1 /* $NetBSD: gcore.c,v 1.8 2005/01/09 17:47:45 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __RCSID("$NetBSD: gcore.c,v 1.8 2005/01/09 17:47:45 christos Exp $"); 41 42 #include <sys/types.h> 43 #include <sys/param.h> 44 #include <sys/time.h> 45 #include <sys/ptrace.h> 46 #include <sys/proc.h> 47 48 #include <stdio.h> 49 #include <string.h> 50 #include <err.h> 51 #include <limits.h> 52 #include <stdlib.h> 53 #include <unistd.h> 54 #include <errno.h> 55 56 static void usage(void) __attribute__((__noreturn__)); 57 58 static void 59 usage(void) 60 { 61 (void)fprintf(stderr, "Usage: %s [-c <corename>] <pid> [<pid> ...]\n", 62 getprogname()); 63 exit(1); 64 } 65 66 67 int 68 main(int argc, char **argv) 69 { 70 int c; 71 char *corename = NULL; 72 int corelen = 0; 73 74 while ((c = getopt(argc, argv, "c:")) != -1) 75 switch (c) { 76 case 'c': 77 corename = optarg; 78 corelen = strlen(corename); 79 break; 80 case '?': 81 default: 82 usage(); 83 /*NOTREACHED*/ 84 } 85 86 if (optind == argc) 87 usage(); 88 89 for (c = optind; c < argc; c++) { 90 char *ep; 91 long lval; 92 93 errno = 0; 94 lval = strtol(argv[c], &ep, 0); 95 if (argv[c] == '\0' || *ep) 96 errx(1, "`%s' is not a number.", argv[c]); 97 if (errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN)) 98 err(1, "Pid `%s'", argv[c]); 99 if (ptrace(PT_DUMPCORE, (pid_t)lval, corename, corelen) == -1) 100 err(1, "ptrace(PT_DUMPCORE) failed"); 101 } 102 return 0; 103 } 104