Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>

void
cat(int f, char *s)
{
        char buf[8192];
        long n;

        while((n=read(f, buf, (long)sizeof buf))>0)
                if(write(1, buf, n)!=n)
                        sysfatal("write error copying %s: %r", s);
        if(n < 0)
                sysfatal("error reading %s: %r", s);
}

void
main(int argc, char *argv[])
{
        int f, i;

        argv0 = "cat";
        if(argc == 1)
                cat(0, "<stdin>");
        else for(i=1; i<argc; i++){
                f = open(argv[i], OREAD);
                if(f < 0)
                        sysfatal("can't open %s: %r", argv[i]);
                else{
                        cat(f, argv[i]);
                        close(f);
                }
        }
        exits(0);
}