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/***************************************************************************
*
* probe-printer.c : Probe for prnio(4I) printer device information
*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Licensed under the Academic Free License version 2.1
*
**************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <errno.h>
#include <string.h>
#include <strings.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/param.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/ioctl.h>
#include <sys/prnio.h>
#include <fcntl.h>
#include <unistd.h>
#include <ctype.h>
#include <libhal.h>
#include <logger.h>
#include "printer.h"
static int
prnio_printer_info(char *device_file, char **manufacturer, char **model,
char **description, char **serial_number, char ***command_set)
{
struct prn_1284_device_id id;
char buf[BUFSIZ];
int fd = -1, rc = -1;
memset(&id, 0, sizeof (id));
memset(&buf, 0, sizeof (buf));
id.id_data = buf;
id.id_len = sizeof (buf);
if ((fd = open (device_file, O_RDONLY | O_NONBLOCK)) < 0) {
goto prnio_out;
}
if (ioctl(fd, PRNIOC_GET_1284_DEVID, &id) < 0) {
goto prnio_out;
}
HAL_DEBUG(("IEEE-1284 DeviceId = %s", buf));
rc = ieee1284_devid_to_printer_info(buf, manufacturer, model,
description, NULL, serial_number, command_set);
prnio_out:
if (fd != -1)
close(fd);
return (rc);
}
/*
* It is assumed that all devices that support prnio(4I), also have a link
* in /dev/printers.
*/
static char *
prnio_device_name(void)
{
char *result = NULL;
char *devfs_path;
DIR *dp;
if (((devfs_path = getenv("HAL_PROP_SOLARIS_DEVFS_PATH")) != NULL) &&
((dp = opendir("/dev/printers")) != NULL)) {
struct dirent *ep;
while ((ep = readdir(dp)) != NULL) {
char path[MAXPATHLEN], lpath[MAXPATHLEN];
snprintf(path, sizeof (path), "/dev/printers/%s",
ep->d_name);
memset(lpath, 0, sizeof (lpath));
if ((readlink(path, lpath, sizeof (lpath)) > 0) &&
(strstr(lpath, devfs_path) != NULL)) {
result = strdup(path);
break;
}
}
closedir(dp);
}
return (result);
}
int
main(int argc, char *argv[])
{
int ret = 1;
char *udi;
char *device_file;
char *manufacturer = NULL,
*model = NULL,
*serial_number = NULL,
*description = NULL,
**command_set = NULL;
DBusError error;
LibHalContext *ctx = NULL;
LibHalChangeSet *cs = NULL;
if ((udi = getenv("UDI")) == NULL)
goto out;
if ((device_file = getenv("HAL_PROP_PRINTER_DEVICE")) == NULL)
device_file = prnio_device_name();
if (device_file == NULL)
goto out;
setup_logger();
dbus_error_init(&error);
if ((ctx = libhal_ctx_init_direct(&error)) == NULL)
goto out;
if ((cs = libhal_device_new_changeset(udi)) == NULL) {
HAL_DEBUG(("Cannot allocate changeset"));
goto out;
}
/* Probe the printer for characteristics via prnio(4I) */
ret = prnio_printer_info(device_file, &manufacturer, &model,
&description, &serial_number, &command_set);
if (ret < 0) {
HAL_DEBUG(("Cannot get prnio data for %s: %s",
device_file, strerror(errno)));
goto out;
}
/* Add printer characteristics to the HAL device tree */
ret = add_printer_info(cs, udi, manufacturer, model, description,
serial_number, command_set, device_file);
if (ret < 0) {
HAL_DEBUG(("Cannot add printer data for %s to %s: %s",
device_file, udi, strerror(errno)));
goto out;
}
libhal_device_commit_changeset(ctx, cs, &error);
ret = 0;
out:
if (cs != NULL) {
libhal_device_free_changeset(cs);
}
if (ctx != NULL) {
if (dbus_error_is_set(&error)) {
dbus_error_free(&error);
}
libhal_ctx_shutdown(ctx, &error);
libhal_ctx_free(ctx);
}
return (ret);
}
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