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Fix some error message format problems in checkversion() and getversion().

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Reported By: bde
This commit is contained in:
Kenneth D. Merry 1998-09-18 02:35:25 +00:00
parent 6bc32d7d5e
commit eded794a13
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=39451
1 changed files with 35 additions and 8 deletions
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43
lib/libdevstat/devstat.c
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@ -25,7 +25,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
* $Id: devstat.c,v 1.1 1998/09/15 06:23:21 gibbs Exp $
*/
#include <sys/types.h>
@ -33,6 +33,7 @@
#include <sys/errno.h>
#include <sys/dkstat.h>
#include <ctype.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
@ -159,33 +160,59 @@ checkversion(void)
int retval = 0;
int errlen = 0;
char *func_name = "checkversion";
int version;
if (getversion() != DEVSTAT_VERSION) {
version = getversion();
if (version != DEVSTAT_VERSION) {
int buflen = 0;
char tmpstr[256];
errlen = snprintf(devstat_errbuf, DEVSTAT_ERRBUF_SIZE,
/*
* This is really pretty silly, but basically the idea is
* that if getversion() returns an error (i.e. -1), then it
* has printed an error message in the buffer. Therefore,
* we need to add a \n to the end of that message before we
* print our own message in the buffer.
*/
if (version == -1) {
buflen = strlen(devstat_errbuf);
errlen = snprintf(tmpstr, sizeof(tmpstr), "\n");
strncat(devstat_errbuf, tmpstr,
DEVSTAT_ERRBUF_SIZE - buflen - 1);
buflen += errlen;
}
errlen = snprintf(tmpstr, sizeof(tmpstr),
"%s: userland devstat version %d is not "
"the same as the kernel\n%s: devstat "
"version %d\n", func_name, DEVSTAT_VERSION,
func_name, getversion());
func_name, version);
if (getversion() < DEVSTAT_VERSION)
if (version == -1) {
strncat(devstat_errbuf, tmpstr,
DEVSTAT_ERRBUF_SIZE - buflen - 1);
buflen += errlen;
} else
strncpy(devstat_errbuf, tmpstr, DEVSTAT_ERRBUF_SIZE);
if (version < DEVSTAT_VERSION)
snprintf(tmpstr, sizeof(tmpstr),
"%s: you really should know better"
" than to upgrade your\n%s: "
"userland binaries without "
"upgrading your kernel\n",
"upgrading your kernel",
func_name, func_name);
else
snprintf(tmpstr, sizeof(tmpstr),
"%s: you really should know better"
" than to upgrade your kernel "
"without\n%s: upgrading your "
"userland binaries\n",
"userland binaries",
func_name, func_name);
strncat(devstat_errbuf, tmpstr,
DEVSTAT_ERRBUF_SIZE - errlen - 1);
DEVSTAT_ERRBUF_SIZE - buflen - 1);
retval = -1;
}