53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2022 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 <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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extern int *__ungetc_buf;
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int
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pclose (FILE *stream)
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{
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int filedes = fileno (stream);
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__ungetc_init ();
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pid_t pid = __ungetc_buf[filedes];
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if (!pid)
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{
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errno = EINVAL;
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return -1;
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}
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if (fclose (stream))
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return -1;
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int status;
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pid_t child_pid = waitpid (pid, &status, 0);
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if (child_pid != pid)
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return -1;
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return status;
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}
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