vmsfunctions.c

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