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      1 /*
      2  * Copyright (c) 2015 Dmitry V. Levin <ldv (at) altlinux.org>
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. The name of the author may not be used to endorse or promote products
     14  *    derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include "defs.h"
     29 
     30 #include DEF_MPERS_TYPE(time_t)
     31 #include DEF_MPERS_TYPE(timespec_t)
     32 #include DEF_MPERS_TYPE(timeval_t)
     33 
     34 typedef struct timespec timespec_t;
     35 typedef struct timeval timeval_t;
     36 
     37 #include MPERS_DEFS
     38 
     39 #ifndef UTIME_NOW
     40 # define UTIME_NOW ((1l << 30) - 1l)
     41 #endif
     42 #ifndef UTIME_OMIT
     43 # define UTIME_OMIT ((1l << 30) - 2l)
     44 #endif
     45 
     46 static const char time_fmt[] = "{%jd, %jd}";
     47 
     48 static void
     49 print_timespec_t(const timespec_t *t)
     50 {
     51 	tprintf(time_fmt, (intmax_t) t->tv_sec, (intmax_t) t->tv_nsec);
     52 }
     53 
     54 static void
     55 print_timespec_t_utime(const timespec_t *t)
     56 {
     57 	switch (t->tv_nsec) {
     58 	case UTIME_NOW:
     59 		tprints("UTIME_NOW");
     60 		break;
     61 	case UTIME_OMIT:
     62 		tprints("UTIME_OMIT");
     63 		break;
     64 	default:
     65 		print_timespec_t(t);
     66 		break;
     67 	}
     68 }
     69 
     70 static void
     71 print_timeval_t(const timeval_t *t)
     72 {
     73 	tprintf(time_fmt, (intmax_t) t->tv_sec, (intmax_t) t->tv_usec);
     74 }
     75 
     76 MPERS_PRINTER_DECL(void, print_timespec)(struct tcb *tcp, const long addr)
     77 {
     78 	timespec_t t;
     79 
     80 	if (umove_or_printaddr(tcp, addr, &t))
     81 		return;
     82 
     83 	print_timespec_t(&t);
     84 }
     85 
     86 MPERS_PRINTER_DECL(const char *, sprint_timespec)(struct tcb *tcp, const long addr)
     87 {
     88 	timespec_t t;
     89 	static char buf[sizeof(time_fmt) + 3 * sizeof(t)];
     90 
     91 	if (!addr) {
     92 		strcpy(buf, "NULL");
     93 	} else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
     94 		   umove(tcp, addr, &t)) {
     95 		snprintf(buf, sizeof(buf), "%#lx", addr);
     96 	} else {
     97 		snprintf(buf, sizeof(buf), time_fmt,
     98 			 (intmax_t) t.tv_sec, (intmax_t) t.tv_nsec);
     99 	}
    100 
    101 	return buf;
    102 }
    103 
    104 MPERS_PRINTER_DECL(void, print_timespec_utime_pair)(struct tcb *tcp, const long addr)
    105 {
    106 	timespec_t t[2];
    107 
    108 	if (umove_or_printaddr(tcp, addr, &t))
    109 		return;
    110 
    111 	tprints("[");
    112 	print_timespec_t_utime(&t[0]);
    113 	tprints(", ");
    114 	print_timespec_t_utime(&t[1]);
    115 	tprints("]");
    116 }
    117 
    118 MPERS_PRINTER_DECL(void, print_itimerspec)(struct tcb *tcp, const long addr)
    119 {
    120 	timespec_t t[2];
    121 
    122 	if (umove_or_printaddr(tcp, addr, &t))
    123 		return;
    124 
    125 	tprints("{it_interval=");
    126 	print_timespec_t(&t[0]);
    127 	tprints(", it_value=");
    128 	print_timespec_t(&t[1]);
    129 	tprints("}");
    130 }
    131 
    132 MPERS_PRINTER_DECL(void, print_timeval)(struct tcb *tcp, const long addr)
    133 {
    134 	timeval_t t;
    135 
    136 	if (umove_or_printaddr(tcp, addr, &t))
    137 		return;
    138 
    139 	print_timeval_t(&t);
    140 }
    141 
    142 MPERS_PRINTER_DECL(void, print_timeval_pair)(struct tcb *tcp, const long addr)
    143 {
    144 	timeval_t t[2];
    145 
    146 	if (umove_or_printaddr(tcp, addr, &t))
    147 		return;
    148 
    149 	tprints("[");
    150 	print_timeval_t(&t[0]);
    151 	tprints(", ");
    152 	print_timeval_t(&t[1]);
    153 	tprints("]");
    154 }
    155 
    156 MPERS_PRINTER_DECL(const char *, sprint_timeval)(struct tcb *tcp, const long addr)
    157 {
    158 	timeval_t t;
    159 	static char buf[sizeof(time_fmt) + 3 * sizeof(t)];
    160 
    161 	if (!addr) {
    162 		strcpy(buf, "NULL");
    163 	} else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
    164 		   umove(tcp, addr, &t)) {
    165 		snprintf(buf, sizeof(buf), "%#lx", addr);
    166 	} else {
    167 		snprintf(buf, sizeof(buf), time_fmt,
    168 			 (intmax_t) t.tv_sec, (intmax_t) t.tv_usec);
    169 	}
    170 
    171 	return buf;
    172 }
    173 
    174 MPERS_PRINTER_DECL(void, print_itimerval)(struct tcb *tcp, const long addr)
    175 {
    176 	timeval_t t[2];
    177 
    178 	if (umove_or_printaddr(tcp, addr, &t))
    179 		return;
    180 
    181 	tprints("{it_interval=");
    182 	print_timeval_t(&t[0]);
    183 	tprints(", it_value=");
    184 	print_timeval_t(&t[1]);
    185 	tprints("}");
    186 }
    187 
    188 SYS_FUNC(time)
    189 {
    190 	if (exiting(tcp)) {
    191 		time_t t;
    192 
    193 		if (!umove_or_printaddr(tcp, tcp->u_arg[0], &t))
    194 			tprintf("[%jd]", (intmax_t) t);
    195 	}
    196 
    197 	return 0;
    198 }
    199 
    200 #ifdef ALPHA
    201 
    202 typedef struct {
    203 	int tv_sec, tv_usec;
    204 } timeval32_t;
    205 
    206 static void
    207 print_timeval32_t(const timeval32_t *t)
    208 {
    209 	tprintf(time_fmt, (intmax_t) t->tv_sec, (intmax_t) t->tv_usec);
    210 }
    211 
    212 void
    213 print_timeval32(struct tcb *tcp, const long addr)
    214 {
    215 	timeval32_t t;
    216 
    217 	if (umove_or_printaddr(tcp, addr, &t))
    218 		return;
    219 
    220 	print_timeval32_t(&t);
    221 }
    222 
    223 void
    224 print_timeval32_pair(struct tcb *tcp, const long addr)
    225 {
    226 	timeval32_t t[2];
    227 
    228 	if (umove_or_printaddr(tcp, addr, &t))
    229 		return;
    230 
    231 	tprints("[");
    232 	print_timeval32_t(&t[0]);
    233 	tprints(", ");
    234 	print_timeval32_t(&t[1]);
    235 	tprints("]");
    236 }
    237 
    238 void
    239 print_itimerval32(struct tcb *tcp, const long addr)
    240 {
    241 	timeval32_t t[2];
    242 
    243 	if (umove_or_printaddr(tcp, addr, &t))
    244 		return;
    245 
    246 	tprints("{it_interval=");
    247 	print_timeval32_t(&t[0]);
    248 	tprints(", it_value=");
    249 	print_timeval32_t(&t[1]);
    250 	tprints("}");
    251 }
    252 
    253 const char *
    254 sprint_timeval32(struct tcb *tcp, const long addr)
    255 {
    256 	timeval32_t t;
    257 	static char buf[sizeof(time_fmt) + 3 * sizeof(t)];
    258 
    259 	if (!addr) {
    260 		strcpy(buf, "NULL");
    261 	} else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
    262 		   umove(tcp, addr, &t)) {
    263 		snprintf(buf, sizeof(buf), "%#lx", addr);
    264 	} else {
    265 		snprintf(buf, sizeof(buf), time_fmt,
    266 			 (intmax_t) t.tv_sec, (intmax_t) t.tv_usec);
    267 	}
    268 
    269 	return buf;
    270 }
    271 
    272 #endif /* ALPHA */
    273