1 /**************************************************************************
2 *
3 * Copyright 2008 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 /**
29 * @file
30 * Platform independent functions for string manipulation.
31 *
32 * @author Jose Fonseca <jfonseca@vmware.com>
33 */
34
35 #ifndef U_STRING_H_
36 #define U_STRING_H_
37
38 #if !defined(XF86_LIBC_H)
39 #include <stdio.h>
40 #endif
41 #include <stdlib.h>
42 #include <stddef.h>
43 #include <stdarg.h>
44 #include <string.h>
45 #include <limits.h>
46
47 #include "util/macros.h" // PRINTFLIKE
48
49
50 #ifdef __cplusplus
51 extern "C" {
52 #endif
53
54 #if !defined(_GNU_SOURCE) || defined(__APPLE__)
55
56 #define strchrnul util_strchrnul
57 static inline char *
util_strchrnul(const char * s,char c)58 util_strchrnul(const char *s, char c)
59 {
60 for (; *s && *s != c; ++s);
61
62 return (char *)s;
63 }
64
65 #endif
66
67 #ifdef _WIN32
68
69 #define sprintf util_sprintf
70 static inline void
71 PRINTFLIKE(2, 3)
util_sprintf(char * str,const char * format,...)72 util_sprintf(char *str, const char *format, ...)
73 {
74 va_list ap;
75 va_start(ap, format);
76 vsnprintf(str, INT_MAX, format, ap);
77 va_end(ap);
78 }
79
80 #define vasprintf util_vasprintf
81 static inline int
util_vasprintf(char ** ret,const char * format,va_list ap)82 util_vasprintf(char **ret, const char *format, va_list ap)
83 {
84 va_list ap_copy;
85
86 /* Compute length of output string first */
87 va_copy(ap_copy, ap);
88 int r = vsnprintf(NULL, 0, format, ap_copy);
89 va_end(ap_copy);
90
91 if (r < 0)
92 return -1;
93
94 *ret = (char *) malloc(r + 1);
95 if (!*ret)
96 return -1;
97
98 /* Print to buffer */
99 return vsnprintf(*ret, r + 1, format, ap);
100 }
101
102 #define asprintf util_asprintf
103 static inline int
util_asprintf(char ** str,const char * fmt,...)104 util_asprintf(char **str, const char *fmt, ...)
105 {
106 int ret;
107 va_list args;
108 va_start(args, fmt);
109 ret = vasprintf(str, fmt, args);
110 va_end(args);
111 return ret;
112 }
113
114 #ifndef strcasecmp
115 #define strcasecmp stricmp
116 #endif
117
118 #define strdup _strdup
119
120 #if defined(_WIN32) && !defined(HAVE_STRTOK_R)
121 #define strtok_r strtok_s
122 #endif
123
124 #endif
125
126
127 #ifdef __cplusplus
128 }
129 #endif
130
131 #endif /* U_STRING_H_ */
132