is_y) "
"(q #61626364656667#) (g %m)))");
if ( gcry_sexp_build (&sexp, NULL, string, gcry_mpi_set_ui (NULL, 42)) )
{
fail (" scanning `%s' failed\n", string);
return;
}
/* now find something */
for (idx=0; values[idx].token; idx++)
{
const char *token = values[idx].token;
const char *parm = values[idx].parm;
GCRY_SEXP s1, s2;
GCRY_MPI a;
const char *p;
size_t n;
s1 = gcry_sexp_find_token (sexp, token, strlen(token) );
if (!s1)
{
fail ("didn't found `%s'\n", token);
continue;
}
p = gcry_sexp_nth_data (s1, 0, &n);
if (!p)
{
fail ("no car for `%s'\n", token);
continue;
}
info ("car=`%.*s'\n", (int)n, p);
s2 = gcry_sexp_cdr (s1);
if (!s2)
{
fail ("no cdr for `%s'\n", token);
continue;
}
p = gcry_sexp_nth_data (s2, 0, &n);
if (p)
{
fail ("data at car of `%s'\n", token);
continue;
}
if (parm)
{
s2 = gcry_sexp_find_token (s1, parm, strlen (parm));
if (!s2)
{
fail ("didn't found `%s'\n", parm);
continue;
}
p = gcry_sexp_nth_data (s2, 0, &n);
if (!p)
{
fail("no car for `%s'\n", parm );
continue;
}
info ("car=`%.*s'\n", (int)n, p);
p = gcry_sexp_nth_data (s2, 1, &n);
if (!p)
{
fail("no cdr for `%s'\n", parm );
continue;
}
info ("cdr=`%.*s'\n", (int)n, p);
a = gcry_sexp_nth_mpi (s2, 0, GCRYMPI_FMT_USG);
if (!a)
{
fail("failed to cdr the mpi for `%s'\n", parm);
continue;
}
}
}
}
static void
canon_len (void)
{
static struct {
size_t textlen; /* length of the buffer */
size_t expected;/* expected length or 0 on error and then ... */
size_t erroff; /* ... and at this offset */
int errcode; /* ... with this error code */
unsigned char *text;
} values[] = {
{ 14, 13, 0, 0, "(9:abcdefghi) " },
{ 16, 15, 0, 0, "(10:abcdefghix)" },
{ 14, 0,14, -2, "(10:abcdefghi)" },
{ 15, 0, 1, -7, "(010:abcdefghi)" },
{ 2, 0, 0, -4, "1:"},
{ 4, 0, 4, -2, "(1:)"},
{ 5, 5, 0, 0, "(1:x)"},
{ 2, 2, 0, 0, "()"},
{ 4, 2, 0, 0, "()()"},
{ 4, 4, 0, 0, "(())"},
{ 3, 0, 3, -2, "(()"},
{ 3, 0, 1, -5, "( )"},
{ 9, 9, 0, 0, "(3:abc())"},
{ 10, 0, 6, -5, "(3:abc ())"},
/* fixme: we need much more cases */
{ 0 },
};
int idx;
int errcode;
size_t n, erroff;
info ("checking canoncial length test function\n");
for (idx=0; values[idx].text; idx++)
{
n = gcry_sexp_canon_len (values[idx].text, values[idx].textlen,
&erroff, &errcode);
if (n && n == values[idx].expected)
; /* success */
else if (!n && !values[idx].expected)
{ /* we expected an error - check that this is the right one */
if (values[idx].erroff != erroff)
fail ("canonical length test %d - wrong error offset %u\n",
idx, (unsigned int)erroff);
if (values[idx].errcode != errcode)
fail ("canonical length test %d - wrong error code %d\n",
idx, errcode);
}
else
fail ("canonical length test %d failed - n=%u, off=%u, err=%d\n",
idx, (unsigned int)n, (unsigned int)erroff, errcode);
}
}
int
main (int argc, char **argv)
{
if (argc > 1 && !strcmp (argv[1], "-v"))
verbose = 1;
basic ();
canon_len ();
return error_count? 1:0;
}
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