1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 char copyright[] = 10 "@(#) Copyright (c) 1990 The Regents of the University of California.\n\ 11 All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)kvm_mkdb.c 5.16 (Berkeley) 06/02/92"; 16 #endif /* not lint */ 17 18 #include <sys/param.h> 19 #include <sys/stat.h> 20 #include <fcntl.h> 21 #include <db.h> 22 #include <errno.h> 23 #include <stdio.h> 24 #include <stdlib.h> 25 #include <string.h> 26 #include <paths.h> 27 28 #include "extern.h" 29 30 static void usage __P(()); 31 32 int 33 main(argc, argv) 34 int argc; 35 char **argv; 36 { 37 DB *db; 38 int ch; 39 char *p, *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN]; 40 41 while ((ch = getopt(argc, argv, "")) != EOF) 42 switch((char)ch) { 43 case '?': 44 default: 45 usage(); 46 } 47 argc -= optind; 48 argv += optind; 49 50 if (argc > 1) 51 usage(); 52 53 /* If the existing db file matches the currently running kernel, exit */ 54 if (testdb()) 55 exit(0); 56 57 #define basename(cp) ((p = rindex((cp), '/')) != NULL ? p + 1 : (cp)) 58 nlistpath = argc > 0 ? argv[0] : _PATH_UNIX; 59 nlistname = basename(nlistpath); 60 61 (void)snprintf(dbtemp, sizeof(dbtemp), "%skvm_%s.tmp", 62 _PATH_VARDB, nlistname); 63 (void)snprintf(dbname, sizeof(dbname), "%skvm_%s.db", 64 _PATH_VARDB, nlistname); 65 (void)umask(0); 66 db = dbopen(dbtemp, O_CREAT|O_EXLOCK|O_TRUNC|O_WRONLY, 67 S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH, DB_HASH, NULL); 68 if (!db) { 69 (void)fprintf(stderr, 70 "kvm_mkdb: %s: %s\n", dbtemp, strerror(errno)); 71 exit(1); 72 } 73 create_knlist(nlistpath, db); 74 (void)(db->close)(db); 75 if (rename(dbtemp, dbname)) { 76 (void)fprintf(stderr, "kvm_mkdb: %s to %s: %s.\n", 77 dbtemp, dbname, strerror(errno)); 78 exit(1); 79 } 80 exit(0); 81 } 82 83 void 84 error(n) 85 char *n; 86 { 87 int sverr; 88 89 sverr = errno; 90 (void)fprintf(stderr, "kvm_mkdb: "); 91 if (n) 92 (void)fprintf(stderr, "%s: ", n); 93 (void)fprintf(stderr, "%s\n", strerror(sverr)); 94 exit(1); 95 } 96 97 void 98 usage() 99 { 100 (void)fprintf(stderr, "usage: kvm_mkdb [file]\n"); 101 exit(1); 102 } 103