#include <u.h>#include <libc.h>#include <bio.h> voidmain(int argc, char *argv[]){ char c; int n, fd; Biobuf out; if(argc > 1){ fd = open(argv[1], OREAD); if(fd < 0){ perror(argv[1]); exits("open"); } }else fd = 0; Binit(&out, 1, OWRITE); for(;;){ n = read(fd, &c, 1); if(n < 0){ perror("read"); exits("read"); } if(n == 0) exits("eof"); Bputc(&out, c); if(c == '\n') break; } exits(0);}
#include <u.h>
#include <libc.h>
#include <bio.h>
void
main(int argc, char *argv[])
{
char c;
int n, fd;
Biobuf out;
if(argc > 1){
fd = open(argv[1], OREAD);
if(fd < 0){
perror(argv[1]);
exits("open");
}
}else
fd = 0;
Binit(&out, 1, OWRITE);
for(;;){
n = read(fd, &c, 1);
if(n < 0){
perror("read");
exits("read");
}
if(n == 0)
exits("eof");
Bputc(&out, c);
if(c == '\n')
break;
}
exits(0);
}