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Top Forums Shell Programming and Scripting First time help, please - checksum script... Post 56621 by kapolani on Wednesday 6th of October 2004 11:57:16 AM
Old 10-06-2004
I'm still thinking about this one!

Would any of you happen to know if the tar command ITSELF has some kind of checksum algorithm that is used when something is un-tarred?

This would be for Tru64 unix.

If the above is true then I really don't need to do a checksum routine on the tar operation, correct?
 

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th_set_from_stat(3)						  C Library Calls					       th_set_from_stat(3)

NAME
th_set_from_stat, th_finish, th_set_type, th_set_path, th_set_link, th_set_device, th_set_user, th_set_group, th_set_mode, th_set_mtime, th_set_size - set fields of a tar file header SYNOPSIS
#include <libtar.h> void th_set_from_stat(TAR *t, struct stat *s); void th_set_type(TAR *t, mode_t mode); void th_set_path(TAR *t, char *pathname); void th_set_link(TAR *t, char *linkname); void th_set_device(TAR *t, dev_t device); void th_set_user(TAR *t, uid_t uid); void th_set_group(TAR *t, gid_t gid); void th_set_mode(TAR *t, mode_t mode); void th_set_mtime(TAR *t, time_t fmtime); void th_set_size(TAR *t, off_t fsize); void th_finish(TAR *t); VERSION
This man page documents version 1.2 of libtar. DESCRIPTION
The th_set_*() functions each set an individual field of the current tar header associated with the TAR handle t. The th_set_user() and th_set_group() functions set both the numeric user/group ID fields and the user/group name text fields. The other functions set only the field that they refer to. The th_set_from_stat() function uses the other th_set_*() functions to set all of the fields at once, based on the data passed to it in the argument s. The th_finish() function sets the appropriate constants for the magic and version fields. It then calculates the header checksum and fills in the checksum field. SEE ALSO
lstat(2) University of Illinois Jan 2001 th_set_from_stat(3)
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