usr/src/cmd/ssh/libopenbsd-compat/common/setproctitle.c

   1 /*
   2  * Modified for OpenSSH by Kevin Steves
   3  * October 2000
   4  */
   5
   6 /*
   7  * Copyright (c) 1994, 1995 Christopher G. Demetriou
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by Christopher G. Demetriou
  21  *      for the NetBSD Project.
  22  * 4. The name of the author may not be used to endorse or promote products
  23  *    derived from this software without specific prior written permission
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  26  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  28  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  29  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  34  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 #if defined(LIBC_SCCS) && !defined(lint)
  38 static char rcsid[] = "$OpenBSD: setproctitle.c,v 1.8 2001/11/06 19:21:40 art Exp $";
  39 #endif /* LIBC_SCCS and not lint */
  40
  41 #include "includes.h"
  42
  43 #ifndef HAVE_SETPROCTITLE
  44
  45 #define SPT_NONE        0
  46 #define SPT_PSTAT       1
  47
  48 #ifndef SPT_TYPE
  49 #define SPT_TYPE        SPT_NONE
  50 #endif
  51
  52 #if SPT_TYPE == SPT_PSTAT
  53 #include <sys/param.h>
  54 #include <sys/pstat.h>
  55 #endif /* SPT_TYPE == SPT_PSTAT */
  56
  57 #define MAX_PROCTITLE   2048
  58
  59 extern char *__progname;
  60
  61 /*
  62  * Set Process Title (SPT) defines.  Modeled after sendmail's
  63  * SPT type definition strategy.
  64  *
  65  * SPT_TYPE:
  66  *
  67  * SPT_NONE:    Don't set the process title.  Default.
  68  * SPT_PSTAT:   Use pstat(PSTAT_SETCMD).  HP-UX specific.
  69  */
  70
  71 void
  72 setproctitle(const char *fmt, ...)
  73 {
  74 #if SPT_TYPE != SPT_NONE
  75         va_list ap;
  76
  77         char buf[MAX_PROCTITLE];
  78         size_t used;
  79
  80 #if SPT_TYPE == SPT_PSTAT
  81         union pstun pst;
  82 #endif /* SPT_TYPE == SPT_PSTAT */
  83
  84         va_start(ap, fmt);
  85         if (fmt != NULL) {
  86                 used = snprintf(buf, MAX_PROCTITLE, "%s: ", __progname);
  87                 if (used >= MAX_PROCTITLE)
  88                         used = MAX_PROCTITLE - 1;
  89                 (void)vsnprintf(buf + used, MAX_PROCTITLE - used, fmt, ap);
  90         } else
  91                 (void)snprintf(buf, MAX_PROCTITLE, "%s", __progname);
  92         va_end(ap);
  93         used = strlen(buf);
  94
  95 #if SPT_TYPE == SPT_PSTAT
  96         pst.pst_command = buf;
  97         pstat(PSTAT_SETCMD, pst, used, 0, 0);
  98 #endif /* SPT_TYPE == SPT_PSTAT */
  99
 100 #endif /* SPT_TYPE != SPT_NONE */
 101 }
 102 #endif /* HAVE_SETPROCTITLE */
 103
 104 #pragma ident   "%Z%%M% %I%     %E% SMI"