+ // check to make sure that we are running inside nscd
+ pos = 0;
+ fd = open("/proc/self/cmdline", O_RDONLY);
+ if (fd==-1) return -1;
+ while(1) {
+ int numread;
+ numread = read(fd, buf+pos, 1);
+ if (buf[ (pos+5)%6 ] == 'd' &&
+ buf[ (pos+4)%6 ] == 'c' &&
+ buf[ (pos+3)%6 ] == 's' &&
+ buf[ (pos+2)%6 ] == 'n' &&
+ (buf[(pos+1)%6 ] == '/' || pos==4) &&
+ (buf[(pos+0)%6 ] == 0 || numread==-1)
+ )
+ break;
+ pos = (pos+1)%6;
+ if (numread==0) { close(fd); return -1; }
+ }
+ close(fd);
+