1 /*- 2 * Copyright 2001 Mark R V Murray 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/lib/libpam/libpam/pam_debug_log.c,v 1.8 2002/04/14 16:44:04 des Exp $ 27 * $DragonFly: src/lib/libpam/pam_debug_log.c,v 1.1 2005/07/13 12:34:21 joerg Exp $ 28 */ 29 30 #include <libgen.h> 31 #include <stdarg.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <string.h> 35 36 #include <security/pam_appl.h> 37 #include <security/openpam.h> 38 #include <security/pam_mod_misc.h> 39 40 /* Print a verbose error, including the function name and a 41 * cleaned up filename. 42 */ 43 void 44 _pam_verbose_error(pam_handle_t *pamh, int flags, 45 const char *file, const char *function, const char *format, ...) 46 { 47 va_list ap; 48 char *fmtbuf, *modname, *period; 49 50 if (!(flags & PAM_SILENT) && !openpam_get_option(pamh, "no_warn")) { 51 modname = basename(file); 52 period = strchr(modname, '.'); 53 if (period == NULL) 54 period = strchr(modname, '\0'); 55 va_start(ap, format); 56 asprintf(&fmtbuf, "%.*s: %s: %s\n", (int)(period - modname), 57 modname, function, format); 58 pam_verror(pamh, fmtbuf, ap); 59 free(fmtbuf); 60 va_end(ap); 61 } 62 } 63