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ndb/dnsquery, ndb/csquery: write ">" prompt to stderr (thanks kvik)

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kvik writes:

dnsquery(8) prints the interactive prompt on stdout together with
query results, making scripted usage unnecessarily difficult.

A straightforward solution is prompting on stderr instead: as
practiced by rc(1), among many others -- promptly taking care of
the issue:

	; echo 9front.org mx | ndb/dnsquery >[2]/dev/null
This commit is contained in:
cinap_lenrek 2019-08-30 20:17:19 +02:00
parent a6fde3edc5
commit 4b9ccb2de0
2 changed files with 2 additions and 2 deletions
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2
sys/src/cmd/ndb/csquery.c
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@ -68,7 +68,7 @@ main(int argc, char **argv)
Binit(&in, 0, OREAD);
for(;;){
print("> ");
fprint(2, "> ");
p = Brdline(&in, '\n');
if(p == 0)
break;

2
sys/src/cmd/ndb/dnsquery.c
View file

@ -58,7 +58,7 @@ query(int fd)
Biobuf in;
Binit(&in, 0, OREAD);
for(print("> "); lp = Brdline(&in, '\n'); print("> ")){
for(fprint(2, "> "); lp = Brdline(&in, '\n'); fprint(2, "> ")){
n = Blinelen(&in) -1;
while(isspace(lp[n]))
lp[n--] = 0;