1 /* $NetBSD: pam_debug_log.c,v 1.2 2004/12/12 08:18:43 christos Exp $ */ 2 3 /*- 4 * Copyright 2001 Mark R V Murray 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 #ifdef __FreeBSD__ 31 __FBSDID("$FreeBSD: src/lib/libpam/libpam/pam_debug_log.c,v 1.8 2002/04/14 16:44:04 des Exp $"); 32 #else 33 __RCSID("$NetBSD: pam_debug_log.c,v 1.2 2004/12/12 08:18:43 christos Exp $"); 34 #endif 35 36 #include <libgen.h> 37 #include <stdarg.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <string.h> 41 42 #include <security/pam_appl.h> 43 #include <security/openpam.h> 44 #include <security/pam_mod_misc.h> 45 46 /* Print a verbose error, including the function name and a 47 * cleaned up filename. 48 */ 49 void 50 _pam_verbose_error(pam_handle_t *pamh, int flags, 51 const char *file, const char *function, const char *format, ...) 52 { 53 va_list ap; 54 char *fmtbuf; 55 const char *modname, *period; 56 57 if (!(flags & PAM_SILENT) && !openpam_get_option(pamh, "no_warn")) { 58 modname = strrchr(file, '/'); 59 if (modname == NULL) 60 modname = file; 61 period = strchr(modname, '.'); 62 if (period == NULL) 63 period = strchr(modname, '\0'); 64 va_start(ap, format); 65 asprintf(&fmtbuf, "%.*s: %s: %s\n", 66 (int)(ssize_t)(period - modname), modname, function, 67 format); 68 pam_verror(pamh, fmtbuf, ap); 69 free(fmtbuf); 70 va_end(ap); 71 } 72 } 73