fix use of memset without declaration in sched.h cpu set macros

[musl] / src / time / __tz.c

diff --git a/src/time/__tz.c b/src/time/__tz.c
index 4ce2025..ffe8d40 100644 (file)
--- a/src/time/__tz.c
+++ b/src/time/__tz.c
@@ -27,7 +27,7 @@ static char old_tz_buf[32];
 static char *old_tz = old_tz_buf;
 static size_t old_tz_size = sizeof old_tz_buf;
 
-static int lock[2];
+static volatile int lock[2];
 
 static int getint(const char **p)
 {
@@ -84,7 +84,7 @@ static void getname(char *d, const char **p)
        int i;
        if (**p == '<') {
                ++*p;
-               for (i=0; **p!='>' && i<TZNAME_MAX; i++)
+               for (i=0; (*p)[i]!='>' && i<TZNAME_MAX; i++)
                        d[i] = (*p)[i];
                ++*p;
        } else {
@@ -125,7 +125,8 @@ static void do_tzset()
                "/usr/share/zoneinfo/\0/share/zoneinfo/\0/etc/zoneinfo/\0";
 
        s = getenv("TZ");
-       if (!s || !*s) s = "/etc/localtime";
+       if (!s) s = "/etc/localtime";
+       if (!*s) s = __gmt;
 
        if (old_tz && !strcmp(s, old_tz)) return;
 
@@ -353,9 +354,9 @@ void __secs_to_zone(long long t, int local, int *isdst, long *offset, long *oppo
                size_t alt, i = scan_trans(t, local, &alt);
                if (i != -1) {
                        *isdst = types[6*i+4];
-                       *offset = -(int32_t)zi_read32(types+6*i);
+                       *offset = (int32_t)zi_read32(types+6*i);
                        *zonename = (const char *)abbrevs + types[6*i+5];
-                       if (oppoff) *oppoff = -(int32_t)zi_read32(types+6*alt);
+                       if (oppoff) *oppoff = (int32_t)zi_read32(types+6*alt);
                        UNLOCK(lock);
                        return;
                }
@@ -372,32 +373,28 @@ void __secs_to_zone(long long t, int local, int *isdst, long *offset, long *oppo
        long long t0 = rule_to_secs(r0, y);
        long long t1 = rule_to_secs(r1, y);
 
+       if (!local) {
+               t0 += __timezone;
+               t1 += dst_off;
+       }
        if (t0 < t1) {
-               if (!local) {
-                       t0 += __timezone;
-                       t1 += dst_off;
-               }
                if (t >= t0 && t < t1) goto dst;
                goto std;
        } else {
-               if (!local) {
-                       t1 += __timezone;
-                       t0 += dst_off;
-               }
                if (t >= t1 && t < t0) goto std;
                goto dst;
        }
 std:
        *isdst = 0;
-       *offset = __timezone;
-       if (oppoff) *oppoff = dst_off;
+       *offset = -__timezone;
+       if (oppoff) *oppoff = -dst_off;
        *zonename = __tzname[0];
        UNLOCK(lock);
        return;
 dst:
        *isdst = 1;
-       *offset = dst_off;
-       if (oppoff) *oppoff = __timezone;
+       *offset = -dst_off;
+       if (oppoff) *oppoff = -__timezone;
        *zonename = __tzname[1];
        UNLOCK(lock);
 }