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 * Copyright 2020 Joyent, Inc.
26 */
27
28 /* Copyright (c) 1988 AT&T */
29 /* All Rights Reserved */
30
31 #ifndef _STRING_H
32 #define _STRING_H
33
34 #include <iso/string_iso.h>
35
36 /*
37 * Allow global visibility for symbols defined in
38 * C++ "std" namespace in <iso/string_iso.h>.
39 */
40 #if __cplusplus >= 199711L
41 using std::size_t;
42 using std::memchr;
43 using std::memcmp;
44 using std::memcpy;
45 using std::memmove;
46 using std::memset;
47 using std::strcat;
48 using std::strchr;
49 using std::strcmp;
50 using std::strcoll;
51 using std::strcpy;
52 using std::strcspn;
53 using std::strerror;
54 using std::strlen;
55 using std::strncat;
56 using std::strncmp;
57 using std::strncpy;
58 using std::strpbrk;
59 using std::strrchr;
60 using std::strspn;
61 using std::strstr;
62 using std::strtok;
63 using std::strxfrm;
64 #endif
65
66 #ifdef __cplusplus
67 extern "C" {
68 #endif
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(_STRICT_SYMBOLS) || defined(_XPG7)
90
91 extern char *stpcpy(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD);
92 extern char *stpncpy(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD, size_t);
93 extern char *strndup(const char *, size_t);
94 extern size_t strnlen(const char *, size_t);
95 extern char *strsignal(int);
96
97 #ifndef _LOCALE_T
98 #define _LOCALE_T
99 typedef struct _locale *locale_t;
100 #endif
101
102 extern int strcoll_l(const char *, const char *, locale_t);
103 extern size_t strxfrm_l(char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD,
104 size_t, locale_t);
105 extern int strcasecmp_l(const char *, const char *, locale_t);
106 extern int strncasecmp_l(const char *, const char *, size_t, locale_t);
107 extern char *strerror_l(int, locale_t);
108
109 #endif /* defined(_STRICT_SYMBOLS) || defined(_XPG7) */
110
111 #if !defined(_STRICT_SYMBOLS)
112
113 /* Note that some of these are also declared in strings.h for XPG4_2+ */
114 extern void explicit_bzero(void *, size_t);
115 extern int uucopy(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, size_t);
116 extern int uucopystr(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, size_t);
117 extern int ffs(int);
118 extern int ffsl(long);
119 extern int ffsll(long long);
120 extern int fls(int);
121 extern int flsl(long);
122 extern int flsll(long long);
123 extern void *memmem(const void *, size_t, const void *, size_t);
124 extern char *strcasestr(const char *, const char *);
125 extern char *strnstr(const char *, const char *, size_t);
126 extern size_t strlcpy(char *, const char *, size_t);
127 extern size_t strlcat(char *, const char *, size_t);
128 extern char *strsep(char **stringp, const char *delim);
129 extern char *strchrnul(const char *, int);
130 extern char *strcasestr_l(const char *, const char *, locale_t);
131 extern int strcasecmp(const char *, const char *);
132 extern int strncasecmp(const char *, const char *, size_t);
133 #endif /* defined(__EXTENSIONS__)... */
134
135 #if defined(__EXTENSIONS__) || \
136 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
137 defined(_XPG4_2)
138 extern char *strdup(const char *);
139 #endif
140
141 #if defined(__EXTENSIONS__) || \
142 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
143
144 #if defined(__GNUC__)
145
146 #define strdupa(s) \
147 (__extension__( \
148 { \
149 char *__str = (char *)(s); \
150 strcpy((char *)__builtin_alloca(strlen(__str) + 1), __str); \
151 }))
152
153 #define strndupa(s, n) \
154 (__extension__( \
155 { \
156 char *__str = (char *)(s); \
157 size_t __len = strnlen(__str, (n)); \
158 (__str = strncpy((char *)__builtin_alloca(__len + 1), \
159 __str, __len), \
160 __str[__len] = '\0', __str); \
161 }))
162
163 #else /* __GNUC__ */
164
165 #if defined(unix) /* excludes c99 */
166 /*
167 * Studio C currently can't do the gcc-style inlining,
168 * so we use thread-local storage instead.
169 */
170 extern void *__builtin_alloca(size_t);
171 extern __thread char *__strdupa_str;
172 extern __thread size_t __strdupa_len;
173
174 #define strdupa(s) \
175 (__strdupa_str = (char *)(s), \
176 strcpy((char *)__builtin_alloca(strlen(__strdupa_str) + 1), \
177 __strdupa_str))
178
179 #define strndupa(s, n) \
180 (__strdupa_str = (char *)(s), \
181 __strdupa_len = strnlen(__strdupa_str, (n)), \
182 __strdupa_str = strncpy((char *)__builtin_alloca(__strdupa_len + 1), \
183 __strdupa_str, __strdupa_len), \
184 __strdupa_str[__strdupa_len] = '\0', __strdupa_str)
185 #endif /* unix */
186
187 #endif /* __GNUC__ */
188 #endif /* __EXTENSIONS__ ... */
189
190 #ifdef __cplusplus
191 }
192 #endif
193
194 #endif /* _STRING_H */