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b15fd97627767291628309677c40b3f40b868497
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src
/
lib9
/
readn.c
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#include
<lib9.h>
long
readn
(
int
f
,
void
*
av
,
long
n
)
{
char
*
a
;
long
m
,
t
;
a
=
av
;
t
=
0
;
while
(
t
<
n
){
m
=
read
(
f
,
a
+
t
,
n
-
t
);
if
(
m
<=
0
){
if
(
t
==
0
)
return
m
;
break
;
}
t
+=
m
;
}
return
t
;
}