The Pedigree Project  0.1
def.h
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1 /*
2  * Copyright (c) 2008-2014, Pedigree Developers
3  *
4  * Please see the CONTRIB file in the root of the source tree for a full
5  * list of contributors.
6  *
7  * Permission to use, copy, modify, and distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  */
19 
25 /*
26  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
27  * All rights reserved.
28  *
29  * Redistribution and use in source and binary forms, with or without modification,
30  * are permitted provided that the following conditions are met:
31  *
32  * 1. Redistributions of source code must retain the above copyright notice,
33  * this list of conditions and the following disclaimer.
34  * 2. Redistributions in binary form must reproduce the above copyright notice,
35  * this list of conditions and the following disclaimer in the documentation
36  * and/or other materials provided with the distribution.
37  * 3. The name of the author may not be used to endorse or promote products
38  * derived from this software without specific prior written permission.
39  *
40  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
41  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
42  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
43  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
44  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
45  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
46  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
47  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
48  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
49  * OF SUCH DAMAGE.
50  *
51  * This file is part of the lwIP TCP/IP stack.
52  *
53  * Author: Adam Dunkels <adam@sics.se>
54  *
55  */
56 #ifndef LWIP_HDR_DEF_H
57 #define LWIP_HDR_DEF_H
58 
59 /* arch.h might define NULL already */
60 #include "lwip/arch.h"
61 #include "lwip/opt.h"
62 #if LWIP_PERF
63 #include "arch/perf.h"
64 #else /* LWIP_PERF */
65 #define PERF_START /* null definition */
66 #define PERF_STOP(x) /* null definition */
67 #endif /* LWIP_PERF */
68 
69 #ifdef __cplusplus
70 extern "C" {
71 #endif
72 
73 #define LWIP_MAX(x , y) (((x) > (y)) ? (x) : (y))
74 #define LWIP_MIN(x , y) (((x) < (y)) ? (x) : (y))
75 
76 /* Get the number of entries in an array ('x' must NOT be a pointer!) */
77 #define LWIP_ARRAYSIZE(x) (sizeof(x)/sizeof((x)[0]))
78 
80 #define LWIP_MAKEU32(a,b,c,d) (((u32_t)((a) & 0xff) << 24) | \
81  ((u32_t)((b) & 0xff) << 16) | \
82  ((u32_t)((c) & 0xff) << 8) | \
83  (u32_t)((d) & 0xff))
84 
85 #ifndef NULL
86 #ifdef __cplusplus
87 #define NULL 0
88 #else
89 #define NULL ((void *)0)
90 #endif
91 #endif
92 
93 #if BYTE_ORDER == BIG_ENDIAN
94 #define lwip_htons(x) (x)
95 #define lwip_ntohs(x) (x)
96 #define lwip_htonl(x) (x)
97 #define lwip_ntohl(x) (x)
98 #define PP_HTONS(x) (x)
99 #define PP_NTOHS(x) (x)
100 #define PP_HTONL(x) (x)
101 #define PP_NTOHL(x) (x)
102 #else /* BYTE_ORDER != BIG_ENDIAN */
103 #ifndef lwip_htons
104 u16_t lwip_htons(u16_t x);
105 #endif
106 #define lwip_ntohs(x) lwip_htons(x)
107 
108 #ifndef lwip_htonl
109 u32_t lwip_htonl(u32_t x);
110 #endif
111 #define lwip_ntohl(x) lwip_htonl(x)
112 
113 /* Provide usual function names as macros for users, but this can be turned off */
114 #ifndef LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS
115 #define htons(x) lwip_htons(x)
116 #define ntohs(x) lwip_ntohs(x)
117 #define htonl(x) lwip_htonl(x)
118 #define ntohl(x) lwip_ntohl(x)
119 #endif
120 
121 /* These macros should be calculated by the preprocessor and are used
122  with compile-time constants only (so that there is no little-endian
123  overhead at runtime). */
124 #define PP_HTONS(x) ((((x) & 0x00ffUL) << 8) | (((x) & 0xff00UL) >> 8))
125 #define PP_NTOHS(x) PP_HTONS(x)
126 #define PP_HTONL(x) ((((x) & 0x000000ffUL) << 24) | \
127  (((x) & 0x0000ff00UL) << 8) | \
128  (((x) & 0x00ff0000UL) >> 8) | \
129  (((x) & 0xff000000UL) >> 24))
130 #define PP_NTOHL(x) PP_HTONL(x)
131 
132 #endif /* BYTE_ORDER == BIG_ENDIAN */
133 
134 /* Functions that are not available as standard implementations.
135  * In cc.h, you can #define these to implementations available on
136  * your platform to save some code bytes if you use these functions
137  * in your application, too.
138  */
139 
140 #ifndef lwip_itoa
141 /* This can be #defined to itoa() or snprintf(result, bufsize, "%d", number) depending on your platform */
142 void lwip_itoa(char* result, size_t bufsize, int number);
143 #endif
144 #ifndef lwip_strnicmp
145 /* This can be #defined to strnicmp() or strncasecmp() depending on your platform */
146 int lwip_strnicmp(const char* str1, const char* str2, size_t len);
147 #endif
148 #ifndef lwip_stricmp
149 /* This can be #defined to stricmp() or strcasecmp() depending on your platform */
150 int lwip_stricmp(const char* str1, const char* str2);
151 #endif
152 #ifndef lwip_strnstr
153 /* This can be #defined to strnstr() depending on your platform */
154 char* lwip_strnstr(const char* buffer, const char* token, size_t n);
155 #endif
156 
157 #ifdef __cplusplus
158 }
159 #endif
160 
161 #endif /* LWIP_HDR_DEF_H */
void lwip_itoa(char *result, size_t bufsize, int number)
Definition: def.c:217
char * lwip_strnstr(const char *buffer, const char *token, size_t n)
Definition: def.c:124
int lwip_stricmp(const char *str1, const char *str2)
Definition: def.c:147
int lwip_strnicmp(const char *str1, const char *str2, size_t len)
Definition: def.c:182