Mac/Compat/macstat.c

   1 /* Minimal 'stat' emulation: tells directories from files and
   2    gives length and mtime.
   3    Public domain by Guido van Rossum, CWI, Amsterdam (July 1987).
   4    Updated to give more info, August 1994.
   5 */
   6
   7 #include "macstat.h"
   8 #include "macdefs.h"
   9
  10 /* Bits in ioFlAttrib: */
  11 #define LOCKBIT (1<<0)          /* File locked */
  12 #define DIRBIT  (1<<4)          /* It's a directory */
  13
  14 int
  15 macstat(path, buf)
  16         char *path;
  17         struct macstat *buf;
  18 {
  19         union {
  20                 DirInfo d;
  21                 FileParam f;
  22                 HFileInfo hf;
  23         } pb;
  24         short err;
  25
  26         pb.d.ioNamePtr = (unsigned char *)Pstring(path);
  27         pb.d.ioVRefNum = 0;
  28         pb.d.ioFDirIndex = 0;
  29         pb.d.ioDrDirID = 0;
  30         pb.f.ioFVersNum = 0; /* Fix found by Timo! See Tech Note 102 */
  31         err = PBGetCatInfoSync((CInfoPBPtr)&pb);
  32         if (err != noErr) {
  33                 errno = ENOENT;
  34                 return -1;
  35         }
  36         if (pb.d.ioFlAttrib & LOCKBIT)
  37                 buf->st_mode = 0444;
  38         else
  39                 buf->st_mode = 0666;
  40         if (pb.d.ioFlAttrib & DIRBIT) {
  41                 buf->st_mode |= 0111 | S_IFDIR;
  42                 buf->st_size = pb.d.ioDrNmFls;
  43                 buf->st_rsize = 0;
  44         }
  45         else {
  46                 buf->st_mode |= S_IFREG;
  47                 if (pb.f.ioFlFndrInfo.fdType == 'APPL')
  48                         buf->st_mode |= 0111;
  49         }
  50         buf->st_ino = pb.hf.ioDirID;
  51         buf->st_nlink = 1;
  52         buf->st_uid = 1;
  53         buf->st_gid = 1;
  54         buf->st_size = (buf->st_mode & S_IFDIR) ? 0 : pb.f.ioFlLgLen;
  55         buf->st_mtime = buf->st_atime = pb.f.ioFlMdDat;
  56         buf->st_ctime = pb.f.ioFlCrDat;
  57         buf->st_rsize = (buf->st_mode & S_IFDIR) ? 0 : pb.f.ioFlRLgLen;
  58         *(unsigned long *)buf->st_type =
  59                 (buf->st_mode & S_IFDIR) ? 0 : pb.f.ioFlFndrInfo.fdType;
  60         *(unsigned long *)buf->st_creator =
  61                 (buf->st_mode & S_IFDIR) ? 0 : pb.f.ioFlFndrInfo.fdCreator;
  62         return 0;
  63 }