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system/cu: Echo NULL char too

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since zero is also a valid character

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao 2020-04-15 10:32:13 +08:00 committed by YAMAMOTO Takashi
parent 5018ee264c
commit e4b101d2ef
1 changed files with 3 additions and 3 deletions
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6
system/cu/cu_main.c
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@ -384,14 +384,14 @@ int main(int argc, FAR char *argv[])
{ {
int ch = getc(stdin); int ch = getc(stdin);
if (nobreak == 1) if (ch < 0)
{ {
write(g_cu.outfd, &ch, 1);
continue; continue;
} }
if (ch <= 0) if (nobreak == 1)
{ {
write(g_cu.outfd, &ch, 1);
continue; continue;
} }