servers/iso9660fs/stadir.c

   1 #include "inc.h"
   2 #include <sys/stat.h>
   3 #include <sys/statfs.h>
   4 #include <minix/com.h>
   5 #include <string.h>
   6 #include <time.h>
   7
   8 #include <minix/vfsif.h>
   9
  10
  11 FORWARD _PROTOTYPE(int stat_dir_record, (struct dir_record *dir, int pipe_pos,
  12                                          int who_e, cp_grant_id_t gid)  );
  13
  14
  15 /*===========================================================================*
  16  *                              stat_dir_record                              *
  17  *===========================================================================*/
  18 PRIVATE int stat_dir_record(dir, pipe_pos, who_e, gid)
  19 register struct dir_record *dir;        /* pointer to dir record to stat */
  20 int pipe_pos;                   /* position in a pipe, supplied by fstat() */
  21 int who_e;                      /* Caller endpoint */
  22 cp_grant_id_t gid;              /* grant for the stat buf */
  23 {
  24 /* This function returns all the info about a particular inode. It's missing
  25  * the recording date because of a bug in the standard functions stdtime.
  26  * Once the bug is fixed the function can be called inside this function to
  27  * return the date. */
  28
  29 /* Common code for stat and fstat system calls. */
  30   struct stat statbuf;
  31   mode_t mo;
  32   int r, s;
  33   struct tm ltime;
  34   time_t time1;
  35
  36   statbuf.st_dev = fs_dev;      /* the device of the file */
  37   statbuf.st_ino = ID_DIR_RECORD(dir); /* the id of the dir record */
  38   statbuf.st_mode = dir->d_mode; /* flags of the file */
  39   statbuf.st_nlink = dir->d_count; /* times this file is used */
  40   statbuf.st_uid = 0;           /* user root */
  41   statbuf.st_gid = 0;           /* group operator */
  42   statbuf.st_rdev = NO_DEV;
  43   statbuf.st_size = dir->d_file_size;   /* size of the file */
  44
  45   ltime.tm_year = dir->rec_date[0];
  46   ltime.tm_mon = dir->rec_date[1] - 1;
  47   ltime.tm_mday = dir->rec_date[2];
  48   ltime.tm_hour = dir->rec_date[3];
  49   ltime.tm_min = dir->rec_date[4];
  50   ltime.tm_sec = dir->rec_date[5];
  51   ltime.tm_isdst = 0;
  52
  53   if (dir->rec_date[6] != 0)
  54         ltime.tm_hour += dir->rec_date[6] / 4;
  55
  56   time1 = mktime(&ltime);
  57
  58   statbuf.st_atime = time1;
  59   statbuf.st_mtime = time1;
  60   statbuf.st_ctime = time1;
  61
  62   /* Copy the struct to user space. */
  63   r = sys_safecopyto(who_e, gid, 0, (vir_bytes) &statbuf,
  64                      (phys_bytes) sizeof(statbuf), D);
  65
  66   return(r);
  67 }
  68
  69
  70 /*===========================================================================*
  71  *                             fs_stat                                       *
  72  *===========================================================================*/
  73 PUBLIC int fs_stat()
  74 {
  75   register int r;              /* return value */
  76   struct dir_record *dir;
  77   r = EINVAL;
  78
  79   if ((dir = get_dir_record(fs_m_in.REQ_INODE_NR)) != NULL) {
  80         r = stat_dir_record(dir, 0, fs_m_in.m_source, fs_m_in.REQ_GRANT);
  81         release_dir_record(dir);
  82   }
  83
  84   return(r);
  85 }
  86
  87
  88 /*===========================================================================*
  89  *                              fs_fstatfs                                   *
  90  *===========================================================================*/
  91 PUBLIC int fs_fstatfs()
  92 {
  93   struct statfs st;
  94   int r;
  95
  96   st.f_bsize = v_pri.logical_block_size_l;
  97
  98   /* Copy the struct to user space. */
  99   r = sys_safecopyto(fs_m_in.m_source, fs_m_in.REQ_GRANT, 0,
 100                      (vir_bytes) &st, (phys_bytes) sizeof(st), D);
 101
 102   return(r);
 103 }
 104