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- /*
- * $Id: mk-amd-map.c,v 5.2 90/06/23 22:20:10 jsp Rel $
- *
- * Copyright (c) 1990 Jan-Simon Pendry
- * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Jan-Simon Pendry at Imperial College, London.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Imperial College of Science, Technology and Medicine, London, UK.
- * The names of the College and University may not be used to endorse
- * or promote products derived from this software without specific
- * prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- /*
- * Convert a file map into an ndbm map
- */
-
- #ifndef lint
- char copyright[] = "\
- @(#)Copyright (c) 1990 Jan-Simon Pendry\n\
- @(#)Copyright (c) 1990 Imperial College of Science, Technology & Medicine\n\
- @(#)Copyright (c) 1990 The Regents of the University of California.\n\
- @(#)All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char rcsid[] = "$Id: mk-amd-map.c,v 5.2 90/06/23 22:20:10 jsp Rel $";
- static char sccsid[] = "%W% (Berkeley) %G%";
- #endif /* not lint */
-
- #include "am.h"
-
- #ifdef OS_HAS_GDBM
- #define HAS_DATABASE
- #include "gdbm.h"
- #endif /* OS_HAS_GDBM */
-
- #ifndef HAS_DATABASE
- #ifdef OS_HAS_NDBM
- #define HAS_DATABASE
- #define USE_NDBM
- #include <ndbm.h>
-
- #define create_database(name) dbm_open(name, O_RDWR|O_CREAT, 0444)
-
- static int store_data(db, k, v)
- voidp db;
- char *k, *v;
- {
- datum key, val;
-
- key.dptr = k; val.dptr = v;
- key.dsize = strlen(k) + 1;
- val.dsize = strlen(v) + 1;
- return dbm_store((DBM *) db, key, val, DBM_INSERT);
- }
-
- #endif /* OS_HAS_NDBM */
- #endif /* !OS_HAS_DATABASE */
-
- #ifdef HAS_DATABASE
- #include <fcntl.h>
- #include <ctype.h>
-
- static int read_line(buf, size, fp)
- char *buf;
- int size;
- FILE *fp;
- {
- int done = 0;
-
- do {
- while (fgets(buf, size, fp)) {
- int len = strlen(buf);
- done += len;
- if (len > 1 && buf[len-2] == '\\' &&
- buf[len-1] == '\n') {
- int ch;
- buf += len - 2;
- size -= len - 2;
- /*
- * Skip leading white space on next line
- */
- while ((ch = getc(fp)) != EOF &&
- isascii(ch) && isspace(ch))
- ;
- (void) ungetc(ch, fp);
- } else {
- return done;
- }
- }
- } while (size > 0 && !feof(fp));
-
- return done;
- }
-
- /*
- * Read through a map
- */
- static int read_file(fp, map, db)
- FILE *fp;
- char *map;
- voidp db;
- {
- char key_val[2048];
- int chuck = 0;
- int line_no = 0;
- int errs = 0;
-
- while (read_line(key_val, sizeof(key_val), fp)) {
- char *kp;
- char *cp;
- char *hash;
- int len = strlen(key_val);
- line_no++;
-
- /*
- * Make sure we got the whole line
- */
- if (key_val[len-1] != '\n') {
- fprintf(stderr, "line %d in \"%s\" is too long", line_no, map);
- chuck = 1;
- } else {
- key_val[len-1] = '\0';
- }
-
- /*
- * Strip comments
- */
- hash = strchr(key_val, '#');
- if (hash)
- *hash = '\0';
-
- /*
- * Find start of key
- */
- for (kp = key_val; *kp && isascii(*kp) && isspace(*kp); kp++)
- ;
-
- /*
- * Ignore blank lines
- */
- if (!*kp)
- goto again;
-
- /*
- * Find end of key
- */
- for (cp = kp; *cp&&(!isascii(*cp)||!isspace(*cp)); cp++)
- ;
-
- /*
- * Check whether key matches, or whether
- * the entry is a wildcard entry.
- */
- if (*cp)
- *cp++ = '\0';
- while (*cp && isascii(*cp) && isspace(*cp))
- cp++;
- if (*kp == '+') {
- fprintf(stderr, "Can't interpolate %s\n", kp);
- errs++;
- } else if (*cp) {
- #ifdef DEBUG
- printf("%s\t%s\n", kp, cp);
- #endif /* DEBUG */
- if (store_data(db, kp, cp) < 0) {
- fprintf(stderr, "Could store %s -> %s\n", kp, cp);
- errs++;
- }
- } else {
- fprintf(stderr, "%s: line %d has no value field", map, line_no);
- errs++;
- }
-
- again:
- /*
- * If the last read didn't get a whole line then
- * throw away the remainder before continuing...
- */
- if (chuck) {
- while (fgets(key_val, sizeof(key_val), fp) &&
- !strchr(key_val, '\n'))
- ;
- chuck = 0;
- }
- }
- return errs;
- }
-
- static int remove(f)
- char *f;
- {
- if (unlink(f) < 0 && errno != ENOENT)
- return -1;
- return 0;
- }
-
- main(argc, argv)
- int argc;
- char *argv[];
- {
- FILE *mapf;
- char *map;
- int rc = 0;
- DBM *mapd;
- char *maptmp = "dbmXXXXXX";
- char maptpag[16], maptdir[16];
- char *mappag, *mapdir;
- int len;
- char *sl;
-
- if (argc != 2) {
- fputs("Usage: mk-amd-map file-map\n", stderr);
- exit(1);
- }
-
- map = argv[1];
- sl = strrchr(map, '/');
- if (sl) {
- *sl = '\0';
- if (chdir(map) < 0) {
- fputs("Can't chdir to ", stderr);
- perror(map);
- exit(1);
- }
- map = sl + 1;
- }
- #ifdef USE_NDBM
- len = strlen(map);
- mappag = (char *) malloc(len + 5);
- mapdir = (char *) malloc(len + 5);
- if (!mappag || !mapdir) {
- perror("malloc");
- exit(1);
- }
- mktemp(maptmp);
- sprintf(maptpag, "%s.pag", maptmp);
- sprintf(maptdir, "%s.dir", maptmp);
- if (remove(maptpag) < 0 || remove(maptdir) < 0) {
- fprintf(stderr, "Can't remove existing temporary files; %s and", maptpag);
- perror(maptdir);
- exit(1);
- }
- #endif /* USE_NDBM */
- mapf = fopen(map, "r");
- if (mapf)
- mapd = create_database(maptmp);
- else
- mapd = 0;
- #ifndef DEBUG
- signal(SIGINT, SIG_IGN);
- #endif /* DEBUG */
- if (mapd) {
- int error = read_file(mapf, map, mapd);
- (void) fclose(mapf);
- if (error) {
- fprintf(stderr, "Error creating ndbm map for %s\n", map);
- rc = 1;
- }
- #ifdef USE_NDBM
- sprintf(mappag, "%s.pag", map);
- sprintf(mapdir, "%s.dir", map);
- if (rename(maptpag, mappag) < 0) {
- fprintf(stderr, "Couldn't rename %s to ", maptpag);
- perror(mappag);
- /* Throw away the temporary map */
- unlink(maptpag);
- unlink(maptdir);
- rc = 1;
- } else if (rename(maptdir, mapdir) < 0) {
- fprintf(stderr, "Couldn't rename %s to ", maptdir);
- perror(mapdir);
- /* Put the .pag file back */
- rename(mappag, maptpag);
- /* Throw away remaining part of original map */
- unlink(mapdir);
- fprintf(stderr, "WARNING: existing map \"%s.{dir,pag}\" destroyed\n", map);
- rc = 1;
- }
- #endif /* USE_NDBM */
- } else {
- #ifdef USE_NDBM
- fprintf(stderr, "Can't open \"%s.{dir,pag}\" for ", map);
- #endif /* USE_NDBM */
- perror("writing");
- rc = 1;
- }
- exit(rc);
- }
- #else
- main()
- {
- fputs("This system does not support hashed database files\n", stderr);
- exit(0);
- }
- #endif /* HAS_DATABASE */
-