ref: 9ed0dd3a7fc2e9242af1e17bc9fda7f6e97063f1
parent: 580605615f869d7c188816a796edf1386a23dacf
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Wed Aug 16 07:08:55 EDT 2023
tput: use iounit(2) of the file-descriptor by default
--- a/sys/man/1/tput
+++ b/sys/man/1/tput
@@ -22,7 +22,9 @@
will write the data read to standard output (the default is to
discard the data).
.PP
-A read blocksize (default is 8192) in bytes can be given with the
+A read blocksize (default is the
+.IR iounit (2)
+of file-descriptor) in bytes can be given with the
.B -b
.I buflen
option.
@@ -33,7 +35,8 @@
.SH SOURCE
.B /sys/src/cmd/tput.c
.SH SEE ALSO
-.IR iostats (4)
+.IR iostats (4),
+.IR iounit (2)
.SH DIAGNOSTICS
.I Tput
sets error status on read error.
--- a/sys/src/cmd/tput.c
+++ b/sys/src/cmd/tput.c
@@ -2,7 +2,7 @@
#include <libc.h>
int dopipe;
-int buflen = 8192;
+int buflen;
uvlong bc, sec;
void
@@ -18,7 +18,7 @@
double speed;
int rc, cpid;
char *buf;
-
+
ARGBEGIN {case 'b':
buflen = atoi(EARGF(usage()));
@@ -32,9 +32,14 @@
if(argc != 0)
usage();
-
+
bc = 0;
sec = 0;
+ if(buflen <= 0){+ buflen = iounit(0);
+ if(buflen <= 0)
+ buflen = IOUNIT;
+ }
buf = sbrk(buflen);
if(buf == (void*)-1)
sysfatal("out of memory");