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/* -*- mode: C; c-file-style: "gnu" -*- */
/* dbus-uuidgen.c Utility program to create UUIDs
*
* Copyright (C) 2006 Red Hat, Inc.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dbus/dbus-uuidgen.h>
#include <dbus/dbus.h>
static void
usage (char *name, int ecode)
{
if (name == NULL)
name = "dbus-uuidgen";
fprintf (stderr, "Usage: %s [--ensure[=FILENAME]] [--get[=FILENAME]]\n", name);
exit (ecode);
}
static void
version (void)
{
printf ("D-Bus UUID Generator %s\n"
"Copyright (C) 2006 Red Hat, Inc.\n"
"This is free software; see the source for copying conditions.\n"
"There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n",
VERSION);
exit (0);
}
static dbus_bool_t
get_arg (const char *arg,
const char *option,
const char **value_p)
{
const char *fn;
if (strlen(arg) < strlen(option))
return FALSE;
fn = arg + strlen(option);
if (!(*fn == '=' || *fn == ' ' || *fn == '\0'))
{
usage (NULL, 1);
}
if (*fn == '=')
++fn;
while (*fn == ' ' && *fn != '\0')
++fn;
if (*fn != '\0')
{
*value_p = fn;
return TRUE;
}
return FALSE;
}
int
main (int argc, char *argv[])
{
int i;
const char *filename;
dbus_bool_t ensure_uuid;
dbus_bool_t get_uuid;
DBusError error;
ensure_uuid = FALSE;
get_uuid = FALSE;
filename = NULL;
for (i = 1; i < argc; i++)
{
char *arg = argv[i];
if (strncmp (arg, "--ensure", strlen("--ensure")) == 0)
{
get_arg (arg, "--ensure", &filename);
ensure_uuid = TRUE;
}
else if (strncmp (arg, "--get", strlen("--get")) == 0)
{
get_arg (arg, "--get", &filename);
get_uuid = TRUE;
}
else if (strcmp (arg, "--help") == 0)
usage (argv[0], 0);
else if (strcmp (arg, "--version") == 0)
version ();
else
usage (argv[0], 1);
}
if (get_uuid && ensure_uuid)
{
fprintf (stderr, "Can't specify both --get and --ensure\n");
exit (1);
}
dbus_error_init (&error);
if (get_uuid || ensure_uuid)
{
char *uuid;
if (dbus_internal_do_not_use_get_uuid (filename, &uuid, ensure_uuid, &error))
{
if (get_uuid) /* print nothing on --ensure */
printf ("%s\n", uuid);
dbus_free (uuid);
}
}
else
{
char *uuid;
if (dbus_internal_do_not_use_create_uuid (&uuid))
{
printf ("%s\n", uuid);
dbus_free (uuid);
}
else
{
dbus_set_error (&error, DBUS_ERROR_NO_MEMORY, "No memory");
}
}
if (dbus_error_is_set (&error))
{
fprintf (stderr, "%s\n", error.message);
dbus_error_free (&error);
exit (1);
}
else
{
exit (0);
}
}
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