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protect against BSD pty w/ 20-bit minor

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albert 2004-02-24 04:14:36 +00:00
parent 8620fc26cf
commit fbadfaa850
3 changed files with 4 additions and 0 deletions
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2
free.1
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@ -36,6 +36,8 @@ The \fB\-V\fP displays version information.
.SH "SEE ALSO" .SH "SEE ALSO"
.BR ps (1), .BR ps (1),
.BR slabtop (1),
.BR vmstat (8),
.BR top(1) .BR top(1)
.SH AUTHORS .SH AUTHORS

1
proc/devname.c
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@ -146,6 +146,7 @@ static int guess_name(char *restrict const buf, unsigned maj, unsigned min){
} }
tmpmin = min & 0x3f; /* FALL THROUGH */ tmpmin = min & 0x3f; /* FALL THROUGH */
case 3: /* /dev/[pt]ty[p-za-o][0-9a-z] is 936 */ case 3: /* /dev/[pt]ty[p-za-o][0-9a-z] is 936 */
if(tmpmin > 255) return 0; // should never happen; array index protection
t0 = "pqrstuvwxyzabcde"[tmpmin>>4]; t0 = "pqrstuvwxyzabcde"[tmpmin>>4];
t1 = "0123456789abcdef"[tmpmin&0x0f]; t1 = "0123456789abcdef"[tmpmin&0x0f];
sprintf(buf, "/dev/tty%c%c", t0, t1); sprintf(buf, "/dev/tty%c%c", t0, t1);

1
top.1
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@ -1214,6 +1214,7 @@ With invaluable help from:
.BR free (1), .BR free (1),
.BR ps (1), .BR ps (1),
.BR uptime (1), .BR uptime (1),
.BR slabtop (1),
.BR vmstat (8), .BR vmstat (8),
.BR w (1). .BR w (1).