[thirdparty/cups.git] / backend / ieee1284.c

/*
 * "$Id: ieee1284.c 5591 2006-05-26 19:51:59Z mike $"
 *
 *   IEEE-1284 support functions for the Common UNIX Printing System (CUPS).
 *
 *   Copyright 1997-2006 by Easy Software Products, all rights reserved.
 *
 *   These coded instructions, statements, and computer programs are the
 *   property of Easy Software Products and are protected by Federal
 *   copyright law.  Distribution and use rights are outlined in the file
 *   "LICENSE" which should have been included with this file.  If this
 *   file is missing or damaged please contact Easy Software Products
 *   at:
 *
 *       Attn: CUPS Licensing Information
 *       Easy Software Products
 *       44141 Airport View Drive, Suite 204
 *       Hollywood, Maryland 20636 USA
 *
 *       Voice: (301) 373-9600
 *       EMail: cups-info@cups.org
 *         WWW: http://www.cups.org
 *
 *   This file is subject to the Apple OS-Developed Software exception.
 *
 * Contents:
 *
 *   backendGetDeviceID()  - Get the IEEE-1284 device ID string and
 *                           corresponding URI.
 *   backendGetMakeModel() - Get the make and model string from the device ID.
 */

/*
 * Include necessary headers.
 */

#include "backend-private.h"

#ifdef __linux
#  include <sys/ioctl.h>
#  include <linux/lp.h>
#  define IOCNR_GET_DEVICE_ID		1
#  define LPIOC_GET_DEVICE_ID(len)	_IOC(_IOC_READ, 'P', IOCNR_GET_DEVICE_ID, len)
#endif /* __linux */

#ifdef __sun
#  ifdef __sparc
#    include <sys/ecppio.h>
#  else
#    include <sys/ioccom.h>
#    include <sys/ecppsys.h>
#  endif /* __sparc */
#endif /* __sun */


/*
 * 'backendGetDeviceID()' - Get the IEEE-1284 device ID string and
 *                          corresponding URI.
 */

int					/* O - 0 on success, -1 on failure */
backendGetDeviceID(
    int        fd,			/* I - File descriptor */
    char       *device_id,		/* O - 1284 device ID */
    int        device_id_size,		/* I - Size of buffer */
    char       *make_model,		/* O - Make/model */
    int        make_model_size,		/* I - Size of buffer */
    const char *scheme,			/* I - URI scheme */
    char       *uri,			/* O - Device URI */
    int        uri_size)		/* I - Size of buffer */
{
  char	*attr,				/* 1284 attribute */
  	*delim,				/* 1284 delimiter */
	*uriptr,			/* Pointer into URI */
	manufacturer[256],		/* Manufacturer string */
	serial_number[1024];		/* Serial number string */
  int	manulen;			/* Length of manufacturer string */
#ifdef __linux
  int	length;				/* Length of device ID info */
#endif /* __linux */
#if defined(__sun) && defined(ECPPIOC_GETDEVID)
  struct ecpp_device_id did;		/* Device ID buffer */
#endif /* __sun && ECPPIOC_GETDEVID */


  DEBUG_printf(("backendGetDeviceID(fd=%d, device_id=%p, device_id_size=%d, "
                "make_model=%p, make_model_size=%d, scheme=\"%s\", "
		"uri=%p, uri_size=%d)\n", fd, device_id, device_id_size,
		make_model, make_model_size, scheme ? scheme : "(null)",
		uri, uri_size));

 /*
  * Range check input...
  */

  if (fd < 0 ||
      !device_id || device_id_size < 32 ||
      !make_model || make_model_size < 32)
  {
    DEBUG_puts("backendGetDeviceID: Bad args!");
    return (-1);
  }

  *device_id  = '\0';
  *make_model = '\0';

  if (uri)
    *uri = '\0';

 /*
  * Get the device ID string...
  */

#ifdef __linux
  if (!ioctl(fd, LPIOC_GET_DEVICE_ID(device_id_size), device_id))
  {
   /*
    * Extract the length of the device ID string from the first two
    * bytes.  The 1284 spec says the length is stored MSB first...
    */

    length = (((unsigned)device_id[0] & 255) << 8) +
	     ((unsigned)device_id[1] & 255);

   /*
    * Check to see if the length is larger than our buffer; first
    * assume that the vendor incorrectly implemented the 1284 spec,
    * and then limit the length to the size of our buffer...
    */

    if (length > (device_id_size - 2))
      length = (((unsigned)device_id[1] & 255) << 8) +
	       ((unsigned)device_id[0] & 255);

    if (length > (device_id_size - 2))
      length = device_id_size - 2;

   /*
    * Copy the device ID text to the beginning of the buffer and
    * nul-terminate.
    */

    memmove(device_id, device_id + 2, length);
    device_id[length] = '\0';
  }
#  ifdef DEBUG
  else
    printf("backendGetDeviceID: ioctl failed - %s\n", strerror(errno));
#  endif /* DEBUG */
#endif /* __linux */

#if defined(__sun) && defined(ECPPIOC_GETDEVID)
  did.mode = ECPP_CENTRONICS;
  did.len  = device_id_size - 1;
  did.rlen = 0;
  did.addr = device_id;

  if (!ioctl(fd, ECPPIOC_GETDEVID, &did))
  {
   /*
    * Nul-terminate the device ID text.
    */

    if (did.rlen < (device_id_size - 1))
      device_id[did.rlen] = '\0';
    else
      device_id[device_id_size - 1] = '\0';
  }
#  ifdef DEBUG
  else
    printf("backendGetDeviceID: ioctl failed - %s\n", strerror(errno));
#  endif /* DEBUG */
#endif /* __sun && ECPPIOC_GETDEVID */

  DEBUG_printf(("backendGetDeviceID: device_id=\"%s\"\n", device_id));

  if (!*device_id)
    return (-1);

 /*
  * Get the make and model...
  */

  backendGetMakeModel(device_id, make_model, make_model_size);

 /*
  * Then generate a device URI...
  */

  if (scheme && uri && uri_size > 32)
  {
   /*
    * Look for the serial number field...
    */

    if ((attr = strstr(device_id, "SERN:")) != NULL)
      attr += 5;
    else if ((attr = strstr(device_id, "SERIALNUMBER:")) != NULL)
      attr += 13;
    else if ((attr = strstr(device_id, ";SN:")) != NULL)
      attr += 4;

    if (attr)
    {
      strlcpy(serial_number, attr, sizeof(serial_number));

      if ((delim = strchr(serial_number, ';')) != NULL)
	*delim = '\0';
    }
    else
      serial_number[0] = '\0';

   /*
    * Generate the device URI from the manufacturer, make_model, and
    * serial number strings.
    */

    snprintf(uri, uri_size, "%s://", scheme);

    if ((attr = strstr(device_id, "MANUFACTURER:")) != NULL)
      attr += 13;
    else if ((attr = strstr(device_id, "Manufacturer:")) != NULL)
      attr += 13;
    else if ((attr = strstr(device_id, "MFG:")) != NULL)
      attr += 4;

    if (attr)
    {
      strlcpy(manufacturer, attr, sizeof(manufacturer));

      if ((delim = strchr(manufacturer, ';')) != NULL)
        *delim = '\0';

      if (!strcasecmp(manufacturer, "Hewlett-Packard"))
        strcpy(manufacturer, "HP");
    }
    else
    {
      strlcpy(manufacturer, make_model, sizeof(manufacturer));

      if ((delim = strchr(manufacturer, ' ')) != NULL)
        *delim = '\0';
    }

    manulen = strlen(manufacturer);

    for (uriptr = uri + strlen(uri), delim = manufacturer;
	 *delim && uriptr < (uri + uri_size - 3);
	 delim ++)
      if (*delim == ' ')
      {
	*uriptr++ = '%';
	*uriptr++ = '2';
	*uriptr++ = '0';
      }
      else
	*uriptr++ = *delim;

    *uriptr++ = '/';

    if (!strncasecmp(make_model, manufacturer, manulen))
    {
      delim = make_model + manulen;

      while (isspace(*delim & 255))
        delim ++;
    }
    else
      delim = make_model;

    for (; *delim && uriptr < (uri + uri_size - 3); delim ++)
      if (*delim == ' ')
      {
	*uriptr++ = '%';
	*uriptr++ = '2';
	*uriptr++ = '0';
      }
      else
	*uriptr++ = *delim;

    if (serial_number[0])
    {
     /*
      * Add the serial number to the URI...
      */

      strlcpy(uriptr, "?serial=", uri_size - (uriptr - uri));
      strlcat(uriptr, serial_number, uri_size - (uriptr - uri));
    }
    else
      *uriptr = '\0';
  }

  return (0);
}


/*
 * 'backendGetMakeModel()' - Get the make and model string from the device ID.
 */

int					/* O - 0 on success, -1 on failure */
backendGetMakeModel(
    const char *device_id,		/* O - 1284 device ID */
    char       *make_model,		/* O - Make/model */
    int        make_model_size)		/* I - Size of buffer */
{
  char	*attr,				/* 1284 attribute */
  	*delim,				/* 1284 delimiter */
	*mfg,				/* Manufacturer string */
	*mdl;				/* Model string */


  DEBUG_printf(("backendGetMakeModel(device_id=\"%s\", "
                "make_model=%p, make_model_size=%d)\n", device_id,
		make_model, make_model_size));

 /*
  * Range check input...
  */

  if (!device_id || !*device_id || !make_model || make_model_size < 32)
  {
    DEBUG_puts("backendGetMakeModel: Bad args!");
    return (-1);
  }

  *make_model = '\0';

 /*
  * Look for the description field...
  */

  if ((attr = strstr(device_id, "DES:")) != NULL)
    attr += 4;
  else if ((attr = strstr(device_id, "DESCRIPTION:")) != NULL)
    attr += 12;

  if (attr)
  {
   /*
    * Make sure the description contains something useful, since some
    * printer manufacturers (HP) apparently don't follow the standards
    * they helped to define...
    *
    * Here we require the description to be 8 or more characters in length,
    * containing at least one space and one letter.
    */

    if ((delim = strchr(attr, ';')) == NULL)
      delim = attr + strlen(attr);

    if ((delim - attr) < 8)
      attr = NULL;
    else
    {
      char	*ptr;			/* Pointer into description */
      int	letters,		/* Number of letters seen */
		spaces;			/* Number of spaces seen */


      for (ptr = attr, letters = 0, spaces = 0; ptr < delim; ptr ++)
      {
        if (isspace(*ptr & 255))
	  spaces ++;
	else if (isalpha(*ptr & 255))
	  letters ++;

        if (spaces && letters)
	  break;
      }

      if (!spaces || !letters)
        attr = NULL;
    }
  }

  if ((mfg = strstr(device_id, "MANUFACTURER:")) != NULL)
    mfg += 13;
  else if ((mfg = strstr(device_id, "Manufacturer:")) != NULL)
    mfg += 13;
  else if ((mfg = strstr(device_id, "MFG:")) != NULL)
    mfg += 4;

  if ((mdl = strstr(device_id, "MODEL:")) != NULL)
    mdl += 6;
  else if ((mdl = strstr(device_id, "Model:")) != NULL)
    mdl += 6;
  else if ((mdl = strstr(device_id, "MDL:")) != NULL)
    mdl += 4;

  if (mdl)
  {
   /*
    * Build a make-model string from the manufacturer and model attributes...
    */

    if (mfg)
    {
      if (!strncasecmp(mfg, "Hewlett-Packard", 15))
	strlcpy(make_model, "HP", make_model_size);
      else
	strlcpy(make_model, mfg, make_model_size);

      if ((delim = strchr(make_model, ';')) != NULL)
	*delim = '\0';

      if (!strncasecmp(make_model, mdl, strlen(make_model)))
      {
       /*
	* Just copy model string, since it has the manufacturer...
	*/

	strlcpy(make_model, mdl, make_model_size);
      }
      else
      {
       /*
	* Concatenate the make and model...
	*/

	strlcat(make_model, " ", make_model_size);
	strlcat(make_model, mdl, make_model_size);
      }
    }
    else
    {
     /*
      * Just copy model string, since it has the manufacturer...
      */

      strlcpy(make_model, mdl, make_model_size);
    }
  }
  else if (attr)
  {
   /*
    * Use description...
    */

    if (!strncasecmp(attr, "Hewlett-Packard hp ", 19))
    {
     /*
      * Check for a common HP bug...
      */

      strlcpy(make_model, "HP ", make_model_size);
      strlcpy(make_model + 3, attr + 19, make_model_size - 3);
    }
    else if (!strncasecmp(attr, "Hewlett-Packard ", 16))
    {
      strlcpy(make_model, "HP ", make_model_size);
      strlcpy(make_model + 3, attr + 16, make_model_size - 3);
    }
    else
    {
      strlcpy(make_model, attr, make_model_size);
    }
  }
  else
  {
   /*
    * Use "Unknown" as the printer make and model...
    */

    strlcpy(make_model, "Unknown", make_model_size);
  }

 /*
  * Strip trailing data...
  */

  if ((delim = strchr(make_model, ';')) != NULL)
    *delim = '\0';

 /*
  * Strip trailing whitespace...
  */

  for (delim = make_model + strlen(make_model) - 1; delim >= make_model; delim --)
    if (isspace(*delim & 255))
      *delim = '\0';
    else
      break;

 /*
  * Return...
  */

  if (make_model[0])
    return (0);
  else
    return (-1);
}


/*
 * End of "$Id: ieee1284.c 5591 2006-05-26 19:51:59Z mike $".
 */
Commit	Line	Data
ef416fc2	1	/*
f7faf1f5	2	* "$Id: ieee1284.c 5591 2006-05-26 19:51:59Z mike $"
ef416fc2	3	*
	4	* IEEE-1284 support functions for the Common UNIX Printing System (CUPS).
	5	*
	6	* Copyright 1997-2006 by Easy Software Products, all rights reserved.
	7	*
	8	* These coded instructions, statements, and computer programs are the
	9	* property of Easy Software Products and are protected by Federal
	10	* copyright law. Distribution and use rights are outlined in the file
	11	* "LICENSE" which should have been included with this file. If this
	12	* file is missing or damaged please contact Easy Software Products
	13	* at:
	14	*
	15	* Attn: CUPS Licensing Information
	16	* Easy Software Products
	17	* 44141 Airport View Drive, Suite 204
	18	* Hollywood, Maryland 20636 USA
	19	*
	20	* Voice: (301) 373-9600
	21	* EMail: cups-info@cups.org
	22	* WWW: http://www.cups.org
	23	*
	24	* This file is subject to the Apple OS-Developed Software exception.
	25	*
	26	* Contents:
	27	*
ed486911	28	* backendGetDeviceID() - Get the IEEE-1284 device ID string and
	29	* corresponding URI.
	30	* backendGetMakeModel() - Get the make and model string from the device ID.
ef416fc2	31	*/
	32
	33	/*
	34	* Include necessary headers.
	35	*/
	36
ed486911	37	#include "backend-private.h"
ef416fc2	38
ed486911	39	#ifdef __linux
	40	# include <sys/ioctl.h>
	41	# include <linux/lp.h>
	42	# define IOCNR_GET_DEVICE_ID 1
	43	# define LPIOC_GET_DEVICE_ID(len) _IOC(_IOC_READ, 'P', IOCNR_GET_DEVICE_ID, len)
	44	#endif /* __linux */
89d46774	45
ed486911	46	#ifdef __sun
	47	# ifdef __sparc
	48	# include <sys/ecppio.h>
	49	# else
	50	# include <sys/ioccom.h>
	51	# include <sys/ecppsys.h>
	52	# endif /* __sparc */
	53	#endif /* __sun */
ef416fc2	54
	55
	56	/*
ed486911	57	* 'backendGetDeviceID()' - Get the IEEE-1284 device ID string and
ed486911	58	* corresponding URI.
ef416fc2	59	*/
	60
	61	int /* O - 0 on success, -1 on failure */
ed486911	62	backendGetDeviceID(
ef416fc2	63	int fd, /* I - File descriptor */
	64	char device_id, / O - 1284 device ID */
	65	int device_id_size, /* I - Size of buffer */
	66	char make_model, / O - Make/model */
	67	int make_model_size, /* I - Size of buffer */
	68	const char scheme, / I - URI scheme */
	69	char uri, / O - Device URI */
	70	int uri_size) /* I - Size of buffer */
	71	{
	72	char attr, / 1284 attribute */
	73	delim, / 1284 delimiter */
	74	uriptr, / Pointer into URI */
89d46774	75	manufacturer[256], /* Manufacturer string */
ef416fc2	76	serial_number[1024]; /* Serial number string */
89d46774	77	int manulen; /* Length of manufacturer string */
ef416fc2	78	#ifdef __linux
	79	int length; /* Length of device ID info */
	80	#endif /* __linux */
b423cd4c	81	#if defined(__sun) && defined(ECPPIOC_GETDEVID)
ef416fc2	82	struct ecpp_device_id did; /* Device ID buffer */
b423cd4c	83	#endif /* __sun && ECPPIOC_GETDEVID */
ef416fc2	84
89d46774	85
ed486911	86	DEBUG_printf(("backendGetDeviceID(fd=%d, device_id=%p, device_id_size=%d, "
ef416fc2	87	"make_model=%p, make_model_size=%d, scheme=\"%s\", "
	88	"uri=%p, uri_size=%d)\n", fd, device_id, device_id_size,
	89	make_model, make_model_size, scheme ? scheme : "(null)",
	90	uri, uri_size));
	91
	92	/*
	93	* Range check input...
	94	*/
	95
	96	if (fd < 0 \|\|
	97	!device_id \|\| device_id_size < 32 \|\|
	98	!make_model \|\| make_model_size < 32)
	99	{
ed486911	100	DEBUG_puts("backendGetDeviceID: Bad args!");
ef416fc2	101	return (-1);
	102	}
	103
	104	*device_id = '\0';
	105	*make_model = '\0';
	106
	107	if (uri)
	108	*uri = '\0';
	109
	110	/*
	111	* Get the device ID string...
	112	*/
	113
	114	#ifdef __linux
	115	if (!ioctl(fd, LPIOC_GET_DEVICE_ID(device_id_size), device_id))
	116	{
	117	/*
	118	* Extract the length of the device ID string from the first two
	119	* bytes. The 1284 spec says the length is stored MSB first...
	120	*/
	121
	122	length = (((unsigned)device_id[0] & 255) << 8) +
	123	((unsigned)device_id[1] & 255);
	124
	125	/*
	126	* Check to see if the length is larger than our buffer; first
	127	* assume that the vendor incorrectly implemented the 1284 spec,
	128	* and then limit the length to the size of our buffer...
	129	*/
	130
	131	if (length > (device_id_size - 2))
	132	length = (((unsigned)device_id[1] & 255) << 8) +
	133	((unsigned)device_id[0] & 255);
	134
	135	if (length > (device_id_size - 2))
	136	length = device_id_size - 2;
	137
	138	/*
	139	* Copy the device ID text to the beginning of the buffer and
	140	* nul-terminate.
	141	*/
	142
	143	memmove(device_id, device_id + 2, length);
	144	device_id[length] = '\0';
	145	}
	146	# ifdef DEBUG
	147	else
ed486911	148	printf("backendGetDeviceID: ioctl failed - %s\n", strerror(errno));
ef416fc2	149	# endif /* DEBUG */
	150	#endif /* __linux */
	151
	152	#if defined(__sun) && defined(ECPPIOC_GETDEVID)
	153	did.mode = ECPP_CENTRONICS;
	154	did.len = device_id_size - 1;
	155	did.rlen = 0;
	156	did.addr = device_id;
	157
	158	if (!ioctl(fd, ECPPIOC_GETDEVID, &did))
	159	{
	160	/*
	161	* Nul-terminate the device ID text.
	162	*/
	163
	164	if (did.rlen < (device_id_size - 1))
	165	device_id[did.rlen] = '\0';
	166	else
	167	device_id[device_id_size - 1] = '\0';
	168	}
	169	# ifdef DEBUG
	170	else
ed486911	171	printf("backendGetDeviceID: ioctl failed - %s\n", strerror(errno));
ef416fc2	172	# endif /* DEBUG */
	173	#endif /* __sun && ECPPIOC_GETDEVID */
	174
ed486911	175	DEBUG_printf(("backendGetDeviceID: device_id=\"%s\"\n", device_id));
ef416fc2	176
	177	if (!*device_id)
	178	return (-1);
	179
89d46774	180	/*
	181	* Get the make and model...
	182	*/
	183
ed486911	184	backendGetMakeModel(device_id, make_model, make_model_size);
89d46774	185
	186	/*
	187	* Then generate a device URI...
	188	*/
	189
	190	if (scheme && uri && uri_size > 32)
	191	{
	192	/*
	193	* Look for the serial number field...
	194	*/
	195
	196	if ((attr = strstr(device_id, "SERN:")) != NULL)
	197	attr += 5;
	198	else if ((attr = strstr(device_id, "SERIALNUMBER:")) != NULL)
	199	attr += 13;
	200	else if ((attr = strstr(device_id, ";SN:")) != NULL)
	201	attr += 4;
	202
	203	if (attr)
	204	{
	205	strlcpy(serial_number, attr, sizeof(serial_number));
	206
	207	if ((delim = strchr(serial_number, ';')) != NULL)
	208	*delim = '\0';
	209	}
	210	else
	211	serial_number[0] = '\0';
	212
	213	/*
	214	* Generate the device URI from the manufacturer, make_model, and
	215	* serial number strings.
	216	*/
	217
	218	snprintf(uri, uri_size, "%s://", scheme);
	219
	220	if ((attr = strstr(device_id, "MANUFACTURER:")) != NULL)
	221	attr += 13;
	222	else if ((attr = strstr(device_id, "Manufacturer:")) != NULL)
	223	attr += 13;
	224	else if ((attr = strstr(device_id, "MFG:")) != NULL)
	225	attr += 4;
	226
	227	if (attr)
	228	{
	229	strlcpy(manufacturer, attr, sizeof(manufacturer));
	230
	231	if ((delim = strchr(manufacturer, ';')) != NULL)
	232	*delim = '\0';
	233
	234	if (!strcasecmp(manufacturer, "Hewlett-Packard"))
	235	strcpy(manufacturer, "HP");
	236	}
	237	else
	238	{
	239	strlcpy(manufacturer, make_model, sizeof(manufacturer));
	240
	241	if ((delim = strchr(manufacturer, ' ')) != NULL)
	242	*delim = '\0';
	243	}
	244
	245	manulen = strlen(manufacturer);
	246
	247	for (uriptr = uri + strlen(uri), delim = manufacturer;
	248	*delim && uriptr < (uri + uri_size - 3);
249	delim ++)
250	if (*delim == ' ')
251	{
252	*uriptr++ = '%';
253	*uriptr++ = '2';
254	*uriptr++ = '0';
255	}
256	else
257	uriptr++ = delim;
258
259	*uriptr++ = '/';
260
261	if (!strncasecmp(make_model, manufacturer, manulen))
262	{
263	delim = make_model + manulen;
264
265	while (isspace(*delim & 255))
266	delim ++;
267	}
268	else
269	delim = make_model;
270
271	for (; *delim && uriptr < (uri + uri_size - 3); delim ++)
272	if (*delim == ' ')
273	{
274	*uriptr++ = '%';
275	*uriptr++ = '2';
276	*uriptr++ = '0';
277	}
278	else
279	uriptr++ = delim;
280
281	if (serial_number[0])
282	{
283	/*
284	* Add the serial number to the URI...
285	*/
286
287	strlcpy(uriptr, "?serial=", uri_size - (uriptr - uri));
288	strlcat(uriptr, serial_number, uri_size - (uriptr - uri));
289	}
290	else
291	*uriptr = '\0';
292	}
293
294	return (0);
295	}
89d46774	296
	297
	298	/*
ed486911	299	* 'backendGetMakeModel()' - Get the make and model string from the device ID.
89d46774	300	*/
	301
	302	int /* O - 0 on success, -1 on failure */
ed486911	303	backendGetMakeModel(
89d46774	304	const char device_id, / O - 1284 device ID */
	305	char make_model, / O - Make/model */
	306	int make_model_size) /* I - Size of buffer */
	307	{
	308	char attr, / 1284 attribute */
	309	delim, / 1284 delimiter */
	310	mfg, / Manufacturer string */
	311	mdl; / Model string */
	312
	313
ed486911	314	DEBUG_printf(("backendGetMakeModel(device_id=\"%s\", "
89d46774	315	"make_model=%p, make_model_size=%d)\n", device_id,
	316	make_model, make_model_size));
	317
	318	/*
	319	* Range check input...
	320	*/
	321
	322	if (!device_id \|\| !*device_id \|\| !make_model \|\| make_model_size < 32)
	323	{
ed486911	324	DEBUG_puts("backendGetMakeModel: Bad args!");
89d46774	325	return (-1);
	326	}
	327
	328	*make_model = '\0';
	329
ef416fc2	330	/*
	331	* Look for the description field...
	332	*/
	333
	334	if ((attr = strstr(device_id, "DES:")) != NULL)
	335	attr += 4;
	336	else if ((attr = strstr(device_id, "DESCRIPTION:")) != NULL)
	337	attr += 12;
	338
	339	if (attr)
	340	{
	341	/*
	342	* Make sure the description contains something useful, since some
	343	* printer manufacturers (HP) apparently don't follow the standards
	344	* they helped to define...
	345	*
	346	* Here we require the description to be 8 or more characters in length,
	347	* containing at least one space and one letter.
	348	*/
	349
	350	if ((delim = strchr(attr, ';')) == NULL)
	351	delim = attr + strlen(attr);
	352
	353	if ((delim - attr) < 8)
	354	attr = NULL;
	355	else
	356	{
	357	char ptr; / Pointer into description */
	358	int letters, /* Number of letters seen */
	359	spaces; /* Number of spaces seen */
	360
	361
	362	for (ptr = attr, letters = 0, spaces = 0; ptr < delim; ptr ++)
	363	{
	364	if (isspace(*ptr & 255))
	365	spaces ++;
	366	else if (isalpha(*ptr & 255))
	367	letters ++;
	368
	369	if (spaces && letters)
	370	break;
	371	}
	372
	373	if (!spaces \|\| !letters)
	374	attr = NULL;
	375	}
	376	}
	377
	378	if ((mfg = strstr(device_id, "MANUFACTURER:")) != NULL)
	379	mfg += 13;
89d46774	380	else if ((mfg = strstr(device_id, "Manufacturer:")) != NULL)
89d46774	381	mfg += 13;
ef416fc2	382	else if ((mfg = strstr(device_id, "MFG:")) != NULL)
	383	mfg += 4;
	384
	385	if ((mdl = strstr(device_id, "MODEL:")) != NULL)
	386	mdl += 6;
89d46774	387	else if ((mdl = strstr(device_id, "Model:")) != NULL)
89d46774	388	mdl += 6;
ef416fc2	389	else if ((mdl = strstr(device_id, "MDL:")) != NULL)
	390	mdl += 4;
	391
89d46774	392	if (mdl)
ef416fc2	393	{
ef416fc2	394	/*
89d46774	395	* Build a make-model string from the manufacturer and model attributes...
ef416fc2	396	*/
ef416fc2	397
89d46774	398	if (mfg)
ef416fc2	399	{
89d46774	400	if (!strncasecmp(mfg, "Hewlett-Packard", 15))
	401	strlcpy(make_model, "HP", make_model_size);
	402	else
	403	strlcpy(make_model, mfg, make_model_size);
ef416fc2	404
89d46774	405	if ((delim = strchr(make_model, ';')) != NULL)
	406	*delim = '\0';
	407
	408	if (!strncasecmp(make_model, mdl, strlen(make_model)))
	409	{
	410	/*
	411	* Just copy model string, since it has the manufacturer...
	412	*/
	413
	414	strlcpy(make_model, mdl, make_model_size);
	415	}
	416	else
	417	{
	418	/*
	419	* Concatenate the make and model...
	420	*/
	421
	422	strlcat(make_model, " ", make_model_size);
	423	strlcat(make_model, mdl, make_model_size);
	424	}
ef416fc2	425	}
	426	else
	427	{
89d46774	428	/*
	429	* Just copy model string, since it has the manufacturer...
	430	*/
	431
	432	strlcpy(make_model, mdl, make_model_size);
ef416fc2	433	}
ef416fc2	434	}
89d46774	435	else if (attr)
ef416fc2	436	{
ef416fc2	437	/*
89d46774	438	* Use description...
ef416fc2	439	*/
ef416fc2	440
89d46774	441	if (!strncasecmp(attr, "Hewlett-Packard hp ", 19))
ef416fc2	442	{
ef416fc2	443	/*
89d46774	444	* Check for a common HP bug...
ef416fc2	445	*/
ef416fc2	446
89d46774	447	strlcpy(make_model, "HP ", make_model_size);
	448	strlcpy(make_model + 3, attr + 19, make_model_size - 3);
	449	}
	450	else if (!strncasecmp(attr, "Hewlett-Packard ", 16))
	451	{
	452	strlcpy(make_model, "HP ", make_model_size);
	453	strlcpy(make_model + 3, attr + 16, make_model_size - 3);
ef416fc2	454	}
	455	else
	456	{
89d46774	457	strlcpy(make_model, attr, make_model_size);
ef416fc2	458	}
	459	}
	460	else
	461	{
	462	/*
	463	* Use "Unknown" as the printer make and model...
	464	*/
	465
	466	strlcpy(make_model, "Unknown", make_model_size);
	467	}
	468
89d46774	469	/*
	470	* Strip trailing data...
	471	*/
	472
ef416fc2	473	if ((delim = strchr(make_model, ';')) != NULL)
	474	*delim = '\0';
	475
89d46774	476	/*
	477	* Strip trailing whitespace...
	478	*/
ef416fc2	479
89d46774	480	for (delim = make_model + strlen(make_model) - 1; delim >= make_model; delim --)
	481	if (isspace(*delim & 255))
	482	*delim = '\0';
ef416fc2	483	else
89d46774	484	break;
ef416fc2	485
89d46774	486	/*
	487	* Return...
	488	*/
ef416fc2	489
89d46774	490	if (make_model[0])
	491	return (0);
	492	else
	493	return (-1);
ef416fc2	494	}
	495
	496
	497	/*
f7faf1f5	498	* End of "$Id: ieee1284.c 5591 2006-05-26 19:51:59Z mike $".
ef416fc2	499	*/