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
41 extern const char *__progname;
42 #endif
43
44 #ifndef HAVE_SETPROGNAME
45
46 ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
setprogname(const char * argv0)47 setprogname(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