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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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660
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4 * Copyright (C) Nginx, Inc.
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0
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10
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11
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404
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12 /*
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13 * FreeBSD does not test /etc/localtime change, however, we can workaround it
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14 * by calling tzset() with TZ and then without TZ to update timezone.
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15 * The trick should work since FreeBSD 2.1.0.
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16 *
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17 * Linux does not test /etc/localtime change in localtime(),
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18 * but may stat("/etc/localtime") several times in every strftime(),
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19 * therefore we use it to update timezone.
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20 *
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21 * Solaris does not test /etc/TIMEZONE change too and no workaround available.
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22 */
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23
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24 void
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25 ngx_timezone_update(void)
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26 {
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27 #if (NGX_FREEBSD)
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28
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29 if (getenv("TZ")) {
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30 return;
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31 }
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32
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33 putenv("TZ=UTC");
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34
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35 tzset();
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36
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37 unsetenv("TZ");
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38
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39 tzset();
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40
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41 #elif (NGX_LINUX)
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42 time_t s;
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43 struct tm *t;
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44 char buf[4];
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45
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46 s = time(0);
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47
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48 t = localtime(&s);
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49
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50 strftime(buf, 4, "%H", t);
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51
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52 #endif
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53 }
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54
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55
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112
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56 void
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57 ngx_localtime(time_t s, ngx_tm_t *tm)
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0
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58 {
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18
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59 #if (NGX_HAVE_LOCALTIME_R)
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112
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60 (void) localtime_r(&s, tm);
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0
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61
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62 #else
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63 ngx_tm_t *t;
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64
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112
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65 t = localtime(&s);
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66 *tm = *t;
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67
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68 #endif
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69
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70 tm->ngx_tm_mon++;
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71 tm->ngx_tm_year += 1900;
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72 }
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58
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73
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74
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112
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75 void
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76 ngx_libc_localtime(time_t s, struct tm *tm)
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58
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77 {
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78 #if (NGX_HAVE_LOCALTIME_R)
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112
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79 (void) localtime_r(&s, tm);
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58
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80
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81 #else
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82 struct tm *t;
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83
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84 t = localtime(&s);
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85 *tm = *t;
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86
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87 #endif
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88 }
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89
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90
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112
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91 void
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92 ngx_libc_gmtime(time_t s, struct tm *tm)
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58
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93 {
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94 #if (NGX_HAVE_LOCALTIME_R)
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112
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95 (void) gmtime_r(&s, tm);
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58
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96
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97 #else
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98 struct tm *t;
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99
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112
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100 t = gmtime(&s);
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58
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101 *tm = *t;
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102
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103 #endif
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104 }
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