vmsfunctions.c

   1 /* VMS functions
   2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   3 2007 Free Software Foundation, Inc.
   4 This file is part of GNU Make.
   5
   6 GNU Make is free software; you can redistribute it and/or modify it under the
   7 terms of the GNU General Public License as published by the Free Software
   8 Foundation; either version 3 of the License, or (at your option) any later
   9 version.
  10
  11 GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  13 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along with
  16 this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include "make.h"
  19 #include "debug.h"
  20 #include "job.h"
  21
  22 #ifdef __DECC
  23 #include <starlet.h>
  24 #endif
  25 #include <descrip.h>
  26 #include <rms.h>
  27 #include <iodef.h>
  28 #include <atrdef.h>
  29 #include <fibdef.h>
  30 #include "vmsdir.h"
  31
  32 #ifdef HAVE_VMSDIR_H
  33
  34 DIR *
  35 opendir (char *dspec)
  36 {
  37   struct DIR *dir  = (struct DIR *)xmalloc (sizeof (struct DIR));
  38   struct NAM *dnam = (struct NAM *)xmalloc (sizeof (struct NAM));
  39   struct FAB *dfab = &dir->fab;
  40   char *searchspec = xmalloc (MAXNAMLEN + 1);
  41
  42   memset (dir, 0, sizeof *dir);
  43
  44   *dfab = cc$rms_fab;
  45   *dnam = cc$rms_nam;
  46   sprintf (searchspec, "%s*.*;", dspec);
  47
  48   dfab->fab$l_fna = searchspec;
  49   dfab->fab$b_fns = strlen (searchspec);
  50   dfab->fab$l_nam = dnam;
  51
  52   *dnam = cc$rms_nam;
  53   dnam->nam$l_esa = searchspec;
  54   dnam->nam$b_ess = MAXNAMLEN;
  55
  56   if (! (sys$parse (dfab) & 1))
  57     {
  58       free (dir);
  59       free (dnam);
  60       free (searchspec);
  61       return (NULL);
  62     }
  63
  64   return dir;
  65 }
  66
  67 #define uppercasify(str) \
  68   do \
  69     { \
  70       char *tmp; \
  71       for (tmp = (str); *tmp != '\0'; tmp++) \
  72         if (islower ((unsigned char)*tmp)) \
  73           *tmp = toupper ((unsigned char)*tmp); \
  74     } \
  75   while (0)
  76
  77 struct direct *
  78 readdir (DIR *dir)
  79 {
  80   struct FAB *dfab = &dir->fab;
  81   struct NAM *dnam = (struct NAM *)(dfab->fab$l_nam);
  82   struct direct *dentry = &dir->dir;
  83   int i;
  84
  85   memset (dentry, 0, sizeof *dentry);
  86
  87   dnam->nam$l_rsa = dir->d_result;
  88   dnam->nam$b_rss = MAXNAMLEN;
  89
  90   DB (DB_VERBOSE, ("."));
  91
  92   if (!((i = sys$search (dfab)) & 1))
  93     {
  94       DB (DB_VERBOSE, (_("sys$search() failed with %d\n"), i));
  95       return (NULL);
  96     }
  97
  98   dentry->d_off = 0;
  99   if (dnam->nam$w_fid == 0)
 100     dentry->d_fileno = 1;
 101   else
 102     dentry->d_fileno = dnam->nam$w_fid[0] + (dnam->nam$w_fid[1] << 16);
 103
 104   dentry->d_reclen = sizeof (struct direct);
 105   dentry->d_namlen = dnam->nam$b_name + dnam->nam$b_type;
 106   strncpy (dentry->d_name, dnam->nam$l_name, dentry->d_namlen);
 107   dentry->d_name[dentry->d_namlen] = '\0';
 108
 109 #ifdef HAVE_CASE_INSENSITIVE_FS
 110   uppercasify (dentry->d_name);
 111 #endif
 112
 113   return (dentry);
 114 }
 115
 116 int
 117 closedir (DIR *dir)
 118 {
 119   if (dir != NULL)
 120     {
 121       struct FAB *dfab = &dir->fab;
 122       struct NAM *dnam = (struct NAM *)(dfab->fab$l_nam);
 123       if (dnam != NULL)
 124         free (dnam->nam$l_esa);
 125       free (dnam);
 126       free (dir);
 127     }
 128
 129   return 0;
 130 }
 131 #endif /* compiled for OpenVMS prior to V7.x */
 132
 133 char *
 134 getwd (char *cwd)
 135 {
 136   static char buf[512];
 137
 138   if (cwd)
 139     return (getcwd (cwd, 512));
 140   else
 141     return (getcwd (buf, 512));
 142 }
 143
 144 int
 145 vms_stat (char *name, struct stat *buf)
 146 {
 147   int status;
 148   int i;
 149
 150   static struct FAB Fab;
 151   static struct NAM Nam;
 152   static struct fibdef Fib;     /* short fib */
 153   static struct dsc$descriptor FibDesc =
 154   { sizeof (Fib), DSC$K_DTYPE_Z, DSC$K_CLASS_S, (char *) &Fib };
 155   static struct dsc$descriptor_s DevDesc =
 156   { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, &Nam.nam$t_dvi[1] };
 157   static char EName[NAM$C_MAXRSS];
 158   static char RName[NAM$C_MAXRSS];
 159   static struct dsc$descriptor_s FileName =
 160   { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0 };
 161   static struct dsc$descriptor_s string =
 162   { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0 };
 163   static unsigned long Rdate[2];
 164   static unsigned long Cdate[2];
 165   static struct atrdef Atr[] =
 166   {
 167 #if defined(VAX)
 168     /* Revision date */
 169     { sizeof (Rdate), ATR$C_REVDATE, (unsigned int) &Rdate[0] },
 170     /* Creation date */
 171     { sizeof (Cdate), ATR$C_CREDATE, (unsigned int) &Cdate[0] },
 172 #else
 173     /* Revision date */
 174     { sizeof (Rdate), ATR$C_REVDATE, &Rdate[0] },
 175     /* Creation date */
 176     { sizeof (Cdate), ATR$C_CREDATE, &Cdate[0]},
 177 #endif
 178     { 0, 0, 0 }
 179   };
 180   static short int DevChan;
 181   static short int iosb[4];
 182
 183   name = vmsify (name, 0);
 184
 185   /* initialize RMS structures, we need a NAM to retrieve the FID */
 186   Fab = cc$rms_fab;
 187   Fab.fab$l_fna = name;         /* name of file */
 188   Fab.fab$b_fns = strlen (name);
 189   Fab.fab$l_nam = &Nam;         /* FAB has an associated NAM */
 190
 191   Nam = cc$rms_nam;
 192   Nam.nam$l_esa = EName;        /* expanded filename */
 193   Nam.nam$b_ess = sizeof (EName);
 194   Nam.nam$l_rsa = RName;        /* resultant filename */
 195   Nam.nam$b_rss = sizeof (RName);
 196
 197   /* do $PARSE and $SEARCH here */
 198   status = sys$parse (&Fab);
 199   if (!(status & 1))
 200     return -1;
 201
 202   DevDesc.dsc$w_length = Nam.nam$t_dvi[0];
 203   status = sys$assign (&DevDesc, &DevChan, 0, 0);
 204   if (!(status & 1))
 205     return -1;
 206
 207   FileName.dsc$a_pointer = Nam.nam$l_name;
 208   FileName.dsc$w_length = Nam.nam$b_name + Nam.nam$b_type + Nam.nam$b_ver;
 209
 210   /* Initialize the FIB */
 211   for (i = 0; i < 3; i++)
 212     {
 213 #ifndef __VAXC
 214       Fib.fib$w_fid[i] = Nam.nam$w_fid[i];
 215       Fib.fib$w_did[i] = Nam.nam$w_did[i];
 216 #else
 217       Fib.fib$r_fid_overlay.fib$w_fid[i] = Nam.nam$w_fid[i];
 218       Fib.fib$r_did_overlay.fib$w_did[i] = Nam.nam$w_did[i];
 219 #endif
 220     }
 221
 222   status = sys$qiow (0, DevChan, IO$_ACCESS, &iosb, 0, 0,
 223                      &FibDesc, &FileName, 0, 0, &Atr, 0);
 224   sys$dassgn (DevChan);
 225   if (!(status & 1))
 226     return -1;
 227   status = iosb[0];
 228   if (!(status & 1))
 229     return -1;
 230
 231   status = stat (name, buf);
 232   if (status)
 233     return -1;
 234
 235   buf->st_mtime = ((Rdate[0] >> 24) & 0xff) + ((Rdate[1] << 8) & 0xffffff00);
 236   buf->st_ctime = ((Cdate[0] >> 24) & 0xff) + ((Cdate[1] << 8) & 0xffffff00);
 237
 238   return 0;
 239 }
 240
 241 char *
 242 cvt_time (unsigned long tval)
 243 {
 244   static long int date[2];
 245   static char str[27];
 246   static struct dsc$descriptor date_str =
 247   { 26, DSC$K_DTYPE_T, DSC$K_CLASS_S, str };
 248
 249   date[0] = (tval & 0xff) << 24;
 250   date[1] = ((tval >> 8) & 0xffffff);
 251
 252   if ((date[0] == 0) && (date[1] == 0))
 253     return ("never");
 254
 255   sys$asctim (0, &date_str, date, 0);
 256   str[26] = '\0';
 257
 258   return (str);
 259 }