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 8.1 (Berkeley) 06/06/93"; 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 int 35 main(argc, argv) 36 int argc; 37 char *argv[]; 38 { 39 DB *db; 40 int ch; 41 char *p, *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN]; 42 43 while ((ch = getopt(argc, argv, "")) != EOF) 44 switch (ch) { 45 case '?': 46 default: 47 usage(); 48 } 49 argc -= optind; 50 argv += optind; 51 52 if (argc > 1) 53 usage(); 54 55 /* If the existing db file matches the currently running kernel, exit */ 56 if (testdb()) 57 exit(0); 58 59 #define basename(cp) ((p = rindex((cp), '/')) != NULL ? p + 1 : (cp)) 60 nlistpath = argc > 0 ? argv[0] : _PATH_UNIX; 61 nlistname = basename(nlistpath); 62 63 (void)snprintf(dbtemp, sizeof(dbtemp), "%skvm_%s.tmp", 64 _PATH_VARDB, nlistname); 65 (void)snprintf(dbname, sizeof(dbname), "%skvm_%s.db", 66 _PATH_VARDB, nlistname); 67 (void)umask(0); 68 db = dbopen(dbtemp, O_CREAT | O_EXLOCK | O_TRUNC | O_RDWR, 69 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, DB_HASH, NULL); 70 if (db == NULL) 71 err(1, "%s", dbtemp); 72 create_knlist(nlistpath, db); 73 if (db->close(db)) 74 err(1, "%s", dbtemp); 75 if (rename(dbtemp, dbname)) 76 err(1, "rename %s to %s", dbtemp, dbname); 77 exit(0); 78 } 79 80 void 81 usage() 82 { 83 (void)fprintf(stderr, "usage: kvm_mkdb [file]\n"); 84 exit(1); 85 } 86