xref: /titanic_41/usr/src/head/string.h (revision 4656d4747c8743290bfbe910c64cd75eb4e4af8d)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
24  */
25 
26 /*	Copyright (c) 1988 AT&T	*/
27 /*	  All Rights Reserved  	*/
28 
29 #ifndef _STRING_H
30 #define	_STRING_H
31 
32 #include <iso/string_iso.h>
33 
34 /*
35  * Allow global visibility for symbols defined in
36  * C++ "std" namespace in <iso/string_iso.h>.
37  */
38 #if __cplusplus >= 199711L
39 using std::size_t;
40 using std::memchr;
41 using std::memcmp;
42 using std::memcpy;
43 using std::memmove;
44 using std::memset;
45 using std::strcat;
46 using std::strchr;
47 using std::strcmp;
48 using std::strcoll;
49 using std::strcpy;
50 using std::strcspn;
51 using std::strerror;
52 using std::strlen;
53 using std::strncat;
54 using std::strncmp;
55 using std::strncpy;
56 using std::strpbrk;
57 using std::strrchr;
58 using std::strspn;
59 using std::strstr;
60 using std::strtok;
61 using std::strxfrm;
62 #endif
63 
64 #ifdef	__cplusplus
65 extern "C" {
66 #endif
67 
68 #if defined(__STDC__)
69 
70 #if defined(__EXTENSIONS__) || \
71 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
72 	defined(_XPG6) || defined(_REENTRANT)
73 extern int strerror_r(int, char *, size_t);
74 #endif
75 
76 #if defined(__EXTENSIONS__) || \
77 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
78 	(_POSIX_C_SOURCE - 0 >= 199506L) || defined(_REENTRANT)
79 extern char *strtok_r(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD,
80 	char **_RESTRICT_KYWD);
81 #endif
82 
83 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
84 	defined(__XOPEN_OR_POSIX)
85 extern void *memccpy(void *_RESTRICT_KYWD, const void *_RESTRICT_KYWD,
86 		int, size_t);
87 #endif
88 
89 #if defined(__EXTENSIONS__) || \
90 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
91 	/* || defined(_XPG7) */
92 extern int strcasecmp(const char *, const char *);
93 extern int strncasecmp(const char *, const char *, size_t);
94 extern char *stpcpy(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD);
95 extern char *stpncpy(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD, size_t);
96 extern char *strndup(const char *, size_t);
97 extern size_t strnlen(const char *, size_t);
98 extern char *strsignal(int);
99 #endif
100 
101 #if defined(__EXTENSIONS__) || \
102 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
103 extern int uucopy(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, size_t);
104 extern int uucopystr(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, size_t);
105 extern int ffs(int);
106 extern int ffsl(long);
107 extern int ffsll(long long);
108 extern int fls(int);
109 extern int flsl(long);
110 extern int flsll(long long);
111 extern void *memmem(const void *, size_t, const void *, size_t);
112 extern char *strcasestr(const char *, const char *);
113 extern char *strnstr(const char *, const char *, size_t);
114 extern size_t strlcpy(char *, const char *, size_t);
115 extern size_t strlcat(char *, const char *, size_t);
116 extern char *strsep(char **stringp, const char *delim);
117 extern char *strchrnul(const char *, int);
118 #endif /* defined(__EXTENSIONS__)... */
119 
120 #if defined(__EXTENSIONS__) || \
121 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
122 	defined(_XPG4_2)
123 extern char *strdup(const char *);
124 #endif
125 
126 #if defined(__EXTENSIONS__) || \
127 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
128 #if defined(__GNUC__)
129 
130 /*
131  * gcc provides this inlining facility but Studio C does not.
132  * We should use it exclusively once Studio C also provides it.
133  */
134 extern void *__builtin_alloca(size_t);
135 
136 #define	strdupa(s)							\
137 	(__extension__(							\
138 	{								\
139 	char *__str = (char *)(s);					\
140 	strcpy((char *)__builtin_alloca(strlen(__str) + 1), __str);	\
141 	}))
142 
143 #define	strndupa(s, n)							\
144 	(__extension__(							\
145 	{								\
146 	char *__str = (char *)(s);					\
147 	size_t __len = strnlen(__str, (n));				\
148 	(__str = strncpy((char *)__builtin_alloca(__len + 1),		\
149 	    __str, __len),						\
150 	__str[__len] = '\0', __str);					\
151 	}))
152 
153 #else	/* __GNUC__ */
154 
155 #if defined(unix)	/* excludes c99 */
156 /*
157  * Studio C currently can't do the gcc-style inlining,
158  * so we use thread-local storage instead.
159  */
160 extern void *__builtin_alloca(size_t);
161 extern __thread char *__strdupa_str;
162 extern __thread size_t __strdupa_len;
163 
164 #define	strdupa(s)							\
165 	(__strdupa_str = (char *)(s), 					\
166 	strcpy((char *)__builtin_alloca(strlen(__strdupa_str) + 1),	\
167 	    __strdupa_str))
168 
169 #define	strndupa(s, n)							\
170 	(__strdupa_str = (char *)(s),					\
171 	__strdupa_len = strnlen(__strdupa_str, (n)),			\
172 	__strdupa_str = strncpy((char *)__builtin_alloca(__strdupa_len + 1), \
173 	    __strdupa_str, __strdupa_len),				\
174 	__strdupa_str[__strdupa_len] = '\0', __strdupa_str)
175 #endif	/* unix */
176 
177 #endif	/* __GNUC__ */
178 #endif	/* __EXTENSIONS__ ... */
179 
180 #else	/* __STDC__ */
181 
182 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
183 	defined(_XPG6) || defined(_REENTRANT)
184 extern int strerror_r();
185 #endif
186 
187 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
188 	(_POSIX_C_SOURCE - 0 >= 199506L) || defined(_REENTRANT)
189 extern char *strtok_r();
190 #endif
191 
192 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
193 	defined(__XOPEN_OR_POSIX)
194 extern void *memccpy();
195 #endif
196 
197 #if defined(__EXTENSIONS__) || \
198 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
199 	/* || defined(_XPG7) */
200 extern int strcasecmp();
201 extern int strncasecmp();
202 extern char *stpcpy();
203 extern char *stpncpy();
204 extern char *strndup();
205 extern size_t strnlen();
206 extern char *strsignal();
207 #endif
208 
209 #if defined(__EXTENSIONS__) || \
210 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
211 extern int uucopy();
212 extern int uucopystr();
213 extern int ffs();
214 extern int ffsl();
215 extern int ffsll();
216 extern int fls();
217 extern int flsl();
218 extern int flsll();
219 extern char *strcasestr();
220 extern char *strnstr();
221 extern size_t strlcpy();
222 extern size_t strlcat();
223 extern char *strsep();
224 extern char *strchrnul();
225 #endif /* defined(__EXTENSIONS__) ... */
226 
227 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)
228 extern char *strdup();
229 #endif
230 
231 #endif	/* __STDC__ */
232 
233 #ifdef	__cplusplus
234 }
235 #endif
236 
237 #endif	/* _STRING_H */
238