Subversion Repositories planix.SVN

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

/*
 *  see if user is in the group noworld, i.e., has all file
 *  priviledges masked with 770, and all directories with
 *  771, before checking access rights
 */
int
noworld(char *user)
{
        Biobuf *b;
        char *p;
        int n;

        b = Bopen("/adm/users", OREAD);
        if(b == nil)
                return 0;
        while((p = Brdline(b, '\n')) != nil){
                p[Blinelen(b)-1] = 0;
                p = strchr(p, ':');
                if(p == nil)
                        continue;
                if(strncmp(p, ":noworld:", 9) == 0){
                        p += 9;
                        break;
                }
        }
        n = strlen(user);
        while(p != nil && *p != 0){
                p = strstr(p, user);
                if(p == nil)
                        break;
                if(*(p-1) == ':' || *(p-1) == ',')
                if(*(p+n) == ':' || *(p+n) == ',' || *(p+n) == 0){
                        Bterm(b);
                        return 1;
                }
                p++;
        }
        Bterm(b);
        return 0;
}