1/* $NetBSD: setprogname.c,v 1.1.1.1 2011/04/13 18:15:43 elric Exp $ */ 2 3/* 4 * Copyright (c) 1995-2004 Kungliga Tekniska Högskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36#include <config.h> 37 38#include <krb5/roken.h> 39 40#ifndef HAVE___PROGNAME 41extern const char *__progname; 42#endif 43 44#ifndef HAVE_SETPROGNAME 45 46ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL 47setprogname(const char *argv0) 48{ 49 50#ifndef HAVE___PROGNAME 51 52 const char *p; 53 if(argv0 == NULL) 54 return; 55 p = strrchr(argv0, '/'); 56 57#ifdef BACKSLASH_PATH_DELIM 58 { 59 const char * pb; 60 61 pb = strrchr((p != NULL)? p : argv0, '\\'); 62 if (pb != NULL) 63 p = pb; 64 } 65#endif 66 67 if(p == NULL) 68 p = argv0; 69 else 70 p++; 71 72#ifdef _WIN32 73 { 74 char * fn = strdup(p); 75 char * ext; 76 77 strlwr(fn); 78 ext = strrchr(fn, '.'); 79 if (ext != NULL && !strcmp(ext, ".exe")) 80 *ext = '\0'; 81 82 __progname = fn; 83 } 84#else 85 86 __progname = p; 87 88#endif 89 90#endif /* HAVE___PROGNAME */ 91} 92 93#endif /* HAVE_SETPROGNAME */ 94