vmsfunctions.c

   1 /* vmsfunctions.c */
   2
   3 #include "make.h"
   4 #include "debug.h"
   5
   6 #ifdef __DECC
   7 #include <starlet.h>
   8 #endif
   9 #include <descrip.h>
  10 #include <rms.h>
  11 #include <iodef.h>
  12 #include <atrdef.h>
  13 #include <fibdef.h>
  14 #include "vmsdir.h"
  15
  16 #ifdef HAVE_VMSDIR_H
  17
  18 DIR *
  19 opendir (dspec)
  20      char *dspec;
  21 {
  22   struct DIR *dir  = (struct DIR *)xmalloc (sizeof (struct DIR));
  23   struct NAM *dnam = (struct NAM *)xmalloc (sizeof (struct NAM));
  24   struct FAB *dfab = &dir->fab;
  25   char *searchspec = (char *)xmalloc (MAXNAMLEN + 1);
  26
  27   memset (dir, 0, sizeof *dir);
  28
  29   *dfab = cc$rms_fab;
  30   *dnam = cc$rms_nam;
  31   sprintf (searchspec, "%s*.*;", dspec);
  32
  33   dfab->fab$l_fna = searchspec;
  34   dfab->fab$b_fns = strlen (searchspec);
  35   dfab->fab$l_nam = dnam;
  36
  37   *dnam = cc$rms_nam;
  38   dnam->nam$l_esa = searchspec;
  39   dnam->nam$b_ess = MAXNAMLEN;
  40
  41   if (! (sys$parse (dfab) & 1))
  42     {
  43       free (dir);
  44       free (dnam);
  45       free (searchspec);
  46       return (NULL);
  47     }
  48
  49   return dir;
  50 }
  51
  52 #define uppercasify(str) \
  53   do \
  54     { \
  55       char *tmp; \
  56       for (tmp = (str); *tmp != '\0'; tmp++) \
  57         if (islower ((unsigned char)*tmp)) \
  58           *tmp = toupper ((unsigned char)*tmp); \
  59     } \
  60   while (0)
  61
  62 struct direct *
  63 readdir (dir)
  64      DIR * dir;
  65 {
  66   struct FAB *dfab = &dir->fab;
  67   struct NAM *dnam = (struct NAM *)(dfab->fab$l_nam);
  68   struct direct *dentry = &dir->dir;
  69   int i;
  70
  71   memset (dentry, 0, sizeof *dentry);
  72
  73   dnam->nam$l_rsa = dir->d_result;
  74   dnam->nam$b_rss = MAXNAMLEN;
  75
  76   DB (DB_VERBOSE, ("."));
  77
  78   if (!((i = sys$search (dfab)) & 1))
  79     {
  80       DB (DB_VERBOSE, (_("sys$search failed with %d\n"), i));
  81       return (NULL);
  82     }
  83
  84   dentry->d_off = 0;
  85   if (dnam->nam$w_fid == 0)
  86     dentry->d_fileno = 1;
  87   else
  88     dentry->d_fileno = dnam->nam$w_fid[0] + (dnam->nam$w_fid[1] << 16);
  89
  90   dentry->d_reclen = sizeof (struct direct);
  91   dentry->d_namlen = dnam->nam$b_name + dnam->nam$b_type;
  92   strncpy (dentry->d_name, dnam->nam$l_name, dentry->d_namlen);
  93   dentry->d_name[dentry->d_namlen] = '\0';
  94   uppercasify (dentry->d_name);
  95
  96   return (dentry);
  97 }
  98
  99 int
 100 closedir (dir)
 101      DIR *dir;
 102 {
 103   if (dir != NULL)
 104     {
 105       struct FAB *dfab = &dir->fab;
 106       struct NAM *dnam = (struct NAM *)(dfab->fab$l_nam);
 107       if (dnam != NULL)
 108         free (dnam->nam$l_esa);
 109       free (dnam);
 110       free (dir);
 111     }
 112
 113   return 0;
 114 }
 115 #endif /* compiled for OpenVMS prior to V7.x */
 116
 117 char *
 118 getwd (cwd)
 119      char *cwd;
 120 {
 121   static char buf[512];
 122
 123   if (cwd)
 124     return (getcwd (cwd, 512));
 125   else
 126     return (getcwd (buf, 512));
 127 }
 128
 129 int
 130 vms_stat (name, buf)
 131      char *name;
 132      struct stat *buf;
 133 {
 134   int status;
 135   int i;
 136
 137   static struct FAB Fab;
 138   static struct NAM Nam;
 139   static struct fibdef Fib;     /* short fib */
 140   static struct dsc$descriptor FibDesc =
 141   { sizeof (Fib), DSC$K_DTYPE_Z, DSC$K_CLASS_S, (char *) &Fib };
 142   static struct dsc$descriptor_s DevDesc =
 143   { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, &Nam.nam$t_dvi[1] };
 144   static char EName[NAM$C_MAXRSS];
 145   static char RName[NAM$C_MAXRSS];
 146   static struct dsc$descriptor_s FileName =
 147   { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0 };
 148   static struct dsc$descriptor_s string =
 149   { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0 };
 150   static unsigned long Rdate[2];
 151   static unsigned long Cdate[2];
 152   static struct atrdef Atr[] =
 153   {
 154 #if defined(VAX)
 155     /* Revision date */
 156     { sizeof (Rdate), ATR$C_REVDATE, (unsigned int) &Rdate[0] },
 157     /* Creation date */
 158     { sizeof (Cdate), ATR$C_CREDATE, (unsigned int) &Cdate[0] },
 159 #else
 160     /* Revision date */
 161     { sizeof (Rdate), ATR$C_REVDATE, &Rdate[0] },
 162     /* Creation date */
 163     { sizeof (Cdate), ATR$C_CREDATE, &Cdate[0]},
 164 #endif
 165     { 0, 0, 0 }
 166   };
 167   static short int DevChan;
 168   static short int iosb[4];
 169
 170   name = vmsify (name, 0);
 171
 172   /* initialize RMS structures, we need a NAM to retrieve the FID */
 173   Fab = cc$rms_fab;
 174   Fab.fab$l_fna = name;         /* name of file */
 175   Fab.fab$b_fns = strlen (name);
 176   Fab.fab$l_nam = &Nam;         /* FAB has an associated NAM */
 177
 178   Nam = cc$rms_nam;
 179   Nam.nam$l_esa = EName;        /* expanded filename */
 180   Nam.nam$b_ess = sizeof (EName);
 181   Nam.nam$l_rsa = RName;        /* resultant filename */
 182   Nam.nam$b_rss = sizeof (RName);
 183
 184   /* do $PARSE and $SEARCH here */
 185   status = sys$parse (&Fab);
 186   if (!(status & 1))
 187     return -1;
 188
 189   DevDesc.dsc$w_length = Nam.nam$t_dvi[0];
 190   status = sys$assign (&DevDesc, &DevChan, 0, 0);
 191   if (!(status & 1))
 192     return -1;
 193
 194   FileName.dsc$a_pointer = Nam.nam$l_name;
 195   FileName.dsc$w_length = Nam.nam$b_name + Nam.nam$b_type + Nam.nam$b_ver;
 196
 197   /* Initialize the FIB */
 198   for (i = 0; i < 3; i++)
 199     {
 200 #ifndef __VAXC
 201       Fib.fib$w_fid[i] = Nam.nam$w_fid[i];
 202       Fib.fib$w_did[i] = Nam.nam$w_did[i];
 203 #else
 204       Fib.fib$r_fid_overlay.fib$w_fid[i] = Nam.nam$w_fid[i];
 205       Fib.fib$r_did_overlay.fib$w_did[i] = Nam.nam$w_did[i];
 206 #endif
 207     }
 208
 209   status = sys$qiow (0, DevChan, IO$_ACCESS, &iosb, 0, 0,
 210                      &FibDesc, &FileName, 0, 0, &Atr, 0);
 211   sys$dassgn (DevChan);
 212   if (!(status & 1))
 213     return -1;
 214   status = iosb[0];
 215   if (!(status & 1))
 216     return -1;
 217
 218   status = stat (name, buf);
 219   if (status)
 220     return -1;
 221
 222   buf->st_mtime = ((Rdate[0] >> 24) & 0xff) + ((Rdate[1] << 8) & 0xffffff00);
 223   buf->st_ctime = ((Cdate[0] >> 24) & 0xff) + ((Cdate[1] << 8) & 0xffffff00);
 224
 225   return 0;
 226 }
 227
 228 char *
 229 cvt_time (tval)
 230      unsigned long tval;
 231 {
 232   static long int date[2];
 233   static char str[27];
 234   static struct dsc$descriptor date_str =
 235   { 26, DSC$K_DTYPE_T, DSC$K_CLASS_S, str };
 236
 237   date[0] = (tval & 0xff) << 24;
 238   date[1] = ((tval >> 8) & 0xffffff);
 239
 240   if ((date[0] == 0) && (date[1] == 0))
 241     return ("never");
 242
 243   sys$asctim (0, &date_str, date, 0);
 244   str[26] = '\0';
 245
 246   return (str);
 247 }
 248
 249 int
 250 strcmpi (s1, s2)
 251     const char *s1;
 252     const char *s2;
 253 {
 254   while (*s1 != '\0' && toupper(*s1) == toupper(*s2))
 255     {
 256       s1++;
 257       s2++;
 258     }
 259
 260   return toupper(*(unsigned char *) s1) - toupper(*(unsigned char *) s2);
 261 }