]> granicus.if.org Git - strace/blobdiff - time.c
nlattr: add UID/GID netlink attribute decoders
[strace] / time.c
diff --git a/time.c b/time.c
index f93f150031d50dc37b03c3d43335629b22261ad7..1f44dca714e0693f25509a59635b73fee7b31ca3 100644 (file)
--- a/time.c
+++ b/time.c
@@ -2,6 +2,7 @@
  * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
  * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
  * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
+ * Copyright (c) 1996-2018 The strace developers.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
 #include <signal.h>
 #include <sys/timex.h>
 
-#ifndef UTIME_NOW
-#define UTIME_NOW ((1l << 30) - 1l)
-#endif
-#ifndef UTIME_OMIT
-#define UTIME_OMIT ((1l << 30) - 2l)
-#endif
-
-#if SUPPORTED_PERSONALITIES > 1
-# if defined X86_64 || defined X32
-#  define current_time_t_is_compat (current_personality == 1)
-# else
-#  define current_time_t_is_compat (current_wordsize == 4)
-# endif
-#else
-# define current_time_t_is_compat 0
-#endif
-
-struct timeval32
-{
-       u_int32_t tv_sec, tv_usec;
-};
-
-void
-printtv_bitness(struct tcb *tcp, long addr, enum bitness_t bitness, int special)
-{
-       char buf[TIMEVAL_TEXT_BUFSIZE];
-       sprinttv(buf, tcp, addr, bitness, special);
-       tprints(buf);
-}
-
-static char *
-do_sprinttv(char *buf, const uintmax_t sec, const uintmax_t usec,
-           const int special)
-{
-       if (special) {
-               switch (usec) {
-                       case UTIME_NOW:
-                               return stpcpy(buf, "UTIME_NOW");
-                       case UTIME_OMIT:
-                               return stpcpy(buf, "UTIME_OMIT");
-               }
-       }
-       return buf + sprintf(buf, "{%ju, %ju}", sec, usec);
-}
-
-char *
-sprinttv(char *buf, struct tcb *tcp, long addr, enum bitness_t bitness, int special)
+static void
+print_timezone(struct tcb *const tcp, const kernel_ulong_t addr)
 {
-       if (addr == 0)
-               return stpcpy(buf, "NULL");
+       struct timezone tz;
 
-       if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)))
-               return buf + sprintf(buf, "%#lx", addr);
+       if (umove_or_printaddr(tcp, addr, &tz))
+               return;
 
-       if (bitness == BITNESS_32 || current_time_t_is_compat)
-       {
-               struct timeval32 tv;
-
-               if (umove(tcp, addr, &tv) >= 0)
-                       return do_sprinttv(buf, tv.tv_sec, tv.tv_usec, special);
-       } else {
-               struct timeval tv;
-
-               if (umove(tcp, addr, &tv) >= 0)
-                       return do_sprinttv(buf, tv.tv_sec, tv.tv_usec, special);
-       }
-
-       return buf + sprintf(buf, "%#lx", addr);
-}
-
-void
-print_timespec(struct tcb *tcp, long addr)
-{
-       char buf[TIMESPEC_TEXT_BUFSIZE];
-       sprint_timespec(buf, tcp, addr);
-       tprints(buf);
-}
-
-void
-sprint_timespec(char *buf, struct tcb *tcp, long addr)
-{
-       if (addr == 0)
-               strcpy(buf, "NULL");
-       else if (!verbose(tcp))
-               sprintf(buf, "%#lx", addr);
-       else {
-               int rc;
-
-#if SUPPORTED_PERSONALITIES > 1
-               if (current_time_t_is_compat) {
-                       struct timeval32 tv;
-
-                       rc = umove(tcp, addr, &tv);
-                       if (rc >= 0)
-                               sprintf(buf, "{%u, %u}",
-                                       tv.tv_sec, tv.tv_usec);
-               } else
-#endif
-               {
-                       struct timespec ts;
-
-                       rc = umove(tcp, addr, &ts);
-                       if (rc >= 0)
-                               sprintf(buf, "{%ju, %ju}",
-                                       (uintmax_t) ts.tv_sec,
-                                       (uintmax_t) ts.tv_nsec);
-               }
-               if (rc < 0)
-                       strcpy(buf, "{...}");
-       }
+       tprintf("{tz_minuteswest=%d, tz_dsttime=%d}",
+               tz.tz_minuteswest, tz.tz_dsttime);
 }
 
 SYS_FUNC(gettimeofday)
 {
        if (exiting(tcp)) {
-               printtv(tcp, tcp->u_arg[0]);
+               print_timeval(tcp, tcp->u_arg[0]);
                tprints(", ");
-               printtv(tcp, tcp->u_arg[1]);
+               print_timezone(tcp, tcp->u_arg[1]);
        }
        return 0;
 }
@@ -158,9 +59,9 @@ SYS_FUNC(gettimeofday)
 SYS_FUNC(osf_gettimeofday)
 {
        if (exiting(tcp)) {
-               printtv_bitness(tcp, tcp->u_arg[0], BITNESS_32, 0);
+               print_timeval32(tcp, tcp->u_arg[0]);
                tprints(", ");
-               printtv_bitness(tcp, tcp->u_arg[1], BITNESS_32, 0);
+               print_timezone(tcp, tcp->u_arg[1]);
        }
        return 0;
 }
@@ -168,9 +69,9 @@ SYS_FUNC(osf_gettimeofday)
 
 SYS_FUNC(settimeofday)
 {
-       printtv(tcp, tcp->u_arg[0]);
+       print_timeval(tcp, tcp->u_arg[0]);
        tprints(", ");
-       printtv(tcp, tcp->u_arg[1]);
+       print_timezone(tcp, tcp->u_arg[1]);
 
        return RVAL_DECODED;
 }
@@ -178,25 +79,14 @@ SYS_FUNC(settimeofday)
 #ifdef ALPHA
 SYS_FUNC(osf_settimeofday)
 {
-       printtv_bitness(tcp, tcp->u_arg[0], BITNESS_32, 0);
+       print_timeval32(tcp, tcp->u_arg[0]);
        tprints(", ");
-       printtv_bitness(tcp, tcp->u_arg[1], BITNESS_32, 0);
+       print_timezone(tcp, tcp->u_arg[1]);
 
        return RVAL_DECODED;
 }
 #endif
 
-SYS_FUNC(adjtime)
-{
-       if (entering(tcp)) {
-               printtv(tcp, tcp->u_arg[0]);
-               tprints(", ");
-       } else {
-               printtv(tcp, tcp->u_arg[1]);
-       }
-       return 0;
-}
-
 SYS_FUNC(nanosleep)
 {
        if (entering(tcp)) {
@@ -226,7 +116,8 @@ SYS_FUNC(nanosleep)
 SYS_FUNC(getitimer)
 {
        if (entering(tcp)) {
-               printxval(itimer_which, tcp->u_arg[0], "ITIMER_???");
+               printxval_index(itimer_which, (unsigned int) tcp->u_arg[0],
+                               "ITIMER_???");
                tprints(", ");
        } else {
                print_itimerval(tcp, tcp->u_arg[1]);
@@ -238,7 +129,8 @@ SYS_FUNC(getitimer)
 SYS_FUNC(osf_getitimer)
 {
        if (entering(tcp)) {
-               printxval(itimer_which, tcp->u_arg[0], "ITIMER_???");
+               printxval_index(itimer_which, (unsigned int) tcp->u_arg[0],
+                               "ITIMER_???");
                tprints(", ");
        } else {
                print_itimerval32(tcp, tcp->u_arg[1]);
@@ -250,7 +142,8 @@ SYS_FUNC(osf_getitimer)
 SYS_FUNC(setitimer)
 {
        if (entering(tcp)) {
-               printxval(itimer_which, tcp->u_arg[0], "ITIMER_???");
+               printxval_index(itimer_which, (unsigned int) tcp->u_arg[0],
+                               "ITIMER_???");
                tprints(", ");
                print_itimerval(tcp, tcp->u_arg[1]);
                tprints(", ");
@@ -264,7 +157,8 @@ SYS_FUNC(setitimer)
 SYS_FUNC(osf_setitimer)
 {
        if (entering(tcp)) {
-               printxval(itimer_which, tcp->u_arg[0], "ITIMER_???");
+               printxval_index(itimer_which, (unsigned int) tcp->u_arg[0],
+                               "ITIMER_???");
                tprints(", ");
                print_itimerval32(tcp, tcp->u_arg[1]);
                tprints(", ");
@@ -278,14 +172,13 @@ SYS_FUNC(osf_setitimer)
 #include "xlat/adjtimex_state.h"
 
 static int
-do_adjtimex(struct tcb *tcp, long addr)
+do_adjtimex(struct tcb *const tcp, const kernel_ulong_t addr)
 {
        if (print_timex(tcp, addr))
                return 0;
-       tcp->auxstr = xlookup(adjtimex_state, tcp->u_rval);
-       if (tcp->auxstr)
-               return RVAL_STR;
-       return 0;
+       tcp->auxstr = xlat_idx(adjtimex_state, ARRAY_SIZE(adjtimex_state) - 1,
+                              (kernel_ulong_t) tcp->u_rval);
+       return RVAL_STR;
 }
 
 SYS_FUNC(adjtimex)
@@ -308,24 +201,26 @@ printclockname(int clockid)
                if ((clockid & CLOCKFD_MASK) == CLOCKFD)
                        tprintf("FD_TO_CLOCKID(%d)", CLOCKID_TO_FD(clockid));
                else {
-                       if(CPUCLOCK_PERTHREAD(clockid))
-                               tprintf("MAKE_THREAD_CPUCLOCK(%d,", CPUCLOCK_PID(clockid));
-                       else
-                               tprintf("MAKE_PROCESS_CPUCLOCK(%d,", CPUCLOCK_PID(clockid));
-                       printxval(cpuclocknames, clockid & CLOCKFD_MASK, "CPUCLOCK_???");
+                       tprintf("%s(%d,",
+                               CPUCLOCK_PERTHREAD(clockid) ?
+                                       "MAKE_THREAD_CPUCLOCK" :
+                                       "MAKE_PROCESS_CPUCLOCK",
+                               CPUCLOCK_PID(clockid));
+                       printxval_index(cpuclocknames,
+                                       (unsigned int) clockid & CLOCKFD_MASK,
+                                       "CPUCLOCK_???");
                        tprints(")");
                }
-       }
-       else
+       } else
 #endif
-               printxval(clocknames, clockid, "CLOCK_???");
+               printxval_index(clocknames, clockid, "CLOCK_???");
 }
 
 SYS_FUNC(clock_settime)
 {
        printclockname(tcp->u_arg[0]);
        tprints(", ");
-       printtv(tcp, tcp->u_arg[1]);
+       print_timespec(tcp, tcp->u_arg[1]);
 
        return RVAL_DECODED;
 }
@@ -336,7 +231,7 @@ SYS_FUNC(clock_gettime)
                printclockname(tcp->u_arg[0]);
                tprints(", ");
        } else {
-               printtv(tcp, tcp->u_arg[1]);
+               print_timespec(tcp, tcp->u_arg[1]);
        }
        return 0;
 }
@@ -348,7 +243,7 @@ SYS_FUNC(clock_nanosleep)
                tprints(", ");
                printflags(clockflags, tcp->u_arg[1], "TIMER_???");
                tprints(", ");
-               printtv(tcp, tcp->u_arg[2]);
+               print_timespec(tcp, tcp->u_arg[2]);
                tprints(", ");
        } else {
                /*
@@ -357,7 +252,7 @@ SYS_FUNC(clock_nanosleep)
                 */
                if (!tcp->u_arg[1] && is_erestart(tcp)) {
                        temporarily_clear_syserror(tcp);
-                       printtv(tcp, tcp->u_arg[3]);
+                       print_timespec(tcp, tcp->u_arg[3]);
                        restore_cleared_syserror(tcp);
                } else {
                        printaddr(tcp->u_arg[3]);
@@ -414,18 +309,6 @@ SYS_FUNC(timer_gettime)
 
 #include "xlat/timerfdflags.h"
 
-SYS_FUNC(timerfd)
-{
-       tprintf("%ld, ", tcp->u_arg[0]);
-       printclockname(tcp->u_arg[0]);
-       tprints(", ");
-       printflags(timerfdflags, tcp->u_arg[2], "TFD_???");
-       tprints(", ");
-       print_itimerspec(tcp, tcp->u_arg[3]);
-
-       return RVAL_DECODED | RVAL_FD;
-}
-
 SYS_FUNC(timerfd_create)
 {
        printclockname(tcp->u_arg[0]);
@@ -437,15 +320,17 @@ SYS_FUNC(timerfd_create)
 
 SYS_FUNC(timerfd_settime)
 {
-       printfd(tcp, tcp->u_arg[0]);
-       tprints(", ");
-       printflags(timerfdflags, tcp->u_arg[1], "TFD_???");
-       tprints(", ");
-       print_itimerspec(tcp, tcp->u_arg[2]);
-       tprints(", ");
-       print_itimerspec(tcp, tcp->u_arg[3]);
-
-       return RVAL_DECODED;
+       if (entering(tcp)) {
+               printfd(tcp, tcp->u_arg[0]);
+               tprints(", ");
+               printflags(timerfdflags, tcp->u_arg[1], "TFD_???");
+               tprints(", ");
+               print_itimerspec(tcp, tcp->u_arg[2]);
+               tprints(", ");
+       } else {
+               print_itimerspec(tcp, tcp->u_arg[3]);
+       }
+       return 0;
 }
 
 SYS_FUNC(timerfd_gettime)