68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mes/lib.h>
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#include <stdarg.h>
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#include <unistd.h>
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int
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vexec (char const *file_name, va_list ap)
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{
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char *arg = va_arg (ap, char *);
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char *argv[1000]; // POSIX minimum 4096
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int i = 0;
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argv[i++] = (char *) file_name;
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while (arg)
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{
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argv[i++] = arg;
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arg = va_arg (ap, char *);
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if (__mes_debug () > 2)
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{
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eputs ("arg[");
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eputs (itoa (i));
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eputs ("]: ");
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eputs (argv[i - 1]);
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eputs ("\n");
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}
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}
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argv[i] = 0;
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int r = execv (file_name, argv);
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va_end (ap);
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return r;
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}
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int
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execl (char const *file_name, char const *arg, ...)
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{
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va_list ap;
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int r;
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va_start (ap, arg);
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if (__mes_debug () > 2)
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{
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eputs ("execl ");
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eputs (file_name);
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eputs ("\n");
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}
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r = vexec (file_name, ap);
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va_end (ap);
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return r;
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}
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