1b528cefcSMark Murray /* 2b528cefcSMark Murray * Copyright (c) 1997 - 1999 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> 36b528cefcSMark Murray RCSID("$Id: bits.c,v 1.16 1999/12/02 17:04:57 joda 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 static void 44b528cefcSMark Murray my_strupr(char *s) 45b528cefcSMark Murray { 46b528cefcSMark Murray char *p = s; 47b528cefcSMark Murray 48b528cefcSMark Murray while(*p){ 49b528cefcSMark Murray if(islower((unsigned char)*p)) 50b528cefcSMark Murray *p = toupper((unsigned char)*p); 51b528cefcSMark Murray p++; 52b528cefcSMark Murray } 53b528cefcSMark Murray } 54b528cefcSMark Murray 55b528cefcSMark Murray 56b528cefcSMark Murray #define BITSIZE(TYPE) \ 57b528cefcSMark Murray { \ 58b528cefcSMark Murray int b = 0; TYPE x = 1, zero = 0; char *pre = "u_"; \ 59b528cefcSMark Murray char tmp[128], tmp2[128]; \ 60b528cefcSMark Murray while(x){ x <<= 1; b++; if(x < zero) pre=""; } \ 61b528cefcSMark Murray if(b >= len){ \ 62b528cefcSMark Murray int tabs; \ 63b528cefcSMark Murray sprintf(tmp, "%sint%d_t" , pre, len); \ 64b528cefcSMark Murray sprintf(tmp2, "typedef %s %s;", #TYPE, tmp); \ 65b528cefcSMark Murray my_strupr(tmp); \ 66b528cefcSMark Murray tabs = 5 - strlen(tmp2) / 8; \ 67b528cefcSMark Murray fprintf(f, "%s", tmp2); \ 68b528cefcSMark Murray while(tabs-- > 0) fprintf(f, "\t"); \ 69b528cefcSMark Murray fprintf(f, "/* %2d bits */\n", b); \ 70b528cefcSMark Murray return; \ 71b528cefcSMark Murray } \ 72b528cefcSMark Murray } 73b528cefcSMark Murray 74b528cefcSMark Murray static void 75b528cefcSMark Murray try_signed(FILE *f, int len) 76b528cefcSMark Murray { 77b528cefcSMark Murray BITSIZE(signed char); 78b528cefcSMark Murray BITSIZE(short); 79b528cefcSMark Murray BITSIZE(int); 80b528cefcSMark Murray BITSIZE(long); 81b528cefcSMark Murray #ifdef HAVE_LONG_LONG 82b528cefcSMark Murray BITSIZE(long long); 83b528cefcSMark Murray #endif 84b528cefcSMark Murray fprintf(f, "/* There is no %d bit type */\n", len); 85b528cefcSMark Murray } 86b528cefcSMark Murray 87b528cefcSMark Murray static void 88b528cefcSMark Murray try_unsigned(FILE *f, int len) 89b528cefcSMark Murray { 90b528cefcSMark Murray BITSIZE(unsigned char); 91b528cefcSMark Murray BITSIZE(unsigned short); 92b528cefcSMark Murray BITSIZE(unsigned int); 93b528cefcSMark Murray BITSIZE(unsigned long); 94b528cefcSMark Murray #ifdef HAVE_LONG_LONG 95b528cefcSMark Murray BITSIZE(unsigned long long); 96b528cefcSMark Murray #endif 97b528cefcSMark Murray fprintf(f, "/* There is no %d bit type */\n", len); 98b528cefcSMark Murray } 99b528cefcSMark Murray 100b528cefcSMark Murray static int 101b528cefcSMark Murray print_bt(FILE *f, int flag) 102b528cefcSMark Murray { 103b528cefcSMark Murray if(flag == 0){ 104b528cefcSMark Murray fprintf(f, "/* For compatibility with various type definitions */\n"); 105b528cefcSMark Murray fprintf(f, "#ifndef __BIT_TYPES_DEFINED__\n"); 106b528cefcSMark Murray fprintf(f, "#define __BIT_TYPES_DEFINED__\n"); 107b528cefcSMark Murray fprintf(f, "\n"); 108b528cefcSMark Murray } 109b528cefcSMark Murray return 1; 110b528cefcSMark Murray } 111b528cefcSMark Murray 112b528cefcSMark Murray int main(int argc, char **argv) 113b528cefcSMark Murray { 114b528cefcSMark Murray FILE *f; 115b528cefcSMark Murray int flag; 116b528cefcSMark Murray char *fn, *hb; 117b528cefcSMark Murray 118b528cefcSMark Murray if(argc < 2){ 119b528cefcSMark Murray fn = "bits.h"; 120b528cefcSMark Murray hb = "__BITS_H__"; 121b528cefcSMark Murray f = stdout; 122b528cefcSMark Murray } else { 123b528cefcSMark Murray char *p; 124b528cefcSMark Murray fn = argv[1]; 125b528cefcSMark Murray hb = malloc(strlen(fn) + 5); 126b528cefcSMark Murray sprintf(hb, "__%s__", fn); 127b528cefcSMark Murray for(p = hb; *p; p++){ 128b528cefcSMark Murray if(!isalnum((unsigned char)*p)) 129b528cefcSMark Murray *p = '_'; 130b528cefcSMark Murray } 131b528cefcSMark Murray f = fopen(argv[1], "w"); 132b528cefcSMark Murray } 133b528cefcSMark Murray fprintf(f, "/* %s -- this file was generated for %s by\n", fn, HOST); 134b528cefcSMark Murray fprintf(f, " %*s %s */\n\n", (int)strlen(fn), "", 135b528cefcSMark Murray "$Id: bits.c,v 1.16 1999/12/02 17:04:57 joda Exp $"); 136b528cefcSMark Murray fprintf(f, "#ifndef %s\n", hb); 137b528cefcSMark Murray fprintf(f, "#define %s\n", hb); 138b528cefcSMark Murray fprintf(f, "\n"); 139b528cefcSMark Murray #ifdef HAVE_SYS_TYPES_H 140b528cefcSMark Murray fprintf(f, "#include <sys/types.h>\n"); 141b528cefcSMark Murray #endif 142b528cefcSMark Murray #ifdef HAVE_INTTYPES_H 143b528cefcSMark Murray fprintf(f, "#include <inttypes.h>\n"); 144b528cefcSMark Murray #endif 145b528cefcSMark Murray #ifdef HAVE_SYS_BITYPES_H 146b528cefcSMark Murray fprintf(f, "#include <sys/bitypes.h>\n"); 147b528cefcSMark Murray #endif 148b528cefcSMark Murray #ifdef HAVE_BIND_BITYPES_H 149b528cefcSMark Murray fprintf(f, "#include <bind/bitypes.h>\n"); 150b528cefcSMark Murray #endif 151b528cefcSMark Murray #ifdef HAVE_NETINET_IN6_MACHTYPES_H 152b528cefcSMark Murray fprintf(f, "#include <netinet/in6_machtypes.h>\n"); 153b528cefcSMark Murray #endif 154b528cefcSMark Murray fprintf(f, "\n"); 155b528cefcSMark Murray 156b528cefcSMark Murray flag = 0; 157b528cefcSMark Murray #ifndef HAVE_INT8_T 158b528cefcSMark Murray flag = print_bt(f, flag); 159b528cefcSMark Murray try_signed (f, 8); 160b528cefcSMark Murray #endif /* HAVE_INT8_T */ 161b528cefcSMark Murray #ifndef HAVE_INT16_T 162b528cefcSMark Murray flag = print_bt(f, flag); 163b528cefcSMark Murray try_signed (f, 16); 164b528cefcSMark Murray #endif /* HAVE_INT16_T */ 165b528cefcSMark Murray #ifndef HAVE_INT32_T 166b528cefcSMark Murray flag = print_bt(f, flag); 167b528cefcSMark Murray try_signed (f, 32); 168b528cefcSMark Murray #endif /* HAVE_INT32_T */ 169b528cefcSMark Murray #if 0 170b528cefcSMark Murray #ifndef HAVE_INT64_T 171b528cefcSMark Murray flag = print_bt(f, flag); 172b528cefcSMark Murray try_signed (f, 64); 173b528cefcSMark Murray #endif /* HAVE_INT64_T */ 174b528cefcSMark Murray #endif 175b528cefcSMark Murray 176b528cefcSMark Murray #ifndef HAVE_U_INT8_T 177b528cefcSMark Murray flag = print_bt(f, flag); 178b528cefcSMark Murray try_unsigned (f, 8); 179b528cefcSMark Murray #endif /* HAVE_INT8_T */ 180b528cefcSMark Murray #ifndef HAVE_U_INT16_T 181b528cefcSMark Murray flag = print_bt(f, flag); 182b528cefcSMark Murray try_unsigned (f, 16); 183b528cefcSMark Murray #endif /* HAVE_U_INT16_T */ 184b528cefcSMark Murray #ifndef HAVE_U_INT32_T 185b528cefcSMark Murray flag = print_bt(f, flag); 186b528cefcSMark Murray try_unsigned (f, 32); 187b528cefcSMark Murray #endif /* HAVE_U_INT32_T */ 188b528cefcSMark Murray #if 0 189b528cefcSMark Murray #ifndef HAVE_U_INT64_T 190b528cefcSMark Murray flag = print_bt(f, flag); 191b528cefcSMark Murray try_unsigned (f, 64); 192b528cefcSMark Murray #endif /* HAVE_U_INT64_T */ 193b528cefcSMark Murray #endif 194b528cefcSMark Murray 195b528cefcSMark Murray if(flag){ 196b528cefcSMark Murray fprintf(f, "\n"); 197b528cefcSMark Murray fprintf(f, "#endif /* __BIT_TYPES_DEFINED__ */\n\n"); 198b528cefcSMark Murray } 199b528cefcSMark Murray fprintf(f, "#endif /* %s */\n", hb); 200b528cefcSMark Murray return 0; 201b528cefcSMark Murray } 202