bits.c revision 1.1
1 /* $NetBSD: bits.c,v 1.1 2011/04/13 18:14:34 elric Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2002 Kungliga Tekniska Hgskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Portions Copyright (c) 2010 Apple Inc. All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * 3. Neither the name of the Institute nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 38 #ifdef HAVE_CONFIG_H 39 #include <config.h> 40 __RCSID("$NetBSD: bits.c,v 1.1 2011/04/13 18:14:34 elric Exp $"); 41 #endif 42 #include <stdio.h> 43 #include <string.h> 44 #include <stdlib.h> 45 #include <ctype.h> 46 #ifdef WIN32 47 #include <winsock2.h> 48 #include <ws2tcpip.h> 49 #endif 50 51 #define BITSIZE(TYPE) \ 52 { \ 53 int b = 0; TYPE x = 1, zero = 0; const char *pre = "u"; \ 54 char tmp[128], tmp2[128]; \ 55 while(x){ x <<= 1; b++; if(x < zero) pre=""; } \ 56 if(b >= len){ \ 57 size_t tabs; \ 58 sprintf(tmp, "%sint%d_t" , pre, len); \ 59 sprintf(tmp2, "typedef %s %s;", #TYPE, tmp); \ 60 tabs = 5 - strlen(tmp2) / 8; \ 61 fprintf(f, "%s", tmp2); \ 62 while(tabs-- > 0) fprintf(f, "\t"); \ 63 fprintf(f, "/* %2d bits */\n", b); \ 64 return; \ 65 } \ 66 } 67 68 #ifndef HAVE___ATTRIBUTE__ 69 #define __attribute__(x) 70 #endif 71 72 static void 73 try_signed(FILE *f, int len) __attribute__ ((unused)); 74 75 static void 76 try_unsigned(FILE *f, int len) __attribute__ ((unused)); 77 78 static int 79 print_bt(FILE *f, int flag) __attribute__ ((unused)); 80 81 static void 82 try_signed(FILE *f, int len) 83 { 84 BITSIZE(signed char); 85 BITSIZE(short); 86 BITSIZE(int); 87 BITSIZE(long); 88 #ifdef HAVE_LONG_LONG 89 BITSIZE(long long); 90 #endif 91 fprintf(f, "/* There is no %d bit type */\n", len); 92 } 93 94 static void 95 try_unsigned(FILE *f, int len) 96 { 97 BITSIZE(unsigned char); 98 BITSIZE(unsigned short); 99 BITSIZE(unsigned int); 100 BITSIZE(unsigned long); 101 #ifdef HAVE_LONG_LONG 102 BITSIZE(unsigned long long); 103 #endif 104 fprintf(f, "/* There is no %d bit type */\n", len); 105 } 106 107 static int 108 print_bt(FILE *f, int flag) 109 { 110 if(flag == 0){ 111 fprintf(f, "/* For compatibility with various type definitions */\n"); 112 fprintf(f, "#ifndef __BIT_TYPES_DEFINED__\n"); 113 fprintf(f, "#define __BIT_TYPES_DEFINED__\n"); 114 fprintf(f, "\n"); 115 } 116 return 1; 117 } 118 119 int main(int argc, char **argv) 120 { 121 FILE *f; 122 int flag; 123 const char *fn, *hb; 124 125 if (argc > 1 && strcmp(argv[1], "--version") == 0) { 126 printf("some version"); 127 return 0; 128 } 129 130 if(argc < 2){ 131 fn = "bits.h"; 132 hb = "__BITS_H__"; 133 f = stdout; 134 } else { 135 char *p; 136 fn = argv[1]; 137 p = malloc(strlen(fn) + 5); 138 sprintf(p, "__%s__", fn); 139 hb = p; 140 for(; *p; p++){ 141 if(!isalnum((unsigned char)*p)) 142 *p = '_'; 143 } 144 f = fopen(argv[1], "w"); 145 } 146 fprintf(f, "/* %s -- this file was generated for %s by\n", fn, HOST); 147 fprintf(f, " %*s %s */\n\n", (int)strlen(fn), "", 148 "$Id: bits.c,v 1.1 2011/04/13 18:14:34 elric Exp $"); 149 fprintf(f, "#ifndef %s\n", hb); 150 fprintf(f, "#define %s\n", hb); 151 fprintf(f, "\n"); 152 #ifdef HAVE_INTTYPES_H 153 fprintf(f, "#include <inttypes.h>\n"); 154 #endif 155 #ifdef HAVE_SYS_TYPES_H 156 fprintf(f, "#include <sys/types.h>\n"); 157 #endif 158 #ifdef HAVE_SYS_BITYPES_H 159 fprintf(f, "#include <sys/bitypes.h>\n"); 160 #endif 161 #ifdef HAVE_BIND_BITYPES_H 162 fprintf(f, "#include <bind/bitypes.h>\n"); 163 #endif 164 #ifdef HAVE_NETINET_IN6_MACHTYPES_H 165 fprintf(f, "#include <netinet/in6_machtypes.h>\n"); 166 #endif 167 #ifdef HAVE_SOCKLEN_T 168 #ifndef WIN32 169 fprintf(f, "#include <sys/socket.h>\n"); 170 #else 171 fprintf(f, "#include <winsock2.h>\n"); 172 fprintf(f, "#include <ws2tcpip.h>\n"); 173 #endif 174 #endif 175 fprintf(f, "\n"); 176 177 flag = 0; 178 #ifndef HAVE_INT8_T 179 flag = print_bt(f, flag); 180 try_signed (f, 8); 181 #endif /* HAVE_INT8_T */ 182 #ifndef HAVE_INT16_T 183 flag = print_bt(f, flag); 184 try_signed (f, 16); 185 #endif /* HAVE_INT16_T */ 186 #ifndef HAVE_INT32_T 187 flag = print_bt(f, flag); 188 try_signed (f, 32); 189 #endif /* HAVE_INT32_T */ 190 #ifndef HAVE_INT64_T 191 flag = print_bt(f, flag); 192 try_signed (f, 64); 193 #endif /* HAVE_INT64_T */ 194 195 #ifndef HAVE_UINT8_T 196 flag = print_bt(f, flag); 197 try_unsigned (f, 8); 198 #endif /* HAVE_UINT8_T */ 199 #ifndef HAVE_UINT16_T 200 flag = print_bt(f, flag); 201 try_unsigned (f, 16); 202 #endif /* HAVE_UINT16_T */ 203 #ifndef HAVE_UINT32_T 204 flag = print_bt(f, flag); 205 try_unsigned (f, 32); 206 #endif /* HAVE_UINT32_T */ 207 #ifndef HAVE_UINT64_T 208 flag = print_bt(f, flag); 209 try_unsigned (f, 64); 210 #endif /* HAVE_UINT64_T */ 211 212 #define X(S) fprintf(f, "typedef uint" #S "_t u_int" #S "_t;\n") 213 #ifndef HAVE_U_INT8_T 214 flag = print_bt(f, flag); 215 X(8); 216 #endif /* HAVE_U_INT8_T */ 217 #ifndef HAVE_U_INT16_T 218 flag = print_bt(f, flag); 219 X(16); 220 #endif /* HAVE_U_INT16_T */ 221 #ifndef HAVE_U_INT32_T 222 flag = print_bt(f, flag); 223 X(32); 224 #endif /* HAVE_U_INT32_T */ 225 #ifndef HAVE_U_INT64_T 226 flag = print_bt(f, flag); 227 X(64); 228 #endif /* HAVE_U_INT64_T */ 229 230 if(flag){ 231 fprintf(f, "\n"); 232 fprintf(f, "#endif /* __BIT_TYPES_DEFINED__ */\n\n"); 233 } 234 #ifdef KRB5 235 fprintf(f, "\n"); 236 #if defined(HAVE_SOCKLEN_T) 237 fprintf(f, "typedef socklen_t krb5_socklen_t;\n"); 238 #else 239 fprintf(f, "typedef int krb5_socklen_t;\n"); 240 #endif 241 #if defined(HAVE_SSIZE_T) 242 #ifdef HAVE_UNISTD_H 243 fprintf(f, "#include <unistd.h>\n"); 244 #endif 245 fprintf(f, "typedef ssize_t krb5_ssize_t;\n"); 246 #else 247 fprintf(f, "typedef int krb5_ssize_t;\n"); 248 #endif 249 fprintf(f, "\n"); 250 251 #if defined(_WIN32) 252 fprintf(f, "typedef SOCKET krb5_socket_t;\n"); 253 #else 254 fprintf(f, "typedef int krb5_socket_t;\n"); 255 #endif 256 fprintf(f, "\n"); 257 258 #endif /* KRB5 */ 259 260 fprintf(f, "#ifndef HEIMDAL_DEPRECATED\n"); 261 fprintf(f, "#if defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1 )))\n"); 262 fprintf(f, "#define HEIMDAL_DEPRECATED __attribute__((deprecated))\n"); 263 fprintf(f, "#elif defined(_MSC_VER) && (_MSC_VER>1200)\n"); 264 fprintf(f, "#define HEIMDAL_DEPRECATED __declspec(deprecated)\n"); 265 fprintf(f, "#else\n"); 266 fprintf(f, "#define HEIMDAL_DEPRECATED\n"); 267 fprintf(f, "#endif\n"); 268 fprintf(f, "#endif\n"); 269 270 fprintf(f, "#ifndef HEIMDAL_PRINTF_ATTRIBUTE\n"); 271 fprintf(f, "#if defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1 )))\n"); 272 fprintf(f, "#define HEIMDAL_PRINTF_ATTRIBUTE(x) __attribute__((format x))\n"); 273 fprintf(f, "#else\n"); 274 fprintf(f, "#define HEIMDAL_PRINTF_ATTRIBUTE(x)\n"); 275 fprintf(f, "#endif\n"); 276 fprintf(f, "#endif\n"); 277 278 fprintf(f, "#ifndef HEIMDAL_NORETURN_ATTRIBUTE\n"); 279 fprintf(f, "#if defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1 )))\n"); 280 fprintf(f, "#define HEIMDAL_NORETURN_ATTRIBUTE __attribute__((noreturn))\n"); 281 fprintf(f, "#else\n"); 282 fprintf(f, "#define HEIMDAL_NORETURN_ATTRIBUTE\n"); 283 fprintf(f, "#endif\n"); 284 fprintf(f, "#endif\n"); 285 286 fprintf(f, "#endif /* %s */\n", hb); 287 288 if (f != stdout) 289 fclose(f); 290 return 0; 291 } 292
Indexes created Wed Mar 04 05:31:52 UTC 2026