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Quick attempt to decode DTYPE_PIPE files and print something meaningful

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for them.  Otherwise, it does strange things when it hits one..
This commit is contained in:
Peter Wemm 1996-08-24 08:01:29 +00:00
parent 52e6597a17
commit 1c17fc996d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=17808
1 changed files with 53 additions and 7 deletions
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60
usr.bin/fstat/fstat.c
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@ -55,6 +55,7 @@ static char sccsid[] = "@(#)fstat.c 8.1 (Berkeley) 6/6/93";
#include <sys/sysctl.h>
#include <sys/filedesc.h>
#include <sys/queue.h>
#include <sys/pipe.h>
#define KERNEL
#include <sys/file.h>
#include <ufs/ufs/quota.h>
@ -141,16 +142,23 @@ int maxfiles;
kvm_t *kd;
int ufs_filestat(), nfs_filestat();
void dofiles(), getinetproto(), socktrans();
void usage(), vtrans();
void dofiles __P((struct kinfo_proc *kp));
void vtrans __P((struct vnode *vp, int i, int flag));
int ufs_filestat __P((struct vnode *vp, struct filestat *fsp));
int nfs_filestat __P((struct vnode *vp, struct filestat *fsp));
char *getmnton __P((struct mount *m));
void pipetrans __P((struct pipe *pi, int i, int flag));
void socktrans __P((struct socket *sock, int i));
void getinetproto __P((int number));
int getfname __P((char *filename));
void usage __P((void));
int
main(argc, argv)
int argc;
char **argv;
{
extern char *optarg;
extern int optind;
register struct passwd *passwd;
struct kinfo_proc *p, *plast;
int arg, ch, what;
@ -298,8 +306,6 @@ dofiles(kp)
struct proc *p = &kp->kp_proc;
struct eproc *ep = &kp->kp_eproc;
extern char *user_from_uid();
Uname = user_from_uid(ep->e_ucred.cr_uid, 0);
Pid = p->p_pid;
Comm = p->p_comm;
@ -354,6 +360,13 @@ dofiles(kp)
if (checkfile == 0)
socktrans((struct socket *)file.f_data, i);
}
#ifdef DTYPE_PIPE
else if (file.f_type == DTYPE_PIPE) {
if (checkfile == 0)
pipetrans((struct pipe *)file.f_data, i,
file.f_flag);
}
#endif
else {
dprintf(stderr,
"unknown file type %d for file %d of pid %d\n",
@ -558,6 +571,38 @@ getmnton(m)
return (mt->mntonname);
}
void
pipetrans(pi, i, flag)
struct pipe *pi;
int i;
int flag;
{
struct pipe pip;
char rw[3];
PREFIX(i);
/* fill in socket */
if (!KVM_READ(pi, &pip, sizeof(struct pipe))) {
dprintf(stderr, "can't read pipe at %x\n", pi);
goto bad;
}
printf("* pipe %8x <-> %8x", (int)pi, (int)pip.pipe_peer);
printf(" %6d", (int)pip.pipe_buffer.cnt);
rw[0] = '\0';
if (flag & FREAD)
strcat(rw, "r");
if (flag & FWRITE)
strcat(rw, "w");
printf(" %2s", rw);
putchar('\n');
return;
bad:
printf("* error\n");
}
void
socktrans(sock, i)
struct socket *sock;
@ -715,6 +760,7 @@ getinetproto(number)
printf(" %s", cp);
}
int
getfname(filename)
char *filename;
{