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#include "kernel/types.h"
#include "kernel/stat.h"
#include "user/user.h"
char buf[512];
void
wc(int fd, char *name)
{
int i, n;
int l, w, c, inword;
l = w = c = 0;
inword = 0;
while((n = read(fd, buf, sizeof(buf))) > 0){
for(i=0; i<n; i++){
c++;
if(buf[i] == '\n')
l++;
if(strchr(" \r\t\n\v", buf[i]))
inword = 0;
else if(!inword){
w++;
inword = 1;
}
}
}
if(n < 0){
printf("wc: read error\n");
exit(-1);
}
printf("%d %d %d %s\n", l, w, c, name);
}
int
main(int argc, char *argv[])
{
int fd, i;
if(argc <= 1){
wc(0, "");
exit(0);
}
for(i = 1; i < argc; i++){
if((fd = open(argv[i], 0)) < 0){
printf("wc: cannot open %s\n", argv[i]);
exit(-1);
}
wc(fd, argv[i]);
close(fd);
}
exit(0);
}
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