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Lib: Fix handling of buffers in timestamp formatting
The code in tm_format_real_time() mixed up two buffers and their sizes, which may cause crash in MRT dumping code. Thanks to Piotr Wydrych for the bugreport.
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@ -365,8 +365,9 @@ tm_format_real_time(char *x, size_t max, const char *fmt, btime t)
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if (!localtime_r(&ts, &tm))
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if (!localtime_r(&ts, &tm))
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return 0;
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return 0;
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byte tbuf[TM_DATETIME_BUFFER_SIZE];
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size_t tbuf_size = MIN(max, 4096);
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if (!strfusec(tbuf, max, fmt, t2))
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byte *tbuf = alloca(tbuf_size);
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if (!strfusec(tbuf, tbuf_size, fmt, t2))
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return 0;
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return 0;
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if (!strftime(x, max, tbuf, &tm))
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if (!strftime(x, max, tbuf, &tm))
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