Subversion Repositories planix.SVN

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

void
main(int argc, char *argv[])
{
        int nflag;
        int i, len;
        char *buf, *p;

        nflag = 0;
        if(argc > 1 && strcmp(argv[1], "-n") == 0)
                nflag = 1;

        len = 1;
        for(i = 1+nflag; i < argc; i++)
                len += strlen(argv[i])+1;

        buf = malloc(len);
        if(buf == 0)
                exits("no memory");

        p = buf;
        for(i = 1+nflag; i < argc; i++){
                strcpy(p, argv[i]);
                p += strlen(p);
                if(i < argc-1)
                        *p++ = ' ';
        }
                
        if(!nflag)
                *p++ = '\n';

        if(write(1, buf, p-buf) < 0){
                fprint(2, "echo: write error: %r\n");
                exits("write error");
        }

        exits((char *)0);
}