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151 lines
3.4 KiB
C
151 lines
3.4 KiB
C
/* Check execvpe script argument handling.
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Copyright (C) 2016-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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static char *fname1;
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static char *fname2;
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static char *logname;
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static void do_prepare (void);
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#define PREPARE(argc, argv) do_prepare ()
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static int do_test (void);
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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static void
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do_prepare (void)
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{
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int logfd = create_temp_file ("logfile", &logname);
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close (logfd);
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int fd1 = create_temp_file ("testscript", &fname1);
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dprintf (fd1, "echo foo $1 $2 $3 > %s\n", logname);
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fchmod (fd1, 0700);
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close (fd1);
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int fd2 = create_temp_file ("testscript", &fname2);
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dprintf (fd2, "echo foo > %s\n", logname);
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fchmod (fd2, 0700);
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close (fd2);
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}
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static int
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run_script (const char *fname, char *args[])
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{
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/* We want to test the `execvpe' function. To do this we restart the
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program with an additional parameter. */
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int status;
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pid_t pid = fork ();
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if (pid == 0)
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{
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execvpe (fname, args, NULL);
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puts ("Cannot exec");
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exit (EXIT_FAILURE);
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}
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else if (pid == (pid_t) -1)
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{
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puts ("Cannot fork");
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return 1;
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}
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/* Wait for the child. */
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if (waitpid (pid, &status, 0) != pid)
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{
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puts ("Wrong child");
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return 1;
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}
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if (WTERMSIG (status) != 0)
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{
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puts ("Child terminated incorrectly");
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return 1;
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}
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return 0;
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}
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static int
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check_output (const char *expected)
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{
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/* Check log output. */
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FILE *arq = fopen (logname, "r");
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if (arq == NULL)
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{
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puts ("Error opening output file");
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return 1;
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}
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char line[128];
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if (fgets (line, sizeof (line), arq) == NULL)
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{
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puts ("Error reading output file");
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return 1;
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}
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fclose (arq);
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if (strcmp (line, expected) != 0)
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{
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puts ("Output file different than expected");
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return 1;
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}
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return 0;
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}
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static int
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do_test (void)
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{
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if (setenv ("PATH", test_dir, 1) != 0)
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{
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puts ("setenv failed");
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return 1;
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}
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/* First check resulting script run with some arguments results in correct
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output file. */
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char *args1[] = { fname1, (char*) "1", (char *) "2", (char *) "3", NULL };
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if (run_script (fname1,args1))
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return 1;
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if (check_output ("foo 1 2 3\n"))
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return 1;
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/* Same as before but with an expected empty argument list. */
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char *args2[] = { fname2, NULL };
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if (run_script (fname2, args2))
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return 1;
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if (check_output ("foo\n"))
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return 1;
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/* Same as before but with an empty argument list. */
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char *args3[] = { NULL };
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if (run_script (fname2, args3))
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return 1;
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if (check_output ("foo\n"))
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return 1;
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return 0;
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}
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