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author | Laurent Bercot <ska-skaware@skarnet.org> | 2015-10-14 22:54:08 +0000 |
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committer | Laurent Bercot <ska-skaware@skarnet.org> | 2015-10-14 22:54:08 +0000 |
commit | 805729e206b7586c57483aa0f4a90f7e0e2c9661 (patch) | |
tree | 4d4afb75b73cd11c953853faa48dc4cc7f236380 /tools/convert-leapsecs.c | |
parent | 2e0421fc58922697f2bb51c428599fbd44055556 (diff) | |
download | skalibs-805729e206b7586c57483aa0f4a90f7e0e2c9661.tar.xz |
- Remove /etc/leapsecs.datv2.3.8.0
- Publish tools to create the leap second table as a .c
- Simplify functions using leap seconds
- rc for 2.3.8.0
Diffstat (limited to 'tools/convert-leapsecs.c')
-rw-r--r-- | tools/convert-leapsecs.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/tools/convert-leapsecs.c b/tools/convert-leapsecs.c new file mode 100644 index 0000000..82410e6 --- /dev/null +++ b/tools/convert-leapsecs.c @@ -0,0 +1,53 @@ +#include <time.h> +#include <skalibs/uint64.h> +#include <skalibs/buffer.h> +#include <skalibs/strerr2.h> +#include <skalibs/stralloc.h> +#include <skalibs/genalloc.h> +#include <skalibs/skamisc.h> + +static genalloc table = GENALLOC_ZERO ; /* uint64 */ + +static void add_leapsecs (uint64 *t) +{ + uint64 *tab = genalloc_s(uint64, &table) ; + unsigned int n = genalloc_len(uint64, &table) ; + unsigned int i = 0 ; + for (; i < n ; i++) if (*t >= tab[i]) (*t)++ ; +} + +int main (int argc, char const *const *argv) +{ + stralloc sa = STRALLOC_ZERO ; + for (;;) + { + struct tm tm ; + uint64 tt ; + time_t t ; + char *p ; + int r ; + char fmt[UINT64_FMT] ; + sa.len = 0 ; + r = skagetln(buffer_0, &sa, '\n') ; + if (r < 0) strerr_diefu1sys(111, "read from stdin") ; + if (!r) break ; + sa.s[sa.len-1] = 0 ; + if (!strptime(sa.s, "+%Y-%m-%d", &tm)) continue ; + tm.tm_sec = 59 ; + tm.tm_min = 59 ; + tm.tm_hour = 23 ; + t = mktime(&tm) ; + if (t < 0) strerr_diefu1sys(111, "mktime") ; + tt = t + 10 ; + add_leapsecs(&tt) ; + if (!genalloc_append(uint64, &table, &tt)) + strerr_diefu1sys(111, "genalloc_append") ; + fmt[uint64_fmt(fmt, tt)] = 0 ; + buffer_puts(buffer_1, " TAI_MAGIC + ") ; + buffer_puts(buffer_1, fmt) ; + buffer_puts(buffer_1, ",\n") ; + } + buffer_unput(buffer_1, 2) ; + buffer_putsflush(buffer_1, "\n") ; + return 0 ; +} |