blob: 1fbc8634972694071e3a12865e67a15428b7a636 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
char buf[0xffff];
int main() {
ssize_t nread, nwrite, remains;
srandom(1); /* Always the same pseudo-random sequence */
while ( (nread=read(0, buf, 0xfff & rand())) > 0 ) {
remains = nread;
while ( remains ) {
nwrite=write(1, buf, nread);
if ( nwrite < 0 ) {
if ( !(errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR) ) {
perror("write");
return nwrite;
}
} else {
remains -= nwrite;
}
}
/*fprintf(stderr, "nread==%zu, nwrite==%zu\n", nread, nwrite);*/
usleep( 0xffff & rand() );
}
if ( nread < 0 ) {
perror("read");
return nread;
}
return 0;
}
|
