1 /*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char copyright[] = 10 "@(#) Copyright (c) 1990, 1993\n\ 11 The Regents of the University of California. All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)kvm_mkdb.c 8.2 (Berkeley) 04/27/95"; 16 #endif /* not lint */ 17 18 #include <sys/param.h> 19 #include <sys/stat.h> 20 21 #include <db.h> 22 #include <err.h> 23 #include <errno.h> 24 #include <fcntl.h> 25 #include <paths.h> 26 #include <stdio.h> 27 #include <stdlib.h> 28 #include <string.h> 29 30 #include "extern.h" 31 32 static void usage __P((void)); 33 34 HASHINFO openinfo = { 35 4096, /* bsize */ 36 128, /* ffactor */ 37 1024, /* nelem */ 38 2048 * 1024, /* cachesize */ 39 NULL, /* hash() */ 40 0 /* lorder */ 41 }; 42 43 int 44 main(argc, argv) 45 int argc; 46 char *argv[]; 47 { 48 DB *db; 49 int ch; 50 char *p, *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN]; 51 52 while ((ch = getopt(argc, argv, "")) != EOF) 53 switch (ch) { 54 case '?': 55 default: 56 usage(); 57 } 58 argc -= optind; 59 argv += optind; 60 61 if (argc > 1) 62 usage(); 63 64 /* If the existing db file matches the currently running kernel, exit */ 65 if (testdb()) 66 exit(0); 67 68 #define basename(cp) ((p = rindex((cp), '/')) != NULL ? p + 1 : (cp)) 69 nlistpath = argc > 0 ? argv[0] : _PATH_UNIX; 70 nlistname = basename(nlistpath); 71 72 (void)snprintf(dbtemp, sizeof(dbtemp), "%skvm_%s.tmp", 73 _PATH_VARDB, nlistname); 74 (void)snprintf(dbname, sizeof(dbname), "%skvm_%s.db", 75 _PATH_VARDB, nlistname); 76 (void)umask(0); 77 db = dbopen(dbtemp, O_CREAT | O_EXLOCK | O_TRUNC | O_RDWR, 78 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, DB_HASH, &openinfo); 79 if (db == NULL) 80 err(1, "%s", dbtemp); 81 create_knlist(nlistpath, db); 82 if (db->close(db)) 83 err(1, "%s", dbtemp); 84 if (rename(dbtemp, dbname)) 85 err(1, "rename %s to %s", dbtemp, dbname); 86 exit(0); 87 } 88 89 void 90 usage() 91 { 92 (void)fprintf(stderr, "usage: kvm_mkdb [file]\n"); 93 exit(1); 94 } 95