Subversion Repositories planix.SVN

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

char *argv0;

int
openlog(char *name)
{
        int fd;

        fd = open(name, OWRITE);
        if(fd < 0){
                fprint(2, "%s: can't open %s: %r\n", argv0, name);
                return -1;
        }
        seek(fd, 0, 2);
        return fd;
}

void
main(int argc, char **argv)
{
        Biobuf in;
        int fd;
        char *p, *t;
        char buf[8192];

        argv0 = argv[0];
        if(argc != 4){
                fprint(2, "usage: %s console logfile prefix\n", argv0);
                exits("usage");
        }

        fd = open(argv[1], OREAD);
        if(fd < 0){
                fprint(2, "%s: can't open %s: %r\n", argv0, argv[1]);
                exits("open");
        }
        Binit(&in, fd, OREAD);

        fd = openlog(argv[2]);

        for(;;){
                if(p = Brdline(&in, '\n')){
                        p[Blinelen(&in)-1] = 0;
                        if(fprint(fd, "%s: %s\n", argv[3], p) < 0){
                                close(fd);
                                fd = openlog(argv[2]);
                                fprint(fd, "%s: %s\n", t, p);
                        }
                } else if(Blinelen(&in) == 0)   // true eof
                        break;
                else {
                        Bread(&in, buf, sizeof buf);
                }
        }
        exits(0);
}