1 /* $NetBSD: bits.c,v 1.4 2023/06/19 21:41:41 christos 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 1.4 2023/06/19 21:41:41 christos 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[192]; \ 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 char *p = NULL; 124 const char *hb; 125 126 if (argc > 1 && strcmp(argv[1], "--version") == 0) { 127 printf("some version"); 128 return 0; 129 } 130 131 if(argc < 2){ 132 hb = "__BITS_H__"; 133 f = stdout; 134 } else { 135 p = malloc(strlen(argv[1]) + 5); 136 sprintf(p, "__%s__", argv[1]); 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, "#ifndef %s\n", hb); 145 fprintf(f, "#define %s\n", hb); 146 fprintf(f, "\n"); 147 #ifdef HAVE_INTTYPES_H 148 fprintf(f, "#include <inttypes.h>\n"); 149 #endif 150 #ifdef HAVE_SYS_TYPES_H 151 fprintf(f, "#include <sys/types.h>\n"); 152 #endif 153 #ifdef HAVE_SYS_BITYPES_H 154 fprintf(f, "#include <sys/bitypes.h>\n"); 155 #endif 156 #ifdef HAVE_BIND_BITYPES_H 157 fprintf(f, "#include <bind/bitypes.h>\n"); 158 #endif 159 #ifdef HAVE_NETINET_IN6_MACHTYPES_H 160 fprintf(f, "#include <netinet/in6_machtypes.h>\n"); 161 #endif 162 #ifdef HAVE_SOCKLEN_T 163 #ifndef WIN32 164 fprintf(f, "#include <sys/socket.h>\n"); 165 #else 166 fprintf(f, "#include <winsock2.h>\n"); 167 fprintf(f, "#include <ws2tcpip.h>\n"); 168 #endif 169 #endif 170 fprintf(f, "\n"); 171 172 flag = 0; 173 #ifndef HAVE_INT8_T 174 flag = print_bt(f, flag); 175 try_signed (f, 8); 176 #endif /* HAVE_INT8_T */ 177 #ifndef HAVE_INT16_T 178 flag = print_bt(f, flag); 179 try_signed (f, 16); 180 #endif /* HAVE_INT16_T */ 181 #ifndef HAVE_INT32_T 182 flag = print_bt(f, flag); 183 try_signed (f, 32); 184 #endif /* HAVE_INT32_T */ 185 #ifndef HAVE_INT64_T 186 flag = print_bt(f, flag); 187 try_signed (f, 64); 188 #endif /* HAVE_INT64_T */ 189 190 #ifndef HAVE_UINT8_T 191 flag = print_bt(f, flag); 192 try_unsigned (f, 8); 193 #endif /* HAVE_UINT8_T */ 194 #ifndef HAVE_UINT16_T 195 flag = print_bt(f, flag); 196 try_unsigned (f, 16); 197 #endif /* HAVE_UINT16_T */ 198 #ifndef HAVE_UINT32_T 199 flag = print_bt(f, flag); 200 try_unsigned (f, 32); 201 #endif /* HAVE_UINT32_T */ 202 #ifndef HAVE_UINT64_T 203 flag = print_bt(f, flag); 204 try_unsigned (f, 64); 205 #endif /* HAVE_UINT64_T */ 206 207 #define X(S) fprintf(f, "typedef uint" #S "_t u_int" #S "_t;\n") 208 #ifndef HAVE_U_INT8_T 209 flag = print_bt(f, flag); 210 X(8); 211 #endif /* HAVE_U_INT8_T */ 212 #ifndef HAVE_U_INT16_T 213 flag = print_bt(f, flag); 214 X(16); 215 #endif /* HAVE_U_INT16_T */ 216 #ifndef HAVE_U_INT32_T 217 flag = print_bt(f, flag); 218 X(32); 219 #endif /* HAVE_U_INT32_T */ 220 #ifndef HAVE_U_INT64_T 221 flag = print_bt(f, flag); 222 X(64); 223 #endif /* HAVE_U_INT64_T */ 224 225 if(flag){ 226 fprintf(f, "\n"); 227 fprintf(f, "#endif /* __BIT_TYPES_DEFINED__ */\n\n"); 228 } 229 #ifdef KRB5 230 fprintf(f, "\n"); 231 #if defined(HAVE_SOCKLEN_T) 232 fprintf(f, "typedef socklen_t krb5_socklen_t;\n"); 233 #else 234 fprintf(f, "typedef int krb5_socklen_t;\n"); 235 #endif 236 #if defined(HAVE_SSIZE_T) 237 #ifdef HAVE_UNISTD_H 238 fprintf(f, "#include <unistd.h>\n"); 239 #endif 240 fprintf(f, "typedef ssize_t krb5_ssize_t;\n"); 241 #else 242 fprintf(f, "typedef int krb5_ssize_t;\n"); 243 #endif 244 fprintf(f, "\n"); 245 246 #if defined(_WIN32) 247 fprintf(f, "typedef SOCKET krb5_socket_t;\n"); 248 #else 249 fprintf(f, "typedef int krb5_socket_t;\n"); 250 #endif 251 fprintf(f, "\n"); 252 253 #endif /* KRB5 */ 254 255 fprintf(f, "#if !defined(__has_extension)\n"); 256 fprintf(f, "#define __has_extension(x) 0\n"); 257 fprintf(f, "#endif\n\n"); 258 259 fprintf(f, "#ifndef KRB5TYPES_REQUIRE_GNUC\n"); 260 fprintf(f, "#define KRB5TYPES_REQUIRE_GNUC(m,n,p) \\\n"); 261 fprintf(f, " (((__GNUC__ * 10000) + (__GNUC_MINOR__ * 100) + __GNUC_PATCHLEVEL__) >= \\\n"); 262 fprintf(f, " (((m) * 10000) + ((n) * 100) + (p)))\n"); 263 fprintf(f, "#endif\n\n"); 264 265 fprintf(f, "#ifndef HEIMDAL_DEPRECATED\n"); 266 fprintf(f, "#if __has_extension(deprecated) || KRB5TYPES_REQUIRE_GNUC(3,1,0)\n"); 267 fprintf(f, "#define HEIMDAL_DEPRECATED __attribute__ ((__deprecated__))\n"); 268 fprintf(f, "#elif defined(_MSC_VER) && (_MSC_VER>1200)\n"); 269 fprintf(f, "#define HEIMDAL_DEPRECATED __declspec(deprecated)\n"); 270 fprintf(f, "#else\n"); 271 fprintf(f, "#define HEIMDAL_DEPRECATED\n"); 272 fprintf(f, "#endif\n"); 273 fprintf(f, "#endif\n\n"); 274 275 fprintf(f, "#ifndef HEIMDAL_PRINTF_ATTRIBUTE\n"); 276 fprintf(f, "#if __has_extension(format) || KRB5TYPES_REQUIRE_GNUC(3,1,0)\n"); 277 fprintf(f, "#define HEIMDAL_PRINTF_ATTRIBUTE(x) __attribute__ ((__format__ x))\n"); 278 fprintf(f, "#else\n"); 279 fprintf(f, "#define HEIMDAL_PRINTF_ATTRIBUTE(x)\n"); 280 fprintf(f, "#endif\n"); 281 fprintf(f, "#endif\n\n"); 282 283 fprintf(f, "#ifndef HEIMDAL_NORETURN_ATTRIBUTE\n"); 284 fprintf(f, "#if __has_extension(noreturn) || KRB5TYPES_REQUIRE_GNUC(3,1,0)\n"); 285 fprintf(f, "#define HEIMDAL_NORETURN_ATTRIBUTE __attribute__ ((__noreturn__))\n"); 286 fprintf(f, "#else\n"); 287 fprintf(f, "#define HEIMDAL_NORETURN_ATTRIBUTE\n"); 288 fprintf(f, "#endif\n"); 289 fprintf(f, "#endif\n\n"); 290 291 fprintf(f, "#ifndef HEIMDAL_UNUSED_ATTRIBUTE\n"); 292 fprintf(f, "#if __has_extension(unused) || KRB5TYPES_REQUIRE_GNUC(3,1,0)\n"); 293 fprintf(f, "#define HEIMDAL_UNUSED_ATTRIBUTE __attribute__ ((__unused__))\n"); 294 fprintf(f, "#else\n"); 295 fprintf(f, "#define HEIMDAL_UNUSED_ATTRIBUTE\n"); 296 fprintf(f, "#endif\n"); 297 fprintf(f, "#endif\n\n"); 298 299 fprintf(f, "#ifndef HEIMDAL_WARN_UNUSED_RESULT_ATTRIBUTE\n"); 300 fprintf(f, "#if __has_extension(warn_unused_result) || KRB5TYPES_REQUIRE_GNUC(3,3,0)\n"); 301 fprintf(f, "#define HEIMDAL_WARN_UNUSED_RESULT_ATTRIBUTE __attribute__ ((__warn_unused_result__))\n"); 302 fprintf(f, "#else\n"); 303 fprintf(f, "#define HEIMDAL_WARN_UNUSED_RESULT_ATTRIBUTE\n"); 304 fprintf(f, "#endif\n"); 305 fprintf(f, "#endif\n\n"); 306 307 fprintf(f, "#endif /* %s */\n", hb); 308 309 if (f != stdout) 310 fclose(f); 311 return 0; 312 } 313
Indexes created Sat Feb 28 05:31:39 UTC 2026