74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/*
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* Check success injection.
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*
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* Copyright (c) 2017 Elvira Khabirova <lineprinter0@gmail.com>
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <asm/unistd.h>
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#ifdef __NR_chdir
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# include <assert.h>
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# include <stdio.h>
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# include <stdlib.h>
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# include <unistd.h>
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# include <sys/stat.h>
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int
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main(int argc, char *argv[])
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{
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assert(argc == 2);
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static const char dir[] = "..";
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struct stat before, after;
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if (stat(".", &before))
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perror_msg_and_fail("stat");
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long rval = syscall(__NR_chdir, dir);
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if (stat(".", &after))
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perror_msg_and_fail("stat");
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if (before.st_dev != after.st_dev || before.st_ino != after.st_ino)
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error_msg_and_fail("syscall succeeded");
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if (atol(argv[1]) != rval)
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error_msg_and_fail("expected retval %s, got retval %ld",
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argv[1], rval);
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printf("chdir(\"%s\") = %ld (INJECTED)\n", dir, rval);
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_chdir")
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#endif
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