1  /* Check if DT_AUDIT a module with la_plt{enter,exit} call la_symbind
       2     for lazy resolution.
       3     Copyright (C) 2021-2023 Free Software Foundation, Inc.
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public
       8     License as published by the Free Software Foundation; either
       9     version 2.1 of the License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library; if not, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  #include <getopt.h>
      21  #include <support/capture_subprocess.h>
      22  #include <support/check.h>
      23  #include <support/xstdio.h>
      24  #include <stdlib.h>
      25  #include <string.h>
      26  #include <stdbool.h>
      27  
      28  static int restart;
      29  #define CMDLINE_OPTIONS \
      30    { "restart", no_argument, &restart, 1 },
      31  
      32  int tst_audit18bmod1_func (void);
      33  
      34  static int
      35  handle_restart (void)
      36  {
      37    TEST_COMPARE (tst_audit18bmod1_func (), 10);
      38    return 0;
      39  }
      40  
      41  static inline bool
      42  startswith (const char *str, const char *pre)
      43  {
      44    size_t lenpre = strlen (pre);
      45    size_t lenstr = strlen (str);
      46    return lenstr < lenpre ? false : memcmp (pre, str, lenpre) == 0;
      47  }
      48  
      49  static int
      50  do_test (int argc, char *argv[])
      51  {
      52    /* We must have either:
      53       - One our fource parameters left if called initially:
      54         + path to ld.so         optional
      55         + "--library-path"      optional
      56         + the library path      optional
      57         + the application name  */
      58  
      59    if (restart)
      60      return handle_restart ();
      61  
      62    char *spargv[9];
      63    int i = 0;
      64    for (; i < argc - 1; i++)
      65      spargv[i] = argv[i + 1];
      66    spargv[i++] = (char *) "--direct";
      67    spargv[i++] = (char *) "--restart";
      68    spargv[i] = NULL;
      69  
      70    setenv ("LD_AUDIT", "tst-auditmod18b.so", 0);
      71    struct support_capture_subprocess result
      72      = support_capture_subprogram (spargv[0], spargv);
      73    support_capture_subprocess_check (&result, "tst-audit18b", 0, sc_allow_stderr);
      74  
      75    bool find_symbind = false;
      76  
      77    FILE *out = fmemopen (result.err.buffer, result.err.length, "r");
      78    TEST_VERIFY (out != NULL);
      79    char *buffer = NULL;
      80    size_t buffer_length = 0;
      81    while (xgetline (&buffer, &buffer_length, out))
      82      if (startswith (buffer, "la_symbind: tst_audit18bmod1_func") == 0)
      83        find_symbind = true;
      84  
      85    TEST_COMPARE (find_symbind, true);
      86  
      87    free (buffer);
      88    xfclose (out);
      89  
      90    return 0;
      91  }
      92  
      93  #define TEST_FUNCTION_ARGV do_test
      94  #include <support/test-driver.c>