system/cu: Echo NULL char too
since zero is also a valid character Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
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5018ee264c
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e4b101d2ef
@ -384,14 +384,14 @@ int main(int argc, FAR char *argv[])
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{
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int ch = getc(stdin);
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if (nobreak == 1)
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if (ch < 0)
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{
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write(g_cu.outfd, &ch, 1);
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continue;
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}
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if (ch <= 0)
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if (nobreak == 1)
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{
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write(g_cu.outfd, &ch, 1);
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continue;
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}
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