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/* t-data - Regression tests for the gpgme_data_t abstraction.
Copyright (C) 2001, 2004 g10 Code GmbH
This file is part of GPGME.
GPGME 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.
GPGME 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. */
/* We need to include config.h so that we know whether we are building
with large file system (LFS) support. */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <gpgme.h>
#define fail_if_err(a) do { if(a) { \
fprintf (stderr, "%s:%d: (%i) gpgme_error_t " \
"%s\n", __FILE__, __LINE__, round, \
gpgme_strerror(a)); \
exit (1); } \
} while(0)
static char *
make_filename (const char *fname)
{
const char *srcdir = getenv ("srcdir");
char *buf;
if (!srcdir)
srcdir = ".";
buf = malloc (strlen(srcdir) + strlen(fname) + 2 );
if (!buf)
{
fprintf (stderr, "%s:%d: could not allocate string: %s\n",
__FILE__, __LINE__, strerror (errno));
exit (1);
}
strcpy (buf, srcdir);
strcat (buf, "/");
strcat (buf, fname);
return buf;
}
typedef enum
{
TEST_INITIALIZER,
TEST_INVALID_ARGUMENT,
TEST_INOUT_NONE,
TEST_INOUT_MEM_NO_COPY,
TEST_INOUT_MEM_COPY,
TEST_INOUT_MEM_FROM_FILE_COPY,
TEST_INOUT_MEM_FROM_INEXISTANT_FILE,
TEST_INOUT_MEM_FROM_FILE_NO_COPY,
TEST_INOUT_MEM_FROM_FILE_PART_BY_NAME,
TEST_INOUT_MEM_FROM_INEXISTANT_FILE_PART,
TEST_INOUT_MEM_FROM_FILE_PART_BY_FP,
TEST_END
} round_t;
const char *text = "Just GNU it!\n";
const char *text2 = "Just GNU it!\nJust GNU it!\n";
int
read_cb (void *cb_value, char *buffer, size_t count, size_t *nread)
{
static int off = 0;
unsigned int amount = strlen (text) - off;
/* round_t round = *((round_t *) cb_value); */
(void)cb_value;
if (!buffer && !count && !nread)
{
/* Rewind requested. */
off = 0;
return 0;
}
if (! buffer || !nread)
return -1;
if (amount <= 0)
{
/* End of file. */
*nread = 0;
return -1;
}
if (amount > count)
amount = count;
memcpy (buffer, text, amount);
off += amount;
*nread = amount;
return 0;
}
void
read_once_test (round_t round, gpgme_data_t data)
{
char buffer[1024];
size_t read;
read = gpgme_data_read (data, buffer, sizeof (buffer));
if (read != strlen (text) || strncmp (buffer, text, strlen (text)))
{
fprintf (stderr, "%s:%d: (%i) gpgme_data_read returned wrong data\n",
__FILE__, __LINE__, round);
exit (1);
}
read = gpgme_data_read (data, buffer, sizeof (buffer));
if (read)
{
fprintf (stderr, "%s:%d: (%i) gpgme_data_read did not signal EOF\n",
__FILE__, __LINE__, round);
exit (1);
}
}
void
read_test (round_t round, gpgme_data_t data)
{
char buffer[1024];
size_t read;
if (round == TEST_INOUT_NONE)
{
read = gpgme_data_read (data, buffer, sizeof (buffer));
if (read > 0)
{
fprintf (stderr, "%s:%d: (%i) gpgme_data_read succeeded unexpectedly\n",
__FILE__, __LINE__, round);
exit (1);
}
return;
}
read_once_test (round, data);
gpgme_data_seek (data, 0, SEEK_SET);
read_once_test (round, data);
}
void
write_test (round_t round, gpgme_data_t data)
{
char buffer[1024];
size_t amt;
amt = gpgme_data_write (data, text, strlen (text));
if (amt != strlen (text))
fail_if_err (gpgme_error_from_errno (errno));
gpgme_data_seek (data, 0, SEEK_SET);
if (round == TEST_INOUT_NONE)
read_once_test (round, data);
else
{
amt = gpgme_data_read (data, buffer, sizeof (buffer));
if (amt != strlen (text2) || strncmp (buffer, text2, strlen (text2)))
{
fprintf (stderr, "%s:%d: (%i) gpgme_data_read returned wrong data\n",
__FILE__, __LINE__, round);
exit (1);
}
amt = gpgme_data_read (data, buffer, sizeof (buffer));
if (amt)
{
fprintf (stderr, "%s:%d: (%i) gpgme_data_read did not signal EOF\n",
__FILE__, __LINE__, round);
exit (1);
}
}
}
int
main (void)
{
round_t round = TEST_INITIALIZER;
char *text_filename = make_filename ("t-data-1.txt");
char *longer_text_filename = make_filename ("t-data-2.txt");
const char *missing_filename = "this-file-surely-does-not-exist";
gpgme_error_t err = 0;
gpgme_data_t data;
while (++round)
{
switch (round)
{
case TEST_INVALID_ARGUMENT:
err = gpgme_data_new (NULL);
if (!err)
{
fprintf (stderr, "%s:%d: gpgme_data_new on NULL pointer succeeded "
"unexpectedly\n", __FILE__, __LINE__);
exit (1);
}
continue;
case TEST_INOUT_NONE:
err = gpgme_data_new (&data);
break;
case TEST_INOUT_MEM_NO_COPY:
err = gpgme_data_new_from_mem (&data, text, strlen (text), 0);
break;
case TEST_INOUT_MEM_COPY:
err = gpgme_data_new_from_mem (&data, text, strlen (text), 1);
break;
case TEST_INOUT_MEM_FROM_FILE_COPY:
err = gpgme_data_new_from_file (&data, text_filename, 1);
break;
case TEST_INOUT_MEM_FROM_INEXISTANT_FILE:
err = gpgme_data_new_from_file (&data, missing_filename, 1);
if (!err)
{
fprintf (stderr, "%s:%d: gpgme_data_new_from_file on inexistant "
"file succeeded unexpectedly\n", __FILE__, __LINE__);
exit (1);
}
continue;
case TEST_INOUT_MEM_FROM_FILE_NO_COPY:
err = gpgme_data_new_from_file (&data, text_filename, 0);
/* This is not implemented yet. */
if (gpgme_err_code (err) == GPG_ERR_NOT_IMPLEMENTED
|| gpgme_err_code (err) == GPG_ERR_INV_VALUE)
continue;
break;
case TEST_INOUT_MEM_FROM_FILE_PART_BY_NAME:
err = gpgme_data_new_from_filepart (&data, longer_text_filename, 0,
strlen (text), strlen (text));
break;
case TEST_INOUT_MEM_FROM_INEXISTANT_FILE_PART:
err = gpgme_data_new_from_filepart (&data, missing_filename, 0,
strlen (text), strlen (text));
if (!err)
{
fprintf (stderr, "%s:%d: gpgme_data_new_from_file on inexistant "
"file succeeded unexpectedly\n", __FILE__, __LINE__);
exit (1);
}
continue;
case TEST_INOUT_MEM_FROM_FILE_PART_BY_FP:
{
FILE *fp = fopen (longer_text_filename, "rb");
if (! fp)
{
fprintf (stderr, "%s:%d: fopen: %s\n", __FILE__, __LINE__,
strerror (errno));
exit (1);
}
err = gpgme_data_new_from_filepart (&data, 0, fp,
strlen (text), strlen (text));
}
break;
case TEST_END:
goto out;
case TEST_INITIALIZER:
/* Shouldn't happen. */
fprintf (stderr, "%s:%d: impossible condition\n", __FILE__, __LINE__);
exit (1);
}
fail_if_err (err);
read_test (round, data);
write_test (round, data);
gpgme_data_release (data);
}
out:
free (text_filename);
free (longer_text_filename);
return 0;
}

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