1/*
2 * Copyright (c) 1997-2002 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Portions Copyright (c) 2010 Apple Inc. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#ifdef HAVE_CONFIG_H
37#include <config.h>
38RCSID("$Id$");
39#endif
40#include <stdio.h>
41#include <string.h>
42#include <stdlib.h>
43#include <ctype.h>
44#ifdef WIN32
45#include <winsock2.h>
46#include <ws2tcpip.h>
47#endif
48
49#define BITSIZE(TYPE)						\
50{								\
51    int b = 0; TYPE x = 1, zero = 0; const char *pre = "u";	\
52    char tmp[128], tmp2[128];					\
53    while(x){ x <<= 1; b++; if(x < zero) pre=""; }		\
54    if(b >= len){						\
55        size_t tabs;						\
56	sprintf(tmp, "%sint%d_t" , pre, len);			\
57	sprintf(tmp2, "typedef %s %s;", #TYPE, tmp);		\
58	tabs = 5 - strlen(tmp2) / 8;				\
59        fprintf(f, "%s", tmp2);					\
60	while(tabs-- > 0) fprintf(f, "\t");			\
61	fprintf(f, "/* %2d bits */\n", b);			\
62        return;                                                 \
63    }								\
64}
65
66#ifndef HAVE___ATTRIBUTE__
67#define __attribute__(x)
68#endif
69
70static void
71try_signed(FILE *f, int len)  __attribute__ ((unused));
72
73static void
74try_unsigned(FILE *f, int len) __attribute__ ((unused));
75
76static int
77print_bt(FILE *f, int flag) __attribute__ ((unused));
78
79static void
80try_signed(FILE *f, int len)
81{
82    BITSIZE(signed char);
83    BITSIZE(short);
84    BITSIZE(int);
85    BITSIZE(long);
86#ifdef HAVE_LONG_LONG
87    BITSIZE(long long);
88#endif
89    fprintf(f, "/* There is no %d bit type */\n", len);
90}
91
92static void
93try_unsigned(FILE *f, int len)
94{
95    BITSIZE(unsigned char);
96    BITSIZE(unsigned short);
97    BITSIZE(unsigned int);
98    BITSIZE(unsigned long);
99#ifdef HAVE_LONG_LONG
100    BITSIZE(unsigned long long);
101#endif
102    fprintf(f, "/* There is no %d bit type */\n", len);
103}
104
105static int
106print_bt(FILE *f, int flag)
107{
108    if(flag == 0){
109	fprintf(f, "/* For compatibility with various type definitions */\n");
110	fprintf(f, "#ifndef __BIT_TYPES_DEFINED__\n");
111	fprintf(f, "#define __BIT_TYPES_DEFINED__\n");
112	fprintf(f, "\n");
113    }
114    return 1;
115}
116
117int main(int argc, char **argv)
118{
119    FILE *f;
120    int flag;
121    const char *fn, *hb;
122
123    if (argc > 1 && strcmp(argv[1], "--version") == 0) {
124	printf("some version");
125	return 0;
126    }
127
128    if(argc < 2){
129	fn = "bits.h";
130	hb = "__BITS_H__";
131	f = stdout;
132    } else {
133	char *p;
134	fn = argv[1];
135	p = malloc(strlen(fn) + 5);
136	sprintf(p, "__%s__", fn);
137	hb = p;
138	for(; *p; p++){
139	    if(!isalnum((unsigned char)*p))
140		*p = '_';
141	}
142	f = fopen(argv[1], "w");
143    }
144    fprintf(f, "/* %s -- this file was generated for %s by\n", fn, HOST);
145    fprintf(f, "   %*s    %s */\n\n", (int)strlen(fn), "",
146	    "$Id$");
147    fprintf(f, "#ifndef %s\n", hb);
148    fprintf(f, "#define %s\n", hb);
149    fprintf(f, "\n");
150#ifdef HAVE_INTTYPES_H
151    fprintf(f, "#include <inttypes.h>\n");
152#endif
153#ifdef HAVE_SYS_TYPES_H
154    fprintf(f, "#include <sys/types.h>\n");
155#endif
156#ifdef HAVE_SYS_BITYPES_H
157    fprintf(f, "#include <sys/bitypes.h>\n");
158#endif
159#ifdef HAVE_BIND_BITYPES_H
160    fprintf(f, "#include <bind/bitypes.h>\n");
161#endif
162#ifdef HAVE_NETINET_IN6_MACHTYPES_H
163    fprintf(f, "#include <netinet/in6_machtypes.h>\n");
164#endif
165#ifdef HAVE_SOCKLEN_T
166#ifndef WIN32
167    fprintf(f, "#include <sys/socket.h>\n");
168#else
169    fprintf(f, "#include <winsock2.h>\n");
170    fprintf(f, "#include <ws2tcpip.h>\n");
171#endif
172#endif
173    fprintf(f, "\n");
174
175    flag = 0;
176#ifndef HAVE_INT8_T
177    flag = print_bt(f, flag);
178    try_signed (f, 8);
179#endif /* HAVE_INT8_T */
180#ifndef HAVE_INT16_T
181    flag = print_bt(f, flag);
182    try_signed (f, 16);
183#endif /* HAVE_INT16_T */
184#ifndef HAVE_INT32_T
185    flag = print_bt(f, flag);
186    try_signed (f, 32);
187#endif /* HAVE_INT32_T */
188#ifndef HAVE_INT64_T
189    flag = print_bt(f, flag);
190    try_signed (f, 64);
191#endif /* HAVE_INT64_T */
192
193#ifndef HAVE_UINT8_T
194    flag = print_bt(f, flag);
195    try_unsigned (f, 8);
196#endif /* HAVE_UINT8_T */
197#ifndef HAVE_UINT16_T
198    flag = print_bt(f, flag);
199    try_unsigned (f, 16);
200#endif /* HAVE_UINT16_T */
201#ifndef HAVE_UINT32_T
202    flag = print_bt(f, flag);
203    try_unsigned (f, 32);
204#endif /* HAVE_UINT32_T */
205#ifndef HAVE_UINT64_T
206    flag = print_bt(f, flag);
207    try_unsigned (f, 64);
208#endif /* HAVE_UINT64_T */
209
210#define X(S) fprintf(f, "typedef uint" #S "_t u_int" #S "_t;\n")
211#ifndef HAVE_U_INT8_T
212    flag = print_bt(f, flag);
213    X(8);
214#endif /* HAVE_U_INT8_T */
215#ifndef HAVE_U_INT16_T
216    flag = print_bt(f, flag);
217    X(16);
218#endif /* HAVE_U_INT16_T */
219#ifndef HAVE_U_INT32_T
220    flag = print_bt(f, flag);
221    X(32);
222#endif /* HAVE_U_INT32_T */
223#ifndef HAVE_U_INT64_T
224    flag = print_bt(f, flag);
225    X(64);
226#endif /* HAVE_U_INT64_T */
227
228    if(flag){
229	fprintf(f, "\n");
230	fprintf(f, "#endif /* __BIT_TYPES_DEFINED__ */\n\n");
231    }
232#ifdef KRB5
233    fprintf(f, "\n");
234#if defined(HAVE_SOCKLEN_T)
235    fprintf(f, "typedef socklen_t krb5_socklen_t;\n");
236#else
237    fprintf(f, "typedef int krb5_socklen_t;\n");
238#endif
239#if defined(HAVE_SSIZE_T)
240#ifdef HAVE_UNISTD_H
241    fprintf(f, "#include <unistd.h>\n");
242#endif
243    fprintf(f, "typedef ssize_t krb5_ssize_t;\n");
244#else
245    fprintf(f, "typedef int krb5_ssize_t;\n");
246#endif
247    fprintf(f, "\n");
248
249#if defined(_WIN32)
250    fprintf(f, "typedef SOCKET krb5_socket_t;\n");
251#else
252    fprintf(f, "typedef int krb5_socket_t;\n");
253#endif
254    fprintf(f, "\n");
255
256#endif /* KRB5 */
257
258    fprintf(f, "#ifndef HEIMDAL_DEPRECATED\n");
259    fprintf(f, "#if defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1 )))\n");
260    fprintf(f, "#define HEIMDAL_DEPRECATED __attribute__((deprecated))\n");
261    fprintf(f, "#elif defined(_MSC_VER) && (_MSC_VER>1200)\n");
262    fprintf(f, "#define HEIMDAL_DEPRECATED __declspec(deprecated)\n");
263    fprintf(f, "#else\n");
264    fprintf(f, "#define HEIMDAL_DEPRECATED\n");
265    fprintf(f, "#endif\n");
266    fprintf(f, "#endif\n");
267
268    fprintf(f, "#ifndef HEIMDAL_PRINTF_ATTRIBUTE\n");
269    fprintf(f, "#if defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1 )))\n");
270    fprintf(f, "#define HEIMDAL_PRINTF_ATTRIBUTE(x) __attribute__((format x))\n");
271    fprintf(f, "#else\n");
272    fprintf(f, "#define HEIMDAL_PRINTF_ATTRIBUTE(x)\n");
273    fprintf(f, "#endif\n");
274    fprintf(f, "#endif\n");
275
276    fprintf(f, "#ifndef HEIMDAL_NORETURN_ATTRIBUTE\n");
277    fprintf(f, "#if defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1 )))\n");
278    fprintf(f, "#define HEIMDAL_NORETURN_ATTRIBUTE __attribute__((noreturn))\n");
279    fprintf(f, "#else\n");
280    fprintf(f, "#define HEIMDAL_NORETURN_ATTRIBUTE\n");
281    fprintf(f, "#endif\n");
282    fprintf(f, "#endif\n");
283
284    fprintf(f, "#ifndef HEIMDAL_UNUSED_ATTRIBUTE\n");
285    fprintf(f, "#if defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1 )))\n");
286    fprintf(f, "#define HEIMDAL_UNUSED_ATTRIBUTE __attribute__((unused))\n");
287    fprintf(f, "#else\n");
288    fprintf(f, "#define HEIMDAL_UNUSED_ATTRIBUTE\n");
289    fprintf(f, "#endif\n");
290    fprintf(f, "#endif\n");
291
292    fprintf(f, "#endif /* %s */\n", hb);
293
294    if (f != stdout)
295	fclose(f);
296    return 0;
297}
298