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Fixed a potential buffer overflow problem, in the device name handling.

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PR:		bin/15101
This commit is contained in:
Josef Karthauser 1999-12-05 20:05:45 +00:00
parent 73f2a3c2c8
commit 3712337aef
1 changed files with 9 additions and 7 deletions
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16
usr.sbin/cdcontrol/cdcontrol.c
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@ -33,6 +33,7 @@ static const char rcsid[] =
#include <sys/file.h>
#include <sys/cdio.h>
#include <sys/ioctl.h>
#include <sys/param.h>
#include <histedit.h>
#define VERSION "2.0"
@ -1036,17 +1037,18 @@ char *parse (char *buf, int *cmd)
int open_cd ()
{
char devbuf[80];
char devbuf[MAXPATHLEN];
if (fd > -1)
return (1);
if (*cdname == '/')
strcpy (devbuf, cdname);
else if (*cdname == 'r')
sprintf (devbuf, "/dev/%s", cdname);
else
sprintf (devbuf, "/dev/r%s", cdname);
if (*cdname == '/') {
snprintf (devbuf, MAXPATHLEN, "%s", cdname);
} else if (*cdname == 'r') {
snprintf (devbuf, MAXPATHLEN, "/dev/%s", cdname);
} else {
snprintf (devbuf, MAXPATHLEN, "/dev/r%s", cdname);
}
fd = open (devbuf, O_RDONLY);