I think we should apply the following changes
so our definitions of on-disk structures do not
depend on sizeof(time_t):

Index: ufs/ffs/fs.h
===================================================================
RCS file: /cvsroot/syssrc/sys/ufs/ffs/fs.h,v
retrieving revision 1.12
diff -u -r1.12 fs.h
--- ufs/ffs/fs.h        1999/11/15 18:49:14     1.12
+++ ufs/ffs/fs.h        2001/02/22 22:10:13
@@ -164,7 +164,7 @@
        ufs_daddr_t fs_dblkno;          /* offset of first data after cg */
        int32_t  fs_cgoffset;           /* cylinder group offset in cylinder */
        int32_t  fs_cgmask;             /* used to calc mod fs_ntrak */
-       time_t   fs_time;               /* last time written */
+       int32_t  fs_time;               /* last time written */
        int32_t  fs_size;               /* number of blocks in fs */
        int32_t  fs_dsize;              /* number of data blocks in fs */
        int32_t  fs_ncg;                /* number of cylinder groups */
@@ -229,7 +229,7 @@
        int32_t  fs_cpc;                /* cyl per cycle in postbl */
        int16_t  fs_opostbl[16][8];     /* old rotation block list head */
        int32_t  fs_sparecon[49];       /* reserved for future constants */
-       time_t   fs_fscktime;           /* last time fsck(8)ed */
+       int32_t  fs_fscktime;           /* last time fsck(8)ed */
        int32_t  fs_contigsumsize;      /* size of cluster summary array */ 
        int32_t  fs_maxsymlinklen;      /* max length of an internal symlink */
        int32_t  fs_inodefmt;           /* format of on-disk inodes */
@@ -327,7 +327,7 @@
 struct cg {
        int32_t  cg_firstfield;         /* historic cyl groups linked list */
        int32_t  cg_magic;              /* magic number */
-       time_t   cg_time;               /* time last written */
+       int32_t  cg_time;               /* time last written */
        int32_t  cg_cgx;                /* we are the cgx'th cylinder group */
        int16_t  cg_ncyl;               /* number of cyl's this cg */
        int16_t  cg_niblk;              /* number of inode blocks this cg */
@@ -392,7 +392,7 @@
 struct ocg {
        int32_t  cg_firstfield;         /* historic linked list of cyl groups */
        int32_t  cg_unused_1;           /*     used for incore cyl groups */
-       time_t   cg_time;               /* time last written */
+       int32_t  cg_time;               /* time last written */
        int32_t  cg_cgx;                /* we are the cgx'th cylinder group */
        int16_t  cg_ncyl;               /* number of cyl's this cg */
        int16_t  cg_niblk;              /* number of inode blocks this cg */
Index: ufs/ufs/quota.h
===================================================================
RCS file: /cvsroot/syssrc/sys/ufs/ufs/quota.h,v
retrieving revision 1.8
diff -u -r1.8 quota.h
--- ufs/ufs/quota.h     2000/03/16 18:26:49     1.8
+++ ufs/ufs/quota.h     2001/02/22 22:10:14
@@ -105,8 +105,8 @@
        u_int32_t dqb_ihardlimit;       /* maximum # allocated inodes + 1 */
        u_int32_t dqb_isoftlimit;       /* preferred inode limit */
        u_int32_t dqb_curinodes;        /* current # allocated inodes */
-       time_t    dqb_btime;            /* time limit for excessive disk use */
-       time_t    dqb_itime;            /* time limit for excessive files */
+       int32_t   dqb_btime;            /* time limit for excessive disk use */ 
+       int32_t   dqb_itime;            /* time limit for excessive files */
 };
 
 #ifdef _KERNEL

Eduardo