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rtc.c: enhance rtc ioctl parser

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* rtc.c: Update for RVAL_DECODED.
(print_rtc): Rename to print_rtc_time.
(decode_rtc_time, decode_rtc_wkalrm): New functions.
(rtc_ioctl): Use them.
[RTC_VL_READ]: Decode RTC_VL_READ.
Use printnum_long for RTC_IRQP_READ and RTC_EPOCH_READ decoding.
This commit is contained in:
Дмитрий Левин 2015-07-04 15:07:35 +03:00
parent b679508f6e
commit 97317d9d83
1 changed files with 48 additions and 47 deletions
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95
rtc.c
View File

@ -31,7 +31,7 @@
#include <linux/rtc.h>
static void
print_rtc(struct tcb *tcp, const struct rtc_time *rt)
print_rtc_time(struct tcb *tcp, const struct rtc_time *rt)
{
tprintf("{tm_sec=%d, tm_min=%d, tm_hour=%d, "
"tm_mday=%d, tm_mon=%d, tm_year=%d, ",
@ -44,72 +44,73 @@ print_rtc(struct tcb *tcp, const struct rtc_time *rt)
tprints("...}");
}
static void
decode_rtc_time(struct tcb *tcp, const long addr)
{
struct rtc_time rt;
tprints(", ");
if (!umove_or_printaddr(tcp, addr, &rt))
print_rtc_time(tcp, &rt);
}
static void
decode_rtc_wkalrm(struct tcb *tcp, const long addr)
{
struct rtc_wkalrm wk;
tprints(", ");
if (!umove_or_printaddr(tcp, addr, &wk)) {
tprintf("{enabled=%d, pending=%d, ", wk.enabled, wk.pending);
print_rtc_time(tcp, &wk.time);
tprints("}");
}
}
int
rtc_ioctl(struct tcb *tcp, const unsigned int code, const long arg)
{
switch (code) {
case RTC_ALM_SET:
case RTC_SET_TIME:
if (entering(tcp)) {
struct rtc_time rt;
if (umove(tcp, arg, &rt) < 0)
tprintf(", %#lx", arg);
else {
tprints(", ");
print_rtc(tcp, &rt);
}
}
decode_rtc_time(tcp, arg);
break;
case RTC_ALM_READ:
case RTC_RD_TIME:
if (exiting(tcp)) {
struct rtc_time rt;
if (syserror(tcp) || umove(tcp, arg, &rt) < 0)
tprintf(", %#lx", arg);
else {
tprints(", ");
print_rtc(tcp, &rt);
}
}
if (entering(tcp))
return 0;
decode_rtc_time(tcp, arg);
break;
case RTC_IRQP_SET:
case RTC_EPOCH_SET:
if (entering(tcp))
tprintf(", %lu", arg);
tprintf(", %lu", arg);
break;
case RTC_IRQP_READ:
case RTC_EPOCH_READ:
if (exiting(tcp))
tprintf(", %lu", arg);
if (entering(tcp))
return 0;
tprints(", ");
printnum_long(tcp, arg, "%lu");
break;
case RTC_WKALM_SET:
if (entering(tcp)) {
struct rtc_wkalrm wk;
if (umove(tcp, arg, &wk) < 0)
tprintf(", %#lx", arg);
else {
tprintf(", {enabled=%d, pending=%d, ",
wk.enabled, wk.pending);
print_rtc(tcp, &wk.time);
tprints("}");
}
}
decode_rtc_wkalrm(tcp, arg);
break;
case RTC_WKALM_RD:
if (exiting(tcp)) {
struct rtc_wkalrm wk;
if (syserror(tcp) || umove(tcp, arg, &wk) < 0)
tprintf(", %#lx", arg);
else {
tprintf(", {enabled=%d, pending=%d, ",
wk.enabled, wk.pending);
print_rtc(tcp, &wk.time);
tprints("}");
}
}
if (entering(tcp))
return 0;
decode_rtc_wkalrm(tcp, arg);
break;
#ifdef RTC_VL_READ
case RTC_VL_READ:
if (entering(tcp))
return 0;
tprints(", ");
printnum_int(tcp, arg, "%d");
break;
#endif
default:
return 0;
return RVAL_DECODED;
}
return 1;
return RVAL_DECODED | 1;
}