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91 lines
2.2 KiB
91 lines
2.2 KiB
/*
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* Copyright (C) 2014 Linux Test Project, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would 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.
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*
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include "test.h"
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#include "safe_macros.h"
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#define OUTPUT_FNAME "output"
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char *TCID = "trerrno";
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int TST_TOTAL = 1;
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static void setup(void)
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{
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tst_tmpdir();
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}
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static void cleanup(void)
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{
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tst_rmdir();
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}
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int main(void)
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{
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int fd, stdout_fd;
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char msg[4096], *pos;
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FILE *f;
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setup();
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/* redirect stdout to file */
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stdout_fd = dup(fileno(stdout));
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fd = SAFE_OPEN(NULL, OUTPUT_FNAME, O_RDWR | O_CREAT, 0666);
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TEST(dup2(fd, fileno(stdout)));
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if (TEST_RETURN == -1)
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tst_brkm(TBROK | TTERRNO, cleanup, "dup2");
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errno = EPERM;
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TEST_ERRNO = EPERM;
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TEST_RETURN = EINVAL;
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tst_resm(TINFO | TRERRNO, "test");
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tst_old_flush();
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/* restore stdout */
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TEST(dup2(stdout_fd, fileno(stdout)));
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if (TEST_RETURN == -1)
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tst_brkm(TBROK | TTERRNO, cleanup, "dup2");
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/* read file and verify that output is as expected */
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SAFE_LSEEK(cleanup, fd, 0, SEEK_SET);
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f = fdopen(fd, "r");
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if (!f)
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tst_brkm(TBROK | TERRNO, cleanup, "fdopen");
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if (!fgets(msg, sizeof(msg), f))
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tst_brkm(TBROK, cleanup, "fgets");
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fclose(f);
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pos = strchr(msg, '\n');
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if (pos != NULL)
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*pos = '\0';
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tst_resm(TINFO, "%s", msg);
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if (strstr(msg, "EPERM"))
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tst_resm(TFAIL, "EPERM shouldn't be in TRERRNO output");
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if (strstr(msg, "EINVAL"))
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tst_resm(TPASS, "EINVAL should be in TRERRNO output");
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else
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tst_resm(TFAIL, "EINVAL not found in TRERRNO output");
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cleanup();
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tst_exit();
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}
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