/* $NetBSD: bits.c,v 1.6 2003/09/13 03:50:12 jlam Exp $ */ /* * Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "nbcompat/config.h" #if 0 __RCSID("$NetBSD: bits.c,v 1.6 2003/09/13 03:50:12 jlam Exp $"); #endif #include #include #include #include #define BITSIZE(TYPE) \ { \ int b = 0; TYPE x = 1, zero = 0; char *pre = "u"; \ char tmp[128], tmp2[128]; \ while(x){ x <<= 1; b++; if(x < zero) pre=""; } \ if(b >= len){ \ int tabs; \ sprintf(tmp, "%sint%d_t" , pre, len); \ sprintf(tmp2, "typedef %s %s;", #TYPE, tmp); \ tabs = 5 - strlen(tmp2) / 8; \ fprintf(f, "%s", tmp2); \ while(tabs-- > 0) fprintf(f, "\t"); \ fprintf(f, "/* %2d bits */\n", b); \ return; \ } \ } /* * work around rpl_malloc from nbcompat_config.h, since we don't need the * replacement malloc() here */ #if ! HAVE_MALLOC #undef malloc void *malloc(); #endif #ifndef HAVE___ATTRIBUTE__ #define __attribute__(x) #endif static void try_signed(FILE *f, int len) __attribute__ ((unused)); static void try_unsigned(FILE *f, int len) __attribute__ ((unused)); static int print_bt(FILE *f, int flag) __attribute__ ((unused)); static void try_signed(FILE *f, int len) { BITSIZE(signed char); BITSIZE(short); BITSIZE(int); BITSIZE(long); #if HAVE_LONG_LONG BITSIZE(long long); #endif fprintf(f, "/* There is no %d bit type */\n", len); } static void try_unsigned(FILE *f, int len) { BITSIZE(unsigned char); BITSIZE(unsigned short); BITSIZE(unsigned int); BITSIZE(unsigned long); #if HAVE_LONG_LONG BITSIZE(unsigned long long); #endif fprintf(f, "/* There is no %d bit type */\n", len); } int main(int argc, char **argv) { FILE *f; char *fn, *hb; if(argc < 2){ fn = "bits.h"; hb = "__BITS_H__"; f = stdout; } else { char *p; fn = argv[1]; hb = malloc(strlen(fn) + 5); sprintf(hb, "__%s__", fn); for(p = hb; *p; p++){ if(!isalnum((unsigned char)*p)) *p = '_'; } f = fopen(argv[1], "w"); } fprintf(f, "/* %s -- this file was generated by\n", fn); fprintf(f, " %*s %s */\n\n", (int)strlen(fn), "", "$Id: bits.c,v 1.6 2003/09/13 03:50:12 jlam Exp $"); fprintf(f, "#ifndef %s\n", hb); fprintf(f, "#define %s\n", hb); fprintf(f, "\n"); #if HAVE_SYS_TYPES_H fprintf(f, "#include \n"); #endif #if HAVE_INTTYPES_H fprintf(f, "#include \n"); #endif #if HAVE_SYS_BITYPES_H fprintf(f, "#include \n"); #endif #if HAVE_BIND_BITYPES_H fprintf(f, "#include \n"); #endif #if HAVE_NETINET_IN6_MACHTYPES_H fprintf(f, "#include \n"); #endif fprintf(f, "\n"); #ifndef HAVE_INT8_T try_signed (f, 8); #endif /* HAVE_INT8_T */ #ifndef HAVE_INT16_T try_signed (f, 16); #endif /* HAVE_INT16_T */ #ifndef HAVE_INT32_T try_signed (f, 32); #endif /* HAVE_INT32_T */ #ifndef HAVE_INT64_T try_signed (f, 64); #endif /* HAVE_INT64_T */ #ifndef HAVE_UINT8_T try_unsigned (f, 8); #endif /* HAVE_UINT8_T */ #ifndef HAVE_UINT16_T try_unsigned (f, 16); #endif /* HAVE_UINT16_T */ #ifndef HAVE_UINT32_T try_unsigned (f, 32); #endif /* HAVE_UINT32_T */ #ifndef HAVE_UINT64_T try_unsigned (f, 64); #endif /* HAVE_UINT64_T */ #define X(S) fprintf(f, "typedef uint" #S "_t u_int" #S "_t;\n") #ifndef HAVE_U_INT8_T X(8); #endif /* HAVE_U_INT8_T */ #ifndef HAVE_U_INT16_T X(16); #endif /* HAVE_U_INT16_T */ #ifndef HAVE_U_INT32_T X(32); #endif /* HAVE_U_INT32_T */ #ifndef HAVE_U_INT64_T X(64); #endif /* HAVE_U_INT64_T */ fprintf(f, "#endif /* %s */\n", hb); return 0; }