1b528cefcSMark Murray /* 25e9cd1aeSAssar Westerlund * Copyright (c) 1997 - 2000 Kungliga Tekniska H�gskolan 3b528cefcSMark Murray * (Royal Institute of Technology, Stockholm, Sweden). 4b528cefcSMark Murray * All rights reserved. 5b528cefcSMark Murray * 6b528cefcSMark Murray * Redistribution and use in source and binary forms, with or without 7b528cefcSMark Murray * modification, are permitted provided that the following conditions 8b528cefcSMark Murray * are met: 9b528cefcSMark Murray * 10b528cefcSMark Murray * 1. Redistributions of source code must retain the above copyright 11b528cefcSMark Murray * notice, this list of conditions and the following disclaimer. 12b528cefcSMark Murray * 13b528cefcSMark Murray * 2. Redistributions in binary form must reproduce the above copyright 14b528cefcSMark Murray * notice, this list of conditions and the following disclaimer in the 15b528cefcSMark Murray * documentation and/or other materials provided with the distribution. 16b528cefcSMark Murray * 17b528cefcSMark Murray * 3. Neither the name of the Institute nor the names of its contributors 18b528cefcSMark Murray * may be used to endorse or promote products derived from this software 19b528cefcSMark Murray * without specific prior written permission. 20b528cefcSMark Murray * 21b528cefcSMark Murray * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22b528cefcSMark Murray * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23b528cefcSMark Murray * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24b528cefcSMark Murray * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25b528cefcSMark Murray * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26b528cefcSMark Murray * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27b528cefcSMark Murray * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28b528cefcSMark Murray * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29b528cefcSMark Murray * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30b528cefcSMark Murray * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31b528cefcSMark Murray * SUCH DAMAGE. 32b528cefcSMark Murray */ 33b528cefcSMark Murray 34b528cefcSMark Murray #ifdef HAVE_CONFIG_H 35b528cefcSMark Murray #include <config.h> 365e9cd1aeSAssar Westerlund RCSID("$Id: bits.c,v 1.18 2000/08/27 05:42:46 assar Exp $"); 37b528cefcSMark Murray #endif 38b528cefcSMark Murray #include <stdio.h> 39b528cefcSMark Murray #include <string.h> 40b528cefcSMark Murray #include <stdlib.h> 41b528cefcSMark Murray #include <ctype.h> 42b528cefcSMark Murray 43b528cefcSMark Murray #define BITSIZE(TYPE) \ 44b528cefcSMark Murray { \ 455e9cd1aeSAssar Westerlund int b = 0; TYPE x = 1, zero = 0; char *pre = "u"; \ 46b528cefcSMark Murray char tmp[128], tmp2[128]; \ 47b528cefcSMark Murray while(x){ x <<= 1; b++; if(x < zero) pre=""; } \ 48b528cefcSMark Murray if(b >= len){ \ 49b528cefcSMark Murray int tabs; \ 50b528cefcSMark Murray sprintf(tmp, "%sint%d_t" , pre, len); \ 51b528cefcSMark Murray sprintf(tmp2, "typedef %s %s;", #TYPE, tmp); \ 52b528cefcSMark Murray tabs = 5 - strlen(tmp2) / 8; \ 53b528cefcSMark Murray fprintf(f, "%s", tmp2); \ 54b528cefcSMark Murray while(tabs-- > 0) fprintf(f, "\t"); \ 55b528cefcSMark Murray fprintf(f, "/* %2d bits */\n", b); \ 56b528cefcSMark Murray return; \ 57b528cefcSMark Murray } \ 58b528cefcSMark Murray } 59b528cefcSMark Murray 605e9cd1aeSAssar Westerlund #ifndef HAVE___ATTRIBUTE__ 615e9cd1aeSAssar Westerlund #define __attribute__(x) 625e9cd1aeSAssar Westerlund #endif 635e9cd1aeSAssar Westerlund 645e9cd1aeSAssar Westerlund static void 655e9cd1aeSAssar Westerlund try_signed(FILE *f, int len) __attribute__ ((unused)); 665e9cd1aeSAssar Westerlund 675e9cd1aeSAssar Westerlund static void 685e9cd1aeSAssar Westerlund try_unsigned(FILE *f, int len) __attribute__ ((unused)); 695e9cd1aeSAssar Westerlund 705e9cd1aeSAssar Westerlund static int 715e9cd1aeSAssar Westerlund print_bt(FILE *f, int flag) __attribute__ ((unused)); 725e9cd1aeSAssar Westerlund 73b528cefcSMark Murray static void 74b528cefcSMark Murray try_signed(FILE *f, int len) 75b528cefcSMark Murray { 76b528cefcSMark Murray BITSIZE(signed char); 77b528cefcSMark Murray BITSIZE(short); 78b528cefcSMark Murray BITSIZE(int); 79b528cefcSMark Murray BITSIZE(long); 80b528cefcSMark Murray #ifdef HAVE_LONG_LONG 81b528cefcSMark Murray BITSIZE(long long); 82b528cefcSMark Murray #endif 83b528cefcSMark Murray fprintf(f, "/* There is no %d bit type */\n", len); 84b528cefcSMark Murray } 85b528cefcSMark Murray 86b528cefcSMark Murray static void 87b528cefcSMark Murray try_unsigned(FILE *f, int len) 88b528cefcSMark Murray { 89b528cefcSMark Murray BITSIZE(unsigned char); 90b528cefcSMark Murray BITSIZE(unsigned short); 91b528cefcSMark Murray BITSIZE(unsigned int); 92b528cefcSMark Murray BITSIZE(unsigned long); 93b528cefcSMark Murray #ifdef HAVE_LONG_LONG 94b528cefcSMark Murray BITSIZE(unsigned long long); 95b528cefcSMark Murray #endif 96b528cefcSMark Murray fprintf(f, "/* There is no %d bit type */\n", len); 97b528cefcSMark Murray } 98b528cefcSMark Murray 99b528cefcSMark Murray static int 100b528cefcSMark Murray print_bt(FILE *f, int flag) 101b528cefcSMark Murray { 102b528cefcSMark Murray if(flag == 0){ 103b528cefcSMark Murray fprintf(f, "/* For compatibility with various type definitions */\n"); 104b528cefcSMark Murray fprintf(f, "#ifndef __BIT_TYPES_DEFINED__\n"); 105b528cefcSMark Murray fprintf(f, "#define __BIT_TYPES_DEFINED__\n"); 106b528cefcSMark Murray fprintf(f, "\n"); 107b528cefcSMark Murray } 108b528cefcSMark Murray return 1; 109b528cefcSMark Murray } 110b528cefcSMark Murray 111b528cefcSMark Murray int main(int argc, char **argv) 112b528cefcSMark Murray { 113b528cefcSMark Murray FILE *f; 114b528cefcSMark Murray int flag; 115b528cefcSMark Murray char *fn, *hb; 116b528cefcSMark Murray 117b528cefcSMark Murray if(argc < 2){ 118b528cefcSMark Murray fn = "bits.h"; 119b528cefcSMark Murray hb = "__BITS_H__"; 120b528cefcSMark Murray f = stdout; 121b528cefcSMark Murray } else { 122b528cefcSMark Murray char *p; 123b528cefcSMark Murray fn = argv[1]; 124b528cefcSMark Murray hb = malloc(strlen(fn) + 5); 125b528cefcSMark Murray sprintf(hb, "__%s__", fn); 126b528cefcSMark Murray for(p = hb; *p; p++){ 127b528cefcSMark Murray if(!isalnum((unsigned char)*p)) 128b528cefcSMark Murray *p = '_'; 129b528cefcSMark Murray } 130b528cefcSMark Murray f = fopen(argv[1], "w"); 131b528cefcSMark Murray } 132b528cefcSMark Murray fprintf(f, "/* %s -- this file was generated for %s by\n", fn, HOST); 133b528cefcSMark Murray fprintf(f, " %*s %s */\n\n", (int)strlen(fn), "", 1345e9cd1aeSAssar Westerlund "$Id: bits.c,v 1.18 2000/08/27 05:42:46 assar Exp $"); 135b528cefcSMark Murray fprintf(f, "#ifndef %s\n", hb); 136b528cefcSMark Murray fprintf(f, "#define %s\n", hb); 137b528cefcSMark Murray fprintf(f, "\n"); 138b528cefcSMark Murray #ifdef HAVE_SYS_TYPES_H 139b528cefcSMark Murray fprintf(f, "#include <sys/types.h>\n"); 140b528cefcSMark Murray #endif 141b528cefcSMark Murray #ifdef HAVE_INTTYPES_H 142b528cefcSMark Murray fprintf(f, "#include <inttypes.h>\n"); 143b528cefcSMark Murray #endif 144b528cefcSMark Murray #ifdef HAVE_SYS_BITYPES_H 145b528cefcSMark Murray fprintf(f, "#include <sys/bitypes.h>\n"); 146b528cefcSMark Murray #endif 147b528cefcSMark Murray #ifdef HAVE_BIND_BITYPES_H 148b528cefcSMark Murray fprintf(f, "#include <bind/bitypes.h>\n"); 149b528cefcSMark Murray #endif 150b528cefcSMark Murray #ifdef HAVE_NETINET_IN6_MACHTYPES_H 151b528cefcSMark Murray fprintf(f, "#include <netinet/in6_machtypes.h>\n"); 152b528cefcSMark Murray #endif 153b528cefcSMark Murray fprintf(f, "\n"); 154b528cefcSMark Murray 155b528cefcSMark Murray flag = 0; 156b528cefcSMark Murray #ifndef HAVE_INT8_T 157b528cefcSMark Murray flag = print_bt(f, flag); 158b528cefcSMark Murray try_signed (f, 8); 159b528cefcSMark Murray #endif /* HAVE_INT8_T */ 160b528cefcSMark Murray #ifndef HAVE_INT16_T 161b528cefcSMark Murray flag = print_bt(f, flag); 162b528cefcSMark Murray try_signed (f, 16); 163b528cefcSMark Murray #endif /* HAVE_INT16_T */ 164b528cefcSMark Murray #ifndef HAVE_INT32_T 165b528cefcSMark Murray flag = print_bt(f, flag); 166b528cefcSMark Murray try_signed (f, 32); 167b528cefcSMark Murray #endif /* HAVE_INT32_T */ 168b528cefcSMark Murray #if 0 169b528cefcSMark Murray #ifndef HAVE_INT64_T 170b528cefcSMark Murray flag = print_bt(f, flag); 171b528cefcSMark Murray try_signed (f, 64); 172b528cefcSMark Murray #endif /* HAVE_INT64_T */ 173b528cefcSMark Murray #endif 174b528cefcSMark Murray 1755e9cd1aeSAssar Westerlund #ifndef HAVE_UINT8_T 176b528cefcSMark Murray flag = print_bt(f, flag); 177b528cefcSMark Murray try_unsigned (f, 8); 1785e9cd1aeSAssar Westerlund #endif /* HAVE_UINT8_T */ 1795e9cd1aeSAssar Westerlund #ifndef HAVE_UINT16_T 180b528cefcSMark Murray flag = print_bt(f, flag); 181b528cefcSMark Murray try_unsigned (f, 16); 1825e9cd1aeSAssar Westerlund #endif /* HAVE_UINT16_T */ 1835e9cd1aeSAssar Westerlund #ifndef HAVE_UINT32_T 1845e9cd1aeSAssar Westerlund flag = print_bt(f, flag); 1855e9cd1aeSAssar Westerlund try_unsigned (f, 32); 1865e9cd1aeSAssar Westerlund #endif /* HAVE_UINT32_T */ 1875e9cd1aeSAssar Westerlund #if 0 1885e9cd1aeSAssar Westerlund #ifndef HAVE_UINT64_T 1895e9cd1aeSAssar Westerlund flag = print_bt(f, flag); 1905e9cd1aeSAssar Westerlund try_unsigned (f, 64); 1915e9cd1aeSAssar Westerlund #endif /* HAVE_UINT64_T */ 1925e9cd1aeSAssar Westerlund #endif 1935e9cd1aeSAssar Westerlund 1945e9cd1aeSAssar Westerlund #define X(S) fprintf(f, "typedef uint" #S "_t u_int" #S "_t;\n") 1955e9cd1aeSAssar Westerlund #ifndef HAVE_U_INT8_T 1965e9cd1aeSAssar Westerlund flag = print_bt(f, flag); 1975e9cd1aeSAssar Westerlund X(8); 1985e9cd1aeSAssar Westerlund #endif /* HAVE_U_INT8_T */ 1995e9cd1aeSAssar Westerlund #ifndef HAVE_U_INT16_T 2005e9cd1aeSAssar Westerlund flag = print_bt(f, flag); 2015e9cd1aeSAssar Westerlund X(16); 202b528cefcSMark Murray #endif /* HAVE_U_INT16_T */ 203b528cefcSMark Murray #ifndef HAVE_U_INT32_T 204b528cefcSMark Murray flag = print_bt(f, flag); 2055e9cd1aeSAssar Westerlund X(32); 206b528cefcSMark Murray #endif /* HAVE_U_INT32_T */ 207b528cefcSMark Murray #if 0 208b528cefcSMark Murray #ifndef HAVE_U_INT64_T 209b528cefcSMark Murray flag = print_bt(f, flag); 2105e9cd1aeSAssar Westerlund X(64); 211b528cefcSMark Murray #endif /* HAVE_U_INT64_T */ 212b528cefcSMark Murray #endif 213b528cefcSMark Murray 214b528cefcSMark Murray if(flag){ 215b528cefcSMark Murray fprintf(f, "\n"); 216b528cefcSMark Murray fprintf(f, "#endif /* __BIT_TYPES_DEFINED__ */\n\n"); 217b528cefcSMark Murray } 218b528cefcSMark Murray fprintf(f, "#endif /* %s */\n", hb); 219b528cefcSMark Murray return 0; 220b528cefcSMark Murray } 221