Date: Sun, 28 Jan 1996 23:26:37 +0100 (MET) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-hackers@freebsd.org (FreeBSD hackers) Subject: Re: sysexits.h. which EX_ to use Message-ID: <199601282226.XAA03630@uriah.heep.sax.de> In-Reply-To: <199601281744.EAA18411@godzilla.zeta.org.au> from "Bruce Evans" at Jan 29, 96 04:44:52 am
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As Bruce Evans wrote:
>
> > EX_OSERR for fstat (stat'ing should always be possible if the
> > file exists)
>
> stat() usually fails because the file doesn't exist.
The file for fstat() should always exist as long fd is a valid file
descriptor:
j@uriah 643% cat > foo.c
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
int main(void)
{
struct stat s;
int fd;
fd = open("foobar", O_CREAT, 0666);
unlink("foobar");
if(fstat(fd, &s) == -1) {
perror("fstat()");
return 1;
} else {
printf("fstat() result: mode 0%o, inode %d\n",
s.st_mode, s.st_ino);
}
return 0;
}
j@uriah 644% cc foo.c
j@uriah 645% ./a.out
fstat() result: mode 0100644, inode 324
--
cheers, J"org
joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)
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