nlattr: add UID/GID netlink attribute decoders

[strace] / print_timeval.c

diff --git a/print_timeval.c b/print_timeval.c
index 1b39394de0f00a895cfa4703ee88a1d3bf61eb85..3690ce76e63f95df2f5f89be3b48c54a4a7a0412 100644 (file)
--- a/print_timeval.c
+++ b/print_timeval.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2016-2018 The strace developers.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,12 +34,23 @@ typedef struct timeval timeval_t;
 
 #include MPERS_DEFS
 
-static const char timeval_fmt[]  = "{tv_sec=%jd, tv_usec=%jd}";
+#include "xstring.h"
+
+static const char timeval_fmt[]  = "{tv_sec=%lld, tv_usec=%llu}";
 
 static void
 print_timeval_t(const timeval_t *t)
 {
-       tprintf(timeval_fmt, (intmax_t) t->tv_sec, (intmax_t) t->tv_usec);
+       tprintf(timeval_fmt, (long long) t->tv_sec,
+               zero_extend_signed_to_ull(t->tv_usec));
+}
+
+static void
+print_timeval_t_utime(const timeval_t *t)
+{
+       print_timeval_t(t);
+       tprints_comment(sprinttime_usec(t->tv_sec,
+               zero_extend_signed_to_ull(t->tv_usec)));
 }
 
 MPERS_PRINTER_DECL(void, print_struct_timeval, const void *arg)
@@ -46,6 +58,18 @@ MPERS_PRINTER_DECL(void, print_struct_timeval, const void *arg)
        print_timeval_t(arg);
 }
 
+MPERS_PRINTER_DECL(bool, print_struct_timeval_data_size,
+                  const void *arg, const size_t size)
+{
+       if (size < sizeof(timeval_t)) {
+               tprints("?");
+               return false;
+       }
+
+       print_timeval_t(arg);
+       return true;
+}
+
 MPERS_PRINTER_DECL(void, print_timeval,
                   struct tcb *const tcp, const kernel_ulong_t addr)
 {
@@ -66,9 +90,9 @@ MPERS_PRINTER_DECL(void, print_timeval_utimes,
                return;
 
        tprints("[");
-       print_timeval_t(&t[0]);
+       print_timeval_t_utime(&t[0]);
        tprints(", ");
-       print_timeval_t(&t[1]);
+       print_timeval_t_utime(&t[1]);
        tprints("]");
 }
 
@@ -82,10 +106,11 @@ MPERS_PRINTER_DECL(const char *, sprint_timeval,
                strcpy(buf, "NULL");
        } else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
                   umove(tcp, addr, &t)) {
-               snprintf(buf, sizeof(buf), "%#" PRI_klx, addr);
+               xsprintf(buf, "%#" PRI_klx, addr);
        } else {
-               snprintf(buf, sizeof(buf), timeval_fmt,
-                        (intmax_t) t.tv_sec, (intmax_t) t.tv_usec);
+               xsprintf(buf, timeval_fmt,
+                        (long long) t.tv_sec,
+                        zero_extend_signed_to_ull(t.tv_usec));
        }
 
        return buf;
@@ -111,7 +136,16 @@ MPERS_PRINTER_DECL(void, print_itimerval,
 void
 print_timeval32_t(const timeval32_t *t)
 {
-       tprintf(timeval_fmt, (intmax_t) t->tv_sec, (intmax_t) t->tv_usec);
+       tprintf(timeval_fmt, (long long) t->tv_sec,
+               zero_extend_signed_to_ull(t->tv_usec));
+}
+
+static void
+print_timeval32_t_utime(const timeval32_t *t)
+{
+       print_timeval32_t(t);
+       tprints_comment(sprinttime_usec(t->tv_sec,
+               zero_extend_signed_to_ull(t->tv_usec)));
 }
 
 void
@@ -134,9 +168,9 @@ print_timeval32_utimes(struct tcb *const tcp, const kernel_ulong_t addr)
                return;
 
        tprints("[");
-       print_timeval32_t(&t[0]);
+       print_timeval32_t_utime(&t[0]);
        tprints(", ");
-       print_timeval32_t(&t[1]);
+       print_timeval32_t_utime(&t[1]);
        tprints("]");
 }
 
@@ -165,10 +199,11 @@ sprint_timeval32(struct tcb *const tcp, const kernel_ulong_t addr)
                strcpy(buf, "NULL");
        } else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
                   umove(tcp, addr, &t)) {
-               snprintf(buf, sizeof(buf), "%#" PRI_klx, addr);
+               xsprintf(buf, "%#" PRI_klx, addr);
        } else {
-               snprintf(buf, sizeof(buf), timeval_fmt,
-                        (intmax_t) t.tv_sec, (intmax_t) t.tv_usec);
+               xsprintf(buf, timeval_fmt,
+                        (long long) t.tv_sec,
+                        zero_extend_signed_to_ull(t.tv_usec));
        }
 
        return buf;