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Added -n option, which tests for a present core but doesn't write it

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to disk or clear it (does 'nothing').

http://mail-index.netbsd.org/tech-userlevel/2004/10/09/0000.html
This commit is contained in:
dsainty 2004-10-16 03:48:15 +00:00
parent d9d5b79249
commit 4b46224291
1 changed files with 15 additions and 7 deletions
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22
sbin/savecore/savecore.c
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@ -1,4 +1,4 @@
/* $NetBSD: savecore.c,v 1.64 2004/07/14 07:26:12 tls Exp $ */
/* $NetBSD: savecore.c,v 1.65 2004/10/16 03:48:15 dsainty Exp $ */
/*-
* Copyright (c) 1986, 1992, 1993
@ -39,7 +39,7 @@ __COPYRIGHT("@(#) Copyright (c) 1986, 1992, 1993\n\
#if 0
static char sccsid[] = "@(#)savecore.c 8.5 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: savecore.c,v 1.64 2004/07/14 07:26:12 tls Exp $");
__RCSID("$NetBSD: savecore.c,v 1.65 2004/10/16 03:48:15 dsainty Exp $");
#endif
#endif /* not lint */
@ -149,17 +149,18 @@ void Write(int, void *, int);
int
main(int argc, char *argv[])
{
int ch, level;
int ch, level, testonly;
char *ep;
dirname = NULL;
kernel = NULL;
level = 1; /* default to fastest gzip compression */
testonly = 0;
gzmode[0] = 'w';
openlog("savecore", LOG_PERROR, LOG_DAEMON);
while ((ch = getopt(argc, argv, "cdfN:vzZ:")) != -1)
while ((ch = getopt(argc, argv, "cdfnN:vzZ:")) != -1)
switch(ch) {
case 'c':
clear = 1;
@ -171,6 +172,9 @@ main(int argc, char *argv[])
case 'f':
force = 1;
break;
case 'n':
testonly = 1;
break;
case 'N':
kernel = optarg;
break;
@ -192,7 +196,7 @@ main(int argc, char *argv[])
argc -= optind;
argv += optind;
if (argc != (clear ? 0 : 1))
if (argc != ((clear || testonly) ? 0 : 1))
usage();
gzmode[1] = level + '0';
@ -206,7 +210,7 @@ main(int argc, char *argv[])
(void)time(&now);
kmem_setup();
if (clear) {
if (clear && !testonly) {
clear_dump();
exit(0);
}
@ -214,6 +218,10 @@ main(int argc, char *argv[])
if (!dump_exists() && !force)
exit(1);
if (testonly)
/* If -n was passed and there was a dump, exit at level 0 */
exit(0);
check_kmem();
if (panicstr)
@ -794,6 +802,6 @@ void
usage(void)
{
(void)syslog(LOG_ERR,
"usage: savecore [-cfvz] [-N system] [-Z level] directory");
"usage: savecore [-cfnvz] [-N system] [-Z level] directory");
exit(1);
}