89945751d9
* include/fcntl.h (O_RDONLY, O_WRONLY, O_RDWR, O_CREAT, O_APPEND, O_TRUNC)[__GNU__]: Specialize for GNU. * lib/gnu/dir-lookup.c: New file. * lib/stdio/fopen.c (fopen): Use O_RDONLY. * lib/tests/posix/50-open-read.c (main): Likewise. * lib/tests/stdio/90-fseek.c (main): Likewise. * include/gnu/syscall.h (SYS__dir_lookup): New value. * lib/gnu/_open3.c: New file. * build-aux/configure-lib.sh (libc_SOURCES): Build them.
62 lines
1.5 KiB
C
62 lines
1.5 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 <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdio.h>
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int
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main ()
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{
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int fd = open ("../COPYING", O_RDONLY);
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if (fd <= 0)
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return 1;
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FILE *f = fdopen (fd, "r");
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int r = fseek (f, 0, SEEK_CUR);
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if (r != 0)
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return 2;
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int pos = ftell (f);
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if (pos != 0)
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return 3;
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r = fseek (f, 0, SEEK_END);
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if (r != 0)
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return 4;
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pos = ftell (f);
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eputs ("size=");
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eputs (itoa (pos));
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eputs ("\n");
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if (pos != 35147)
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return 5;
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r = fseek (f, 0, SEEK_SET);
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char buf[4096];
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fgets (buf, 200, f);
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eputs ("buf:");
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eputs (buf);
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if (strcmp (buf, " GNU GENERAL PUBLIC LICENSE\n"))
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return 6;
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return 0;
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}
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