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A partial implementation of the procfs cmdline pseudo-file. This
is enough to satisfy things like StarOffice. This is a hack, but doing it properly would be a LOT of work, and would require extensive grovelling around in the user address space to find the argv[]. Obtained from: Mostly from Andrzej Bialecki <abial@nask.pl>.
This commit is contained in:
Peter Wemm
parent
92e86f9920
commit
75ba77578f
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=42301
@ -37,7 +37,7 @@
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* @(#)procfs.h 8.9 (Berkeley) 5/14/95
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*
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* From:
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* $Id: procfs.h,v 1.19 1998/05/19 00:00:13 tegge Exp $
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* $Id: procfs.h,v 1.20 1998/07/07 04:08:44 bde Exp $
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*/
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/*
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@ -56,7 +56,8 @@ typedef enum {
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Pnote, /* process notifier */
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Pnotepg, /* process group notifier */
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Pmap, /* memory map */
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Ptype /* executable type */
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Ptype, /* executable type */
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Pcmdline /* command line */
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} pfstype;
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/*
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@ -154,6 +155,7 @@ int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct
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int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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int procfs_domap __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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int procfs_dotype __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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int procfs_docmdline __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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/* Return 1 if process has special kernel digging privileges */
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int procfs_kmemaccess __P((struct proc *));
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@ -37,7 +37,7 @@
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* @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
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*
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* From:
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* $Id: procfs_status.c,v 1.10 1997/08/02 14:32:17 bde Exp $
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* $Id: procfs_status.c,v 1.11 1998/07/11 07:45:45 bde Exp $
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*/
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#include <sys/param.h>
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@ -147,3 +147,40 @@ procfs_dostatus(curp, p, pfs, uio)
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return (error);
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}
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int
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procfs_docmdline(curp, p, pfs, uio)
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struct proc *curp;
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struct proc *p;
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struct pfsnode *pfs;
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struct uio *uio;
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{
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char *ps;
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int xlen;
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int error;
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char psbuf[256];
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if (uio->uio_rw != UIO_READ)
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return (EOPNOTSUPP);
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/*
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* For now, this is a hack. To implement this fully would require
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* groping around in the process address space to follow argv etc.
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*/
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ps = psbuf;
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bcopy(p->p_comm, ps, MAXCOMLEN);
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ps[MAXCOMLEN] = '\0';
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ps += strlen(ps);
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ps += sprintf(ps, "\n");
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xlen = ps - psbuf;
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xlen -= uio->uio_offset;
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ps = psbuf + uio->uio_offset;
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xlen = min(xlen, uio->uio_resid);
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if (xlen <= 0)
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error = 0;
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else
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error = uiomove(ps, xlen, uio);
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return (error);
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}
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@ -36,7 +36,7 @@
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*
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* @(#)procfs_subr.c 8.6 (Berkeley) 5/14/95
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*
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* $Id: procfs_subr.c,v 1.20 1997/12/09 05:03:41 sef Exp $
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* $Id: procfs_subr.c,v 1.21 1997/12/12 03:33:43 sef Exp $
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*/
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#include <sys/param.h>
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@ -181,6 +181,7 @@ procfs_allocvp(mp, vpp, pid, pfs_type)
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case Ptype:
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case Pmap:
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case Pstatus:
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case Pcmdline:
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pfs->pfs_mode = (VREAD) |
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(VREAD >> 3) |
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(VREAD >> 6);
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@ -282,6 +283,10 @@ procfs_rw(ap)
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rtval = procfs_dotype(curp, p, pfs, uio);
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break;
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case Pcmdline:
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rtval = procfs_docmdline(curp, p, pfs, uio);
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break;
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default:
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rtval = EOPNOTSUPP;
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break;
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@ -36,7 +36,7 @@
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*
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* @(#)procfs_vnops.c 8.18 (Berkeley) 5/21/95
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*
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* $Id: procfs_vnops.c,v 1.61 1998/07/11 07:45:46 bde Exp $
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* $Id: procfs_vnops.c,v 1.62 1998/12/04 22:54:51 archie Exp $
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*/
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/*
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@ -101,6 +101,7 @@ static struct proc_target {
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{ DT_REG, N("notepg"), Pnotepg, NULL },
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{ DT_REG, N("map"), Pmap, procfs_validmap },
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{ DT_REG, N("etype"), Ptype, procfs_validtype },
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{ DT_REG, N("cmdline"), Pcmdline, NULL },
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#undef N
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};
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static const int nproc_targets = sizeof(proc_targets) / sizeof(proc_targets[0]);
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@ -573,6 +574,7 @@ procfs_getattr(ap)
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case Pstatus:
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case Pnote:
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case Pnotepg:
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case Pcmdline:
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vap->va_nlink = 1;
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vap->va_uid = procp->p_ucred->cr_uid;
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vap->va_gid = procp->p_ucred->cr_gid;
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@ -37,7 +37,7 @@
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* @(#)procfs.h 8.9 (Berkeley) 5/14/95
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*
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* From:
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* $Id: procfs.h,v 1.19 1998/05/19 00:00:13 tegge Exp $
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* $Id: procfs.h,v 1.20 1998/07/07 04:08:44 bde Exp $
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*/
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/*
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@ -56,7 +56,8 @@ typedef enum {
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Pnote, /* process notifier */
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Pnotepg, /* process group notifier */
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Pmap, /* memory map */
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Ptype /* executable type */
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Ptype, /* executable type */
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Pcmdline /* command line */
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} pfstype;
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/*
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@ -154,6 +155,7 @@ int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct
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int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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int procfs_domap __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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int procfs_dotype __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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int procfs_docmdline __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
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/* Return 1 if process has special kernel digging privileges */
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int procfs_kmemaccess __P((struct proc *));
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@ -37,7 +37,7 @@
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* @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
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*
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* From:
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* $Id: procfs_status.c,v 1.10 1997/08/02 14:32:17 bde Exp $
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* $Id: procfs_status.c,v 1.11 1998/07/11 07:45:45 bde Exp $
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*/
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#include <sys/param.h>
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@ -147,3 +147,40 @@ procfs_dostatus(curp, p, pfs, uio)
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return (error);
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}
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int
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procfs_docmdline(curp, p, pfs, uio)
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struct proc *curp;
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struct proc *p;
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struct pfsnode *pfs;
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struct uio *uio;
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{
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char *ps;
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int xlen;
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int error;
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char psbuf[256];
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if (uio->uio_rw != UIO_READ)
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return (EOPNOTSUPP);
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/*
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* For now, this is a hack. To implement this fully would require
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* groping around in the process address space to follow argv etc.
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*/
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ps = psbuf;
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bcopy(p->p_comm, ps, MAXCOMLEN);
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ps[MAXCOMLEN] = '\0';
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ps += strlen(ps);
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ps += sprintf(ps, "\n");
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xlen = ps - psbuf;
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xlen -= uio->uio_offset;
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ps = psbuf + uio->uio_offset;
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xlen = min(xlen, uio->uio_resid);
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if (xlen <= 0)
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error = 0;
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else
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error = uiomove(ps, xlen, uio);
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return (error);
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}
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@ -36,7 +36,7 @@
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*
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* @(#)procfs_subr.c 8.6 (Berkeley) 5/14/95
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*
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* $Id: procfs_subr.c,v 1.20 1997/12/09 05:03:41 sef Exp $
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* $Id: procfs_subr.c,v 1.21 1997/12/12 03:33:43 sef Exp $
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*/
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#include <sys/param.h>
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@ -181,6 +181,7 @@ procfs_allocvp(mp, vpp, pid, pfs_type)
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case Ptype:
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case Pmap:
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case Pstatus:
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case Pcmdline:
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pfs->pfs_mode = (VREAD) |
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(VREAD >> 3) |
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(VREAD >> 6);
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@ -282,6 +283,10 @@ procfs_rw(ap)
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rtval = procfs_dotype(curp, p, pfs, uio);
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break;
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case Pcmdline:
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rtval = procfs_docmdline(curp, p, pfs, uio);
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break;
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default:
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rtval = EOPNOTSUPP;
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break;
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@ -36,7 +36,7 @@
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*
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* @(#)procfs_vnops.c 8.18 (Berkeley) 5/21/95
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*
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* $Id: procfs_vnops.c,v 1.61 1998/07/11 07:45:46 bde Exp $
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* $Id: procfs_vnops.c,v 1.62 1998/12/04 22:54:51 archie Exp $
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*/
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/*
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@ -101,6 +101,7 @@ static struct proc_target {
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{ DT_REG, N("notepg"), Pnotepg, NULL },
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{ DT_REG, N("map"), Pmap, procfs_validmap },
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{ DT_REG, N("etype"), Ptype, procfs_validtype },
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{ DT_REG, N("cmdline"), Pcmdline, NULL },
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#undef N
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};
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static const int nproc_targets = sizeof(proc_targets) / sizeof(proc_targets[0]);
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@ -573,6 +574,7 @@ procfs_getattr(ap)
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case Pstatus:
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case Pnote:
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case Pnotepg:
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case Pcmdline:
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vap->va_nlink = 1;
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vap->va_uid = procp->p_ucred->cr_uid;
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vap->va_gid = procp->p_ucred->cr_gid;
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