1/*	$NetBSD: str.c,v 1.3 2021/04/10 19:49:59 nia Exp $	*/
2
3#if HAVE_CONFIG_H
4#include "config.h"
5#endif
6#include <nbcompat.h>
7#if HAVE_SYS_CDEFS_H
8#include <sys/cdefs.h>
9#endif
10__RCSID("$NetBSD: str.c,v 1.3 2021/04/10 19:49:59 nia Exp $");
11
12/*
13 * FreeBSD install - a package for the installation and maintainance
14 * of non-core utilities.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 * 1. Redistributions of source code must retain the above copyright
20 *    notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 *    notice, this list of conditions and the following disclaimer in the
23 *    documentation and/or other materials provided with the distribution.
24 *
25 * Jordan K. Hubbard
26 * 18 July 1993
27 *
28 * Miscellaneous string utilities.
29 *
30 */
31
32#if HAVE_ASSERT_H
33#include <assert.h>
34#endif
35#if HAVE_ERR_H
36#include <err.h>
37#endif
38#if HAVE_FNMATCH_H
39#include <fnmatch.h>
40#endif
41#include "lib.h"
42#include "dewey.h"
43
44/* pull in definitions and macros for resizing arrays as we go */
45#include "defs.h"
46
47/*
48 * Return the suffix portion of a path
49 */
50const char *
51suffix_of(const char *str)
52{
53	const char *dot;
54
55	return ((dot = strrchr(basename_of(str), '.')) == NULL) ? "" : dot + 1;
56}
57
58/*
59 * Return the filename portion of a path
60 */
61const char *
62basename_of(const char *str)
63{
64	const char *slash;
65
66	return ((slash = strrchr(str, '/')) == NULL) ? str : slash + 1;
67}
68
69/*
70 * Return the dirname portion of a path
71 */
72const char *
73dirname_of(const char *path)
74{
75	size_t  cc;
76	char   *s;
77	static char buf[MaxPathSize];
78
79	if ((s = strrchr(path, '/')) == NULL) {
80		return ".";
81	}
82	if (s == path) {
83		/* "/foo" -> return "/" */
84		return "/";
85	}
86	cc = (size_t) (s - path);
87	if (cc >= sizeof(buf))
88		errx(EXIT_FAILURE, "dirname_of: too long dirname: '%s'", path);
89	(void) memcpy(buf, path, cc);
90	buf[cc] = 0;
91	return buf;
92}
93
94/*
95 * Does the pkgname contain any of the special chars ("{[]?*<>")?
96 * If so, return 1, else 0
97 */
98int
99ispkgpattern(const char *pkg)
100{
101	return strpbrk(pkg, "<>[]?*{") != NULL;
102}
103