93a65e1b5f
An execute-only fd (opened with O_EXEC) allows neither read() nor write() and is therefore incompatible with all stdio modes. Therefore, the [EINVAL] error applies. Also adjust the similar check in freopen() with a NULL path, even though this checks an fd which is already from a FILE.
110 lines
3.5 KiB
C
110 lines
3.5 KiB
C
/*-
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* Copyright (c) 2014 Jilles Tjoelker
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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static int testnum = 1;
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static void
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runtest(const char *fname1, const char *mode1, const char *fname2,
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const char *mode2, bool success)
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{
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FILE *fp1, *fp2;
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const char *fname2_print;
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fname2_print = fname2 != NULL ? fname2 : "<NULL>";
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fp1 = fopen(fname1, mode1);
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if (fp1 == NULL) {
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printf("not ok %d - fopen(\"%s\", \"%s\") failed\n",
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testnum++, fname1, mode1);
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return;
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}
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fp2 = freopen(fname2, mode2, fp1);
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if (fp2 == NULL) {
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fclose(fp1);
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if (success)
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printf("not ok %d - "
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"freopen(\"%s\", \"%s\", fopen(\"%s\", \"%s\")) "
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"failed\n",
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testnum++, fname2_print, mode2, fname1, mode1);
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else
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printf("ok %d - "
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"freopen(\"%s\", \"%s\", fopen(\"%s\", \"%s\")) "
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"failed\n",
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testnum++, fname2_print, mode2, fname1, mode1);
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return;
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}
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if (success)
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printf("ok %d - "
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"freopen(\"%s\", \"%s\", fopen(\"%s\", \"%s\")) "
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"succeeded\n",
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testnum++, fname2_print, mode2, fname1, mode1);
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else
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printf("not ok %d - "
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"freopen(\"%s\", \"%s\", fopen(\"%s\", \"%s\")) "
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"succeeded\n",
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testnum++, fname2_print, mode2, fname1, mode1);
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fclose(fp2);
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}
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/*
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* Test program for freopen().
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*/
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int
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main(int argc, char *argv[])
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{
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printf("1..19\n");
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runtest("/dev/null", "r", NULL, "r", true);
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runtest("/dev/null", "w", NULL, "r", false);
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runtest("/dev/null", "r+", NULL, "r", true);
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runtest("/dev/null", "r", NULL, "w", false);
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runtest("/dev/null", "w", NULL, "w", true);
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runtest("/dev/null", "r+", NULL, "w", true);
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runtest("/dev/null", "r", NULL, "a", false);
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runtest("/dev/null", "w", NULL, "a", true);
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runtest("/dev/null", "r+", NULL, "a", true);
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runtest("/dev/null", "r", NULL, "r+", false);
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runtest("/dev/null", "w", NULL, "r+", false);
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runtest("/dev/null", "r+", NULL, "r+", true);
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runtest("/dev/null", "r", NULL, "w+", false);
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runtest("/dev/null", "w", NULL, "w+", false);
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runtest("/dev/null", "r+", NULL, "w+", true);
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runtest("/bin/sh", "r", NULL, "r", true);
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runtest("/bin/sh", "r", "/bin/sh", "r", true);
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runtest("/bin/sh", "r", "/dev/null", "r", true);
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runtest("/bin/sh", "r", "/dev/null", "w", true);
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return 0;
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}
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/* vim:ts=8:cin:sw=8
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* */
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