libproff/setproctitle.c
/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following functions.
- initsetproctitle
- initsetproctitle
- setproctitle
/*
* Copyright (c) 1983, 1995, 1996 Eric P. Allman
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* static char sccsid[] = "@(#)conf.c 8.333 (Berkeley) 1/21/97"; */
/*
* fairly hacked about code originally from sendmail 8.8.4
*/
#include "config.h"
#include "libproff.h"
#include "setproctitle.h"
#ifdef HAVE_SETPROCTITLE
EXPORT void initsetproctitle(int argc, char **argv, char **envp)
/* [<][>][^][v][top][bottom][index][help] */
{
return;
}
#else /* !HAVE_SETPROCTITLE */
/*
** HP-UX -- tested for 8.07, 9.00, and 9.01.
**
** If V4FS is defined, compile for HP-UX 10.0.
*/
#ifdef __hpux
# define SPT_TYPE SPT_PSTAT
#endif
/*
** Linux
*/
#ifdef __linux__
# define SPT_PADCHAR '\0'
#endif
/*
** IBM AIX 3.x -- actually tested for 3.2.3
*/
#ifdef _AIX3
# define SPT_PADCHAR '\0' /* pad process title with nulls */
#endif
/*
** IBM AIX 2.2.1 -- actually tested for osupdate level 2706+1773
**
** From Mark Whetzel <markw@wg.waii.com>.
*/
#ifdef AIX /* AIX/RT compiler pre-defines this */
# define SPT_PADCHAR '\0' /* pad process title with nulls */
#endif
#ifdef DGUX
# define SPT_TYPE SPT_NONE /* don't use setproctitle */
#endif
/*
** 4.4 BSD
**
** See also BSD defines.
*/
#if defined(BSD4_4) && !defined(__bsdi__)
# define SPT_TYPE SPT_PSSTRINGS /* use PS_STRINGS pointer */
#endif
/*
** BSD/OS (was BSD/386) (all versions)
** From Tony Sanders, BSDI
*/
#ifdef __bsdi__
# define SPT_PADCHAR '\0' /* pad process title with nulls */
#endif
/*
** FreeBSD / NetBSD / OpenBSD (all architectures, all versions)
**
** 4.3BSD clone, closer to 4.4BSD for FreeBSD 1.x and NetBSD 0.9x
** 4.4BSD-Lite based for FreeBSD 2.x and NetBSD 1.x
**
** See also BSD defines.
*/
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
# undef SPT_TYPE
# define SPT_TYPE SPT_REUSEARGV
# define SPT_PADCHAR '\0' /* pad process title with nulls */
#endif
/*
** SCO Unix
**
** This includes three parts:
**
** The first is for SCO OpenServer 5.
** (Contributed by Keith Reynolds <keithr@sco.COM>).
**
** SCO OpenServer 5 has a compiler version number macro,
** which we can use to figure out what version we're on.
** This may have to change in future releases.
**
** The second is for SCO UNIX 3.2v4.2/Open Desktop 3.0.
** (Contributed by Philippe Brand <phb@colombo.telesys-innov.fr>).
**
** The third is for SCO UNIX 3.2v4.0/Open Desktop 2.0 and earlier.
*/
/* SCO UNIX 3.2v4.0 Open Desktop 2.0 and earlier */
#ifdef _SCO_unix_
# define SPT_TYPE SPT_SCO /* write kernel u. area */
#endif
/*
** Sequent DYNIX/ptx v2.0 (and higher)
**
** For DYNIX/ptx v1.x, undefine HASSETREUID.
**
** From Tim Wright <timw@sequent.com>.
** Update from Jack Woolley <jwoolley@sctcorp.com>, 26 Dec 1995,
** for DYNIX/ptx 4.0.2.
*/
#ifdef _SEQUENT_
# define SPT_TYPE SPT_NONE /* don't use setproctitle */
#endif
/*
** Apollo DomainOS
**
** From Todd Martin <tmartint@tus.ssi1.com> & Don Lewis <gdonl@gv.ssi1.com>
**
** 15 Jan 1994; updated 2 Aug 1995
**
*/
#ifdef apollo
# define SPT_TYPE SPT_NONE /* don't use setproctitle */
#endif
/*
** NCR MP-RAS 2.x (SysVr4) with Wollongong TCP/IP
**
** From Kevin Darcy <kevin@tech.mis.cfc.com>.
*/
#ifdef NCR_MP_RAS2
# define SPT_TYPE SPT_NONE
#endif
/*
** NCR MP-RAS 3.x (SysVr4) with STREAMware TCP/IP
**
** From Tom Moore <Tom.Moore@DaytonOH.NCR.COM>
*/
#ifdef NCR_MP_RAS3
# define SPT_TYPE SPT_NONE
#endif
#ifdef sony_news
# ifndef __svr4
# else
# define SPT_TYPE SPT_SYSMIPS /* use sysmips() (OS 6.0.2 or later) */
# endif
#endif
/* make a copy of a string */
#define SPACELEFT(buf, ptr) (sizeof buf - ((ptr) - buf))
#define MAXLINE 2048 /* max line length */
/*
** SETPROCTITLE -- set process title for ps
**
** Parameters:
** fmt -- a printf style format string.
** a, b, c -- possible parameters to fmt.
**
** Returns:
** none.
**
** Side Effects:
** Clobbers argv of our main procedure so ps(1) will
** display the title.
*/
#define SPT_NONE 0 /* don't use it at all */
#define SPT_REUSEARGV 1 /* cover argv with title information */
#define SPT_BUILTIN 2 /* use libc builtin */
#define SPT_PSTAT 3 /* use pstat(PSTAT_SETCMD, ...) */
#define SPT_PSSTRINGS 4 /* use PS_STRINGS->... */
#define SPT_SYSMIPS 5 /* use sysmips() supported by NEWS-OS 6 */
#define SPT_SCO 6 /* write kernel u. area */
#ifndef SPT_TYPE
# define SPT_TYPE SPT_REUSEARGV
#endif
#if SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN
# if SPT_TYPE == SPT_PSTAT
# include <sys/pstat.h>
# endif
# if SPT_TYPE == SPT_PSSTRINGS
# include <machine/vmparam.h>
# include <sys/exec.h>
# ifndef PS_STRINGS /* hmmmm.... apparently not available after all */
# undef SPT_TYPE
# define SPT_TYPE SPT_REUSEARGV
# else
# ifndef NKPDE /* FreeBSD 2.0 */
# define NKPDE 63
typedef unsigned int *pt_entry_t;
# endif
# endif
# endif
# if SPT_TYPE == SPT_PSSTRINGS
# define SETPROC_STATIC static
# else
# define SETPROC_STATIC
# endif
# if SPT_TYPE == SPT_SYSMIPS
# include <sys/sysmips.h>
# include <sys/sysnews.h>
# endif
# if SPT_TYPE == SPT_SCO
# include <sys/immu.h>
# include <sys/dir.h>
# include <sys/user.h>
# include <sys/fs/s5param.h>
# if PSARGSZ > MAXLINE
# define SPT_BUFSIZE PSARGSZ
# endif
# endif
# ifndef SPT_PADCHAR
# define SPT_PADCHAR ' '
# endif
# ifndef SPT_BUFSIZE
# define SPT_BUFSIZE MAXLINE
# endif
#endif /* SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN */
/*
** Pointers for setproctitle.
** This allows "ps" listings to give more useful information.
*/
char **Argv = NULL; /* pointer to argument vector */
char *LastArgv = NULL; /* end of argv */
EXPORT void initsetproctitle(int argc, char **argv, char **envp)
/* [<][>][^][v][top][bottom][index][help] */
{
register int i;
extern char **environ;
/*
** Move the environment so setproctitle can use the space at
** the top of memory.
*/
for (i = 0; envp[i] != NULL; i++)
continue;
environ = (char **) Smalloc(sizeof (char *) * (i + 1));
for (i = 0; envp[i] != NULL; i++)
environ[i] = Sstrdup(envp[i]);
environ[i] = NULL;
/*
** Save start and extent of argv for setproctitle.
*/
Argv = argv;
if (i > 0)
LastArgv = envp[i - 1] + strlen(envp[i - 1]);
else
LastArgv = argv[argc - 1] + strlen(argv[argc - 1]);
}
EXPORT void setproctitle(const char *fmt, ...)
/* [<][>][^][v][top][bottom][index][help] */
{
# if SPT_TYPE != SPT_NONE
register char *p;
register int i;
SETPROC_STATIC char buf[SPT_BUFSIZE];
va_list ap;
# if SPT_TYPE == SPT_PSTAT
union pstun pst;
# endif
# if SPT_TYPE == SPT_SCO
off_t seek_off;
static int kmem = -1;
static int kmempid = -1;
struct user u;
# endif
p = buf;
/* print nntpcache: heading for grep */
(void) strcpy(p, "nntpcache: ");
p += strlen(p);
/* print the argument string */
va_start(ap, fmt);
(void) vsnprintf(p, SPACELEFT(buf, p), fmt, ap);
va_end(ap);
i = strlen(buf);
# if SPT_TYPE == SPT_PSTAT
pst.pst_command = buf;
pstat(PSTAT_SETCMD, pst, i, 0, 0);
# endif
# if SPT_TYPE == SPT_PSSTRINGS
PS_STRINGS->ps_nargvstr = 1;
PS_STRINGS->ps_argvstr = buf;
# endif
# if SPT_TYPE == SPT_SYSMIPS
sysmips(SONY_SYSNEWS, NEWS_SETPSARGS, buf);
# endif
# if SPT_TYPE == SPT_SCO
if (kmem < 0 || kmempid != getpid())
{
if (kmem >= 0)
close(kmem);
kmem = open(_PATH_KMEM, O_RDWR, 0);
if (kmem < 0)
return;
(void) fcntl(kmem, F_SETFD, 1);
kmempid = getpid();
}
buf[PSARGSZ - 1] = '\0';
seek_off = UVUBLK + (off_t) u.u_psargs - (off_t) &u;
if (lseek(kmem, (off_t) seek_off, SEEK_SET) == seek_off)
(void) write(kmem, buf, PSARGSZ);
# endif
# if SPT_TYPE == SPT_REUSEARGV
if (i > LastArgv - Argv[0] - 2)
{
i = LastArgv - Argv[0] - 2;
buf[i] = '\0';
}
(void) strcpy(Argv[0], buf);
p = &Argv[0][i];
while (p < LastArgv)
*p++ = SPT_PADCHAR;
Argv[1] = NULL;
# endif
# endif /* SPT_TYPE != SPT_NONE */
}
#endif /* !HAVE_SETPROCTITLE */