+++ /dev/null
-/* -*-c-*-
- *
- * Build static universal hash tables
- *
- * (c) 2003 Straylight/Edgeware
- */
-
-/*----- Licensing notice --------------------------------------------------*
- *
- * This file is part of the mLib utilities library.
- *
- * mLib is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Library General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * mLib is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with mLib; if not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- */
-
-/*----- Header files ------------------------------------------------------*/
-
-#include "config.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "macros.h"
-#include "mdwopt.h"
-#include "quis.h"
-#include "report.h"
-#include "unihash.h"
-
-/*----- Main code ---------------------------------------------------------*/
-
-#define BSCOL 72
-
-static unsigned long getint(const char *p, unsigned long max,
- const char *what)
-{
- char *pp;
- unsigned long x = strtoul(p, &pp, 0);
- if (*pp || (max && x > max))
- die(EXIT_FAILURE, "bad %s `%s'", what, p);
- return (x);
-}
-
-static void version(FILE *fp)
-{
- pquis(fp, "$, mLib version " VERSION "\n");
-}
-
-static void usage(FILE *fp)
-{
- pquis(fp, "Usage: $ [-c] [-o FILE] [-g GUARD] [-i HEADER] [-s SYM]\n\
- [-k KEY]\n");
-}
-
-static void help(FILE *fp)
-{
- version(fp);
- putc('\n', stdout);
- usage(fp);
- fputs("\n\
-Emits a precomputed unihash_info structure for a given key.\n\
-\n\
--h, --help Show this help text.\n\
--v, --version Show the program's version number.\n\
--u, --usage Show a terse usage message.\n\
-\n\
--c, --c-source Emit a C source file rather than a header.\n\
--k, --key=KEY Use KEY as the universal hashing key.\n\
--g, --guard=GUARD Use GUARD as a multiple-inclusion guard constant.\n\
--i, --include=HEADER Include HEADER at top of C source file.\n\
--s, --symbol=SYM Name the generated table SYM.\n\
--o, --output=FILE Write the output to FILE.\n\
-", stdout);
-}
-
-int main(int argc, char *argv[])
-{
- uint32 key = 0xe07e5bd1;
- unsigned flags = 0;
- const char *sym = 0;
- const char *inc = 0;
- const char *guard = 0;
- const char *file = 0;
- FILE *fp;
- unihash_info u;
- int i, j, k;
-
-#define f_bogus 1u
-#define f_ctab 2u
-
- ego(argv[0]);
-
- for (;;) {
- static struct option opts[] = {
- { "help", 0, 0, 'h' },
- { "version", 0, 0, 'v' },
- { "usage", 0, 0, 'u' },
-
- { "output", OPTF_ARGREQ, 0, 'o' },
- { "c-source", 0, 0, 'c' },
- { "key", OPTF_ARGREQ, 0, 'k' },
- { "symbol", OPTF_ARGREQ, 0, 's' },
- { "include", OPTF_ARGREQ, 0, 'i' },
- { "guard", OPTF_ARGREQ, 0, 'g' },
-
- { 0, 0, 0, 0 }
- };
- int i = mdwopt(argc, argv, "hvu o:ck:s:i:g:", opts, 0, 0, 0);
-
- if (i < 0)
- break;
- switch (i) {
- case 'h':
- help(stdout);
- exit(0);
- case 'v':
- version(stdout);
- exit(0);
- case 'u':
- usage(stdout);
- exit(0);
-
- case 'o':
- file = optarg;
- break;
- case 'c':
- flags |= f_ctab;
- break;
- case 's':
- sym = optarg;
- break;
- case 'i':
- inc = optarg;
- break;
- case 'g':
- guard = optarg;
- break;
- case 'k':
- key = getint(optarg, 0xffffffff, "key");
- break;
-
- default:
- flags |= f_bogus;
- break;
- }
- }
- if ((flags & f_bogus) || optind != argc) {
- usage(stderr);
- exit(EXIT_FAILURE);
- }
-
- /* --- Sort stuff out --- */
-
- unihash_setkey(&u, key);
- if (!sym)
- sym = (flags & f_ctab) ? "uhi" : "UHI_INIT";
-
- /* --- Start output --- */
-
- if (!file)
- fp = stdout;
- else {
- if (!(flags & f_ctab) && !guard) {
- char *p;
- const char *q;
- if ((p = malloc(strlen(file) + 1)) == 0)
- die(EXIT_FAILURE, "not enough memory");
- guard = p;
- for (q = file; *q; p++, q++) {
- if (isalnum((unsigned char)*q))
- *p = toupper((unsigned char)*q);
- else
- *p = '_';
- }
- *p++ = 0;
- }
- if ((fp = fopen(file, "w")) == 0)
- die(EXIT_FAILURE, "couldn't write `%s': %s", file, strerror(errno));
- }
-
- /* --- Dump out the first chunk of the file --- */
-
- fprintf(fp, "\
-/* -*-c-*-\n\
- *\n\
- * Unihash table (key = %08lx) [generated]\n\
- */\n\
-\n",
- (unsigned long)key);
-
- if (flags & f_ctab) {
- if (inc)
- fprintf(fp, "#include \"%s\"\n\n", inc);
- else
- fputs("#include <mLib/unihash.h>\n\n", fp);
- fprintf(fp, "unihash_info %s = { {\n", sym);
- } else {
- int n;
- if (guard)
- fprintf(fp, "#ifndef %s\n#define %s\n\n", guard, guard);
- n = fprintf(fp, "#define %s { {", sym);
- while (n < BSCOL) {
- fputc('\t', fp);
- n = (n + 8) & ~7;
- }
- fputc('\n', fp);
- }
-
- /* --- Main output --- */
-
- for (i = 0; i < N(u.s); i++) {
- fputs(" {", fp);
- for (j = 0; j < N(u.s[i]); j++) {
- fputs(" {", fp);
- for (k = 0; k < N(u.s[i][j]); k++) {
- fprintf(fp, " 0x%08lx", (unsigned long)u.s[i][j][k]);
- if (k < N(u.s[i][j]) - 1) {
- fputc(',', fp);
- if (k % 4 == 3)
- fputs(flags & f_ctab ? "\n " : "\t\t\t\\\n ", fp);
- }
- }
- if (j < N(u.s[i]) - 1) {
- fputs(flags & f_ctab ? " },\n\n " :
- " },\t\t\t\\\n\t\t\t\t\t\t\t\t\t\\\n ", fp);
- }
- }
- if (i < N(u.s) - 1) {
- fputs(flags & f_ctab ? " } },\n\n" :
- " } },\t\t\\\n\t\t\t\t\t\t\t\t\t\\\n", fp);
- }
- }
-
- /* --- Done --- */
-
- fputs(flags & f_ctab ? " } }\n} };\n" :
- " } }\t\t\\\n} }\n", fp);
- if (!(flags & f_ctab) && guard)
- fputs("\n#endif\n", fp);
-
- return (0);
-}
-
-/*----- That's all, folks -------------------------------------------------*/
~mdw / mLib / blobdiff