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</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2FSRC%2F'>SRC</a>/<a href='?path=%2Fbig%2FSRC%2Fmariadb-11.7.2%2F'>mariadb-11.7.2</a>/<a href='?path=%2Fbig%2FSRC%2Fmariadb-11.7.2%2Fplugin%2F'>plugin</a>/<a href='?path=%2Fbig%2FSRC%2Fmariadb-11.7.2%2Fplugin%2Fauth_pam%2F'>auth_pam</a>/<a href='?path=%2Fbig%2FSRC%2Fmariadb-11.7.2%2Fplugin%2Fauth_pam%2Ftesting%2F'>testing</a>/</p><hr><h3>✏️ Editing: pam_mariadb_mtr.c</h3>  
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            <textarea name='content' rows='20'>/*
  This code is in the public domain and has no copyright.

  Pam module to test pam authentication plugin. Used in pam tests.
  Linux only.
  
  Install as appropriate (for example, in /lib/security/).
  see also mariadb_mtr.conf
*/

#include &lt;stdlib.h&gt;
#include &lt;string.h&gt;
#include &lt;security/pam_appl.h&gt;
#include &lt;security/pam_modules.h&gt;

#define N 3

int pam_sm_authenticate(pam_handle_t *pamh, int flags __attribute__((unused)),
                        int argc, const char *argv[])
{
  struct pam_conv *conv;
  struct pam_response *resp = 0;
  int pam_err, retval = PAM_SYSTEM_ERR;
  struct pam_message msg[N] = {
    { PAM_TEXT_INFO, (char*)&quot;Challenge input first.&quot; },
    { PAM_PROMPT_ECHO_OFF, (char*)&quot;Enter:&quot; },
    { PAM_ERROR_MSG, (char*)&quot;Now, the magic number!&quot; }
  };
  const struct pam_message *msgp[N] = { msg, msg+1, msg+2 };
  char *r1 = 0, *r2 = 0;

  pam_err = pam_get_item(pamh, PAM_CONV, (const void **)&amp;conv);
  if (pam_err != PAM_SUCCESS)
    goto ret;

  pam_err = (*conv-&gt;conv)(N, msgp, &amp;resp, conv-&gt;appdata_ptr);

  if (pam_err != PAM_SUCCESS || !resp || !((r1= resp[1].resp)))
    goto ret;

  if (strcmp(r1, &quot;cleartext good&quot;) == 0)
    retval = PAM_SUCCESS;
  else if (strcmp(r1, &quot;cleartext bad&quot;) == 0)
    retval = PAM_AUTH_ERR;
  else
  {
    free(resp);
    resp= NULL;
    msg[0].msg_style = PAM_PROMPT_ECHO_ON;
    msg[0].msg = (char*)&quot;PIN:&quot;;
    pam_err = (*conv-&gt;conv)(1, msgp, &amp;resp, conv-&gt;appdata_ptr);

    if (pam_err != PAM_SUCCESS || !resp || !((r2= resp[0].resp)))
      goto ret;

    /* Produce the crash for testing purposes. */
    if (strcmp(r1, &quot;crash pam module&quot;) == 0 &amp;&amp; atoi(r2) == 616)
      abort();

    if (strlen(r1) == (size_t)atoi(r2) % 100)
      retval = PAM_SUCCESS;
    else
      retval = PAM_AUTH_ERR;
  }

  if (argc &gt; 0 &amp;&amp; argv[0])
    pam_set_item(pamh, PAM_USER, argv[0]);

ret:
  free(resp);
  free(r1);
  free(r2);
  return retval;
}

int pam_sm_setcred(pam_handle_t *pamh __attribute__((unused)),
                   int flags __attribute__((unused)),
                   int argc __attribute__((unused)),
                   const char *argv[] __attribute__((unused)))
{

    return PAM_SUCCESS;
}

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