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Top Forums UNIX for Dummies Questions & Answers Comparison between binary files Post 302229764 by joeyg on Wednesday 27th of August 2008 11:02:54 PM
Old 08-28-2008
Hammer & Screwdriver Take a look at diff

Below, I copy ots to another location; meaning both files are identical.
The 2nd line diff command returns nothing; confirming that the files are identical.

I then compare two slightly different versions of the file; and get the message that the binary files are different.

Code:
> cp otsort ../cbin2/ots_orig
> diff otsort ../cbin2/ots_orig
> diff ots ots64
Binary files ots and ots64 differ

This User Gave Thanks to joeyg For This Post:
 

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sepol_genusers(3)				     SE Linux binary policy API documentation					 sepol_genusers(3)

NAME
sepol_genusers - Generate a new binary policy image with a customized user configuration SYNOPSIS
#include <sepol/sepol.h> int sepol_genusers(void *data, size_t len, const char *usersdir, void *newdata, size_t *newlen); void sepol_set_delusers(int on); DESCRIPTION
sepol_genusers generates a new binary policy image from an existing binary policy image stored in the memory region described by the start- ing address data and the length len and a pair of user configuration files named system.users and local.users from the directory specified by usersdir. The resulting binary policy is placed into dynamically allocated memory and the variables newdata and newlen are set to refer to the new binary image's starting address and length. The original binary policy image is not modified. By default, sepol_genusers will preserve user entries that are defined in the original binary policy image but not defined in the user con- figuration files. If such user entries should instead by omitted entirely from the new binary policy image, then the sepol_set_delusers function may be called with on set to 1 prior to calling sepol_genusers in order to enable deletion of such users. RETURN VALUE
Returns 0 on success or -1 otherwise, with errno set appropriately. An errno of ENOENT indicates that one or both of the user configura- tion files did not exist. An errno of EINVAL indicates that either the original binary policy image or the generated one were invalid. An errno of ENOMEM indicates that insufficient memory was available to process the original binary policy image or to generate the new policy image. Invalid entries in the user configuration files are skipped with a warning. sds@tycho.nsa.gov 15 March 2005 sepol_genusers(3)
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