usr/dash/system.c

/*
 * Copyright (c) 2004
 *	Herbert Xu <herbert@gondor.apana.org.au>.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef HAVE_ISALPHA
#define isalnum _isalnum
#define iscntrl _iscntrl
#define islower _islower
#define isspace _isspace
#define isalpha _isalpha
#define isdigit _isdigit
#define isprint _isprint
#define isupper _isupper
#define isblank _isblank
#define isgraph _isgraph
#define ispunct _ispunct
#define isxdigit _isxdigit
#include <ctype.h>
#undef isalnum
#undef iscntrl
#undef islower
#undef isspace
#undef isalpha
#undef isdigit
#undef isprint
#undef isupper
#undef isblank
#undef isgraph
#undef ispunct
#undef isxdigit
#endif

#include <signal.h>
#include <string.h>

#include "error.h"
#include "output.h"
#include "system.h"

#ifndef HAVE_MEMPCPY
void *mempcpy(void *dest, const void *src, size_t n)
{
	return memcpy(dest, src, n) + n;
}
#endif

#ifndef HAVE_STPCPY
char *stpcpy(char *dest, const char *src)
{
	size_t len = strlen(src);
	dest[len] = 0;
	return mempcpy(dest, src, len);
}
#endif

#ifndef HAVE_STRCHRNUL
char *strchrnul(const char *s, int c)
{
	char *p = strchr(s, c);
	if (!p)
		p = (char *)s + strlen(s);
	return p;
}
#endif

#ifndef HAVE_STRSIGNAL
char *strsignal(int sig)
{
	static char buf[19];

	if ((unsigned)sig < NSIG && sys_siglist[sig])
		return (char *)sys_siglist[sig];
	fmtstr(buf, sizeof(buf), "Signal %d", sig);
	return buf;
}
#endif

#ifndef HAVE_BSEARCH
void *bsearch(const void *key, const void *base, size_t nmemb,
	      size_t size, int (*cmp)(const void *, const void *))
{
	while (nmemb) {
		size_t mididx = nmemb / 2;
		const void *midobj = base + mididx * size;
		int diff = cmp(key, midobj);

		if (diff == 0)
			return (void *)midobj;

		if (diff > 0) {
			base = midobj + size;
			nmemb -= mididx + 1;
		} else
			nmemb = mididx;
	}

	return 0;
}
#endif

#ifndef HAVE_SYSCONF
long sysconf(int name)
{
	sh_error("no sysconf for: %d", name);
}
#endif

#ifndef HAVE_ISALPHA
int isalnum(int c) {
	return _isalnum(c);
}


int iscntrl(int c) {
	return _iscntrl(c);
}


int islower(int c) {
	return _islower(c);
}


int isspace(int c) {
	return _isspace(c);
}


int isalpha(int c) {
	return _isalpha(c);
}


int isdigit(int c) {
	return _isdigit(c);
}


int isprint(int c) {
	return _isprint(c);
}


int isupper(int c) {
	return _isupper(c);
}


int isblank(int c) {
	return _isblank(c);
}


int isgraph(int c) {
	return _isgraph(c);
}


int ispunct(int c) {
	return _ispunct(c);
}


int isxdigit(int c) {
	return _isxdigit(c);
}
#endif
1	/*
2	* Copyright (c) 2004
3	* Herbert Xu <herbert@gondor.apana.org.au>. 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	* 3. The name of the author may not be used to endorse or promote products
14	* derived from this software without specific prior written permission.
15	*
16	* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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	#ifndef HAVE_ISALPHA
30	#define isalnum _isalnum
31	#define iscntrl _iscntrl
32	#define islower _islower
33	#define isspace _isspace
34	#define isalpha _isalpha
35	#define isdigit _isdigit
36	#define isprint _isprint
37	#define isupper _isupper
38	#define isblank _isblank
39	#define isgraph _isgraph
40	#define ispunct _ispunct
41	#define isxdigit _isxdigit
42	#include <ctype.h>
43	#undef isalnum
44	#undef iscntrl
45	#undef islower
46	#undef isspace
47	#undef isalpha
48	#undef isdigit
49	#undef isprint
50	#undef isupper
51	#undef isblank
52	#undef isgraph
53	#undef ispunct
54	#undef isxdigit
55	#endif
56
57	#include <signal.h>
58	#include <string.h>
59
60	#include "error.h"
61	#include "output.h"
62	#include "system.h"
63
64	#ifndef HAVE_MEMPCPY
65	void mempcpy(void dest, const void *src, size_t n)
66	{
67	return memcpy(dest, src, n) + n;
68	}
69	#endif
70
71	#ifndef HAVE_STPCPY
72	char stpcpy(char dest, const char *src)
73	{
74	size_t len = strlen(src);
75	dest[len] = 0;
76	return mempcpy(dest, src, len);
77	}
78	#endif
79
80	#ifndef HAVE_STRCHRNUL
81	char strchrnul(const char s, int c)
82	{
83	char *p = strchr(s, c);
84	if (!p)
85	p = (char *)s + strlen(s);
86	return p;
87	}
88	#endif
89
90	#ifndef HAVE_STRSIGNAL
91	char *strsignal(int sig)
92	{
93	static char buf[19];
94
95	if ((unsigned)sig < NSIG && sys_siglist[sig])
96	return (char *)sys_siglist[sig];
97	fmtstr(buf, sizeof(buf), "Signal %d", sig);
98	return buf;
99	}
100	#endif
101
102	#ifndef HAVE_BSEARCH
103	void bsearch(const void key, const void *base, size_t nmemb,
104	size_t size, int (cmp)(const void , const void *))
105	{
106	while (nmemb) {
107	size_t mididx = nmemb / 2;
108	const void midobj = base + mididx size;
109	int diff = cmp(key, midobj);
110
111	if (diff == 0)
112	return (void *)midobj;
113
114	if (diff > 0) {
115	base = midobj + size;
116	nmemb -= mididx + 1;
117	} else
118	nmemb = mididx;
119	}
120
121	return 0;
122	}
123	#endif
124
125	#ifndef HAVE_SYSCONF
126	long sysconf(int name)
127	{
128	sh_error("no sysconf for: %d", name);
129	}
130	#endif
131
132	#ifndef HAVE_ISALPHA
133	int isalnum(int c) {
134	return _isalnum(c);
135	}
136
137
138	int iscntrl(int c) {
139	return _iscntrl(c);
140	}
141
142
143	int islower(int c) {
144	return _islower(c);
145	}
146
147
148	int isspace(int c) {
149	return _isspace(c);
150	}
151
152
153	int isalpha(int c) {
154	return _isalpha(c);
155	}
156
157
158	int isdigit(int c) {
159	return _isdigit(c);
160	}
161
162
163	int isprint(int c) {
164	return _isprint(c);
165	}
166
167
168	int isupper(int c) {
169	return _isupper(c);
170	}
171
172
173	int isblank(int c) {
174	return _isblank(c);
175	}
176
177
178	int isgraph(int c) {
179	return _isgraph(c);
180	}
181
182
183	int ispunct(int c) {
184	return _ispunct(c);
185	}
186
187
188	int isxdigit(int c) {
189	return _isxdigit(c);
190	}
191	#endif