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 2014 Garrett D'Amore <garrett@damore.org>
24 * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 #ifndef _STRING_H
31 #define _STRING_H
32
33 #include <iso/string_iso.h>
34
35 /*
36 * Allow global visibility for symbols defined in
37 * C++ "std" namespace in <iso/string_iso.h>.
38 */
39 #if __cplusplus >= 199711L
40 using std::size_t;
41 using std::memchr;
42 using std::memcmp;
43 using std::memcpy;
44 using std::memmove;
45 using std::memset;
46 using std::strcat;
47 using std::strchr;
48 using std::strcmp;
49 using std::strcoll;
50 using std::strcpy;
51 using std::strcspn;
52 using std::strerror;
53 using std::strlen;
54 using std::strncat;
55 using std::strncmp;
56 using std::strncpy;
57 using std::strpbrk;
58 using std::strrchr;
59 using std::strspn;
60 using std::strstr;
61 using std::strtok;
62 using std::strxfrm;
63 #endif
64
65 #ifdef __cplusplus
66 extern "C" {
67 #endif
68
69 #if defined(__EXTENSIONS__) || \
70 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
71 defined(_XPG6) || defined(_REENTRANT)
72 extern int strerror_r(int, char *, size_t);
73 #endif
74
75 #if defined(__EXTENSIONS__) || \
76 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
77 (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_REENTRANT)
78 extern char *strtok_r(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD,
79 char **_RESTRICT_KYWD);
80 #endif
81
82 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
83 defined(__XOPEN_OR_POSIX)
84 extern void *memccpy(void *_RESTRICT_KYWD, const void *_RESTRICT_KYWD,
85 int, size_t);
86 #endif
87
88 #if !defined(_STRICT_SYMBOLS) || defined(_XPG7)
89
90 extern char *stpcpy(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD);
91 extern char *stpncpy(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD, size_t);
92 extern char *strndup(const char *, size_t);
93 extern size_t strnlen(const char *, size_t);
94 extern char *strsignal(int);
95
96 #ifndef _LOCALE_T
97 #define _LOCALE_T
98 typedef struct _locale *locale_t;
99 #endif
100
101 extern int strcoll_l(const char *, const char *, locale_t);
102 extern size_t strxfrm_l(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD,
103 size_t, locale_t);
104 extern int strcasecmp_l(const char *, const char *, locale_t);
105 extern int strncasecmp_l(const char *, const char *, size_t, locale_t);
106 extern char *strerror_l(int, locale_t);
107
108 #endif /* defined(_STRICT_SYMBOLS) || defined(_XPG7) */
109
110 #if !defined(_STRICT_SYMBOLS)
111
112 /* Note that some of these are also declared in strings.h for XPG4_2+ */
113 extern void explicit_bzero(void *, size_t);
114 extern int uucopy(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, size_t);
115 extern int uucopystr(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, size_t);
116 extern int ffs(int);
117 extern int ffsl(long);
118 extern int ffsll(long long);
119 extern int fls(int);
120 extern int flsl(long);
121 extern int flsll(long long);
122 extern void *memmem(const void *, size_t, const void *, size_t);
123 extern char *strcasestr(const char *, const char *);
124 extern char *strnstr(const char *, const char *, size_t);
125 extern size_t strlcpy(char *, const char *, size_t);
126 extern size_t strlcat(char *, const char *, size_t);
127 extern char *strsep(char **stringp, const char *delim);
128 extern char *strchrnul(const char *, int);
129 extern char *strcasestr_l(const char *, const char *, locale_t);
130 extern int strcasecmp(const char *, const char *);
131 extern int strncasecmp(const char *, const char *, size_t);
132 #endif /* defined(__EXTENSIONS__)... */
133
134 #if defined(__EXTENSIONS__) || \
135 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
136 defined(_XPG4_2)
137 extern char *strdup(const char *);
138 #endif
139
140 #if defined(__EXTENSIONS__) || \
141 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
142 #if defined(__GNUC__)
143
144 /*
145 * gcc provides this inlining facility but Studio C does not.
146 * We should use it exclusively once Studio C also provides it.
147 */
148 extern void *__builtin_alloca(size_t);
149
150 #define strdupa(s) \
151 (__extension__( \
152 { \
153 char *__str = (char *)(s); \
154 strcpy((char *)__builtin_alloca(strlen(__str) + 1), __str); \
155 }))
156
157 #define strndupa(s, n) \
158 (__extension__( \
159 { \
160 char *__str = (char *)(s); \
161 size_t __len = strnlen(__str, (n)); \
162 (__str = strncpy((char *)__builtin_alloca(__len + 1), \
163 __str, __len), \
164 __str[__len] = '\0', __str); \
165 }))
166
167 #else /* __GNUC__ */
168
169 #if defined(unix) /* excludes c99 */
170 /*
171 * Studio C currently can't do the gcc-style inlining,
172 * so we use thread-local storage instead.
173 */
174 extern void *__builtin_alloca(size_t);
175 extern __thread char *__strdupa_str;
176 extern __thread size_t __strdupa_len;
177
178 #define strdupa(s) \
179 (__strdupa_str = (char *)(s), \
180 strcpy((char *)__builtin_alloca(strlen(__strdupa_str) + 1), \
181 __strdupa_str))
182
183 #define strndupa(s, n) \
184 (__strdupa_str = (char *)(s), \
185 __strdupa_len = strnlen(__strdupa_str, (n)), \
186 __strdupa_str = strncpy((char *)__builtin_alloca(__strdupa_len + 1), \
187 __strdupa_str, __strdupa_len), \
188 __strdupa_str[__strdupa_len] = '\0', __strdupa_str)
189 #endif /* unix */
190
191 #endif /* __GNUC__ */
192 #endif /* __EXTENSIONS__ ... */
193
194 #ifdef __cplusplus
195 }
196 #endif
197
198 #endif /* _STRING_H */