Subversion Repositories planix.SVN

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

int
putenv(char *name, char *val)
{
        int f;
        char ename[100];
        long s;

        if(strchr(name, '/') != nil)
                return -1;
        snprint(ename, sizeof ename, "/env/%s", name);
        if(strcmp(ename+5, name) != 0)
                return -1;
        f = create(ename, OWRITE, 0664);
        if(f < 0)
                return -1;
        s = strlen(val);
        if(write(f, val, s) != s){
                close(f);
                return -1;
        }
        close(f);
        return 0;
}