[deliverable/binutils-gdb.git] / bfd / vmsutil.c

/* vmsutil.c -- Utilities for VMS.
   Copyright 2009 Free Software Foundation, Inc.

   Written by Douglas B Rupp <rupp@gnat.com>

   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 3 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */

#include "sysdep.h"
#include "vmsutil.h"

/* The purspose of the two alternate versions below is to have one that
   works for native VMS and one that works on an NFS mounted filesystem
   (Unix Server/VMS client).  The main issue being to generate the special
   VMS file timestamps for the debug info.  */

#ifdef VMS
#define __NEW_STARLET 1
#include <vms/starlet.h>
#include <vms/rms.h>
#include <vms/atrdef.h>
#include <vms/fibdef.h>
#include <vms/stsdef.h>
#include <vms/iodef.h>
#include <vms/fatdef.h>
#include <errno.h>
#include <vms/descrip.h>
#include <string.h>
#include <unixlib.h>

#define MAXPATH 256

/* Descrip.h doesn't have everything...  */
typedef struct fibdef * __fibdef_ptr32 __attribute__ (( mode (SI) ));

struct dsc$descriptor_fib
{
  unsigned int   fib$l_len;
  __fibdef_ptr32 fib$l_addr;
};

/* I/O Status Block.  */
struct IOSB
{
  unsigned short status, count;
  unsigned int devdep;
};

static char *tryfile;

/* Variable length string.  */
struct vstring
{
  short length;
  char string[NAM$C_MAXRSS+1];
};

static char filename_buff [MAXPATH];
static char vms_filespec [MAXPATH];

/* Callback function for filespec style conversion.  */

static int
translate_unix (char *name, int type ATTRIBUTE_UNUSED)
{
  strncpy (filename_buff, name, MAXPATH);
  filename_buff [MAXPATH - 1] = (char) 0;
  return 0;
}

/* Wrapper for DECC function that converts a Unix filespec
   to VMS style filespec.  */

static char *
to_vms_file_spec (char *filespec)
{
  strncpy (vms_filespec, "", MAXPATH);
  decc$to_vms (filespec, translate_unix, 1, 1);
  strncpy (vms_filespec, filename_buff, MAXPATH);

  vms_filespec [MAXPATH - 1] = (char) 0;

  return vms_filespec;
}

#else /* not VMS */

#define _BSD_SOURCE 1
#include <sys/stat.h>
#include <time.h>

#define VMS_EPOCH_OFFSET        35067168000000000LL
#define VMS_GRANULARITY_FACTOR  10000000

#endif /* VMS */

/* Return VMS file date, size, format, version given a name.  */

int
vms_file_stats_name (const char *filename,
		     long long *cdt,
		     long *siz,
		     char *rfo,
		     int *ver)
{
#ifdef VMS
  struct FAB fab;
  struct NAM nam;

  unsigned long long create;
  FAT recattr;
  char ascnamebuff [256];

  ATRDEF atrlst[]
    = {
      { ATR$S_CREDATE,  ATR$C_CREDATE,  &create },
      { ATR$S_RECATTR,  ATR$C_RECATTR,  &recattr },
      { ATR$S_ASCNAME,  ATR$C_ASCNAME,  &ascnamebuff },
      { 0, 0, 0}
    };

  FIBDEF fib;
  struct dsc$descriptor_fib fibdsc = {sizeof (fib), (void *) &fib};

  struct IOSB iosb;

  long status;
  unsigned short chan;

  struct vstring file;
  struct dsc$descriptor_s filedsc
    = {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) file.string};
  struct vstring device;
  struct dsc$descriptor_s devicedsc
    = {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) device.string};
  struct vstring result;
  struct dsc$descriptor_s resultdsc
    = {NAM$C_MAXRSS, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, (void *) result.string};

  if (strcmp (filename, "<internal>") == 0
      || strcmp (filename, "<built-in>") == 0)
    {
      if (cdt)
	*cdt = 0;

      if (siz)
	*siz = 0;

      if (rfo)
	*rfo = 0;

      if (ver)
        *ver = 0;

      return 0;
    }

  tryfile = to_vms_file_spec ((char *) filename);

  /* Allocate and initialize a FAB and NAM structures.  */
  fab = cc$rms_fab;
  nam = cc$rms_nam;

  nam.nam$l_esa = file.string;
  nam.nam$b_ess = NAM$C_MAXRSS;
  nam.nam$l_rsa = result.string;
  nam.nam$b_rss = NAM$C_MAXRSS;
  fab.fab$l_fna = tryfile;
  fab.fab$b_fns = strlen (tryfile);
  fab.fab$l_nam = &nam;

  /* Validate filespec syntax and device existence.  */
  status = SYS$PARSE (&fab, 0, 0);
  if ((status & 1) != 1)
    return 1;

  file.string[nam.nam$b_esl] = 0;

  /* Find matching filespec.  */
  status = SYS$SEARCH (&fab, 0, 0);
  if ((status & 1) != 1)
    return 1;

  file.string[nam.nam$b_esl] = 0;
  result.string[result.length=nam.nam$b_rsl] = 0;

  /* Get the device name and assign an IO channel.  */
  strncpy (device.string, nam.nam$l_dev, nam.nam$b_dev);
  devicedsc.dsc$w_length  = nam.nam$b_dev;
  chan = 0;
  status = SYS$ASSIGN (&devicedsc, &chan, 0, 0, 0);
  if ((status & 1) != 1)
    return 1;

  /* Initialize the FIB and fill in the directory id field.  */
  memset (&fib, 0, sizeof (fib));
  fib.fib$w_did[0]  = nam.nam$w_did[0];
  fib.fib$w_did[1]  = nam.nam$w_did[1];
  fib.fib$w_did[2]  = nam.nam$w_did[2];
  fib.fib$l_acctl = 0;
  fib.fib$l_wcc = 0;
  strcpy (file.string, (strrchr (result.string, ']') + 1));
  filedsc.dsc$w_length = strlen (file.string);
  result.string[result.length = 0] = 0;

  /* Open and close the file to fill in the attributes.  */
  status
    = SYS$QIOW (0, chan, IO$_ACCESS|IO$M_ACCESS, &iosb, 0, 0,
		&fibdsc, &filedsc, &result.length, &resultdsc, &atrlst, 0);
  if ((status & 1) != 1)
    return 1;
  if ((iosb.status & 1) != 1)
    return 1;

  result.string[result.length] = 0;
  status = SYS$QIOW (0, chan, IO$_DEACCESS, &iosb, 0, 0, &fibdsc, 0, 0, 0,
		     &atrlst, 0);
  if ((status & 1) != 1)
    return 1;
  if ((iosb.status & 1) != 1)
    return 1;

  /* Deassign the channel and exit.  */
  status = SYS$DASSGN (chan);
  if ((status & 1) != 1)
    return 1;

  if (cdt) *cdt = create;
  if (siz) *siz = (512 * 65536 * recattr.fat$w_efblkh) +
                  (512 * (recattr.fat$w_efblkl - 1)) +
                  recattr.fat$w_ffbyte;
  if (rfo) *rfo = recattr.fat$v_rtype;
  if (ver) *ver = strtol (strrchr (ascnamebuff, ';') + 1, 0, 10);
#else /* not VMS */

  struct stat buff;
  struct tm *ts;
  long long gmtoff, secs, nsecs;

  if ((stat (filename, &buff)) != 0)
     return 1;

  if (cdt)
    {
      ts = localtime (& buff.st_mtime);

#ifdef HAVE_TM_GMTOFF
	gmtoff = ts->tm_gmtoff;
#else
	{
	  extern long timezone;

	  if (ts->tm_isdst == 1)
	    gmtoff = - (timezone - 3600);
	  else
	    gmtoff = - timezone;
	}
#endif

#ifdef HAVE_ST_MTIM_TV_SEC
      secs = buff.st_mtim.tv_sec;
#else
      secs = buff.st_mtime;
#endif

#ifdef HAVE_ST_MTIM_TV_NSEC
      nsecs = buff.st_mtim.tv_nsec;
#else
      nsecs = 0;
#endif

      /* VMS timestamps are stored in local time to 100 nsec accuracy, but by
	 experiment I found timestamps truncated to (at least) microseconds
	 on an NFS mounted filesystem, hence the adjustment below. DBR. */
      *cdt = ((secs + gmtoff) * VMS_GRANULARITY_FACTOR)
	+ (nsecs / 1000 * 10) + VMS_EPOCH_OFFSET;
    }

  if (siz)
    *siz = buff.st_size;

  if (rfo)
    *rfo = 2; /* Stream LF format.  */

  /* Returning a file version of 0 is never correct for debug info, version 1
     will be correct if file editing is done only on the Unix side.  If editing
     is done on the VMS side, then its TBD.  */
  if (ver)
    *ver = 1;
#endif /* VMS */

  return 0;
}
Commit	Line	Data
01e1a5bc NC	1	/* vmsutil.c -- Utilities for VMS.
	2	Copyright 2009 Free Software Foundation, Inc.
	3
	4	Written by Douglas B Rupp <rupp@gnat.com>
	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 3 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
	18	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
	19
efde2f2c	20	#include "sysdep.h"
01e1a5bc NC	21	#include "vmsutil.h"
01e1a5bc NC	22
efde2f2c NC	23	/* The purspose of the two alternate versions below is to have one that
	24	works for native VMS and one that works on an NFS mounted filesystem
	25	(Unix Server/VMS client). The main issue being to generate the special
	26	VMS file timestamps for the debug info. */
	27
01e1a5bc NC	28	#ifdef VMS
	29	#define __NEW_STARLET 1
	30	#include <vms/starlet.h>
	31	#include <vms/rms.h>
	32	#include <vms/atrdef.h>
	33	#include <vms/fibdef.h>
	34	#include <vms/stsdef.h>
	35	#include <vms/iodef.h>
	36	#include <vms/fatdef.h>
	37	#include <errno.h>
	38	#include <vms/descrip.h>
	39	#include <string.h>
	40	#include <unixlib.h>
	41
	42	#define MAXPATH 256
	43
	44	/* Descrip.h doesn't have everything... */
	45	typedef struct fibdef * __fibdef_ptr32 __attribute__ (( mode (SI) ));
	46
	47	struct dsc$descriptor_fib
	48	{
	49	unsigned int fib$l_len;
	50	__fibdef_ptr32 fib$l_addr;
	51	};
	52
	53	/* I/O Status Block. */
	54	struct IOSB
	55	{
	56	unsigned short status, count;
	57	unsigned int devdep;
	58	};
	59
	60	static char *tryfile;
	61
	62	/* Variable length string. */
	63	struct vstring
	64	{
	65	short length;
	66	char string[NAM$C_MAXRSS+1];
	67	};
	68
	69	static char filename_buff [MAXPATH];
	70	static char vms_filespec [MAXPATH];
	71
	72	/* Callback function for filespec style conversion. */
	73
	74	static int
	75	translate_unix (char *name, int type ATTRIBUTE_UNUSED)
	76	{
	77	strncpy (filename_buff, name, MAXPATH);
	78	filename_buff [MAXPATH - 1] = (char) 0;
	79	return 0;
	80	}
	81
	82	/* Wrapper for DECC function that converts a Unix filespec
	83	to VMS style filespec. */
	84
	85	static char *
	86	to_vms_file_spec (char *filespec)
	87	{
	88	strncpy (vms_filespec, "", MAXPATH);
	89	decc$to_vms (filespec, translate_unix, 1, 1);
	90	strncpy (vms_filespec, filename_buff, MAXPATH);
	91
92	vms_filespec [MAXPATH - 1] = (char) 0;
93
94	return vms_filespec;
95	}
96
efde2f2c NC	97	#else /* not VMS */
	98
	99	#define _BSD_SOURCE 1
01e1a5bc NC	100	#include <sys/stat.h>
01e1a5bc NC	101	#include <time.h>
efde2f2c NC	102
	103	#define VMS_EPOCH_OFFSET 35067168000000000LL
	104	#define VMS_GRANULARITY_FACTOR 10000000
	105
	106	#endif /* VMS */
01e1a5bc NC	107
	108	/* Return VMS file date, size, format, version given a name. */
	109
	110	int
	111	vms_file_stats_name (const char *filename,
	112	long long *cdt,
	113	long *siz,
	114	char *rfo,
	115	int *ver)
	116	{
	117	#ifdef VMS
	118	struct FAB fab;
	119	struct NAM nam;
	120
	121	unsigned long long create;
	122	FAT recattr;
	123	char ascnamebuff [256];
	124
	125	ATRDEF atrlst[]
	126	= {
	127	{ ATR$S_CREDATE, ATR$C_CREDATE, &create },
	128	{ ATR$S_RECATTR, ATR$C_RECATTR, &recattr },
	129	{ ATR$S_ASCNAME, ATR$C_ASCNAME, &ascnamebuff },
	130	{ 0, 0, 0}
	131	};
	132
	133	FIBDEF fib;
	134	struct dsc$descriptor_fib fibdsc = {sizeof (fib), (void *) &fib};
	135
	136	struct IOSB iosb;
	137
	138	long status;
	139	unsigned short chan;
	140
	141	struct vstring file;
	142	struct dsc$descriptor_s filedsc
	143	= {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) file.string};
	144	struct vstring device;
	145	struct dsc$descriptor_s devicedsc
	146	= {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) device.string};
	147	struct vstring result;
	148	struct dsc$descriptor_s resultdsc
	149	= {NAM$C_MAXRSS, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, (void *) result.string};
	150
	151	if (strcmp (filename, "<internal>") == 0
	152	\|\| strcmp (filename, "<built-in>") == 0)
	153	{
	154	if (cdt)
	155	*cdt = 0;
	156
	157	if (siz)
	158	*siz = 0;
	159
	160	if (rfo)
	161	*rfo = 0;
	162
	163	if (ver)
	164	*ver = 0;
	165
	166	return 0;
	167	}
	168
	169	tryfile = to_vms_file_spec ((char *) filename);
	170
171	/* Allocate and initialize a FAB and NAM structures. */
172	fab = cc$rms_fab;
173	nam = cc$rms_nam;
174
175	nam.nam$l_esa = file.string;
176	nam.nam$b_ess = NAM$C_MAXRSS;
177	nam.nam$l_rsa = result.string;
178	nam.nam$b_rss = NAM$C_MAXRSS;
179	fab.fab$l_fna = tryfile;
180	fab.fab$b_fns = strlen (tryfile);
181	fab.fab$l_nam = &nam;
182
183	/* Validate filespec syntax and device existence. */
184	status = SYS$PARSE (&fab, 0, 0);
185	if ((status & 1) != 1)
186	return 1;
187
188	file.string[nam.nam$b_esl] = 0;
189
190	/* Find matching filespec. */
191	status = SYS$SEARCH (&fab, 0, 0);
192	if ((status & 1) != 1)
193	return 1;
194
195	file.string[nam.nam$b_esl] = 0;
196	result.string[result.length=nam.nam$b_rsl] = 0;
197
198	/* Get the device name and assign an IO channel. */
199	strncpy (device.string, nam.nam$l_dev, nam.nam$b_dev);
200	devicedsc.dsc$w_length = nam.nam$b_dev;
201	chan = 0;
202	status = SYS$ASSIGN (&devicedsc, &chan, 0, 0, 0);
203	if ((status & 1) != 1)
204	return 1;
205
206	/* Initialize the FIB and fill in the directory id field. */
207	memset (&fib, 0, sizeof (fib));
208	fib.fib$w_did[0] = nam.nam$w_did[0];
209	fib.fib$w_did[1] = nam.nam$w_did[1];
210	fib.fib$w_did[2] = nam.nam$w_did[2];
211	fib.fib$l_acctl = 0;
212	fib.fib$l_wcc = 0;
213	strcpy (file.string, (strrchr (result.string, ']') + 1));
214	filedsc.dsc$w_length = strlen (file.string);
215	result.string[result.length = 0] = 0;
216
217	/* Open and close the file to fill in the attributes. */
218	status
219	= SYS$QIOW (0, chan, IO$_ACCESS\|IO$M_ACCESS, &iosb, 0, 0,
220	&fibdsc, &filedsc, &result.length, &resultdsc, &atrlst, 0);
221	if ((status & 1) != 1)
222	return 1;
223	if ((iosb.status & 1) != 1)
224	return 1;
225
226	result.string[result.length] = 0;
227	status = SYS$QIOW (0, chan, IO$_DEACCESS, &iosb, 0, 0, &fibdsc, 0, 0, 0,
228	&atrlst, 0);
229	if ((status & 1) != 1)
230	return 1;
231	if ((iosb.status & 1) != 1)
232	return 1;
233
234	/* Deassign the channel and exit. */
235	status = SYS$DASSGN (chan);
236	if ((status & 1) != 1)
237	return 1;
238
239	if (cdt) *cdt = create;
240	if (siz) siz = (512 65536 * recattr.fat$w_efblkh) +
241	(512 * (recattr.fat$w_efblkl - 1)) +
242	recattr.fat$w_ffbyte;
243	if (rfo) *rfo = recattr.fat$v_rtype;
efde2f2c NC	244	if (ver) *ver = strtol (strrchr (ascnamebuff, ';') + 1, 0, 10);
efde2f2c NC	245	#else /* not VMS */
01e1a5bc	246
01e1a5bc	247	struct stat buff;
efde2f2c NC	248	struct tm *ts;
efde2f2c NC	249	long long gmtoff, secs, nsecs;
01e1a5bc NC	250
	251	if ((stat (filename, &buff)) != 0)
	252	return 1;
	253
	254	if (cdt)
	255	{
efde2f2c NC	256	ts = localtime (& buff.st_mtime);
	257
	258	#ifdef HAVE_TM_GMTOFF
	259	gmtoff = ts->tm_gmtoff;
	260	#else
	261	{
	262	extern long timezone;
	263
	264	if (ts->tm_isdst == 1)
	265	gmtoff = - (timezone - 3600);
	266	else
	267	gmtoff = - timezone;
	268	}
	269	#endif
	270
	271	#ifdef HAVE_ST_MTIM_TV_SEC
	272	secs = buff.st_mtim.tv_sec;
	273	#else
	274	secs = buff.st_mtime;
	275	#endif
	276
	277	#ifdef HAVE_ST_MTIM_TV_NSEC
	278	nsecs = buff.st_mtim.tv_nsec;
	279	#else
	280	nsecs = 0;
	281	#endif
	282
	283	/* VMS timestamps are stored in local time to 100 nsec accuracy, but by
	284	experiment I found timestamps truncated to (at least) microseconds
	285	on an NFS mounted filesystem, hence the adjustment below. DBR. */
	286	cdt = ((secs + gmtoff) VMS_GRANULARITY_FACTOR)
	287	+ (nsecs / 1000 * 10) + VMS_EPOCH_OFFSET;
01e1a5bc NC	288	}
	289
	290	if (siz)
	291	*siz = buff.st_size;
	292
	293	if (rfo)
	294	rfo = 2; / Stream LF format. */
	295
efde2f2c NC	296	/* Returning a file version of 0 is never correct for debug info, version 1
	297	will be correct if file editing is done only on the Unix side. If editing
	298	is done on the VMS side, then its TBD. */
01e1a5bc	299	if (ver)
efde2f2c NC	300	*ver = 1;
efde2f2c NC	301	#endif /* VMS */
01e1a5bc NC	302
01e1a5bc NC	303	return 0;
01e1a5bc NC	304	}
01e1a5bc NC	305