[fusl] clang-format fusl

fusl/src/time/__tz.c

 #include "time_impl.h"
 #include <stdint.h>
 #include <limits.h>
 #include <stdlib.h>
 #include <string.h>
 #include "libc.h"
 
-long  __timezone = 0;
-int   __daylight = 0;
-char *__tzname[2] = { 0, 0 };
+long __timezone = 0;
+int __daylight = 0;
+char* __tzname[2] = {0, 0};
 
 weak_alias(__timezone, timezone);
 weak_alias(__daylight, daylight);
 weak_alias(__tzname, tzname);
 
-static char std_name[TZNAME_MAX+1];
-static char dst_name[TZNAME_MAX+1];
+static char std_name[TZNAME_MAX + 1];
+static char dst_name[TZNAME_MAX + 1];
 const char __gmt[] = "GMT";
 
 static int dst_off;
 static int r0[5], r1[5];
 
 static const unsigned char *zi, *trans, *index, *types, *abbrevs, *abbrevs_end;
 static size_t map_size;
 
 static char old_tz_buf[32];
-static char *old_tz = old_tz_buf;
+static char* old_tz = old_tz_buf;
 static size_t old_tz_size = sizeof old_tz_buf;
 
 static volatile int lock[2];
 
-static int getint(const char **p)
-{
-        unsigned x;
-        for (x=0; **p-'0'<10U; (*p)++) x = **p-'0' + 10*x;
-        return x;
-}
-
-static int getoff(const char **p)
-{
-        int neg = 0;
-        if (**p == '-') {
-                ++*p;
-                neg = 1;
-        } else if (**p == '+') {
-                ++*p;
-        }
-        int off = 3600*getint(p);
-        if (**p == ':') {
-                ++*p;
-                off += 60*getint(p);
-                if (**p == ':') {
-                        ++*p;
-                        off += getint(p);
-                }
-        }
-        return neg ? -off : off;
-}
-
-static void getrule(const char **p, int rule[5])
-{
-        int r = rule[0] = **p;
-
-        if (r!='M') {
-                if (r=='J') ++*p;
-                else rule[0] = 0;
-                rule[1] = getint(p);
-        } else {
-                ++*p; rule[1] = getint(p);
-                ++*p; rule[2] = getint(p);
-                ++*p; rule[3] = getint(p);
-        }
-
-        if (**p=='/') {
-                ++*p;
-                rule[4] = getoff(p);
-        } else {
-                rule[4] = 7200;
-        }
-}
-
-static void getname(char *d, const char **p)
-{
-        int i;
-        if (**p == '<') {
-                ++*p;
-                for (i=0; **p!='>' && i<TZNAME_MAX; i++)
-                        d[i] = (*p)[i];
-                ++*p;
-        } else {
-                for (i=0; ((*p)[i]|32)-'a'<26U && i<TZNAME_MAX; i++)
-                        d[i] = (*p)[i];
-        }
-        *p += i;
-        d[i] = 0;
+static int getint(const char** p) {
+  unsigned x;
+  for (x = 0; **p - '0' < 10U; (*p)++)
+    x = **p - '0' + 10 * x;
+  return x;
+}
+
+static int getoff(const char** p) {
+  int neg = 0;
+  if (**p == '-') {
+    ++*p;
+    neg = 1;
+  } else if (**p == '+') {
+    ++*p;
+  }
+  int off = 3600 * getint(p);
+  if (**p == ':') {
+    ++*p;
+    off += 60 * getint(p);
+    if (**p == ':') {
+      ++*p;
+      off += getint(p);
+    }
+  }
+  return neg ? -off : off;
+}
+
+static void getrule(const char** p, int rule[5]) {
+  int r = rule[0] = **p;
+
+  if (r != 'M') {
+    if (r == 'J')
+      ++*p;
+    else
+      rule[0] = 0;
+    rule[1] = getint(p);
+  } else {
+    ++*p;
+    rule[1] = getint(p);
+    ++*p;
+    rule[2] = getint(p);
+    ++*p;
+    rule[3] = getint(p);
+  }
+
+  if (**p == '/') {
+    ++*p;
+    rule[4] = getoff(p);
+  } else {
+    rule[4] = 7200;
+  }
+}
+
+static void getname(char* d, const char** p) {
+  int i;
+  if (**p == '<') {
+    ++*p;
+    for (i = 0; **p != '>' && i < TZNAME_MAX; i++)
+      d[i] = (*p)[i];
+    ++*p;
+  } else {
+    for (i = 0; ((*p)[i] | 32) - 'a' < 26U && i < TZNAME_MAX; i++)
+      d[i] = (*p)[i];
+  }
+  *p += i;
+  d[i] = 0;
 }
 
 #define VEC(...) ((const unsigned char[]){__VA_ARGS__})
 
-static uint32_t zi_read32(const unsigned char *z)
-{
-        return (unsigned)z[0]<<24 | z[1]<<16 | z[2]<<8 | z[3];
-}
-
-static size_t zi_dotprod(const unsigned char *z, const unsigned char *v, size_t n)
-{
-        size_t y;
-        uint32_t x;
-        for (y=0; n; n--, z+=4, v++) {
-                x = zi_read32(z);
-                y += x * *v;
-        }
-        return y;
-}
-
-int __munmap(void *, size_t);
-
-static void do_tzset()
-{
-        char buf[NAME_MAX+25], *pathname=buf+24;
-        const char *try, *s, *p;
-        const unsigned char *map = 0;
-        size_t i;
-        static const char search[] =
-                "/usr/share/zoneinfo/\0/share/zoneinfo/\0/etc/zoneinfo/\0";
-
-        s = getenv("TZ");
-        if (!s) s = "/etc/localtime";
-        if (!*s) s = __gmt;
-
-        if (old_tz && !strcmp(s, old_tz)) return;
-
-        if (zi) __munmap((void *)zi, map_size);
-
-        /* Cache the old value of TZ to check if it has changed. Avoid
-         * free so as not to pull it into static programs. Growth
-         * strategy makes it so free would have minimal benefit anyway. */
-        i = strlen(s);
-        if (i > PATH_MAX+1) s = __gmt, i = 3;
-        if (i >= old_tz_size) {
-                old_tz_size *= 2;
-                if (i >= old_tz_size) old_tz_size = i+1;
-                if (old_tz_size > PATH_MAX+2) old_tz_size = PATH_MAX+2;
-                old_tz = malloc(old_tz_size);
-        }
-        if (old_tz) memcpy(old_tz, s, i+1);
-
-        /* Non-suid can use an absolute tzfile pathname or a relative
-         * pathame beginning with "."; in secure mode, only the
-         * standard path will be searched. */
-        if (*s == ':' || ((p=strchr(s, '/')) && !memchr(s, ',', p-s))) {
-                if (*s == ':') s++;
-                if (*s == '/' || *s == '.') {
-                        if (!libc.secure || !strcmp(s, "/etc/localtime"))
-                                map = __map_file(s, &map_size);
-                } else {
-                        size_t l = strlen(s);
-                        if (l <= NAME_MAX && !strchr(s, '.')) {
-                                memcpy(pathname, s, l+1);
-                                pathname[l] = 0;
-                                for (try=search; !map && *try; try+=l+1) {
-                                        l = strlen(try);
-                                        memcpy(pathname-l, try, l);
-                                        map = __map_file(pathname-l, &map_size);
-                                }
-                        }
-                }
-                if (!map) s = __gmt;
-        }
-        if (map && (map_size < 44 || memcmp(map, "TZif", 4))) {
-                __munmap((void *)map, map_size);
-                map = 0;
-                s = __gmt;
-        }
-
-        zi = map;
-        if (map) {
-                int scale = 2;
-                if (sizeof(time_t) > 4 && map[4]=='2') {
-                        size_t skip = zi_dotprod(zi+20, VEC(1,1,8,5,6,1), 6);
-                        trans = zi+skip+44+44;
-                        scale++;
-                } else {
-                        trans = zi+44;
-                }
-                index = trans + (zi_read32(trans-12) << scale);
-                types = index + zi_read32(trans-12);
-                abbrevs = types + 6*zi_read32(trans-8);
-                abbrevs_end = abbrevs + zi_read32(trans-4);
-                if (zi[map_size-1] == '\n') {
-                        for (s = (const char *)zi+map_size-2; *s!='\n'; s--);
-                        s++;
-                } else {
-                        const unsigned char *p;
-                        __tzname[0] = __tzname[1] = 0;
-                        __daylight = __timezone = dst_off = 0;
-                        for (i=0; i<5; i++) r0[i] = r1[i] = 0;
-                        for (p=types; p<abbrevs; p+=6) {
-                                if (!p[4] && !__tzname[0]) {
-                                        __tzname[0] = (char *)abbrevs + p[5];
-                                        __timezone = -zi_read32(p);
-                                }
-                                if (p[4] && !__tzname[1]) {
-                                        __tzname[1] = (char *)abbrevs + p[5];
-                                        dst_off = -zi_read32(p);
-                                        __daylight = 1;
-                                }
-                        }
-                        if (!__tzname[0]) __tzname[0] = __tzname[1];
-                        if (!__tzname[0]) __tzname[0] = (char *)__gmt;
-                        if (!__daylight) {
-                                __tzname[1] = __tzname[0];
-                                dst_off = __timezone;
-                        }
-                        return;
-                }
-        }
-
-        if (!s) s = __gmt;
-        getname(std_name, &s);
-        __tzname[0] = std_name;
-        __timezone = getoff(&s);
-        getname(dst_name, &s);
-        __tzname[1] = dst_name;
-        if (dst_name[0]) {
-                __daylight = 1;
-                if (*s == '+' || *s=='-' || *s-'0'<10U)
-                        dst_off = getoff(&s);
-                else
-                        dst_off = __timezone - 3600;
-        } else {
-                __daylight = 0;
-                dst_off = 0;
-        }
-
-        if (*s == ',') s++, getrule(&s, r0);
-        if (*s == ',') s++, getrule(&s, r1);
+static uint32_t zi_read32(const unsigned char* z) {
+  return (unsigned)z[0] << 24 | z[1] << 16 | z[2] << 8 | z[3];
+}
+
+static size_t zi_dotprod(const unsigned char* z,
+                         const unsigned char* v,
+                         size_t n) {
+  size_t y;
+  uint32_t x;
+  for (y = 0; n; n--, z += 4, v++) {
+    x = zi_read32(z);
+    y += x * *v;
+  }
+  return y;
+}
+
+int __munmap(void*, size_t);
+
+static void do_tzset() {
+  char buf[NAME_MAX + 25], *pathname = buf + 24;
+  const char* try
+    , *s, *p;
+  const unsigned char* map = 0;
+  size_t i;
+  static const char search[] =
+      "/usr/share/zoneinfo/\0/share/zoneinfo/\0/etc/zoneinfo/\0";
+
+  s = getenv("TZ");
+  if (!s)
+    s = "/etc/localtime";
+  if (!*s)
+    s = __gmt;
+
+  if (old_tz && !strcmp(s, old_tz))
+    return;
+
+  if (zi)
+    __munmap((void*)zi, map_size);
+
+  /* Cache the old value of TZ to check if it has changed. Avoid
+   * free so as not to pull it into static programs. Growth
+   * strategy makes it so free would have minimal benefit anyway. */
+  i = strlen(s);
+  if (i > PATH_MAX + 1)
+    s = __gmt, i = 3;
+  if (i >= old_tz_size) {
+    old_tz_size *= 2;
+    if (i >= old_tz_size)
+      old_tz_size = i + 1;
+    if (old_tz_size > PATH_MAX + 2)
+      old_tz_size = PATH_MAX + 2;
+    old_tz = malloc(old_tz_size);
+  }
+  if (old_tz)
+    memcpy(old_tz, s, i + 1);
+
+  /* Non-suid can use an absolute tzfile pathname or a relative
+   * pathame beginning with "."; in secure mode, only the
+   * standard path will be searched. */
+  if (*s == ':' || ((p = strchr(s, '/')) && !memchr(s, ',', p - s))) {
+    if (*s == ':')
+      s++;
+    if (*s == '/' || *s == '.') {
+      if (!libc.secure || !strcmp(s, "/etc/localtime"))
+        map = __map_file(s, &map_size);
+    } else {
+      size_t l = strlen(s);
+      if (l <= NAME_MAX && !strchr(s, '.')) {
+        memcpy(pathname, s, l + 1);
+        pathname[l] = 0;
+        for (try = search; !map && *try; try += l + 1) {
+          l = strlen(try);
+          memcpy(pathname - l, try, l);
+          map = __map_file(pathname - l, &map_size);
+        }
+      }
+    }
+    if (!map)
+      s = __gmt;
+  }
+  if (map && (map_size < 44 || memcmp(map, "TZif", 4))) {
+    __munmap((void*)map, map_size);
+    map = 0;
+    s = __gmt;
+  }
+
+  zi = map;
+  if (map) {
+    int scale = 2;
+    if (sizeof(time_t) > 4 && map[4] == '2') {
+      size_t skip = zi_dotprod(zi + 20, VEC(1, 1, 8, 5, 6, 1), 6);
+      trans = zi + skip + 44 + 44;
+      scale++;
+    } else {
+      trans = zi + 44;
+    }
+    index = trans + (zi_read32(trans - 12) << scale);
+    types = index + zi_read32(trans - 12);
+    abbrevs = types + 6 * zi_read32(trans - 8);
+    abbrevs_end = abbrevs + zi_read32(trans - 4);
+    if (zi[map_size - 1] == '\n') {
+      for (s = (const char*)zi + map_size - 2; *s != '\n'; s--)
+        ;
+      s++;
+    } else {
+      const unsigned char* p;
+      __tzname[0] = __tzname[1] = 0;
+      __daylight = __timezone = dst_off = 0;
+      for (i = 0; i < 5; i++)
+        r0[i] = r1[i] = 0;
+      for (p = types; p < abbrevs; p += 6) {
+        if (!p[4] && !__tzname[0]) {
+          __tzname[0] = (char*)abbrevs + p[5];
+          __timezone = -zi_read32(p);
+        }
+        if (p[4] && !__tzname[1]) {
+          __tzname[1] = (char*)abbrevs + p[5];
+          dst_off = -zi_read32(p);
+          __daylight = 1;
+        }
+      }
+      if (!__tzname[0])
+        __tzname[0] = __tzname[1];
+      if (!__tzname[0])
+        __tzname[0] = (char*)__gmt;
+      if (!__daylight) {
+        __tzname[1] = __tzname[0];
+        dst_off = __timezone;
+      }
+      return;
+    }
+  }
+
+  if (!s)
+    s = __gmt;
+  getname(std_name, &s);
+  __tzname[0] = std_name;
+  __timezone = getoff(&s);
+  getname(dst_name, &s);
+  __tzname[1] = dst_name;
+  if (dst_name[0]) {
+    __daylight = 1;
+    if (*s == '+' || *s == '-' || *s - '0' < 10U)
+      dst_off = getoff(&s);
+    else
+      dst_off = __timezone - 3600;
+  } else {
+    __daylight = 0;
+    dst_off = 0;
+  }
+
+  if (*s == ',')
+    s++, getrule(&s, r0);
+  if (*s == ',')
+    s++, getrule(&s, r1);
 }
 
 /* Search zoneinfo rules to find the one that applies to the given time,
  * and determine alternate opposite-DST-status rule that may be needed. */
 
-static size_t scan_trans(long long t, int local, size_t *alt)
-{
-        int scale = 3 - (trans == zi+44);
-        uint64_t x;
-        int off = 0;
-
-        size_t a = 0, n = (index-trans)>>scale, m;
-
-        if (!n) {
-                if (alt) *alt = 0;
-                return 0;
-        }
-
-        /* Binary search for 'most-recent rule before t'. */
-        while (n > 1) {
-                m = a + n/2;
-                x = zi_read32(trans + (m<<scale));
-                if (scale == 3) x = x<<32 | zi_read32(trans + (m<<scale) + 4);
-                else x = (int32_t)x;
-                if (local) off = (int32_t)zi_read32(types + 6 * index[m-1]);
-                if (t - off < (int64_t)x) {
-                        n /= 2;
-                } else {
-                        a = m;
-                        n -= n/2;
-                }
-        }
-
-        /* First and last entry are special. First means to use lowest-index
-         * non-DST type. Last means to apply POSIX-style rule if available. */
-        n = (index-trans)>>scale;
-        if (a == n-1) return -1;
-        if (a == 0) {
-                x = zi_read32(trans + (a<<scale));
-                if (scale == 3) x = x<<32 | zi_read32(trans + (a<<scale) + 4);
-                else x = (int32_t)x;
-                if (local) off = (int32_t)zi_read32(types + 6 * index[a-1]);
-                if (t - off < (int64_t)x) {
-                        for (a=0; a<(abbrevs-types)/6; a++) {
-                                if (types[6*a+4] != types[4]) break;
-                        }
-                        if (a == (abbrevs-types)/6) a = 0;
-                        if (types[6*a+4]) {
-                                *alt = a;
-                                return 0;
-                        } else {
-                                *alt = 0;
-                                return a;
-                        }
-                }
-        }
-
-        /* Try to find a neighboring opposite-DST-status rule. */
-        if (alt) {
-                if (a && types[6*index[a-1]+4] != types[6*index[a]+4])
-                        *alt = index[a-1];
-                else if (a+1<n && types[6*index[a+1]+4] != types[6*index[a]+4])
-                        *alt = index[a+1];
-                else
-                        *alt = index[a];
-        }
-
-        return index[a];
-}
-
-static int days_in_month(int m, int is_leap)
-{
-        if (m==2) return 28+is_leap;
-        else return 30+((0xad5>>(m-1))&1);
+static size_t scan_trans(long long t, int local, size_t* alt) {
+  int scale = 3 - (trans == zi + 44);
+  uint64_t x;
+  int off = 0;
+
+  size_t a = 0, n = (index - trans) >> scale, m;
+
+  if (!n) {
+    if (alt)
+      *alt = 0;
+    return 0;
+  }
+
+  /* Binary search for 'most-recent rule before t'. */
+  while (n > 1) {
+    m = a + n / 2;
+    x = zi_read32(trans + (m << scale));
+    if (scale == 3)
+      x = x << 32 | zi_read32(trans + (m << scale) + 4);
+    else
+      x = (int32_t)x;
+    if (local)
+      off = (int32_t)zi_read32(types + 6 * index[m - 1]);
+    if (t - off < (int64_t)x) {
+      n /= 2;
+    } else {
+      a = m;
+      n -= n / 2;
+    }
+  }
+
+  /* First and last entry are special. First means to use lowest-index
+   * non-DST type. Last means to apply POSIX-style rule if available. */
+  n = (index - trans) >> scale;
+  if (a == n - 1)
+    return -1;
+  if (a == 0) {
+    x = zi_read32(trans + (a << scale));
+    if (scale == 3)
+      x = x << 32 | zi_read32(trans + (a << scale) + 4);
+    else
+      x = (int32_t)x;
+    if (local)
+      off = (int32_t)zi_read32(types + 6 * index[a - 1]);
+    if (t - off < (int64_t)x) {
+      for (a = 0; a < (abbrevs - types) / 6; a++) {
+        if (types[6 * a + 4] != types[4])
+          break;
+      }
+      if (a == (abbrevs - types) / 6)
+        a = 0;
+      if (types[6 * a + 4]) {
+        *alt = a;
+        return 0;
+      } else {
+        *alt = 0;
+        return a;
+      }
+    }
+  }
+
+  /* Try to find a neighboring opposite-DST-status rule. */
+  if (alt) {
+    if (a && types[6 * index[a - 1] + 4] != types[6 * index[a] + 4])
+      *alt = index[a - 1];
+    else if (a + 1 < n &&
+             types[6 * index[a + 1] + 4] != types[6 * index[a] + 4])
+      *alt = index[a + 1];
+    else
+      *alt = index[a];
+  }
+
+  return index[a];
+}
+
+static int days_in_month(int m, int is_leap) {
+  if (m == 2)
+    return 28 + is_leap;
+  else
+    return 30 + ((0xad5 >> (m - 1)) & 1);
 }
 
 /* Convert a POSIX DST rule plus year to seconds since epoch. */
 
-static long long rule_to_secs(const int *rule, int year)
-{
-        int is_leap;
-        long long t = __year_to_secs(year, &is_leap);
-        int x, m, n, d;
-        if (rule[0]!='M') {
-                x = rule[1];
-                if (rule[0]=='J' && (x < 60 || !is_leap)) x--;
-                t += 86400 * x;
-        } else {
-                m = rule[1];
-                n = rule[2];
-                d = rule[3];
-                t += __month_to_secs(m-1, is_leap);
-                int wday = (int)((t + 4*86400) % (7*86400)) / 86400;
-                int days = d - wday;
-                if (days < 0) days += 7;
-                if (n == 5 && days+28 >= days_in_month(m, is_leap)) n = 4;
-                t += 86400 * (days + 7*(n-1));
-        }
-        t += rule[4];
-        return t;
+static long long rule_to_secs(const int* rule, int year) {
+  int is_leap;
+  long long t = __year_to_secs(year, &is_leap);
+  int x, m, n, d;
+  if (rule[0] != 'M') {
+    x = rule[1];
+    if (rule[0] == 'J' && (x < 60 || !is_leap))
+      x--;
+    t += 86400 * x;
+  } else {
+    m = rule[1];
+    n = rule[2];
+    d = rule[3];
+    t += __month_to_secs(m - 1, is_leap);
+    int wday = (int)((t + 4 * 86400) % (7 * 86400)) / 86400;
+    int days = d - wday;
+    if (days < 0)
+      days += 7;
+    if (n == 5 && days + 28 >= days_in_month(m, is_leap))
+      n = 4;
+    t += 86400 * (days + 7 * (n - 1));
+  }
+  t += rule[4];
+  return t;
 }
 
 /* Determine the time zone in effect for a given time in seconds since the
  * epoch. It can be given in local or universal time. The results will
  * indicate whether DST is in effect at the queried time, and will give both
  * the GMT offset for the active zone/DST rule and the opposite DST. This
  * enables a caller to efficiently adjust for the case where an explicit
  * DST specification mismatches what would be in effect at the time. */
 
-void __secs_to_zone(long long t, int local, int *isdst, long *offset, long *oppoff, const char **zonename)
-{
-        LOCK(lock);
+void __secs_to_zone(long long t,
+                    int local,
+                    int* isdst,
+                    long* offset,
+                    long* oppoff,
+                    const char** zonename) {
+  LOCK(lock);
 
-        do_tzset();
+  do_tzset();
 
-        if (zi) {
-                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);
-                        *zonename = (const char *)abbrevs + types[6*i+5];
-                        if (oppoff) *oppoff = (int32_t)zi_read32(types+6*alt);
-                        UNLOCK(lock);
-                        return;
-                }
-        }
+  if (zi) {
+    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);
+      *zonename = (const char*)abbrevs + types[6 * i + 5];
+      if (oppoff)
+        *oppoff = (int32_t)zi_read32(types + 6 * alt);
+      UNLOCK(lock);
+      return;
+    }
+  }
 
-        if (!__daylight) goto std;
+  if (!__daylight)
+    goto std;
 
-        /* FIXME: may be broken if DST changes right at year boundary?
-         * Also, this could be more efficient.*/
-        long long y = t / 31556952 + 70;
-        while (__year_to_secs(y, 0) > t) y--;
-        while (__year_to_secs(y+1, 0) < t) y++;
+  /* FIXME: may be broken if DST changes right at year boundary?
+   * Also, this could be more efficient.*/
+  long long y = t / 31556952 + 70;
+  while (__year_to_secs(y, 0) > t)
+    y--;
+  while (__year_to_secs(y + 1, 0) < t)
+    y++;
 
-        long long t0 = rule_to_secs(r0, y);
-        long long t1 = rule_to_secs(r1, y);
+  long long t0 = rule_to_secs(r0, y);
+  long long t1 = rule_to_secs(r1, y);
 
-        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;
-        }
+  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;
-        *zonename = __tzname[0];
-        UNLOCK(lock);
-        return;
+  *isdst = 0;
+  *offset = -__timezone;
+  if (oppoff)
+    *oppoff = -dst_off;
+  *zonename = __tzname[0];
+  UNLOCK(lock);
+  return;
 dst:
-        *isdst = 1;
-        *offset = -dst_off;
-        if (oppoff) *oppoff = -__timezone;
-        *zonename = __tzname[1];
-        UNLOCK(lock);
+  *isdst = 1;
+  *offset = -dst_off;
+  if (oppoff)
+    *oppoff = -__timezone;
+  *zonename = __tzname[1];
+  UNLOCK(lock);
 }
 
-void __tzset()
-{
-        LOCK(lock);
-        do_tzset();
-        UNLOCK(lock);
+void __tzset() {
+  LOCK(lock);
+  do_tzset();
+  UNLOCK(lock);
 }
 
 weak_alias(__tzset, tzset);
 
-const char *__tm_to_tzname(const struct tm *tm)
-{
-        const void *p = tm->__tm_zone;
-        LOCK(lock);
-        do_tzset();
-        if (p != __gmt && p != __tzname[0] && p != __tzname[1] &&
-            (!zi || (uintptr_t)p-(uintptr_t)abbrevs >= abbrevs_end - abbrevs))
-                p = "";
-        UNLOCK(lock);
-        return p;
+const char* __tm_to_tzname(const struct tm* tm) {
+  const void* p = tm->__tm_zone;
+  LOCK(lock);
+  do_tzset();
+  if (p != __gmt && p != __tzname[0] && p != __tzname[1] &&
+      (!zi || (uintptr_t)p - (uintptr_t)abbrevs >= abbrevs_end - abbrevs))
+    p = "";
+  UNLOCK(lock);
+  return p;
 }