8cb19b99f4
Add additionally safety and overflow checks to clock_ts_to_ct and the BCD routines while we're here. Perform a safety check in sys_clock_settime() first to avoid easy local root panic, without having to propagate an error value back through dozens of APIs currently lacking error returns. PR: 211960, 214300 Submitted by: Justin McOmie <justin.mcomie at gmail.com>, kib@ Reported by: Tim Newsham <tim.newsham at nccgroup.trust> Reviewed by: kib@ Sponsored by: Dell EMC Isilon, FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D9279
43 lines
1.7 KiB
C
43 lines
1.7 KiB
C
/*-
|
|
* Some data-tables that are often used.
|
|
* Cannot be copyrighted.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/libkern.h>
|
|
|
|
u_char const bcd2bin_data[] = {
|
|
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0,
|
|
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 0, 0, 0, 0, 0, 0,
|
|
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 0, 0, 0, 0, 0, 0,
|
|
30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 0, 0, 0, 0, 0, 0,
|
|
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 0, 0, 0, 0, 0, 0,
|
|
50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 0, 0, 0, 0, 0, 0,
|
|
60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 0, 0, 0, 0, 0, 0,
|
|
70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 0, 0, 0, 0, 0, 0,
|
|
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 0, 0, 0, 0, 0, 0,
|
|
90, 91, 92, 93, 94, 95, 96, 97, 98, 99
|
|
};
|
|
CTASSERT(nitems(bcd2bin_data) == LIBKERN_LEN_BCD2BIN);
|
|
|
|
u_char const bin2bcd_data[] = {
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
|
|
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
|
|
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
|
|
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
|
|
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
|
|
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
|
|
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99
|
|
};
|
|
CTASSERT(nitems(bin2bcd_data) == LIBKERN_LEN_BIN2BCD);
|
|
|
|
/* This is actually used with radix [2..36] */
|
|
char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
|
|
CTASSERT(nitems(hex2ascii_data) == LIBKERN_LEN_HEX2ASCII + 1);
|