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gnupg/common/t-name-value.c

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/* t-name-value.c - Module test for name-value.c
* Copyright (C) 2016 g10 Code GmbH
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <assert.h>
#include <unistd.h>
#include <sys/stat.h>
#include "util.h"
#include "name-value.h"
static int verbose;
static int private_key_mode;
static nvc_t
my_nvc_new (void)
{
if (private_key_mode)
return nvc_new_private_key ();
else
return nvc_new ();
}
void
test_getting_values (nvc_t pk)
{
nve_t e;
e = nvc_lookup (pk, "Comment:");
assert (e);
/* Names are case-insensitive. */
e = nvc_lookup (pk, "comment:");
assert (e);
e = nvc_lookup (pk, "COMMENT:");
assert (e);
e = nvc_lookup (pk, "SomeOtherName:");
assert (e);
}
void
test_key_extraction (nvc_t pk)
{
gpg_error_t err;
gcry_sexp_t key;
if (private_key_mode)
{
err = nvc_get_private_key (pk, &key);
assert (err == 0);
assert (key);
if (verbose)
gcry_sexp_dump (key);
gcry_sexp_release (key);
}
else
{
err = nvc_get_private_key (pk, &key);
assert (gpg_err_code (err) == GPG_ERR_MISSING_KEY);
}
}
void
test_iteration (nvc_t pk)
{
int i;
nve_t e;
i = 0;
for (e = nvc_first (pk); e; e = nve_next (e))
i++;
assert (i == 4);
i = 0;
for (e = nvc_lookup (pk, "Comment:");
e;
e = nve_next_value (e, "Comment:"))
i++;
assert (i == 3);
}
void
test_whitespace (nvc_t pk)
{
nve_t e;
e = nvc_lookup (pk, "One:");
assert (e);
assert (strcmp (nve_value (e), "WithoutWhitespace") == 0);
e = nvc_lookup (pk, "Two:");
assert (e);
assert (strcmp (nve_value (e), "With Whitespace") == 0);
e = nvc_lookup (pk, "Three:");
assert (e);
assert (strcmp (nve_value (e),
"Blank lines in continuations encode newlines.\n"
"Next paragraph.") == 0);
}
struct
{
char *value;
void (*test_func) (nvc_t);
} tests[] =
{
{
"# This is a comment followed by an empty line\n"
"\n",
NULL,
},
{
"# This is a comment followed by two empty lines, Windows style\r\n"
"\r\n"
"\r\n",
NULL,
},
{
"# Some name,value pairs\n"
"Comment: Some comment.\n"
"SomeOtherName: Some value.\n",
test_getting_values,
},
{
" # Whitespace is preserved as much as possible\r\n"
"Comment:Some comment.\n"
"SomeOtherName: Some value. \n",
test_getting_values,
},
{
"# Values may be continued in the next line as indicated by leading\n"
"# space\n"
"Comment: Some rather long\n"
" comment that is continued in the next line.\n"
"\n"
" Blank lines with or without whitespace are allowed within\n"
" continuations to allow paragraphs.\n"
"SomeOtherName: Some value.\n",
test_getting_values,
},
{
"# Names may be given multiple times forming an array of values\n"
"Comment: Some comment, element 0.\n"
"Comment: Some comment, element 1.\n"
"Comment: Some comment, element 2.\n"
"SomeOtherName: Some value.\n",
test_iteration,
},
{
"# One whitespace at the beginning of a continuation is swallowed.\n"
"One: Without\n"
" Whitespace\n"
"Two: With\n"
" Whitespace\n"
"Three: Blank lines in continuations encode newlines.\n"
"\n"
" Next paragraph.\n",
test_whitespace,
},
{
"Description: Key to sign all GnuPG released tarballs.\n"
" The key is actually stored on a smart card.\n"
"Use-for-ssh: yes\n"
"OpenSSH-cert: long base64 encoded string wrapped so that this\n"
" key file can be easily edited with a standard editor.\n"
"Key: (shadowed-private-key\n"
" (rsa\n"
" (n #00AA1AD2A55FD8C8FDE9E1941772D9CC903FA43B268CB1B5A1BAFDC900\n"
" 2961D8AEA153424DC851EF13B83AC64FBE365C59DC1BD3E83017C90D4365B4\n"
" 83E02859FC13DB5842A00E969480DB96CE6F7D1C03600392B8E08EF0C01FC7\n"
" 19F9F9086B25AD39B4F1C2A2DF3E2BE317110CFFF21D4A11455508FE407997\n"
" 601260816C8422297C0637BB291C3A079B9CB38A92CE9E551F80AA0EBF4F0E\n"
" 72C3F250461E4D31F23A7087857FC8438324A013634563D34EFDDCBF2EA80D\n"
" F9662C9CCD4BEF2522D8BDFED24CEF78DC6B309317407EAC576D889F88ADA0\n"
" 8C4FFB480981FB68C5C6CA27503381D41018E6CDC52AAAE46B166BDC10637A\n"
" E186A02BA2497FDC5D1221#)\n"
" (e #00010001#)\n"
" (shadowed t1-v1\n"
" (#D2760001240102000005000011730000# OPENPGP.1)\n"
" )))\n",
test_key_extraction,
},
};
static char *
nvc_to_string (nvc_t pk)
{
gpg_error_t err;
char *buf;
size_t len;
estream_t sink;
sink = es_fopenmem (0, "rw");
assert (sink);
err = nvc_write (pk, sink);
assert (err == 0);
len = es_ftell (sink);
buf = xmalloc (len+1);
assert (buf);
es_fseek (sink, 0, SEEK_SET);
es_read (sink, buf, len, NULL);
buf[len] = 0;
es_fclose (sink);
return buf;
}
void dummy_free (void *p) { (void) p; }
void *dummy_realloc (void *p, size_t s) { (void) s; return p; }
void
run_tests (void)
{
gpg_error_t err;
nvc_t pk;
int i;
for (i = 0; i < DIM (tests); i++)
{
estream_t source;
char *buf;
size_t len;
len = strlen (tests[i].value);
source = es_mopen (tests[i].value, len, len,
0, dummy_realloc, dummy_free, "r");
assert (source);
if (private_key_mode)
err = nvc_parse_private_key (&pk, NULL, source);
else
err = nvc_parse (&pk, NULL, source);
assert (err == 0);
assert (pk);
if (verbose)
{
err = nvc_write (pk, es_stderr);
assert (err == 0);
}
buf = nvc_to_string (pk);
assert (memcmp (tests[i].value, buf, len) == 0);
es_fclose (source);
xfree (buf);
if (tests[i].test_func)
tests[i].test_func (pk);
nvc_release (pk);
}
}
void
run_modification_tests (void)
{
gpg_error_t err;
nvc_t pk;
nve_t e;
gcry_sexp_t key;
char *buf;
pk = my_nvc_new ();
assert (pk);
nvc_set (pk, "Foo:", "Bar");
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: Bar\n") == 0);
xfree (buf);
nvc_set (pk, "Foo:", "Baz");
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: Baz\n") == 0);
xfree (buf);
nvc_set (pk, "Bar:", "Bazzel");
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: Baz\nBar: Bazzel\n") == 0);
xfree (buf);
nvc_add (pk, "Foo:", "Bar");
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: Baz\nFoo: Bar\nBar: Bazzel\n") == 0);
xfree (buf);
nvc_add (pk, "DontExistYet:", "Bar");
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: Baz\nFoo: Bar\nBar: Bazzel\nDontExistYet: Bar\n")
== 0);
xfree (buf);
nvc_delete (pk, nvc_lookup (pk, "DontExistYet:"));
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: Baz\nFoo: Bar\nBar: Bazzel\n") == 0);
xfree (buf);
nvc_delete (pk, nve_next_value (nvc_lookup (pk, "Foo:"), "Foo:"));
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: Baz\nBar: Bazzel\n") == 0);
xfree (buf);
nvc_delete (pk, nvc_lookup (pk, "Foo:"));
buf = nvc_to_string (pk);
assert (strcmp (buf, "Bar: Bazzel\n") == 0);
xfree (buf);
nvc_delete (pk, nvc_first (pk));
buf = nvc_to_string (pk);
assert (strcmp (buf, "") == 0);
xfree (buf);
/* Test whether we can delete an entry by name. */
err = nvc_add (pk, "Key:", "(3:foo)");
assert (!err);
e = nvc_lookup (pk, "Key:");
assert (e);
nvc_delete_named (pk, "Kez:"); /* Delete an nonexistent name. */
e = nvc_lookup (pk, "Key:");
assert (e);
nvc_delete_named (pk, "Key:");
e = nvc_lookup (pk, "Key:");
assert (!e);
/* Ditto but now whether it deletes all entries with that name. We
* don't use "Key" because that name is special in private key mode. */
err = nvc_add (pk, "AKey:", "A-value");
assert (!err);
err = nvc_add (pk, "AKey:", "B-value");
assert (!err);
e = nvc_lookup (pk, "AKey:");
assert (e);
nvc_delete_named (pk, "AKey:");
e = nvc_lookup (pk, "AKey:");
assert (!e);
nvc_set (pk, "Foo:", "A really long value spanning across multiple lines"
" that has to be wrapped at a convenient space.");
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: A really long value spanning across multiple"
" lines that has to be\n wrapped at a convenient space.\n")
== 0);
xfree (buf);
nvc_set (pk, "Foo:", "XA really long value spanning across multiple lines"
" that has to be wrapped at a convenient space.");
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: XA really long value spanning across multiple"
" lines that has to\n be wrapped at a convenient space.\n")
== 0);
xfree (buf);
nvc_set (pk, "Foo:", "XXXXA really long value spanning across multiple lines"
" that has to be wrapped at a convenient space.");
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: XXXXA really long value spanning across multiple"
" lines that has\n to be wrapped at a convenient space.\n")
== 0);
xfree (buf);
nvc_set (pk, "Foo:", "Areallylongvaluespanningacrossmultiplelines"
"thathastobewrappedataconvenientspacethatisnotthere.");
buf = nvc_to_string (pk);
assert (strcmp (buf, "Foo: Areallylongvaluespanningacrossmultiplelinesthat"
"hastobewrappedataco\n nvenientspacethatisnotthere.\n")
== 0);
xfree (buf);
nvc_release (pk);
pk = my_nvc_new ();
assert (pk);
err = gcry_sexp_build (&key, NULL, "(hello world)");
assert (err == 0);
assert (key);
if (private_key_mode)
{
err = nvc_set_private_key (pk, key);
assert (err == 0);
buf = nvc_to_string (pk);
assert (strcmp (buf, "Key: (hello world)\n") == 0);
xfree (buf);
}
else
{
err = nvc_set_private_key (pk, key);
assert (gpg_err_code (err) == GPG_ERR_MISSING_KEY);
}
gcry_sexp_release (key);
nvc_release (pk);
}
void
convert (const char *fname)
{
gpg_error_t err;
estream_t source;
gcry_sexp_t key;
char *buf;
size_t buflen;
struct stat st;
nvc_t pk;
source = es_fopen (fname, "rb");
if (source == NULL)
goto leave;
if (fstat (es_fileno (source), &st))
goto leave;
buflen = st.st_size;
buf = xtrymalloc (buflen+1);
assert (buf);
if (es_fread (buf, buflen, 1, source) != 1)
goto leave;
err = gcry_sexp_sscan (&key, NULL, buf, buflen);
if (err)
{
fprintf (stderr, "malformed s-expression in %s\n", fname);
exit (1);
}
pk = my_nvc_new ();
assert (pk);
err = nvc_set_private_key (pk, key);
assert (err == 0);
err = nvc_write (pk, es_stdout);
assert (err == 0);
return;
leave:
perror (fname);
exit (1);
}
void
parse (const char *fname)
{
gpg_error_t err;
estream_t source;
char *buf;
nvc_t pk_a, pk_b;
nve_t e;
int line;
source = es_fopen (fname, "rb");
if (source == NULL)
{
perror (fname);
exit (1);
}
if (private_key_mode)
err = nvc_parse_private_key (&pk_a, &line, source);
else
err = nvc_parse (&pk_a, &line, source);
if (err)
{
fprintf (stderr, "failed to parse %s line %d: %s\n",
fname, line, gpg_strerror (err));
exit (1);
}
buf = nvc_to_string (pk_a);
xfree (buf);
pk_b = my_nvc_new ();
assert (pk_b);
for (e = nvc_first (pk_a); e; e = nve_next (e))
{
gcry_sexp_t key = NULL;
if (private_key_mode && !strcasecmp (nve_name (e), "Key:"))
{
err = nvc_get_private_key (pk_a, &key);
if (err)
key = NULL;
}
if (key)
{
err = nvc_set_private_key (pk_b, key);
assert (err == 0);
}
else
{
err = nvc_add (pk_b, nve_name (e), nve_value (e));
assert (err == 0);
}
}
buf = nvc_to_string (pk_b);
if (verbose)
fprintf (stdout, "%s", buf);
xfree (buf);
}
void
print_usage (void)
{
fprintf (stderr,
"usage: t-private-keys [--verbose]"
" [--convert <private-key-file>"
" || --parse-key <extended-private-key-file>"
" || --parse <file> ]\n");
exit (2);
}
int
main (int argc, char **argv)
{
enum { TEST, CONVERT, PARSE, PARSEKEY } command = TEST;
if (argc)
{ argc--; argv++; }
if (argc && !strcmp (argv[0], "--verbose"))
{
verbose = 1;
argc--; argv++;
}
if (argc && !strcmp (argv[0], "--convert"))
{
command = CONVERT;
argc--; argv++;
if (argc != 1)
print_usage ();
}
if (argc && !strcmp (argv[0], "--parse-key"))
{
command = PARSEKEY;
argc--; argv++;
if (argc != 1)
print_usage ();
}
if (argc && !strcmp (argv[0], "--parse"))
{
command = PARSE;
argc--; argv++;
if (argc != 1)
print_usage ();
}
switch (command)
{
case TEST:
run_tests ();
run_modification_tests ();
private_key_mode = 1;
run_tests ();
run_modification_tests ();
break;
case CONVERT:
convert (*argv);
break;
case PARSEKEY:
private_key_mode = 1;
parse (*argv);
break;
case PARSE:
parse (*argv);
break;
}
return 0;
}
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