source:
EcnlProtoTool/trunk/musl-1.1.18/src/time/__asctime.c
Last change on this file was 444, checked in by , 4 years ago | |
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File size: 853 bytes |
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1 | #include <time.h> |
2 | #include <stdio.h> |
3 | #include <langinfo.h> |
4 | #include "locale_impl.h" |
5 | #include "atomic.h" |
6 | |
7 | const char *__nl_langinfo_l(nl_item, locale_t); |
8 | |
9 | char *__asctime(const struct tm *restrict tm, char *restrict buf) |
10 | { |
11 | if (snprintf(buf, 26, "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n", |
12 | __nl_langinfo_l(ABDAY_1+tm->tm_wday, C_LOCALE), |
13 | __nl_langinfo_l(ABMON_1+tm->tm_mon, C_LOCALE), |
14 | tm->tm_mday, tm->tm_hour, |
15 | tm->tm_min, tm->tm_sec, |
16 | 1900 + tm->tm_year) >= 26) |
17 | { |
18 | /* ISO C requires us to use the above format string, |
19 | * even if it will not fit in the buffer. Thus asctime_r |
20 | * is _supposed_ to crash if the fields in tm are too large. |
21 | * We follow this behavior and crash "gracefully" to warn |
22 | * application developers that they may not be so lucky |
23 | * on other implementations (e.g. stack smashing..). |
24 | */ |
25 | a_crash(); |
26 | } |
27 | return buf; |
28 | } |
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