libiberty/pex-os2.c

   1 /* Utilities to execute a program in a subprocess (possibly linked by pipes
   2    with other subprocesses), and wait for it.  OS/2 specialization.
   3    Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003
   4    Free Software Foundation, Inc.
   5
   6 This file is part of the libiberty library.
   7 Libiberty is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU Library General Public
   9 License as published by the Free Software Foundation; either
  10 version 2 of the License, or (at your option) any later version.
  11
  12 Libiberty is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 Library General Public License for more details.
  16
  17 You should have received a copy of the GNU Library General Public
  18 License along with libiberty; see the file COPYING.LIB.  If not,
  19 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 #include "pex-common.h"
  23
  24 #ifdef HAVE_UNISTD_H
  25 #include <unistd.h>
  26 #endif
  27 #ifdef HAVE_STDLIB_H
  28 #include <stdlib.h>
  29 #endif
  30 #ifdef HAVE_SYS_WAIT_H
  31 #include <sys/wait.h>
  32 #endif
  33
  34 /* ??? Does OS2 have process.h?  */
  35 extern int spawnv ();
  36 extern int spawnvp ();
  37
  38 int
  39 pexecute (program, argv, this_pname, temp_base, errmsg_fmt, errmsg_arg, flags)
  40      const char *program;
  41      char * const *argv;
  42      const char *this_pname;
  43      const char *temp_base;
  44      char **errmsg_fmt, **errmsg_arg;
  45      int flags;
  46 {
  47   int pid;
  48
  49   if ((flags & PEXECUTE_ONE) != PEXECUTE_ONE)
  50     abort ();
  51   /* ??? Presumably 1 == _P_NOWAIT.  */
  52   pid = (flags & PEXECUTE_SEARCH ? spawnvp : spawnv) (1, program, argv);
  53   if (pid == -1)
  54     {
  55       *errmsg_fmt = install_error_msg;
  56       *errmsg_arg = program;
  57       return -1;
  58     }
  59   return pid;
  60 }
  61
  62 int
  63 pwait (pid, status, flags)
  64      int pid;
  65      int *status;
  66      int flags;
  67 {
  68   /* ??? Here's an opportunity to canonicalize the values in STATUS.
  69      Needed?  */
  70   int pid = wait (status);
  71   return pid;
  72 }