holtz%cascade.carleton.cdn%ubc.CSNET@CSNET-RELAY.ARPA (Neal Holtz) (12/28/85)
A warning, though I suspect its been discovered many times.
The header file <sys/stat.h> that we got with Aegis SR9 CC is
wrong. stat(3) (BSD4.2 version) returns a few more words
of data than the header file leaves room for. Nasty. The
correct version seems to be (as in the CLIB manual, page 3-72 BSD4.2):
/* stat.h, /usr/include, 06/19/85
stat structure and related flags
Changes:
06/19/85 jrw original coding. */
/* stat buffer -- returned from stat(2): */
struct stat {
dev_t st_dev; /* device id */
ino_t st_ino; /* inode number */
ushort st_mode; /* mode (see below) */
short st_nlink; /* # links */
ushort st_uid; /* uid of owner */
ushort st_gid; /* gid of owner */
dev_t st_rdev; /* dev id for b/c spec files */
off_t st_size; /* file size, in bytes */
time_t st_atime; /* data access time */
time_t st_mtime; /* data mod time */
time_t st_ctime; /* attribute mod time */
};
/* st_mode word definition: */
#define S_IFMT 0170000 /* format mask: */
#define S_IFDIR 0040000 /* directory */
#define S_IFCHR 0020000 /* character special */
#define S_IFBLK 0060000 /* block special */
#define S_IFREG 0100000 /* regular */
#define S_IFIFO 0010000 /* pipe (fifo) */
#define S_ISUID 04000 /* set user id on execution */
#define S_ISGID 02000 /* set group id on execution */
#define S_ISVTX 01000 /* save pure text (sticky bit; unimplemented) */
#define S_IREAD 00400 /* read (owner) */
#define S_IWRITE 00200 /* write (owner) */
#define S_IEXEC 00100 /* execute (file) | search (dir) (owner) */apollo@ucbvax.UUCP (12/30/85)
A warning, though I suspect its been discovered many times.
The header file <sys/stat.h> that we got with Aegis SR9 CC is
wrong. stat(3) (BSD4.2 version) returns a few more words
of data than the header file leaves room for. Nasty.
This does seem to be a point of confusion. The problem here is that
the sysV and bsd4.2 versions of stat() return two different structs.
In general, you have to use the right set of include files when you
compile your program. This will happen automatically unless your
/usr/include has been corrupted. In your case, I suspect that you
installed domain/ix first, then later installed the C product, which
wiped out your include files. The correct order is C first, then
domain/ix. This ought to be spelled out in the release notes.
-------apollo@ucbvax.UUCP (01/04/86)
WOW. Jim Ward lives on !!!!
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