Date: Fri, 25 Jun 1999 01:30:10 -0400 (EDT) From: Mike Nowlin <mike@argos.org> To: freebsd-stable@freebsd.org Cc: adoyle@viewsnet.com Subject: 3.2-STABLE: readdir() in /proc problem Message-ID: <Pine.LNX.4.05.9906250116260.2002-100000@jason.argos.org>
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Not sure, but it looks like there might be a problem with the /proc
filesystem's file type reporting.... When using readdir() to pull the
directory entries, and then looking at x->d_type, it seems to be reporting
. and .. as file type 4 (directory), but the rest of the "directories" in
there as regular files -- /proc/1 is reported as type 8, not type 4.
Below is the code I used to test this on a couple of machines.... Other
than in the the /proc filesystem, it behaves the way you'd expect..
One of our programs written on a 2.8 box quit working when we upgraded to
3.1 last week.... Just tried the same thing on a 3.2-STABLE box, and it
has the same problem.
Bug? Feature? Something I missed? If it's a bug, I'd be willing to take
a crack at finding it.....:)
--Mike
-------------------------------------------------------------------------
Ye Olde Test Code
-----------------
#include <sys/types.h>
#include <dirent.h>
main() {
DIR *d;
struct dirent *e;
e=malloc(sizeof(struct dirent));
d=opendir("/proc");
while ((e = readdir(d)) != NULL) {
printf("%d %s\n", e->d_type, e->d_name);
}
closedir(d);
}
... and sample output
4 .
4 ..
10 curproc
8 41588
8 41587
8 41450
8 41448
8 41447
8 41432
8 41431
8 41372
...
...
8 1
8 0
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